diff options
Diffstat (limited to 'drivers')
596 files changed, 19395 insertions, 7691 deletions
diff --git a/drivers/Kconfig b/drivers/Kconfig index aa43b911ccef..8f451449abd3 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -166,4 +166,6 @@ source "drivers/reset/Kconfig" source "drivers/fmc/Kconfig" +source "drivers/phy/Kconfig" + endmenu diff --git a/drivers/Makefile b/drivers/Makefile index ab93de8297f1..687da899cadb 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -8,6 +8,8 @@ obj-y += irqchip/ obj-y += bus/ +obj-$(CONFIG_GENERIC_PHY) += phy/ + # GPIO must come after pinctrl as gpios may need to mux pins etc obj-y += pinctrl/ obj-y += gpio/ diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 22327e6a7236..6efe2ac6902f 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -24,7 +24,7 @@ menuconfig ACPI are configured, ACPI is used. The project home page for the Linux ACPI subsystem is here: - <http://www.lesswatts.org/projects/acpi/> + <https://01.org/linux-acpi> Linux support for ACPI is based on Intel Corporation's ACPI Component Architecture (ACPI CA). For more information on the @@ -123,9 +123,9 @@ config ACPI_BUTTON default y help This driver handles events on the power, sleep, and lid buttons. - A daemon reads /proc/acpi/event and perform user-defined actions - such as shutting down the system. This is necessary for - software-controlled poweroff. + A daemon reads events from input devices or via netlink and + performs user-defined actions such as shutting down the system. + This is necessary for software-controlled poweroff. To compile this driver as a module, choose M here: the module will be called button. diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 59d3202f6b36..a94383d1f350 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -1025,60 +1025,4 @@ void acpi_dev_pm_detach(struct device *dev, bool power_off) } } EXPORT_SYMBOL_GPL(acpi_dev_pm_detach); - -/** - * acpi_dev_pm_add_dependent - Add physical device depending for PM. - * @handle: Handle of ACPI device node. - * @depdev: Device depending on that node for PM. - */ -void acpi_dev_pm_add_dependent(acpi_handle handle, struct device *depdev) -{ - struct acpi_device_physical_node *dep; - struct acpi_device *adev; - - if (!depdev || acpi_bus_get_device(handle, &adev)) - return; - - mutex_lock(&adev->physical_node_lock); - - list_for_each_entry(dep, &adev->power_dependent, node) - if (dep->dev == depdev) - goto out; - - dep = kzalloc(sizeof(*dep), GFP_KERNEL); - if (dep) { - dep->dev = depdev; - list_add_tail(&dep->node, &adev->power_dependent); - } - - out: - mutex_unlock(&adev->physical_node_lock); -} -EXPORT_SYMBOL_GPL(acpi_dev_pm_add_dependent); - -/** - * acpi_dev_pm_remove_dependent - Remove physical device depending for PM. - * @handle: Handle of ACPI device node. - * @depdev: Device depending on that node for PM. - */ -void acpi_dev_pm_remove_dependent(acpi_handle handle, struct device *depdev) -{ - struct acpi_device_physical_node *dep; - struct acpi_device *adev; - - if (!depdev || acpi_bus_get_device(handle, &adev)) - return; - - mutex_lock(&adev->physical_node_lock); - - list_for_each_entry(dep, &adev->power_dependent, node) - if (dep->dev == depdev) { - list_del(&dep->node); - kfree(dep); - break; - } - - mutex_unlock(&adev->physical_node_lock); -} -EXPORT_SYMBOL_GPL(acpi_dev_pm_remove_dependent); #endif /* CONFIG_PM */ diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 0dbe5cdf3396..c2ad391d8041 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -59,16 +59,9 @@ ACPI_MODULE_NAME("power"); #define ACPI_POWER_RESOURCE_STATE_ON 0x01 #define ACPI_POWER_RESOURCE_STATE_UNKNOWN 0xFF -struct acpi_power_dependent_device { - struct list_head node; - struct acpi_device *adev; - struct work_struct work; -}; - struct acpi_power_resource { struct acpi_device device; struct list_head list_node; - struct list_head dependent; char *name; u32 system_level; u32 order; @@ -233,32 +226,6 @@ static int acpi_power_get_list_state(struct list_head *list, int *state) return 0; } -static void acpi_power_resume_dependent(struct work_struct *work) -{ - struct acpi_power_dependent_device *dep; - struct acpi_device_physical_node *pn; - struct acpi_device *adev; - int state; - - dep = container_of(work, struct acpi_power_dependent_device, work); - adev = dep->adev; - if (acpi_power_get_inferred_state(adev, &state)) - return; - - if (state > ACPI_STATE_D0) - return; - - mutex_lock(&adev->physical_node_lock); - - list_for_each_entry(pn, &adev->physical_node_list, node) - pm_request_resume(pn->dev); - - list_for_each_entry(pn, &adev->power_dependent, node) - pm_request_resume(pn->dev); - - mutex_unlock(&adev->physical_node_lock); -} - static int __acpi_power_on(struct acpi_power_resource *resource) { acpi_status status = AE_OK; @@ -283,14 +250,8 @@ static int acpi_power_on_unlocked(struct acpi_power_resource *resource) resource->name)); } else { result = __acpi_power_on(resource); - if (result) { + if (result) resource->ref_count--; - } else { - struct acpi_power_dependent_device *dep; - - list_for_each_entry(dep, &resource->dependent, node) - schedule_work(&dep->work); - } } return result; } @@ -390,52 +351,6 @@ static int acpi_power_on_list(struct list_head *list) return result; } -static void acpi_power_add_dependent(struct acpi_power_resource *resource, - struct acpi_device *adev) -{ - struct acpi_power_dependent_device *dep; - - mutex_lock(&resource->resource_lock); - - list_for_each_entry(dep, &resource->dependent, node) - if (dep->adev == adev) - goto out; - - dep = kzalloc(sizeof(*dep), GFP_KERNEL); - if (!dep) - goto out; - - dep->adev = adev; - INIT_WORK(&dep->work, acpi_power_resume_dependent); - list_add_tail(&dep->node, &resource->dependent); - - out: - mutex_unlock(&resource->resource_lock); -} - -static void acpi_power_remove_dependent(struct acpi_power_resource *resource, - struct acpi_device *adev) -{ - struct acpi_power_dependent_device *dep; - struct work_struct *work = NULL; - - mutex_lock(&resource->resource_lock); - - list_for_each_entry(dep, &resource->dependent, node) - if (dep->adev == adev) { - list_del(&dep->node); - work = &dep->work; - break; - } - - mutex_unlock(&resource->resource_lock); - - if (work) { - cancel_work_sync(work); - kfree(dep); - } -} - static struct attribute *attrs[] = { NULL, }; @@ -524,8 +439,6 @@ static void acpi_power_expose_hide(struct acpi_device *adev, void acpi_power_add_remove_device(struct acpi_device *adev, bool add) { - struct acpi_device_power_state *ps; - struct acpi_power_resource_entry *entry; int state; if (adev->wakeup.flags.valid) @@ -535,16 +448,6 @@ void acpi_power_add_remove_device(struct acpi_device *adev, bool add) if (!adev->power.flags.power_resources) return; - ps = &adev->power.states[ACPI_STATE_D0]; - list_for_each_entry(entry, &ps->resources, node) { - struct acpi_power_resource *resource = entry->resource; - - if (add) - acpi_power_add_dependent(resource, adev); - else - acpi_power_remove_dependent(resource, adev); - } - for (state = ACPI_STATE_D0; state <= ACPI_STATE_D3_HOT; state++) acpi_power_expose_hide(adev, &adev->power.states[state].resources, @@ -882,7 +785,6 @@ int acpi_add_power_resource(acpi_handle handle) acpi_init_device_object(device, handle, ACPI_BUS_TYPE_POWER, ACPI_STA_DEFAULT); mutex_init(&resource->resource_lock); - INIT_LIST_HEAD(&resource->dependent); INIT_LIST_HEAD(&resource->list_node); resource->name = device->pnp.bus_id; strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME); @@ -936,8 +838,10 @@ void acpi_resume_power_resources(void) mutex_lock(&resource->resource_lock); result = acpi_power_get_state(resource->device.handle, &state); - if (result) + if (result) { + mutex_unlock(&resource->resource_lock); continue; + } if (state == ACPI_POWER_RESOURCE_STATE_OFF && resource->ref_count) { diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 407ad13cac2f..fee8a297c7d9 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -999,7 +999,6 @@ int acpi_device_add(struct acpi_device *device, INIT_LIST_HEAD(&device->wakeup_list); INIT_LIST_HEAD(&device->physical_node_list); mutex_init(&device->physical_node_lock); - INIT_LIST_HEAD(&device->power_dependent); new_bus_id = kzalloc(sizeof(struct acpi_device_bus_id), GFP_KERNEL); if (!new_bus_id) { diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 9d715ae5ff6b..8e28f923cf7f 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1343,7 +1343,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss) host->flags |= ATA_HOST_PARALLEL_SCAN; else - printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n"); + dev_info(&pdev->dev, "SSS flag set, parallel bus scan disabled\n"); if (pi.flags & ATA_FLAG_EM) ahci_reset_em(host); diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c index 2daaee05cab1..7d3b85385bfc 100644 --- a/drivers/ata/ahci_platform.c +++ b/drivers/ata/ahci_platform.c @@ -184,7 +184,7 @@ static int ahci_probe(struct platform_device *pdev) if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss) host->flags |= ATA_HOST_PARALLEL_SCAN; else - printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n"); + dev_info(dev, "SSS flag set, parallel bus scan disabled\n"); if (pi.flags & ATA_FLAG_EM) ahci_reset_em(host); diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index acfd0f711069..aaac4fb0d564 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -778,8 +778,16 @@ static void ahci_start_port(struct ata_port *ap) rc = ap->ops->transmit_led_message(ap, emp->led_state, 4); + /* + * If busy, give a breather but do not + * release EH ownership by using msleep() + * instead of ata_msleep(). EM Transmit + * bit is busy for the whole host and + * releasing ownership will cause other + * ports to fail the same way. + */ if (rc == -EBUSY) - ata_msleep(ap, 1); + msleep(1); else break; } diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 4ba8b0405572..ab714d2ad978 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -1035,17 +1035,3 @@ void ata_acpi_on_disable(struct ata_device *dev) { ata_acpi_clear_gtf(dev); } - -void ata_scsi_acpi_bind(struct ata_device *dev) -{ - acpi_handle handle = ata_dev_acpi_handle(dev); - if (handle) - acpi_dev_pm_add_dependent(handle, &dev->sdev->sdev_gendev); -} - -void ata_scsi_acpi_unbind(struct ata_device *dev) -{ - acpi_handle handle = ata_dev_acpi_handle(dev); - if (handle) - acpi_dev_pm_remove_dependent(handle, &dev->sdev->sdev_gendev); -} diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index c69fcce505c0..370462fa8e01 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -1322,14 +1322,14 @@ void ata_eh_qc_complete(struct ata_queued_cmd *qc) * should be retried. To be used from EH. * * SCSI midlayer limits the number of retries to scmd->allowed. - * scmd->retries is decremented for commands which get retried + * scmd->allowed is incremented for commands which get retried * due to unrelated failures (qc->err_mask is zero). */ void ata_eh_qc_retry(struct ata_queued_cmd *qc) { struct scsi_cmnd *scmd = qc->scsicmd; - if (!qc->err_mask && scmd->retries) - scmd->retries--; + if (!qc->err_mask) + scmd->allowed++; __ata_eh_qc_complete(qc); } diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 97a0cef12959..db6dfcfa3e2e 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3679,7 +3679,6 @@ void ata_scsi_scan_host(struct ata_port *ap, int sync) if (!IS_ERR(sdev)) { dev->sdev = sdev; scsi_device_put(sdev); - ata_scsi_acpi_bind(dev); } else { dev->sdev = NULL; } @@ -3767,8 +3766,6 @@ static void ata_scsi_remove_dev(struct ata_device *dev) struct scsi_device *sdev; unsigned long flags; - ata_scsi_acpi_unbind(dev); - /* Alas, we need to grab scan_mutex to ensure SCSI device * state doesn't change underneath us and thus * scsi_device_get() always succeeds. The mutex locking can diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index eeeb77845d48..45b5ab3a95d5 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -121,8 +121,6 @@ extern void ata_acpi_set_state(struct ata_port *ap, pm_message_t state); extern void ata_acpi_bind_port(struct ata_port *ap); extern void ata_acpi_bind_dev(struct ata_device *dev); extern acpi_handle ata_dev_acpi_handle(struct ata_device *dev); -extern void ata_scsi_acpi_bind(struct ata_device *dev); -extern void ata_scsi_acpi_unbind(struct ata_device *dev); #else static inline void ata_acpi_dissociate(struct ata_host *host) { } static inline int ata_acpi_on_suspend(struct ata_port *ap) { return 0; } @@ -133,8 +131,6 @@ static inline void ata_acpi_set_state(struct ata_port *ap, pm_message_t state) { } static inline void ata_acpi_bind_port(struct ata_port *ap) {} static inline void ata_acpi_bind_dev(struct ata_device *dev) {} -static inline void ata_scsi_acpi_bind(struct ata_device *dev) {} -static inline void ata_scsi_acpi_unbind(struct ata_device *dev) {} #endif /* libata-scsi.c */ diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c index 4bceb8803a10..b33d1f99b3a4 100644 --- a/drivers/ata/pata_isapnp.c +++ b/drivers/ata/pata_isapnp.c @@ -78,7 +78,7 @@ static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id *dev ap->ioaddr.cmd_addr = cmd_addr; - if (pnp_port_valid(idev, 1) == 0) { + if (pnp_port_valid(idev, 1)) { ctl_addr = devm_ioport_map(&idev->dev, pnp_port_start(idev, 1), 1); ap->ioaddr.altstatus_addr = ctl_addr; diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 4c289ab91357..73f6c2925281 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -591,37 +591,6 @@ void bus_remove_device(struct device *dev) bus_put(dev->bus); } -static int driver_add_attrs(struct bus_type *bus, struct device_driver *drv) -{ - int error = 0; - int i; - - if (bus->drv_attrs) { - for (i = 0; bus->drv_attrs[i].attr.name; i++) { - error = driver_create_file(drv, &bus->drv_attrs[i]); - if (error) - goto err; - } - } -done: - return error; -err: - while (--i >= 0) - driver_remove_file(drv, &bus->drv_attrs[i]); - goto done; -} - -static void driver_remove_attrs(struct bus_type *bus, - struct device_driver *drv) -{ - int i; - - if (bus->drv_attrs) { - for (i = 0; bus->drv_attrs[i].attr.name; i++) - driver_remove_file(drv, &bus->drv_attrs[i]); - } -} - static int __must_check add_bind_files(struct device_driver *drv) { int ret; @@ -720,16 +689,12 @@ int bus_add_driver(struct device_driver *drv) printk(KERN_ERR "%s: uevent attr (%s) failed\n", __func__, drv->name); } - error = driver_add_attrs(bus, drv); + error = driver_add_groups(drv, bus->drv_groups); if (error) { /* How the hell do we get out of this pickle? Give up */ - printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n", - __func__, drv->name); - } - error = driver_add_groups(drv, bus->drv_groups); - if (error) printk(KERN_ERR "%s: driver_create_groups(%s) failed\n", __func__, drv->name); + } if (!drv->suppress_bind_attrs) { error = add_bind_files(drv); @@ -766,7 +731,6 @@ void bus_remove_driver(struct device_driver *drv) if (!drv->suppress_bind_attrs) remove_bind_files(drv); - driver_remove_attrs(drv->bus, drv); driver_remove_groups(drv, drv->bus->drv_groups); driver_remove_file(drv, &driver_attr_uevent); klist_remove(&drv->p->knode_bus); @@ -846,42 +810,6 @@ struct bus_type *find_bus(char *name) } #endif /* 0 */ - -/** - * bus_add_attrs - Add default attributes for this bus. - * @bus: Bus that has just been registered. - */ - -static int bus_add_attrs(struct bus_type *bus) -{ - int error = 0; - int i; - - if (bus->bus_attrs) { - for (i = 0; bus->bus_attrs[i].attr.name; i++) { - error = bus_create_file(bus, &bus->bus_attrs[i]); - if (error) - goto err; - } - } -done: - return error; -err: - while (--i >= 0) - bus_remove_file(bus, &bus->bus_attrs[i]); - goto done; -} - -static void bus_remove_attrs(struct bus_type *bus) -{ - int i; - - if (bus->bus_attrs) { - for (i = 0; bus->bus_attrs[i].attr.name; i++) - bus_remove_file(bus, &bus->bus_attrs[i]); - } -} - static int bus_add_groups(struct bus_type *bus, const struct attribute_group **groups) { @@ -983,9 +911,6 @@ int bus_register(struct bus_type *bus) if (retval) goto bus_probe_files_fail; - retval = bus_add_attrs(bus); - if (retval) - goto bus_attrs_fail; retval = bus_add_groups(bus, bus->bus_groups); if (retval) goto bus_groups_fail; @@ -994,8 +919,6 @@ int bus_register(struct bus_type *bus) return 0; bus_groups_fail: - bus_remove_attrs(bus); -bus_attrs_fail: remove_probe_files(bus); bus_probe_files_fail: kset_unregister(bus->p->drivers_kset); @@ -1024,7 +947,6 @@ void bus_unregister(struct bus_type *bus) pr_debug("bus: '%s': unregistering\n", bus->name); if (bus->dev_root) device_unregister(bus->dev_root); - bus_remove_attrs(bus); bus_remove_groups(bus, bus->bus_groups); remove_probe_files(bus); kset_unregister(bus->p->drivers_kset); diff --git a/drivers/base/class.c b/drivers/base/class.c index 8b7818b80056..f96f70419a78 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -47,18 +47,6 @@ static ssize_t class_attr_store(struct kobject *kobj, struct attribute *attr, return ret; } -static const void *class_attr_namespace(struct kobject *kobj, - const struct attribute *attr) -{ - struct class_attribute *class_attr = to_class_attr(attr); - struct subsys_private *cp = to_subsys_private(kobj); - const void *ns = NULL; - - if (class_attr->namespace) - ns = class_attr->namespace(cp->class, class_attr); - return ns; -} - static void class_release(struct kobject *kobj) { struct subsys_private *cp = to_subsys_private(kobj); @@ -86,7 +74,6 @@ static const struct kobj_ns_type_operations *class_child_ns_type(struct kobject static const struct sysfs_ops class_sysfs_ops = { .show = class_attr_show, .store = class_attr_store, - .namespace = class_attr_namespace, }; static struct kobj_type class_ktype = { @@ -99,21 +86,23 @@ static struct kobj_type class_ktype = { static struct kset *class_kset; -int class_create_file(struct class *cls, const struct class_attribute *attr) +int class_create_file_ns(struct class *cls, const struct class_attribute *attr, + const void *ns) { int error; if (cls) - error = sysfs_create_file(&cls->p->subsys.kobj, - &attr->attr); + error = sysfs_create_file_ns(&cls->p->subsys.kobj, + &attr->attr, ns); else error = -EINVAL; return error; } -void class_remove_file(struct class *cls, const struct class_attribute *attr) +void class_remove_file_ns(struct class *cls, const struct class_attribute *attr, + const void *ns) { if (cls) - sysfs_remove_file(&cls->p->subsys.kobj, &attr->attr); + sysfs_remove_file_ns(&cls->p->subsys.kobj, &attr->attr, ns); } static struct class *class_get(struct class *cls) @@ -600,8 +589,8 @@ int __init classes_init(void) return 0; } -EXPORT_SYMBOL_GPL(class_create_file); -EXPORT_SYMBOL_GPL(class_remove_file); +EXPORT_SYMBOL_GPL(class_create_file_ns); +EXPORT_SYMBOL_GPL(class_remove_file_ns); EXPORT_SYMBOL_GPL(class_unregister); EXPORT_SYMBOL_GPL(class_destroy); diff --git a/drivers/base/core.c b/drivers/base/core.c index 34abf4d8a45f..67b180d855b2 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -455,64 +455,6 @@ static ssize_t online_store(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR_RW(online); -static int device_add_attributes(struct device *dev, - struct device_attribute *attrs) -{ - int error = 0; - int i; - - if (attrs) { - for (i = 0; attrs[i].attr.name; i++) { - error = device_create_file(dev, &attrs[i]); - if (error) - break; - } - if (error) - while (--i >= 0) - device_remove_file(dev, &attrs[i]); - } - return error; -} - -static void device_remove_attributes(struct device *dev, - struct device_attribute *attrs) -{ - int i; - - if (attrs) - for (i = 0; attrs[i].attr.name; i++) - device_remove_file(dev, &attrs[i]); -} - -static int device_add_bin_attributes(struct device *dev, - struct bin_attribute *attrs) -{ - int error = 0; - int i; - - if (attrs) { - for (i = 0; attrs[i].attr.name; i++) { - error = device_create_bin_file(dev, &attrs[i]); - if (error) - break; - } - if (error) - while (--i >= 0) - device_remove_bin_file(dev, &attrs[i]); - } - return error; -} - -static void device_remove_bin_attributes(struct device *dev, - struct bin_attribute *attrs) -{ - int i; - - if (attrs) - for (i = 0; attrs[i].attr.name; i++) - device_remove_bin_file(dev, &attrs[i]); -} - int device_add_groups(struct device *dev, const struct attribute_group **groups) { return sysfs_create_groups(&dev->kobj, groups); @@ -534,18 +476,12 @@ static int device_add_attrs(struct device *dev) error = device_add_groups(dev, class->dev_groups); if (error) return error; - error = device_add_attributes(dev, class->dev_attrs); - if (error) - goto err_remove_class_groups; - error = device_add_bin_attributes(dev, class->dev_bin_attrs); - if (error) - goto err_remove_class_attrs; } if (type) { error = device_add_groups(dev, type->groups); if (error) - goto err_remove_class_bin_attrs; + goto err_remove_class_groups; } error = device_add_groups(dev, dev->groups); @@ -563,12 +499,6 @@ static int device_add_attrs(struct device *dev) err_remove_type_groups: if (type) device_remove_groups(dev, type->groups); - err_remove_class_bin_attrs: - if (class) - device_remove_bin_attributes(dev, class->dev_bin_attrs); - err_remove_class_attrs: - if (class) - device_remove_attributes(dev, class->dev_attrs); err_remove_class_groups: if (class) device_remove_groups(dev, class->dev_groups); @@ -587,11 +517,8 @@ static void device_remove_attrs(struct device *dev) if (type) device_remove_groups(dev, type->groups); - if (class) { - device_remove_attributes(dev, class->dev_attrs); - device_remove_bin_attributes(dev, class->dev_bin_attrs); + if (class) device_remove_groups(dev, class->dev_groups); - } } static ssize_t dev_show(struct device *dev, struct device_attribute *attr, @@ -1881,6 +1808,7 @@ EXPORT_SYMBOL_GPL(device_destroy); */ int device_rename(struct device *dev, const char *new_name) { + struct kobject *kobj = &dev->kobj; char *old_device_name = NULL; int error; @@ -1888,8 +1816,7 @@ int device_rename(struct device *dev, const char *new_name) if (!dev) return -EINVAL; - pr_debug("device: '%s': %s: renaming to '%s'\n", dev_name(dev), - __func__, new_name); + dev_dbg(dev, "renaming to %s\n", new_name); old_device_name = kstrdup(dev_name(dev), GFP_KERNEL); if (!old_device_name) { @@ -1898,13 +1825,14 @@ int device_rename(struct device *dev, const char *new_name) } if (dev->class) { - error = sysfs_rename_link(&dev->class->p->subsys.kobj, - &dev->kobj, old_device_name, new_name); + error = sysfs_rename_link_ns(&dev->class->p->subsys.kobj, + kobj, old_device_name, + new_name, kobject_namespace(kobj)); if (error) goto out; } - error = kobject_rename(&dev->kobj, new_name); + error = kobject_rename(kobj, new_name); if (error) goto out; diff --git a/drivers/base/devres.c b/drivers/base/devres.c index 507379e7b763..545c4de412c3 100644 --- a/drivers/base/devres.c +++ b/drivers/base/devres.c @@ -91,7 +91,8 @@ static __always_inline struct devres * alloc_dr(dr_release_t release, if (unlikely(!dr)) return NULL; - memset(dr, 0, tot_size); + memset(dr, 0, offsetof(struct devres, data)); + INIT_LIST_HEAD(&dr->node.entry); dr->node.release = release; return dr; @@ -110,7 +111,7 @@ void * __devres_alloc(dr_release_t release, size_t size, gfp_t gfp, { struct devres *dr; - dr = alloc_dr(release, size, gfp); + dr = alloc_dr(release, size, gfp | __GFP_ZERO); if (unlikely(!dr)) return NULL; set_node_dbginfo(&dr->node, name, size); @@ -135,7 +136,7 @@ void * devres_alloc(dr_release_t release, size_t size, gfp_t gfp) { struct devres *dr; - dr = alloc_dr(release, size, gfp); + dr = alloc_dr(release, size, gfp | __GFP_ZERO); if (unlikely(!dr)) return NULL; return dr->data; @@ -745,58 +746,62 @@ void devm_remove_action(struct device *dev, void (*action)(void *), void *data) EXPORT_SYMBOL_GPL(devm_remove_action); /* - * Managed kzalloc/kfree + * Managed kmalloc/kfree */ -static void devm_kzalloc_release(struct device *dev, void *res) +static void devm_kmalloc_release(struct device *dev, void *res) { /* noop */ } -static int devm_kzalloc_match(struct device *dev, void *res, void *data) +static int devm_kmalloc_match(struct device *dev, void *res, void *data) { return res == data; } /** - * devm_kzalloc - Resource-managed kzalloc + * devm_kmalloc - Resource-managed kmalloc * @dev: Device to allocate memory for * @size: Allocation size * @gfp: Allocation gfp flags * - * Managed kzalloc. Memory allocated with this function is + * Managed kmalloc. Memory allocated with this function is * automatically freed on driver detach. Like all other devres * resources, guaranteed alignment is unsigned long long. * * RETURNS: * Pointer to allocated memory on success, NULL on failure. */ -void * devm_kzalloc(struct device *dev, size_t size, gfp_t gfp) +void * devm_kmalloc(struct device *dev, size_t size, gfp_t gfp) { struct devres *dr; /* use raw alloc_dr for kmalloc caller tracing */ - dr = alloc_dr(devm_kzalloc_release, size, gfp); + dr = alloc_dr(devm_kmalloc_release, size, gfp); if (unlikely(!dr)) return NULL; + /* + * This is named devm_kzalloc_release for historical reasons + * The initial implementation did not support kmalloc, only kzalloc + */ set_node_dbginfo(&dr->node, "devm_kzalloc_release", size); devres_add(dev, dr->data); return dr->data; } -EXPORT_SYMBOL_GPL(devm_kzalloc); +EXPORT_SYMBOL_GPL(devm_kmalloc); /** * devm_kfree - Resource-managed kfree * @dev: Device this memory belongs to * @p: Memory to free * - * Free memory allocated with devm_kzalloc(). + * Free memory allocated with devm_kmalloc(). */ void devm_kfree(struct device *dev, void *p) { int rc; - rc = devres_destroy(dev, devm_kzalloc_release, devm_kzalloc_match, p); + rc = devres_destroy(dev, devm_kmalloc_release, devm_kmalloc_match, p); WARN_ON(rc); } EXPORT_SYMBOL_GPL(devm_kfree); diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index 10a4467c63f1..eb8fb94ae2c5 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -282,31 +282,35 @@ static noinline_for_stack long fw_file_size(struct file *file) return st.size; } -static bool fw_read_file_contents(struct file *file, struct firmware_buf *fw_buf) +static int fw_read_file_contents(struct file *file, struct firmware_buf *fw_buf) { long size; char *buf; + int rc; size = fw_file_size(file); if (size <= 0) - return false; + return -EINVAL; buf = vmalloc(size); if (!buf) - return false; - if (kernel_read(file, 0, buf, size) != size) { + return -ENOMEM; + rc = kernel_read(file, 0, buf, size); + if (rc != size) { + if (rc > 0) + rc = -EIO; vfree(buf); - return false; + return rc; } fw_buf->data = buf; fw_buf->size = size; - return true; + return 0; } -static bool fw_get_filesystem_firmware(struct device *device, +static int fw_get_filesystem_firmware(struct device *device, struct firmware_buf *buf) { int i; - bool success = false; + int rc = -ENOENT; char *path = __getname(); for (i = 0; i < ARRAY_SIZE(fw_path); i++) { @@ -321,14 +325,17 @@ static bool fw_get_filesystem_firmware(struct device *device, file = filp_open(path, O_RDONLY, 0); if (IS_ERR(file)) continue; - success = fw_read_file_contents(file, buf); + rc = fw_read_file_contents(file, buf); fput(file); - if (success) + if (rc) + dev_warn(device, "firmware, attempted to load %s, but failed with error %d\n", + path, rc); + else break; } __putname(path); - if (success) { + if (!rc) { dev_dbg(device, "firmware: direct-loading firmware %s\n", buf->fw_id); mutex_lock(&fw_lock); @@ -337,7 +344,7 @@ static bool fw_get_filesystem_firmware(struct device *device, mutex_unlock(&fw_lock); } - return success; + return rc; } /* firmware holds the ownership of pages */ @@ -1086,9 +1093,14 @@ _request_firmware(const struct firmware **firmware_p, const char *name, } } - if (!fw_get_filesystem_firmware(device, fw->priv)) + ret = fw_get_filesystem_firmware(device, fw->priv); + if (ret) { + dev_warn(device, "Direct firmware load failed with error %d\n", + ret); + dev_warn(device, "Falling back to user helper\n"); ret = fw_load_from_user_helper(fw, name, device, uevent, nowait, timeout); + } /* don't cache firmware handled without uevent */ if (!ret) diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 9e59f6535c44..bece691cb5d9 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -333,8 +333,10 @@ store_mem_state(struct device *dev, online_type = ONLINE_KEEP; else if (!strncmp(buf, "offline", min_t(int, count, 7))) online_type = -1; - else - return -EINVAL; + else { + ret = -EINVAL; + goto err; + } switch (online_type) { case ONLINE_KERNEL: @@ -357,6 +359,7 @@ store_mem_state(struct device *dev, ret = -EINVAL; /* should never happen */ } +err: unlock_device_hotplug(); if (ret) diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 4f8bef3eb5a8..47051cd25113 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -488,6 +488,11 @@ static int platform_drv_probe(struct device *_dev) if (ret && ACPI_HANDLE(_dev)) acpi_dev_pm_detach(_dev, true); + if (drv->prevent_deferred_probe && ret == -EPROBE_DEFER) { + dev_warn(_dev, "probe deferral not supported\n"); + ret = -ENXIO; + } + return ret; } @@ -553,8 +558,7 @@ EXPORT_SYMBOL_GPL(platform_driver_unregister); /** * platform_driver_probe - register driver for non-hotpluggable device * @drv: platform driver structure - * @probe: the driver probe routine, probably from an __init section, - * must not return -EPROBE_DEFER. + * @probe: the driver probe routine, probably from an __init section * * Use this instead of platform_driver_register() when you know the device * is not hotpluggable and has already been registered, and you want to @@ -565,8 +569,7 @@ EXPORT_SYMBOL_GPL(platform_driver_unregister); * into system-on-chip processors, where the controller devices have been * configured as part of board setup. * - * This is incompatible with deferred probing so probe() must not - * return -EPROBE_DEFER. + * Note that this is incompatible with deferred probing. * * Returns zero if the driver registered and bound to a device, else returns * a negative error code and with the driver not registered. @@ -576,6 +579,12 @@ int __init_or_module platform_driver_probe(struct platform_driver *drv, { int retval, code; + /* + * Prevent driver from requesting probe deferral to avoid further + * futile probe attempts. + */ + drv->prevent_deferred_probe = true; + /* make sure driver won't have bind/unbind attributes */ drv->driver.suppress_bind_attrs = true; diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c index 90ee350442a9..e15430a82e90 100644 --- a/drivers/bcma/main.c +++ b/drivers/bcma/main.c @@ -30,28 +30,37 @@ static ssize_t manuf_show(struct device *dev, struct device_attribute *attr, cha struct bcma_device *core = container_of(dev, struct bcma_device, dev); return sprintf(buf, "0x%03X\n", core->id.manuf); } +static DEVICE_ATTR_RO(manuf); + static ssize_t id_show(struct device *dev, struct device_attribute *attr, char *buf) { struct bcma_device *core = container_of(dev, struct bcma_device, dev); return sprintf(buf, "0x%03X\n", core->id.id); } +static DEVICE_ATTR_RO(id); + static ssize_t rev_show(struct device *dev, struct device_attribute *attr, char *buf) { struct bcma_device *core = container_of(dev, struct bcma_device, dev); return sprintf(buf, "0x%02X\n", core->id.rev); } +static DEVICE_ATTR_RO(rev); + static ssize_t class_show(struct device *dev, struct device_attribute *attr, char *buf) { struct bcma_device *core = container_of(dev, struct bcma_device, dev); return sprintf(buf, "0x%X\n", core->id.class); } -static struct device_attribute bcma_device_attrs[] = { - __ATTR_RO(manuf), - __ATTR_RO(id), - __ATTR_RO(rev), - __ATTR_RO(class), - __ATTR_NULL, +static DEVICE_ATTR_RO(class); + +static struct attribute *bcma_device_attrs[] = { + &dev_attr_manuf.attr, + &dev_attr_id.attr, + &dev_attr_rev.attr, + &dev_attr_class.attr, + NULL, }; +ATTRIBUTE_GROUPS(bcma_device); static struct bus_type bcma_bus_type = { .name = "bcma", @@ -59,7 +68,7 @@ static struct bus_type bcma_bus_type = { .probe = bcma_device_probe, .remove = bcma_device_remove, .uevent = bcma_device_uevent, - .dev_attrs = bcma_device_attrs, + .dev_groups = bcma_device_groups, }; static u16 bcma_cc_core_id(struct bcma_bus *bus) diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index 448ce5e29c56..dca5834685cf 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -486,8 +486,7 @@ static int hpet_ioctl_ieon(struct hpet_dev *devp) } sprintf(devp->hd_name, "hpet%d", (int)(devp - hpetp->hp_dev)); - irq_flags = devp->hd_flags & HPET_SHARED_IRQ - ? IRQF_SHARED : IRQF_DISABLED; + irq_flags = devp->hd_flags & HPET_SHARED_IRQ ? IRQF_SHARED : 0; if (request_irq(irq, hpet_interrupt, irq_flags, devp->hd_name, (void *)devp)) { printk(KERN_ERR "hpet: IRQ %d is not free\n", irq); @@ -971,8 +970,6 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data) struct acpi_resource_fixed_memory32 *fixmem32; fixmem32 = &res->data.fixed_memory32; - if (!fixmem32) - return AE_NO_MEMORY; hdp->hd_phys_address = fixmem32->address; hdp->hd_address = ioremap(fixmem32->address, diff --git a/drivers/char/misc.c b/drivers/char/misc.c index 190d4423653f..2f685f6eda48 100644 --- a/drivers/char/misc.c +++ b/drivers/char/misc.c @@ -193,8 +193,8 @@ int misc_register(struct miscdevice * misc) if (misc->minor == MISC_DYNAMIC_MINOR) { int i = find_first_zero_bit(misc_minors, DYNAMIC_MINORS); if (i >= DYNAMIC_MINORS) { - mutex_unlock(&misc_mtx); - return -EBUSY; + err = -EBUSY; + goto out; } misc->minor = DYNAMIC_MINORS - i - 1; set_bit(i, misc_minors); @@ -203,8 +203,8 @@ int misc_register(struct miscdevice * misc) list_for_each_entry(c, &misc_list, list) { if (c->minor == misc->minor) { - mutex_unlock(&misc_mtx); - return -EBUSY; + err = -EBUSY; + goto out; } } } diff --git a/drivers/char/nwbutton.c b/drivers/char/nwbutton.c index cfdfe493c6af..1fd00dc06897 100644 --- a/drivers/char/nwbutton.c +++ b/drivers/char/nwbutton.c @@ -220,7 +220,7 @@ static int __init nwbutton_init(void) return -EBUSY; } - if (request_irq (IRQ_NETWINDER_BUTTON, button_handler, IRQF_DISABLED, + if (request_irq (IRQ_NETWINDER_BUTTON, button_handler, 0, "nwbutton", NULL)) { printk (KERN_WARNING "nwbutton: IRQ %d is not free.\n", IRQ_NETWINDER_BUTTON); diff --git a/drivers/char/random.c b/drivers/char/random.c index 7737b5bd26af..7a744d391756 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -640,7 +640,7 @@ struct timer_rand_state { */ void add_device_randomness(const void *buf, unsigned int size) { - unsigned long time = get_cycles() ^ jiffies; + unsigned long time = random_get_entropy() ^ jiffies; mix_pool_bytes(&input_pool, buf, size, NULL); mix_pool_bytes(&input_pool, &time, sizeof(time), NULL); @@ -677,7 +677,7 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num) goto out; sample.jiffies = jiffies; - sample.cycles = get_cycles(); + sample.cycles = random_get_entropy(); sample.num = num; mix_pool_bytes(&input_pool, &sample, sizeof(sample), NULL); @@ -744,7 +744,7 @@ void add_interrupt_randomness(int irq, int irq_flags) struct fast_pool *fast_pool = &__get_cpu_var(irq_randomness); struct pt_regs *regs = get_irq_regs(); unsigned long now = jiffies; - __u32 input[4], cycles = get_cycles(); + __u32 input[4], cycles = random_get_entropy(); input[0] = cycles ^ jiffies; input[1] = irq; @@ -1459,12 +1459,11 @@ struct ctl_table random_table[] = { static u32 random_int_secret[MD5_MESSAGE_BYTES / 4] ____cacheline_aligned; -static int __init random_int_secret_init(void) +int random_int_secret_init(void) { get_random_bytes(random_int_secret, sizeof(random_int_secret)); return 0; } -late_initcall(random_int_secret_init); /* * Get a random word for internal kernel use only. Similar to urandom but @@ -1483,7 +1482,7 @@ unsigned int get_random_int(void) hash = get_cpu_var(get_random_int_hash); - hash[0] += current->pid + jiffies + get_cycles(); + hash[0] += current->pid + jiffies + random_get_entropy(); md5_transform(hash, random_int_secret); ret = hash[0]; put_cpu_var(get_random_int_hash); diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c index c0cbbd429bdc..35259961cc38 100644 --- a/drivers/char/rtc.c +++ b/drivers/char/rtc.c @@ -227,7 +227,7 @@ static inline unsigned char rtc_is_updating(void) #ifdef RTC_IRQ /* - * A very tiny interrupt handler. It runs with IRQF_DISABLED set, + * A very tiny interrupt handler. It runs with interrupts disabled, * but there is possibility of conflicting with the set_rtc_mmss() * call (the rtc irq and the timer irq can easily run at the same * time in two different CPUs). So we need to serialize @@ -1040,8 +1040,7 @@ no_irq: rtc_int_handler_ptr = rtc_interrupt; } - if (request_irq(RTC_IRQ, rtc_int_handler_ptr, IRQF_DISABLED, - "rtc", NULL)) { + if (request_irq(RTC_IRQ, rtc_int_handler_ptr, 0, "rtc", NULL)) { /* Yeah right, seeing as irq 8 doesn't even hit the bus. */ rtc_has_irq = 0; printk(KERN_ERR "rtc: IRQ %d is not free.\n", RTC_IRQ); diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c index 5816b39ff5a9..8bab59292a0d 100644 --- a/drivers/char/snsc.c +++ b/drivers/char/snsc.c @@ -108,8 +108,7 @@ scdrv_open(struct inode *inode, struct file *file) /* hook this subchannel up to the system controller interrupt */ mutex_lock(&scdrv_mutex); rv = request_irq(SGI_UART_VECTOR, scdrv_interrupt, - IRQF_SHARED | IRQF_DISABLED, - SYSCTL_BASENAME, sd); + IRQF_SHARED, SYSCTL_BASENAME, sd); if (rv) { ia64_sn_irtr_close(sd->sd_nasid, sd->sd_subch); kfree(sd); diff --git a/drivers/char/snsc_event.c b/drivers/char/snsc_event.c index ee156948b9f8..59bcefd6ec7c 100644 --- a/drivers/char/snsc_event.c +++ b/drivers/char/snsc_event.c @@ -292,8 +292,7 @@ scdrv_event_init(struct sysctl_data_s *scd) /* hook event subchannel up to the system controller interrupt */ rv = request_irq(SGI_UART_VECTOR, scdrv_event_interrupt, - IRQF_SHARED | IRQF_DISABLED, - "system controller events", event_sd); + IRQF_SHARED, "system controller events", event_sd); if (rv) { printk(KERN_WARNING "%s: irq request failed (%d)\n", __func__, rv); diff --git a/drivers/char/tlclk.c b/drivers/char/tlclk.c index e95e0ab0bd87..100cd1de9939 100644 --- a/drivers/char/tlclk.c +++ b/drivers/char/tlclk.c @@ -222,7 +222,7 @@ static int tlclk_open(struct inode *inode, struct file *filp) /* This device is wired through the FPGA IO space of the ATCA blade * we can't share this IRQ */ result = request_irq(telclk_interrupt, &tlclk_interrupt, - IRQF_DISABLED, "telco_clock", tlclk_interrupt); + 0, "telco_clock", tlclk_interrupt); if (result == -EBUSY) printk(KERN_ERR "tlclk: Interrupt can't be reserved.\n"); else diff --git a/drivers/char/tpm/xen-tpmfront.c b/drivers/char/tpm/xen-tpmfront.c index 06189e55b4e5..94c280d36e8b 100644 --- a/drivers/char/tpm/xen-tpmfront.c +++ b/drivers/char/tpm/xen-tpmfront.c @@ -10,6 +10,7 @@ #include <linux/errno.h> #include <linux/err.h> #include <linux/interrupt.h> +#include <xen/xen.h> #include <xen/events.h> #include <xen/interface/io/tpmif.h> #include <xen/grant_table.h> diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c index 5224da5202d3..f6345f932e46 100644 --- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c +++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c @@ -721,7 +721,7 @@ static int hwicap_remove(struct device *dev) { struct hwicap_drvdata *drvdata; - drvdata = (struct hwicap_drvdata *)dev_get_drvdata(dev); + drvdata = dev_get_drvdata(dev); if (!drvdata) return 0; @@ -731,7 +731,6 @@ static int hwicap_remove(struct device *dev) iounmap(drvdata->base_address); release_mem_region(drvdata->mem_start, drvdata->mem_size); kfree(drvdata); - dev_set_drvdata(dev, NULL); mutex_lock(&icap_sem); probed_devices[MINOR(dev->devt)-XHWICAP_MINOR] = 0; diff --git a/drivers/clk/clk-nomadik.c b/drivers/clk/clk-nomadik.c index 51410c2ac2cb..4d978a3c88f7 100644 --- a/drivers/clk/clk-nomadik.c +++ b/drivers/clk/clk-nomadik.c @@ -27,6 +27,14 @@ */ #define SRC_CR 0x00U +#define SRC_CR_T0_ENSEL BIT(15) +#define SRC_CR_T1_ENSEL BIT(17) +#define SRC_CR_T2_ENSEL BIT(19) +#define SRC_CR_T3_ENSEL BIT(21) +#define SRC_CR_T4_ENSEL BIT(23) +#define SRC_CR_T5_ENSEL BIT(25) +#define SRC_CR_T6_ENSEL BIT(27) +#define SRC_CR_T7_ENSEL BIT(29) #define SRC_XTALCR 0x0CU #define SRC_XTALCR_XTALTIMEN BIT(20) #define SRC_XTALCR_SXTALDIS BIT(19) @@ -543,6 +551,19 @@ void __init nomadik_clk_init(void) __func__, np->name); return; } + + /* Set all timers to use the 2.4 MHz TIMCLK */ + val = readl(src_base + SRC_CR); + val |= SRC_CR_T0_ENSEL; + val |= SRC_CR_T1_ENSEL; + val |= SRC_CR_T2_ENSEL; + val |= SRC_CR_T3_ENSEL; + val |= SRC_CR_T4_ENSEL; + val |= SRC_CR_T5_ENSEL; + val |= SRC_CR_T6_ENSEL; + val |= SRC_CR_T7_ENSEL; + writel(val, src_base + SRC_CR); + val = readl(src_base + SRC_XTALCR); pr_info("SXTALO is %s\n", (val & SRC_XTALCR_SXTALDIS) ? "disabled" : "enabled"); diff --git a/drivers/clk/mvebu/armada-370.c b/drivers/clk/mvebu/armada-370.c index fc777bdc1886..81a202d12a7a 100644 --- a/drivers/clk/mvebu/armada-370.c +++ b/drivers/clk/mvebu/armada-370.c @@ -39,8 +39,8 @@ static const struct coreclk_ratio a370_coreclk_ratios[] __initconst = { }; static const u32 a370_tclk_freqs[] __initconst = { - 16600000, - 20000000, + 166000000, + 200000000, }; static u32 __init a370_get_tclk_freq(void __iomem *sar) diff --git a/drivers/clk/socfpga/clk.c b/drivers/clk/socfpga/clk.c index 5bb848cac6ec..81dd31a686df 100644 --- a/drivers/clk/socfpga/clk.c +++ b/drivers/clk/socfpga/clk.c @@ -49,7 +49,7 @@ #define SOCFPGA_L4_SP_CLK "l4_sp_clk" #define SOCFPGA_NAND_CLK "nand_clk" #define SOCFPGA_NAND_X_CLK "nand_x_clk" -#define SOCFPGA_MMC_CLK "mmc_clk" +#define SOCFPGA_MMC_CLK "sdmmc_clk" #define SOCFPGA_DB_CLK "gpio_db_clk" #define div_mask(width) ((1 << (width)) - 1) diff --git a/drivers/clk/versatile/clk-icst.c b/drivers/clk/versatile/clk-icst.c index 67ccf4aa7277..f5e4c21b301f 100644 --- a/drivers/clk/versatile/clk-icst.c +++ b/drivers/clk/versatile/clk-icst.c @@ -107,7 +107,7 @@ static int icst_set_rate(struct clk_hw *hw, unsigned long rate, vco = icst_hz_to_vco(icst->params, rate); icst->rate = icst_hz(icst->params, vco); - vco_set(icst->vcoreg, icst->lockreg, vco); + vco_set(icst->lockreg, icst->vcoreg, vco); return 0; } diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c index 08ae128cce9b..c73fc2b74de2 100644 --- a/drivers/connector/cn_proc.c +++ b/drivers/connector/cn_proc.c @@ -65,6 +65,7 @@ void proc_fork_connector(struct task_struct *task) msg = (struct cn_msg *)buffer; ev = (struct proc_event *)msg->data; + memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); @@ -80,6 +81,7 @@ void proc_fork_connector(struct task_struct *task) memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id)); msg->ack = 0; /* not used */ msg->len = sizeof(*ev); + msg->flags = 0; /* not used */ /* If cn_netlink_send() failed, the data is not sent */ cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL); } @@ -96,6 +98,7 @@ void proc_exec_connector(struct task_struct *task) msg = (struct cn_msg *)buffer; ev = (struct proc_event *)msg->data; + memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); @@ -106,6 +109,7 @@ void proc_exec_connector(struct task_struct *task) memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id)); msg->ack = 0; /* not used */ msg->len = sizeof(*ev); + msg->flags = 0; /* not used */ cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL); } @@ -122,6 +126,7 @@ void proc_id_connector(struct task_struct *task, int which_id) msg = (struct cn_msg *)buffer; ev = (struct proc_event *)msg->data; + memset(&ev->event_data, 0, sizeof(ev->event_data)); ev->what = which_id; ev->event_data.id.process_pid = task->pid; ev->event_data.id.process_tgid = task->tgid; @@ -145,6 +150,7 @@ void proc_id_connector(struct task_struct *task, int which_id) memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id)); msg->ack = 0; /* not used */ msg->len = sizeof(*ev); + msg->flags = 0; /* not used */ cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL); } @@ -160,6 +166,7 @@ void proc_sid_connector(struct task_struct *task) msg = (struct cn_msg *)buffer; ev = (struct proc_event *)msg->data; + memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); @@ -170,6 +177,7 @@ void proc_sid_connector(struct task_struct *task) memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id)); msg->ack = 0; /* not used */ msg->len = sizeof(*ev); + msg->flags = 0; /* not used */ cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL); } @@ -185,6 +193,7 @@ void proc_ptrace_connector(struct task_struct *task, int ptrace_id) msg = (struct cn_msg *)buffer; ev = (struct proc_event *)msg->data; + memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); @@ -203,6 +212,7 @@ void proc_ptrace_connector(struct task_struct *task, int ptrace_id) memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id)); msg->ack = 0; /* not used */ msg->len = sizeof(*ev); + msg->flags = 0; /* not used */ cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL); } @@ -218,6 +228,7 @@ void proc_comm_connector(struct task_struct *task) msg = (struct cn_msg *)buffer; ev = (struct proc_event *)msg->data; + memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); @@ -229,6 +240,7 @@ void proc_comm_connector(struct task_struct *task) memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id)); msg->ack = 0; /* not used */ msg->len = sizeof(*ev); + msg->flags = 0; /* not used */ cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL); } @@ -244,6 +256,7 @@ void proc_coredump_connector(struct task_struct *task) msg = (struct cn_msg *)buffer; ev = (struct proc_event *)msg->data; + memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); @@ -254,6 +267,7 @@ void proc_coredump_connector(struct task_struct *task) memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id)); msg->ack = 0; /* not used */ msg->len = sizeof(*ev); + msg->flags = 0; /* not used */ cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL); } @@ -269,6 +283,7 @@ void proc_exit_connector(struct task_struct *task) msg = (struct cn_msg *)buffer; ev = (struct proc_event *)msg->data; + memset(&ev->event_data, 0, sizeof(ev->event_data)); get_seq(&msg->seq, &ev->cpu); ktime_get_ts(&ts); /* get high res monotonic timestamp */ put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); @@ -281,6 +296,7 @@ void proc_exit_connector(struct task_struct *task) memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id)); msg->ack = 0; /* not used */ msg->len = sizeof(*ev); + msg->flags = 0; /* not used */ cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL); } @@ -304,6 +320,7 @@ static void cn_proc_ack(int err, int rcvd_seq, int rcvd_ack) msg = (struct cn_msg *)buffer; ev = (struct proc_event *)msg->data; + memset(&ev->event_data, 0, sizeof(ev->event_data)); msg->seq = rcvd_seq; ktime_get_ts(&ts); /* get high res monotonic timestamp */ put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns); @@ -313,6 +330,7 @@ static void cn_proc_ack(int err, int rcvd_seq, int rcvd_ack) memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id)); msg->ack = rcvd_ack + 1; msg->len = sizeof(*ev); + msg->flags = 0; /* not used */ cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL); } diff --git a/drivers/connector/connector.c b/drivers/connector/connector.c index 6ecfa758942c..a36749f1e44a 100644 --- a/drivers/connector/connector.c +++ b/drivers/connector/connector.c @@ -109,7 +109,7 @@ int cn_netlink_send(struct cn_msg *msg, u32 __group, gfp_t gfp_mask) data = nlmsg_data(nlh); - memcpy(data, msg, sizeof(*data) + msg->len); + memcpy(data, msg, size); NETLINK_CB(skb).dst_group = group; @@ -157,17 +157,18 @@ static int cn_call_callback(struct sk_buff *skb) static void cn_rx_skb(struct sk_buff *__skb) { struct nlmsghdr *nlh; - int err; struct sk_buff *skb; + int len, err; skb = skb_get(__skb); if (skb->len >= NLMSG_HDRLEN) { nlh = nlmsg_hdr(skb); + len = nlmsg_len(nlh); - if (nlh->nlmsg_len < sizeof(struct cn_msg) || + if (len < (int)sizeof(struct cn_msg) || skb->len < nlh->nlmsg_len || - nlh->nlmsg_len > CONNECTOR_MAX_MSG_SIZE) { + len > CONNECTOR_MAX_MSG_SIZE) { kfree_skb(skb); return; } diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index d2c3253e015e..506fd23c7550 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -986,12 +986,12 @@ static int __init acpi_cpufreq_init(void) { int ret; + if (acpi_disabled) + return -ENODEV; + /* don't keep reloading if cpufreq_driver exists */ if (cpufreq_get_current_driver()) - return 0; - - if (acpi_disabled) - return 0; + return -EEXIST; pr_debug("acpi_cpufreq_init\n"); diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 32b3479a2405..eb3fdc755000 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -48,7 +48,7 @@ static inline int32_t div_fp(int32_t x, int32_t y) } struct sample { - int core_pct_busy; + int32_t core_pct_busy; u64 aperf; u64 mperf; int freq; @@ -68,7 +68,7 @@ struct _pid { int32_t i_gain; int32_t d_gain; int deadband; - int last_err; + int32_t last_err; }; struct cpudata { @@ -153,16 +153,15 @@ static inline void pid_d_gain_set(struct _pid *pid, int percent) pid->d_gain = div_fp(int_tofp(percent), int_tofp(100)); } -static signed int pid_calc(struct _pid *pid, int busy) +static signed int pid_calc(struct _pid *pid, int32_t busy) { - signed int err, result; + signed int result; int32_t pterm, dterm, fp_error; int32_t integral_limit; - err = pid->setpoint - busy; - fp_error = int_tofp(err); + fp_error = int_tofp(pid->setpoint) - busy; - if (abs(err) <= pid->deadband) + if (abs(fp_error) <= int_tofp(pid->deadband)) return 0; pterm = mul_fp(pid->p_gain, fp_error); @@ -176,8 +175,8 @@ static signed int pid_calc(struct _pid *pid, int busy) if (pid->integral < -integral_limit) pid->integral = -integral_limit; - dterm = mul_fp(pid->d_gain, (err - pid->last_err)); - pid->last_err = err; + dterm = mul_fp(pid->d_gain, fp_error - pid->last_err); + pid->last_err = fp_error; result = pterm + mul_fp(pid->integral, pid->i_gain) + dterm; @@ -367,12 +366,13 @@ static int intel_pstate_turbo_pstate(void) static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max) { int max_perf = cpu->pstate.turbo_pstate; + int max_perf_adj; int min_perf; if (limits.no_turbo) max_perf = cpu->pstate.max_pstate; - max_perf = fp_toint(mul_fp(int_tofp(max_perf), limits.max_perf)); - *max = clamp_t(int, max_perf, + max_perf_adj = fp_toint(mul_fp(int_tofp(max_perf), limits.max_perf)); + *max = clamp_t(int, max_perf_adj, cpu->pstate.min_pstate, cpu->pstate.turbo_pstate); min_perf = fp_toint(mul_fp(int_tofp(max_perf), limits.min_perf)); @@ -383,6 +383,7 @@ static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max) static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate) { int max_perf, min_perf; + u64 val; intel_pstate_get_min_max(cpu, &min_perf, &max_perf); @@ -394,11 +395,11 @@ static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate) trace_cpu_frequency(pstate * 100000, cpu->cpu); cpu->pstate.current_pstate = pstate; + val = pstate << 8; if (limits.no_turbo) - wrmsrl(MSR_IA32_PERF_CTL, BIT(32) | (pstate << 8)); - else - wrmsrl(MSR_IA32_PERF_CTL, pstate << 8); + val |= (u64)1 << 32; + wrmsrl(MSR_IA32_PERF_CTL, val); } static inline void intel_pstate_pstate_increase(struct cpudata *cpu, int steps) @@ -435,8 +436,9 @@ static inline void intel_pstate_calc_busy(struct cpudata *cpu, struct sample *sample) { u64 core_pct; - core_pct = div64_u64(sample->aperf * 100, sample->mperf); - sample->freq = cpu->pstate.max_pstate * core_pct * 1000; + core_pct = div64_u64(int_tofp(sample->aperf * 100), + sample->mperf); + sample->freq = fp_toint(cpu->pstate.max_pstate * core_pct * 1000); sample->core_pct_busy = core_pct; } @@ -468,22 +470,19 @@ static inline void intel_pstate_set_sample_time(struct cpudata *cpu) mod_timer_pinned(&cpu->timer, jiffies + delay); } -static inline int intel_pstate_get_scaled_busy(struct cpudata *cpu) +static inline int32_t intel_pstate_get_scaled_busy(struct cpudata *cpu) { - int32_t busy_scaled; int32_t core_busy, max_pstate, current_pstate; - core_busy = int_tofp(cpu->samples[cpu->sample_ptr].core_pct_busy); + core_busy = cpu->samples[cpu->sample_ptr].core_pct_busy; max_pstate = int_tofp(cpu->pstate.max_pstate); current_pstate = int_tofp(cpu->pstate.current_pstate); - busy_scaled = mul_fp(core_busy, div_fp(max_pstate, current_pstate)); - - return fp_toint(busy_scaled); + return mul_fp(core_busy, div_fp(max_pstate, current_pstate)); } static inline void intel_pstate_adjust_busy_pstate(struct cpudata *cpu) { - int busy_scaled; + int32_t busy_scaled; struct _pid *pid; signed int ctl = 0; int steps; @@ -637,8 +636,8 @@ static int intel_pstate_cpu_exit(struct cpufreq_policy *policy) static int intel_pstate_cpu_init(struct cpufreq_policy *policy) { - int rc, min_pstate, max_pstate; struct cpudata *cpu; + int rc; rc = intel_pstate_init_cpu(policy->cpu); if (rc) @@ -652,9 +651,8 @@ static int intel_pstate_cpu_init(struct cpufreq_policy *policy) else policy->policy = CPUFREQ_POLICY_POWERSAVE; - intel_pstate_get_min_max(cpu, &min_pstate, &max_pstate); - policy->min = min_pstate * 100000; - policy->max = max_pstate * 100000; + policy->min = cpu->pstate.min_pstate * 100000; + policy->max = cpu->pstate.turbo_pstate * 100000; /* cpuinfo and default policy values */ policy->cpuinfo.min_freq = cpu->pstate.min_pstate * 100000; diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c index 8a72b0c555f8..15631f92ab7d 100644 --- a/drivers/cpufreq/s3c64xx-cpufreq.c +++ b/drivers/cpufreq/s3c64xx-cpufreq.c @@ -166,7 +166,7 @@ static void __init s3c64xx_cpufreq_config_regulator(void) if (freq->frequency == CPUFREQ_ENTRY_INVALID) continue; - dvfs = &s3c64xx_dvfs_table[freq->index]; + dvfs = &s3c64xx_dvfs_table[freq->driver_data]; found = 0; for (i = 0; i < count; i++) { diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index 098a8da450f0..10b577fcf48d 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -305,7 +305,9 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg( edma_alloc_slot(EDMA_CTLR(echan->ch_num), EDMA_SLOT_ANY); if (echan->slot[i] < 0) { + kfree(edesc); dev_err(dev, "Failed to allocate slot\n"); + kfree(edesc); return NULL; } } @@ -345,6 +347,7 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg( ccnt = sg_dma_len(sg) / (acnt * bcnt); if (ccnt > (SZ_64K - 1)) { dev_err(dev, "Exceeded max SG segment size\n"); + kfree(edesc); return NULL; } cidx = acnt * bcnt; diff --git a/drivers/dma/sh/rcar-hpbdma.c b/drivers/dma/sh/rcar-hpbdma.c index 45a520281ce1..ebad84591a6e 100644 --- a/drivers/dma/sh/rcar-hpbdma.c +++ b/drivers/dma/sh/rcar-hpbdma.c @@ -93,6 +93,7 @@ struct hpb_dmae_chan { void __iomem *base; const struct hpb_dmae_slave_config *cfg; char dev_id[16]; /* unique name per DMAC of channel */ + dma_addr_t slave_addr; }; struct hpb_dmae_device { @@ -432,7 +433,6 @@ hpb_dmae_alloc_chan_resources(struct hpb_dmae_chan *hpb_chan, hpb_chan->xfer_mode = XFER_DOUBLE; } else { dev_err(hpb_chan->shdma_chan.dev, "DCR setting error"); - shdma_free_irq(&hpb_chan->shdma_chan); return -EINVAL; } @@ -446,7 +446,8 @@ hpb_dmae_alloc_chan_resources(struct hpb_dmae_chan *hpb_chan, return 0; } -static int hpb_dmae_set_slave(struct shdma_chan *schan, int slave_id, bool try) +static int hpb_dmae_set_slave(struct shdma_chan *schan, int slave_id, + dma_addr_t slave_addr, bool try) { struct hpb_dmae_chan *chan = to_chan(schan); const struct hpb_dmae_slave_config *sc = @@ -457,6 +458,7 @@ static int hpb_dmae_set_slave(struct shdma_chan *schan, int slave_id, bool try) if (try) return 0; chan->cfg = sc; + chan->slave_addr = slave_addr ? : sc->addr; return hpb_dmae_alloc_chan_resources(chan, sc); } @@ -468,7 +470,7 @@ static dma_addr_t hpb_dmae_slave_addr(struct shdma_chan *schan) { struct hpb_dmae_chan *chan = to_chan(schan); - return chan->cfg->addr; + return chan->slave_addr; } static struct shdma_desc *hpb_dmae_embedded_desc(void *buf, int i) @@ -614,7 +616,6 @@ static void hpb_dmae_chan_remove(struct hpb_dmae_device *hpbdev) shdma_for_each_chan(schan, &hpbdev->shdma_dev, i) { BUG_ON(!schan); - shdma_free_irq(schan); shdma_chan_remove(schan); } dma_dev->chancnt = 0; diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c index 5985807e52c9..e23f1c2e5053 100644 --- a/drivers/extcon/extcon-adc-jack.c +++ b/drivers/extcon/extcon-adc-jack.c @@ -27,16 +27,16 @@ /** * struct adc_jack_data - internal data for adc_jack device driver - * @edev - extcon device. - * @cable_names - list of supported cables. - * @num_cables - size of cable_names. - * @adc_conditions - list of adc value conditions. - * @num_conditions - size of adc_conditions. - * @irq - irq number of attach/detach event (0 if not exist). - * @handling_delay - interrupt handler will schedule extcon event - * handling at handling_delay jiffies. - * @handler - extcon event handler called by interrupt handler. - * @chan - iio channel being queried. + * @edev: extcon device. + * @cable_names: list of supported cables. + * @num_cables: size of cable_names. + * @adc_conditions: list of adc value conditions. + * @num_conditions: size of adc_conditions. + * @irq: irq number of attach/detach event (0 if not exist). + * @handling_delay: interrupt handler will schedule extcon event + * handling at handling_delay jiffies. + * @handler: extcon event handler called by interrupt handler. + * @chan: iio channel being queried. */ struct adc_jack_data { struct extcon_dev edev; @@ -64,7 +64,7 @@ static void adc_jack_handler(struct work_struct *work) ret = iio_read_channel_raw(data->chan, &adc_val); if (ret < 0) { - dev_err(data->edev.dev, "read channel() error: %d\n", ret); + dev_err(&data->edev.dev, "read channel() error: %d\n", ret); return; } @@ -95,7 +95,7 @@ static irqreturn_t adc_jack_irq_thread(int irq, void *_data) static int adc_jack_probe(struct platform_device *pdev) { struct adc_jack_data *data; - struct adc_jack_pdata *pdata = pdev->dev.platform_data; + struct adc_jack_pdata *pdata = dev_get_platdata(&pdev->dev); int i, err = 0; data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); @@ -110,6 +110,7 @@ static int adc_jack_probe(struct platform_device *pdev) goto out; } + data->edev.dev.parent = &pdev->dev; data->edev.supported_cable = pdata->cable_names; /* Check the length of array and set num_cables */ @@ -148,7 +149,7 @@ static int adc_jack_probe(struct platform_device *pdev) platform_set_drvdata(pdev, data); - err = extcon_dev_register(&data->edev, &pdev->dev); + err = extcon_dev_register(&data->edev); if (err) goto out; diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index e55713083c78..3c55ec856e39 100644 --- a/drivers/extcon/extcon-arizona.c +++ b/drivers/extcon/extcon-arizona.c @@ -86,8 +86,8 @@ struct arizona_extcon_info { }; static const struct arizona_micd_config micd_default_modes[] = { - { ARIZONA_ACCDET_SRC, 1 << ARIZONA_MICD_BIAS_SRC_SHIFT, 0 }, - { 0, 2 << ARIZONA_MICD_BIAS_SRC_SHIFT, 1 }, + { ARIZONA_ACCDET_SRC, 1, 0 }, + { 0, 2, 1 }, }; static const struct arizona_micd_range micd_default_ranges[] = { @@ -182,7 +182,8 @@ static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode) info->micd_modes[mode].gpio); regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1, ARIZONA_MICD_BIAS_SRC_MASK, - info->micd_modes[mode].bias); + info->micd_modes[mode].bias << + ARIZONA_MICD_BIAS_SRC_SHIFT); regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1, ARIZONA_ACCDET_SRC, info->micd_modes[mode].src); @@ -193,7 +194,7 @@ static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode) static const char *arizona_extcon_get_micbias(struct arizona_extcon_info *info) { - switch (info->micd_modes[0].bias >> ARIZONA_MICD_BIAS_SRC_SHIFT) { + switch (info->micd_modes[0].bias) { case 1: return "MICBIAS1"; case 2: @@ -388,7 +389,7 @@ static int arizona_hpdet_read(struct arizona_extcon_info *info) >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT; if (range < ARRAY_SIZE(arizona_hpdet_b_ranges) - 1 && - (val < 100 || val > 0x3fb)) { + (val < 100 || val >= 0x3fb)) { range++; dev_dbg(arizona->dev, "Moving to HPDET range %d\n", range); @@ -401,7 +402,7 @@ static int arizona_hpdet_read(struct arizona_extcon_info *info) } /* If we go out of range report top of range */ - if (val < 100 || val > 0x3fb) { + if (val < 100 || val >= 0x3fb) { dev_dbg(arizona->dev, "Measurement out of range\n"); return ARIZONA_HPDET_MAX; } @@ -514,7 +515,7 @@ static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading, } /* - * If we measure the mic as + * If we measure the mic as high impedance */ if (!id_gpio || info->hpdet_res[1] > 50) { dev_dbg(arizona->dev, "Detected mic\n"); @@ -564,11 +565,10 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data) } ret = arizona_hpdet_read(info); - if (ret == -EAGAIN) { + if (ret == -EAGAIN) goto out; - } else if (ret < 0) { + else if (ret < 0) goto done; - } reading = ret; /* Reset back to starting range */ @@ -578,11 +578,10 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data) 0); ret = arizona_hpdet_do_id(info, &reading, &mic); - if (ret == -EAGAIN) { + if (ret == -EAGAIN) goto out; - } else if (ret < 0) { + else if (ret < 0) goto done; - } /* Report high impedence cables as line outputs */ if (reading >= 5000) @@ -738,8 +737,8 @@ err: static void arizona_micd_timeout_work(struct work_struct *work) { struct arizona_extcon_info *info = container_of(work, - struct arizona_extcon_info, - micd_timeout_work.work); + struct arizona_extcon_info, + micd_timeout_work.work); mutex_lock(&info->lock); @@ -756,8 +755,8 @@ static void arizona_micd_timeout_work(struct work_struct *work) static void arizona_micd_detect(struct work_struct *work) { struct arizona_extcon_info *info = container_of(work, - struct arizona_extcon_info, - micd_detect_work.work); + struct arizona_extcon_info, + micd_detect_work.work); struct arizona *arizona = info->arizona; unsigned int val = 0, lvl; int ret, i, key; @@ -769,7 +768,8 @@ static void arizona_micd_detect(struct work_struct *work) for (i = 0; i < 10 && !(val & 0x7fc); i++) { ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val); if (ret != 0) { - dev_err(arizona->dev, "Failed to read MICDET: %d\n", ret); + dev_err(arizona->dev, + "Failed to read MICDET: %d\n", ret); mutex_unlock(&info->lock); return; } @@ -777,7 +777,8 @@ static void arizona_micd_detect(struct work_struct *work) dev_dbg(arizona->dev, "MICDET: %x\n", val); if (!(val & ARIZONA_MICD_VALID)) { - dev_warn(arizona->dev, "Microphone detection state invalid\n"); + dev_warn(arizona->dev, + "Microphone detection state invalid\n"); mutex_unlock(&info->lock); return; } @@ -925,8 +926,8 @@ static irqreturn_t arizona_micdet(int irq, void *data) static void arizona_hpdet_work(struct work_struct *work) { struct arizona_extcon_info *info = container_of(work, - struct arizona_extcon_info, - hpdet_work.work); + struct arizona_extcon_info, + hpdet_work.work); mutex_lock(&info->lock); arizona_start_hpdet_acc_id(info); @@ -973,10 +974,13 @@ static irqreturn_t arizona_jackdet(int irq, void *data) &info->hpdet_work, msecs_to_jiffies(HPDET_DEBOUNCE)); - if (cancelled_mic) + if (cancelled_mic) { + int micd_timeout = info->micd_timeout; + queue_delayed_work(system_power_efficient_wq, &info->micd_timeout_work, - msecs_to_jiffies(info->micd_timeout)); + msecs_to_jiffies(micd_timeout)); + } goto out; } @@ -1039,6 +1043,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data) else info->micd_timeout = DEFAULT_MICD_TIMEOUT; +out: /* Clear trig_sts to make sure DCVDD is not forced up */ regmap_write(arizona->regmap, ARIZONA_AOD_WKUP_AND_TRIG, ARIZONA_MICD_CLAMP_FALL_TRIG_STS | @@ -1046,7 +1051,6 @@ static irqreturn_t arizona_jackdet(int irq, void *data) ARIZONA_JD1_FALL_TRIG_STS | ARIZONA_JD1_RISE_TRIG_STS); -out: mutex_unlock(&info->lock); pm_runtime_mark_last_busy(info->dev); @@ -1129,9 +1133,10 @@ static int arizona_extcon_probe(struct platform_device *pdev) } info->edev.name = "Headset Jack"; + info->edev.dev.parent = arizona->dev; info->edev.supported_cable = arizona_cable; - ret = extcon_dev_register(&info->edev, arizona->dev); + ret = extcon_dev_register(&info->edev); if (ret < 0) { dev_err(arizona->dev, "extcon_dev_register() failed: %d\n", ret); diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 148382faded9..15443d3b6be1 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -74,7 +74,7 @@ static DEFINE_MUTEX(extcon_dev_list_lock); /** * check_mutually_exclusive - Check if new_state violates mutually_exclusive - * condition. + * condition. * @edev: the extcon device * @new_state: new cable attach status for @edev * @@ -105,7 +105,7 @@ static ssize_t state_show(struct device *dev, struct device_attribute *attr, char *buf) { int i, count = 0; - struct extcon_dev *edev = (struct extcon_dev *) dev_get_drvdata(dev); + struct extcon_dev *edev = dev_get_drvdata(dev); if (edev->print_state) { int ret = edev->print_state(edev, buf); @@ -129,13 +129,12 @@ static ssize_t state_show(struct device *dev, struct device_attribute *attr, return count; } -int extcon_set_state(struct extcon_dev *edev, u32 state); static ssize_t state_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { u32 state; ssize_t ret = 0; - struct extcon_dev *edev = (struct extcon_dev *) dev_get_drvdata(dev); + struct extcon_dev *edev = dev_get_drvdata(dev); ret = sscanf(buf, "0x%x", &state); if (ret == 0) @@ -153,7 +152,7 @@ static DEVICE_ATTR_RW(state); static ssize_t name_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct extcon_dev *edev = (struct extcon_dev *) dev_get_drvdata(dev); + struct extcon_dev *edev = dev_get_drvdata(dev); /* Optional callback given by the user */ if (edev->print_name) { @@ -162,7 +161,7 @@ static ssize_t name_show(struct device *dev, struct device_attribute *attr, return ret; } - return sprintf(buf, "%s\n", dev_name(edev->dev)); + return sprintf(buf, "%s\n", dev_name(&edev->dev)); } static DEVICE_ATTR_RO(name); @@ -189,7 +188,7 @@ static ssize_t cable_state_show(struct device *dev, /** * extcon_update_state() - Update the cable attach states of the extcon device - * only for the masked bits. + * only for the masked bits. * @edev: the extcon device * @mask: the bit mask to designate updated bits. * @state: new cable attach status for @edev @@ -227,11 +226,10 @@ int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state) edev->state |= state & mask; raw_notifier_call_chain(&edev->nh, old_state, edev); - /* This could be in interrupt handler */ prop_buf = (char *)get_zeroed_page(GFP_ATOMIC); if (prop_buf) { - length = name_show(edev->dev, NULL, prop_buf); + length = name_show(&edev->dev, NULL, prop_buf); if (length > 0) { if (prop_buf[length - 1] == '\n') prop_buf[length - 1] = 0; @@ -239,7 +237,7 @@ int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state) "NAME=%s", prop_buf); envp[env_offset++] = name_buf; } - length = state_show(edev->dev, NULL, prop_buf); + length = state_show(&edev->dev, NULL, prop_buf); if (length > 0) { if (prop_buf[length - 1] == '\n') prop_buf[length - 1] = 0; @@ -251,14 +249,14 @@ int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state) /* Unlock early before uevent */ spin_unlock_irqrestore(&edev->lock, flags); - kobject_uevent_env(&edev->dev->kobj, KOBJ_CHANGE, envp); + kobject_uevent_env(&edev->dev.kobj, KOBJ_CHANGE, envp); free_page((unsigned long)prop_buf); } else { /* Unlock early before uevent */ spin_unlock_irqrestore(&edev->lock, flags); - dev_err(edev->dev, "out of memory in extcon_set_state\n"); - kobject_uevent(&edev->dev->kobj, KOBJ_CHANGE); + dev_err(&edev->dev, "out of memory in extcon_set_state\n"); + kobject_uevent(&edev->dev.kobj, KOBJ_CHANGE); } } else { /* No changes */ @@ -339,8 +337,9 @@ EXPORT_SYMBOL_GPL(extcon_get_cable_state); /** * extcon_set_cable_state_() - Set the status of a specific cable. - * @edev: the extcon device that has the cable. - * @index: cable index that can be retrieved by extcon_find_cable_index(). + * @edev: the extcon device that has the cable. + * @index: cable index that can be retrieved by + * extcon_find_cable_index(). * @cable_state: the new cable status. The default semantics is * true: attached / false: detached. */ @@ -359,8 +358,8 @@ EXPORT_SYMBOL_GPL(extcon_set_cable_state_); /** * extcon_set_cable_state() - Set the status of a specific cable. - * @edev: the extcon device that has the cable. - * @cable_name: cable name. + * @edev: the extcon device that has the cable. + * @cable_name: cable name. * @cable_state: the new cable status. The default semantics is * true: attached / false: detached. * @@ -419,14 +418,14 @@ static int _call_per_cable(struct notifier_block *nb, unsigned long val, /** * extcon_register_interest() - Register a notifier for a state change of a - * specific cable, not an entier set of cables of a - * extcon device. - * @obj: an empty extcon_specific_cable_nb object to be returned. + * specific cable, not an entier set of cables of a + * extcon device. + * @obj: an empty extcon_specific_cable_nb object to be returned. * @extcon_name: the name of extcon device. * if NULL, extcon_register_interest will register * every cable with the target cable_name given. * @cable_name: the target cable name. - * @nb: the notifier block to get notified. + * @nb: the notifier block to get notified. * * Provide an empty extcon_specific_cable_nb. extcon_register_interest() sets * the struct for you. @@ -452,7 +451,8 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj, if (!obj->edev) return -ENODEV; - obj->cable_index = extcon_find_cable_index(obj->edev, cable_name); + obj->cable_index = extcon_find_cable_index(obj->edev, + cable_name); if (obj->cable_index < 0) return obj->cable_index; @@ -460,7 +460,8 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj, obj->internal_nb.notifier_call = _call_per_cable; - return raw_notifier_chain_register(&obj->edev->nh, &obj->internal_nb); + return raw_notifier_chain_register(&obj->edev->nh, + &obj->internal_nb); } else { struct class_dev_iter iter; struct extcon_dev *extd; @@ -470,7 +471,7 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj, return -ENODEV; class_dev_iter_init(&iter, extcon_class, NULL, NULL); while ((dev = class_dev_iter_next(&iter))) { - extd = (struct extcon_dev *)dev_get_drvdata(dev); + extd = dev_get_drvdata(dev); if (extcon_find_cable_index(extd, cable_name) < 0) continue; @@ -487,7 +488,7 @@ EXPORT_SYMBOL_GPL(extcon_register_interest); /** * extcon_unregister_interest() - Unregister the notifier registered by - * extcon_register_interest(). + * extcon_register_interest(). * @obj: the extcon_specific_cable_nb object returned by * extcon_register_interest(). */ @@ -502,7 +503,7 @@ EXPORT_SYMBOL_GPL(extcon_unregister_interest); /** * extcon_register_notifier() - Register a notifiee to get notified by - * any attach status changes from the extcon. + * any attach status changes from the extcon. * @edev: the extcon device. * @nb: a notifier block to be registered. * @@ -556,7 +557,6 @@ static int create_extcon_class(void) static void extcon_dev_release(struct device *dev) { - kfree(dev); } static const char *muex_name = "mutually_exclusive"; @@ -567,14 +567,13 @@ static void dummy_sysfs_dev_release(struct device *dev) /** * extcon_dev_register() - Register a new extcon device * @edev : the new extcon device (should be allocated before calling) - * @dev : the parent device for this extcon device. * * Among the members of edev struct, please set the "user initializing data" * in any case and set the "optional callbacks" if required. However, please * do not set the values of "internal data", which are initialized by * this function. */ -int extcon_dev_register(struct extcon_dev *edev, struct device *dev) +int extcon_dev_register(struct extcon_dev *edev) { int ret, index = 0; @@ -594,19 +593,20 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev) } if (index > SUPPORTED_CABLE_MAX) { - dev_err(edev->dev, "extcon: maximum number of supported cables exceeded.\n"); + dev_err(&edev->dev, "extcon: maximum number of supported cables exceeded.\n"); return -EINVAL; } - edev->dev = kzalloc(sizeof(struct device), GFP_KERNEL); - if (!edev->dev) - return -ENOMEM; - edev->dev->parent = dev; - edev->dev->class = extcon_class; - edev->dev->release = extcon_dev_release; + edev->dev.class = extcon_class; + edev->dev.release = extcon_dev_release; - edev->name = edev->name ? edev->name : dev_name(dev); - dev_set_name(edev->dev, "%s", edev->name); + edev->name = edev->name ? edev->name : dev_name(edev->dev.parent); + if (IS_ERR_OR_NULL(edev->name)) { + dev_err(&edev->dev, + "extcon device name is null\n"); + return -EINVAL; + } + dev_set_name(&edev->dev, "%s", edev->name); if (edev->max_supported) { char buf[10]; @@ -714,7 +714,7 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev) goto err_alloc_groups; } - edev->extcon_dev_type.name = dev_name(edev->dev); + edev->extcon_dev_type.name = dev_name(&edev->dev); edev->extcon_dev_type.release = dummy_sysfs_dev_release; for (index = 0; index < edev->max_supported; index++) @@ -724,25 +724,24 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev) edev->extcon_dev_type.groups[index] = &edev->attr_g_muex; - edev->dev->type = &edev->extcon_dev_type; + edev->dev.type = &edev->extcon_dev_type; } - ret = device_register(edev->dev); + ret = device_register(&edev->dev); if (ret) { - put_device(edev->dev); + put_device(&edev->dev); goto err_dev; } #if defined(CONFIG_ANDROID) if (switch_class) - ret = class_compat_create_link(switch_class, edev->dev, - NULL); + ret = class_compat_create_link(switch_class, &edev->dev, NULL); #endif /* CONFIG_ANDROID */ spin_lock_init(&edev->lock); RAW_INIT_NOTIFIER_HEAD(&edev->nh); - dev_set_drvdata(edev->dev, edev); + dev_set_drvdata(&edev->dev, edev); edev->state = 0; mutex_lock(&extcon_dev_list_lock); @@ -768,7 +767,6 @@ err_alloc_cables: if (edev->max_supported) kfree(edev->cables); err_sysfs_alloc: - kfree(edev->dev); return ret; } EXPORT_SYMBOL_GPL(extcon_dev_register); @@ -788,9 +786,9 @@ void extcon_dev_unregister(struct extcon_dev *edev) list_del(&edev->entry); mutex_unlock(&extcon_dev_list_lock); - if (IS_ERR_OR_NULL(get_device(edev->dev))) { - dev_err(edev->dev, "Failed to unregister extcon_dev (%s)\n", - dev_name(edev->dev)); + if (IS_ERR_OR_NULL(get_device(&edev->dev))) { + dev_err(&edev->dev, "Failed to unregister extcon_dev (%s)\n", + dev_name(&edev->dev)); return; } @@ -812,10 +810,10 @@ void extcon_dev_unregister(struct extcon_dev *edev) #if defined(CONFIG_ANDROID) if (switch_class) - class_compat_remove_link(switch_class, edev->dev, NULL); + class_compat_remove_link(switch_class, &edev->dev, NULL); #endif - device_unregister(edev->dev); - put_device(edev->dev); + device_unregister(&edev->dev); + put_device(&edev->dev); } EXPORT_SYMBOL_GPL(extcon_dev_unregister); diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c index f874c30ddbff..7e0dff58e494 100644 --- a/drivers/extcon/extcon-gpio.c +++ b/drivers/extcon/extcon-gpio.c @@ -34,6 +34,7 @@ struct gpio_extcon_data { struct extcon_dev edev; unsigned gpio; + bool gpio_active_low; const char *state_on; const char *state_off; int irq; @@ -49,6 +50,8 @@ static void gpio_extcon_work(struct work_struct *work) work); state = gpio_get_value(data->gpio); + if (data->gpio_active_low) + state = !state; extcon_set_state(&data->edev, state); } @@ -78,9 +81,9 @@ static ssize_t extcon_gpio_print_state(struct extcon_dev *edev, char *buf) static int gpio_extcon_probe(struct platform_device *pdev) { - struct gpio_extcon_platform_data *pdata = pdev->dev.platform_data; + struct gpio_extcon_platform_data *pdata = dev_get_platdata(&pdev->dev); struct gpio_extcon_data *extcon_data; - int ret = 0; + int ret; if (!pdata) return -EBUSY; @@ -95,14 +98,22 @@ static int gpio_extcon_probe(struct platform_device *pdev) return -ENOMEM; extcon_data->edev.name = pdata->name; + extcon_data->edev.dev.parent = &pdev->dev; extcon_data->gpio = pdata->gpio; + extcon_data->gpio_active_low = pdata->gpio_active_low; extcon_data->state_on = pdata->state_on; extcon_data->state_off = pdata->state_off; if (pdata->state_on && pdata->state_off) extcon_data->edev.print_state = extcon_gpio_print_state; - extcon_data->debounce_jiffies = msecs_to_jiffies(pdata->debounce); + if (pdata->debounce) { + ret = gpio_set_debounce(extcon_data->gpio, + pdata->debounce * 1000); + if (ret < 0) + extcon_data->debounce_jiffies = + msecs_to_jiffies(pdata->debounce); + } - ret = extcon_dev_register(&extcon_data->edev, &pdev->dev); + ret = extcon_dev_register(&extcon_data->edev); if (ret < 0) return ret; diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index b56bdaa27d4b..da268fbc901b 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -189,14 +189,17 @@ enum max77693_muic_acc_type { /* The below accessories have same ADC value so ADCLow and ADC1K bit is used to separate specific accessory */ - MAX77693_MUIC_GND_USB_OTG = 0x100, /* ADC:0x0, VBVolot:0, ADCLow:0, ADC1K:0 */ - MAX77693_MUIC_GND_USB_OTG_VB = 0x104, /* ADC:0x0, VBVolot:1, ADCLow:0, ADC1K:0 */ - MAX77693_MUIC_GND_AV_CABLE_LOAD = 0x102,/* ADC:0x0, VBVolot:0, ADCLow:1, ADC1K:0 */ - MAX77693_MUIC_GND_MHL = 0x103, /* ADC:0x0, VBVolot:0, ADCLow:1, ADC1K:1 */ - MAX77693_MUIC_GND_MHL_VB = 0x107, /* ADC:0x0, VBVolot:1, ADCLow:1, ADC1K:1 */ + /* ADC|VBVolot|ADCLow|ADC1K| */ + MAX77693_MUIC_GND_USB_OTG = 0x100, /* 0x0| 0| 0| 0| */ + MAX77693_MUIC_GND_USB_OTG_VB = 0x104, /* 0x0| 1| 0| 0| */ + MAX77693_MUIC_GND_AV_CABLE_LOAD = 0x102,/* 0x0| 0| 1| 0| */ + MAX77693_MUIC_GND_MHL = 0x103, /* 0x0| 0| 1| 1| */ + MAX77693_MUIC_GND_MHL_VB = 0x107, /* 0x0| 1| 1| 1| */ }; -/* MAX77693 MUIC device support below list of accessories(external connector) */ +/* + * MAX77693 MUIC device support below list of accessories(external connector) + */ enum { EXTCON_CABLE_USB = 0, EXTCON_CABLE_USB_HOST, @@ -395,12 +398,12 @@ static int max77693_muic_get_cable_type(struct max77693_muic_info *info, vbvolt >>= STATUS2_VBVOLT_SHIFT; /** - * [0x1][VBVolt][ADCLow][ADC1K] - * [0x1 0 0 0 ] : USB_OTG - * [0x1 1 0 0 ] : USB_OTG_VB - * [0x1 0 1 0 ] : Audio Video Cable with load - * [0x1 0 1 1 ] : MHL without charging connector - * [0x1 1 1 1 ] : MHL with charging connector + * [0x1|VBVolt|ADCLow|ADC1K] + * [0x1| 0| 0| 0] USB_OTG + * [0x1| 1| 0| 0] USB_OTG_VB + * [0x1| 0| 1| 0] Audio Video cable with load + * [0x1| 0| 1| 1] MHL without charging cable + * [0x1| 1| 1| 1] MHL with charging cable */ cable_type = ((0x1 << 8) | (vbvolt << 2) @@ -723,11 +726,11 @@ static int max77693_muic_adc_handler(struct max77693_muic_info *info) if (ret < 0) return ret; break; - case MAX77693_MUIC_ADC_REMOTE_S3_BUTTON: /* DOCK_KEY_PREV */ - case MAX77693_MUIC_ADC_REMOTE_S7_BUTTON: /* DOCK_KEY_NEXT */ - case MAX77693_MUIC_ADC_REMOTE_S9_BUTTON: /* DOCK_VOL_DOWN */ - case MAX77693_MUIC_ADC_REMOTE_S10_BUTTON: /* DOCK_VOL_UP */ - case MAX77693_MUIC_ADC_REMOTE_S12_BUTTON: /* DOCK_KEY_PLAY_PAUSE */ + case MAX77693_MUIC_ADC_REMOTE_S3_BUTTON: /* DOCK_KEY_PREV */ + case MAX77693_MUIC_ADC_REMOTE_S7_BUTTON: /* DOCK_KEY_NEXT */ + case MAX77693_MUIC_ADC_REMOTE_S9_BUTTON: /* DOCK_VOL_DOWN */ + case MAX77693_MUIC_ADC_REMOTE_S10_BUTTON: /* DOCK_VOL_UP */ + case MAX77693_MUIC_ADC_REMOTE_S12_BUTTON: /* DOCK_KEY_PLAY_PAUSE */ /* * Button of DOCK device * - the Prev/Next/Volume Up/Volume Down/Play-Pause button @@ -815,19 +818,21 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info) case MAX77693_MUIC_GND_MHL_VB: /* * MHL cable with MHL_TA(USB/TA) cable - * - MHL cable include two port(HDMI line and separate micro- - * usb port. When the target connect MHL cable, extcon driver - * check whether MHL_TA(USB/TA) cable is connected. If MHL_TA - * cable is connected, extcon driver notify state to notifiee - * for charging battery. + * - MHL cable include two port(HDMI line and separate + * micro-usb port. When the target connect MHL cable, + * extcon driver check whether MHL_TA(USB/TA) cable is + * connected. If MHL_TA cable is connected, extcon + * driver notify state to notifiee for charging battery. * * Features of 'MHL_TA(USB/TA) with MHL cable' * - Support MHL - * - Support charging through micro-usb port without data connection + * - Support charging through micro-usb port without + * data connection */ extcon_set_cable_state(info->edev, "MHL_TA", attached); if (!cable_attached) - extcon_set_cable_state(info->edev, "MHL", cable_attached); + extcon_set_cable_state(info->edev, + "MHL", cable_attached); break; } @@ -839,47 +844,51 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info) case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD: /* Dock-Audio */ /* * Dock-Audio device with USB/TA cable - * - Dock device include two port(Dock-Audio and micro-usb - * port). When the target connect Dock-Audio device, extcon - * driver check whether USB/TA cable is connected. If USB/TA - * cable is connected, extcon driver notify state to notifiee - * for charging battery. + * - Dock device include two port(Dock-Audio and micro- + * usb port). When the target connect Dock-Audio device, + * extcon driver check whether USB/TA cable is connected + * or not. If USB/TA cable is connected, extcon driver + * notify state to notifiee for charging battery. * * Features of 'USB/TA cable with Dock-Audio device' * - Support external output feature of audio. - * - Support charging through micro-usb port without data - * connection. + * - Support charging through micro-usb port without + * data connection. */ extcon_set_cable_state(info->edev, "USB", attached); if (!cable_attached) - extcon_set_cable_state(info->edev, "Dock-Audio", cable_attached); + extcon_set_cable_state(info->edev, "Dock-Audio", + cable_attached); break; case MAX77693_MUIC_ADC_RESERVED_ACC_3: /* Dock-Smart */ /* * Dock-Smart device with USB/TA cable * - Dock-Desk device include three type of cable which * are HDMI, USB for mouse/keyboard and micro-usb port - * for USB/TA cable. Dock-Smart device need always exteranl - * power supply(USB/TA cable through micro-usb cable). Dock- - * Smart device support screen output of target to separate - * monitor and mouse/keyboard for desktop mode. + * for USB/TA cable. Dock-Smart device need always + * exteranl power supply(USB/TA cable through micro-usb + * cable). Dock-Smart device support screen output of + * target to separate monitor and mouse/keyboard for + * desktop mode. * * Features of 'USB/TA cable with Dock-Smart device' * - Support MHL * - Support external output feature of audio - * - Support charging through micro-usb port without data - * connection if TA cable is connected to target. - * - Support charging and data connection through micro-usb port - * if USB cable is connected between target and host - * device. + * - Support charging through micro-usb port without + * data connection if TA cable is connected to target. + * - Support charging and data connection through micro- + * usb port if USB cable is connected between target + * and host device * - Support OTG device (Mouse/Keyboard) */ - ret = max77693_muic_set_path(info, info->path_usb, attached); + ret = max77693_muic_set_path(info, info->path_usb, + attached); if (ret < 0) return ret; - extcon_set_cable_state(info->edev, "Dock-Smart", attached); + extcon_set_cable_state(info->edev, "Dock-Smart", + attached); extcon_set_cable_state(info->edev, "MHL", attached); break; @@ -889,25 +898,28 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info) switch (chg_type) { case MAX77693_CHARGER_TYPE_NONE: /* - * When MHL(with USB/TA cable) or Dock-Audio with USB/TA cable - * is attached, muic device happen below two interrupt. - * - 'MAX77693_MUIC_IRQ_INT1_ADC' for detecting MHL/Dock-Audio. - * - 'MAX77693_MUIC_IRQ_INT2_CHGTYP' for detecting USB/TA cable - * connected to MHL or Dock-Audio. - * Always, happen eariler MAX77693_MUIC_IRQ_INT1_ADC interrupt - * than MAX77693_MUIC_IRQ_INT2_CHGTYP interrupt. + * When MHL(with USB/TA cable) or Dock-Audio with USB/TA + * cable is attached, muic device happen below two irq. + * - 'MAX77693_MUIC_IRQ_INT1_ADC' for detecting + * MHL/Dock-Audio. + * - 'MAX77693_MUIC_IRQ_INT2_CHGTYP' for detecting + * USB/TA cable connected to MHL or Dock-Audio. + * Always, happen eariler MAX77693_MUIC_IRQ_INT1_ADC + * irq than MAX77693_MUIC_IRQ_INT2_CHGTYP irq. * - * If user attach MHL (with USB/TA cable and immediately detach - * MHL with USB/TA cable before MAX77693_MUIC_IRQ_INT2_CHGTYP - * interrupt is happened, USB/TA cable remain connected state to - * target. But USB/TA cable isn't connected to target. The user - * be face with unusual action. So, driver should check this - * situation in spite of, that previous charger type is N/A. + * If user attach MHL (with USB/TA cable and immediately + * detach MHL with USB/TA cable before MAX77693_MUIC_IRQ + * _INT2_CHGTYP irq is happened, USB/TA cable remain + * connected state to target. But USB/TA cable isn't + * connected to target. The user be face with unusual + * action. So, driver should check this situation in + * spite of, that previous charger type is N/A. */ break; case MAX77693_CHARGER_TYPE_USB: /* Only USB cable, PATH:AP_USB */ - ret = max77693_muic_set_path(info, info->path_usb, attached); + ret = max77693_muic_set_path(info, info->path_usb, + attached); if (ret < 0) return ret; @@ -953,7 +965,7 @@ static void max77693_muic_irq_work(struct work_struct *work) mutex_lock(&info->mutex); - for (i = 0 ; i < ARRAY_SIZE(muic_irqs) ; i++) + for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) if (info->irq == muic_irqs[i].virq) irq_type = muic_irqs[i].irq; @@ -1171,8 +1183,9 @@ static int max77693_muic_probe(struct platform_device *pdev) goto err_irq; } info->edev->name = DEV_NAME; + info->edev->dev.parent = &pdev->dev; info->edev->supported_cable = max77693_extcon_cable; - ret = extcon_dev_register(info->edev, NULL); + ret = extcon_dev_register(info->edev); if (ret) { dev_err(&pdev->dev, "failed to register extcon device\n"); goto err_irq; @@ -1188,7 +1201,7 @@ static int max77693_muic_probe(struct platform_device *pdev) num_init_data = ARRAY_SIZE(default_init_data); } - for (i = 0 ; i < num_init_data ; i++) { + for (i = 0; i < num_init_data; i++) { enum max77693_irq_source irq_src = MAX77693_IRQ_GROUP_NR; @@ -1214,7 +1227,8 @@ static int max77693_muic_probe(struct platform_device *pdev) } if (pdata->muic_data) { - struct max77693_muic_platform_data *muic_pdata = pdata->muic_data; + struct max77693_muic_platform_data *muic_pdata + = pdata->muic_data; /* * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c index 67d6738d85a0..6a00464658c5 100644 --- a/drivers/extcon/extcon-max8997.c +++ b/drivers/extcon/extcon-max8997.c @@ -426,7 +426,8 @@ static int max8997_muic_adc_handler(struct max8997_muic_info *info) break; case MAX8997_MUIC_ADC_FACTORY_MODE_USB_OFF: case MAX8997_MUIC_ADC_FACTORY_MODE_USB_ON: - ret = max8997_muic_handle_usb(info, MAX8997_USB_DEVICE, attached); + ret = max8997_muic_handle_usb(info, + MAX8997_USB_DEVICE, attached); if (ret < 0) return ret; break; @@ -504,7 +505,8 @@ static int max8997_muic_chg_handler(struct max8997_muic_info *info) } break; case MAX8997_CHARGER_TYPE_DOWNSTREAM_PORT: - extcon_set_cable_state(info->edev, "Charge-downstream", attached); + extcon_set_cable_state(info->edev, + "Charge-downstream", attached); break; case MAX8997_CHARGER_TYPE_DEDICATED_CHG: extcon_set_cable_state(info->edev, "TA", attached); @@ -537,7 +539,7 @@ static void max8997_muic_irq_work(struct work_struct *work) mutex_lock(&info->mutex); - for (i = 0 ; i < ARRAY_SIZE(muic_irqs) ; i++) + for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) if (info->irq == muic_irqs[i].virq) irq_type = muic_irqs[i].irq; @@ -705,8 +707,9 @@ static int max8997_muic_probe(struct platform_device *pdev) goto err_irq; } info->edev->name = DEV_NAME; + info->edev->dev.parent = &pdev->dev; info->edev->supported_cable = max8997_extcon_cable; - ret = extcon_dev_register(info->edev, NULL); + ret = extcon_dev_register(info->edev); if (ret) { dev_err(&pdev->dev, "failed to register extcon device\n"); goto err_irq; diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c index 89fdd05c5fd6..6c91976dd823 100644 --- a/drivers/extcon/extcon-palmas.c +++ b/drivers/extcon/extcon-palmas.c @@ -135,7 +135,7 @@ static void palmas_enable_irq(struct palmas_usb *palmas_usb) static int palmas_usb_probe(struct platform_device *pdev) { struct palmas *palmas = dev_get_drvdata(pdev->dev.parent); - struct palmas_usb_platform_data *pdata = pdev->dev.platform_data; + struct palmas_usb_platform_data *pdata = dev_get_platdata(&pdev->dev); struct device_node *node = pdev->dev.of_node; struct palmas_usb *palmas_usb; int status; @@ -178,9 +178,10 @@ static int palmas_usb_probe(struct platform_device *pdev) platform_set_drvdata(pdev, palmas_usb); palmas_usb->edev.supported_cable = palmas_extcon_cable; + palmas_usb->edev.dev.parent = palmas_usb->dev; palmas_usb->edev.mutually_exclusive = mutually_exclusive; - status = extcon_dev_register(&palmas_usb->edev, palmas_usb->dev); + status = extcon_dev_register(&palmas_usb->edev); if (status) { dev_err(&pdev->dev, "failed to register extcon device\n"); return status; diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c index 2d9ca6055e5e..41b5913ddabe 100644 --- a/drivers/gpio/gpio-lynxpoint.c +++ b/drivers/gpio/gpio-lynxpoint.c @@ -248,14 +248,15 @@ static void lp_gpio_irq_handler(unsigned irq, struct irq_desc *desc) struct lp_gpio *lg = irq_data_get_irq_handler_data(data); struct irq_chip *chip = irq_data_get_irq_chip(data); u32 base, pin, mask; - unsigned long reg, pending; + unsigned long reg, ena, pending; unsigned virq; /* check from GPIO controller which pin triggered the interrupt */ for (base = 0; base < lg->chip.ngpio; base += 32) { reg = lp_gpio_reg(&lg->chip, base, LP_INT_STAT); + ena = lp_gpio_reg(&lg->chip, base, LP_INT_ENABLE); - while ((pending = inl(reg))) { + while ((pending = (inl(reg) & inl(ena)))) { pin = __ffs(pending); mask = BIT(pin); /* Clear before handling so we don't lose an edge */ diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 86ef3461ec06..dadbac277267 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -136,7 +136,7 @@ static struct gpio_desc *gpio_to_desc(unsigned gpio) */ static int desc_to_gpio(const struct gpio_desc *desc) { - return desc->chip->base + gpio_chip_hwgpio(desc); + return desc - &gpio_desc[0]; } @@ -408,7 +408,7 @@ static int gpio_setup_irq(struct gpio_desc *desc, struct device *dev, IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING; if (!value_sd) { - value_sd = sysfs_get_dirent(dev->kobj.sd, NULL, "value"); + value_sd = sysfs_get_dirent(dev->kobj.sd, "value"); if (!value_sd) { ret = -ENODEV; goto err_out; @@ -1398,7 +1398,7 @@ static int gpiod_request(struct gpio_desc *desc, const char *label) int status = -EPROBE_DEFER; unsigned long flags; - if (!desc || !desc->chip) { + if (!desc) { pr_warn("%s: invalid GPIO\n", __func__); return -EINVAL; } @@ -1406,6 +1406,8 @@ static int gpiod_request(struct gpio_desc *desc, const char *label) spin_lock_irqsave(&gpio_lock, flags); chip = desc->chip; + if (chip == NULL) + goto done; if (!try_module_get(chip->owner)) goto done; diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index e572dd20bdee..fe58d0833a11 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -61,7 +61,7 @@ static int drm_version(struct drm_device *dev, void *data, /** Ioctl table */ static const struct drm_ioctl_desc drm_ioctls[] = { - DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, DRM_UNLOCKED), + DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, DRM_UNLOCKED|DRM_RENDER_ALLOW), DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0), DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0), DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY), @@ -402,9 +402,16 @@ long drm_ioctl(struct file *filp, cmd = ioctl->cmd_drv; } else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) { + u32 drv_size; + ioctl = &drm_ioctls[nr]; - cmd = ioctl->cmd; + + drv_size = _IOC_SIZE(ioctl->cmd); usize = asize = _IOC_SIZE(cmd); + if (drv_size > asize) + asize = drv_size; + + cmd = ioctl->cmd; } else goto err_i1; diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 1688ff500513..830f7501cb4d 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -2925,6 +2925,8 @@ int drm_edid_to_speaker_allocation(struct edid *edid, u8 **sadb) /* Speaker Allocation Data Block */ if (dbl == 3) { *sadb = kmalloc(dbl, GFP_KERNEL); + if (!*sadb) + return -ENOMEM; memcpy(*sadb, &db[1], dbl); count = dbl; break; diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index f6f6cc7fc133..3d13ca6e257f 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -416,14 +416,6 @@ static void drm_fb_helper_dpms(struct fb_info *info, int dpms_mode) return; /* - * fbdev->blank can be called from irq context in case of a panic. - * Since we already have our own special panic handler which will - * restore the fbdev console mode completely, just bail out early. - */ - if (oops_in_progress) - return; - - /* * For each CRTC in this fb, turn the connectors on/off. */ drm_modeset_lock_all(dev); diff --git a/drivers/gpu/drm/gma500/gtt.c b/drivers/gpu/drm/gma500/gtt.c index 92babac362ec..2db731f00930 100644 --- a/drivers/gpu/drm/gma500/gtt.c +++ b/drivers/gpu/drm/gma500/gtt.c @@ -204,6 +204,7 @@ static int psb_gtt_attach_pages(struct gtt_range *gt) if (IS_ERR(pages)) return PTR_ERR(pages); + gt->npage = gt->gem.size / PAGE_SIZE; gt->pages = pages; return 0; diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index c27a21034a5e..d5c784d48671 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1290,12 +1290,9 @@ static int i915_load_modeset_init(struct drm_device *dev) * then we do not take part in VGA arbitration and the * vga_client_register() fails with -ENODEV. */ - if (!HAS_PCH_SPLIT(dev)) { - ret = vga_client_register(dev->pdev, dev, NULL, - i915_vga_set_decode); - if (ret && ret != -ENODEV) - goto out; - } + ret = vga_client_register(dev->pdev, dev, NULL, i915_vga_set_decode); + if (ret && ret != -ENODEV) + goto out; intel_register_dsm_handler(); @@ -1351,12 +1348,6 @@ static int i915_load_modeset_init(struct drm_device *dev) */ intel_fbdev_initial_config(dev); - /* - * Must do this after fbcon init so that - * vgacon_save_screen() works during the handover. - */ - i915_disable_vga_mem(dev); - /* Only enable hotplug handling once the fbdev is fully set up. */ dev_priv->enable_hotplug_processing = true; diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 69d8ed5416c3..2ad27880cd04 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -505,6 +505,8 @@ static int i915_drm_freeze(struct drm_device *dev) intel_modeset_suspend_hw(dev); } + i915_gem_suspend_gtt_mappings(dev); + i915_save_state(dev); intel_opregion_fini(dev); @@ -648,7 +650,8 @@ static int i915_drm_thaw(struct drm_device *dev) mutex_lock(&dev->struct_mutex); i915_gem_restore_gtt_mappings(dev); mutex_unlock(&dev->struct_mutex); - } + } else if (drm_core_check_feature(dev, DRIVER_MODESET)) + i915_check_and_clear_faults(dev); __i915_drm_thaw(dev); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 35874b3a86dc..ab0f2c0a440c 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -497,10 +497,12 @@ struct i915_address_space { /* FIXME: Need a more generic return type */ gen6_gtt_pte_t (*pte_encode)(dma_addr_t addr, - enum i915_cache_level level); + enum i915_cache_level level, + bool valid); /* Create a valid PTE */ void (*clear_range)(struct i915_address_space *vm, unsigned int first_entry, - unsigned int num_entries); + unsigned int num_entries, + bool use_scratch); void (*insert_entries)(struct i915_address_space *vm, struct sg_table *st, unsigned int first_entry, @@ -2065,6 +2067,8 @@ void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt, void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt, struct drm_i915_gem_object *obj); +void i915_check_and_clear_faults(struct drm_device *dev); +void i915_gem_suspend_gtt_mappings(struct drm_device *dev); void i915_gem_restore_gtt_mappings(struct drm_device *dev); int __must_check i915_gem_gtt_prepare_object(struct drm_i915_gem_object *obj); void i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj, diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 212f6d8c35ec..1f7b4caefb6e 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -58,9 +58,10 @@ #define HSW_WT_ELLC_LLC_AGE0 HSW_CACHEABILITY_CONTROL(0x6) static gen6_gtt_pte_t snb_pte_encode(dma_addr_t addr, - enum i915_cache_level level) + enum i915_cache_level level, + bool valid) { - gen6_gtt_pte_t pte = GEN6_PTE_VALID; + gen6_gtt_pte_t pte = valid ? GEN6_PTE_VALID : 0; pte |= GEN6_PTE_ADDR_ENCODE(addr); switch (level) { @@ -79,9 +80,10 @@ static gen6_gtt_pte_t snb_pte_encode(dma_addr_t addr, } static gen6_gtt_pte_t ivb_pte_encode(dma_addr_t addr, - enum i915_cache_level level) + enum i915_cache_level level, + bool valid) { - gen6_gtt_pte_t pte = GEN6_PTE_VALID; + gen6_gtt_pte_t pte = valid ? GEN6_PTE_VALID : 0; pte |= GEN6_PTE_ADDR_ENCODE(addr); switch (level) { @@ -105,9 +107,10 @@ static gen6_gtt_pte_t ivb_pte_encode(dma_addr_t addr, #define BYT_PTE_SNOOPED_BY_CPU_CACHES (1 << 2) static gen6_gtt_pte_t byt_pte_encode(dma_addr_t addr, - enum i915_cache_level level) + enum i915_cache_level level, + bool valid) { - gen6_gtt_pte_t pte = GEN6_PTE_VALID; + gen6_gtt_pte_t pte = valid ? GEN6_PTE_VALID : 0; pte |= GEN6_PTE_ADDR_ENCODE(addr); /* Mark the page as writeable. Other platforms don't have a @@ -122,9 +125,10 @@ static gen6_gtt_pte_t byt_pte_encode(dma_addr_t addr, } static gen6_gtt_pte_t hsw_pte_encode(dma_addr_t addr, - enum i915_cache_level level) + enum i915_cache_level level, + bool valid) { - gen6_gtt_pte_t pte = GEN6_PTE_VALID; + gen6_gtt_pte_t pte = valid ? GEN6_PTE_VALID : 0; pte |= HSW_PTE_ADDR_ENCODE(addr); if (level != I915_CACHE_NONE) @@ -134,9 +138,10 @@ static gen6_gtt_pte_t hsw_pte_encode(dma_addr_t addr, } static gen6_gtt_pte_t iris_pte_encode(dma_addr_t addr, - enum i915_cache_level level) + enum i915_cache_level level, + bool valid) { - gen6_gtt_pte_t pte = GEN6_PTE_VALID; + gen6_gtt_pte_t pte = valid ? GEN6_PTE_VALID : 0; pte |= HSW_PTE_ADDR_ENCODE(addr); switch (level) { @@ -236,7 +241,8 @@ static int gen6_ppgtt_enable(struct drm_device *dev) /* PPGTT support for Sandybdrige/Gen6 and later */ static void gen6_ppgtt_clear_range(struct i915_address_space *vm, unsigned first_entry, - unsigned num_entries) + unsigned num_entries, + bool use_scratch) { struct i915_hw_ppgtt *ppgtt = container_of(vm, struct i915_hw_ppgtt, base); @@ -245,7 +251,7 @@ static void gen6_ppgtt_clear_range(struct i915_address_space *vm, unsigned first_pte = first_entry % I915_PPGTT_PT_ENTRIES; unsigned last_pte, i; - scratch_pte = vm->pte_encode(vm->scratch.addr, I915_CACHE_LLC); + scratch_pte = vm->pte_encode(vm->scratch.addr, I915_CACHE_LLC, true); while (num_entries) { last_pte = first_pte + num_entries; @@ -282,7 +288,7 @@ static void gen6_ppgtt_insert_entries(struct i915_address_space *vm, dma_addr_t page_addr; page_addr = sg_page_iter_dma_address(&sg_iter); - pt_vaddr[act_pte] = vm->pte_encode(page_addr, cache_level); + pt_vaddr[act_pte] = vm->pte_encode(page_addr, cache_level, true); if (++act_pte == I915_PPGTT_PT_ENTRIES) { kunmap_atomic(pt_vaddr); act_pt++; @@ -367,7 +373,7 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt) } ppgtt->base.clear_range(&ppgtt->base, 0, - ppgtt->num_pd_entries * I915_PPGTT_PT_ENTRIES); + ppgtt->num_pd_entries * I915_PPGTT_PT_ENTRIES, true); ppgtt->pd_offset = first_pd_entry_in_global_pt * sizeof(gen6_gtt_pte_t); @@ -444,7 +450,8 @@ void i915_ppgtt_unbind_object(struct i915_hw_ppgtt *ppgtt, { ppgtt->base.clear_range(&ppgtt->base, i915_gem_obj_ggtt_offset(obj) >> PAGE_SHIFT, - obj->base.size >> PAGE_SHIFT); + obj->base.size >> PAGE_SHIFT, + true); } extern int intel_iommu_gfx_mapped; @@ -485,15 +492,65 @@ static void undo_idling(struct drm_i915_private *dev_priv, bool interruptible) dev_priv->mm.interruptible = interruptible; } +void i915_check_and_clear_faults(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + struct intel_ring_buffer *ring; + int i; + + if (INTEL_INFO(dev)->gen < 6) + return; + + for_each_ring(ring, dev_priv, i) { + u32 fault_reg; + fault_reg = I915_READ(RING_FAULT_REG(ring)); + if (fault_reg & RING_FAULT_VALID) { + DRM_DEBUG_DRIVER("Unexpected fault\n" + "\tAddr: 0x%08lx\\n" + "\tAddress space: %s\n" + "\tSource ID: %d\n" + "\tType: %d\n", + fault_reg & PAGE_MASK, + fault_reg & RING_FAULT_GTTSEL_MASK ? "GGTT" : "PPGTT", + RING_FAULT_SRCID(fault_reg), + RING_FAULT_FAULT_TYPE(fault_reg)); + I915_WRITE(RING_FAULT_REG(ring), + fault_reg & ~RING_FAULT_VALID); + } + } + POSTING_READ(RING_FAULT_REG(&dev_priv->ring[RCS])); +} + +void i915_gem_suspend_gtt_mappings(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + /* Don't bother messing with faults pre GEN6 as we have little + * documentation supporting that it's a good idea. + */ + if (INTEL_INFO(dev)->gen < 6) + return; + + i915_check_and_clear_faults(dev); + + dev_priv->gtt.base.clear_range(&dev_priv->gtt.base, + dev_priv->gtt.base.start / PAGE_SIZE, + dev_priv->gtt.base.total / PAGE_SIZE, + false); +} + void i915_gem_restore_gtt_mappings(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct drm_i915_gem_object *obj; + i915_check_and_clear_faults(dev); + /* First fill our portion of the GTT with scratch pages */ dev_priv->gtt.base.clear_range(&dev_priv->gtt.base, dev_priv->gtt.base.start / PAGE_SIZE, - dev_priv->gtt.base.total / PAGE_SIZE); + dev_priv->gtt.base.total / PAGE_SIZE, + true); list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) { i915_gem_clflush_object(obj, obj->pin_display); @@ -536,7 +593,7 @@ static void gen6_ggtt_insert_entries(struct i915_address_space *vm, for_each_sg_page(st->sgl, &sg_iter, st->nents, 0) { addr = sg_page_iter_dma_address(&sg_iter); - iowrite32(vm->pte_encode(addr, level), >t_entries[i]); + iowrite32(vm->pte_encode(addr, level, true), >t_entries[i]); i++; } @@ -548,7 +605,7 @@ static void gen6_ggtt_insert_entries(struct i915_address_space *vm, */ if (i != 0) WARN_ON(readl(>t_entries[i-1]) != - vm->pte_encode(addr, level)); + vm->pte_encode(addr, level, true)); /* This next bit makes the above posting read even more important. We * want to flush the TLBs only after we're certain all the PTE updates @@ -560,7 +617,8 @@ static void gen6_ggtt_insert_entries(struct i915_address_space *vm, static void gen6_ggtt_clear_range(struct i915_address_space *vm, unsigned int first_entry, - unsigned int num_entries) + unsigned int num_entries, + bool use_scratch) { struct drm_i915_private *dev_priv = vm->dev->dev_private; gen6_gtt_pte_t scratch_pte, __iomem *gtt_base = @@ -573,7 +631,8 @@ static void gen6_ggtt_clear_range(struct i915_address_space *vm, first_entry, num_entries, max_entries)) num_entries = max_entries; - scratch_pte = vm->pte_encode(vm->scratch.addr, I915_CACHE_LLC); + scratch_pte = vm->pte_encode(vm->scratch.addr, I915_CACHE_LLC, use_scratch); + for (i = 0; i < num_entries; i++) iowrite32(scratch_pte, >t_base[i]); readl(gtt_base); @@ -594,7 +653,8 @@ static void i915_ggtt_insert_entries(struct i915_address_space *vm, static void i915_ggtt_clear_range(struct i915_address_space *vm, unsigned int first_entry, - unsigned int num_entries) + unsigned int num_entries, + bool unused) { intel_gtt_clear_range(first_entry, num_entries); } @@ -622,7 +682,8 @@ void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj) dev_priv->gtt.base.clear_range(&dev_priv->gtt.base, entry, - obj->base.size >> PAGE_SHIFT); + obj->base.size >> PAGE_SHIFT, + true); obj->has_global_gtt_mapping = 0; } @@ -709,11 +770,11 @@ void i915_gem_setup_global_gtt(struct drm_device *dev, const unsigned long count = (hole_end - hole_start) / PAGE_SIZE; DRM_DEBUG_KMS("clearing unused GTT space: [%lx, %lx]\n", hole_start, hole_end); - ggtt_vm->clear_range(ggtt_vm, hole_start / PAGE_SIZE, count); + ggtt_vm->clear_range(ggtt_vm, hole_start / PAGE_SIZE, count, true); } /* And finally clear the reserved guard page */ - ggtt_vm->clear_range(ggtt_vm, end / PAGE_SIZE - 1, 1); + ggtt_vm->clear_range(ggtt_vm, end / PAGE_SIZE - 1, 1, true); } static bool diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c159e1a6810f..ef9b35479f01 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -604,6 +604,10 @@ #define ARB_MODE_SWIZZLE_IVB (1<<5) #define RENDER_HWS_PGA_GEN7 (0x04080) #define RING_FAULT_REG(ring) (0x4094 + 0x100*(ring)->id) +#define RING_FAULT_GTTSEL_MASK (1<<11) +#define RING_FAULT_SRCID(x) ((x >> 3) & 0xff) +#define RING_FAULT_FAULT_TYPE(x) ((x >> 1) & 0x3) +#define RING_FAULT_VALID (1<<0) #define DONE_REG 0x40b0 #define BSD_HWS_PGA_GEN7 (0x04180) #define BLT_HWS_PGA_GEN7 (0x04280) @@ -3881,6 +3885,9 @@ #define GEN7_SQ_CHICKEN_MBCUNIT_CONFIG 0x9030 #define GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB (1<<11) +#define HSW_SCRATCH1 0xb038 +#define HSW_SCRATCH1_L3_DATA_ATOMICS_DISABLE (1<<27) + #define HSW_FUSE_STRAP 0x42014 #define HSW_CDCLK_LIMIT (1 << 24) @@ -4276,7 +4283,9 @@ #define FDI_RX_CHICKEN(pipe) _PIPE(pipe, _FDI_RXA_CHICKEN, _FDI_RXB_CHICKEN) #define SOUTH_DSPCLK_GATE_D 0xc2020 +#define PCH_DPLUNIT_CLOCK_GATE_DISABLE (1<<30) #define PCH_DPLSUNIT_CLOCK_GATE_DISABLE (1<<29) +#define PCH_CPUNIT_CLOCK_GATE_DISABLE (1<<14) #define PCH_LP_PARTITION_LEVEL_DISABLE (1<<12) /* CPU: FDI_TX */ @@ -4728,6 +4737,9 @@ #define GEN7_ROW_CHICKEN2_GT2 0xf4f4 #define DOP_CLOCK_GATING_DISABLE (1<<0) +#define HSW_ROW_CHICKEN3 0xe49c +#define HSW_ROW_CHICKEN3_L3_GLOBAL_ATOMICS_DISABLE (1 << 6) + #define G4X_AUD_VID_DID (dev_priv->info->display_mmio_offset + 0x62020) #define INTEL_AUDIO_DEVCL 0x808629FB #define INTEL_AUDIO_DEVBLC 0x80862801 diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index ea9022ef15d5..10d1de5bce6f 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -83,8 +83,7 @@ static bool intel_crt_get_hw_state(struct intel_encoder *encoder, return true; } -static void intel_crt_get_config(struct intel_encoder *encoder, - struct intel_crtc_config *pipe_config) +static unsigned int intel_crt_get_flags(struct intel_encoder *encoder) { struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; struct intel_crt *crt = intel_encoder_to_crt(encoder); @@ -102,7 +101,25 @@ static void intel_crt_get_config(struct intel_encoder *encoder, else flags |= DRM_MODE_FLAG_NVSYNC; - pipe_config->adjusted_mode.flags |= flags; + return flags; +} + +static void intel_crt_get_config(struct intel_encoder *encoder, + struct intel_crtc_config *pipe_config) +{ + pipe_config->adjusted_mode.flags |= intel_crt_get_flags(encoder); +} + +static void hsw_crt_get_config(struct intel_encoder *encoder, + struct intel_crtc_config *pipe_config) +{ + intel_ddi_get_config(encoder, pipe_config); + + pipe_config->adjusted_mode.flags &= ~(DRM_MODE_FLAG_PHSYNC | + DRM_MODE_FLAG_NHSYNC | + DRM_MODE_FLAG_PVSYNC | + DRM_MODE_FLAG_NVSYNC); + pipe_config->adjusted_mode.flags |= intel_crt_get_flags(encoder); } /* Note: The caller is required to filter out dpms modes not supported by the @@ -799,7 +816,10 @@ void intel_crt_init(struct drm_device *dev) crt->base.mode_set = intel_crt_mode_set; crt->base.disable = intel_disable_crt; crt->base.enable = intel_enable_crt; - crt->base.get_config = intel_crt_get_config; + if (IS_HASWELL(dev)) + crt->base.get_config = hsw_crt_get_config; + else + crt->base.get_config = intel_crt_get_config; if (I915_HAS_HOTPLUG(dev)) crt->base.hpd_pin = HPD_CRT; if (HAS_DDI(dev)) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index 63de2701b974..b53fff84a7d5 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -1249,8 +1249,8 @@ static void intel_ddi_hot_plug(struct intel_encoder *intel_encoder) intel_dp_check_link_status(intel_dp); } -static void intel_ddi_get_config(struct intel_encoder *encoder, - struct intel_crtc_config *pipe_config) +void intel_ddi_get_config(struct intel_encoder *encoder, + struct intel_crtc_config *pipe_config) { struct drm_i915_private *dev_priv = encoder->base.dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc); @@ -1268,6 +1268,23 @@ static void intel_ddi_get_config(struct intel_encoder *encoder, flags |= DRM_MODE_FLAG_NVSYNC; pipe_config->adjusted_mode.flags |= flags; + + switch (temp & TRANS_DDI_BPC_MASK) { + case TRANS_DDI_BPC_6: + pipe_config->pipe_bpp = 18; + break; + case TRANS_DDI_BPC_8: + pipe_config->pipe_bpp = 24; + break; + case TRANS_DDI_BPC_10: + pipe_config->pipe_bpp = 30; + break; + case TRANS_DDI_BPC_12: + pipe_config->pipe_bpp = 36; + break; + default: + break; + } } static void intel_ddi_destroy(struct drm_encoder *encoder) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e5822e79f912..d78d33f9337d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2327,9 +2327,10 @@ static void intel_fdi_normal_train(struct drm_crtc *crtc) FDI_FE_ERRC_ENABLE); } -static bool pipe_has_enabled_pch(struct intel_crtc *intel_crtc) +static bool pipe_has_enabled_pch(struct intel_crtc *crtc) { - return intel_crtc->base.enabled && intel_crtc->config.has_pch_encoder; + return crtc->base.enabled && crtc->active && + crtc->config.has_pch_encoder; } static void ivb_modeset_global_resources(struct drm_device *dev) @@ -2979,6 +2980,48 @@ static void ironlake_pch_transcoder_set_timings(struct intel_crtc *crtc, I915_READ(VSYNCSHIFT(cpu_transcoder))); } +static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t temp; + + temp = I915_READ(SOUTH_CHICKEN1); + if (temp & FDI_BC_BIFURCATION_SELECT) + return; + + WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); + WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); + + temp |= FDI_BC_BIFURCATION_SELECT; + DRM_DEBUG_KMS("enabling fdi C rx\n"); + I915_WRITE(SOUTH_CHICKEN1, temp); + POSTING_READ(SOUTH_CHICKEN1); +} + +static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc) +{ + struct drm_device *dev = intel_crtc->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + + switch (intel_crtc->pipe) { + case PIPE_A: + break; + case PIPE_B: + if (intel_crtc->config.fdi_lanes > 2) + WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT); + else + cpt_enable_fdi_bc_bifurcation(dev); + + break; + case PIPE_C: + cpt_enable_fdi_bc_bifurcation(dev); + + break; + default: + BUG(); + } +} + /* * Enable PCH resources required for PCH ports: * - PCH PLLs @@ -2997,6 +3040,9 @@ static void ironlake_pch_enable(struct drm_crtc *crtc) assert_pch_transcoder_disabled(dev_priv, pipe); + if (IS_IVYBRIDGE(dev)) + ivybridge_update_fdi_bc_bifurcation(intel_crtc); + /* Write the TU size bits before fdi link training, so that error * detection works. */ I915_WRITE(FDI_RX_TUSIZE1(pipe), @@ -3941,8 +3987,6 @@ static void intel_connector_check_state(struct intel_connector *connector) * consider. */ void intel_connector_dpms(struct drm_connector *connector, int mode) { - struct intel_encoder *encoder = intel_attached_encoder(connector); - /* All the simple cases only support two dpms states. */ if (mode != DRM_MODE_DPMS_ON) mode = DRM_MODE_DPMS_OFF; @@ -3953,10 +3997,8 @@ void intel_connector_dpms(struct drm_connector *connector, int mode) connector->dpms = mode; /* Only need to change hw state when actually enabled */ - if (encoder->base.crtc) - intel_encoder_dpms(encoder, mode); - else - WARN_ON(encoder->connectors_active != false); + if (connector->encoder) + intel_encoder_dpms(to_intel_encoder(connector->encoder), mode); intel_modeset_check_state(connector->dev); } @@ -4987,6 +5029,22 @@ static bool i9xx_get_pipe_config(struct intel_crtc *crtc, if (!(tmp & PIPECONF_ENABLE)) return false; + if (IS_G4X(dev) || IS_VALLEYVIEW(dev)) { + switch (tmp & PIPECONF_BPC_MASK) { + case PIPECONF_6BPC: + pipe_config->pipe_bpp = 18; + break; + case PIPECONF_8BPC: + pipe_config->pipe_bpp = 24; + break; + case PIPECONF_10BPC: + pipe_config->pipe_bpp = 30; + break; + default: + break; + } + } + intel_get_pipe_timings(crtc, pipe_config); i9xx_get_pfit_config(crtc, pipe_config); @@ -5580,48 +5638,6 @@ static bool ironlake_compute_clocks(struct drm_crtc *crtc, return true; } -static void cpt_enable_fdi_bc_bifurcation(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - uint32_t temp; - - temp = I915_READ(SOUTH_CHICKEN1); - if (temp & FDI_BC_BIFURCATION_SELECT) - return; - - WARN_ON(I915_READ(FDI_RX_CTL(PIPE_B)) & FDI_RX_ENABLE); - WARN_ON(I915_READ(FDI_RX_CTL(PIPE_C)) & FDI_RX_ENABLE); - - temp |= FDI_BC_BIFURCATION_SELECT; - DRM_DEBUG_KMS("enabling fdi C rx\n"); - I915_WRITE(SOUTH_CHICKEN1, temp); - POSTING_READ(SOUTH_CHICKEN1); -} - -static void ivybridge_update_fdi_bc_bifurcation(struct intel_crtc *intel_crtc) -{ - struct drm_device *dev = intel_crtc->base.dev; - struct drm_i915_private *dev_priv = dev->dev_private; - - switch (intel_crtc->pipe) { - case PIPE_A: - break; - case PIPE_B: - if (intel_crtc->config.fdi_lanes > 2) - WARN_ON(I915_READ(SOUTH_CHICKEN1) & FDI_BC_BIFURCATION_SELECT); - else - cpt_enable_fdi_bc_bifurcation(dev); - - break; - case PIPE_C: - cpt_enable_fdi_bc_bifurcation(dev); - - break; - default: - BUG(); - } -} - int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp) { /* @@ -5815,9 +5831,6 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, &intel_crtc->config.fdi_m_n); } - if (IS_IVYBRIDGE(dev)) - ivybridge_update_fdi_bc_bifurcation(intel_crtc); - ironlake_set_pipeconf(crtc); /* Set up the display plane register */ @@ -5885,6 +5898,23 @@ static bool ironlake_get_pipe_config(struct intel_crtc *crtc, if (!(tmp & PIPECONF_ENABLE)) return false; + switch (tmp & PIPECONF_BPC_MASK) { + case PIPECONF_6BPC: + pipe_config->pipe_bpp = 18; + break; + case PIPECONF_8BPC: + pipe_config->pipe_bpp = 24; + break; + case PIPECONF_10BPC: + pipe_config->pipe_bpp = 30; + break; + case PIPECONF_12BPC: + pipe_config->pipe_bpp = 36; + break; + default: + break; + } + if (I915_READ(PCH_TRANSCONF(crtc->pipe)) & TRANS_ENABLE) { struct intel_shared_dpll *pll; @@ -8616,6 +8646,9 @@ intel_pipe_config_compare(struct drm_device *dev, PIPE_CONF_CHECK_X(dpll_hw_state.fp0); PIPE_CONF_CHECK_X(dpll_hw_state.fp1); + if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) + PIPE_CONF_CHECK_I(pipe_bpp); + #undef PIPE_CONF_CHECK_X #undef PIPE_CONF_CHECK_I #undef PIPE_CONF_CHECK_FLAGS @@ -10049,33 +10082,6 @@ static void i915_disable_vga(struct drm_device *dev) POSTING_READ(vga_reg); } -static void i915_enable_vga_mem(struct drm_device *dev) -{ - /* Enable VGA memory on Intel HD */ - if (HAS_PCH_SPLIT(dev)) { - vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); - outb(inb(VGA_MSR_READ) | VGA_MSR_MEM_EN, VGA_MSR_WRITE); - vga_set_legacy_decoding(dev->pdev, VGA_RSRC_LEGACY_IO | - VGA_RSRC_LEGACY_MEM | - VGA_RSRC_NORMAL_IO | - VGA_RSRC_NORMAL_MEM); - vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); - } -} - -void i915_disable_vga_mem(struct drm_device *dev) -{ - /* Disable VGA memory on Intel HD */ - if (HAS_PCH_SPLIT(dev)) { - vga_get_uninterruptible(dev->pdev, VGA_RSRC_LEGACY_IO); - outb(inb(VGA_MSR_READ) & ~VGA_MSR_MEM_EN, VGA_MSR_WRITE); - vga_set_legacy_decoding(dev->pdev, VGA_RSRC_LEGACY_IO | - VGA_RSRC_NORMAL_IO | - VGA_RSRC_NORMAL_MEM); - vga_put(dev->pdev, VGA_RSRC_LEGACY_IO); - } -} - void intel_modeset_init_hw(struct drm_device *dev) { intel_init_power_well(dev); @@ -10354,7 +10360,6 @@ void i915_redisable_vga(struct drm_device *dev) if (I915_READ(vga_reg) != VGA_DISP_DISABLE) { DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n"); i915_disable_vga(dev); - i915_disable_vga_mem(dev); } } @@ -10568,8 +10573,6 @@ void intel_modeset_cleanup(struct drm_device *dev) intel_disable_fbc(dev); - i915_enable_vga_mem(dev); - intel_disable_gt_powersave(dev); ironlake_teardown_rc6(dev); diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 79c14e298ba6..1a431377d83b 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1401,6 +1401,26 @@ static void intel_dp_get_config(struct intel_encoder *encoder, else pipe_config->port_clock = 270000; } + + if (is_edp(intel_dp) && dev_priv->vbt.edp_bpp && + pipe_config->pipe_bpp > dev_priv->vbt.edp_bpp) { + /* + * This is a big fat ugly hack. + * + * Some machines in UEFI boot mode provide us a VBT that has 18 + * bpp and 1.62 GHz link bandwidth for eDP, which for reasons + * unknown we fail to light up. Yet the same BIOS boots up with + * 24 bpp and 2.7 GHz link. Use the same bpp as the BIOS uses as + * max, not what it tells us to use. + * + * Note: This will still be broken if the eDP panel is not lit + * up by the BIOS, and thus we can't get the mode at module + * load. + */ + DRM_DEBUG_KMS("pipe has %d bpp for eDP panel, overriding BIOS-provided max %d bpp\n", + pipe_config->pipe_bpp, dev_priv->vbt.edp_bpp); + dev_priv->vbt.edp_bpp = pipe_config->pipe_bpp; + } } static bool is_edp_psr(struct intel_dp *intel_dp) @@ -1467,7 +1487,7 @@ static void intel_edp_psr_setup(struct intel_dp *intel_dp) /* Avoid continuous PSR exit by masking memup and hpd */ I915_WRITE(EDP_PSR_DEBUG_CTL, EDP_PSR_DEBUG_MASK_MEMUP | - EDP_PSR_DEBUG_MASK_HPD); + EDP_PSR_DEBUG_MASK_HPD | EDP_PSR_DEBUG_MASK_LPSP); intel_dp->psr_setup_done = true; } diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 28cae80495e2..7f2b384ac939 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -765,6 +765,8 @@ extern void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder); extern bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector); extern void intel_ddi_fdi_disable(struct drm_crtc *crtc); +extern void intel_ddi_get_config(struct intel_encoder *encoder, + struct intel_crtc_config *pipe_config); extern void intel_display_handle_reset(struct drm_device *dev); extern bool intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev, @@ -793,6 +795,5 @@ extern void hsw_pc8_disable_interrupts(struct drm_device *dev); extern void hsw_pc8_restore_interrupts(struct drm_device *dev); extern void intel_aux_display_runtime_get(struct drm_i915_private *dev_priv); extern void intel_aux_display_runtime_put(struct drm_i915_private *dev_priv); -extern void i915_disable_vga_mem(struct drm_device *dev); #endif /* __INTEL_DRV_H__ */ diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 831a5c021c4b..b8af94a5be39 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -700,6 +700,22 @@ static const struct dmi_system_id intel_no_lvds[] = { }, { .callback = intel_no_lvds_dmi_callback, + .ident = "Intel D410PT", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), + DMI_MATCH(DMI_BOARD_NAME, "D410PT"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, + .ident = "Intel D425KT", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), + DMI_EXACT_MATCH(DMI_BOARD_NAME, "D425KT"), + }, + }, + { + .callback = intel_no_lvds_dmi_callback, .ident = "Intel D510MO", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Intel"), diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index dd176b7296c1..26c2ea3e985c 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3864,8 +3864,6 @@ static void valleyview_enable_rps(struct drm_device *dev) dev_priv->rps.rpe_delay), dev_priv->rps.rpe_delay); - INIT_DELAYED_WORK(&dev_priv->rps.vlv_work, vlv_rps_timer_work); - valleyview_set_rps(dev_priv->dev, dev_priv->rps.rpe_delay); gen6_enable_rps_interrupts(dev); @@ -4761,7 +4759,9 @@ static void cpt_init_clock_gating(struct drm_device *dev) * gating for the panel power sequencer or it will fail to * start up when no ports are active. */ - I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE); + I915_WRITE(SOUTH_DSPCLK_GATE_D, PCH_DPLSUNIT_CLOCK_GATE_DISABLE | + PCH_DPLUNIT_CLOCK_GATE_DISABLE | + PCH_CPUNIT_CLOCK_GATE_DISABLE); I915_WRITE(SOUTH_CHICKEN2, I915_READ(SOUTH_CHICKEN2) | DPLS_EDP_PPS_FIX_DIS); /* The below fixes the weird display corruption, a few pixels shifted @@ -4955,6 +4955,11 @@ static void haswell_init_clock_gating(struct drm_device *dev) I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER, GEN7_WA_L3_CHICKEN_MODE); + /* L3 caching of data atomics doesn't work -- disable it. */ + I915_WRITE(HSW_SCRATCH1, HSW_SCRATCH1_L3_DATA_ATOMICS_DISABLE); + I915_WRITE(HSW_ROW_CHICKEN3, + _MASKED_BIT_ENABLE(HSW_ROW_CHICKEN3_L3_GLOBAL_ATOMICS_DISABLE)); + /* This is required by WaCatErrorRejectionIssue:hsw */ I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG, I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) | @@ -5681,5 +5686,7 @@ void intel_pm_init(struct drm_device *dev) INIT_DELAYED_WORK(&dev_priv->rps.delayed_resume_work, intel_gen6_powersave_work); + + INIT_DELAYED_WORK(&dev_priv->rps.vlv_work, vlv_rps_timer_work); } diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c index 37712a6df923..e290cfa4acee 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c @@ -113,7 +113,7 @@ nouveau_mc_create_(struct nouveau_object *parent, struct nouveau_object *engine, pmc->use_msi = false; break; default: - pmc->use_msi = nouveau_boolopt(device->cfgopt, "NvMSI", true); + pmc->use_msi = nouveau_boolopt(device->cfgopt, "NvMSI", false); if (pmc->use_msi) { pmc->use_msi = pci_enable_msi(device->pdev) == 0; if (pmc->use_msi) { diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index 32923d2f6002..5e891b226acf 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -707,24 +707,37 @@ atombios_get_encoder_mode(struct drm_encoder *encoder) switch (connector->connector_type) { case DRM_MODE_CONNECTOR_DVII: case DRM_MODE_CONNECTOR_HDMIB: /* HDMI-B is basically DL-DVI; analog works fine */ - if ((radeon_connector->audio == RADEON_AUDIO_ENABLE) || - (drm_detect_hdmi_monitor(radeon_connector->edid) && - (radeon_connector->audio == RADEON_AUDIO_AUTO))) - return ATOM_ENCODER_MODE_HDMI; - else if (radeon_connector->use_digital) + if (radeon_audio != 0) { + if (radeon_connector->use_digital && + (radeon_connector->audio == RADEON_AUDIO_ENABLE)) + return ATOM_ENCODER_MODE_HDMI; + else if (drm_detect_hdmi_monitor(radeon_connector->edid) && + (radeon_connector->audio == RADEON_AUDIO_AUTO)) + return ATOM_ENCODER_MODE_HDMI; + else if (radeon_connector->use_digital) + return ATOM_ENCODER_MODE_DVI; + else + return ATOM_ENCODER_MODE_CRT; + } else if (radeon_connector->use_digital) { return ATOM_ENCODER_MODE_DVI; - else + } else { return ATOM_ENCODER_MODE_CRT; + } break; case DRM_MODE_CONNECTOR_DVID: case DRM_MODE_CONNECTOR_HDMIA: default: - if ((radeon_connector->audio == RADEON_AUDIO_ENABLE) || - (drm_detect_hdmi_monitor(radeon_connector->edid) && - (radeon_connector->audio == RADEON_AUDIO_AUTO))) - return ATOM_ENCODER_MODE_HDMI; - else + if (radeon_audio != 0) { + if (radeon_connector->audio == RADEON_AUDIO_ENABLE) + return ATOM_ENCODER_MODE_HDMI; + else if (drm_detect_hdmi_monitor(radeon_connector->edid) && + (radeon_connector->audio == RADEON_AUDIO_AUTO)) + return ATOM_ENCODER_MODE_HDMI; + else + return ATOM_ENCODER_MODE_DVI; + } else { return ATOM_ENCODER_MODE_DVI; + } break; case DRM_MODE_CONNECTOR_LVDS: return ATOM_ENCODER_MODE_LVDS; @@ -732,14 +745,19 @@ atombios_get_encoder_mode(struct drm_encoder *encoder) case DRM_MODE_CONNECTOR_DisplayPort: dig_connector = radeon_connector->con_priv; if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) || - (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) + (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) { return ATOM_ENCODER_MODE_DP; - else if ((radeon_connector->audio == RADEON_AUDIO_ENABLE) || - (drm_detect_hdmi_monitor(radeon_connector->edid) && - (radeon_connector->audio == RADEON_AUDIO_AUTO))) - return ATOM_ENCODER_MODE_HDMI; - else + } else if (radeon_audio != 0) { + if (radeon_connector->audio == RADEON_AUDIO_ENABLE) + return ATOM_ENCODER_MODE_HDMI; + else if (drm_detect_hdmi_monitor(radeon_connector->edid) && + (radeon_connector->audio == RADEON_AUDIO_AUTO)) + return ATOM_ENCODER_MODE_HDMI; + else + return ATOM_ENCODER_MODE_DVI; + } else { return ATOM_ENCODER_MODE_DVI; + } break; case DRM_MODE_CONNECTOR_eDP: return ATOM_ENCODER_MODE_DP; @@ -1655,7 +1673,7 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode) * does the same thing and more. */ if ((rdev->family != CHIP_RV710) && (rdev->family != CHIP_RV730) && - (rdev->family != CHIP_RS880)) + (rdev->family != CHIP_RS780) && (rdev->family != CHIP_RS880)) atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0); } if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) { diff --git a/drivers/gpu/drm/radeon/btc_dpm.c b/drivers/gpu/drm/radeon/btc_dpm.c index b162e98a2953..9b6950d9b3c0 100644 --- a/drivers/gpu/drm/radeon/btc_dpm.c +++ b/drivers/gpu/drm/radeon/btc_dpm.c @@ -1930,7 +1930,7 @@ static int btc_set_mc_special_registers(struct radeon_device *rdev, } j++; - if (j > SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE) + if (j >= SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE) return -EINVAL; tmp = RREG32(MC_PMG_CMD_MRS); @@ -1945,7 +1945,7 @@ static int btc_set_mc_special_registers(struct radeon_device *rdev, } j++; - if (j > SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE) + if (j >= SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE) return -EINVAL; break; case MC_SEQ_RESERVE_M >> 2: @@ -1959,7 +1959,7 @@ static int btc_set_mc_special_registers(struct radeon_device *rdev, } j++; - if (j > SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE) + if (j >= SMC_EVERGREEN_MC_REGISTER_ARRAY_SIZE) return -EINVAL; break; default: diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index d02fd1c045d5..9cd2bc989ac7 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -77,6 +77,8 @@ static void cik_pcie_gen3_enable(struct radeon_device *rdev); static void cik_program_aspm(struct radeon_device *rdev); static void cik_init_pg(struct radeon_device *rdev); static void cik_init_cg(struct radeon_device *rdev); +static void cik_fini_pg(struct radeon_device *rdev); +static void cik_fini_cg(struct radeon_device *rdev); static void cik_enable_gui_idle_interrupt(struct radeon_device *rdev, bool enable); @@ -1692,6 +1694,7 @@ static int cik_init_microcode(struct radeon_device *rdev) fw_name); release_firmware(rdev->smc_fw); rdev->smc_fw = NULL; + err = 0; } else if (rdev->smc_fw->size != smc_req_size) { printk(KERN_ERR "cik_smc: Bogus length %zu in firmware \"%s\"\n", @@ -3180,6 +3183,7 @@ int cik_ib_test(struct radeon_device *rdev, struct radeon_ring *ring) r = radeon_ib_get(rdev, ring->idx, &ib, NULL, 256); if (r) { DRM_ERROR("radeon: failed to get ib (%d).\n", r); + radeon_scratch_free(rdev, scratch); return r; } ib.ptr[0] = PACKET3(PACKET3_SET_UCONFIG_REG, 1); @@ -3196,6 +3200,8 @@ int cik_ib_test(struct radeon_device *rdev, struct radeon_ring *ring) r = radeon_fence_wait(ib.fence, false); if (r) { DRM_ERROR("radeon: fence wait failed (%d).\n", r); + radeon_scratch_free(rdev, scratch); + radeon_ib_free(rdev, &ib); return r; } for (i = 0; i < rdev->usec_timeout; i++) { @@ -4185,6 +4191,10 @@ static void cik_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask) dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS)); + /* disable CG/PG */ + cik_fini_pg(rdev); + cik_fini_cg(rdev); + /* stop the rlc */ cik_rlc_stop(rdev); diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c index 85a69d2ea3d2..9fcd338c0fcf 100644 --- a/drivers/gpu/drm/radeon/dce6_afmt.c +++ b/drivers/gpu/drm/radeon/dce6_afmt.c @@ -113,6 +113,9 @@ void dce6_afmt_write_speaker_allocation(struct drm_encoder *encoder) u8 *sadb; int sad_count; + /* XXX: setting this register causes hangs on some asics */ + return; + if (!dig->afmt->pin) return; diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 555164e270a7..b5c67a99dda9 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -3131,7 +3131,7 @@ static void evergreen_gpu_init(struct radeon_device *rdev) rdev->config.evergreen.sx_max_export_size = 256; rdev->config.evergreen.sx_max_export_pos_size = 64; rdev->config.evergreen.sx_max_export_smx_size = 192; - rdev->config.evergreen.max_hw_contexts = 8; + rdev->config.evergreen.max_hw_contexts = 4; rdev->config.evergreen.sq_num_cf_insts = 2; rdev->config.evergreen.sc_prim_fifo_size = 0x40; diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c index f71ce390aebe..57fcc4b16a52 100644 --- a/drivers/gpu/drm/radeon/evergreen_hdmi.c +++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c @@ -67,6 +67,9 @@ static void dce4_afmt_write_speaker_allocation(struct drm_encoder *encoder) u8 *sadb; int sad_count; + /* XXX: setting this register causes hangs on some asics */ + return; + list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) { if (connector->encoder == encoder) radeon_connector = to_radeon_connector(connector); @@ -288,8 +291,8 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode /* fglrx clears sth in AFMT_AUDIO_PACKET_CONTROL2 here */ WREG32(HDMI_ACR_PACKET_CONTROL + offset, - HDMI_ACR_AUTO_SEND | /* allow hw to sent ACR packets when required */ - HDMI_ACR_SOURCE); /* select SW CTS value */ + HDMI_ACR_SOURCE | /* select SW CTS value */ + HDMI_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */ evergreen_hdmi_update_ACR(encoder, mode->clock); diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index 8768fd6a1e27..4f6d2962767d 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -1501,7 +1501,7 @@ * 6. COMMAND [29:22] | BYTE_COUNT [20:0] */ # define PACKET3_CP_DMA_DST_SEL(x) ((x) << 20) - /* 0 - SRC_ADDR + /* 0 - DST_ADDR * 1 - GDS */ # define PACKET3_CP_DMA_ENGINE(x) ((x) << 27) @@ -1516,7 +1516,7 @@ # define PACKET3_CP_DMA_CP_SYNC (1 << 31) /* COMMAND */ # define PACKET3_CP_DMA_DIS_WC (1 << 21) -# define PACKET3_CP_DMA_CMD_SRC_SWAP(x) ((x) << 23) +# define PACKET3_CP_DMA_CMD_SRC_SWAP(x) ((x) << 22) /* 0 - none * 1 - 8 in 16 * 2 - 8 in 32 diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c index 71399065db04..b41905573cd2 100644 --- a/drivers/gpu/drm/radeon/kv_dpm.c +++ b/drivers/gpu/drm/radeon/kv_dpm.c @@ -2635,7 +2635,7 @@ int kv_dpm_init(struct radeon_device *rdev) pi->caps_sclk_ds = true; pi->enable_auto_thermal_throttling = true; pi->disable_nb_ps3_in_battery = false; - pi->bapm_enable = true; + pi->bapm_enable = false; pi->voltage_drop_t = 0; pi->caps_sclk_throttle_low_notification = false; pi->caps_fps = false; /* true? */ diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 93c1f9ef5da9..cac2866d79da 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -804,6 +804,7 @@ int ni_init_microcode(struct radeon_device *rdev) fw_name); release_firmware(rdev->smc_fw); rdev->smc_fw = NULL; + err = 0; } else if (rdev->smc_fw->size != smc_req_size) { printk(KERN_ERR "ni_mc: Bogus length %zu in firmware \"%s\"\n", diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 2a1b1876b431..f9be22062df1 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -2302,6 +2302,7 @@ int r600_init_microcode(struct radeon_device *rdev) fw_name); release_firmware(rdev->smc_fw); rdev->smc_fw = NULL; + err = 0; } else if (rdev->smc_fw->size != smc_req_size) { printk(KERN_ERR "smc: Bogus length %zu in firmware \"%s\"\n", diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c index b0fa6002af3e..06022e3b9c3b 100644 --- a/drivers/gpu/drm/radeon/r600_hdmi.c +++ b/drivers/gpu/drm/radeon/r600_hdmi.c @@ -57,15 +57,15 @@ enum r600_hdmi_iec_status_bits { static const struct radeon_hdmi_acr r600_hdmi_predefined_acr[] = { /* 32kHz 44.1kHz 48kHz */ /* Clock N CTS N CTS N CTS */ - { 25174, 4576, 28125, 7007, 31250, 6864, 28125 }, /* 25,20/1.001 MHz */ + { 25175, 4576, 28125, 7007, 31250, 6864, 28125 }, /* 25,20/1.001 MHz */ { 25200, 4096, 25200, 6272, 28000, 6144, 25200 }, /* 25.20 MHz */ { 27000, 4096, 27000, 6272, 30000, 6144, 27000 }, /* 27.00 MHz */ { 27027, 4096, 27027, 6272, 30030, 6144, 27027 }, /* 27.00*1.001 MHz */ { 54000, 4096, 54000, 6272, 60000, 6144, 54000 }, /* 54.00 MHz */ { 54054, 4096, 54054, 6272, 60060, 6144, 54054 }, /* 54.00*1.001 MHz */ - { 74175, 11648, 210937, 17836, 234375, 11648, 140625 }, /* 74.25/1.001 MHz */ + { 74176, 11648, 210937, 17836, 234375, 11648, 140625 }, /* 74.25/1.001 MHz */ { 74250, 4096, 74250, 6272, 82500, 6144, 74250 }, /* 74.25 MHz */ - { 148351, 11648, 421875, 8918, 234375, 5824, 140625 }, /* 148.50/1.001 MHz */ + { 148352, 11648, 421875, 8918, 234375, 5824, 140625 }, /* 148.50/1.001 MHz */ { 148500, 4096, 148500, 6272, 165000, 6144, 148500 }, /* 148.50 MHz */ { 0, 4096, 0, 6272, 0, 6144, 0 } /* Other */ }; @@ -75,8 +75,15 @@ static const struct radeon_hdmi_acr r600_hdmi_predefined_acr[] = { */ static void r600_hdmi_calc_cts(uint32_t clock, int *CTS, int N, int freq) { - if (*CTS == 0) - *CTS = clock * N / (128 * freq) * 1000; + u64 n; + u32 d; + + if (*CTS == 0) { + n = (u64)clock * (u64)N * 1000ULL; + d = 128 * freq; + do_div(n, d); + *CTS = n; + } DRM_DEBUG("Using ACR timing N=%d CTS=%d for frequency %d\n", N, *CTS, freq); } @@ -302,6 +309,9 @@ static void dce3_2_afmt_write_speaker_allocation(struct drm_encoder *encoder) u8 *sadb; int sad_count; + /* XXX: setting this register causes hangs on some asics */ + return; + list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) { if (connector->encoder == encoder) radeon_connector = to_radeon_connector(connector); @@ -444,8 +454,8 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod } WREG32(HDMI0_ACR_PACKET_CONTROL + offset, - HDMI0_ACR_AUTO_SEND | /* allow hw to sent ACR packets when required */ - HDMI0_ACR_SOURCE); /* select SW CTS value */ + HDMI0_ACR_SOURCE | /* select SW CTS value - XXX verify that hw CTS works on all families */ + HDMI0_ACR_AUTO_SEND); /* allow hw to sent ACR packets when required */ WREG32(HDMI0_VBI_PACKET_CONTROL + offset, HDMI0_NULL_SEND | /* send null packets when required */ diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h index e673fe26ea84..7b3c7b5932c5 100644 --- a/drivers/gpu/drm/radeon/r600d.h +++ b/drivers/gpu/drm/radeon/r600d.h @@ -1523,7 +1523,7 @@ */ # define PACKET3_CP_DMA_CP_SYNC (1 << 31) /* COMMAND */ -# define PACKET3_CP_DMA_CMD_SRC_SWAP(x) ((x) << 23) +# define PACKET3_CP_DMA_CMD_SRC_SWAP(x) ((x) << 22) /* 0 - none * 1 - 8 in 16 * 2 - 8 in 32 diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index a400ac1c4147..24f4960f59ee 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -1272,8 +1272,8 @@ struct radeon_blacklist_clocks struct radeon_clock_and_voltage_limits { u32 sclk; u32 mclk; - u32 vddc; - u32 vddci; + u16 vddc; + u16 vddci; }; struct radeon_clock_array { diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 79159b5da05b..64565732cb98 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -1658,9 +1658,12 @@ radeon_add_atom_connector(struct drm_device *dev, drm_object_attach_property(&radeon_connector->base.base, rdev->mode_info.underscan_vborder_property, 0); - drm_object_attach_property(&radeon_connector->base.base, - rdev->mode_info.audio_property, - RADEON_AUDIO_DISABLE); + if (radeon_audio != 0) + drm_object_attach_property(&radeon_connector->base.base, + rdev->mode_info.audio_property, + (radeon_audio == 1) ? + RADEON_AUDIO_AUTO : + RADEON_AUDIO_DISABLE); subpixel_order = SubPixelHorizontalRGB; connector->interlace_allowed = true; if (connector_type == DRM_MODE_CONNECTOR_HDMIB) @@ -1754,10 +1757,12 @@ radeon_add_atom_connector(struct drm_device *dev, rdev->mode_info.underscan_vborder_property, 0); } - if (ASIC_IS_DCE2(rdev)) { + if (ASIC_IS_DCE2(rdev) && (radeon_audio != 0)) { drm_object_attach_property(&radeon_connector->base.base, - rdev->mode_info.audio_property, - RADEON_AUDIO_DISABLE); + rdev->mode_info.audio_property, + (radeon_audio == 1) ? + RADEON_AUDIO_AUTO : + RADEON_AUDIO_DISABLE); } if (connector_type == DRM_MODE_CONNECTOR_DVII) { radeon_connector->dac_load_detect = true; @@ -1799,10 +1804,12 @@ radeon_add_atom_connector(struct drm_device *dev, rdev->mode_info.underscan_vborder_property, 0); } - if (ASIC_IS_DCE2(rdev)) { + if (ASIC_IS_DCE2(rdev) && (radeon_audio != 0)) { drm_object_attach_property(&radeon_connector->base.base, - rdev->mode_info.audio_property, - RADEON_AUDIO_DISABLE); + rdev->mode_info.audio_property, + (radeon_audio == 1) ? + RADEON_AUDIO_AUTO : + RADEON_AUDIO_DISABLE); } subpixel_order = SubPixelHorizontalRGB; connector->interlace_allowed = true; @@ -1843,10 +1850,12 @@ radeon_add_atom_connector(struct drm_device *dev, rdev->mode_info.underscan_vborder_property, 0); } - if (ASIC_IS_DCE2(rdev)) { + if (ASIC_IS_DCE2(rdev) && (radeon_audio != 0)) { drm_object_attach_property(&radeon_connector->base.base, - rdev->mode_info.audio_property, - RADEON_AUDIO_DISABLE); + rdev->mode_info.audio_property, + (radeon_audio == 1) ? + RADEON_AUDIO_AUTO : + RADEON_AUDIO_DISABLE); } connector->interlace_allowed = true; /* in theory with a DP to VGA converter... */ diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 66c222836631..80285e35bc65 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -85,9 +85,8 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p) VRAM, also but everything into VRAM on AGP cards to avoid image corruptions */ if (p->ring == R600_RING_TYPE_UVD_INDEX && - p->rdev->family < CHIP_PALM && (i == 0 || drm_pci_device_is_agp(p->rdev->ddev))) { - + /* TODO: is this still needed for NI+ ? */ p->relocs[i].lobj.domain = RADEON_GEM_DOMAIN_VRAM; diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index cdd12dcd988b..9c14a1ba1de4 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -153,7 +153,7 @@ int radeon_benchmarking = 0; int radeon_testing = 0; int radeon_connector_table = 0; int radeon_tv = 1; -int radeon_audio = 1; +int radeon_audio = -1; int radeon_disp_priority = 0; int radeon_hw_i2c = 0; int radeon_pcie_gen2 = -1; @@ -196,7 +196,7 @@ module_param_named(connector_table, radeon_connector_table, int, 0444); MODULE_PARM_DESC(tv, "TV enable (0 = disable)"); module_param_named(tv, radeon_tv, int, 0444); -MODULE_PARM_DESC(audio, "Audio enable (1 = enable)"); +MODULE_PARM_DESC(audio, "Audio enable (-1 = auto, 0 = disable, 1 = enable)"); module_param_named(audio, radeon_audio, int, 0444); MODULE_PARM_DESC(disp_priority, "Display Priority (0 = auto, 1 = normal, 2 = high)"); diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index ac07ad1d4f8c..4f6b7fc7ad3c 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -945,6 +945,8 @@ void radeon_dpm_enable_uvd(struct radeon_device *rdev, bool enable) if (enable) { mutex_lock(&rdev->pm.mutex); rdev->pm.dpm.uvd_active = true; + /* disable this for now */ +#if 0 if ((rdev->pm.dpm.sd == 1) && (rdev->pm.dpm.hd == 0)) dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_SD; else if ((rdev->pm.dpm.sd == 2) && (rdev->pm.dpm.hd == 0)) @@ -954,6 +956,7 @@ void radeon_dpm_enable_uvd(struct radeon_device *rdev, bool enable) else if ((rdev->pm.dpm.sd == 0) && (rdev->pm.dpm.hd == 2)) dpm_state = POWER_STATE_TYPE_INTERNAL_UVD_HD2; else +#endif dpm_state = POWER_STATE_TYPE_INTERNAL_UVD; rdev->pm.dpm.state = dpm_state; mutex_unlock(&rdev->pm.mutex); diff --git a/drivers/gpu/drm/radeon/radeon_test.c b/drivers/gpu/drm/radeon/radeon_test.c index f4d6bcee9006..12e8099a0823 100644 --- a/drivers/gpu/drm/radeon/radeon_test.c +++ b/drivers/gpu/drm/radeon/radeon_test.c @@ -36,8 +36,8 @@ static void radeon_do_test_moves(struct radeon_device *rdev, int flag) struct radeon_bo *vram_obj = NULL; struct radeon_bo **gtt_obj = NULL; uint64_t gtt_addr, vram_addr; - unsigned i, n, size; - int r, ring; + unsigned n, size; + int i, r, ring; switch (flag) { case RADEON_TEST_COPY_DMA: diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c index a0f11856ddde..308eff5be1b4 100644 --- a/drivers/gpu/drm/radeon/radeon_uvd.c +++ b/drivers/gpu/drm/radeon/radeon_uvd.c @@ -476,7 +476,8 @@ static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p, return -EINVAL; } - if (p->rdev->family < CHIP_PALM && (cmd == 0 || cmd == 0x3) && + /* TODO: is this still necessary on NI+ ? */ + if ((cmd == 0 || cmd == 0x3) && (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) { DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n", start, end); @@ -798,7 +799,8 @@ void radeon_uvd_note_usage(struct radeon_device *rdev) (rdev->pm.dpm.hd != hd)) { rdev->pm.dpm.sd = sd; rdev->pm.dpm.hd = hd; - streams_changed = true; + /* disable this for now */ + /*streams_changed = true;*/ } } diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index c354c1094967..d96f7cbca0a1 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -85,6 +85,9 @@ extern void si_dma_vm_set_page(struct radeon_device *rdev, uint32_t incr, uint32_t flags); static void si_enable_gui_idle_interrupt(struct radeon_device *rdev, bool enable); +static void si_fini_pg(struct radeon_device *rdev); +static void si_fini_cg(struct radeon_device *rdev); +static void si_rlc_stop(struct radeon_device *rdev); static const u32 verde_rlc_save_restore_register_list[] = { @@ -1678,6 +1681,7 @@ static int si_init_microcode(struct radeon_device *rdev) fw_name); release_firmware(rdev->smc_fw); rdev->smc_fw = NULL; + err = 0; } else if (rdev->smc_fw->size != smc_req_size) { printk(KERN_ERR "si_smc: Bogus length %zu in firmware \"%s\"\n", @@ -3608,6 +3612,13 @@ static void si_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask) dev_info(rdev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", RREG32(VM_CONTEXT1_PROTECTION_FAULT_STATUS)); + /* disable PG/CG */ + si_fini_pg(rdev); + si_fini_cg(rdev); + + /* stop the rlc */ + si_rlc_stop(rdev); + /* Disable CP parsing/prefetching */ WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT | CP_CE_HALT); diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index 9ace28702c76..2332aa1bf93c 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -5208,7 +5208,7 @@ static int si_set_mc_special_registers(struct radeon_device *rdev, table->mc_reg_table_entry[k].mc_data[j] |= 0x100; } j++; - if (j > SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE) + if (j >= SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE) return -EINVAL; if (!pi->mem_gddr5) { @@ -5218,7 +5218,7 @@ static int si_set_mc_special_registers(struct radeon_device *rdev, table->mc_reg_table_entry[k].mc_data[j] = (table->mc_reg_table_entry[k].mc_data[i] & 0xffff0000) >> 16; j++; - if (j > SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE) + if (j >= SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE) return -EINVAL; } break; @@ -5231,7 +5231,7 @@ static int si_set_mc_special_registers(struct radeon_device *rdev, (temp_reg & 0xffff0000) | (table->mc_reg_table_entry[k].mc_data[i] & 0x0000ffff); j++; - if (j > SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE) + if (j >= SMC_SISLANDS_MC_REGISTER_ARRAY_SIZE) return -EINVAL; break; default: diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h index 52d2ab6b67a0..7e2e0ea66a00 100644 --- a/drivers/gpu/drm/radeon/sid.h +++ b/drivers/gpu/drm/radeon/sid.h @@ -1553,7 +1553,7 @@ * 6. COMMAND [30:21] | BYTE_COUNT [20:0] */ # define PACKET3_CP_DMA_DST_SEL(x) ((x) << 20) - /* 0 - SRC_ADDR + /* 0 - DST_ADDR * 1 - GDS */ # define PACKET3_CP_DMA_ENGINE(x) ((x) << 27) @@ -1568,7 +1568,7 @@ # define PACKET3_CP_DMA_CP_SYNC (1 << 31) /* COMMAND */ # define PACKET3_CP_DMA_DIS_WC (1 << 21) -# define PACKET3_CP_DMA_CMD_SRC_SWAP(x) ((x) << 23) +# define PACKET3_CP_DMA_CMD_SRC_SWAP(x) ((x) << 22) /* 0 - none * 1 - 8 in 16 * 2 - 8 in 32 diff --git a/drivers/gpu/drm/radeon/trinity_dpm.c b/drivers/gpu/drm/radeon/trinity_dpm.c index 7f998bf1cc9d..9364129ba292 100644 --- a/drivers/gpu/drm/radeon/trinity_dpm.c +++ b/drivers/gpu/drm/radeon/trinity_dpm.c @@ -1868,7 +1868,7 @@ int trinity_dpm_init(struct radeon_device *rdev) for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++) pi->at[i] = TRINITY_AT_DFLT; - pi->enable_bapm = true; + pi->enable_bapm = false; pi->enable_nbps_policy = true; pi->enable_sclk_ds = true; pi->enable_gfx_power_gating = true; diff --git a/drivers/gpu/drm/radeon/uvd_v1_0.c b/drivers/gpu/drm/radeon/uvd_v1_0.c index 3100fa9cb52f..7266805d9786 100644 --- a/drivers/gpu/drm/radeon/uvd_v1_0.c +++ b/drivers/gpu/drm/radeon/uvd_v1_0.c @@ -212,8 +212,8 @@ int uvd_v1_0_start(struct radeon_device *rdev) /* enable VCPU clock */ WREG32(UVD_VCPU_CNTL, 1 << 9); - /* enable UMC and NC0 */ - WREG32_P(UVD_LMI_CTRL2, 1 << 13, ~((1 << 8) | (1 << 13))); + /* enable UMC */ + WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8)); /* boot up the VCPU */ WREG32(UVD_SOFT_RESET, 0); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 1a90f0a2f7e5..0508f93b9795 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -740,9 +740,17 @@ static void vmw_postclose(struct drm_device *dev, struct vmw_fpriv *vmw_fp; vmw_fp = vmw_fpriv(file_priv); - ttm_object_file_release(&vmw_fp->tfile); - if (vmw_fp->locked_master) + + if (vmw_fp->locked_master) { + struct vmw_master *vmaster = + vmw_master(vmw_fp->locked_master); + + ttm_lock_set_kill(&vmaster->lock, true, SIGTERM); + ttm_vt_unlock(&vmaster->lock); drm_master_put(&vmw_fp->locked_master); + } + + ttm_object_file_release(&vmw_fp->tfile); kfree(vmw_fp); } @@ -925,14 +933,13 @@ static void vmw_master_drop(struct drm_device *dev, vmw_fp->locked_master = drm_master_get(file_priv->master); ret = ttm_vt_lock(&vmaster->lock, false, vmw_fp->tfile); - vmw_execbuf_release_pinned_bo(dev_priv); - if (unlikely((ret != 0))) { DRM_ERROR("Unable to lock TTM at VT switch.\n"); drm_master_put(&vmw_fp->locked_master); } - ttm_lock_set_kill(&vmaster->lock, true, SIGTERM); + ttm_lock_set_kill(&vmaster->lock, false, SIGTERM); + vmw_execbuf_release_pinned_bo(dev_priv); if (!dev_priv->enable_fb) { ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index 0e67cf41065d..37fb4befec82 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -970,7 +970,7 @@ void vmw_resource_unreserve(struct vmw_resource *res, if (new_backup) res->backup_offset = new_backup_offset; - if (!res->func->may_evict) + if (!res->func->may_evict || res->id == -1) return; write_lock(&dev_priv->resource_lock); diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 71b70e3a7a71..c91d547191dd 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -241,6 +241,7 @@ config HID_HOLTEK - Sharkoon Drakonia / Perixx MX-2000 gaming mice - Tracer Sniper TRM-503 / NOVA Gaming Slider X200 / Zalman ZM-GM1 + - SHARKOON DarkGlider Gaming mouse config HOLTEK_FF bool "Holtek On Line Grip force feedback support" diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index b8470b1a10fe..e80da62363bc 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -319,7 +319,7 @@ static s32 item_sdata(struct hid_item *item) static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) { - __u32 raw_value; + __s32 raw_value; switch (item->tag) { case HID_GLOBAL_ITEM_TAG_PUSH: @@ -370,10 +370,11 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) return 0; case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT: - /* Units exponent negative numbers are given through a - * two's complement. - * See "6.2.2.7 Global Items" for more information. */ - raw_value = item_udata(item); + /* Many devices provide unit exponent as a two's complement + * nibble due to the common misunderstanding of HID + * specification 1.11, 6.2.2.7 Global Items. Attempt to handle + * both this and the standard encoding. */ + raw_value = item_sdata(item); if (!(raw_value & 0xfffffff0)) parser->global.unit_exponent = hid_snto32(raw_value, 4); else @@ -1715,6 +1716,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) }, { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) }, { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) }, + { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) }, { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) }, { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) }, @@ -1869,6 +1871,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) }, + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO2, USB_DEVICE_ID_NINTENDO_WIIMOTE) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) }, { } }; diff --git a/drivers/hid/hid-holtek-mouse.c b/drivers/hid/hid-holtek-mouse.c index 7e6db3cf46f9..e696566cde46 100644 --- a/drivers/hid/hid-holtek-mouse.c +++ b/drivers/hid/hid-holtek-mouse.c @@ -27,6 +27,7 @@ * - USB ID 04d9:a067, sold as Sharkoon Drakonia and Perixx MX-2000 * - USB ID 04d9:a04a, sold as Tracer Sniper TRM-503, NOVA Gaming Slider X200 * and Zalman ZM-GM1 + * - USB ID 04d9:a081, sold as SHARKOON DarkGlider Gaming mouse */ static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc, @@ -46,6 +47,7 @@ static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc, } break; case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A: + case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081: if (*rsize >= 113 && rdesc[106] == 0xff && rdesc[107] == 0x7f && rdesc[111] == 0xff && rdesc[112] == 0x7f) { hid_info(hdev, "Fixing up report descriptor\n"); @@ -63,6 +65,8 @@ static const struct hid_device_id holtek_mouse_devices[] = { USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) }, { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) }, + { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, + USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) }, { } }; MODULE_DEVICE_TABLE(hid, holtek_mouse_devices); diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index e60e8d530697..f0296a50be5f 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -450,6 +450,7 @@ #define USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD 0xa055 #define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067 0xa067 #define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A 0xa04a +#define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081 0xa081 #define USB_VENDOR_ID_IMATION 0x0718 #define USB_DEVICE_ID_DISC_STAKKA 0xd000 @@ -632,6 +633,7 @@ #define USB_DEVICE_ID_NEXTWINDOW_TOUCHSCREEN 0x0003 #define USB_VENDOR_ID_NINTENDO 0x057e +#define USB_VENDOR_ID_NINTENDO2 0x054c #define USB_DEVICE_ID_NINTENDO_WIIMOTE 0x0306 #define USB_DEVICE_ID_NINTENDO_WIIMOTE2 0x0330 @@ -791,6 +793,8 @@ #define USB_DEVICE_ID_SYNAPTICS_COMP_TP 0x0009 #define USB_DEVICE_ID_SYNAPTICS_WTP 0x0010 #define USB_DEVICE_ID_SYNAPTICS_DPAD 0x0013 +#define USB_DEVICE_ID_SYNAPTICS_LTS1 0x0af8 +#define USB_DEVICE_ID_SYNAPTICS_LTS2 0x1d10 #define USB_VENDOR_ID_THINGM 0x27b8 #define USB_DEVICE_ID_BLINK1 0x01ed @@ -918,4 +922,7 @@ #define USB_VENDOR_ID_PRIMAX 0x0461 #define USB_DEVICE_ID_PRIMAX_KEYBOARD 0x4e05 +#define USB_VENDOR_ID_SIS 0x0457 +#define USB_DEVICE_ID_SIS_TS 0x1013 + #endif diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index 8741d953dcc8..d97f2323af57 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -192,6 +192,7 @@ static int hidinput_setkeycode(struct input_dev *dev, return -EINVAL; } + /** * hidinput_calc_abs_res - calculate an absolute axis resolution * @field: the HID report field to calculate resolution for @@ -234,23 +235,17 @@ __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code) case ABS_MT_TOOL_Y: case ABS_MT_TOUCH_MAJOR: case ABS_MT_TOUCH_MINOR: - if (field->unit & 0xffffff00) /* Not a length */ - return 0; - unit_exponent += hid_snto32(field->unit >> 4, 4) - 1; - switch (field->unit & 0xf) { - case 0x1: /* If centimeters */ + if (field->unit == 0x11) { /* If centimeters */ /* Convert to millimeters */ unit_exponent += 1; - break; - case 0x3: /* If inches */ + } else if (field->unit == 0x13) { /* If inches */ /* Convert to millimeters */ prev = physical_extents; physical_extents *= 254; if (physical_extents < prev) return 0; unit_exponent -= 1; - break; - default: + } else { return 0; } break; diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c index 602c188e9d86..6101816a7ddd 100644 --- a/drivers/hid/hid-roccat-kone.c +++ b/drivers/hid/hid-roccat-kone.c @@ -382,7 +382,7 @@ static ssize_t kone_sysfs_write_profilex(struct file *fp, } #define PROFILE_ATTR(number) \ static struct bin_attribute bin_attr_profile##number = { \ - .attr = { .name = "profile##number", .mode = 0660 }, \ + .attr = { .name = "profile" #number, .mode = 0660 }, \ .size = sizeof(struct kone_profile), \ .read = kone_sysfs_read_profilex, \ .write = kone_sysfs_write_profilex, \ diff --git a/drivers/hid/hid-roccat-koneplus.c b/drivers/hid/hid-roccat-koneplus.c index 5ddf605b6b89..5e99fcdc71b9 100644 --- a/drivers/hid/hid-roccat-koneplus.c +++ b/drivers/hid/hid-roccat-koneplus.c @@ -229,13 +229,13 @@ static ssize_t koneplus_sysfs_read_profilex_buttons(struct file *fp, #define PROFILE_ATTR(number) \ static struct bin_attribute bin_attr_profile##number##_settings = { \ - .attr = { .name = "profile##number##_settings", .mode = 0440 }, \ + .attr = { .name = "profile" #number "_settings", .mode = 0440 }, \ .size = KONEPLUS_SIZE_PROFILE_SETTINGS, \ .read = koneplus_sysfs_read_profilex_settings, \ .private = &profile_numbers[number-1], \ }; \ static struct bin_attribute bin_attr_profile##number##_buttons = { \ - .attr = { .name = "profile##number##_buttons", .mode = 0440 }, \ + .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \ .size = KONEPLUS_SIZE_PROFILE_BUTTONS, \ .read = koneplus_sysfs_read_profilex_buttons, \ .private = &profile_numbers[number-1], \ diff --git a/drivers/hid/hid-roccat-kovaplus.c b/drivers/hid/hid-roccat-kovaplus.c index 515bc03136c0..0c8e1ef0b67d 100644 --- a/drivers/hid/hid-roccat-kovaplus.c +++ b/drivers/hid/hid-roccat-kovaplus.c @@ -257,13 +257,13 @@ static ssize_t kovaplus_sysfs_read_profilex_buttons(struct file *fp, #define PROFILE_ATTR(number) \ static struct bin_attribute bin_attr_profile##number##_settings = { \ - .attr = { .name = "profile##number##_settings", .mode = 0440 }, \ + .attr = { .name = "profile" #number "_settings", .mode = 0440 }, \ .size = KOVAPLUS_SIZE_PROFILE_SETTINGS, \ .read = kovaplus_sysfs_read_profilex_settings, \ .private = &profile_numbers[number-1], \ }; \ static struct bin_attribute bin_attr_profile##number##_buttons = { \ - .attr = { .name = "profile##number##_buttons", .mode = 0440 }, \ + .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \ .size = KOVAPLUS_SIZE_PROFILE_BUTTONS, \ .read = kovaplus_sysfs_read_profilex_buttons, \ .private = &profile_numbers[number-1], \ diff --git a/drivers/hid/hid-roccat-pyra.c b/drivers/hid/hid-roccat-pyra.c index 5a6dbbeee790..1a07e07d99a0 100644 --- a/drivers/hid/hid-roccat-pyra.c +++ b/drivers/hid/hid-roccat-pyra.c @@ -225,13 +225,13 @@ static ssize_t pyra_sysfs_read_profilex_buttons(struct file *fp, #define PROFILE_ATTR(number) \ static struct bin_attribute bin_attr_profile##number##_settings = { \ - .attr = { .name = "profile##number##_settings", .mode = 0440 }, \ + .attr = { .name = "profile" #number "_settings", .mode = 0440 }, \ .size = PYRA_SIZE_PROFILE_SETTINGS, \ .read = pyra_sysfs_read_profilex_settings, \ .private = &profile_numbers[number-1], \ }; \ static struct bin_attribute bin_attr_profile##number##_buttons = { \ - .attr = { .name = "profile##number##_buttons", .mode = 0440 }, \ + .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \ .size = PYRA_SIZE_PROFILE_BUTTONS, \ .read = pyra_sysfs_read_profilex_buttons, \ .private = &profile_numbers[number-1], \ diff --git a/drivers/hid/hid-wiimote-core.c b/drivers/hid/hid-wiimote-core.c index abb20db2b443..1446f526ee8b 100644 --- a/drivers/hid/hid-wiimote-core.c +++ b/drivers/hid/hid-wiimote-core.c @@ -834,7 +834,8 @@ static void wiimote_init_set_type(struct wiimote_data *wdata, goto done; } - if (vendor == USB_VENDOR_ID_NINTENDO) { + if (vendor == USB_VENDOR_ID_NINTENDO || + vendor == USB_VENDOR_ID_NINTENDO2) { if (product == USB_DEVICE_ID_NINTENDO_WIIMOTE) { devtype = WIIMOTE_DEV_GEN10; goto done; @@ -1855,6 +1856,8 @@ static void wiimote_hid_remove(struct hid_device *hdev) static const struct hid_device_id wiimote_hid_devices[] = { { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) }, + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO2, + USB_DEVICE_ID_NINTENDO_WIIMOTE) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) }, { } diff --git a/drivers/hid/hid-wiimote-modules.c b/drivers/hid/hid-wiimote-modules.c index 2e7d644dba18..71adf9e60b13 100644 --- a/drivers/hid/hid-wiimote-modules.c +++ b/drivers/hid/hid-wiimote-modules.c @@ -119,12 +119,22 @@ static const struct wiimod_ops wiimod_keys = { * the rumble motor, this flag shouldn't be set. */ +/* used by wiimod_rumble and wiipro_rumble */ +static void wiimod_rumble_worker(struct work_struct *work) +{ + struct wiimote_data *wdata = container_of(work, struct wiimote_data, + rumble_worker); + + spin_lock_irq(&wdata->state.lock); + wiiproto_req_rumble(wdata, wdata->state.cache_rumble); + spin_unlock_irq(&wdata->state.lock); +} + static int wiimod_rumble_play(struct input_dev *dev, void *data, struct ff_effect *eff) { struct wiimote_data *wdata = input_get_drvdata(dev); __u8 value; - unsigned long flags; /* * The wiimote supports only a single rumble motor so if any magnitude @@ -137,9 +147,10 @@ static int wiimod_rumble_play(struct input_dev *dev, void *data, else value = 0; - spin_lock_irqsave(&wdata->state.lock, flags); - wiiproto_req_rumble(wdata, value); - spin_unlock_irqrestore(&wdata->state.lock, flags); + /* Locking state.lock here might deadlock with input_event() calls. + * schedule_work acts as barrier. Merging multiple changes is fine. */ + wdata->state.cache_rumble = value; + schedule_work(&wdata->rumble_worker); return 0; } @@ -147,6 +158,8 @@ static int wiimod_rumble_play(struct input_dev *dev, void *data, static int wiimod_rumble_probe(const struct wiimod_ops *ops, struct wiimote_data *wdata) { + INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker); + set_bit(FF_RUMBLE, wdata->input->ffbit); if (input_ff_create_memless(wdata->input, NULL, wiimod_rumble_play)) return -ENOMEM; @@ -159,6 +172,8 @@ static void wiimod_rumble_remove(const struct wiimod_ops *ops, { unsigned long flags; + cancel_work_sync(&wdata->rumble_worker); + spin_lock_irqsave(&wdata->state.lock, flags); wiiproto_req_rumble(wdata, 0); spin_unlock_irqrestore(&wdata->state.lock, flags); @@ -1731,7 +1746,6 @@ static int wiimod_pro_play(struct input_dev *dev, void *data, { struct wiimote_data *wdata = input_get_drvdata(dev); __u8 value; - unsigned long flags; /* * The wiimote supports only a single rumble motor so if any magnitude @@ -1744,9 +1758,10 @@ static int wiimod_pro_play(struct input_dev *dev, void *data, else value = 0; - spin_lock_irqsave(&wdata->state.lock, flags); - wiiproto_req_rumble(wdata, value); - spin_unlock_irqrestore(&wdata->state.lock, flags); + /* Locking state.lock here might deadlock with input_event() calls. + * schedule_work acts as barrier. Merging multiple changes is fine. */ + wdata->state.cache_rumble = value; + schedule_work(&wdata->rumble_worker); return 0; } @@ -1756,6 +1771,8 @@ static int wiimod_pro_probe(const struct wiimod_ops *ops, { int ret, i; + INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker); + wdata->extension.input = input_allocate_device(); if (!wdata->extension.input) return -ENOMEM; @@ -1817,12 +1834,13 @@ static void wiimod_pro_remove(const struct wiimod_ops *ops, if (!wdata->extension.input) return; + input_unregister_device(wdata->extension.input); + wdata->extension.input = NULL; + cancel_work_sync(&wdata->rumble_worker); + spin_lock_irqsave(&wdata->state.lock, flags); wiiproto_req_rumble(wdata, 0); spin_unlock_irqrestore(&wdata->state.lock, flags); - - input_unregister_device(wdata->extension.input); - wdata->extension.input = NULL; } static const struct wiimod_ops wiimod_pro = { diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h index f1474f372c0b..75db0c400037 100644 --- a/drivers/hid/hid-wiimote.h +++ b/drivers/hid/hid-wiimote.h @@ -133,13 +133,15 @@ struct wiimote_state { __u8 *cmd_read_buf; __u8 cmd_read_size; - /* calibration data */ + /* calibration/cache data */ __u16 calib_bboard[4][3]; + __u8 cache_rumble; }; struct wiimote_data { struct hid_device *hdev; struct input_dev *input; + struct work_struct rumble_worker; struct led_classdev *leds[4]; struct input_dev *accel; struct input_dev *ir; diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index 8918dd12bb69..6a6dd5cd7833 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c @@ -308,18 +308,25 @@ static int hidraw_fasync(int fd, struct file *file, int on) static void drop_ref(struct hidraw *hidraw, int exists_bit) { if (exists_bit) { - hid_hw_close(hidraw->hid); hidraw->exist = 0; - if (hidraw->open) + if (hidraw->open) { + hid_hw_close(hidraw->hid); wake_up_interruptible(&hidraw->wait); + } } else { --hidraw->open; } - - if (!hidraw->open && !hidraw->exist) { - device_destroy(hidraw_class, MKDEV(hidraw_major, hidraw->minor)); - hidraw_table[hidraw->minor] = NULL; - kfree(hidraw); + if (!hidraw->open) { + if (!hidraw->exist) { + device_destroy(hidraw_class, + MKDEV(hidraw_major, hidraw->minor)); + hidraw_table[hidraw->minor] = NULL; + kfree(hidraw); + } else { + /* close device for last reader */ + hid_hw_power(hidraw->hid, PM_HINT_NORMAL); + hid_hw_close(hidraw->hid); + } } } diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c index 5bf2fb785844..93b00d76374c 100644 --- a/drivers/hid/uhid.c +++ b/drivers/hid/uhid.c @@ -615,7 +615,7 @@ static const struct file_operations uhid_fops = { static struct miscdevice uhid_misc = { .fops = &uhid_fops, - .minor = MISC_DYNAMIC_MINOR, + .minor = UHID_MINOR, .name = UHID_NAME, }; @@ -634,4 +634,5 @@ module_exit(uhid_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>"); MODULE_DESCRIPTION("User-space I/O driver support for HID subsystem"); +MODULE_ALIAS_MISCDEV(UHID_MINOR); MODULE_ALIAS("devname:" UHID_NAME); diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c index 07345521f421..3fca3be08337 100644 --- a/drivers/hid/usbhid/hid-quirks.c +++ b/drivers/hid/usbhid/hid-quirks.c @@ -110,6 +110,9 @@ static const struct hid_blacklist { { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X, HID_QUIRK_MULTI_INPUT }, { USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X, HID_QUIRK_MULTI_INPUT }, { USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_DUOSENSE, HID_QUIRK_NO_INIT_REPORTS }, + { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS1, HID_QUIRK_NO_INIT_REPORTS }, + { USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_LTS2, HID_QUIRK_NO_INIT_REPORTS }, + { USB_VENDOR_ID_SIS, USB_DEVICE_ID_SIS_TS, HID_QUIRK_NO_INIT_REPORTS }, { 0, 0 } }; diff --git a/drivers/hsi/hsi.c b/drivers/hsi/hsi.c index 66d44581e1b1..749f7b5c8179 100644 --- a/drivers/hsi/hsi.c +++ b/drivers/hsi/hsi.c @@ -33,11 +33,13 @@ static ssize_t modalias_show(struct device *dev, { return sprintf(buf, "hsi:%s\n", dev_name(dev)); } +static DEVICE_ATTR_RO(modalias); -static struct device_attribute hsi_bus_dev_attrs[] = { - __ATTR_RO(modalias), - __ATTR_NULL, +static struct attribute *hsi_bus_dev_attrs[] = { + &dev_attr_modalias.attr, + NULL, }; +ATTRIBUTE_GROUPS(hsi_bus_dev); static int hsi_bus_uevent(struct device *dev, struct kobj_uevent_env *env) { @@ -53,7 +55,7 @@ static int hsi_bus_match(struct device *dev, struct device_driver *driver) static struct bus_type hsi_bus_type = { .name = "hsi", - .dev_attrs = hsi_bus_dev_attrs, + .dev_groups = hsi_bus_dev_groups, .match = hsi_bus_match, .uevent = hsi_bus_uevent, }; diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index 6de6c98ce6eb..cea623c36ae2 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -47,8 +47,8 @@ static void vmbus_setevent(struct vmbus_channel *channel) (unsigned long *) vmbus_connection.send_int_page + (channel->offermsg.child_relid >> 5)); - monitorpage = vmbus_connection.monitor_pages; - monitorpage++; /* Get the child to parent monitor page */ + /* Get the child to parent monitor page */ + monitorpage = vmbus_connection.monitor_pages[1]; sync_set_bit(channel->monitor_bit, (unsigned long *)&monitorpage->trigger_group @@ -60,50 +60,6 @@ static void vmbus_setevent(struct vmbus_channel *channel) } /* - * vmbus_get_debug_info -Retrieve various channel debug info - */ -void vmbus_get_debug_info(struct vmbus_channel *channel, - struct vmbus_channel_debug_info *debuginfo) -{ - struct hv_monitor_page *monitorpage; - u8 monitor_group = (u8)channel->offermsg.monitorid / 32; - u8 monitor_offset = (u8)channel->offermsg.monitorid % 32; - - debuginfo->relid = channel->offermsg.child_relid; - debuginfo->state = channel->state; - memcpy(&debuginfo->interfacetype, - &channel->offermsg.offer.if_type, sizeof(uuid_le)); - memcpy(&debuginfo->interface_instance, - &channel->offermsg.offer.if_instance, - sizeof(uuid_le)); - - monitorpage = (struct hv_monitor_page *)vmbus_connection.monitor_pages; - - debuginfo->monitorid = channel->offermsg.monitorid; - - debuginfo->servermonitor_pending = - monitorpage->trigger_group[monitor_group].pending; - debuginfo->servermonitor_latency = - monitorpage->latency[monitor_group][monitor_offset]; - debuginfo->servermonitor_connectionid = - monitorpage->parameter[monitor_group] - [monitor_offset].connectionid.u.id; - - monitorpage++; - - debuginfo->clientmonitor_pending = - monitorpage->trigger_group[monitor_group].pending; - debuginfo->clientmonitor_latency = - monitorpage->latency[monitor_group][monitor_offset]; - debuginfo->clientmonitor_connectionid = - monitorpage->parameter[monitor_group] - [monitor_offset].connectionid.u.id; - - hv_ringbuffer_get_debuginfo(&channel->inbound, &debuginfo->inbound); - hv_ringbuffer_get_debuginfo(&channel->outbound, &debuginfo->outbound); -} - -/* * vmbus_open - Open the specified channel. */ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, @@ -855,6 +811,6 @@ int vmbus_recvpacket_raw(struct vmbus_channel *channel, void *buffer, if (signal) vmbus_setevent(channel); - return 0; + return ret; } EXPORT_SYMBOL_GPL(vmbus_recvpacket_raw); diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index bbff5f200bef..fa920469bf10 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -203,7 +203,8 @@ static void vmbus_process_rescind_offer(struct work_struct *work) struct vmbus_channel *primary_channel; struct vmbus_channel_relid_released msg; - vmbus_device_unregister(channel->device_obj); + if (channel->device_obj) + vmbus_device_unregister(channel->device_obj); memset(&msg, 0, sizeof(struct vmbus_channel_relid_released)); msg.child_relid = channel->offermsg.child_relid; msg.header.msgtype = CHANNELMSG_RELID_RELEASED; @@ -216,7 +217,7 @@ static void vmbus_process_rescind_offer(struct work_struct *work) } else { primary_channel = channel->primary_channel; spin_lock_irqsave(&primary_channel->sc_lock, flags); - list_del(&channel->listentry); + list_del(&channel->sc_list); spin_unlock_irqrestore(&primary_channel->sc_lock, flags); } free_channel(channel); diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c index 936093e0271e..af6edf9b1936 100644 --- a/drivers/hv/connection.c +++ b/drivers/hv/connection.c @@ -76,10 +76,8 @@ static int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo, msg->header.msgtype = CHANNELMSG_INITIATE_CONTACT; msg->vmbus_version_requested = version; msg->interrupt_page = virt_to_phys(vmbus_connection.int_page); - msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages); - msg->monitor_page2 = virt_to_phys( - (void *)((unsigned long)vmbus_connection.monitor_pages + - PAGE_SIZE)); + msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages[0]); + msg->monitor_page2 = virt_to_phys(vmbus_connection.monitor_pages[1]); /* * Add to list before we send the request since we may @@ -169,9 +167,10 @@ int vmbus_connect(void) * Setup the monitor notification facility. The 1st page for * parent->child and the 2nd page for child->parent */ - vmbus_connection.monitor_pages = - (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 1); - if (vmbus_connection.monitor_pages == NULL) { + vmbus_connection.monitor_pages[0] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0); + vmbus_connection.monitor_pages[1] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0); + if ((vmbus_connection.monitor_pages[0] == NULL) || + (vmbus_connection.monitor_pages[1] == NULL)) { ret = -ENOMEM; goto cleanup; } @@ -229,10 +228,10 @@ cleanup: vmbus_connection.int_page = NULL; } - if (vmbus_connection.monitor_pages) { - free_pages((unsigned long)vmbus_connection.monitor_pages, 1); - vmbus_connection.monitor_pages = NULL; - } + free_pages((unsigned long)vmbus_connection.monitor_pages[0], 1); + free_pages((unsigned long)vmbus_connection.monitor_pages[1], 1); + vmbus_connection.monitor_pages[0] = NULL; + vmbus_connection.monitor_pages[1] = NULL; kfree(msginfo); diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index 88f4096fa078..f0c5e07c25ec 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -304,7 +304,7 @@ err: void hv_synic_free_cpu(int cpu) { kfree(hv_context.event_dpc[cpu]); - if (hv_context.synic_message_page[cpu]) + if (hv_context.synic_event_page[cpu]) free_page((unsigned long)hv_context.synic_event_page[cpu]); if (hv_context.synic_message_page[cpu]) free_page((unsigned long)hv_context.synic_message_page[cpu]); diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c index 273e3ddb3a20..62dfd246b948 100644 --- a/drivers/hv/hv_util.c +++ b/drivers/hv/hv_util.c @@ -97,7 +97,7 @@ static void shutdown_onchannelcallback(void *context) struct vmbus_channel *channel = context; u32 recvlen; u64 requestid; - u8 execute_shutdown = false; + bool execute_shutdown = false; u8 *shut_txf_buf = util_shutdown.recv_buffer; struct shutdown_msg_data *shutdown_msg; diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h index d84918fe19ab..e05517616a06 100644 --- a/drivers/hv/hyperv_vmbus.h +++ b/drivers/hv/hyperv_vmbus.h @@ -514,6 +514,13 @@ struct hv_context { extern struct hv_context hv_context; +struct hv_ring_buffer_debug_info { + u32 current_interrupt_mask; + u32 current_read_index; + u32 current_write_index; + u32 bytes_avail_toread; + u32 bytes_avail_towrite; +}; /* Hv Interface */ @@ -612,7 +619,7 @@ struct vmbus_connection { * 2 pages - 1st page for parent->child notification and 2nd * is child->parent notification */ - void *monitor_pages; + struct hv_monitor_page *monitor_pages[2]; struct list_head chn_msg_list; spinlock_t channelmsg_lock; diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index f9fe46f52cfa..48aad4faea06 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -46,24 +46,6 @@ static struct tasklet_struct msg_dpc; static struct completion probe_event; static int irq; -struct hv_device_info { - u32 chn_id; - u32 chn_state; - uuid_le chn_type; - uuid_le chn_instance; - - u32 monitor_id; - u32 server_monitor_pending; - u32 server_monitor_latency; - u32 server_monitor_conn_id; - u32 client_monitor_pending; - u32 client_monitor_latency; - u32 client_monitor_conn_id; - - struct hv_dev_port_info inbound; - struct hv_dev_port_info outbound; -}; - static int vmbus_exists(void) { if (hv_acpi_dev == NULL) @@ -72,169 +54,361 @@ static int vmbus_exists(void) return 0; } +#define VMBUS_ALIAS_LEN ((sizeof((struct hv_vmbus_device_id *)0)->guid) * 2) +static void print_alias_name(struct hv_device *hv_dev, char *alias_name) +{ + int i; + for (i = 0; i < VMBUS_ALIAS_LEN; i += 2) + sprintf(&alias_name[i], "%02x", hv_dev->dev_type.b[i/2]); +} -static void get_channel_info(struct hv_device *device, - struct hv_device_info *info) +static u8 channel_monitor_group(struct vmbus_channel *channel) { - struct vmbus_channel_debug_info debug_info; + return (u8)channel->offermsg.monitorid / 32; +} - if (!device->channel) - return; +static u8 channel_monitor_offset(struct vmbus_channel *channel) +{ + return (u8)channel->offermsg.monitorid % 32; +} - vmbus_get_debug_info(device->channel, &debug_info); +static u32 channel_pending(struct vmbus_channel *channel, + struct hv_monitor_page *monitor_page) +{ + u8 monitor_group = channel_monitor_group(channel); + return monitor_page->trigger_group[monitor_group].pending; +} - info->chn_id = debug_info.relid; - info->chn_state = debug_info.state; - memcpy(&info->chn_type, &debug_info.interfacetype, - sizeof(uuid_le)); - memcpy(&info->chn_instance, &debug_info.interface_instance, - sizeof(uuid_le)); +static u32 channel_latency(struct vmbus_channel *channel, + struct hv_monitor_page *monitor_page) +{ + u8 monitor_group = channel_monitor_group(channel); + u8 monitor_offset = channel_monitor_offset(channel); + return monitor_page->latency[monitor_group][monitor_offset]; +} - info->monitor_id = debug_info.monitorid; +static u32 channel_conn_id(struct vmbus_channel *channel, + struct hv_monitor_page *monitor_page) +{ + u8 monitor_group = channel_monitor_group(channel); + u8 monitor_offset = channel_monitor_offset(channel); + return monitor_page->parameter[monitor_group][monitor_offset].connectionid.u.id; +} - info->server_monitor_pending = debug_info.servermonitor_pending; - info->server_monitor_latency = debug_info.servermonitor_latency; - info->server_monitor_conn_id = debug_info.servermonitor_connectionid; +static ssize_t id_show(struct device *dev, struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); - info->client_monitor_pending = debug_info.clientmonitor_pending; - info->client_monitor_latency = debug_info.clientmonitor_latency; - info->client_monitor_conn_id = debug_info.clientmonitor_connectionid; + if (!hv_dev->channel) + return -ENODEV; + return sprintf(buf, "%d\n", hv_dev->channel->offermsg.child_relid); +} +static DEVICE_ATTR_RO(id); - info->inbound.int_mask = debug_info.inbound.current_interrupt_mask; - info->inbound.read_idx = debug_info.inbound.current_read_index; - info->inbound.write_idx = debug_info.inbound.current_write_index; - info->inbound.bytes_avail_toread = - debug_info.inbound.bytes_avail_toread; - info->inbound.bytes_avail_towrite = - debug_info.inbound.bytes_avail_towrite; +static ssize_t state_show(struct device *dev, struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); - info->outbound.int_mask = - debug_info.outbound.current_interrupt_mask; - info->outbound.read_idx = debug_info.outbound.current_read_index; - info->outbound.write_idx = debug_info.outbound.current_write_index; - info->outbound.bytes_avail_toread = - debug_info.outbound.bytes_avail_toread; - info->outbound.bytes_avail_towrite = - debug_info.outbound.bytes_avail_towrite; + if (!hv_dev->channel) + return -ENODEV; + return sprintf(buf, "%d\n", hv_dev->channel->state); } +static DEVICE_ATTR_RO(state); -#define VMBUS_ALIAS_LEN ((sizeof((struct hv_vmbus_device_id *)0)->guid) * 2) -static void print_alias_name(struct hv_device *hv_dev, char *alias_name) +static ssize_t monitor_id_show(struct device *dev, + struct device_attribute *dev_attr, char *buf) { - int i; - for (i = 0; i < VMBUS_ALIAS_LEN; i += 2) - sprintf(&alias_name[i], "%02x", hv_dev->dev_type.b[i/2]); + struct hv_device *hv_dev = device_to_hv_device(dev); + + if (!hv_dev->channel) + return -ENODEV; + return sprintf(buf, "%d\n", hv_dev->channel->offermsg.monitorid); } +static DEVICE_ATTR_RO(monitor_id); -/* - * vmbus_show_device_attr - Show the device attribute in sysfs. - * - * This is invoked when user does a - * "cat /sys/bus/vmbus/devices/<busdevice>/<attr name>" - */ -static ssize_t vmbus_show_device_attr(struct device *dev, - struct device_attribute *dev_attr, - char *buf) +static ssize_t class_id_show(struct device *dev, + struct device_attribute *dev_attr, char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + + if (!hv_dev->channel) + return -ENODEV; + return sprintf(buf, "{%pUl}\n", + hv_dev->channel->offermsg.offer.if_type.b); +} +static DEVICE_ATTR_RO(class_id); + +static ssize_t device_id_show(struct device *dev, + struct device_attribute *dev_attr, char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + + if (!hv_dev->channel) + return -ENODEV; + return sprintf(buf, "{%pUl}\n", + hv_dev->channel->offermsg.offer.if_instance.b); +} +static DEVICE_ATTR_RO(device_id); + +static ssize_t modalias_show(struct device *dev, + struct device_attribute *dev_attr, char *buf) { struct hv_device *hv_dev = device_to_hv_device(dev); - struct hv_device_info *device_info; char alias_name[VMBUS_ALIAS_LEN + 1]; - int ret = 0; - device_info = kzalloc(sizeof(struct hv_device_info), GFP_KERNEL); - if (!device_info) - return ret; + print_alias_name(hv_dev, alias_name); + return sprintf(buf, "vmbus:%s\n", alias_name); +} +static DEVICE_ATTR_RO(modalias); - get_channel_info(hv_dev, device_info); - - if (!strcmp(dev_attr->attr.name, "class_id")) { - ret = sprintf(buf, "{%pUl}\n", device_info->chn_type.b); - } else if (!strcmp(dev_attr->attr.name, "device_id")) { - ret = sprintf(buf, "{%pUl}\n", device_info->chn_instance.b); - } else if (!strcmp(dev_attr->attr.name, "modalias")) { - print_alias_name(hv_dev, alias_name); - ret = sprintf(buf, "vmbus:%s\n", alias_name); - } else if (!strcmp(dev_attr->attr.name, "state")) { - ret = sprintf(buf, "%d\n", device_info->chn_state); - } else if (!strcmp(dev_attr->attr.name, "id")) { - ret = sprintf(buf, "%d\n", device_info->chn_id); - } else if (!strcmp(dev_attr->attr.name, "out_intr_mask")) { - ret = sprintf(buf, "%d\n", device_info->outbound.int_mask); - } else if (!strcmp(dev_attr->attr.name, "out_read_index")) { - ret = sprintf(buf, "%d\n", device_info->outbound.read_idx); - } else if (!strcmp(dev_attr->attr.name, "out_write_index")) { - ret = sprintf(buf, "%d\n", device_info->outbound.write_idx); - } else if (!strcmp(dev_attr->attr.name, "out_read_bytes_avail")) { - ret = sprintf(buf, "%d\n", - device_info->outbound.bytes_avail_toread); - } else if (!strcmp(dev_attr->attr.name, "out_write_bytes_avail")) { - ret = sprintf(buf, "%d\n", - device_info->outbound.bytes_avail_towrite); - } else if (!strcmp(dev_attr->attr.name, "in_intr_mask")) { - ret = sprintf(buf, "%d\n", device_info->inbound.int_mask); - } else if (!strcmp(dev_attr->attr.name, "in_read_index")) { - ret = sprintf(buf, "%d\n", device_info->inbound.read_idx); - } else if (!strcmp(dev_attr->attr.name, "in_write_index")) { - ret = sprintf(buf, "%d\n", device_info->inbound.write_idx); - } else if (!strcmp(dev_attr->attr.name, "in_read_bytes_avail")) { - ret = sprintf(buf, "%d\n", - device_info->inbound.bytes_avail_toread); - } else if (!strcmp(dev_attr->attr.name, "in_write_bytes_avail")) { - ret = sprintf(buf, "%d\n", - device_info->inbound.bytes_avail_towrite); - } else if (!strcmp(dev_attr->attr.name, "monitor_id")) { - ret = sprintf(buf, "%d\n", device_info->monitor_id); - } else if (!strcmp(dev_attr->attr.name, "server_monitor_pending")) { - ret = sprintf(buf, "%d\n", device_info->server_monitor_pending); - } else if (!strcmp(dev_attr->attr.name, "server_monitor_latency")) { - ret = sprintf(buf, "%d\n", device_info->server_monitor_latency); - } else if (!strcmp(dev_attr->attr.name, "server_monitor_conn_id")) { - ret = sprintf(buf, "%d\n", - device_info->server_monitor_conn_id); - } else if (!strcmp(dev_attr->attr.name, "client_monitor_pending")) { - ret = sprintf(buf, "%d\n", device_info->client_monitor_pending); - } else if (!strcmp(dev_attr->attr.name, "client_monitor_latency")) { - ret = sprintf(buf, "%d\n", device_info->client_monitor_latency); - } else if (!strcmp(dev_attr->attr.name, "client_monitor_conn_id")) { - ret = sprintf(buf, "%d\n", - device_info->client_monitor_conn_id); - } +static ssize_t server_monitor_pending_show(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); - kfree(device_info); - return ret; + if (!hv_dev->channel) + return -ENODEV; + return sprintf(buf, "%d\n", + channel_pending(hv_dev->channel, + vmbus_connection.monitor_pages[1])); +} +static DEVICE_ATTR_RO(server_monitor_pending); + +static ssize_t client_monitor_pending_show(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + + if (!hv_dev->channel) + return -ENODEV; + return sprintf(buf, "%d\n", + channel_pending(hv_dev->channel, + vmbus_connection.monitor_pages[1])); +} +static DEVICE_ATTR_RO(client_monitor_pending); + +static ssize_t server_monitor_latency_show(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + + if (!hv_dev->channel) + return -ENODEV; + return sprintf(buf, "%d\n", + channel_latency(hv_dev->channel, + vmbus_connection.monitor_pages[0])); +} +static DEVICE_ATTR_RO(server_monitor_latency); + +static ssize_t client_monitor_latency_show(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + + if (!hv_dev->channel) + return -ENODEV; + return sprintf(buf, "%d\n", + channel_latency(hv_dev->channel, + vmbus_connection.monitor_pages[1])); +} +static DEVICE_ATTR_RO(client_monitor_latency); + +static ssize_t server_monitor_conn_id_show(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + + if (!hv_dev->channel) + return -ENODEV; + return sprintf(buf, "%d\n", + channel_conn_id(hv_dev->channel, + vmbus_connection.monitor_pages[0])); +} +static DEVICE_ATTR_RO(server_monitor_conn_id); + +static ssize_t client_monitor_conn_id_show(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + + if (!hv_dev->channel) + return -ENODEV; + return sprintf(buf, "%d\n", + channel_conn_id(hv_dev->channel, + vmbus_connection.monitor_pages[1])); +} +static DEVICE_ATTR_RO(client_monitor_conn_id); + +static ssize_t out_intr_mask_show(struct device *dev, + struct device_attribute *dev_attr, char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + struct hv_ring_buffer_debug_info outbound; + + if (!hv_dev->channel) + return -ENODEV; + hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); + return sprintf(buf, "%d\n", outbound.current_interrupt_mask); +} +static DEVICE_ATTR_RO(out_intr_mask); + +static ssize_t out_read_index_show(struct device *dev, + struct device_attribute *dev_attr, char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + struct hv_ring_buffer_debug_info outbound; + + if (!hv_dev->channel) + return -ENODEV; + hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); + return sprintf(buf, "%d\n", outbound.current_read_index); +} +static DEVICE_ATTR_RO(out_read_index); + +static ssize_t out_write_index_show(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + struct hv_ring_buffer_debug_info outbound; + + if (!hv_dev->channel) + return -ENODEV; + hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); + return sprintf(buf, "%d\n", outbound.current_write_index); +} +static DEVICE_ATTR_RO(out_write_index); + +static ssize_t out_read_bytes_avail_show(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + struct hv_ring_buffer_debug_info outbound; + + if (!hv_dev->channel) + return -ENODEV; + hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); + return sprintf(buf, "%d\n", outbound.bytes_avail_toread); } +static DEVICE_ATTR_RO(out_read_bytes_avail); + +static ssize_t out_write_bytes_avail_show(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + struct hv_ring_buffer_debug_info outbound; + + if (!hv_dev->channel) + return -ENODEV; + hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound); + return sprintf(buf, "%d\n", outbound.bytes_avail_towrite); +} +static DEVICE_ATTR_RO(out_write_bytes_avail); + +static ssize_t in_intr_mask_show(struct device *dev, + struct device_attribute *dev_attr, char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + struct hv_ring_buffer_debug_info inbound; + + if (!hv_dev->channel) + return -ENODEV; + hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + return sprintf(buf, "%d\n", inbound.current_interrupt_mask); +} +static DEVICE_ATTR_RO(in_intr_mask); + +static ssize_t in_read_index_show(struct device *dev, + struct device_attribute *dev_attr, char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + struct hv_ring_buffer_debug_info inbound; + + if (!hv_dev->channel) + return -ENODEV; + hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + return sprintf(buf, "%d\n", inbound.current_read_index); +} +static DEVICE_ATTR_RO(in_read_index); + +static ssize_t in_write_index_show(struct device *dev, + struct device_attribute *dev_attr, char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + struct hv_ring_buffer_debug_info inbound; + + if (!hv_dev->channel) + return -ENODEV; + hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + return sprintf(buf, "%d\n", inbound.current_write_index); +} +static DEVICE_ATTR_RO(in_write_index); + +static ssize_t in_read_bytes_avail_show(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + struct hv_ring_buffer_debug_info inbound; + + if (!hv_dev->channel) + return -ENODEV; + hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + return sprintf(buf, "%d\n", inbound.bytes_avail_toread); +} +static DEVICE_ATTR_RO(in_read_bytes_avail); + +static ssize_t in_write_bytes_avail_show(struct device *dev, + struct device_attribute *dev_attr, + char *buf) +{ + struct hv_device *hv_dev = device_to_hv_device(dev); + struct hv_ring_buffer_debug_info inbound; + + if (!hv_dev->channel) + return -ENODEV; + hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound); + return sprintf(buf, "%d\n", inbound.bytes_avail_towrite); +} +static DEVICE_ATTR_RO(in_write_bytes_avail); /* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */ -static struct device_attribute vmbus_device_attrs[] = { - __ATTR(id, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(state, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(class_id, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(device_id, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(monitor_id, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(modalias, S_IRUGO, vmbus_show_device_attr, NULL), - - __ATTR(server_monitor_pending, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(server_monitor_latency, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(server_monitor_conn_id, S_IRUGO, vmbus_show_device_attr, NULL), - - __ATTR(client_monitor_pending, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(client_monitor_latency, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(client_monitor_conn_id, S_IRUGO, vmbus_show_device_attr, NULL), - - __ATTR(out_intr_mask, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(out_read_index, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(out_write_index, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(out_read_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(out_write_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL), - - __ATTR(in_intr_mask, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(in_read_index, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(in_write_index, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(in_read_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR(in_write_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL), - __ATTR_NULL +static struct attribute *vmbus_attrs[] = { + &dev_attr_id.attr, + &dev_attr_state.attr, + &dev_attr_monitor_id.attr, + &dev_attr_class_id.attr, + &dev_attr_device_id.attr, + &dev_attr_modalias.attr, + &dev_attr_server_monitor_pending.attr, + &dev_attr_client_monitor_pending.attr, + &dev_attr_server_monitor_latency.attr, + &dev_attr_client_monitor_latency.attr, + &dev_attr_server_monitor_conn_id.attr, + &dev_attr_client_monitor_conn_id.attr, + &dev_attr_out_intr_mask.attr, + &dev_attr_out_read_index.attr, + &dev_attr_out_write_index.attr, + &dev_attr_out_read_bytes_avail.attr, + &dev_attr_out_write_bytes_avail.attr, + &dev_attr_in_intr_mask.attr, + &dev_attr_in_read_index.attr, + &dev_attr_in_write_index.attr, + &dev_attr_in_read_bytes_avail.attr, + &dev_attr_in_write_bytes_avail.attr, + NULL, }; - +ATTRIBUTE_GROUPS(vmbus); /* * vmbus_uevent - add uevent for our device @@ -383,7 +557,7 @@ static struct bus_type hv_bus = { .remove = vmbus_remove, .probe = vmbus_probe, .uevent = vmbus_uevent, - .dev_attrs = vmbus_device_attrs, + .dev_groups = vmbus_groups, }; static const char *driver_name = "hyperv"; diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c index 98814d12a604..3288f13d2d87 100644 --- a/drivers/hwmon/applesmc.c +++ b/drivers/hwmon/applesmc.c @@ -230,6 +230,7 @@ static int send_argument(const char *key) static int read_smc(u8 cmd, const char *key, u8 *buffer, u8 len) { + u8 status, data = 0; int i; if (send_command(cmd) || send_argument(key)) { @@ -237,6 +238,7 @@ static int read_smc(u8 cmd, const char *key, u8 *buffer, u8 len) return -EIO; } + /* This has no effect on newer (2012) SMCs */ if (send_byte(len, APPLESMC_DATA_PORT)) { pr_warn("%.4s: read len fail\n", key); return -EIO; @@ -250,6 +252,17 @@ static int read_smc(u8 cmd, const char *key, u8 *buffer, u8 len) buffer[i] = inb(APPLESMC_DATA_PORT); } + /* Read the data port until bit0 is cleared */ + for (i = 0; i < 16; i++) { + udelay(APPLESMC_MIN_WAIT); + status = inb(APPLESMC_CMD_PORT); + if (!(status & 0x01)) + break; + data = inb(APPLESMC_DATA_PORT); + } + if (i) + pr_warn("flushed %d bytes, last value is: %d\n", i, data); + return 0; } diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 4c1b60539a25..0aa01136f8d9 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -270,7 +270,8 @@ static SIMPLE_DEV_PM_OPS(dw_i2c_dev_pm_ops, dw_i2c_suspend, dw_i2c_resume); MODULE_ALIAS("platform:i2c_designware"); static struct platform_driver dw_i2c_driver = { - .remove = dw_i2c_remove, + .probe = dw_i2c_probe, + .remove = dw_i2c_remove, .driver = { .name = "i2c_designware", .owner = THIS_MODULE, @@ -282,7 +283,7 @@ static struct platform_driver dw_i2c_driver = { static int __init dw_i2c_init_driver(void) { - return platform_driver_probe(&dw_i2c_driver, dw_i2c_probe); + return platform_driver_register(&dw_i2c_driver); } subsys_initcall(dw_i2c_init_driver); diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index ccf46656bdad..1d7efa3169cd 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -365,7 +365,7 @@ static void i2c_imx_stop(struct imx_i2c_struct *i2c_imx) clk_disable_unprepare(i2c_imx->clk); } -static void __init i2c_imx_set_clk(struct imx_i2c_struct *i2c_imx, +static void i2c_imx_set_clk(struct imx_i2c_struct *i2c_imx, unsigned int rate) { struct imx_i2c_clk_pair *i2c_clk_div = i2c_imx->hwdata->clk_div; @@ -589,7 +589,7 @@ static struct i2c_algorithm i2c_imx_algo = { .functionality = i2c_imx_func, }; -static int __init i2c_imx_probe(struct platform_device *pdev) +static int i2c_imx_probe(struct platform_device *pdev) { const struct of_device_id *of_id = of_match_device(i2c_imx_dt_ids, &pdev->dev); @@ -697,7 +697,7 @@ static int __init i2c_imx_probe(struct platform_device *pdev) return 0; /* Return OK */ } -static int __exit i2c_imx_remove(struct platform_device *pdev) +static int i2c_imx_remove(struct platform_device *pdev) { struct imx_i2c_struct *i2c_imx = platform_get_drvdata(pdev); @@ -715,7 +715,8 @@ static int __exit i2c_imx_remove(struct platform_device *pdev) } static struct platform_driver i2c_imx_driver = { - .remove = __exit_p(i2c_imx_remove), + .probe = i2c_imx_probe, + .remove = i2c_imx_remove, .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, @@ -726,7 +727,7 @@ static struct platform_driver i2c_imx_driver = { static int __init i2c_adap_imx_init(void) { - return platform_driver_probe(&i2c_imx_driver, i2c_imx_probe); + return platform_driver_register(&i2c_imx_driver); } subsys_initcall(i2c_adap_imx_init); diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c index f4a01675fa71..b7c857774708 100644 --- a/drivers/i2c/busses/i2c-mxs.c +++ b/drivers/i2c/busses/i2c-mxs.c @@ -780,12 +780,13 @@ static struct platform_driver mxs_i2c_driver = { .owner = THIS_MODULE, .of_match_table = mxs_i2c_dt_ids, }, + .probe = mxs_i2c_probe, .remove = mxs_i2c_remove, }; static int __init mxs_i2c_init(void) { - return platform_driver_probe(&mxs_i2c_driver, mxs_i2c_probe); + return platform_driver_register(&mxs_i2c_driver); } subsys_initcall(mxs_i2c_init); diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 6d8308d5dc4e..9967a6f9c2ff 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -939,6 +939,9 @@ omap_i2c_isr_thread(int this_irq, void *dev_id) /* * ProDB0017052: Clear ARDY bit twice */ + if (stat & OMAP_I2C_STAT_ARDY) + omap_i2c_ack_stat(dev, OMAP_I2C_STAT_ARDY); + if (stat & (OMAP_I2C_STAT_ARDY | OMAP_I2C_STAT_NACK | OMAP_I2C_STAT_AL)) { omap_i2c_ack_stat(dev, (OMAP_I2C_STAT_RRDY | diff --git a/drivers/i2c/busses/i2c-stu300.c b/drivers/i2c/busses/i2c-stu300.c index f8f6f2e552db..04a17b9b38bb 100644 --- a/drivers/i2c/busses/i2c-stu300.c +++ b/drivers/i2c/busses/i2c-stu300.c @@ -859,8 +859,7 @@ static const struct i2c_algorithm stu300_algo = { .functionality = stu300_func, }; -static int __init -stu300_probe(struct platform_device *pdev) +static int stu300_probe(struct platform_device *pdev) { struct stu300_dev *dev; struct i2c_adapter *adap; @@ -966,8 +965,7 @@ static SIMPLE_DEV_PM_OPS(stu300_pm, stu300_suspend, stu300_resume); #define STU300_I2C_PM NULL #endif -static int __exit -stu300_remove(struct platform_device *pdev) +static int stu300_remove(struct platform_device *pdev) { struct stu300_dev *dev = platform_get_drvdata(pdev); @@ -989,13 +987,14 @@ static struct platform_driver stu300_i2c_driver = { .pm = STU300_I2C_PM, .of_match_table = stu300_dt_match, }, - .remove = __exit_p(stu300_remove), + .probe = stu300_probe, + .remove = stu300_remove, }; static int __init stu300_init(void) { - return platform_driver_probe(&stu300_i2c_driver, stu300_probe); + return platform_driver_register(&stu300_i2c_driver); } static void __exit stu300_exit(void) diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 29d3f045a2bf..3be58f89ac77 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1134,6 +1134,9 @@ static void acpi_i2c_register_devices(struct i2c_adapter *adap) acpi_handle handle; acpi_status status; + if (!adap->dev.parent) + return; + handle = ACPI_HANDLE(adap->dev.parent); if (!handle) return; diff --git a/drivers/i2c/muxes/i2c-arb-gpio-challenge.c b/drivers/i2c/muxes/i2c-arb-gpio-challenge.c index 74b41ae690f3..928656e241dd 100644 --- a/drivers/i2c/muxes/i2c-arb-gpio-challenge.c +++ b/drivers/i2c/muxes/i2c-arb-gpio-challenge.c @@ -200,7 +200,7 @@ static int i2c_arbitrator_probe(struct platform_device *pdev) arb->parent = of_find_i2c_adapter_by_node(parent_np); if (!arb->parent) { dev_err(dev, "Cannot find parent bus\n"); - return -EINVAL; + return -EPROBE_DEFER; } /* Actually add the mux adapter */ diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c index 5d4a99ba743e..a764da777f08 100644 --- a/drivers/i2c/muxes/i2c-mux-gpio.c +++ b/drivers/i2c/muxes/i2c-mux-gpio.c @@ -66,7 +66,7 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux, struct device_node *adapter_np, *child; struct i2c_adapter *adapter; unsigned *values, *gpios; - int i = 0; + int i = 0, ret; if (!np) return -ENODEV; @@ -79,7 +79,7 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux, adapter = of_find_i2c_adapter_by_node(adapter_np); if (!adapter) { dev_err(&pdev->dev, "Cannot find parent bus\n"); - return -ENODEV; + return -EPROBE_DEFER; } mux->data.parent = i2c_adapter_id(adapter); put_device(&adapter->dev); @@ -116,8 +116,12 @@ static int i2c_mux_gpio_probe_dt(struct gpiomux *mux, return -ENOMEM; } - for (i = 0; i < mux->data.n_gpios; i++) - gpios[i] = of_get_named_gpio(np, "mux-gpios", i); + for (i = 0; i < mux->data.n_gpios; i++) { + ret = of_get_named_gpio(np, "mux-gpios", i); + if (ret < 0) + return ret; + gpios[i] = ret; + } mux->data.gpios = gpios; @@ -177,7 +181,7 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev) if (!parent) { dev_err(&pdev->dev, "Parent adapter (%d) not found\n", mux->data.parent); - return -ENODEV; + return -EPROBE_DEFER; } mux->parent = parent; diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c index 69a91732ae65..68a37157377d 100644 --- a/drivers/i2c/muxes/i2c-mux-pinctrl.c +++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c @@ -113,7 +113,7 @@ static int i2c_mux_pinctrl_parse_dt(struct i2c_mux_pinctrl *mux, adapter = of_find_i2c_adapter_by_node(adapter_np); if (!adapter) { dev_err(mux->dev, "Cannot find parent bus\n"); - return -ENODEV; + return -EPROBE_DEFER; } mux->pdata->parent_bus_num = i2c_adapter_id(adapter); put_device(&adapter->dev); @@ -211,7 +211,7 @@ static int i2c_mux_pinctrl_probe(struct platform_device *pdev) if (!mux->parent) { dev_err(&pdev->dev, "Parent adapter (%d) not found\n", mux->pdata->parent_bus_num); - ret = -ENODEV; + ret = -EPROBE_DEFER; goto err; } diff --git a/drivers/ide/ide-sysfs.c b/drivers/ide/ide-sysfs.c index 883ffacaf45a..84a6a9e08d64 100644 --- a/drivers/ide/ide-sysfs.c +++ b/drivers/ide/ide-sysfs.c @@ -25,6 +25,7 @@ static ssize_t media_show(struct device *dev, struct device_attribute *attr, ide_drive_t *drive = to_ide_device(dev); return sprintf(buf, "%s\n", ide_media_string(drive)); } +static DEVICE_ATTR_RO(media); static ssize_t drivename_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -32,6 +33,7 @@ static ssize_t drivename_show(struct device *dev, struct device_attribute *attr, ide_drive_t *drive = to_ide_device(dev); return sprintf(buf, "%s\n", drive->name); } +static DEVICE_ATTR_RO(drivename); static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -39,6 +41,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, ide_drive_t *drive = to_ide_device(dev); return sprintf(buf, "ide:m-%s\n", ide_media_string(drive)); } +static DEVICE_ATTR_RO(modalias); static ssize_t model_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -46,6 +49,7 @@ static ssize_t model_show(struct device *dev, struct device_attribute *attr, ide_drive_t *drive = to_ide_device(dev); return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_PROD]); } +static DEVICE_ATTR_RO(model); static ssize_t firmware_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -53,6 +57,7 @@ static ssize_t firmware_show(struct device *dev, struct device_attribute *attr, ide_drive_t *drive = to_ide_device(dev); return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_FW_REV]); } +static DEVICE_ATTR_RO(firmware); static ssize_t serial_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -60,16 +65,28 @@ static ssize_t serial_show(struct device *dev, struct device_attribute *attr, ide_drive_t *drive = to_ide_device(dev); return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_SERNO]); } +static DEVICE_ATTR(serial, 0400, serial_show, NULL); + +static DEVICE_ATTR(unload_heads, 0644, ide_park_show, ide_park_store); + +static struct attribute *ide_attrs[] = { + &dev_attr_media.attr, + &dev_attr_drivename.attr, + &dev_attr_modalias.attr, + &dev_attr_model.attr, + &dev_attr_firmware.attr, + &dev_attr_serial.attr, + &dev_attr_unload_heads.attr, + NULL, +}; + +static const struct attribute_group ide_attr_group = { + .attrs = ide_attrs, +}; -struct device_attribute ide_dev_attrs[] = { - __ATTR_RO(media), - __ATTR_RO(drivename), - __ATTR_RO(modalias), - __ATTR_RO(model), - __ATTR_RO(firmware), - __ATTR(serial, 0400, serial_show, NULL), - __ATTR(unload_heads, 0644, ide_park_show, ide_park_store), - __ATTR_NULL +const struct attribute_group *ide_dev_groups[] = { + &ide_attr_group, + NULL, }; static ssize_t store_delete_devices(struct device *portdev, diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c index fa896210ed7b..2ce6268a2734 100644 --- a/drivers/ide/ide.c +++ b/drivers/ide/ide.c @@ -158,7 +158,7 @@ struct bus_type ide_bus_type = { .probe = generic_ide_probe, .remove = generic_ide_remove, .shutdown = generic_ide_shutdown, - .dev_attrs = ide_dev_attrs, + .dev_groups = ide_dev_groups, .suspend = generic_ide_suspend, .resume = generic_ide_resume, }; diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c index a7b30be86ae0..52605c0ea3a6 100644 --- a/drivers/iio/frequency/adf4350.c +++ b/drivers/iio/frequency/adf4350.c @@ -525,8 +525,10 @@ static int adf4350_probe(struct spi_device *spi) } indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); - if (indio_dev == NULL) - return -ENOMEM; + if (indio_dev == NULL) { + ret = -ENOMEM; + goto error_disable_clk; + } st = iio_priv(indio_dev); diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index 2710f7245c3b..2db7dcd826b9 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -477,6 +477,9 @@ void iio_disable_all_buffers(struct iio_dev *indio_dev) indio_dev->currentmode = INDIO_DIRECT_MODE; if (indio_dev->setup_ops->postdisable) indio_dev->setup_ops->postdisable(indio_dev); + + if (indio_dev->available_scan_masks == NULL) + kfree(indio_dev->active_scan_mask); } int iio_update_buffers(struct iio_dev *indio_dev, diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig index 5ceda710f516..b84791f03a27 100644 --- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -31,6 +31,17 @@ config INFINIBAND_USER_ACCESS libibverbs, libibcm and a hardware driver library from <http://www.openfabrics.org/git/>. +config INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING + bool "Experimental and unstable ABI for userspace access to flow steering verbs" + depends on INFINIBAND_USER_ACCESS + depends on STAGING + ---help--- + The final ABI for userspace access to flow steering verbs + has not been defined. To use the current ABI, *WHICH WILL + CHANGE IN THE FUTURE*, say Y here. + + If unsure, say N. + config INFINIBAND_USER_MEM bool depends on INFINIBAND_USER_ACCESS != n diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index d040b877475f..d8f9c6c272d7 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -217,7 +217,9 @@ IB_UVERBS_DECLARE_CMD(destroy_srq); IB_UVERBS_DECLARE_CMD(create_xsrq); IB_UVERBS_DECLARE_CMD(open_xrcd); IB_UVERBS_DECLARE_CMD(close_xrcd); +#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING IB_UVERBS_DECLARE_CMD(create_flow); IB_UVERBS_DECLARE_CMD(destroy_flow); +#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ #endif /* UVERBS_H */ diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index f2b81b9ee0d6..2f0f01b70e3b 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -54,7 +54,9 @@ static struct uverbs_lock_class qp_lock_class = { .name = "QP-uobj" }; static struct uverbs_lock_class ah_lock_class = { .name = "AH-uobj" }; static struct uverbs_lock_class srq_lock_class = { .name = "SRQ-uobj" }; static struct uverbs_lock_class xrcd_lock_class = { .name = "XRCD-uobj" }; +#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING static struct uverbs_lock_class rule_lock_class = { .name = "RULE-uobj" }; +#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ #define INIT_UDATA(udata, ibuf, obuf, ilen, olen) \ do { \ @@ -2599,6 +2601,7 @@ out_put: return ret ? ret : in_len; } +#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING static int kern_spec_to_ib_spec(struct ib_kern_spec *kern_spec, union ib_flow_spec *ib_spec) { @@ -2824,6 +2827,7 @@ ssize_t ib_uverbs_destroy_flow(struct ib_uverbs_file *file, return ret ? ret : in_len; } +#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ static int __uverbs_create_xsrq(struct ib_uverbs_file *file, struct ib_uverbs_create_xsrq *cmd, diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index 75ad86c4abf8..2df31f68ea09 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -115,8 +115,10 @@ static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file, [IB_USER_VERBS_CMD_CLOSE_XRCD] = ib_uverbs_close_xrcd, [IB_USER_VERBS_CMD_CREATE_XSRQ] = ib_uverbs_create_xsrq, [IB_USER_VERBS_CMD_OPEN_QP] = ib_uverbs_open_qp, +#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING [IB_USER_VERBS_CMD_CREATE_FLOW] = ib_uverbs_create_flow, [IB_USER_VERBS_CMD_DESTROY_FLOW] = ib_uverbs_destroy_flow +#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ }; static void ib_uverbs_add_one(struct ib_device *device); @@ -605,6 +607,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, if (!(file->device->ib_dev->uverbs_cmd_mask & (1ull << hdr.command))) return -ENOSYS; +#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING if (hdr.command >= IB_USER_VERBS_CMD_THRESHOLD) { struct ib_uverbs_cmd_hdr_ex hdr_ex; @@ -621,6 +624,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, (hdr_ex.out_words + hdr_ex.provider_out_words) * 4); } else { +#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ if (hdr.in_words * 4 != count) return -EINVAL; @@ -628,7 +632,9 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf, buf + sizeof(hdr), hdr.in_words * 4, hdr.out_words * 4); +#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING } +#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ } static int ib_uverbs_mmap(struct file *filp, struct vm_area_struct *vma) diff --git a/drivers/infiniband/hw/amso1100/c2_ae.c b/drivers/infiniband/hw/amso1100/c2_ae.c index d5d1929753e4..cedda25232be 100644 --- a/drivers/infiniband/hw/amso1100/c2_ae.c +++ b/drivers/infiniband/hw/amso1100/c2_ae.c @@ -141,7 +141,7 @@ static const char *to_qp_state_str(int state) return "C2_QP_STATE_ERROR"; default: return "<invalid QP state>"; - }; + } } void c2_ae_event(struct c2_dev *c2dev, u32 mq_index) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index d6c5a73becf4..f0612645de99 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1691,9 +1691,11 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) ibdev->ib_dev.create_flow = mlx4_ib_create_flow; ibdev->ib_dev.destroy_flow = mlx4_ib_destroy_flow; +#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING ibdev->ib_dev.uverbs_cmd_mask |= (1ull << IB_USER_VERBS_CMD_CREATE_FLOW) | (1ull << IB_USER_VERBS_CMD_DESTROY_FLOW); +#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */ } mlx4_ib_alloc_eqs(dev, ibdev); diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 3f831de9a4d8..b1a6cb3a2809 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -164,6 +164,7 @@ int mlx5_vector2eqn(struct mlx5_ib_dev *dev, int vector, int *eqn, int *irqn) static int alloc_comp_eqs(struct mlx5_ib_dev *dev) { struct mlx5_eq_table *table = &dev->mdev.priv.eq_table; + char name[MLX5_MAX_EQ_NAME]; struct mlx5_eq *eq, *n; int ncomp_vec; int nent; @@ -180,11 +181,10 @@ static int alloc_comp_eqs(struct mlx5_ib_dev *dev) goto clean; } - snprintf(eq->name, MLX5_MAX_EQ_NAME, "mlx5_comp%d", i); + snprintf(name, MLX5_MAX_EQ_NAME, "mlx5_comp%d", i); err = mlx5_create_map_eq(&dev->mdev, eq, i + MLX5_EQ_VEC_COMP_BASE, nent, 0, - eq->name, - &dev->mdev.priv.uuari.uars[0]); + name, &dev->mdev.priv.uuari.uars[0]); if (err) { kfree(eq); goto clean; @@ -301,9 +301,8 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, props->max_srq_sge = max_rq_sg - 1; props->max_fast_reg_page_list_len = (unsigned int)-1; props->local_ca_ack_delay = dev->mdev.caps.local_ca_ack_delay; - props->atomic_cap = dev->mdev.caps.flags & MLX5_DEV_CAP_FLAG_ATOMIC ? - IB_ATOMIC_HCA : IB_ATOMIC_NONE; - props->masked_atomic_cap = IB_ATOMIC_HCA; + props->atomic_cap = IB_ATOMIC_NONE; + props->masked_atomic_cap = IB_ATOMIC_NONE; props->max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28)); props->max_mcast_grp = 1 << dev->mdev.caps.log_max_mcg; props->max_mcast_qp_attach = dev->mdev.caps.max_qp_mcg; @@ -1006,6 +1005,11 @@ static void mlx5_ib_event(struct mlx5_core_dev *dev, enum mlx5_dev_event event, ibev.device = &ibdev->ib_dev; ibev.element.port_num = port; + if (port < 1 || port > ibdev->num_ports) { + mlx5_ib_warn(ibdev, "warning: event on port %d\n", port); + return; + } + if (ibdev->ib_active) ib_dispatch_event(&ibev); } diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index bd41df95b6f0..3453580b1eb2 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -42,6 +42,10 @@ enum { DEF_CACHE_SIZE = 10, }; +enum { + MLX5_UMR_ALIGN = 2048 +}; + static __be64 *mr_align(__be64 *ptr, int align) { unsigned long mask = align - 1; @@ -61,13 +65,11 @@ static int order2idx(struct mlx5_ib_dev *dev, int order) static int add_keys(struct mlx5_ib_dev *dev, int c, int num) { - struct device *ddev = dev->ib_dev.dma_device; struct mlx5_mr_cache *cache = &dev->cache; struct mlx5_cache_ent *ent = &cache->ent[c]; struct mlx5_create_mkey_mbox_in *in; struct mlx5_ib_mr *mr; int npages = 1 << ent->order; - int size = sizeof(u64) * npages; int err = 0; int i; @@ -83,21 +85,6 @@ static int add_keys(struct mlx5_ib_dev *dev, int c, int num) } mr->order = ent->order; mr->umred = 1; - mr->pas = kmalloc(size + 0x3f, GFP_KERNEL); - if (!mr->pas) { - kfree(mr); - err = -ENOMEM; - goto out; - } - mr->dma = dma_map_single(ddev, mr_align(mr->pas, 0x40), size, - DMA_TO_DEVICE); - if (dma_mapping_error(ddev, mr->dma)) { - kfree(mr->pas); - kfree(mr); - err = -ENOMEM; - goto out; - } - in->seg.status = 1 << 6; in->seg.xlt_oct_size = cpu_to_be32((npages + 1) / 2); in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8); @@ -108,8 +95,6 @@ static int add_keys(struct mlx5_ib_dev *dev, int c, int num) sizeof(*in)); if (err) { mlx5_ib_warn(dev, "create mkey failed %d\n", err); - dma_unmap_single(ddev, mr->dma, size, DMA_TO_DEVICE); - kfree(mr->pas); kfree(mr); goto out; } @@ -129,11 +114,9 @@ out: static void remove_keys(struct mlx5_ib_dev *dev, int c, int num) { - struct device *ddev = dev->ib_dev.dma_device; struct mlx5_mr_cache *cache = &dev->cache; struct mlx5_cache_ent *ent = &cache->ent[c]; struct mlx5_ib_mr *mr; - int size; int err; int i; @@ -149,14 +132,10 @@ static void remove_keys(struct mlx5_ib_dev *dev, int c, int num) ent->size--; spin_unlock(&ent->lock); err = mlx5_core_destroy_mkey(&dev->mdev, &mr->mmr); - if (err) { + if (err) mlx5_ib_warn(dev, "failed destroy mkey\n"); - } else { - size = ALIGN(sizeof(u64) * (1 << mr->order), 0x40); - dma_unmap_single(ddev, mr->dma, size, DMA_TO_DEVICE); - kfree(mr->pas); + else kfree(mr); - } } } @@ -408,13 +387,12 @@ static void free_cached_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr) static void clean_keys(struct mlx5_ib_dev *dev, int c) { - struct device *ddev = dev->ib_dev.dma_device; struct mlx5_mr_cache *cache = &dev->cache; struct mlx5_cache_ent *ent = &cache->ent[c]; struct mlx5_ib_mr *mr; - int size; int err; + cancel_delayed_work(&ent->dwork); while (1) { spin_lock(&ent->lock); if (list_empty(&ent->head)) { @@ -427,14 +405,10 @@ static void clean_keys(struct mlx5_ib_dev *dev, int c) ent->size--; spin_unlock(&ent->lock); err = mlx5_core_destroy_mkey(&dev->mdev, &mr->mmr); - if (err) { + if (err) mlx5_ib_warn(dev, "failed destroy mkey\n"); - } else { - size = ALIGN(sizeof(u64) * (1 << mr->order), 0x40); - dma_unmap_single(ddev, mr->dma, size, DMA_TO_DEVICE); - kfree(mr->pas); + else kfree(mr); - } } } @@ -540,13 +514,15 @@ int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev) int i; dev->cache.stopped = 1; - destroy_workqueue(dev->cache.wq); + flush_workqueue(dev->cache.wq); mlx5_mr_cache_debugfs_cleanup(dev); for (i = 0; i < MAX_MR_CACHE_ENTRIES; i++) clean_keys(dev, i); + destroy_workqueue(dev->cache.wq); + return 0; } @@ -675,10 +651,12 @@ static struct mlx5_ib_mr *reg_umr(struct ib_pd *pd, struct ib_umem *umem, int page_shift, int order, int access_flags) { struct mlx5_ib_dev *dev = to_mdev(pd->device); + struct device *ddev = dev->ib_dev.dma_device; struct umr_common *umrc = &dev->umrc; struct ib_send_wr wr, *bad; struct mlx5_ib_mr *mr; struct ib_sge sg; + int size = sizeof(u64) * npages; int err; int i; @@ -697,7 +675,22 @@ static struct mlx5_ib_mr *reg_umr(struct ib_pd *pd, struct ib_umem *umem, if (!mr) return ERR_PTR(-EAGAIN); - mlx5_ib_populate_pas(dev, umem, page_shift, mr_align(mr->pas, 0x40), 1); + mr->pas = kmalloc(size + MLX5_UMR_ALIGN - 1, GFP_KERNEL); + if (!mr->pas) { + err = -ENOMEM; + goto error; + } + + mlx5_ib_populate_pas(dev, umem, page_shift, + mr_align(mr->pas, MLX5_UMR_ALIGN), 1); + + mr->dma = dma_map_single(ddev, mr_align(mr->pas, MLX5_UMR_ALIGN), size, + DMA_TO_DEVICE); + if (dma_mapping_error(ddev, mr->dma)) { + kfree(mr->pas); + err = -ENOMEM; + goto error; + } memset(&wr, 0, sizeof(wr)); wr.wr_id = (u64)(unsigned long)mr; @@ -718,6 +711,9 @@ static struct mlx5_ib_mr *reg_umr(struct ib_pd *pd, struct ib_umem *umem, wait_for_completion(&mr->done); up(&umrc->sem); + dma_unmap_single(ddev, mr->dma, size, DMA_TO_DEVICE); + kfree(mr->pas); + if (mr->status != IB_WC_SUCCESS) { mlx5_ib_warn(dev, "reg umr failed\n"); err = -EFAULT; diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 045f8cdbd303..5659ea880741 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -203,7 +203,7 @@ static int sq_overhead(enum ib_qp_type qp_type) switch (qp_type) { case IB_QPT_XRC_INI: - size = sizeof(struct mlx5_wqe_xrc_seg); + size += sizeof(struct mlx5_wqe_xrc_seg); /* fall through */ case IB_QPT_RC: size += sizeof(struct mlx5_wqe_ctrl_seg) + @@ -211,20 +211,23 @@ static int sq_overhead(enum ib_qp_type qp_type) sizeof(struct mlx5_wqe_raddr_seg); break; + case IB_QPT_XRC_TGT: + return 0; + case IB_QPT_UC: - size = sizeof(struct mlx5_wqe_ctrl_seg) + + size += sizeof(struct mlx5_wqe_ctrl_seg) + sizeof(struct mlx5_wqe_raddr_seg); break; case IB_QPT_UD: case IB_QPT_SMI: case IB_QPT_GSI: - size = sizeof(struct mlx5_wqe_ctrl_seg) + + size += sizeof(struct mlx5_wqe_ctrl_seg) + sizeof(struct mlx5_wqe_datagram_seg); break; case MLX5_IB_QPT_REG_UMR: - size = sizeof(struct mlx5_wqe_ctrl_seg) + + size += sizeof(struct mlx5_wqe_ctrl_seg) + sizeof(struct mlx5_wqe_umr_ctrl_seg) + sizeof(struct mlx5_mkey_seg); break; @@ -270,7 +273,8 @@ static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr, return wqe_size; if (wqe_size > dev->mdev.caps.max_sq_desc_sz) { - mlx5_ib_dbg(dev, "\n"); + mlx5_ib_dbg(dev, "wqe_size(%d) > max_sq_desc_sz(%d)\n", + wqe_size, dev->mdev.caps.max_sq_desc_sz); return -EINVAL; } @@ -280,9 +284,15 @@ static int calc_sq_size(struct mlx5_ib_dev *dev, struct ib_qp_init_attr *attr, wq_size = roundup_pow_of_two(attr->cap.max_send_wr * wqe_size); qp->sq.wqe_cnt = wq_size / MLX5_SEND_WQE_BB; + if (qp->sq.wqe_cnt > dev->mdev.caps.max_wqes) { + mlx5_ib_dbg(dev, "wqe count(%d) exceeds limits(%d)\n", + qp->sq.wqe_cnt, dev->mdev.caps.max_wqes); + return -ENOMEM; + } qp->sq.wqe_shift = ilog2(MLX5_SEND_WQE_BB); qp->sq.max_gs = attr->cap.max_send_sge; - qp->sq.max_post = 1 << ilog2(wq_size / wqe_size); + qp->sq.max_post = wq_size / wqe_size; + attr->cap.max_send_wr = qp->sq.max_post; return wq_size; } @@ -1280,6 +1290,11 @@ static enum mlx5_qp_optpar opt_mask[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE][MLX5_Q MLX5_QP_OPTPAR_Q_KEY, [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_PKEY_INDEX | MLX5_QP_OPTPAR_Q_KEY, + [MLX5_QP_ST_XRC] = MLX5_QP_OPTPAR_ALT_ADDR_PATH | + MLX5_QP_OPTPAR_RRE | + MLX5_QP_OPTPAR_RAE | + MLX5_QP_OPTPAR_RWE | + MLX5_QP_OPTPAR_PKEY_INDEX, }, }, [MLX5_QP_STATE_RTR] = { @@ -1314,6 +1329,11 @@ static enum mlx5_qp_optpar opt_mask[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE][MLX5_Q [MLX5_QP_STATE_RTS] = { [MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY, [MLX5_QP_ST_MLX] = MLX5_QP_OPTPAR_Q_KEY, + [MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE, + [MLX5_QP_ST_RC] = MLX5_QP_OPTPAR_RNR_TIMEOUT | + MLX5_QP_OPTPAR_RWE | + MLX5_QP_OPTPAR_RAE | + MLX5_QP_OPTPAR_RRE, }, }, }; @@ -1651,29 +1671,6 @@ static __always_inline void set_raddr_seg(struct mlx5_wqe_raddr_seg *rseg, rseg->reserved = 0; } -static void set_atomic_seg(struct mlx5_wqe_atomic_seg *aseg, struct ib_send_wr *wr) -{ - if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { - aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap); - aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add); - } else if (wr->opcode == IB_WR_MASKED_ATOMIC_FETCH_AND_ADD) { - aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add); - aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add_mask); - } else { - aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add); - aseg->compare = 0; - } -} - -static void set_masked_atomic_seg(struct mlx5_wqe_masked_atomic_seg *aseg, - struct ib_send_wr *wr) -{ - aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap); - aseg->swap_add_mask = cpu_to_be64(wr->wr.atomic.swap_mask); - aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add); - aseg->compare_mask = cpu_to_be64(wr->wr.atomic.compare_add_mask); -} - static void set_datagram_seg(struct mlx5_wqe_datagram_seg *dseg, struct ib_send_wr *wr) { @@ -2063,28 +2060,11 @@ int mlx5_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, case IB_WR_ATOMIC_CMP_AND_SWP: case IB_WR_ATOMIC_FETCH_AND_ADD: - set_raddr_seg(seg, wr->wr.atomic.remote_addr, - wr->wr.atomic.rkey); - seg += sizeof(struct mlx5_wqe_raddr_seg); - - set_atomic_seg(seg, wr); - seg += sizeof(struct mlx5_wqe_atomic_seg); - - size += (sizeof(struct mlx5_wqe_raddr_seg) + - sizeof(struct mlx5_wqe_atomic_seg)) / 16; - break; - case IB_WR_MASKED_ATOMIC_CMP_AND_SWP: - set_raddr_seg(seg, wr->wr.atomic.remote_addr, - wr->wr.atomic.rkey); - seg += sizeof(struct mlx5_wqe_raddr_seg); - - set_masked_atomic_seg(seg, wr); - seg += sizeof(struct mlx5_wqe_masked_atomic_seg); - - size += (sizeof(struct mlx5_wqe_raddr_seg) + - sizeof(struct mlx5_wqe_masked_atomic_seg)) / 16; - break; + mlx5_ib_warn(dev, "Atomic operations are not supported yet\n"); + err = -ENOSYS; + *bad_wr = wr; + goto out; case IB_WR_LOCAL_INV: next_fence = MLX5_FENCE_MODE_INITIATOR_SMALL; diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c index 84d297afd6a9..0aa478bc291a 100644 --- a/drivers/infiniband/hw/mlx5/srq.c +++ b/drivers/infiniband/hw/mlx5/srq.c @@ -295,7 +295,7 @@ struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd, mlx5_vfree(in); if (err) { mlx5_ib_dbg(dev, "create SRQ failed, err %d\n", err); - goto err_srq; + goto err_usr_kern_srq; } mlx5_ib_dbg(dev, "create SRQ with srqn 0x%x\n", srq->msrq.srqn); @@ -316,6 +316,8 @@ struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd, err_core: mlx5_core_destroy_srq(&dev->mdev, &srq->msrq); + +err_usr_kern_srq: if (pd->uobject) destroy_srq_user(pd, srq); else diff --git a/drivers/infiniband/hw/mthca/mthca_eq.c b/drivers/infiniband/hw/mthca/mthca_eq.c index 7c9d35f39d75..690201738993 100644 --- a/drivers/infiniband/hw/mthca/mthca_eq.c +++ b/drivers/infiniband/hw/mthca/mthca_eq.c @@ -357,7 +357,7 @@ static int mthca_eq_int(struct mthca_dev *dev, struct mthca_eq *eq) mthca_warn(dev, "Unhandled event %02x(%02x) on EQ %d\n", eqe->type, eqe->subtype, eq->eqn); break; - }; + } set_eqe_hw(eqe); ++eq->cons_index; diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c index 4ed8235d2d36..50219ab2279d 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c @@ -150,7 +150,7 @@ enum ib_qp_state get_ibqp_state(enum ocrdma_qp_state qps) return IB_QPS_SQE; case OCRDMA_QPS_ERR: return IB_QPS_ERR; - }; + } return IB_QPS_ERR; } @@ -171,7 +171,7 @@ static enum ocrdma_qp_state get_ocrdma_qp_state(enum ib_qp_state qps) return OCRDMA_QPS_SQE; case IB_QPS_ERR: return OCRDMA_QPS_ERR; - }; + } return OCRDMA_QPS_ERR; } @@ -1982,7 +1982,7 @@ int ocrdma_mbx_create_qp(struct ocrdma_qp *qp, struct ib_qp_init_attr *attrs, break; default: return -EINVAL; - }; + } cmd = ocrdma_init_emb_mqe(OCRDMA_CMD_CREATE_QP, sizeof(*cmd)); if (!cmd) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c index 56e004940f18..0ce7674621ea 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c @@ -531,7 +531,7 @@ static void ocrdma_event_handler(struct ocrdma_dev *dev, u32 event) case BE_DEV_DOWN: ocrdma_close(dev); break; - }; + } } static struct ocrdma_driver ocrdma_drv = { diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c index 6e982bb43c31..69f1d1221a6b 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c @@ -141,7 +141,7 @@ static inline void get_link_speed_and_width(struct ocrdma_dev *dev, /* Unsupported */ *ib_speed = IB_SPEED_SDR; *ib_width = IB_WIDTH_1X; - }; + } } @@ -2331,7 +2331,7 @@ static enum ib_wc_status ocrdma_to_ibwc_err(u16 status) default: ibwc_status = IB_WC_GENERAL_ERR; break; - }; + } return ibwc_status; } @@ -2370,7 +2370,7 @@ static void ocrdma_update_wc(struct ocrdma_qp *qp, struct ib_wc *ibwc, pr_err("%s() invalid opcode received = 0x%x\n", __func__, hdr->cw & OCRDMA_WQE_OPCODE_MASK); break; - }; + } } static void ocrdma_set_cqe_status_flushed(struct ocrdma_qp *qp, diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c index 3591855cc5b5..6df23502059a 100644 --- a/drivers/infiniband/ulp/isert/ib_isert.c +++ b/drivers/infiniband/ulp/isert/ib_isert.c @@ -594,7 +594,7 @@ isert_connect_release(struct isert_conn *isert_conn) pr_debug("Entering isert_connect_release(): >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\n"); - if (device->use_frwr) + if (device && device->use_frwr) isert_conn_free_frwr_pool(isert_conn); if (isert_conn->conn_qp) { diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c index 922a7fea2ce6..24c41ba7d4e0 100644 --- a/drivers/input/gameport/gameport.c +++ b/drivers/input/gameport/gameport.c @@ -422,14 +422,15 @@ static struct gameport *gameport_get_pending_child(struct gameport *parent) * Gameport port operations */ -static ssize_t gameport_show_description(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t gameport_description_show(struct device *dev, struct device_attribute *attr, char *buf) { struct gameport *gameport = to_gameport_port(dev); return sprintf(buf, "%s\n", gameport->name); } +static DEVICE_ATTR(description, S_IRUGO, gameport_description_show, NULL); -static ssize_t gameport_rebind_driver(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t drvctl_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct gameport *gameport = to_gameport_port(dev); struct device_driver *drv; @@ -457,12 +458,14 @@ static ssize_t gameport_rebind_driver(struct device *dev, struct device_attribut return error ? error : count; } +static DEVICE_ATTR_WO(drvctl); -static struct device_attribute gameport_device_attrs[] = { - __ATTR(description, S_IRUGO, gameport_show_description, NULL), - __ATTR(drvctl, S_IWUSR, NULL, gameport_rebind_driver), - __ATTR_NULL +static struct attribute *gameport_device_attrs[] = { + &dev_attr_description.attr, + &dev_attr_drvctl.attr, + NULL, }; +ATTRIBUTE_GROUPS(gameport_device); static void gameport_release_port(struct device *dev) { @@ -750,7 +753,7 @@ static int gameport_bus_match(struct device *dev, struct device_driver *drv) static struct bus_type gameport_bus = { .name = "gameport", - .dev_attrs = gameport_device_attrs, + .dev_groups = gameport_device_groups, .drv_groups = gameport_driver_groups, .match = gameport_bus_match, .probe = gameport_driver_probe, diff --git a/drivers/input/input.c b/drivers/input/input.c index c04469928925..e75d015024a1 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -1734,6 +1734,7 @@ EXPORT_SYMBOL_GPL(input_class); */ struct input_dev *input_allocate_device(void) { + static atomic_t input_no = ATOMIC_INIT(0); struct input_dev *dev; dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL); @@ -1743,9 +1744,13 @@ struct input_dev *input_allocate_device(void) device_initialize(&dev->dev); mutex_init(&dev->mutex); spin_lock_init(&dev->event_lock); + init_timer(&dev->timer); INIT_LIST_HEAD(&dev->h_list); INIT_LIST_HEAD(&dev->node); + dev_set_name(&dev->dev, "input%ld", + (unsigned long) atomic_inc_return(&input_no) - 1); + __module_get(THIS_MODULE); } @@ -2019,7 +2024,6 @@ static void devm_input_device_unregister(struct device *dev, void *res) */ int input_register_device(struct input_dev *dev) { - static atomic_t input_no = ATOMIC_INIT(0); struct input_devres *devres = NULL; struct input_handler *handler; unsigned int packet_size; @@ -2059,7 +2063,6 @@ int input_register_device(struct input_dev *dev) * If delay and period are pre-set by the driver, then autorepeating * is handled by the driver itself and we don't do it in input.c. */ - init_timer(&dev->timer); if (!dev->rep[REP_DELAY] && !dev->rep[REP_PERIOD]) { dev->timer.data = (long) dev; dev->timer.function = input_repeat_key; @@ -2073,9 +2076,6 @@ int input_register_device(struct input_dev *dev) if (!dev->setkeycode) dev->setkeycode = input_default_setkeycode; - dev_set_name(&dev->dev, "input%ld", - (unsigned long) atomic_inc_return(&input_no) - 1); - error = device_add(&dev->dev); if (error) goto err_free_vals; diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c index 134c3b404a54..a2e758d27584 100644 --- a/drivers/input/keyboard/pxa27x_keypad.c +++ b/drivers/input/keyboard/pxa27x_keypad.c @@ -786,10 +786,17 @@ static int pxa27x_keypad_probe(struct platform_device *pdev) input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); input_set_capability(input_dev, EV_MSC, MSC_SCAN); - if (pdata) + if (pdata) { error = pxa27x_keypad_build_keycode(keypad); - else + } else { error = pxa27x_keypad_build_keycode_from_dt(keypad); + /* + * Data that we get from DT resides in dynamically + * allocated memory so we need to update our pdata + * pointer. + */ + pdata = keypad->pdata; + } if (error) { dev_err(&pdev->dev, "failed to build keycode\n"); goto failed_put_clk; diff --git a/drivers/input/misc/cm109.c b/drivers/input/misc/cm109.c index 082684e7f390..9365535ba7f1 100644 --- a/drivers/input/misc/cm109.c +++ b/drivers/input/misc/cm109.c @@ -351,7 +351,9 @@ static void cm109_urb_irq_callback(struct urb *urb) if (status) { if (status == -ESHUTDOWN) return; - dev_err(&dev->intf->dev, "%s: urb status %d\n", __func__, status); + dev_err_ratelimited(&dev->intf->dev, "%s: urb status %d\n", + __func__, status); + goto out; } /* Special keys */ @@ -418,8 +420,12 @@ static void cm109_urb_ctl_callback(struct urb *urb) dev->ctl_data->byte[2], dev->ctl_data->byte[3]); - if (status) - dev_err(&dev->intf->dev, "%s: urb status %d\n", __func__, status); + if (status) { + if (status == -ESHUTDOWN) + return; + dev_err_ratelimited(&dev->intf->dev, "%s: urb status %d\n", + __func__, status); + } spin_lock(&dev->ctl_submit_lock); @@ -427,7 +433,7 @@ static void cm109_urb_ctl_callback(struct urb *urb) if (likely(!dev->shutdown)) { - if (dev->buzzer_pending) { + if (dev->buzzer_pending || status) { dev->buzzer_pending = 0; dev->ctl_urb_pending = 1; cm109_submit_buzz_toggle(dev); diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c index 7c5d72a6a26a..83658472ad25 100644 --- a/drivers/input/mouse/alps.c +++ b/drivers/input/mouse/alps.c @@ -103,6 +103,7 @@ static const struct alps_model_info alps_model_data[] = { /* Dell Latitude E5500, E6400, E6500, Precision M4400 */ { { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, + { { 0x73, 0x00, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_DUALPOINT }, /* Dell XT2 */ { { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */ { { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */ diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index 78e4de42efaa..52c9ebf94729 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -223,21 +223,26 @@ static int i8042_flush(void) { unsigned long flags; unsigned char data, str; - int i = 0; + int count = 0; + int retval = 0; spin_lock_irqsave(&i8042_lock, flags); - while (((str = i8042_read_status()) & I8042_STR_OBF) && (i < I8042_BUFFER_SIZE)) { - udelay(50); - data = i8042_read_data(); - i++; - dbg("%02x <- i8042 (flush, %s)\n", - data, str & I8042_STR_AUXDATA ? "aux" : "kbd"); + while ((str = i8042_read_status()) & I8042_STR_OBF) { + if (count++ < I8042_BUFFER_SIZE) { + udelay(50); + data = i8042_read_data(); + dbg("%02x <- i8042 (flush, %s)\n", + data, str & I8042_STR_AUXDATA ? "aux" : "kbd"); + } else { + retval = -EIO; + break; + } } spin_unlock_irqrestore(&i8042_lock, flags); - return i; + return retval; } /* @@ -849,7 +854,7 @@ static int __init i8042_check_aux(void) static int i8042_controller_check(void) { - if (i8042_flush() == I8042_BUFFER_SIZE) { + if (i8042_flush()) { pr_err("No controller found\n"); return -ENODEV; } diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c index 2b56855c2c77..98707fb2cb5d 100644 --- a/drivers/input/serio/serio.c +++ b/drivers/input/serio/serio.c @@ -365,7 +365,7 @@ static ssize_t serio_show_description(struct device *dev, struct device_attribut return sprintf(buf, "%s\n", serio->name); } -static ssize_t serio_show_modalias(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) { struct serio *serio = to_serio_port(dev); @@ -373,54 +373,31 @@ static ssize_t serio_show_modalias(struct device *dev, struct device_attribute * serio->id.type, serio->id.proto, serio->id.id, serio->id.extra); } -static ssize_t serio_show_id_type(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t type_show(struct device *dev, struct device_attribute *attr, char *buf) { struct serio *serio = to_serio_port(dev); return sprintf(buf, "%02x\n", serio->id.type); } -static ssize_t serio_show_id_proto(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t proto_show(struct device *dev, struct device_attribute *attr, char *buf) { struct serio *serio = to_serio_port(dev); return sprintf(buf, "%02x\n", serio->id.proto); } -static ssize_t serio_show_id_id(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t id_show(struct device *dev, struct device_attribute *attr, char *buf) { struct serio *serio = to_serio_port(dev); return sprintf(buf, "%02x\n", serio->id.id); } -static ssize_t serio_show_id_extra(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t extra_show(struct device *dev, struct device_attribute *attr, char *buf) { struct serio *serio = to_serio_port(dev); return sprintf(buf, "%02x\n", serio->id.extra); } -static DEVICE_ATTR(type, S_IRUGO, serio_show_id_type, NULL); -static DEVICE_ATTR(proto, S_IRUGO, serio_show_id_proto, NULL); -static DEVICE_ATTR(id, S_IRUGO, serio_show_id_id, NULL); -static DEVICE_ATTR(extra, S_IRUGO, serio_show_id_extra, NULL); - -static struct attribute *serio_device_id_attrs[] = { - &dev_attr_type.attr, - &dev_attr_proto.attr, - &dev_attr_id.attr, - &dev_attr_extra.attr, - NULL -}; - -static struct attribute_group serio_id_attr_group = { - .name = "id", - .attrs = serio_device_id_attrs, -}; - -static const struct attribute_group *serio_device_attr_groups[] = { - &serio_id_attr_group, - NULL -}; - -static ssize_t serio_rebind_driver(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) +static ssize_t drvctl_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct serio *serio = to_serio_port(dev); struct device_driver *drv; @@ -474,14 +451,36 @@ static ssize_t serio_set_bind_mode(struct device *dev, struct device_attribute * return retval; } -static struct device_attribute serio_device_attrs[] = { - __ATTR(description, S_IRUGO, serio_show_description, NULL), - __ATTR(modalias, S_IRUGO, serio_show_modalias, NULL), - __ATTR(drvctl, S_IWUSR, NULL, serio_rebind_driver), - __ATTR(bind_mode, S_IWUSR | S_IRUGO, serio_show_bind_mode, serio_set_bind_mode), - __ATTR_NULL +static DEVICE_ATTR_RO(type); +static DEVICE_ATTR_RO(proto); +static DEVICE_ATTR_RO(id); +static DEVICE_ATTR_RO(extra); +static DEVICE_ATTR_RO(modalias); +static DEVICE_ATTR_WO(drvctl); +static DEVICE_ATTR(description, S_IRUGO, serio_show_description, NULL); +static DEVICE_ATTR(bind_mode, S_IWUSR | S_IRUGO, serio_show_bind_mode, serio_set_bind_mode); + +static struct attribute *serio_device_id_attrs[] = { + &dev_attr_type.attr, + &dev_attr_proto.attr, + &dev_attr_id.attr, + &dev_attr_extra.attr, + &dev_attr_modalias.attr, + &dev_attr_description.attr, + &dev_attr_drvctl.attr, + &dev_attr_bind_mode.attr, + NULL }; +static struct attribute_group serio_id_attr_group = { + .name = "id", + .attrs = serio_device_id_attrs, +}; + +static const struct attribute_group *serio_device_attr_groups[] = { + &serio_id_attr_group, + NULL +}; static void serio_release_port(struct device *dev) { @@ -996,7 +995,6 @@ EXPORT_SYMBOL(serio_interrupt); static struct bus_type serio_bus = { .name = "serio", - .dev_attrs = serio_device_attrs, .drv_groups = serio_driver_groups, .match = serio_bus_match, .uevent = serio_uevent, diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index 79b69ea47f74..e53416a4d7f3 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -1031,6 +1031,7 @@ static void wacom_destroy_leds(struct wacom *wacom) } static enum power_supply_property wacom_battery_props[] = { + POWER_SUPPLY_PROP_SCOPE, POWER_SUPPLY_PROP_CAPACITY }; @@ -1042,6 +1043,9 @@ static int wacom_battery_get_property(struct power_supply *psy, int ret = 0; switch (psp) { + case POWER_SUPPLY_PROP_SCOPE: + val->intval = POWER_SUPPLY_SCOPE_DEVICE; + break; case POWER_SUPPLY_PROP_CAPACITY: val->intval = wacom->wacom_wac.battery_capacity * 100 / 31; diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index b2aa503c16b1..c59b797eeafa 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -2054,6 +2054,12 @@ static const struct wacom_features wacom_features_0x101 = static const struct wacom_features wacom_features_0x10D = { "Wacom ISDv4 10D", WACOM_PKGLEN_MTTPC, 26202, 16325, 255, 0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; +static const struct wacom_features wacom_features_0x10E = + { "Wacom ISDv4 10E", WACOM_PKGLEN_MTTPC, 27760, 15694, 255, + 0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; +static const struct wacom_features wacom_features_0x10F = + { "Wacom ISDv4 10F", WACOM_PKGLEN_MTTPC, 27760, 15694, 255, + 0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; static const struct wacom_features wacom_features_0x4001 = { "Wacom ISDv4 4001", WACOM_PKGLEN_MTTPC, 26202, 16325, 255, 0, MTTPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; @@ -2248,6 +2254,8 @@ const struct usb_device_id wacom_ids[] = { { USB_DEVICE_WACOM(0x100) }, { USB_DEVICE_WACOM(0x101) }, { USB_DEVICE_WACOM(0x10D) }, + { USB_DEVICE_WACOM(0x10E) }, + { USB_DEVICE_WACOM(0x10F) }, { USB_DEVICE_WACOM(0x300) }, { USB_DEVICE_WACOM(0x301) }, { USB_DEVICE_WACOM(0x304) }, diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index fe302e33f72e..c880ebaf1553 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -52,7 +52,7 @@ config AMD_IOMMU select PCI_PRI select PCI_PASID select IOMMU_API - depends on X86_64 && PCI && ACPI && X86_IO_APIC + depends on X86_64 && PCI && ACPI ---help--- With this option you can enable support for AMD IOMMU hardware in your system. An IOMMU is a hardware component which provides diff --git a/drivers/ipack/ipack.c b/drivers/ipack/ipack.c index 6e066c53acce..d0016ba469ed 100644 --- a/drivers/ipack/ipack.c +++ b/drivers/ipack/ipack.c @@ -180,20 +180,28 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, ipack_device_attr(id_format, "0x%hhu\n"); -static struct device_attribute ipack_dev_attrs[] = { - __ATTR_RO(id), - __ATTR_RO(id_device), - __ATTR_RO(id_format), - __ATTR_RO(id_vendor), - __ATTR_RO(modalias), +static DEVICE_ATTR_RO(id); +static DEVICE_ATTR_RO(id_device); +static DEVICE_ATTR_RO(id_format); +static DEVICE_ATTR_RO(id_vendor); +static DEVICE_ATTR_RO(modalias); + +static struct attribute *ipack_attrs[] = { + &dev_attr_id.attr, + &dev_attr_id_device.attr, + &dev_attr_id_format.attr, + &dev_attr_id_vendor.attr, + &dev_attr_modalias.attr, + NULL, }; +ATTRIBUTE_GROUPS(ipack); static struct bus_type ipack_bus_type = { .name = "ipack", .probe = ipack_bus_probe, .match = ipack_bus_match, .remove = ipack_bus_remove, - .dev_attrs = ipack_dev_attrs, + .dev_groups = ipack_groups, .uevent = ipack_uevent, }; diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c index 71eb233b9ace..2a7f0dd6abab 100644 --- a/drivers/md/bcache/request.c +++ b/drivers/md/bcache/request.c @@ -996,10 +996,11 @@ static void request_write(struct cached_dev *dc, struct search *s) closure_bio_submit(bio, cl, s->d); } else { bch_writeback_add(dc); + s->op.cache_bio = bio; if (bio->bi_rw & REQ_FLUSH) { /* Also need to send a flush to the backing device */ - struct bio *flush = bio_alloc_bioset(0, GFP_NOIO, + struct bio *flush = bio_alloc_bioset(GFP_NOIO, 0, dc->disk.bio_split); flush->bi_rw = WRITE_FLUSH; @@ -1008,8 +1009,6 @@ static void request_write(struct cached_dev *dc, struct search *s) flush->bi_private = cl; closure_bio_submit(flush, cl, s->d); - } else { - s->op.cache_bio = bio; } } out: diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index a7fd82133b12..12dc29ba7399 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1654,9 +1654,9 @@ int bitmap_create(struct mddev *mddev) bitmap->mddev = mddev; if (mddev->kobj.sd) - bm = sysfs_get_dirent(mddev->kobj.sd, NULL, "bitmap"); + bm = sysfs_get_dirent(mddev->kobj.sd, "bitmap"); if (bm) { - bitmap->sysfs_can_clear = sysfs_get_dirent(bm, NULL, "can_clear"); + bitmap->sysfs_can_clear = sysfs_get_dirent(bm, "can_clear"); sysfs_put(bm); } else bitmap->sysfs_can_clear = NULL; diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index 4caa8e6d59d7..2d2b1b7588d7 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -269,6 +269,14 @@ static chunk_t area_location(struct pstore *ps, chunk_t area) return NUM_SNAPSHOT_HDR_CHUNKS + ((ps->exceptions_per_area + 1) * area); } +static void skip_metadata(struct pstore *ps) +{ + uint32_t stride = ps->exceptions_per_area + 1; + chunk_t next_free = ps->next_free; + if (sector_div(next_free, stride) == NUM_SNAPSHOT_HDR_CHUNKS) + ps->next_free++; +} + /* * Read or write a metadata area. Remembering to skip the first * chunk which holds the header. @@ -502,6 +510,8 @@ static int read_exceptions(struct pstore *ps, ps->current_area--; + skip_metadata(ps); + return 0; } @@ -616,8 +626,6 @@ static int persistent_prepare_exception(struct dm_exception_store *store, struct dm_exception *e) { struct pstore *ps = get_info(store); - uint32_t stride; - chunk_t next_free; sector_t size = get_dev_size(dm_snap_cow(store->snap)->bdev); /* Is there enough room ? */ @@ -630,10 +638,8 @@ static int persistent_prepare_exception(struct dm_exception_store *store, * Move onto the next free pending, making sure to take * into account the location of the metadata chunks. */ - stride = (ps->exceptions_per_area + 1); - next_free = ++ps->next_free; - if (sector_div(next_free, stride) == 1) - ps->next_free++; + ps->next_free++; + skip_metadata(ps); atomic_inc(&ps->pending_count); return 0; diff --git a/drivers/md/md.c b/drivers/md/md.c index adf4d7e1d5e1..2445fece9263 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3555,7 +3555,7 @@ level_store(struct mddev *mddev, const char *buf, size_t len) printk(KERN_WARNING "md: cannot register extra attributes for %s\n", mdname(mddev)); - mddev->sysfs_action = sysfs_get_dirent(mddev->kobj.sd, NULL, "sync_action"); + mddev->sysfs_action = sysfs_get_dirent(mddev->kobj.sd, "sync_action"); } if (mddev->pers->sync_request != NULL && pers->sync_request == NULL) { @@ -8111,6 +8111,7 @@ static int md_set_badblocks(struct badblocks *bb, sector_t s, int sectors, u64 *p; int lo, hi; int rv = 1; + unsigned long flags; if (bb->shift < 0) /* badblocks are disabled */ @@ -8125,7 +8126,7 @@ static int md_set_badblocks(struct badblocks *bb, sector_t s, int sectors, sectors = next - s; } - write_seqlock_irq(&bb->lock); + write_seqlock_irqsave(&bb->lock, flags); p = bb->page; lo = 0; @@ -8241,7 +8242,7 @@ static int md_set_badblocks(struct badblocks *bb, sector_t s, int sectors, bb->changed = 1; if (!acknowledged) bb->unacked_exist = 1; - write_sequnlock_irq(&bb->lock); + write_sequnlock_irqrestore(&bb->lock, flags); return rv; } diff --git a/drivers/md/md.h b/drivers/md/md.h index 608050c43f17..b0051f2fbc0c 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -501,7 +501,7 @@ extern struct attribute_group md_bitmap_group; static inline struct sysfs_dirent *sysfs_get_dirent_safe(struct sysfs_dirent *sd, char *name) { if (sd) - return sysfs_get_dirent(sd, NULL, name); + return sysfs_get_dirent(sd, name); return sd; } static inline void sysfs_notify_dirent_safe(struct sysfs_dirent *sd) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index d60412c7f995..aacf6bf352d8 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1479,6 +1479,7 @@ static int raid1_spare_active(struct mddev *mddev) } } if (rdev + && rdev->recovery_offset == MaxSector && !test_bit(Faulty, &rdev->flags) && !test_and_set_bit(In_sync, &rdev->flags)) { count++; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index df7b0a06b0ea..73dc8a377522 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1782,6 +1782,7 @@ static int raid10_spare_active(struct mddev *mddev) } sysfs_notify_dirent_safe(tmp->replacement->sysfs_state); } else if (tmp->rdev + && tmp->rdev->recovery_offset == MaxSector && !test_bit(Faulty, &tmp->rdev->flags) && !test_and_set_bit(In_sync, &tmp->rdev->flags)) { count++; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 7ff4f252ca1a..f8b906843926 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -778,6 +778,12 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) bi->bi_io_vec[0].bv_len = STRIPE_SIZE; bi->bi_io_vec[0].bv_offset = 0; bi->bi_size = STRIPE_SIZE; + /* + * If this is discard request, set bi_vcnt 0. We don't + * want to confuse SCSI because SCSI will replace payload + */ + if (rw & REQ_DISCARD) + bi->bi_vcnt = 0; if (rrdev) set_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags); @@ -816,6 +822,12 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) rbi->bi_io_vec[0].bv_len = STRIPE_SIZE; rbi->bi_io_vec[0].bv_offset = 0; rbi->bi_size = STRIPE_SIZE; + /* + * If this is discard request, set bi_vcnt 0. We don't + * want to confuse SCSI because SCSI will replace payload + */ + if (rw & REQ_DISCARD) + rbi->bi_vcnt = 0; if (conf->mddev->gendisk) trace_block_bio_remap(bdev_get_queue(rbi->bi_bdev), rbi, disk_devt(conf->mddev->gendisk), @@ -2910,6 +2922,14 @@ static void handle_stripe_clean_event(struct r5conf *conf, } /* now that discard is done we can proceed with any sync */ clear_bit(STRIPE_DISCARD, &sh->state); + /* + * SCSI discard will change some bio fields and the stripe has + * no updated data, so remove it from hash list and the stripe + * will be reinitialized + */ + spin_lock_irq(&conf->device_lock); + remove_hash(sh); + spin_unlock_irq(&conf->device_lock); if (test_bit(STRIPE_SYNC_REQUESTED, &sh->state)) set_bit(STRIPE_HANDLE, &sh->state); diff --git a/drivers/media/dvb-frontends/tda10071.c b/drivers/media/dvb-frontends/tda10071.c index 2521f7e23018..e79749cfec81 100644 --- a/drivers/media/dvb-frontends/tda10071.c +++ b/drivers/media/dvb-frontends/tda10071.c @@ -912,14 +912,8 @@ static int tda10071_init(struct dvb_frontend *fe) { 0xd5, 0x03, 0x03 }, }; - /* firmware status */ - ret = tda10071_rd_reg(priv, 0x51, &tmp); - if (ret) - goto error; - - if (!tmp) { + if (priv->warm) { /* warm state - wake up device from sleep */ - priv->warm = 1; for (i = 0; i < ARRAY_SIZE(tab); i++) { ret = tda10071_wr_reg_mask(priv, tab[i].reg, @@ -937,7 +931,6 @@ static int tda10071_init(struct dvb_frontend *fe) goto error; } else { /* cold state - try to download firmware */ - priv->warm = 0; /* request the firmware, this will block and timeout */ ret = request_firmware(&fw, fw_file, priv->i2c->dev.parent); diff --git a/drivers/media/i2c/ad9389b.c b/drivers/media/i2c/ad9389b.c index bb0c99d7a4f1..b06a7e54ee0d 100644 --- a/drivers/media/i2c/ad9389b.c +++ b/drivers/media/i2c/ad9389b.c @@ -628,16 +628,13 @@ static int ad9389b_s_stream(struct v4l2_subdev *sd, int enable) static const struct v4l2_dv_timings_cap ad9389b_timings_cap = { .type = V4L2_DV_BT_656_1120, - .bt = { - .max_width = 1920, - .max_height = 1200, - .min_pixelclock = 25000000, - .max_pixelclock = 170000000, - .standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | + /* keep this initialization for compatibility with GCC < 4.4.6 */ + .reserved = { 0 }, + V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1200, 25000000, 170000000, + V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT, - .capabilities = V4L2_DV_BT_CAP_PROGRESSIVE | - V4L2_DV_BT_CAP_REDUCED_BLANKING | V4L2_DV_BT_CAP_CUSTOM, - }, + V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING | + V4L2_DV_BT_CAP_CUSTOM) }; static int ad9389b_s_dv_timings(struct v4l2_subdev *sd, diff --git a/drivers/media/i2c/adv7511.c b/drivers/media/i2c/adv7511.c index 7a576097471f..7c8d971f1f61 100644 --- a/drivers/media/i2c/adv7511.c +++ b/drivers/media/i2c/adv7511.c @@ -119,16 +119,14 @@ static int adv7511_s_clock_freq(struct v4l2_subdev *sd, u32 freq); static const struct v4l2_dv_timings_cap adv7511_timings_cap = { .type = V4L2_DV_BT_656_1120, - .bt = { - .max_width = ADV7511_MAX_WIDTH, - .max_height = ADV7511_MAX_HEIGHT, - .min_pixelclock = ADV7511_MIN_PIXELCLOCK, - .max_pixelclock = ADV7511_MAX_PIXELCLOCK, - .standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | + /* keep this initialization for compatibility with GCC < 4.4.6 */ + .reserved = { 0 }, + V4L2_INIT_BT_TIMINGS(0, ADV7511_MAX_WIDTH, 0, ADV7511_MAX_HEIGHT, + ADV7511_MIN_PIXELCLOCK, ADV7511_MAX_PIXELCLOCK, + V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT, - .capabilities = V4L2_DV_BT_CAP_PROGRESSIVE | - V4L2_DV_BT_CAP_REDUCED_BLANKING | V4L2_DV_BT_CAP_CUSTOM, - }, + V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING | + V4L2_DV_BT_CAP_CUSTOM) }; static inline struct adv7511_state *get_adv7511_state(struct v4l2_subdev *sd) @@ -1126,6 +1124,7 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id * state->i2c_edid = i2c_new_dummy(client->adapter, state->i2c_edid_addr >> 1); if (state->i2c_edid == NULL) { v4l2_err(sd, "failed to register edid i2c client\n"); + err = -ENOMEM; goto err_entity; } @@ -1133,6 +1132,7 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id * state->work_queue = create_singlethread_workqueue(sd->name); if (state->work_queue == NULL) { v4l2_err(sd, "could not create workqueue\n"); + err = -ENOMEM; goto err_unreg_cec; } diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c index d1748901337c..22f729d66a96 100644 --- a/drivers/media/i2c/adv7842.c +++ b/drivers/media/i2c/adv7842.c @@ -546,30 +546,24 @@ static inline bool is_digital_input(struct v4l2_subdev *sd) static const struct v4l2_dv_timings_cap adv7842_timings_cap_analog = { .type = V4L2_DV_BT_656_1120, - .bt = { - .max_width = 1920, - .max_height = 1200, - .min_pixelclock = 25000000, - .max_pixelclock = 170000000, - .standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | + /* keep this initialization for compatibility with GCC < 4.4.6 */ + .reserved = { 0 }, + V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1200, 25000000, 170000000, + V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT, - .capabilities = V4L2_DV_BT_CAP_PROGRESSIVE | - V4L2_DV_BT_CAP_REDUCED_BLANKING | V4L2_DV_BT_CAP_CUSTOM, - }, + V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING | + V4L2_DV_BT_CAP_CUSTOM) }; static const struct v4l2_dv_timings_cap adv7842_timings_cap_digital = { .type = V4L2_DV_BT_656_1120, - .bt = { - .max_width = 1920, - .max_height = 1200, - .min_pixelclock = 25000000, - .max_pixelclock = 225000000, - .standards = V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | + /* keep this initialization for compatibility with GCC < 4.4.6 */ + .reserved = { 0 }, + V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1200, 25000000, 225000000, + V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT | V4L2_DV_BT_STD_GTF | V4L2_DV_BT_STD_CVT, - .capabilities = V4L2_DV_BT_CAP_PROGRESSIVE | - V4L2_DV_BT_CAP_REDUCED_BLANKING | V4L2_DV_BT_CAP_CUSTOM, - }, + V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_REDUCED_BLANKING | + V4L2_DV_BT_CAP_CUSTOM) }; static inline const struct v4l2_dv_timings_cap * diff --git a/drivers/media/i2c/ths8200.c b/drivers/media/i2c/ths8200.c index a58a8f663ffb..d9f65d7e3e58 100644 --- a/drivers/media/i2c/ths8200.c +++ b/drivers/media/i2c/ths8200.c @@ -46,14 +46,10 @@ struct ths8200_state { static const struct v4l2_dv_timings_cap ths8200_timings_cap = { .type = V4L2_DV_BT_656_1120, - .bt = { - .max_width = 1920, - .max_height = 1080, - .min_pixelclock = 25000000, - .max_pixelclock = 148500000, - .standards = V4L2_DV_BT_STD_CEA861, - .capabilities = V4L2_DV_BT_CAP_PROGRESSIVE, - }, + /* keep this initialization for compatibility with GCC < 4.4.6 */ + .reserved = { 0 }, + V4L2_INIT_BT_TIMINGS(0, 1920, 0, 1080, 25000000, 148500000, + V4L2_DV_BT_STD_CEA861, V4L2_DV_BT_CAP_PROGRESSIVE) }; static inline struct ths8200_state *to_state(struct v4l2_subdev *sd) diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c index e12bbd8c3f0b..fb60da85bc2c 100644 --- a/drivers/media/pci/saa7134/saa7134-video.c +++ b/drivers/media/pci/saa7134/saa7134-video.c @@ -1455,6 +1455,7 @@ static int video_release(struct file *file) /* stop video capture */ if (res_check(fh, RESOURCE_VIDEO)) { + pm_qos_remove_request(&dev->qos_request); videobuf_streamoff(&fh->cap); res_free(dev,fh,RESOURCE_VIDEO); } diff --git a/drivers/media/platform/exynos4-is/Kconfig b/drivers/media/platform/exynos4-is/Kconfig index 53ad0f080179..d2d3b4b61435 100644 --- a/drivers/media/platform/exynos4-is/Kconfig +++ b/drivers/media/platform/exynos4-is/Kconfig @@ -29,7 +29,7 @@ config VIDEO_S5P_FIMC config VIDEO_S5P_MIPI_CSIS tristate "S5P/EXYNOS MIPI-CSI2 receiver (MIPI-CSIS) driver" depends on REGULATOR - select S5P_SETUP_MIPIPHY + select GENERIC_PHY help This is a V4L2 driver for Samsung S5P and EXYNOS4 SoC MIPI-CSI2 receiver (MIPI-CSIS) devices. diff --git a/drivers/media/platform/exynos4-is/mipi-csis.c b/drivers/media/platform/exynos4-is/mipi-csis.c index 0914230b42de..9fc2af6a0446 100644 --- a/drivers/media/platform/exynos4-is/mipi-csis.c +++ b/drivers/media/platform/exynos4-is/mipi-csis.c @@ -20,6 +20,7 @@ #include <linux/memory.h> #include <linux/module.h> #include <linux/of.h> +#include <linux/phy/phy.h> #include <linux/platform_data/mipi-csis.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> @@ -180,6 +181,7 @@ struct csis_drvdata { * @sd: v4l2_subdev associated with CSIS device instance * @index: the hardware instance index * @pdev: CSIS platform device + * @phy: pointer to the CSIS generic PHY * @regs: mmaped I/O registers memory * @supplies: CSIS regulator supplies * @clock: CSIS clocks @@ -203,6 +205,7 @@ struct csis_state { struct v4l2_subdev sd; u8 index; struct platform_device *pdev; + struct phy *phy; void __iomem *regs; struct regulator_bulk_data supplies[CSIS_NUM_SUPPLIES]; struct clk *clock[NUM_CSIS_CLOCKS]; @@ -779,8 +782,8 @@ static int s5pcsis_parse_dt(struct platform_device *pdev, "samsung,csis-wclk"); state->num_lanes = endpoint.bus.mipi_csi2.num_data_lanes; - of_node_put(node); + return 0; } #else @@ -829,6 +832,10 @@ static int s5pcsis_probe(struct platform_device *pdev) return -EINVAL; } + state->phy = devm_phy_get(dev, "csis"); + if (IS_ERR(state->phy)) + return PTR_ERR(state->phy); + mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); state->regs = devm_ioremap_resource(dev, mem_res); if (IS_ERR(state->regs)) @@ -922,7 +929,7 @@ static int s5pcsis_pm_suspend(struct device *dev, bool runtime) mutex_lock(&state->lock); if (state->flags & ST_POWERED) { s5pcsis_stop_stream(state); - ret = s5p_csis_phy_enable(state->index, false); + ret = phy_power_off(state->phy); if (ret) goto unlock; ret = regulator_bulk_disable(CSIS_NUM_SUPPLIES, @@ -958,7 +965,7 @@ static int s5pcsis_pm_resume(struct device *dev, bool runtime) state->supplies); if (ret) goto unlock; - ret = s5p_csis_phy_enable(state->index, true); + ret = phy_power_on(state->phy); if (!ret) { state->flags |= ST_POWERED; } else { diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c index 15d23968d1de..9b88a4601007 100644 --- a/drivers/media/platform/s5p-jpeg/jpeg-core.c +++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c @@ -1423,6 +1423,7 @@ static int s5p_jpeg_probe(struct platform_device *pdev) jpeg->vfd_decoder->release = video_device_release; jpeg->vfd_decoder->lock = &jpeg->lock; jpeg->vfd_decoder->v4l2_dev = &jpeg->v4l2_dev; + jpeg->vfd_decoder->vfl_dir = VFL_DIR_M2M; ret = video_register_device(jpeg->vfd_decoder, VFL_TYPE_GRABBER, -1); if (ret) { diff --git a/drivers/media/platform/sh_vou.c b/drivers/media/platform/sh_vou.c index 7a9c5e9329f2..4f30341dc2ab 100644 --- a/drivers/media/platform/sh_vou.c +++ b/drivers/media/platform/sh_vou.c @@ -776,7 +776,7 @@ static int sh_vou_try_fmt_vid_out(struct file *file, void *priv, v4l_bound_align_image(&pix->width, 0, VOU_MAX_IMAGE_WIDTH, 1, &pix->height, 0, VOU_MAX_IMAGE_HEIGHT, 1, 0); - for (i = 0; ARRAY_SIZE(vou_fmt); i++) + for (i = 0; i < ARRAY_SIZE(vou_fmt); i++) if (vou_fmt[i].pfmt == pix->pixelformat) return 0; diff --git a/drivers/media/platform/soc_camera/mx3_camera.c b/drivers/media/platform/soc_camera/mx3_camera.c index 8f9f6211c52e..f975b7008692 100644 --- a/drivers/media/platform/soc_camera/mx3_camera.c +++ b/drivers/media/platform/soc_camera/mx3_camera.c @@ -266,7 +266,6 @@ static void mx3_videobuf_queue(struct vb2_buffer *vb) struct idmac_channel *ichan = mx3_cam->idmac_channel[0]; struct idmac_video_param *video = &ichan->params.video; const struct soc_mbus_pixelfmt *host_fmt = icd->current_fmt->host_fmt; - unsigned long flags; dma_cookie_t cookie; size_t new_size; @@ -328,7 +327,7 @@ static void mx3_videobuf_queue(struct vb2_buffer *vb) memset(vb2_plane_vaddr(vb, 0), 0xaa, vb2_get_plane_payload(vb, 0)); #endif - spin_lock_irqsave(&mx3_cam->lock, flags); + spin_lock_irq(&mx3_cam->lock); list_add_tail(&buf->queue, &mx3_cam->capture); if (!mx3_cam->active) @@ -351,7 +350,7 @@ static void mx3_videobuf_queue(struct vb2_buffer *vb) if (mx3_cam->active == buf) mx3_cam->active = NULL; - spin_unlock_irqrestore(&mx3_cam->lock, flags); + spin_unlock_irq(&mx3_cam->lock); error: vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); } diff --git a/drivers/media/tuners/e4000.c b/drivers/media/tuners/e4000.c index ad9309da4a91..6c96e4898777 100644 --- a/drivers/media/tuners/e4000.c +++ b/drivers/media/tuners/e4000.c @@ -19,6 +19,7 @@ */ #include "e4000_priv.h" +#include <linux/math64.h> /* write multiple registers */ static int e4000_wr_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len) @@ -233,7 +234,7 @@ static int e4000_set_params(struct dvb_frontend *fe) * or more. */ f_vco = c->frequency * e4000_pll_lut[i].mul; - sigma_delta = 0x10000UL * (f_vco % priv->cfg->clock) / priv->cfg->clock; + sigma_delta = div_u64(0x10000ULL * (f_vco % priv->cfg->clock), priv->cfg->clock); buf[0] = f_vco / priv->cfg->clock; buf[1] = (sigma_delta >> 0) & 0xff; buf[2] = (sigma_delta >> 8) & 0xff; diff --git a/drivers/media/usb/stkwebcam/stk-webcam.c b/drivers/media/usb/stkwebcam/stk-webcam.c index c43c8d32be40..be77482c3070 100644 --- a/drivers/media/usb/stkwebcam/stk-webcam.c +++ b/drivers/media/usb/stkwebcam/stk-webcam.c @@ -111,6 +111,13 @@ static const struct dmi_system_id stk_upside_down_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "F3JC") } }, + { + .ident = "T12Rg-H", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "HCL Infosystems Limited"), + DMI_MATCH(DMI_PRODUCT_NAME, "T12Rg-H") + } + }, {} }; diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c index 81695d48c13e..c3bb2502225b 100644 --- a/drivers/media/usb/uvc/uvc_driver.c +++ b/drivers/media/usb/uvc/uvc_driver.c @@ -2090,6 +2090,15 @@ static struct usb_device_id uvc_ids[] = { .bInterfaceSubClass = 1, .bInterfaceProtocol = 0, .driver_info = UVC_QUIRK_PROBE_MINMAX }, + /* Microsoft Lifecam NX-3000 */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x045e, + .idProduct = 0x0721, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_DEF }, /* Microsoft Lifecam VX-7000 */ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO, @@ -2174,6 +2183,15 @@ static struct usb_device_id uvc_ids[] = { .bInterfaceSubClass = 1, .bInterfaceProtocol = 0, .driver_info = UVC_QUIRK_PROBE_DEF }, + /* Dell SP2008WFP Monitor */ + { .match_flags = USB_DEVICE_ID_MATCH_DEVICE + | USB_DEVICE_ID_MATCH_INT_INFO, + .idVendor = 0x05a9, + .idProduct = 0x2641, + .bInterfaceClass = USB_CLASS_VIDEO, + .bInterfaceSubClass = 1, + .bInterfaceProtocol = 0, + .driver_info = UVC_QUIRK_PROBE_DEF }, /* Dell Alienware X51 */ { .match_flags = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_INFO, diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c index 594c75eab5a5..de0e87f0b2c3 100644 --- a/drivers/media/v4l2-core/videobuf2-core.c +++ b/drivers/media/v4l2-core/videobuf2-core.c @@ -353,7 +353,9 @@ static int __verify_length(struct vb2_buffer *vb, const struct v4l2_buffer *b) if (b->m.planes[plane].bytesused > length) return -EINVAL; - if (b->m.planes[plane].data_offset >= + + if (b->m.planes[plane].data_offset > 0 && + b->m.planes[plane].data_offset >= b->m.planes[plane].bytesused) return -EINVAL; } diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c index fd56f2563201..646f08f4f504 100644 --- a/drivers/media/v4l2-core/videobuf2-dma-contig.c +++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c @@ -423,6 +423,39 @@ static inline int vma_is_io(struct vm_area_struct *vma) return !!(vma->vm_flags & (VM_IO | VM_PFNMAP)); } +static int vb2_dc_get_user_pfn(unsigned long start, int n_pages, + struct vm_area_struct *vma, unsigned long *res) +{ + unsigned long pfn, start_pfn, prev_pfn; + unsigned int i; + int ret; + + if (!vma_is_io(vma)) + return -EFAULT; + + ret = follow_pfn(vma, start, &pfn); + if (ret) + return ret; + + start_pfn = pfn; + start += PAGE_SIZE; + + for (i = 1; i < n_pages; ++i, start += PAGE_SIZE) { + prev_pfn = pfn; + ret = follow_pfn(vma, start, &pfn); + + if (ret) { + pr_err("no page for address %lu\n", start); + return ret; + } + if (pfn != prev_pfn + 1) + return -EINVAL; + } + + *res = start_pfn; + return 0; +} + static int vb2_dc_get_user_pages(unsigned long start, struct page **pages, int n_pages, struct vm_area_struct *vma, int write) { @@ -433,6 +466,9 @@ static int vb2_dc_get_user_pages(unsigned long start, struct page **pages, unsigned long pfn; int ret = follow_pfn(vma, start, &pfn); + if (!pfn_valid(pfn)) + return -EINVAL; + if (ret) { pr_err("no page for address %lu\n", start); return ret; @@ -468,16 +504,49 @@ static void vb2_dc_put_userptr(void *buf_priv) struct vb2_dc_buf *buf = buf_priv; struct sg_table *sgt = buf->dma_sgt; - dma_unmap_sg(buf->dev, sgt->sgl, sgt->orig_nents, buf->dma_dir); - if (!vma_is_io(buf->vma)) - vb2_dc_sgt_foreach_page(sgt, vb2_dc_put_dirty_page); + if (sgt) { + dma_unmap_sg(buf->dev, sgt->sgl, sgt->orig_nents, buf->dma_dir); + if (!vma_is_io(buf->vma)) + vb2_dc_sgt_foreach_page(sgt, vb2_dc_put_dirty_page); - sg_free_table(sgt); - kfree(sgt); + sg_free_table(sgt); + kfree(sgt); + } vb2_put_vma(buf->vma); kfree(buf); } +/* + * For some kind of reserved memory there might be no struct page available, + * so all that can be done to support such 'pages' is to try to convert + * pfn to dma address or at the last resort just assume that + * dma address == physical address (like it has been assumed in earlier version + * of videobuf2-dma-contig + */ + +#ifdef __arch_pfn_to_dma +static inline dma_addr_t vb2_dc_pfn_to_dma(struct device *dev, unsigned long pfn) +{ + return (dma_addr_t)__arch_pfn_to_dma(dev, pfn); +} +#elif defined(__pfn_to_bus) +static inline dma_addr_t vb2_dc_pfn_to_dma(struct device *dev, unsigned long pfn) +{ + return (dma_addr_t)__pfn_to_bus(pfn); +} +#elif defined(__pfn_to_phys) +static inline dma_addr_t vb2_dc_pfn_to_dma(struct device *dev, unsigned long pfn) +{ + return (dma_addr_t)__pfn_to_phys(pfn); +} +#else +static inline dma_addr_t vb2_dc_pfn_to_dma(struct device *dev, unsigned long pfn) +{ + /* really, we cannot do anything better at this point */ + return (dma_addr_t)(pfn) << PAGE_SHIFT; +} +#endif + static void *vb2_dc_get_userptr(void *alloc_ctx, unsigned long vaddr, unsigned long size, int write) { @@ -548,6 +617,14 @@ static void *vb2_dc_get_userptr(void *alloc_ctx, unsigned long vaddr, /* extract page list from userspace mapping */ ret = vb2_dc_get_user_pages(start, pages, n_pages, vma, write); if (ret) { + unsigned long pfn; + if (vb2_dc_get_user_pfn(start, n_pages, vma, &pfn) == 0) { + buf->dma_addr = vb2_dc_pfn_to_dma(buf->dev, pfn); + buf->size = size; + kfree(pages); + return buf; + } + pr_err("failed to get user pages\n"); goto fail_vma; } diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c index ffcb10ac4341..bbf4aea1627d 100644 --- a/drivers/memstick/core/memstick.c +++ b/drivers/memstick/core/memstick.c @@ -153,24 +153,24 @@ static ssize_t name##_show(struct device *dev, struct device_attribute *attr, \ struct memstick_dev *card = container_of(dev, struct memstick_dev, \ dev); \ return sprintf(buf, format, card->id.name); \ -} +} \ +static DEVICE_ATTR_RO(name); MEMSTICK_ATTR(type, "%02X"); MEMSTICK_ATTR(category, "%02X"); MEMSTICK_ATTR(class, "%02X"); -#define MEMSTICK_ATTR_RO(name) __ATTR(name, S_IRUGO, name##_show, NULL) - -static struct device_attribute memstick_dev_attrs[] = { - MEMSTICK_ATTR_RO(type), - MEMSTICK_ATTR_RO(category), - MEMSTICK_ATTR_RO(class), - __ATTR_NULL +static struct attribute *memstick_dev_attrs[] = { + &dev_attr_type.attr, + &dev_attr_category.attr, + &dev_attr_class.attr, + NULL, }; +ATTRIBUTE_GROUPS(memstick_dev); static struct bus_type memstick_bus_type = { .name = "memstick", - .dev_attrs = memstick_dev_attrs, + .dev_groups = memstick_dev_groups, .match = memstick_bus_match, .uevent = memstick_uevent, .probe = memstick_device_probe, diff --git a/drivers/message/i2o/core.h b/drivers/message/i2o/core.h index cbe384fb848c..91614f11f89a 100644 --- a/drivers/message/i2o/core.h +++ b/drivers/message/i2o/core.h @@ -33,7 +33,7 @@ extern int __init i2o_pci_init(void); extern void __exit i2o_pci_exit(void); /* device */ -extern struct device_attribute i2o_device_attrs[]; +extern const struct attribute_group *i2o_device_groups[]; extern void i2o_device_remove(struct i2o_device *); extern int i2o_device_parse_lct(struct i2o_controller *); diff --git a/drivers/message/i2o/device.c b/drivers/message/i2o/device.c index 4547db99f7da..98348f420b52 100644 --- a/drivers/message/i2o/device.c +++ b/drivers/message/i2o/device.c @@ -138,45 +138,55 @@ static void i2o_device_release(struct device *dev) } /** - * i2o_device_show_class_id - Displays class id of I2O device + * class_id_show - Displays class id of I2O device * @dev: device of which the class id should be displayed * @attr: pointer to device attribute * @buf: buffer into which the class id should be printed * * Returns the number of bytes which are printed into the buffer. */ -static ssize_t i2o_device_show_class_id(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t class_id_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct i2o_device *i2o_dev = to_i2o_device(dev); sprintf(buf, "0x%03x\n", i2o_dev->lct_data.class_id); return strlen(buf) + 1; } +static DEVICE_ATTR_RO(class_id); /** - * i2o_device_show_tid - Displays TID of I2O device + * tid_show - Displays TID of I2O device * @dev: device of which the TID should be displayed * @attr: pointer to device attribute * @buf: buffer into which the TID should be printed * * Returns the number of bytes which are printed into the buffer. */ -static ssize_t i2o_device_show_tid(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t tid_show(struct device *dev, struct device_attribute *attr, + char *buf) { struct i2o_device *i2o_dev = to_i2o_device(dev); sprintf(buf, "0x%03x\n", i2o_dev->lct_data.tid); return strlen(buf) + 1; } +static DEVICE_ATTR_RO(tid); /* I2O device attributes */ -struct device_attribute i2o_device_attrs[] = { - __ATTR(class_id, S_IRUGO, i2o_device_show_class_id, NULL), - __ATTR(tid, S_IRUGO, i2o_device_show_tid, NULL), - __ATTR_NULL +static struct attribute *i2o_device_attrs[] = { + &dev_attr_class_id.attr, + &dev_attr_tid.attr, + NULL, +}; + +static const struct attribute_group i2o_device_group = { + .attrs = i2o_device_attrs, +}; + +const struct attribute_group *i2o_device_groups[] = { + &i2o_device_group, + NULL, }; /** diff --git a/drivers/message/i2o/driver.c b/drivers/message/i2o/driver.c index 813eaa33fa14..b6b92d760510 100644 --- a/drivers/message/i2o/driver.c +++ b/drivers/message/i2o/driver.c @@ -62,7 +62,7 @@ static int i2o_bus_match(struct device *dev, struct device_driver *drv) struct bus_type i2o_bus_type = { .name = "i2o", .match = i2o_bus_match, - .dev_attrs = i2o_device_attrs + .dev_groups = i2o_device_groups, }; /** diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 8dacd4c9ee87..e760715bd9cb 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -537,4 +537,5 @@ source "drivers/misc/carma/Kconfig" source "drivers/misc/altera-stapl/Kconfig" source "drivers/misc/mei/Kconfig" source "drivers/misc/vmw_vmci/Kconfig" +source "drivers/misc/mic/Kconfig" endmenu diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index c235d5b68311..0b7ea3ea8bb8 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -53,3 +53,4 @@ obj-$(CONFIG_INTEL_MEI) += mei/ obj-$(CONFIG_VMWARE_VMCI) += vmw_vmci/ obj-$(CONFIG_LATTICE_ECP3_CONFIG) += lattice-ecp3-config.o obj-$(CONFIG_SRAM) += sram.o +obj-y += mic/ diff --git a/drivers/misc/arm-charlcd.c b/drivers/misc/arm-charlcd.c index 1256a4bf1c04..b7ebf8021d99 100644 --- a/drivers/misc/arm-charlcd.c +++ b/drivers/misc/arm-charlcd.c @@ -297,7 +297,7 @@ static int __init charlcd_probe(struct platform_device *pdev) lcd->irq = platform_get_irq(pdev, 0); /* If no IRQ is supplied, we'll survive without it */ if (lcd->irq >= 0) { - if (request_irq(lcd->irq, charlcd_interrupt, IRQF_DISABLED, + if (request_irq(lcd->irq, charlcd_interrupt, 0, DRIVERNAME, lcd)) { ret = -EIO; goto out_no_irq; diff --git a/drivers/misc/atmel_pwm.c b/drivers/misc/atmel_pwm.c index 494d0500bda6..a6dc56e1bc58 100644 --- a/drivers/misc/atmel_pwm.c +++ b/drivers/misc/atmel_pwm.c @@ -90,8 +90,10 @@ int pwm_channel_alloc(int index, struct pwm_channel *ch) unsigned long flags; int status = 0; - /* insist on PWM init, with this signal pinned out */ - if (!pwm || !(pwm->mask & 1 << index)) + if (!pwm) + return -EPROBE_DEFER; + + if (!(pwm->mask & 1 << index)) return -ENODEV; if (index < 0 || index >= PWM_NCHAN || !ch) diff --git a/drivers/misc/bh1780gli.c b/drivers/misc/bh1780gli.c index 057580e026c0..48ea33d15a79 100644 --- a/drivers/misc/bh1780gli.c +++ b/drivers/misc/bh1780gli.c @@ -23,6 +23,7 @@ #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/module.h> +#include <linux/of.h> #define BH1780_REG_CONTROL 0x80 #define BH1780_REG_PARTID 0x8A @@ -244,6 +245,15 @@ static const struct i2c_device_id bh1780_id[] = { { }, }; +#ifdef CONFIG_OF +static const struct of_device_id of_bh1780_match[] = { + { .compatible = "rohm,bh1780gli", }, + {}, +}; + +MODULE_DEVICE_TABLE(of, of_bh1780_match); +#endif + static struct i2c_driver bh1780_driver = { .probe = bh1780_probe, .remove = bh1780_remove, @@ -251,6 +261,7 @@ static struct i2c_driver bh1780_driver = { .driver = { .name = "bh1780", .pm = &bh1780_pm, + .of_match_table = of_match_ptr(of_bh1780_match), }, }; diff --git a/drivers/misc/bmp085.c b/drivers/misc/bmp085.c index 849e2fed4da2..2704d885a9b3 100644 --- a/drivers/misc/bmp085.c +++ b/drivers/misc/bmp085.c @@ -374,7 +374,7 @@ int bmp085_detect(struct device *dev) } EXPORT_SYMBOL_GPL(bmp085_detect); -static void __init bmp085_get_of_properties(struct bmp085_data *data) +static void bmp085_get_of_properties(struct bmp085_data *data) { #ifdef CONFIG_OF struct device_node *np = data->dev->of_node; diff --git a/drivers/misc/cb710/core.c b/drivers/misc/cb710/core.c index 2e50f811ff59..fb397e7d1cce 100644 --- a/drivers/misc/cb710/core.c +++ b/drivers/misc/cb710/core.c @@ -176,7 +176,7 @@ static int cb710_suspend(struct pci_dev *pdev, pm_message_t state) { struct cb710_chip *chip = pci_get_drvdata(pdev); - free_irq(pdev->irq, chip); + devm_free_irq(&pdev->dev, pdev->irq, chip); pci_save_state(pdev); pci_disable_device(pdev); if (state.event & PM_EVENT_SLEEP) diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig index 04f2e1fa9dd1..9536852fd4c6 100644 --- a/drivers/misc/eeprom/Kconfig +++ b/drivers/misc/eeprom/Kconfig @@ -96,4 +96,17 @@ config EEPROM_DIGSY_MTC_CFG If unsure, say N. +config EEPROM_SUNXI_SID + tristate "Allwinner sunxi security ID support" + depends on ARCH_SUNXI && SYSFS + help + This is a driver for the 'security ID' available on various Allwinner + devices. + + Due to the potential risks involved with changing e-fuses, + this driver is read-only. + + This driver can also be built as a module. If so, the module + will be called sunxi_sid. + endmenu diff --git a/drivers/misc/eeprom/Makefile b/drivers/misc/eeprom/Makefile index fc1e81d29267..9507aec95e94 100644 --- a/drivers/misc/eeprom/Makefile +++ b/drivers/misc/eeprom/Makefile @@ -4,4 +4,5 @@ obj-$(CONFIG_EEPROM_LEGACY) += eeprom.o obj-$(CONFIG_EEPROM_MAX6875) += max6875.o obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o obj-$(CONFIG_EEPROM_93XX46) += eeprom_93xx46.o +obj-$(CONFIG_EEPROM_SUNXI_SID) += sunxi_sid.o obj-$(CONFIG_EEPROM_DIGSY_MTC_CFG) += digsy_mtc_eeprom.o diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c index 5d4fd69d04ca..94b8a3324319 100644 --- a/drivers/misc/eeprom/at24.c +++ b/drivers/misc/eeprom/at24.c @@ -428,6 +428,9 @@ static ssize_t at24_bin_write(struct file *filp, struct kobject *kobj, { struct at24_data *at24; + if (unlikely(off >= attr->size)) + return -EFBIG; + at24 = dev_get_drvdata(container_of(kobj, struct device, kobj)); return at24_write(at24, buf, off, count); } diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c index 840b3594a5ae..4f3bca1003a1 100644 --- a/drivers/misc/eeprom/at25.c +++ b/drivers/misc/eeprom/at25.c @@ -462,10 +462,17 @@ static int at25_remove(struct spi_device *spi) /*-------------------------------------------------------------------------*/ +static const struct of_device_id at25_of_match[] = { + { .compatible = "atmel,at25", }, + { } +}; +MODULE_DEVICE_TABLE(of, at25_of_match); + static struct spi_driver at25_driver = { .driver = { .name = "at25", .owner = THIS_MODULE, + .of_match_table = at25_of_match, }, .probe = at25_probe, .remove = at25_remove, diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c index 94cfc1212577..3a015abb444a 100644 --- a/drivers/misc/eeprom/eeprom_93xx46.c +++ b/drivers/misc/eeprom/eeprom_93xx46.c @@ -202,7 +202,7 @@ eeprom_93xx46_bin_write(struct file *filp, struct kobject *kobj, edev = dev_get_drvdata(dev); if (unlikely(off >= edev->bin.size)) - return 0; + return -EFBIG; if ((off + count) > edev->bin.size) count = edev->bin.size - off; if (unlikely(!count)) diff --git a/drivers/misc/eeprom/sunxi_sid.c b/drivers/misc/eeprom/sunxi_sid.c new file mode 100644 index 000000000000..9c34e5704304 --- /dev/null +++ b/drivers/misc/eeprom/sunxi_sid.c @@ -0,0 +1,158 @@ +/* + * Copyright (c) 2013 Oliver Schinagl <oliver@schinagl.nl> + * http://www.linux-sunxi.org + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * This driver exposes the Allwinner security ID, efuses exported in byte- + * sized chunks. + */ + +#include <linux/compiler.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/export.h> +#include <linux/fs.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/kobject.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/random.h> +#include <linux/slab.h> +#include <linux/stat.h> +#include <linux/sysfs.h> +#include <linux/types.h> + +#define DRV_NAME "sunxi-sid" + +struct sunxi_sid_data { + void __iomem *reg_base; + unsigned int keysize; +}; + +/* We read the entire key, due to a 32 bit read alignment requirement. Since we + * want to return the requested byte, this results in somewhat slower code and + * uses 4 times more reads as needed but keeps code simpler. Since the SID is + * only very rarely probed, this is not really an issue. + */ +static u8 sunxi_sid_read_byte(const struct sunxi_sid_data *sid_data, + const unsigned int offset) +{ + u32 sid_key; + + if (offset >= sid_data->keysize) + return 0; + + sid_key = ioread32be(sid_data->reg_base + round_down(offset, 4)); + sid_key >>= (offset % 4) * 8; + + return sid_key; /* Only return the last byte */ +} + +static ssize_t sid_read(struct file *fd, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t pos, size_t size) +{ + struct platform_device *pdev; + struct sunxi_sid_data *sid_data; + int i; + + pdev = to_platform_device(kobj_to_dev(kobj)); + sid_data = platform_get_drvdata(pdev); + + if (pos < 0 || pos >= sid_data->keysize) + return 0; + if (size > sid_data->keysize - pos) + size = sid_data->keysize - pos; + + for (i = 0; i < size; i++) + buf[i] = sunxi_sid_read_byte(sid_data, pos + i); + + return i; +} + +static struct bin_attribute sid_bin_attr = { + .attr = { .name = "eeprom", .mode = S_IRUGO, }, + .read = sid_read, +}; + +static int sunxi_sid_remove(struct platform_device *pdev) +{ + device_remove_bin_file(&pdev->dev, &sid_bin_attr); + dev_dbg(&pdev->dev, "driver unloaded\n"); + + return 0; +} + +static const struct of_device_id sunxi_sid_of_match[] = { + { .compatible = "allwinner,sun4i-sid", .data = (void *)16}, + { .compatible = "allwinner,sun7i-a20-sid", .data = (void *)512}, + {/* sentinel */}, +}; +MODULE_DEVICE_TABLE(of, sunxi_sid_of_match); + +static int sunxi_sid_probe(struct platform_device *pdev) +{ + struct sunxi_sid_data *sid_data; + struct resource *res; + const struct of_device_id *of_dev_id; + u8 *entropy; + unsigned int i; + + sid_data = devm_kzalloc(&pdev->dev, sizeof(struct sunxi_sid_data), + GFP_KERNEL); + if (!sid_data) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + sid_data->reg_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(sid_data->reg_base)) + return PTR_ERR(sid_data->reg_base); + + of_dev_id = of_match_device(sunxi_sid_of_match, &pdev->dev); + if (!of_dev_id) + return -ENODEV; + sid_data->keysize = (int)of_dev_id->data; + + platform_set_drvdata(pdev, sid_data); + + sid_bin_attr.size = sid_data->keysize; + if (device_create_bin_file(&pdev->dev, &sid_bin_attr)) + return -ENODEV; + + entropy = kzalloc(sizeof(u8) * sid_data->keysize, GFP_KERNEL); + for (i = 0; i < sid_data->keysize; i++) + entropy[i] = sunxi_sid_read_byte(sid_data, i); + add_device_randomness(entropy, sid_data->keysize); + kfree(entropy); + + dev_dbg(&pdev->dev, "loaded\n"); + + return 0; +} + +static struct platform_driver sunxi_sid_driver = { + .probe = sunxi_sid_probe, + .remove = sunxi_sid_remove, + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = sunxi_sid_of_match, + }, +}; +module_platform_driver(sunxi_sid_driver); + +MODULE_AUTHOR("Oliver Schinagl <oliver@schinagl.nl>"); +MODULE_DESCRIPTION("Allwinner sunxi security id driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/misc/ibmasm/module.c b/drivers/misc/ibmasm/module.c index 0346d87c5fed..6b3bf9ab051d 100644 --- a/drivers/misc/ibmasm/module.c +++ b/drivers/misc/ibmasm/module.c @@ -153,7 +153,6 @@ error_ioremap: error_heartbeat: ibmasm_event_buffer_exit(sp); error_eventbuffer: - pci_set_drvdata(pdev, NULL); kfree(sp); error_kmalloc: pci_release_regions(pdev); @@ -165,7 +164,7 @@ error_resources: static void ibmasm_remove_one(struct pci_dev *pdev) { - struct service_processor *sp = (struct service_processor *)pci_get_drvdata(pdev); + struct service_processor *sp = pci_get_drvdata(pdev); dbg("Unregistering UART\n"); ibmasm_unregister_uart(sp); @@ -182,7 +181,6 @@ static void ibmasm_remove_one(struct pci_dev *pdev) ibmasm_free_remote_input_dev(sp); iounmap(sp->base_address); ibmasm_event_buffer_exit(sp); - pci_set_drvdata(pdev, NULL); kfree(sp); pci_release_regions(pdev); pci_disable_device(pdev); diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c index 2fc0586ce3bb..a2edb2ee0921 100644 --- a/drivers/misc/lkdtm.c +++ b/drivers/misc/lkdtm.c @@ -44,13 +44,25 @@ #include <scsi/scsi_cmnd.h> #include <linux/debugfs.h> #include <linux/vmalloc.h> +#include <linux/mman.h> #ifdef CONFIG_IDE #include <linux/ide.h> #endif +/* + * Make sure our attempts to over run the kernel stack doesn't trigger + * a compiler warning when CONFIG_FRAME_WARN is set. Then make sure we + * recurse past the end of THREAD_SIZE by default. + */ +#if defined(CONFIG_FRAME_WARN) && (CONFIG_FRAME_WARN > 0) +#define REC_STACK_SIZE (CONFIG_FRAME_WARN / 2) +#else +#define REC_STACK_SIZE (THREAD_SIZE / 8) +#endif +#define REC_NUM_DEFAULT ((THREAD_SIZE / REC_STACK_SIZE) * 2) + #define DEFAULT_COUNT 10 -#define REC_NUM_DEFAULT 10 #define EXEC_SIZE 64 enum cname { @@ -86,6 +98,9 @@ enum ctype { CT_EXEC_STACK, CT_EXEC_KMALLOC, CT_EXEC_VMALLOC, + CT_EXEC_USERSPACE, + CT_ACCESS_USERSPACE, + CT_WRITE_RO, }; static char* cp_name[] = { @@ -119,6 +134,9 @@ static char* cp_type[] = { "EXEC_STACK", "EXEC_KMALLOC", "EXEC_VMALLOC", + "EXEC_USERSPACE", + "ACCESS_USERSPACE", + "WRITE_RO", }; static struct jprobe lkdtm; @@ -139,9 +157,10 @@ static DEFINE_SPINLOCK(lock_me_up); static u8 data_area[EXEC_SIZE]; +static const unsigned long rodata = 0xAA55AA55; + module_param(recur_count, int, 0644); -MODULE_PARM_DESC(recur_count, " Recursion level for the stack overflow test, "\ - "default is 10"); +MODULE_PARM_DESC(recur_count, " Recursion level for the stack overflow test"); module_param(cpoint_name, charp, 0444); MODULE_PARM_DESC(cpoint_name, " Crash Point, where kernel is to be crashed"); module_param(cpoint_type, charp, 0444); @@ -280,16 +299,16 @@ static int lkdtm_parse_commandline(void) return -EINVAL; } -static int recursive_loop(int a) +static int recursive_loop(int remaining) { - char buf[1024]; + char buf[REC_STACK_SIZE]; - memset(buf,0xFF,1024); - recur_count--; - if (!recur_count) + /* Make sure compiler does not optimize this away. */ + memset(buf, (remaining & 0xff) | 0x1, REC_STACK_SIZE); + if (!remaining) return 0; else - return recursive_loop(a); + return recursive_loop(remaining - 1); } static void do_nothing(void) @@ -297,6 +316,14 @@ static void do_nothing(void) return; } +static noinline void corrupt_stack(void) +{ + /* Use default char array length that triggers stack protection. */ + char data[8]; + + memset((void *)data, 0, 64); +} + static void execute_location(void *dst) { void (*func)(void) = dst; @@ -305,6 +332,15 @@ static void execute_location(void *dst) func(); } +static void execute_user_location(void *dst) +{ + void (*func)(void) = dst; + + if (copy_to_user(dst, do_nothing, EXEC_SIZE)) + return; + func(); +} + static void lkdtm_do_action(enum ctype which) { switch (which) { @@ -325,15 +361,11 @@ static void lkdtm_do_action(enum ctype which) ; break; case CT_OVERFLOW: - (void) recursive_loop(0); + (void) recursive_loop(recur_count); break; - case CT_CORRUPT_STACK: { - /* Make sure the compiler creates and uses an 8 char array. */ - volatile char data[8]; - - memset((void *)data, 0, 64); + case CT_CORRUPT_STACK: + corrupt_stack(); break; - } case CT_UNALIGNED_LOAD_STORE_WRITE: { static u8 data[5] __attribute__((aligned(4))) = {1, 2, 3, 4, 5}; @@ -401,6 +433,49 @@ static void lkdtm_do_action(enum ctype which) vfree(vmalloc_area); break; } + case CT_EXEC_USERSPACE: { + unsigned long user_addr; + + user_addr = vm_mmap(NULL, 0, PAGE_SIZE, + PROT_READ | PROT_WRITE | PROT_EXEC, + MAP_ANONYMOUS | MAP_PRIVATE, 0); + if (user_addr >= TASK_SIZE) { + pr_warn("Failed to allocate user memory\n"); + return; + } + execute_user_location((void *)user_addr); + vm_munmap(user_addr, PAGE_SIZE); + break; + } + case CT_ACCESS_USERSPACE: { + unsigned long user_addr, tmp; + unsigned long *ptr; + + user_addr = vm_mmap(NULL, 0, PAGE_SIZE, + PROT_READ | PROT_WRITE | PROT_EXEC, + MAP_ANONYMOUS | MAP_PRIVATE, 0); + if (user_addr >= TASK_SIZE) { + pr_warn("Failed to allocate user memory\n"); + return; + } + + ptr = (unsigned long *)user_addr; + tmp = *ptr; + tmp += 0xc0dec0de; + *ptr = tmp; + + vm_munmap(user_addr, PAGE_SIZE); + + break; + } + case CT_WRITE_RO: { + unsigned long *ptr; + + ptr = (unsigned long *)&rodata; + *ptr ^= 0xabcd1234; + + break; + } case CT_NONE: default: break; diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c index f6ff711aa5bb..d22c6864508b 100644 --- a/drivers/misc/mei/amthif.c +++ b/drivers/misc/mei/amthif.c @@ -58,6 +58,7 @@ void mei_amthif_reset_params(struct mei_device *dev) dev->iamthif_state = MEI_IAMTHIF_IDLE; dev->iamthif_timer = 0; dev->iamthif_stall_timer = 0; + dev->iamthif_open_count = 0; } /** @@ -78,8 +79,10 @@ int mei_amthif_host_init(struct mei_device *dev) i = mei_me_cl_by_uuid(dev, &mei_amthif_guid); if (i < 0) { - dev_info(&dev->pdev->dev, "amthif: failed to find the client\n"); - return -ENOENT; + ret = i; + dev_info(&dev->pdev->dev, + "amthif: failed to find the client %d\n", ret); + return ret; } cl->me_client_id = dev->me_clients[i].client_id; @@ -106,8 +109,9 @@ int mei_amthif_host_init(struct mei_device *dev) ret = mei_cl_link(cl, MEI_IAMTHIF_HOST_CLIENT_ID); if (ret < 0) { - dev_err(&dev->pdev->dev, "amthif: failed link client\n"); - return -ENOENT; + dev_err(&dev->pdev->dev, + "amthif: failed link client %d\n", ret); + return ret; } cl->state = MEI_FILE_CONNECTING; @@ -313,13 +317,13 @@ static int mei_amthif_send_cmd(struct mei_device *dev, struct mei_cl_cb *cb) mei_hdr.me_addr = dev->iamthif_cl.me_client_id; mei_hdr.reserved = 0; dev->iamthif_msg_buf_index += mei_hdr.length; - if (mei_write_message(dev, &mei_hdr, - (unsigned char *)dev->iamthif_msg_buf)) - return -ENODEV; + ret = mei_write_message(dev, &mei_hdr, dev->iamthif_msg_buf); + if (ret) + return ret; if (mei_hdr.msg_complete) { if (mei_cl_flow_ctrl_reduce(&dev->iamthif_cl)) - return -ENODEV; + return -EIO; dev->iamthif_flow_control_pending = true; dev->iamthif_state = MEI_IAMTHIF_FLOW_CONTROL; dev_dbg(&dev->pdev->dev, "add amthif cb to write waiting list\n"); @@ -459,6 +463,16 @@ int mei_amthif_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb, struct mei_msg_hdr mei_hdr; size_t len = dev->iamthif_msg_buf_size - dev->iamthif_msg_buf_index; u32 msg_slots = mei_data2slots(len); + int rets; + + rets = mei_cl_flow_ctrl_creds(cl); + if (rets < 0) + return rets; + + if (rets == 0) { + cl_dbg(dev, cl, "No flow control credentials: not sending.\n"); + return 0; + } mei_hdr.host_addr = cl->host_client_id; mei_hdr.me_addr = cl->me_client_id; @@ -481,16 +495,17 @@ int mei_amthif_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb, dev_dbg(&dev->pdev->dev, MEI_HDR_FMT, MEI_HDR_PRM(&mei_hdr)); *slots -= msg_slots; - if (mei_write_message(dev, &mei_hdr, - dev->iamthif_msg_buf + dev->iamthif_msg_buf_index)) { - dev->iamthif_state = MEI_IAMTHIF_IDLE; - cl->status = -ENODEV; - list_del(&cb->list); - return -ENODEV; + rets = mei_write_message(dev, &mei_hdr, + dev->iamthif_msg_buf + dev->iamthif_msg_buf_index); + if (rets) { + dev->iamthif_state = MEI_IAMTHIF_IDLE; + cl->status = rets; + list_del(&cb->list); + return rets; } if (mei_cl_flow_ctrl_reduce(cl)) - return -ENODEV; + return -EIO; dev->iamthif_msg_buf_index += mei_hdr.length; cl->status = 0; @@ -720,8 +735,8 @@ static bool mei_clear_lists(struct mei_device *dev, struct file *file) */ int mei_amthif_release(struct mei_device *dev, struct file *file) { - if (dev->open_handle_count > 0) - dev->open_handle_count--; + if (dev->iamthif_open_count > 0) + dev->iamthif_open_count--; if (dev->iamthif_file_object == file && dev->iamthif_state != MEI_IAMTHIF_IDLE) { diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index cd2033cd7120..4bc7d620d695 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -245,7 +245,7 @@ static int ___mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length, /* Check if we have an ME client device */ id = mei_me_cl_by_id(dev, cl->me_client_id); if (id < 0) - return -ENODEV; + return id; if (length > dev->me_clients[id].props.max_msg_length) return -EINVAL; diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index e0684b4d9a08..87c96e4669e2 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -187,10 +187,14 @@ int mei_io_cb_alloc_resp_buf(struct mei_cl_cb *cb, size_t length) */ int mei_cl_flush_queues(struct mei_cl *cl) { + struct mei_device *dev; + if (WARN_ON(!cl || !cl->dev)) return -EINVAL; - dev_dbg(&cl->dev->pdev->dev, "remove list entry belonging to cl\n"); + dev = cl->dev; + + cl_dbg(dev, cl, "remove list entry belonging to cl\n"); mei_io_list_flush(&cl->dev->read_list, cl); mei_io_list_flush(&cl->dev->write_list, cl); mei_io_list_flush(&cl->dev->write_waiting_list, cl); @@ -271,6 +275,7 @@ struct mei_cl_cb *mei_cl_find_read_cb(struct mei_cl *cl) int mei_cl_link(struct mei_cl *cl, int id) { struct mei_device *dev; + long open_handle_count; if (WARN_ON(!cl || !cl->dev)) return -EINVAL; @@ -284,7 +289,14 @@ int mei_cl_link(struct mei_cl *cl, int id) if (id >= MEI_CLIENTS_MAX) { dev_err(&dev->pdev->dev, "id exceded %d", MEI_CLIENTS_MAX) ; - return -ENOENT; + return -EMFILE; + } + + open_handle_count = dev->open_handle_count + dev->iamthif_open_count; + if (open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) { + dev_err(&dev->pdev->dev, "open_handle_count exceded %d", + MEI_MAX_OPEN_HANDLE_COUNT); + return -EMFILE; } dev->open_handle_count++; @@ -296,7 +308,7 @@ int mei_cl_link(struct mei_cl *cl, int id) cl->state = MEI_FILE_INITIALIZING; - dev_dbg(&dev->pdev->dev, "link cl host id = %d\n", cl->host_client_id); + cl_dbg(dev, cl, "link cl\n"); return 0; } @@ -308,7 +320,6 @@ int mei_cl_link(struct mei_cl *cl, int id) int mei_cl_unlink(struct mei_cl *cl) { struct mei_device *dev; - struct mei_cl *pos, *next; /* don't shout on error exit path */ if (!cl) @@ -320,14 +331,21 @@ int mei_cl_unlink(struct mei_cl *cl) dev = cl->dev; - list_for_each_entry_safe(pos, next, &dev->file_list, link) { - if (cl->host_client_id == pos->host_client_id) { - dev_dbg(&dev->pdev->dev, "remove host client = %d, ME client = %d\n", - pos->host_client_id, pos->me_client_id); - list_del_init(&pos->link); - break; - } - } + cl_dbg(dev, cl, "unlink client"); + + if (dev->open_handle_count > 0) + dev->open_handle_count--; + + /* never clear the 0 bit */ + if (cl->host_client_id) + clear_bit(cl->host_client_id, dev->host_clients_map); + + list_del_init(&cl->link); + + cl->state = MEI_FILE_INITIALIZING; + + list_del_init(&cl->link); + return 0; } @@ -341,17 +359,6 @@ void mei_host_client_init(struct work_struct *work) mutex_lock(&dev->device_lock); - bitmap_zero(dev->host_clients_map, MEI_CLIENTS_MAX); - dev->open_handle_count = 0; - - /* - * Reserving the first three client IDs - * 0: Reserved for MEI Bus Message communications - * 1: Reserved for Watchdog - * 2: Reserved for AMTHI - */ - bitmap_set(dev->host_clients_map, 0, 3); - for (i = 0; i < dev->me_clients_num; i++) { client_props = &dev->me_clients[i].props; @@ -390,6 +397,8 @@ int mei_cl_disconnect(struct mei_cl *cl) dev = cl->dev; + cl_dbg(dev, cl, "disconnecting"); + if (cl->state != MEI_FILE_DISCONNECTING) return 0; @@ -402,13 +411,13 @@ int mei_cl_disconnect(struct mei_cl *cl) dev->hbuf_is_ready = false; if (mei_hbm_cl_disconnect_req(dev, cl)) { rets = -ENODEV; - dev_err(&dev->pdev->dev, "failed to disconnect.\n"); + cl_err(dev, cl, "failed to disconnect.\n"); goto free; } mdelay(10); /* Wait for hardware disconnection ready */ list_add_tail(&cb->list, &dev->ctrl_rd_list.list); } else { - dev_dbg(&dev->pdev->dev, "add disconnect cb to control write list\n"); + cl_dbg(dev, cl, "add disconnect cb to control write list\n"); list_add_tail(&cb->list, &dev->ctrl_wr_list.list); } @@ -421,18 +430,17 @@ int mei_cl_disconnect(struct mei_cl *cl) mutex_lock(&dev->device_lock); if (MEI_FILE_DISCONNECTED == cl->state) { rets = 0; - dev_dbg(&dev->pdev->dev, "successfully disconnected from FW client.\n"); + cl_dbg(dev, cl, "successfully disconnected from FW client.\n"); } else { rets = -ENODEV; if (MEI_FILE_DISCONNECTED != cl->state) - dev_dbg(&dev->pdev->dev, "wrong status client disconnect.\n"); + cl_err(dev, cl, "wrong status client disconnect.\n"); if (err) - dev_dbg(&dev->pdev->dev, - "wait failed disconnect err=%08x\n", + cl_dbg(dev, cl, "wait failed disconnect err=%08x\n", err); - dev_dbg(&dev->pdev->dev, "failed to disconnect from FW client.\n"); + cl_err(dev, cl, "failed to disconnect from FW client.\n"); } mei_io_list_flush(&dev->ctrl_rd_list, cl); @@ -639,13 +647,12 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length) return -ENODEV; if (cl->read_cb) { - dev_dbg(&dev->pdev->dev, "read is pending.\n"); + cl_dbg(dev, cl, "read is pending.\n"); return -EBUSY; } i = mei_me_cl_by_id(dev, cl->me_client_id); if (i < 0) { - dev_err(&dev->pdev->dev, "no such me client %d\n", - cl->me_client_id); + cl_err(dev, cl, "no such me client %d\n", cl->me_client_id); return -ENODEV; } @@ -664,6 +671,7 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length) if (dev->hbuf_is_ready) { dev->hbuf_is_ready = false; if (mei_hbm_cl_flow_control_req(dev, cl)) { + cl_err(dev, cl, "flow control send failed\n"); rets = -ENODEV; goto err; } @@ -691,10 +699,32 @@ err: int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb, s32 *slots, struct mei_cl_cb *cmpl_list) { - struct mei_device *dev = cl->dev; + struct mei_device *dev; + struct mei_msg_data *buf; struct mei_msg_hdr mei_hdr; - size_t len = cb->request_buffer.size - cb->buf_idx; - u32 msg_slots = mei_data2slots(len); + size_t len; + u32 msg_slots; + int rets; + + + if (WARN_ON(!cl || !cl->dev)) + return -ENODEV; + + dev = cl->dev; + + buf = &cb->request_buffer; + + rets = mei_cl_flow_ctrl_creds(cl); + if (rets < 0) + return rets; + + if (rets == 0) { + cl_dbg(dev, cl, "No flow control credentials: not sending.\n"); + return 0; + } + + len = buf->size - cb->buf_idx; + msg_slots = mei_data2slots(len); mei_hdr.host_addr = cl->host_client_id; mei_hdr.me_addr = cl->me_client_id; @@ -714,16 +744,15 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb, return 0; } - dev_dbg(&dev->pdev->dev, "buf: size = %d idx = %lu\n", + cl_dbg(dev, cl, "buf: size = %d idx = %lu\n", cb->request_buffer.size, cb->buf_idx); - dev_dbg(&dev->pdev->dev, MEI_HDR_FMT, MEI_HDR_PRM(&mei_hdr)); *slots -= msg_slots; - if (mei_write_message(dev, &mei_hdr, - cb->request_buffer.data + cb->buf_idx)) { - cl->status = -ENODEV; + rets = mei_write_message(dev, &mei_hdr, buf->data + cb->buf_idx); + if (rets) { + cl->status = rets; list_move_tail(&cb->list, &cmpl_list->list); - return -ENODEV; + return rets; } cl->status = 0; @@ -732,7 +761,7 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb, if (mei_hdr.msg_complete) { if (mei_cl_flow_ctrl_reduce(cl)) - return -ENODEV; + return -EIO; list_move_tail(&cb->list, &dev->write_waiting_list.list); } @@ -767,7 +796,7 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking) buf = &cb->request_buffer; - dev_dbg(&dev->pdev->dev, "mei_cl_write %d\n", buf->size); + cl_dbg(dev, cl, "mei_cl_write %d\n", buf->size); cb->fop_type = MEI_FOP_WRITE; @@ -800,14 +829,10 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking) mei_hdr.me_addr = cl->me_client_id; mei_hdr.reserved = 0; - dev_dbg(&dev->pdev->dev, "write " MEI_HDR_FMT "\n", - MEI_HDR_PRM(&mei_hdr)); - - if (mei_write_message(dev, &mei_hdr, buf->data)) { - rets = -EIO; + rets = mei_write_message(dev, &mei_hdr, buf->data); + if (rets) goto err; - } cl->writing_state = MEI_WRITING; cb->buf_idx = mei_hdr.length; @@ -898,11 +923,11 @@ void mei_cl_all_wakeup(struct mei_device *dev) struct mei_cl *cl, *next; list_for_each_entry_safe(cl, next, &dev->file_list, link) { if (waitqueue_active(&cl->rx_wait)) { - dev_dbg(&dev->pdev->dev, "Waking up reading client!\n"); + cl_dbg(dev, cl, "Waking up reading client!\n"); wake_up_interruptible(&cl->rx_wait); } if (waitqueue_active(&cl->tx_wait)) { - dev_dbg(&dev->pdev->dev, "Waking up writing client!\n"); + cl_dbg(dev, cl, "Waking up writing client!\n"); wake_up_interruptible(&cl->tx_wait); } } diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h index 892cc4207fa2..c8396e582f1c 100644 --- a/drivers/misc/mei/client.h +++ b/drivers/misc/mei/client.h @@ -115,4 +115,13 @@ void mei_cl_all_disconnect(struct mei_device *dev); void mei_cl_all_wakeup(struct mei_device *dev); void mei_cl_all_write_clear(struct mei_device *dev); +#define MEI_CL_FMT "cl:host=%02d me=%02d " +#define MEI_CL_PRM(cl) (cl)->host_client_id, (cl)->me_client_id + +#define cl_dbg(dev, cl, format, arg...) \ + dev_dbg(&(dev)->pdev->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg) + +#define cl_err(dev, cl, format, arg...) \ + dev_err(&(dev)->pdev->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg) + #endif /* _MEI_CLIENT_H_ */ diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c index 0a0448326e9d..9b3a0fb7f265 100644 --- a/drivers/misc/mei/hbm.c +++ b/drivers/misc/mei/hbm.c @@ -49,7 +49,7 @@ static void mei_hbm_me_cl_allocate(struct mei_device *dev) kfree(dev->me_clients); dev->me_clients = NULL; - dev_dbg(&dev->pdev->dev, "memory allocation for ME clients size=%zd.\n", + dev_dbg(&dev->pdev->dev, "memory allocation for ME clients size=%ld.\n", dev->me_clients_num * sizeof(struct mei_me_client)); /* allocate storage for ME clients representation */ clients = kcalloc(dev->me_clients_num, @@ -174,7 +174,7 @@ int mei_hbm_start_req(struct mei_device *dev) dev_err(&dev->pdev->dev, "version message write failed\n"); dev->dev_state = MEI_DEV_RESETTING; mei_reset(dev, 1); - return -ENODEV; + return -EIO; } dev->hbm_state = MEI_HBM_START; dev->init_clients_timer = MEI_CLIENTS_INIT_TIMEOUT; @@ -677,7 +677,10 @@ void mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr) case HOST_ENUM_RES_CMD: enum_res = (struct hbm_host_enum_response *) mei_msg; - memcpy(dev->me_clients_map, enum_res->valid_addresses, 32); + BUILD_BUG_ON(sizeof(dev->me_clients_map) + < sizeof(enum_res->valid_addresses)); + memcpy(dev->me_clients_map, enum_res->valid_addresses, + sizeof(enum_res->valid_addresses)); if (dev->dev_state == MEI_DEV_INIT_CLIENTS && dev->hbm_state == MEI_HBM_ENUM_CLIENTS) { dev->init_clients_timer = 0; diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h index 6a203b6e8346..6c0fde55270d 100644 --- a/drivers/misc/mei/hw-me-regs.h +++ b/drivers/misc/mei/hw-me-regs.h @@ -110,6 +110,7 @@ #define MEI_DEV_ID_PPT_3 0x1DBA /* Panther Point */ #define MEI_DEV_ID_LPT 0x8C3A /* Lynx Point */ +#define MEI_DEV_ID_LPT_W 0x8D3A /* Lynx Point - Wellsburg */ #define MEI_DEV_ID_LPT_LP 0x9C3A /* Lynx Point LP */ /* * MEI HW Section diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index 6197018e2f16..f7f3abbe12b6 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -68,6 +68,14 @@ void mei_device_init(struct mei_device *dev) mei_io_list_init(&dev->amthif_cmd_list); mei_io_list_init(&dev->amthif_rd_complete_list); + bitmap_zero(dev->host_clients_map, MEI_CLIENTS_MAX); + dev->open_handle_count = 0; + + /* + * Reserving the first client ID + * 0: Reserved for MEI Bus Message communications + */ + bitmap_set(dev->host_clients_map, 0, 1); } EXPORT_SYMBOL_GPL(mei_device_init); @@ -139,6 +147,10 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) dev->dev_state != MEI_DEV_POWER_DOWN && dev->dev_state != MEI_DEV_POWER_UP); + if (unexpected) + dev_warn(&dev->pdev->dev, "unexpected reset: dev_state = %s\n", + mei_dev_state_str(dev->dev_state)); + ret = mei_hw_reset(dev, interrupts_enabled); if (ret) { dev_err(&dev->pdev->dev, "hw reset failed disabling the device\n"); @@ -165,12 +177,7 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) /* remove entry if already in list */ dev_dbg(&dev->pdev->dev, "remove iamthif and wd from the file list.\n"); mei_cl_unlink(&dev->wd_cl); - if (dev->open_handle_count > 0) - dev->open_handle_count--; mei_cl_unlink(&dev->iamthif_cl); - if (dev->open_handle_count > 0) - dev->open_handle_count--; - mei_amthif_reset_params(dev); memset(&dev->wr_ext_msg, 0, sizeof(dev->wr_ext_msg)); } @@ -182,10 +189,6 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) dev->rd_msg_hdr = 0; dev->wd_pending = false; - if (unexpected) - dev_warn(&dev->pdev->dev, "unexpected reset: dev_state = %s\n", - mei_dev_state_str(dev->dev_state)); - if (!interrupts_enabled) { dev_dbg(&dev->pdev->dev, "intr not enabled end of reset\n"); return; diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index 4b59cb742dee..7a95c07e59a6 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -113,13 +113,13 @@ static int mei_cl_irq_read_msg(struct mei_device *dev, if (cb->response_buffer.size == 0 || cb->response_buffer.data == NULL) { - dev_err(&dev->pdev->dev, "response buffer is not allocated.\n"); + cl_err(dev, cl, "response buffer is not allocated.\n"); list_del(&cb->list); return -ENOMEM; } if (cb->response_buffer.size < mei_hdr->length + cb->buf_idx) { - dev_dbg(&dev->pdev->dev, "message overflow. size %d len %d idx %ld\n", + cl_dbg(dev, cl, "message overflow. size %d len %d idx %ld\n", cb->response_buffer.size, mei_hdr->length, cb->buf_idx); buffer = krealloc(cb->response_buffer.data, @@ -127,7 +127,7 @@ static int mei_cl_irq_read_msg(struct mei_device *dev, GFP_KERNEL); if (!buffer) { - dev_err(&dev->pdev->dev, "allocation failed.\n"); + cl_err(dev, cl, "allocation failed.\n"); list_del(&cb->list); return -ENOMEM; } @@ -143,9 +143,7 @@ static int mei_cl_irq_read_msg(struct mei_device *dev, if (mei_hdr->msg_complete) { cl->status = 0; list_del(&cb->list); - dev_dbg(&dev->pdev->dev, "completed read H cl = %d, ME cl = %d, length = %lu\n", - cl->host_client_id, - cl->me_client_id, + cl_dbg(dev, cl, "completed read length = %lu\n", cb->buf_idx); list_add_tail(&cb->list, &complete_list->list); } @@ -218,9 +216,11 @@ static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb, s32 *slots, struct mei_cl_cb *cmpl_list) { struct mei_device *dev = cl->dev; - u32 msg_slots = mei_data2slots(sizeof(struct hbm_flow_control)); + int ret; + + if (*slots < msg_slots) { /* return the cancel routine */ list_del(&cb->list); @@ -229,12 +229,14 @@ static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb, *slots -= msg_slots; - if (mei_hbm_cl_flow_control_req(dev, cl)) { - cl->status = -ENODEV; + ret = mei_hbm_cl_flow_control_req(dev, cl); + if (ret) { + cl->status = ret; cb->buf_idx = 0; list_move_tail(&cb->list, &cmpl_list->list); - return -ENODEV; + return ret; } + list_move_tail(&cb->list, &dev->read_list.list); return 0; @@ -256,6 +258,7 @@ static int mei_cl_irq_ioctl(struct mei_cl *cl, struct mei_cl_cb *cb, s32 *slots, struct mei_cl_cb *cmpl_list) { struct mei_device *dev = cl->dev; + int ret; u32 msg_slots = mei_data2slots(sizeof(struct hbm_client_connect_request)); @@ -270,11 +273,12 @@ static int mei_cl_irq_ioctl(struct mei_cl *cl, struct mei_cl_cb *cb, cl->state = MEI_FILE_CONNECTING; - if (mei_hbm_cl_connect_req(dev, cl)) { - cl->status = -ENODEV; + ret = mei_hbm_cl_connect_req(dev, cl); + if (ret) { + cl->status = ret; cb->buf_idx = 0; list_del(&cb->list); - return -ENODEV; + return ret; } list_move_tail(&cb->list, &dev->ctrl_rd_list.list); @@ -345,14 +349,14 @@ int mei_irq_read_handler(struct mei_device *dev, /* decide where to read the message too */ if (!mei_hdr->host_addr) { - dev_dbg(&dev->pdev->dev, "call mei_irq_thread_read_bus_message.\n"); + dev_dbg(&dev->pdev->dev, "call mei_hbm_dispatch.\n"); mei_hbm_dispatch(dev, mei_hdr); - dev_dbg(&dev->pdev->dev, "end mei_irq_thread_read_bus_message.\n"); + dev_dbg(&dev->pdev->dev, "end mei_hbm_dispatch.\n"); } else if (mei_hdr->host_addr == dev->iamthif_cl.host_client_id && (MEI_FILE_CONNECTED == dev->iamthif_cl.state) && (dev->iamthif_state == MEI_IAMTHIF_READING)) { - dev_dbg(&dev->pdev->dev, "call mei_irq_thread_read_iamthif_message.\n"); + dev_dbg(&dev->pdev->dev, "call mei_amthif_irq_read_msg.\n"); dev_dbg(&dev->pdev->dev, MEI_HDR_FMT, MEI_HDR_PRM(mei_hdr)); ret = mei_amthif_irq_read_msg(dev, mei_hdr, cmpl_list); @@ -423,12 +427,12 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list) if (MEI_WRITING == cl->writing_state && cb->fop_type == MEI_FOP_WRITE && cl != &dev->iamthif_cl) { - dev_dbg(&dev->pdev->dev, "MEI WRITE COMPLETE\n"); + cl_dbg(dev, cl, "MEI WRITE COMPLETE\n"); cl->writing_state = MEI_WRITE_COMPLETE; list_add_tail(&cb->list, &cmpl_list->list); } if (cl == &dev->iamthif_cl) { - dev_dbg(&dev->pdev->dev, "check iamthif flow control.\n"); + cl_dbg(dev, cl, "check iamthif flow control.\n"); if (dev->iamthif_flow_control_pending) { ret = mei_amthif_irq_read(dev, &slots); if (ret) @@ -509,13 +513,6 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list) cl = cb->cl; if (cl == NULL) continue; - if (mei_cl_flow_ctrl_creds(cl) <= 0) { - dev_dbg(&dev->pdev->dev, - "No flow control credentials for client %d, not sending.\n", - cl->host_client_id); - continue; - } - if (cl == &dev->iamthif_cl) ret = mei_amthif_irq_write_complete(cl, cb, &slots, cmpl_list); diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index cabeddd66c1f..9661a812f550 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -60,48 +60,45 @@ static int mei_open(struct inode *inode, struct file *file) int err; - err = -ENODEV; if (!misc->parent) - goto out; + return -ENODEV; pdev = container_of(misc->parent, struct pci_dev, dev); dev = pci_get_drvdata(pdev); if (!dev) - goto out; + return -ENODEV; mutex_lock(&dev->device_lock); - err = -ENOMEM; - cl = mei_cl_allocate(dev); - if (!cl) - goto out_unlock; + + cl = NULL; err = -ENODEV; if (dev->dev_state != MEI_DEV_ENABLED) { dev_dbg(&dev->pdev->dev, "dev_state != MEI_ENABLED dev_state = %s\n", mei_dev_state_str(dev->dev_state)); - goto out_unlock; - } - err = -EMFILE; - if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) { - dev_err(&dev->pdev->dev, "open_handle_count exceded %d", - MEI_MAX_OPEN_HANDLE_COUNT); - goto out_unlock; + goto err_unlock; } + err = -ENOMEM; + cl = mei_cl_allocate(dev); + if (!cl) + goto err_unlock; + + /* open_handle_count check is handled in the mei_cl_link */ err = mei_cl_link(cl, MEI_HOST_CLIENT_ID_ANY); if (err) - goto out_unlock; + goto err_unlock; file->private_data = cl; + mutex_unlock(&dev->device_lock); return nonseekable_open(inode, file); -out_unlock: +err_unlock: mutex_unlock(&dev->device_lock); kfree(cl); -out: return err; } @@ -144,10 +141,6 @@ static int mei_release(struct inode *inode, struct file *file) cl->host_client_id, cl->me_client_id); - if (dev->open_handle_count > 0) { - clear_bit(cl->host_client_id, dev->host_clients_map); - dev->open_handle_count--; - } mei_cl_unlink(cl); @@ -165,10 +158,7 @@ static int mei_release(struct inode *inode, struct file *file) file->private_data = NULL; - if (cb) { - mei_io_cb_free(cb); - cb = NULL; - } + mei_io_cb_free(cb); kfree(cl); out: @@ -203,12 +193,18 @@ static ssize_t mei_read(struct file *file, char __user *ubuf, dev = cl->dev; + mutex_lock(&dev->device_lock); if (dev->dev_state != MEI_DEV_ENABLED) { rets = -ENODEV; goto out; } + if (length == 0) { + rets = 0; + goto out; + } + if (cl == &dev->iamthif_cl) { rets = mei_amthif_read(dev, file, ubuf, length, offset); goto out; @@ -347,8 +343,14 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf, rets = -ENODEV; goto out; } - if (length > dev->me_clients[id].props.max_msg_length || length <= 0) { - rets = -EMSGSIZE; + + if (length == 0) { + rets = 0; + goto out; + } + + if (length > dev->me_clients[id].props.max_msg_length) { + rets = -EFBIG; goto out; } @@ -401,8 +403,11 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf, goto out; rets = copy_from_user(write_cb->request_buffer.data, ubuf, length); - if (rets) + if (rets) { + dev_err(&dev->pdev->dev, "failed to copy data from userland\n"); + rets = -EFAULT; goto out; + } if (cl == &dev->iamthif_cl) { rets = mei_amthif_write(dev, write_cb); @@ -489,11 +494,11 @@ static int mei_ioctl_connect_client(struct file *file, rets = -ENODEV; goto end; } - clear_bit(cl->host_client_id, dev->host_clients_map); mei_cl_unlink(cl); kfree(cl); cl = NULL; + dev->iamthif_open_count++; file->private_data = &dev->iamthif_cl; client = &data->out_client_properties; @@ -564,7 +569,7 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data) dev_dbg(&dev->pdev->dev, "copy connect data from user\n"); if (copy_from_user(connect_data, (char __user *)data, sizeof(struct mei_connect_client_data))) { - dev_dbg(&dev->pdev->dev, "failed to copy data from userland\n"); + dev_err(&dev->pdev->dev, "failed to copy data from userland\n"); rets = -EFAULT; goto out; } diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h index 456b322013e2..406f68e05b4e 100644 --- a/drivers/misc/mei/mei_dev.h +++ b/drivers/misc/mei/mei_dev.h @@ -414,6 +414,7 @@ struct mei_device { struct file *iamthif_file_object; struct mei_cl iamthif_cl; struct mei_cl_cb *iamthif_current_cb; + long iamthif_open_count; int iamthif_mtu; unsigned long iamthif_timer; u32 iamthif_stall_timer; diff --git a/drivers/misc/mei/nfc.c b/drivers/misc/mei/nfc.c index d0c6907dfd92..994ca4aff1a3 100644 --- a/drivers/misc/mei/nfc.c +++ b/drivers/misc/mei/nfc.c @@ -485,8 +485,11 @@ int mei_nfc_host_init(struct mei_device *dev) if (ndev->cl_info) return 0; - cl_info = mei_cl_allocate(dev); - cl = mei_cl_allocate(dev); + ndev->cl_info = mei_cl_allocate(dev); + ndev->cl = mei_cl_allocate(dev); + + cl = ndev->cl; + cl_info = ndev->cl_info; if (!cl || !cl_info) { ret = -ENOMEM; @@ -527,10 +530,9 @@ int mei_nfc_host_init(struct mei_device *dev) cl->device_uuid = mei_nfc_guid; + list_add_tail(&cl->device_link, &dev->device_list); - ndev->cl_info = cl_info; - ndev->cl = cl; ndev->req_id = 1; INIT_WORK(&ndev->init_work, mei_nfc_init); diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c index 1b3844e82379..b96205aece0c 100644 --- a/drivers/misc/mei/pci-me.c +++ b/drivers/misc/mei/pci-me.c @@ -77,6 +77,7 @@ static DEFINE_PCI_DEVICE_TABLE(mei_me_pci_tbl) = { {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_2)}, {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_3)}, {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_W)}, {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_LP)}, /* required last entry */ @@ -189,7 +190,7 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent) schedule_delayed_work(&dev->timer_work, HZ); - pr_debug("initialization successful.\n"); + dev_dbg(&pdev->dev, "initialization successful.\n"); return 0; @@ -231,7 +232,7 @@ static void mei_me_remove(struct pci_dev *pdev) hw = to_me_hw(dev); - dev_err(&pdev->dev, "stop\n"); + dev_dbg(&pdev->dev, "stop\n"); mei_stop(dev); /* disable interrupts */ @@ -239,7 +240,6 @@ static void mei_me_remove(struct pci_dev *pdev) free_irq(pdev->irq, dev); pci_disable_msi(pdev); - pci_set_drvdata(pdev, NULL); if (hw->mem_addr) pci_iounmap(pdev, hw->mem_addr); @@ -262,7 +262,7 @@ static int mei_me_pci_suspend(struct device *device) if (!dev) return -ENODEV; - dev_err(&pdev->dev, "suspend\n"); + dev_dbg(&pdev->dev, "suspend\n"); mei_stop(dev); diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c index b8921432e89d..9e354216c163 100644 --- a/drivers/misc/mei/wd.c +++ b/drivers/misc/mei/wd.c @@ -60,7 +60,7 @@ static void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout) int mei_wd_host_init(struct mei_device *dev) { struct mei_cl *cl = &dev->wd_cl; - int i; + int id; int ret; mei_cl_init(cl, dev); @@ -70,19 +70,19 @@ int mei_wd_host_init(struct mei_device *dev) /* check for valid client id */ - i = mei_me_cl_by_uuid(dev, &mei_wd_guid); - if (i < 0) { + id = mei_me_cl_by_uuid(dev, &mei_wd_guid); + if (id < 0) { dev_info(&dev->pdev->dev, "wd: failed to find the client\n"); - return -ENOENT; + return id; } - cl->me_client_id = dev->me_clients[i].client_id; + cl->me_client_id = dev->me_clients[id].client_id; ret = mei_cl_link(cl, MEI_WD_HOST_CLIENT_ID); if (ret < 0) { dev_info(&dev->pdev->dev, "wd: failed link client\n"); - return -ENOENT; + return ret; } cl->state = MEI_FILE_CONNECTING; diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig new file mode 100644 index 000000000000..e42b331edbc6 --- /dev/null +++ b/drivers/misc/mic/Kconfig @@ -0,0 +1,39 @@ +comment "Intel MIC Host Driver" + +config INTEL_MIC_HOST + tristate "Intel MIC Host Driver" + depends on 64BIT && PCI && X86 + select VHOST_RING + default N + help + This enables Host Driver support for the Intel Many Integrated + Core (MIC) family of PCIe form factor coprocessor devices that + run a 64 bit Linux OS. The driver manages card OS state and + enables communication between host and card. Intel MIC X100 + devices are currently supported. + + If you are building a host kernel with an Intel MIC device then + say M (recommended) or Y, else say N. If unsure say N. + + More information about the Intel MIC family as well as the Linux + OS and tools for MIC to use with this driver are available from + <http://software.intel.com/en-us/mic-developer>. + +comment "Intel MIC Card Driver" + +config INTEL_MIC_CARD + tristate "Intel MIC Card Driver" + depends on 64BIT && X86 + select VIRTIO + default N + help + This enables card driver support for the Intel Many Integrated + Core (MIC) device family. The card driver communicates shutdown/ + crash events to the host and allows registration/configuration of + virtio devices. Intel MIC X100 devices are currently supported. + + If you are building a card kernel for an Intel MIC device then + say M (recommended) or Y, else say N. If unsure say N. + + For more information see + <http://software.intel.com/en-us/mic-developer>. diff --git a/drivers/misc/mic/Makefile b/drivers/misc/mic/Makefile new file mode 100644 index 000000000000..05b34d683a58 --- /dev/null +++ b/drivers/misc/mic/Makefile @@ -0,0 +1,6 @@ +# +# Makefile - Intel MIC Linux driver. +# Copyright(c) 2013, Intel Corporation. +# +obj-$(CONFIG_INTEL_MIC_HOST) += host/ +obj-$(CONFIG_INTEL_MIC_CARD) += card/ diff --git a/drivers/misc/mic/card/Makefile b/drivers/misc/mic/card/Makefile new file mode 100644 index 000000000000..69d58bef92ce --- /dev/null +++ b/drivers/misc/mic/card/Makefile @@ -0,0 +1,11 @@ +# +# Makefile - Intel MIC Linux driver. +# Copyright(c) 2013, Intel Corporation. +# +ccflags-y += -DINTEL_MIC_CARD + +obj-$(CONFIG_INTEL_MIC_CARD) += mic_card.o +mic_card-y += mic_x100.o +mic_card-y += mic_device.o +mic_card-y += mic_debugfs.o +mic_card-y += mic_virtio.o diff --git a/drivers/misc/mic/card/mic_debugfs.c b/drivers/misc/mic/card/mic_debugfs.c new file mode 100644 index 000000000000..421b3d7911df --- /dev/null +++ b/drivers/misc/mic/card/mic_debugfs.c @@ -0,0 +1,130 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Disclaimer: The codes contained in these modules may be specific to + * the Intel Software Development Platform codenamed: Knights Ferry, and + * the Intel product codenamed: Knights Corner, and are not backward + * compatible with other Intel products. Additionally, Intel will NOT + * support the codes or instruction set in future products. + * + * Intel MIC Card driver. + * + */ +#include <linux/debugfs.h> +#include <linux/delay.h> +#include <linux/seq_file.h> +#include <linux/interrupt.h> +#include <linux/device.h> + +#include "../common/mic_dev.h" +#include "mic_device.h" + +/* Debugfs parent dir */ +static struct dentry *mic_dbg; + +/** + * mic_intr_test - Send interrupts to host. + */ +static int mic_intr_test(struct seq_file *s, void *unused) +{ + struct mic_driver *mdrv = s->private; + struct mic_device *mdev = &mdrv->mdev; + + mic_send_intr(mdev, 0); + msleep(1000); + mic_send_intr(mdev, 1); + msleep(1000); + mic_send_intr(mdev, 2); + msleep(1000); + mic_send_intr(mdev, 3); + msleep(1000); + + return 0; +} + +static int mic_intr_test_open(struct inode *inode, struct file *file) +{ + return single_open(file, mic_intr_test, inode->i_private); +} + +static int mic_intr_test_release(struct inode *inode, struct file *file) +{ + return single_release(inode, file); +} + +static const struct file_operations intr_test_ops = { + .owner = THIS_MODULE, + .open = mic_intr_test_open, + .read = seq_read, + .llseek = seq_lseek, + .release = mic_intr_test_release +}; + +/** + * mic_create_card_debug_dir - Initialize MIC debugfs entries. + */ +void __init mic_create_card_debug_dir(struct mic_driver *mdrv) +{ + struct dentry *d; + + if (!mic_dbg) + return; + + mdrv->dbg_dir = debugfs_create_dir(mdrv->name, mic_dbg); + if (!mdrv->dbg_dir) { + dev_err(mdrv->dev, "Cant create dbg_dir %s\n", mdrv->name); + return; + } + + d = debugfs_create_file("intr_test", 0444, mdrv->dbg_dir, + mdrv, &intr_test_ops); + + if (!d) { + dev_err(mdrv->dev, + "Cant create dbg intr_test %s\n", mdrv->name); + return; + } +} + +/** + * mic_delete_card_debug_dir - Uninitialize MIC debugfs entries. + */ +void mic_delete_card_debug_dir(struct mic_driver *mdrv) +{ + if (!mdrv->dbg_dir) + return; + + debugfs_remove_recursive(mdrv->dbg_dir); +} + +/** + * mic_init_card_debugfs - Initialize global debugfs entry. + */ +void __init mic_init_card_debugfs(void) +{ + mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL); + if (!mic_dbg) + pr_err("can't create debugfs dir\n"); +} + +/** + * mic_exit_card_debugfs - Uninitialize global debugfs entry + */ +void mic_exit_card_debugfs(void) +{ + debugfs_remove(mic_dbg); +} diff --git a/drivers/misc/mic/card/mic_device.c b/drivers/misc/mic/card/mic_device.c new file mode 100644 index 000000000000..d0980ff96833 --- /dev/null +++ b/drivers/misc/mic/card/mic_device.c @@ -0,0 +1,305 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Disclaimer: The codes contained in these modules may be specific to + * the Intel Software Development Platform codenamed: Knights Ferry, and + * the Intel product codenamed: Knights Corner, and are not backward + * compatible with other Intel products. Additionally, Intel will NOT + * support the codes or instruction set in future products. + * + * Intel MIC Card driver. + * + */ +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/reboot.h> + +#include <linux/mic_common.h> +#include "../common/mic_dev.h" +#include "mic_device.h" +#include "mic_virtio.h" + +static struct mic_driver *g_drv; +static struct mic_irq *shutdown_cookie; + +static void mic_notify_host(u8 state) +{ + struct mic_driver *mdrv = g_drv; + struct mic_bootparam __iomem *bootparam = mdrv->dp; + + iowrite8(state, &bootparam->shutdown_status); + dev_dbg(mdrv->dev, "%s %d system_state %d\n", + __func__, __LINE__, state); + mic_send_intr(&mdrv->mdev, ioread8(&bootparam->c2h_shutdown_db)); +} + +static int mic_panic_event(struct notifier_block *this, unsigned long event, + void *ptr) +{ + struct mic_driver *mdrv = g_drv; + struct mic_bootparam __iomem *bootparam = mdrv->dp; + + iowrite8(-1, &bootparam->h2c_config_db); + iowrite8(-1, &bootparam->h2c_shutdown_db); + mic_notify_host(MIC_CRASHED); + return NOTIFY_DONE; +} + +static struct notifier_block mic_panic = { + .notifier_call = mic_panic_event, +}; + +static irqreturn_t mic_shutdown_isr(int irq, void *data) +{ + struct mic_driver *mdrv = g_drv; + struct mic_bootparam __iomem *bootparam = mdrv->dp; + + mic_ack_interrupt(&g_drv->mdev); + if (ioread8(&bootparam->shutdown_card)) + orderly_poweroff(true); + return IRQ_HANDLED; +} + +static int mic_shutdown_init(void) +{ + int rc = 0; + struct mic_driver *mdrv = g_drv; + struct mic_bootparam __iomem *bootparam = mdrv->dp; + int shutdown_db; + + shutdown_db = mic_next_card_db(); + shutdown_cookie = mic_request_card_irq(mic_shutdown_isr, + "Shutdown", mdrv, shutdown_db); + if (IS_ERR(shutdown_cookie)) + rc = PTR_ERR(shutdown_cookie); + else + iowrite8(shutdown_db, &bootparam->h2c_shutdown_db); + return rc; +} + +static void mic_shutdown_uninit(void) +{ + struct mic_driver *mdrv = g_drv; + struct mic_bootparam __iomem *bootparam = mdrv->dp; + + iowrite8(-1, &bootparam->h2c_shutdown_db); + mic_free_card_irq(shutdown_cookie, mdrv); +} + +static int __init mic_dp_init(void) +{ + struct mic_driver *mdrv = g_drv; + struct mic_device *mdev = &mdrv->mdev; + struct mic_bootparam __iomem *bootparam; + u64 lo, hi, dp_dma_addr; + u32 magic; + + lo = mic_read_spad(&mdrv->mdev, MIC_DPLO_SPAD); + hi = mic_read_spad(&mdrv->mdev, MIC_DPHI_SPAD); + + dp_dma_addr = lo | (hi << 32); + mdrv->dp = mic_card_map(mdev, dp_dma_addr, MIC_DP_SIZE); + if (!mdrv->dp) { + dev_err(mdrv->dev, "Cannot remap Aperture BAR\n"); + return -ENOMEM; + } + bootparam = mdrv->dp; + magic = ioread32(&bootparam->magic); + if (MIC_MAGIC != magic) { + dev_err(mdrv->dev, "bootparam magic mismatch 0x%x\n", magic); + return -EIO; + } + return 0; +} + +/* Uninitialize the device page */ +static void mic_dp_uninit(void) +{ + mic_card_unmap(&g_drv->mdev, g_drv->dp); +} + +/** + * mic_request_card_irq - request an irq. + * + * @func: The callback function that handles the interrupt. + * @name: The ASCII name of the callee requesting the irq. + * @data: private data that is returned back when calling the + * function handler. + * @index: The doorbell index of the requester. + * + * returns: The cookie that is transparent to the caller. Passed + * back when calling mic_free_irq. An appropriate error code + * is returned on failure. Caller needs to use IS_ERR(return_val) + * to check for failure and PTR_ERR(return_val) to obtained the + * error code. + * + */ +struct mic_irq *mic_request_card_irq(irqreturn_t (*func)(int irq, void *data), + const char *name, void *data, int index) +{ + int rc = 0; + unsigned long cookie; + struct mic_driver *mdrv = g_drv; + + rc = request_irq(mic_db_to_irq(mdrv, index), func, + 0, name, data); + if (rc) { + dev_err(mdrv->dev, "request_irq failed rc = %d\n", rc); + goto err; + } + mdrv->irq_info.irq_usage_count[index]++; + cookie = index; + return (struct mic_irq *)cookie; +err: + return ERR_PTR(rc); +} + +/** + * mic_free_card_irq - free irq. + * + * @cookie: cookie obtained during a successful call to mic_request_irq + * @data: private data specified by the calling function during the + * mic_request_irq + * + * returns: none. + */ +void mic_free_card_irq(struct mic_irq *cookie, void *data) +{ + int index; + struct mic_driver *mdrv = g_drv; + + index = (unsigned long)cookie & 0xFFFFU; + free_irq(mic_db_to_irq(mdrv, index), data); + mdrv->irq_info.irq_usage_count[index]--; +} + +/** + * mic_next_card_db - Get the doorbell with minimum usage count. + * + * Returns the irq index. + */ +int mic_next_card_db(void) +{ + int i; + int index = 0; + struct mic_driver *mdrv = g_drv; + + for (i = 0; i < mdrv->intr_info.num_intr; i++) { + if (mdrv->irq_info.irq_usage_count[i] < + mdrv->irq_info.irq_usage_count[index]) + index = i; + } + + return index; +} + +/** + * mic_init_irq - Initialize irq information. + * + * Returns 0 in success. Appropriate error code on failure. + */ +static int mic_init_irq(void) +{ + struct mic_driver *mdrv = g_drv; + + mdrv->irq_info.irq_usage_count = kzalloc((sizeof(u32) * + mdrv->intr_info.num_intr), + GFP_KERNEL); + if (!mdrv->irq_info.irq_usage_count) + return -ENOMEM; + return 0; +} + +/** + * mic_uninit_irq - Uninitialize irq information. + * + * None. + */ +static void mic_uninit_irq(void) +{ + struct mic_driver *mdrv = g_drv; + + kfree(mdrv->irq_info.irq_usage_count); +} + +/* + * mic_driver_init - MIC driver initialization tasks. + * + * Returns 0 in success. Appropriate error code on failure. + */ +int __init mic_driver_init(struct mic_driver *mdrv) +{ + int rc; + + g_drv = mdrv; + /* + * Unloading the card module is not supported. The MIC card module + * handles fundamental operations like host/card initiated shutdowns + * and informing the host about card crashes and cannot be unloaded. + */ + if (!try_module_get(mdrv->dev->driver->owner)) { + rc = -ENODEV; + goto done; + } + rc = mic_dp_init(); + if (rc) + goto put; + rc = mic_init_irq(); + if (rc) + goto dp_uninit; + rc = mic_shutdown_init(); + if (rc) + goto irq_uninit; + rc = mic_devices_init(mdrv); + if (rc) + goto shutdown_uninit; + mic_create_card_debug_dir(mdrv); + atomic_notifier_chain_register(&panic_notifier_list, &mic_panic); +done: + return rc; +shutdown_uninit: + mic_shutdown_uninit(); +irq_uninit: + mic_uninit_irq(); +dp_uninit: + mic_dp_uninit(); +put: + module_put(mdrv->dev->driver->owner); + return rc; +} + +/* + * mic_driver_uninit - MIC driver uninitialization tasks. + * + * Returns None + */ +void mic_driver_uninit(struct mic_driver *mdrv) +{ + mic_delete_card_debug_dir(mdrv); + mic_devices_uninit(mdrv); + /* + * Inform the host about the shutdown status i.e. poweroff/restart etc. + * The module cannot be unloaded so the only code path to call + * mic_devices_uninit(..) is the shutdown callback. + */ + mic_notify_host(system_state); + mic_shutdown_uninit(); + mic_uninit_irq(); + mic_dp_uninit(); + module_put(mdrv->dev->driver->owner); +} diff --git a/drivers/misc/mic/card/mic_device.h b/drivers/misc/mic/card/mic_device.h new file mode 100644 index 000000000000..347b9b3b7916 --- /dev/null +++ b/drivers/misc/mic/card/mic_device.h @@ -0,0 +1,133 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Disclaimer: The codes contained in these modules may be specific to + * the Intel Software Development Platform codenamed: Knights Ferry, and + * the Intel product codenamed: Knights Corner, and are not backward + * compatible with other Intel products. Additionally, Intel will NOT + * support the codes or instruction set in future products. + * + * Intel MIC Card driver. + * + */ +#ifndef _MIC_CARD_DEVICE_H_ +#define _MIC_CARD_DEVICE_H_ + +#include <linux/workqueue.h> +#include <linux/io.h> + +/** + * struct mic_intr_info - Contains h/w specific interrupt sources info + * + * @num_intr: The number of irqs available + */ +struct mic_intr_info { + u32 num_intr; +}; + +/** + * struct mic_irq_info - OS specific irq information + * + * @irq_usage_count: usage count array tracking the number of sources + * assigned for each irq. + */ +struct mic_irq_info { + int *irq_usage_count; +}; + +/** + * struct mic_device - MIC device information. + * + * @mmio: MMIO bar information. + */ +struct mic_device { + struct mic_mw mmio; +}; + +/** + * struct mic_driver - MIC card driver information. + * + * @name: Name for MIC driver. + * @dbg_dir: debugfs directory of this MIC device. + * @dev: The device backing this MIC. + * @dp: The pointer to the virtio device page. + * @mdev: MIC device information for the host. + * @hotplug_work: Hot plug work for adding/removing virtio devices. + * @irq_info: The OS specific irq information + * @intr_info: H/W specific interrupt information. + */ +struct mic_driver { + char name[20]; + struct dentry *dbg_dir; + struct device *dev; + void __iomem *dp; + struct mic_device mdev; + struct work_struct hotplug_work; + struct mic_irq_info irq_info; + struct mic_intr_info intr_info; +}; + +/** + * struct mic_irq - opaque pointer used as cookie + */ +struct mic_irq; + +/** + * mic_mmio_read - read from an MMIO register. + * @mw: MMIO register base virtual address. + * @offset: register offset. + * + * RETURNS: register value. + */ +static inline u32 mic_mmio_read(struct mic_mw *mw, u32 offset) +{ + return ioread32(mw->va + offset); +} + +/** + * mic_mmio_write - write to an MMIO register. + * @mw: MMIO register base virtual address. + * @val: the data value to put into the register + * @offset: register offset. + * + * RETURNS: none. + */ +static inline void +mic_mmio_write(struct mic_mw *mw, u32 val, u32 offset) +{ + iowrite32(val, mw->va + offset); +} + +int mic_driver_init(struct mic_driver *mdrv); +void mic_driver_uninit(struct mic_driver *mdrv); +int mic_next_card_db(void); +struct mic_irq *mic_request_card_irq(irqreturn_t (*func)(int irq, void *data), + const char *name, void *data, int intr_src); +void mic_free_card_irq(struct mic_irq *cookie, void *data); +u32 mic_read_spad(struct mic_device *mdev, unsigned int idx); +void mic_send_intr(struct mic_device *mdev, int doorbell); +int mic_db_to_irq(struct mic_driver *mdrv, int db); +u32 mic_ack_interrupt(struct mic_device *mdev); +void mic_hw_intr_init(struct mic_driver *mdrv); +void __iomem * +mic_card_map(struct mic_device *mdev, dma_addr_t addr, size_t size); +void mic_card_unmap(struct mic_device *mdev, void __iomem *addr); +void __init mic_create_card_debug_dir(struct mic_driver *mdrv); +void mic_delete_card_debug_dir(struct mic_driver *mdrv); +void __init mic_init_card_debugfs(void); +void mic_exit_card_debugfs(void); +#endif diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c new file mode 100644 index 000000000000..914cc9b2caad --- /dev/null +++ b/drivers/misc/mic/card/mic_virtio.c @@ -0,0 +1,630 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Disclaimer: The codes contained in these modules may be specific to + * the Intel Software Development Platform codenamed: Knights Ferry, and + * the Intel product codenamed: Knights Corner, and are not backward + * compatible with other Intel products. Additionally, Intel will NOT + * support the codes or instruction set in future products. + * + * Adapted from: + * + * virtio for kvm on s390 + * + * Copyright IBM Corp. 2008 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License (version 2 only) + * as published by the Free Software Foundation. + * + * Author(s): Christian Borntraeger <borntraeger@de.ibm.com> + * + * Intel MIC Card driver. + * + */ +#include <linux/delay.h> +#include <linux/slab.h> +#include <linux/virtio_config.h> + +#include "../common/mic_dev.h" +#include "mic_virtio.h" + +#define VIRTIO_SUBCODE_64 0x0D00 + +#define MIC_MAX_VRINGS 4 +struct mic_vdev { + struct virtio_device vdev; + struct mic_device_desc __iomem *desc; + struct mic_device_ctrl __iomem *dc; + struct mic_device *mdev; + void __iomem *vr[MIC_MAX_VRINGS]; + int used_size[MIC_MAX_VRINGS]; + struct completion reset_done; + struct mic_irq *virtio_cookie; + int c2h_vdev_db; +}; + +static struct mic_irq *virtio_config_cookie; +#define to_micvdev(vd) container_of(vd, struct mic_vdev, vdev) + +/* Helper API to obtain the parent of the virtio device */ +static inline struct device *mic_dev(struct mic_vdev *mvdev) +{ + return mvdev->vdev.dev.parent; +} + +/* This gets the device's feature bits. */ +static u32 mic_get_features(struct virtio_device *vdev) +{ + unsigned int i, bits; + u32 features = 0; + struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc; + u8 __iomem *in_features = mic_vq_features(desc); + int feature_len = ioread8(&desc->feature_len); + + bits = min_t(unsigned, feature_len, + sizeof(vdev->features)) * 8; + for (i = 0; i < bits; i++) + if (ioread8(&in_features[i / 8]) & (BIT(i % 8))) + features |= BIT(i); + + return features; +} + +static void mic_finalize_features(struct virtio_device *vdev) +{ + unsigned int i, bits; + struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc; + u8 feature_len = ioread8(&desc->feature_len); + /* Second half of bitmap is features we accept. */ + u8 __iomem *out_features = + mic_vq_features(desc) + feature_len; + + /* Give virtio_ring a chance to accept features. */ + vring_transport_features(vdev); + + memset_io(out_features, 0, feature_len); + bits = min_t(unsigned, feature_len, + sizeof(vdev->features)) * 8; + for (i = 0; i < bits; i++) { + if (test_bit(i, vdev->features)) + iowrite8(ioread8(&out_features[i / 8]) | (1 << (i % 8)), + &out_features[i / 8]); + } +} + +/* + * Reading and writing elements in config space + */ +static void mic_get(struct virtio_device *vdev, unsigned int offset, + void *buf, unsigned len) +{ + struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc; + + if (offset + len > ioread8(&desc->config_len)) + return; + memcpy_fromio(buf, mic_vq_configspace(desc) + offset, len); +} + +static void mic_set(struct virtio_device *vdev, unsigned int offset, + const void *buf, unsigned len) +{ + struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc; + + if (offset + len > ioread8(&desc->config_len)) + return; + memcpy_toio(mic_vq_configspace(desc) + offset, buf, len); +} + +/* + * The operations to get and set the status word just access the status + * field of the device descriptor. set_status also interrupts the host + * to tell about status changes. + */ +static u8 mic_get_status(struct virtio_device *vdev) +{ + return ioread8(&to_micvdev(vdev)->desc->status); +} + +static void mic_set_status(struct virtio_device *vdev, u8 status) +{ + struct mic_vdev *mvdev = to_micvdev(vdev); + if (!status) + return; + iowrite8(status, &mvdev->desc->status); + mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db); +} + +/* Inform host on a virtio device reset and wait for ack from host */ +static void mic_reset_inform_host(struct virtio_device *vdev) +{ + struct mic_vdev *mvdev = to_micvdev(vdev); + struct mic_device_ctrl __iomem *dc = mvdev->dc; + int retry = 100, i; + + iowrite8(0, &dc->host_ack); + iowrite8(1, &dc->vdev_reset); + mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db); + + /* Wait till host completes all card accesses and acks the reset */ + for (i = retry; i--;) { + if (ioread8(&dc->host_ack)) + break; + msleep(100); + }; + + dev_dbg(mic_dev(mvdev), "%s: retry: %d\n", __func__, retry); + + /* Reset status to 0 in case we timed out */ + iowrite8(0, &mvdev->desc->status); +} + +static void mic_reset(struct virtio_device *vdev) +{ + struct mic_vdev *mvdev = to_micvdev(vdev); + + dev_dbg(mic_dev(mvdev), "%s: virtio id %d\n", + __func__, vdev->id.device); + + mic_reset_inform_host(vdev); + complete_all(&mvdev->reset_done); +} + +/* + * The virtio_ring code calls this API when it wants to notify the Host. + */ +static void mic_notify(struct virtqueue *vq) +{ + struct mic_vdev *mvdev = vq->priv; + + mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db); +} + +static void mic_del_vq(struct virtqueue *vq, int n) +{ + struct mic_vdev *mvdev = to_micvdev(vq->vdev); + struct vring *vr = (struct vring *)(vq + 1); + + free_pages((unsigned long) vr->used, get_order(mvdev->used_size[n])); + vring_del_virtqueue(vq); + mic_card_unmap(mvdev->mdev, mvdev->vr[n]); + mvdev->vr[n] = NULL; +} + +static void mic_del_vqs(struct virtio_device *vdev) +{ + struct mic_vdev *mvdev = to_micvdev(vdev); + struct virtqueue *vq, *n; + int idx = 0; + + dev_dbg(mic_dev(mvdev), "%s\n", __func__); + + list_for_each_entry_safe(vq, n, &vdev->vqs, list) + mic_del_vq(vq, idx++); +} + +/* + * This routine will assign vring's allocated in host/io memory. Code in + * virtio_ring.c however continues to access this io memory as if it were local + * memory without io accessors. + */ +static struct virtqueue *mic_find_vq(struct virtio_device *vdev, + unsigned index, + void (*callback)(struct virtqueue *vq), + const char *name) +{ + struct mic_vdev *mvdev = to_micvdev(vdev); + struct mic_vqconfig __iomem *vqconfig; + struct mic_vqconfig config; + struct virtqueue *vq; + void __iomem *va; + struct _mic_vring_info __iomem *info; + void *used; + int vr_size, _vr_size, err, magic; + struct vring *vr; + u8 type = ioread8(&mvdev->desc->type); + + if (index >= ioread8(&mvdev->desc->num_vq)) + return ERR_PTR(-ENOENT); + + if (!name) + return ERR_PTR(-ENOENT); + + /* First assign the vring's allocated in host memory */ + vqconfig = mic_vq_config(mvdev->desc) + index; + memcpy_fromio(&config, vqconfig, sizeof(config)); + _vr_size = vring_size(config.num, MIC_VIRTIO_RING_ALIGN); + vr_size = PAGE_ALIGN(_vr_size + sizeof(struct _mic_vring_info)); + va = mic_card_map(mvdev->mdev, config.address, vr_size); + if (!va) + return ERR_PTR(-ENOMEM); + mvdev->vr[index] = va; + memset_io(va, 0x0, _vr_size); + vq = vring_new_virtqueue(index, + config.num, MIC_VIRTIO_RING_ALIGN, vdev, + false, + va, mic_notify, callback, name); + if (!vq) { + err = -ENOMEM; + goto unmap; + } + info = va + _vr_size; + magic = ioread32(&info->magic); + + if (WARN(magic != MIC_MAGIC + type + index, "magic mismatch")) { + err = -EIO; + goto unmap; + } + + /* Allocate and reassign used ring now */ + mvdev->used_size[index] = PAGE_ALIGN(sizeof(__u16) * 3 + + sizeof(struct vring_used_elem) * config.num); + used = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, + get_order(mvdev->used_size[index])); + if (!used) { + err = -ENOMEM; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, err); + goto del_vq; + } + iowrite64(virt_to_phys(used), &vqconfig->used_address); + + /* + * To reassign the used ring here we are directly accessing + * struct vring_virtqueue which is a private data structure + * in virtio_ring.c. At the minimum, a BUILD_BUG_ON() in + * vring_new_virtqueue() would ensure that + * (&vq->vring == (struct vring *) (&vq->vq + 1)); + */ + vr = (struct vring *)(vq + 1); + vr->used = used; + + vq->priv = mvdev; + return vq; +del_vq: + vring_del_virtqueue(vq); +unmap: + mic_card_unmap(mvdev->mdev, mvdev->vr[index]); + return ERR_PTR(err); +} + +static int mic_find_vqs(struct virtio_device *vdev, unsigned nvqs, + struct virtqueue *vqs[], + vq_callback_t *callbacks[], + const char *names[]) +{ + struct mic_vdev *mvdev = to_micvdev(vdev); + struct mic_device_ctrl __iomem *dc = mvdev->dc; + int i, err, retry = 100; + + /* We must have this many virtqueues. */ + if (nvqs > ioread8(&mvdev->desc->num_vq)) + return -ENOENT; + + for (i = 0; i < nvqs; ++i) { + dev_dbg(mic_dev(mvdev), "%s: %d: %s\n", + __func__, i, names[i]); + vqs[i] = mic_find_vq(vdev, i, callbacks[i], names[i]); + if (IS_ERR(vqs[i])) { + err = PTR_ERR(vqs[i]); + goto error; + } + } + + iowrite8(1, &dc->used_address_updated); + /* + * Send an interrupt to the host to inform it that used + * rings have been re-assigned. + */ + mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db); + for (i = retry; i--;) { + if (!ioread8(&dc->used_address_updated)) + break; + msleep(100); + }; + + dev_dbg(mic_dev(mvdev), "%s: retry: %d\n", __func__, retry); + if (!retry) { + err = -ENODEV; + goto error; + } + + return 0; +error: + mic_del_vqs(vdev); + return err; +} + +/* + * The config ops structure as defined by virtio config + */ +static struct virtio_config_ops mic_vq_config_ops = { + .get_features = mic_get_features, + .finalize_features = mic_finalize_features, + .get = mic_get, + .set = mic_set, + .get_status = mic_get_status, + .set_status = mic_set_status, + .reset = mic_reset, + .find_vqs = mic_find_vqs, + .del_vqs = mic_del_vqs, +}; + +static irqreturn_t +mic_virtio_intr_handler(int irq, void *data) +{ + struct mic_vdev *mvdev = data; + struct virtqueue *vq; + + mic_ack_interrupt(mvdev->mdev); + list_for_each_entry(vq, &mvdev->vdev.vqs, list) + vring_interrupt(0, vq); + + return IRQ_HANDLED; +} + +static void mic_virtio_release_dev(struct device *_d) +{ + /* + * No need for a release method similar to virtio PCI. + * Provide an empty one to avoid getting a warning from core. + */ +} + +/* + * adds a new device and register it with virtio + * appropriate drivers are loaded by the device model + */ +static int mic_add_device(struct mic_device_desc __iomem *d, + unsigned int offset, struct mic_driver *mdrv) +{ + struct mic_vdev *mvdev; + int ret; + int virtio_db; + u8 type = ioread8(&d->type); + + mvdev = kzalloc(sizeof(*mvdev), GFP_KERNEL); + if (!mvdev) { + dev_err(mdrv->dev, "Cannot allocate mic dev %u type %u\n", + offset, type); + return -ENOMEM; + } + + mvdev->mdev = &mdrv->mdev; + mvdev->vdev.dev.parent = mdrv->dev; + mvdev->vdev.dev.release = mic_virtio_release_dev; + mvdev->vdev.id.device = type; + mvdev->vdev.config = &mic_vq_config_ops; + mvdev->desc = d; + mvdev->dc = (void __iomem *)d + mic_aligned_desc_size(d); + init_completion(&mvdev->reset_done); + + virtio_db = mic_next_card_db(); + mvdev->virtio_cookie = mic_request_card_irq(mic_virtio_intr_handler, + "virtio intr", mvdev, virtio_db); + if (IS_ERR(mvdev->virtio_cookie)) { + ret = PTR_ERR(mvdev->virtio_cookie); + goto kfree; + } + iowrite8((u8)virtio_db, &mvdev->dc->h2c_vdev_db); + mvdev->c2h_vdev_db = ioread8(&mvdev->dc->c2h_vdev_db); + + ret = register_virtio_device(&mvdev->vdev); + if (ret) { + dev_err(mic_dev(mvdev), + "Failed to register mic device %u type %u\n", + offset, type); + goto free_irq; + } + iowrite64((u64)mvdev, &mvdev->dc->vdev); + dev_dbg(mic_dev(mvdev), "%s: registered mic device %u type %u mvdev %p\n", + __func__, offset, type, mvdev); + + return 0; + +free_irq: + mic_free_card_irq(mvdev->virtio_cookie, mvdev); +kfree: + kfree(mvdev); + return ret; +} + +/* + * match for a mic device with a specific desc pointer + */ +static int mic_match_desc(struct device *dev, void *data) +{ + struct virtio_device *vdev = dev_to_virtio(dev); + struct mic_vdev *mvdev = to_micvdev(vdev); + + return mvdev->desc == (void __iomem *)data; +} + +static void mic_handle_config_change(struct mic_device_desc __iomem *d, + unsigned int offset, struct mic_driver *mdrv) +{ + struct mic_device_ctrl __iomem *dc + = (void __iomem *)d + mic_aligned_desc_size(d); + struct mic_vdev *mvdev = (struct mic_vdev *)ioread64(&dc->vdev); + struct virtio_driver *drv; + + if (ioread8(&dc->config_change) != MIC_VIRTIO_PARAM_CONFIG_CHANGED) + return; + + dev_dbg(mdrv->dev, "%s %d\n", __func__, __LINE__); + drv = container_of(mvdev->vdev.dev.driver, + struct virtio_driver, driver); + if (drv->config_changed) + drv->config_changed(&mvdev->vdev); + iowrite8(1, &dc->guest_ack); +} + +/* + * removes a virtio device if a hot remove event has been + * requested by the host. + */ +static int mic_remove_device(struct mic_device_desc __iomem *d, + unsigned int offset, struct mic_driver *mdrv) +{ + struct mic_device_ctrl __iomem *dc + = (void __iomem *)d + mic_aligned_desc_size(d); + struct mic_vdev *mvdev = (struct mic_vdev *)ioread64(&dc->vdev); + u8 status; + int ret = -1; + + if (ioread8(&dc->config_change) == MIC_VIRTIO_PARAM_DEV_REMOVE) { + dev_dbg(mdrv->dev, + "%s %d config_change %d type %d mvdev %p\n", + __func__, __LINE__, + ioread8(&dc->config_change), ioread8(&d->type), mvdev); + + status = ioread8(&d->status); + INIT_COMPLETION(mvdev->reset_done); + unregister_virtio_device(&mvdev->vdev); + mic_free_card_irq(mvdev->virtio_cookie, mvdev); + if (status & VIRTIO_CONFIG_S_DRIVER_OK) + wait_for_completion(&mvdev->reset_done); + kfree(mvdev); + iowrite8(1, &dc->guest_ack); + dev_dbg(mdrv->dev, "%s %d guest_ack %d\n", + __func__, __LINE__, ioread8(&dc->guest_ack)); + ret = 0; + } + + return ret; +} + +#define REMOVE_DEVICES true + +static void mic_scan_devices(struct mic_driver *mdrv, bool remove) +{ + s8 type; + unsigned int i; + struct mic_device_desc __iomem *d; + struct mic_device_ctrl __iomem *dc; + struct device *dev; + int ret; + + for (i = mic_aligned_size(struct mic_bootparam); + i < MIC_DP_SIZE; i += mic_total_desc_size(d)) { + d = mdrv->dp + i; + dc = (void __iomem *)d + mic_aligned_desc_size(d); + /* + * This read barrier is paired with the corresponding write + * barrier on the host which is inserted before adding or + * removing a virtio device descriptor, by updating the type. + */ + rmb(); + type = ioread8(&d->type); + + /* end of list */ + if (type == 0) + break; + + if (type == -1) + continue; + + /* device already exists */ + dev = device_find_child(mdrv->dev, d, mic_match_desc); + if (dev) { + if (remove) + iowrite8(MIC_VIRTIO_PARAM_DEV_REMOVE, + &dc->config_change); + put_device(dev); + mic_handle_config_change(d, i, mdrv); + ret = mic_remove_device(d, i, mdrv); + if (!ret && !remove) + iowrite8(-1, &d->type); + if (remove) { + iowrite8(0, &dc->config_change); + iowrite8(0, &dc->guest_ack); + } + continue; + } + + /* new device */ + dev_dbg(mdrv->dev, "%s %d Adding new virtio device %p\n", + __func__, __LINE__, d); + if (!remove) + mic_add_device(d, i, mdrv); + } +} + +/* + * mic_hotplug_device tries to find changes in the device page. + */ +static void mic_hotplug_devices(struct work_struct *work) +{ + struct mic_driver *mdrv = container_of(work, + struct mic_driver, hotplug_work); + + mic_scan_devices(mdrv, !REMOVE_DEVICES); +} + +/* + * Interrupt handler for hot plug/config changes etc. + */ +static irqreturn_t +mic_extint_handler(int irq, void *data) +{ + struct mic_driver *mdrv = (struct mic_driver *)data; + + dev_dbg(mdrv->dev, "%s %d hotplug work\n", + __func__, __LINE__); + mic_ack_interrupt(&mdrv->mdev); + schedule_work(&mdrv->hotplug_work); + return IRQ_HANDLED; +} + +/* + * Init function for virtio + */ +int mic_devices_init(struct mic_driver *mdrv) +{ + int rc; + struct mic_bootparam __iomem *bootparam; + int config_db; + + INIT_WORK(&mdrv->hotplug_work, mic_hotplug_devices); + mic_scan_devices(mdrv, !REMOVE_DEVICES); + + config_db = mic_next_card_db(); + virtio_config_cookie = mic_request_card_irq(mic_extint_handler, + "virtio_config_intr", mdrv, config_db); + if (IS_ERR(virtio_config_cookie)) { + rc = PTR_ERR(virtio_config_cookie); + goto exit; + } + + bootparam = mdrv->dp; + iowrite8(config_db, &bootparam->h2c_config_db); + return 0; +exit: + return rc; +} + +/* + * Uninit function for virtio + */ +void mic_devices_uninit(struct mic_driver *mdrv) +{ + struct mic_bootparam __iomem *bootparam = mdrv->dp; + iowrite8(-1, &bootparam->h2c_config_db); + mic_free_card_irq(virtio_config_cookie, mdrv); + flush_work(&mdrv->hotplug_work); + mic_scan_devices(mdrv, REMOVE_DEVICES); +} diff --git a/drivers/misc/mic/card/mic_virtio.h b/drivers/misc/mic/card/mic_virtio.h new file mode 100644 index 000000000000..2c5c22c93ba8 --- /dev/null +++ b/drivers/misc/mic/card/mic_virtio.h @@ -0,0 +1,77 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Disclaimer: The codes contained in these modules may be specific to + * the Intel Software Development Platform codenamed: Knights Ferry, and + * the Intel product codenamed: Knights Corner, and are not backward + * compatible with other Intel products. Additionally, Intel will NOT + * support the codes or instruction set in future products. + * + * Intel MIC Card driver. + * + */ +#ifndef __MIC_CARD_VIRTIO_H +#define __MIC_CARD_VIRTIO_H + +#include <linux/mic_common.h> +#include "mic_device.h" + +/* + * 64 bit I/O access + */ +#ifndef ioread64 +#define ioread64 readq +#endif +#ifndef iowrite64 +#define iowrite64 writeq +#endif + +static inline unsigned mic_desc_size(struct mic_device_desc __iomem *desc) +{ + return mic_aligned_size(*desc) + + ioread8(&desc->num_vq) * mic_aligned_size(struct mic_vqconfig) + + ioread8(&desc->feature_len) * 2 + + ioread8(&desc->config_len); +} + +static inline struct mic_vqconfig __iomem * +mic_vq_config(struct mic_device_desc __iomem *desc) +{ + return (struct mic_vqconfig __iomem *)(desc + 1); +} + +static inline __u8 __iomem * +mic_vq_features(struct mic_device_desc __iomem *desc) +{ + return (__u8 __iomem *)(mic_vq_config(desc) + ioread8(&desc->num_vq)); +} + +static inline __u8 __iomem * +mic_vq_configspace(struct mic_device_desc __iomem *desc) +{ + return mic_vq_features(desc) + ioread8(&desc->feature_len) * 2; +} +static inline unsigned mic_total_desc_size(struct mic_device_desc __iomem *desc) +{ + return mic_aligned_desc_size(desc) + + mic_aligned_size(struct mic_device_ctrl); +} + +int mic_devices_init(struct mic_driver *mdrv); +void mic_devices_uninit(struct mic_driver *mdrv); + +#endif diff --git a/drivers/misc/mic/card/mic_x100.c b/drivers/misc/mic/card/mic_x100.c new file mode 100644 index 000000000000..2868945c9a4d --- /dev/null +++ b/drivers/misc/mic/card/mic_x100.c @@ -0,0 +1,256 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Disclaimer: The codes contained in these modules may be specific to + * the Intel Software Development Platform codenamed: Knights Ferry, and + * the Intel product codenamed: Knights Corner, and are not backward + * compatible with other Intel products. Additionally, Intel will NOT + * support the codes or instruction set in future products. + * + * Intel MIC Card driver. + * + */ +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/platform_device.h> + +#include "../common/mic_dev.h" +#include "mic_device.h" +#include "mic_x100.h" + +static const char mic_driver_name[] = "mic"; + +static struct mic_driver g_drv; + +/** + * mic_read_spad - read from the scratchpad register + * @mdev: pointer to mic_device instance + * @idx: index to scratchpad register, 0 based + * + * This function allows reading of the 32bit scratchpad register. + * + * RETURNS: An appropriate -ERRNO error value on error, or zero for success. + */ +u32 mic_read_spad(struct mic_device *mdev, unsigned int idx) +{ + return mic_mmio_read(&mdev->mmio, + MIC_X100_SBOX_BASE_ADDRESS + + MIC_X100_SBOX_SPAD0 + idx * 4); +} + +/** + * __mic_send_intr - Send interrupt to Host. + * @mdev: pointer to mic_device instance + * @doorbell: Doorbell number. + */ +void mic_send_intr(struct mic_device *mdev, int doorbell) +{ + struct mic_mw *mw = &mdev->mmio; + + if (doorbell > MIC_X100_MAX_DOORBELL_IDX) + return; + /* Ensure that the interrupt is ordered w.r.t previous stores. */ + wmb(); + mic_mmio_write(mw, MIC_X100_SBOX_SDBIC0_DBREQ_BIT, + MIC_X100_SBOX_BASE_ADDRESS + + (MIC_X100_SBOX_SDBIC0 + (4 * doorbell))); +} + +/** + * mic_ack_interrupt - Device specific interrupt handling. + * @mdev: pointer to mic_device instance + * + * Returns: bitmask of doorbell events triggered. + */ +u32 mic_ack_interrupt(struct mic_device *mdev) +{ + return 0; +} + +static inline int mic_get_sbox_irq(int db) +{ + return MIC_X100_IRQ_BASE + db; +} + +static inline int mic_get_rdmasr_irq(int index) +{ + return MIC_X100_RDMASR_IRQ_BASE + index; +} + +/** + * mic_hw_intr_init - Initialize h/w specific interrupt + * information. + * @mdrv: pointer to mic_driver + */ +void mic_hw_intr_init(struct mic_driver *mdrv) +{ + mdrv->intr_info.num_intr = MIC_X100_NUM_SBOX_IRQ + + MIC_X100_NUM_RDMASR_IRQ; +} + +/** + * mic_db_to_irq - Retrieve irq number corresponding to a doorbell. + * @mdrv: pointer to mic_driver + * @db: The doorbell obtained for which the irq is needed. Doorbell + * may correspond to an sbox doorbell or an rdmasr index. + * + * Returns the irq corresponding to the doorbell. + */ +int mic_db_to_irq(struct mic_driver *mdrv, int db) +{ + int rdmasr_index; + if (db < MIC_X100_NUM_SBOX_IRQ) { + return mic_get_sbox_irq(db); + } else { + rdmasr_index = db - MIC_X100_NUM_SBOX_IRQ + + MIC_X100_RDMASR_IRQ_BASE; + return mic_get_rdmasr_irq(rdmasr_index); + } +} + +/* + * mic_card_map - Allocate virtual address for a remote memory region. + * @mdev: pointer to mic_device instance. + * @addr: Remote DMA address. + * @size: Size of the region. + * + * Returns: Virtual address backing the remote memory region. + */ +void __iomem * +mic_card_map(struct mic_device *mdev, dma_addr_t addr, size_t size) +{ + return ioremap(addr, size); +} + +/* + * mic_card_unmap - Unmap the virtual address for a remote memory region. + * @mdev: pointer to mic_device instance. + * @addr: Virtual address for remote memory region. + * + * Returns: None. + */ +void mic_card_unmap(struct mic_device *mdev, void __iomem *addr) +{ + iounmap(addr); +} + +static int __init mic_probe(struct platform_device *pdev) +{ + struct mic_driver *mdrv = &g_drv; + struct mic_device *mdev = &mdrv->mdev; + int rc = 0; + + mdrv->dev = &pdev->dev; + snprintf(mdrv->name, sizeof(mic_driver_name), mic_driver_name); + + mdev->mmio.pa = MIC_X100_MMIO_BASE; + mdev->mmio.len = MIC_X100_MMIO_LEN; + mdev->mmio.va = ioremap(MIC_X100_MMIO_BASE, MIC_X100_MMIO_LEN); + if (!mdev->mmio.va) { + dev_err(&pdev->dev, "Cannot remap MMIO BAR\n"); + rc = -EIO; + goto done; + } + mic_hw_intr_init(mdrv); + rc = mic_driver_init(mdrv); + if (rc) { + dev_err(&pdev->dev, "mic_driver_init failed rc %d\n", rc); + goto iounmap; + } +done: + return rc; +iounmap: + iounmap(mdev->mmio.va); + return rc; +} + +static int mic_remove(struct platform_device *pdev) +{ + struct mic_driver *mdrv = &g_drv; + struct mic_device *mdev = &mdrv->mdev; + + mic_driver_uninit(mdrv); + iounmap(mdev->mmio.va); + return 0; +} + +static void mic_platform_shutdown(struct platform_device *pdev) +{ + mic_remove(pdev); +} + +static struct platform_device mic_platform_dev = { + .name = mic_driver_name, + .id = 0, + .num_resources = 0, +}; + +static struct platform_driver __refdata mic_platform_driver = { + .probe = mic_probe, + .remove = mic_remove, + .shutdown = mic_platform_shutdown, + .driver = { + .name = mic_driver_name, + .owner = THIS_MODULE, + }, +}; + +static int __init mic_init(void) +{ + int ret; + struct cpuinfo_x86 *c = &cpu_data(0); + + if (!(c->x86 == 11 && c->x86_model == 1)) { + ret = -ENODEV; + pr_err("%s not running on X100 ret %d\n", __func__, ret); + goto done; + } + + mic_init_card_debugfs(); + ret = platform_device_register(&mic_platform_dev); + if (ret) { + pr_err("platform_device_register ret %d\n", ret); + goto cleanup_debugfs; + } + ret = platform_driver_register(&mic_platform_driver); + if (ret) { + pr_err("platform_driver_register ret %d\n", ret); + goto device_unregister; + } + return ret; + +device_unregister: + platform_device_unregister(&mic_platform_dev); +cleanup_debugfs: + mic_exit_card_debugfs(); +done: + return ret; +} + +static void __exit mic_exit(void) +{ + platform_driver_unregister(&mic_platform_driver); + platform_device_unregister(&mic_platform_dev); + mic_exit_card_debugfs(); +} + +module_init(mic_init); +module_exit(mic_exit); + +MODULE_AUTHOR("Intel Corporation"); +MODULE_DESCRIPTION("Intel(R) MIC X100 Card driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/misc/mic/card/mic_x100.h b/drivers/misc/mic/card/mic_x100.h new file mode 100644 index 000000000000..d66ea55639c3 --- /dev/null +++ b/drivers/misc/mic/card/mic_x100.h @@ -0,0 +1,48 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Disclaimer: The codes contained in these modules may be specific to + * the Intel Software Development Platform codenamed: Knights Ferry, and + * the Intel product codenamed: Knights Corner, and are not backward + * compatible with other Intel products. Additionally, Intel will NOT + * support the codes or instruction set in future products. + * + * Intel MIC Card driver. + * + */ +#ifndef _MIC_X100_CARD_H_ +#define _MIC_X100_CARD_H_ + +#define MIC_X100_MMIO_BASE 0x08007C0000ULL +#define MIC_X100_MMIO_LEN 0x00020000ULL +#define MIC_X100_SBOX_BASE_ADDRESS 0x00010000ULL + +#define MIC_X100_SBOX_SPAD0 0x0000AB20 +#define MIC_X100_SBOX_SDBIC0 0x0000CC90 +#define MIC_X100_SBOX_SDBIC0_DBREQ_BIT 0x80000000 +#define MIC_X100_SBOX_RDMASR0 0x0000B180 + +#define MIC_X100_MAX_DOORBELL_IDX 8 + +#define MIC_X100_NUM_SBOX_IRQ 8 +#define MIC_X100_NUM_RDMASR_IRQ 8 +#define MIC_X100_SBOX_IRQ_BASE 0 +#define MIC_X100_RDMASR_IRQ_BASE 17 + +#define MIC_X100_IRQ_BASE 26 + +#endif diff --git a/drivers/misc/mic/common/mic_dev.h b/drivers/misc/mic/common/mic_dev.h new file mode 100644 index 000000000000..92999c2bbf82 --- /dev/null +++ b/drivers/misc/mic/common/mic_dev.h @@ -0,0 +1,51 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC driver. + * + */ +#ifndef __MIC_DEV_H__ +#define __MIC_DEV_H__ + +/** + * struct mic_mw - MIC memory window + * + * @pa: Base physical address. + * @va: Base ioremap'd virtual address. + * @len: Size of the memory window. + */ +struct mic_mw { + phys_addr_t pa; + void __iomem *va; + resource_size_t len; +}; + +/* + * Scratch pad register offsets used by the host to communicate + * device page DMA address to the card. + */ +#define MIC_DPLO_SPAD 14 +#define MIC_DPHI_SPAD 15 + +/* + * These values are supposed to be in the config_change field of the + * device page when the host sends a config change interrupt to the card. + */ +#define MIC_VIRTIO_PARAM_DEV_REMOVE 0x1 +#define MIC_VIRTIO_PARAM_CONFIG_CHANGED 0x2 + +#endif diff --git a/drivers/misc/mic/host/Makefile b/drivers/misc/mic/host/Makefile new file mode 100644 index 000000000000..c2197f999394 --- /dev/null +++ b/drivers/misc/mic/host/Makefile @@ -0,0 +1,14 @@ +# +# Makefile - Intel MIC Linux driver. +# Copyright(c) 2013, Intel Corporation. +# +obj-$(CONFIG_INTEL_MIC_HOST) += mic_host.o +mic_host-objs := mic_main.o +mic_host-objs += mic_x100.o +mic_host-objs += mic_sysfs.o +mic_host-objs += mic_smpt.o +mic_host-objs += mic_intr.o +mic_host-objs += mic_boot.o +mic_host-objs += mic_debugfs.o +mic_host-objs += mic_fops.o +mic_host-objs += mic_virtio.o diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c new file mode 100644 index 000000000000..b079c65eed6d --- /dev/null +++ b/drivers/misc/mic/host/mic_boot.c @@ -0,0 +1,300 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#include <linux/delay.h> +#include <linux/firmware.h> +#include <linux/pci.h> + +#include <linux/mic_common.h> +#include "../common/mic_dev.h" +#include "mic_device.h" +#include "mic_smpt.h" +#include "mic_virtio.h" + +/** + * mic_reset - Reset the MIC device. + * @mdev: pointer to mic_device instance + */ +static void mic_reset(struct mic_device *mdev) +{ + int i; + +#define MIC_RESET_TO (45) + + INIT_COMPLETION(mdev->reset_wait); + mdev->ops->reset_fw_ready(mdev); + mdev->ops->reset(mdev); + + for (i = 0; i < MIC_RESET_TO; i++) { + if (mdev->ops->is_fw_ready(mdev)) + goto done; + /* + * Resets typically take 10s of seconds to complete. + * Since an MMIO read is required to check if the + * firmware is ready or not, a 1 second delay works nicely. + */ + msleep(1000); + } + mic_set_state(mdev, MIC_RESET_FAILED); +done: + complete_all(&mdev->reset_wait); +} + +/* Initialize the MIC bootparams */ +void mic_bootparam_init(struct mic_device *mdev) +{ + struct mic_bootparam *bootparam = mdev->dp; + + bootparam->magic = MIC_MAGIC; + bootparam->c2h_shutdown_db = mdev->shutdown_db; + bootparam->h2c_shutdown_db = -1; + bootparam->h2c_config_db = -1; + bootparam->shutdown_status = 0; + bootparam->shutdown_card = 0; +} + +/** + * mic_start - Start the MIC. + * @mdev: pointer to mic_device instance + * @buf: buffer containing boot string including firmware/ramdisk path. + * + * This function prepares an MIC for boot and initiates boot. + * RETURNS: An appropriate -ERRNO error value on error, or zero for success. + */ +int mic_start(struct mic_device *mdev, const char *buf) +{ + int rc; + mutex_lock(&mdev->mic_mutex); +retry: + if (MIC_OFFLINE != mdev->state) { + rc = -EINVAL; + goto unlock_ret; + } + if (!mdev->ops->is_fw_ready(mdev)) { + mic_reset(mdev); + /* + * The state will either be MIC_OFFLINE if the reset succeeded + * or MIC_RESET_FAILED if the firmware reset failed. + */ + goto retry; + } + rc = mdev->ops->load_mic_fw(mdev, buf); + if (rc) + goto unlock_ret; + mic_smpt_restore(mdev); + mic_intr_restore(mdev); + mdev->intr_ops->enable_interrupts(mdev); + mdev->ops->write_spad(mdev, MIC_DPLO_SPAD, mdev->dp_dma_addr); + mdev->ops->write_spad(mdev, MIC_DPHI_SPAD, mdev->dp_dma_addr >> 32); + mdev->ops->send_firmware_intr(mdev); + mic_set_state(mdev, MIC_ONLINE); +unlock_ret: + mutex_unlock(&mdev->mic_mutex); + return rc; +} + +/** + * mic_stop - Prepare the MIC for reset and trigger reset. + * @mdev: pointer to mic_device instance + * @force: force a MIC to reset even if it is already offline. + * + * RETURNS: None. + */ +void mic_stop(struct mic_device *mdev, bool force) +{ + mutex_lock(&mdev->mic_mutex); + if (MIC_OFFLINE != mdev->state || force) { + mic_virtio_reset_devices(mdev); + mic_bootparam_init(mdev); + mic_reset(mdev); + if (MIC_RESET_FAILED == mdev->state) + goto unlock; + mic_set_shutdown_status(mdev, MIC_NOP); + if (MIC_SUSPENDED != mdev->state) + mic_set_state(mdev, MIC_OFFLINE); + } +unlock: + mutex_unlock(&mdev->mic_mutex); +} + +/** + * mic_shutdown - Initiate MIC shutdown. + * @mdev: pointer to mic_device instance + * + * RETURNS: None. + */ +void mic_shutdown(struct mic_device *mdev) +{ + struct mic_bootparam *bootparam = mdev->dp; + s8 db = bootparam->h2c_shutdown_db; + + mutex_lock(&mdev->mic_mutex); + if (MIC_ONLINE == mdev->state && db != -1) { + bootparam->shutdown_card = 1; + mdev->ops->send_intr(mdev, db); + mic_set_state(mdev, MIC_SHUTTING_DOWN); + } + mutex_unlock(&mdev->mic_mutex); +} + +/** + * mic_shutdown_work - Handle shutdown interrupt from MIC. + * @work: The work structure. + * + * This work is scheduled whenever the host has received a shutdown + * interrupt from the MIC. + */ +void mic_shutdown_work(struct work_struct *work) +{ + struct mic_device *mdev = container_of(work, struct mic_device, + shutdown_work); + struct mic_bootparam *bootparam = mdev->dp; + + mutex_lock(&mdev->mic_mutex); + mic_set_shutdown_status(mdev, bootparam->shutdown_status); + bootparam->shutdown_status = 0; + + /* + * if state is MIC_SUSPENDED, OSPM suspend is in progress. We do not + * change the state here so as to prevent users from booting the card + * during and after the suspend operation. + */ + if (MIC_SHUTTING_DOWN != mdev->state && + MIC_SUSPENDED != mdev->state) + mic_set_state(mdev, MIC_SHUTTING_DOWN); + mutex_unlock(&mdev->mic_mutex); +} + +/** + * mic_reset_trigger_work - Trigger MIC reset. + * @work: The work structure. + * + * This work is scheduled whenever the host wants to reset the MIC. + */ +void mic_reset_trigger_work(struct work_struct *work) +{ + struct mic_device *mdev = container_of(work, struct mic_device, + reset_trigger_work); + + mic_stop(mdev, false); +} + +/** + * mic_complete_resume - Complete MIC Resume after an OSPM suspend/hibernate + * event. + * @mdev: pointer to mic_device instance + * + * RETURNS: None. + */ +void mic_complete_resume(struct mic_device *mdev) +{ + if (mdev->state != MIC_SUSPENDED) { + dev_warn(mdev->sdev->parent, "state %d should be %d\n", + mdev->state, MIC_SUSPENDED); + return; + } + + /* Make sure firmware is ready */ + if (!mdev->ops->is_fw_ready(mdev)) + mic_stop(mdev, true); + + mutex_lock(&mdev->mic_mutex); + mic_set_state(mdev, MIC_OFFLINE); + mutex_unlock(&mdev->mic_mutex); +} + +/** + * mic_prepare_suspend - Handle suspend notification for the MIC device. + * @mdev: pointer to mic_device instance + * + * RETURNS: None. + */ +void mic_prepare_suspend(struct mic_device *mdev) +{ + int rc; + +#define MIC_SUSPEND_TIMEOUT (60 * HZ) + + mutex_lock(&mdev->mic_mutex); + switch (mdev->state) { + case MIC_OFFLINE: + /* + * Card is already offline. Set state to MIC_SUSPENDED + * to prevent users from booting the card. + */ + mic_set_state(mdev, MIC_SUSPENDED); + mutex_unlock(&mdev->mic_mutex); + break; + case MIC_ONLINE: + /* + * Card is online. Set state to MIC_SUSPENDING and notify + * MIC user space daemon which will issue card + * shutdown and reset. + */ + mic_set_state(mdev, MIC_SUSPENDING); + mutex_unlock(&mdev->mic_mutex); + rc = wait_for_completion_timeout(&mdev->reset_wait, + MIC_SUSPEND_TIMEOUT); + /* Force reset the card if the shutdown completion timed out */ + if (!rc) { + mutex_lock(&mdev->mic_mutex); + mic_set_state(mdev, MIC_SUSPENDED); + mutex_unlock(&mdev->mic_mutex); + mic_stop(mdev, true); + } + break; + case MIC_SHUTTING_DOWN: + /* + * Card is shutting down. Set state to MIC_SUSPENDED + * to prevent further boot of the card. + */ + mic_set_state(mdev, MIC_SUSPENDED); + mutex_unlock(&mdev->mic_mutex); + rc = wait_for_completion_timeout(&mdev->reset_wait, + MIC_SUSPEND_TIMEOUT); + /* Force reset the card if the shutdown completion timed out */ + if (!rc) + mic_stop(mdev, true); + break; + default: + mutex_unlock(&mdev->mic_mutex); + break; + } +} + +/** + * mic_suspend - Initiate MIC suspend. Suspend merely issues card shutdown. + * @mdev: pointer to mic_device instance + * + * RETURNS: None. + */ +void mic_suspend(struct mic_device *mdev) +{ + struct mic_bootparam *bootparam = mdev->dp; + s8 db = bootparam->h2c_shutdown_db; + + mutex_lock(&mdev->mic_mutex); + if (MIC_SUSPENDING == mdev->state && db != -1) { + bootparam->shutdown_card = 1; + mdev->ops->send_intr(mdev, db); + mic_set_state(mdev, MIC_SUSPENDED); + } + mutex_unlock(&mdev->mic_mutex); +} diff --git a/drivers/misc/mic/host/mic_debugfs.c b/drivers/misc/mic/host/mic_debugfs.c new file mode 100644 index 000000000000..028ba5d6fd1c --- /dev/null +++ b/drivers/misc/mic/host/mic_debugfs.c @@ -0,0 +1,491 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#include <linux/debugfs.h> +#include <linux/pci.h> +#include <linux/seq_file.h> + +#include <linux/mic_common.h> +#include "../common/mic_dev.h" +#include "mic_device.h" +#include "mic_smpt.h" +#include "mic_virtio.h" + +/* Debugfs parent dir */ +static struct dentry *mic_dbg; + +/** + * mic_log_buf_show - Display MIC kernel log buffer. + * + * log_buf addr/len is read from System.map by user space + * and populated in sysfs entries. + */ +static int mic_log_buf_show(struct seq_file *s, void *unused) +{ + void __iomem *log_buf_va; + int __iomem *log_buf_len_va; + struct mic_device *mdev = s->private; + void *kva; + int size; + unsigned long aper_offset; + + if (!mdev || !mdev->log_buf_addr || !mdev->log_buf_len) + goto done; + /* + * Card kernel will never be relocated and any kernel text/data mapping + * can be translated to phys address by subtracting __START_KERNEL_map. + */ + aper_offset = (unsigned long)mdev->log_buf_len - __START_KERNEL_map; + log_buf_len_va = mdev->aper.va + aper_offset; + aper_offset = (unsigned long)mdev->log_buf_addr - __START_KERNEL_map; + log_buf_va = mdev->aper.va + aper_offset; + size = ioread32(log_buf_len_va); + + kva = kmalloc(size, GFP_KERNEL); + if (!kva) + goto done; + mutex_lock(&mdev->mic_mutex); + memcpy_fromio(kva, log_buf_va, size); + switch (mdev->state) { + case MIC_ONLINE: + /* Fall through */ + case MIC_SHUTTING_DOWN: + seq_write(s, kva, size); + break; + default: + break; + } + mutex_unlock(&mdev->mic_mutex); + kfree(kva); +done: + return 0; +} + +static int mic_log_buf_open(struct inode *inode, struct file *file) +{ + return single_open(file, mic_log_buf_show, inode->i_private); +} + +static int mic_log_buf_release(struct inode *inode, struct file *file) +{ + return single_release(inode, file); +} + +static const struct file_operations log_buf_ops = { + .owner = THIS_MODULE, + .open = mic_log_buf_open, + .read = seq_read, + .llseek = seq_lseek, + .release = mic_log_buf_release +}; + +static int mic_smpt_show(struct seq_file *s, void *pos) +{ + int i; + struct mic_device *mdev = s->private; + unsigned long flags; + + seq_printf(s, "MIC %-2d |%-10s| %-14s %-10s\n", + mdev->id, "SMPT entry", "SW DMA addr", "RefCount"); + seq_puts(s, "====================================================\n"); + + if (mdev->smpt) { + struct mic_smpt_info *smpt_info = mdev->smpt; + spin_lock_irqsave(&smpt_info->smpt_lock, flags); + for (i = 0; i < smpt_info->info.num_reg; i++) { + seq_printf(s, "%9s|%-10d| %-#14llx %-10lld\n", + " ", i, smpt_info->entry[i].dma_addr, + smpt_info->entry[i].ref_count); + } + spin_unlock_irqrestore(&smpt_info->smpt_lock, flags); + } + seq_puts(s, "====================================================\n"); + return 0; +} + +static int mic_smpt_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, mic_smpt_show, inode->i_private); +} + +static int mic_smpt_debug_release(struct inode *inode, struct file *file) +{ + return single_release(inode, file); +} + +static const struct file_operations smpt_file_ops = { + .owner = THIS_MODULE, + .open = mic_smpt_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = mic_smpt_debug_release +}; + +static int mic_soft_reset_show(struct seq_file *s, void *pos) +{ + struct mic_device *mdev = s->private; + + mic_stop(mdev, true); + return 0; +} + +static int mic_soft_reset_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, mic_soft_reset_show, inode->i_private); +} + +static int mic_soft_reset_debug_release(struct inode *inode, struct file *file) +{ + return single_release(inode, file); +} + +static const struct file_operations soft_reset_ops = { + .owner = THIS_MODULE, + .open = mic_soft_reset_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = mic_soft_reset_debug_release +}; + +static int mic_post_code_show(struct seq_file *s, void *pos) +{ + struct mic_device *mdev = s->private; + u32 reg = mdev->ops->get_postcode(mdev); + + seq_printf(s, "%c%c", reg & 0xff, (reg >> 8) & 0xff); + return 0; +} + +static int mic_post_code_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, mic_post_code_show, inode->i_private); +} + +static int mic_post_code_debug_release(struct inode *inode, struct file *file) +{ + return single_release(inode, file); +} + +static const struct file_operations post_code_ops = { + .owner = THIS_MODULE, + .open = mic_post_code_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = mic_post_code_debug_release +}; + +static int mic_dp_show(struct seq_file *s, void *pos) +{ + struct mic_device *mdev = s->private; + struct mic_device_desc *d; + struct mic_device_ctrl *dc; + struct mic_vqconfig *vqconfig; + __u32 *features; + __u8 *config; + struct mic_bootparam *bootparam = mdev->dp; + int i, j; + + seq_printf(s, "Bootparam: magic 0x%x\n", + bootparam->magic); + seq_printf(s, "Bootparam: h2c_shutdown_db %d\n", + bootparam->h2c_shutdown_db); + seq_printf(s, "Bootparam: h2c_config_db %d\n", + bootparam->h2c_config_db); + seq_printf(s, "Bootparam: c2h_shutdown_db %d\n", + bootparam->c2h_shutdown_db); + seq_printf(s, "Bootparam: shutdown_status %d\n", + bootparam->shutdown_status); + seq_printf(s, "Bootparam: shutdown_card %d\n", + bootparam->shutdown_card); + + for (i = sizeof(*bootparam); i < MIC_DP_SIZE; + i += mic_total_desc_size(d)) { + d = mdev->dp + i; + dc = (void *)d + mic_aligned_desc_size(d); + + /* end of list */ + if (d->type == 0) + break; + + if (d->type == -1) + continue; + + seq_printf(s, "Type %d ", d->type); + seq_printf(s, "Num VQ %d ", d->num_vq); + seq_printf(s, "Feature Len %d\n", d->feature_len); + seq_printf(s, "Config Len %d ", d->config_len); + seq_printf(s, "Shutdown Status %d\n", d->status); + + for (j = 0; j < d->num_vq; j++) { + vqconfig = mic_vq_config(d) + j; + seq_printf(s, "vqconfig[%d]: ", j); + seq_printf(s, "address 0x%llx ", vqconfig->address); + seq_printf(s, "num %d ", vqconfig->num); + seq_printf(s, "used address 0x%llx\n", + vqconfig->used_address); + } + + features = (__u32 *)mic_vq_features(d); + seq_printf(s, "Features: Host 0x%x ", features[0]); + seq_printf(s, "Guest 0x%x\n", features[1]); + + config = mic_vq_configspace(d); + for (j = 0; j < d->config_len; j++) + seq_printf(s, "config[%d]=%d\n", j, config[j]); + + seq_puts(s, "Device control:\n"); + seq_printf(s, "Config Change %d ", dc->config_change); + seq_printf(s, "Vdev reset %d\n", dc->vdev_reset); + seq_printf(s, "Guest Ack %d ", dc->guest_ack); + seq_printf(s, "Host ack %d\n", dc->host_ack); + seq_printf(s, "Used address updated %d ", + dc->used_address_updated); + seq_printf(s, "Vdev 0x%llx\n", dc->vdev); + seq_printf(s, "c2h doorbell %d ", dc->c2h_vdev_db); + seq_printf(s, "h2c doorbell %d\n", dc->h2c_vdev_db); + } + + return 0; +} + +static int mic_dp_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, mic_dp_show, inode->i_private); +} + +static int mic_dp_debug_release(struct inode *inode, struct file *file) +{ + return single_release(inode, file); +} + +static const struct file_operations dp_ops = { + .owner = THIS_MODULE, + .open = mic_dp_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = mic_dp_debug_release +}; + +static int mic_vdev_info_show(struct seq_file *s, void *unused) +{ + struct mic_device *mdev = s->private; + struct list_head *pos, *tmp; + struct mic_vdev *mvdev; + int i, j; + + mutex_lock(&mdev->mic_mutex); + list_for_each_safe(pos, tmp, &mdev->vdev_list) { + mvdev = list_entry(pos, struct mic_vdev, list); + seq_printf(s, "VDEV type %d state %s in %ld out %ld\n", + mvdev->virtio_id, + mic_vdevup(mvdev) ? "UP" : "DOWN", + mvdev->in_bytes, + mvdev->out_bytes); + for (i = 0; i < MIC_MAX_VRINGS; i++) { + struct vring_desc *desc; + struct vring_avail *avail; + struct vring_used *used; + struct mic_vringh *mvr = &mvdev->mvr[i]; + struct vringh *vrh = &mvr->vrh; + int num = vrh->vring.num; + if (!num) + continue; + desc = vrh->vring.desc; + seq_printf(s, "vring i %d avail_idx %d", + i, mvr->vring.info->avail_idx & (num - 1)); + seq_printf(s, " vring i %d avail_idx %d\n", + i, mvr->vring.info->avail_idx); + seq_printf(s, "vrh i %d weak_barriers %d", + i, vrh->weak_barriers); + seq_printf(s, " last_avail_idx %d last_used_idx %d", + vrh->last_avail_idx, vrh->last_used_idx); + seq_printf(s, " completed %d\n", vrh->completed); + for (j = 0; j < num; j++) { + seq_printf(s, "desc[%d] addr 0x%llx len %d", + j, desc->addr, desc->len); + seq_printf(s, " flags 0x%x next %d\n", + desc->flags, desc->next); + desc++; + } + avail = vrh->vring.avail; + seq_printf(s, "avail flags 0x%x idx %d\n", + avail->flags, avail->idx & (num - 1)); + seq_printf(s, "avail flags 0x%x idx %d\n", + avail->flags, avail->idx); + for (j = 0; j < num; j++) + seq_printf(s, "avail ring[%d] %d\n", + j, avail->ring[j]); + used = vrh->vring.used; + seq_printf(s, "used flags 0x%x idx %d\n", + used->flags, used->idx & (num - 1)); + seq_printf(s, "used flags 0x%x idx %d\n", + used->flags, used->idx); + for (j = 0; j < num; j++) + seq_printf(s, "used ring[%d] id %d len %d\n", + j, used->ring[j].id, + used->ring[j].len); + } + } + mutex_unlock(&mdev->mic_mutex); + + return 0; +} + +static int mic_vdev_info_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, mic_vdev_info_show, inode->i_private); +} + +static int mic_vdev_info_debug_release(struct inode *inode, struct file *file) +{ + return single_release(inode, file); +} + +static const struct file_operations vdev_info_ops = { + .owner = THIS_MODULE, + .open = mic_vdev_info_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = mic_vdev_info_debug_release +}; + +static int mic_msi_irq_info_show(struct seq_file *s, void *pos) +{ + struct mic_device *mdev = s->private; + int reg; + int i, j; + u16 entry; + u16 vector; + struct pci_dev *pdev = container_of(mdev->sdev->parent, + struct pci_dev, dev); + + if (pci_dev_msi_enabled(pdev)) { + for (i = 0; i < mdev->irq_info.num_vectors; i++) { + if (pdev->msix_enabled) { + entry = mdev->irq_info.msix_entries[i].entry; + vector = mdev->irq_info.msix_entries[i].vector; + } else { + entry = 0; + vector = pdev->irq; + } + + reg = mdev->intr_ops->read_msi_to_src_map(mdev, entry); + + seq_printf(s, "%s %-10d %s %-10d MXAR[%d]: %08X\n", + "IRQ:", vector, "Entry:", entry, i, reg); + + seq_printf(s, "%-10s", "offset:"); + for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--) + seq_printf(s, "%4d ", j); + seq_puts(s, "\n"); + + + seq_printf(s, "%-10s", "count:"); + for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--) + seq_printf(s, "%4d ", + (mdev->irq_info.mic_msi_map[i] & + BIT(j)) ? 1 : 0); + seq_puts(s, "\n\n"); + } + } else { + seq_puts(s, "MSI/MSIx interrupts not enabled\n"); + } + + return 0; +} + +static int mic_msi_irq_info_debug_open(struct inode *inode, struct file *file) +{ + return single_open(file, mic_msi_irq_info_show, inode->i_private); +} + +static int +mic_msi_irq_info_debug_release(struct inode *inode, struct file *file) +{ + return single_release(inode, file); +} + +static const struct file_operations msi_irq_info_ops = { + .owner = THIS_MODULE, + .open = mic_msi_irq_info_debug_open, + .read = seq_read, + .llseek = seq_lseek, + .release = mic_msi_irq_info_debug_release +}; + +/** + * mic_create_debug_dir - Initialize MIC debugfs entries. + */ +void mic_create_debug_dir(struct mic_device *mdev) +{ + if (!mic_dbg) + return; + + mdev->dbg_dir = debugfs_create_dir(dev_name(mdev->sdev), mic_dbg); + if (!mdev->dbg_dir) + return; + + debugfs_create_file("log_buf", 0444, mdev->dbg_dir, mdev, &log_buf_ops); + + debugfs_create_file("smpt", 0444, mdev->dbg_dir, mdev, &smpt_file_ops); + + debugfs_create_file("soft_reset", 0444, mdev->dbg_dir, mdev, + &soft_reset_ops); + + debugfs_create_file("post_code", 0444, mdev->dbg_dir, mdev, + &post_code_ops); + + debugfs_create_file("dp", 0444, mdev->dbg_dir, mdev, &dp_ops); + + debugfs_create_file("vdev_info", 0444, mdev->dbg_dir, mdev, + &vdev_info_ops); + + debugfs_create_file("msi_irq_info", 0444, mdev->dbg_dir, mdev, + &msi_irq_info_ops); +} + +/** + * mic_delete_debug_dir - Uninitialize MIC debugfs entries. + */ +void mic_delete_debug_dir(struct mic_device *mdev) +{ + if (!mdev->dbg_dir) + return; + + debugfs_remove_recursive(mdev->dbg_dir); +} + +/** + * mic_init_debugfs - Initialize global debugfs entry. + */ +void __init mic_init_debugfs(void) +{ + mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL); + if (!mic_dbg) + pr_err("can't create debugfs dir\n"); +} + +/** + * mic_exit_debugfs - Uninitialize global debugfs entry + */ +void mic_exit_debugfs(void) +{ + debugfs_remove(mic_dbg); +} diff --git a/drivers/misc/mic/host/mic_device.h b/drivers/misc/mic/host/mic_device.h new file mode 100644 index 000000000000..3574cc375bb9 --- /dev/null +++ b/drivers/misc/mic/host/mic_device.h @@ -0,0 +1,203 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#ifndef _MIC_DEVICE_H_ +#define _MIC_DEVICE_H_ + +#include <linux/cdev.h> +#include <linux/idr.h> +#include <linux/notifier.h> + +#include "mic_intr.h" + +/* The maximum number of MIC devices supported in a single host system. */ +#define MIC_MAX_NUM_DEVS 256 + +/** + * enum mic_hw_family - The hardware family to which a device belongs. + */ +enum mic_hw_family { + MIC_FAMILY_X100 = 0, + MIC_FAMILY_UNKNOWN +}; + +/** + * enum mic_stepping - MIC stepping ids. + */ +enum mic_stepping { + MIC_A0_STEP = 0x0, + MIC_B0_STEP = 0x10, + MIC_B1_STEP = 0x11, + MIC_C0_STEP = 0x20, +}; + +/** + * struct mic_device - MIC device information for each card. + * + * @mmio: MMIO bar information. + * @aper: Aperture bar information. + * @family: The MIC family to which this device belongs. + * @ops: MIC HW specific operations. + * @id: The unique device id for this MIC device. + * @stepping: Stepping ID. + * @attr_group: Pointer to list of sysfs attribute groups. + * @sdev: Device for sysfs entries. + * @mic_mutex: Mutex for synchronizing access to mic_device. + * @intr_ops: HW specific interrupt operations. + * @smpt_ops: Hardware specific SMPT operations. + * @smpt: MIC SMPT information. + * @intr_info: H/W specific interrupt information. + * @irq_info: The OS specific irq information + * @dbg_dir: debugfs directory of this MIC device. + * @cmdline: Kernel command line. + * @firmware: Firmware file name. + * @ramdisk: Ramdisk file name. + * @bootmode: Boot mode i.e. "linux" or "elf" for flash updates. + * @bootaddr: MIC boot address. + * @reset_trigger_work: Work for triggering reset requests. + * @shutdown_work: Work for handling shutdown interrupts. + * @state: MIC state. + * @shutdown_status: MIC status reported by card for shutdown/crashes. + * @state_sysfs: Sysfs dirent for notifying ring 3 about MIC state changes. + * @reset_wait: Waitqueue for sleeping while reset completes. + * @log_buf_addr: Log buffer address for MIC. + * @log_buf_len: Log buffer length address for MIC. + * @dp: virtio device page + * @dp_dma_addr: virtio device page DMA address. + * @shutdown_db: shutdown doorbell. + * @shutdown_cookie: shutdown cookie. + * @cdev: Character device for MIC. + * @vdev_list: list of virtio devices. + * @pm_notifier: Handles PM notifications from the OS. + */ +struct mic_device { + struct mic_mw mmio; + struct mic_mw aper; + enum mic_hw_family family; + struct mic_hw_ops *ops; + int id; + enum mic_stepping stepping; + const struct attribute_group **attr_group; + struct device *sdev; + struct mutex mic_mutex; + struct mic_hw_intr_ops *intr_ops; + struct mic_smpt_ops *smpt_ops; + struct mic_smpt_info *smpt; + struct mic_intr_info *intr_info; + struct mic_irq_info irq_info; + struct dentry *dbg_dir; + char *cmdline; + char *firmware; + char *ramdisk; + char *bootmode; + u32 bootaddr; + struct work_struct reset_trigger_work; + struct work_struct shutdown_work; + u8 state; + u8 shutdown_status; + struct sysfs_dirent *state_sysfs; + struct completion reset_wait; + void *log_buf_addr; + int *log_buf_len; + void *dp; + dma_addr_t dp_dma_addr; + int shutdown_db; + struct mic_irq *shutdown_cookie; + struct cdev cdev; + struct list_head vdev_list; + struct notifier_block pm_notifier; +}; + +/** + * struct mic_hw_ops - MIC HW specific operations. + * @aper_bar: Aperture bar resource number. + * @mmio_bar: MMIO bar resource number. + * @read_spad: Read from scratch pad register. + * @write_spad: Write to scratch pad register. + * @send_intr: Send an interrupt for a particular doorbell on the card. + * @ack_interrupt: Hardware specific operations to ack the h/w on + * receipt of an interrupt. + * @reset: Reset the remote processor. + * @reset_fw_ready: Reset firmware ready field. + * @is_fw_ready: Check if firmware is ready for OS download. + * @send_firmware_intr: Send an interrupt to the card firmware. + * @load_mic_fw: Load firmware segments required to boot the card + * into card memory. This includes the kernel, command line, ramdisk etc. + * @get_postcode: Get post code status from firmware. + */ +struct mic_hw_ops { + u8 aper_bar; + u8 mmio_bar; + u32 (*read_spad)(struct mic_device *mdev, unsigned int idx); + void (*write_spad)(struct mic_device *mdev, unsigned int idx, u32 val); + void (*send_intr)(struct mic_device *mdev, int doorbell); + u32 (*ack_interrupt)(struct mic_device *mdev); + void (*reset)(struct mic_device *mdev); + void (*reset_fw_ready)(struct mic_device *mdev); + bool (*is_fw_ready)(struct mic_device *mdev); + void (*send_firmware_intr)(struct mic_device *mdev); + int (*load_mic_fw)(struct mic_device *mdev, const char *buf); + u32 (*get_postcode)(struct mic_device *mdev); +}; + +/** + * mic_mmio_read - read from an MMIO register. + * @mw: MMIO register base virtual address. + * @offset: register offset. + * + * RETURNS: register value. + */ +static inline u32 mic_mmio_read(struct mic_mw *mw, u32 offset) +{ + return ioread32(mw->va + offset); +} + +/** + * mic_mmio_write - write to an MMIO register. + * @mw: MMIO register base virtual address. + * @val: the data value to put into the register + * @offset: register offset. + * + * RETURNS: none. + */ +static inline void +mic_mmio_write(struct mic_mw *mw, u32 val, u32 offset) +{ + iowrite32(val, mw->va + offset); +} + +void mic_sysfs_init(struct mic_device *mdev); +int mic_start(struct mic_device *mdev, const char *buf); +void mic_stop(struct mic_device *mdev, bool force); +void mic_shutdown(struct mic_device *mdev); +void mic_reset_delayed_work(struct work_struct *work); +void mic_reset_trigger_work(struct work_struct *work); +void mic_shutdown_work(struct work_struct *work); +void mic_bootparam_init(struct mic_device *mdev); +void mic_set_state(struct mic_device *mdev, u8 state); +void mic_set_shutdown_status(struct mic_device *mdev, u8 status); +void mic_create_debug_dir(struct mic_device *dev); +void mic_delete_debug_dir(struct mic_device *dev); +void __init mic_init_debugfs(void); +void mic_exit_debugfs(void); +void mic_prepare_suspend(struct mic_device *mdev); +void mic_complete_resume(struct mic_device *mdev); +void mic_suspend(struct mic_device *mdev); +#endif diff --git a/drivers/misc/mic/host/mic_fops.c b/drivers/misc/mic/host/mic_fops.c new file mode 100644 index 000000000000..85776d7327f3 --- /dev/null +++ b/drivers/misc/mic/host/mic_fops.c @@ -0,0 +1,222 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#include <linux/poll.h> +#include <linux/pci.h> + +#include <linux/mic_common.h> +#include "../common/mic_dev.h" +#include "mic_device.h" +#include "mic_fops.h" +#include "mic_virtio.h" + +int mic_open(struct inode *inode, struct file *f) +{ + struct mic_vdev *mvdev; + struct mic_device *mdev = container_of(inode->i_cdev, + struct mic_device, cdev); + + mvdev = kzalloc(sizeof(*mvdev), GFP_KERNEL); + if (!mvdev) + return -ENOMEM; + + init_waitqueue_head(&mvdev->waitq); + INIT_LIST_HEAD(&mvdev->list); + mvdev->mdev = mdev; + mvdev->virtio_id = -1; + + f->private_data = mvdev; + return 0; +} + +int mic_release(struct inode *inode, struct file *f) +{ + struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data; + + if (-1 != mvdev->virtio_id) + mic_virtio_del_device(mvdev); + f->private_data = NULL; + kfree(mvdev); + return 0; +} + +long mic_ioctl(struct file *f, unsigned int cmd, unsigned long arg) +{ + struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data; + void __user *argp = (void __user *)arg; + int ret; + + switch (cmd) { + case MIC_VIRTIO_ADD_DEVICE: + { + ret = mic_virtio_add_device(mvdev, argp); + if (ret < 0) { + dev_err(mic_dev(mvdev), + "%s %d errno ret %d\n", + __func__, __LINE__, ret); + return ret; + } + break; + } + case MIC_VIRTIO_COPY_DESC: + { + struct mic_copy_desc copy; + + ret = mic_vdev_inited(mvdev); + if (ret) + return ret; + + if (copy_from_user(©, argp, sizeof(copy))) + return -EFAULT; + + dev_dbg(mic_dev(mvdev), + "%s %d === iovcnt 0x%x vr_idx 0x%x update_used %d\n", + __func__, __LINE__, copy.iovcnt, copy.vr_idx, + copy.update_used); + + ret = mic_virtio_copy_desc(mvdev, ©); + if (ret < 0) { + dev_err(mic_dev(mvdev), + "%s %d errno ret %d\n", + __func__, __LINE__, ret); + return ret; + } + if (copy_to_user( + &((struct mic_copy_desc __user *)argp)->out_len, + ©.out_len, sizeof(copy.out_len))) { + dev_err(mic_dev(mvdev), "%s %d errno ret %d\n", + __func__, __LINE__, -EFAULT); + return -EFAULT; + } + break; + } + case MIC_VIRTIO_CONFIG_CHANGE: + { + ret = mic_vdev_inited(mvdev); + if (ret) + return ret; + + ret = mic_virtio_config_change(mvdev, argp); + if (ret < 0) { + dev_err(mic_dev(mvdev), + "%s %d errno ret %d\n", + __func__, __LINE__, ret); + return ret; + } + break; + } + default: + return -ENOIOCTLCMD; + }; + return 0; +} + +/* + * We return POLLIN | POLLOUT from poll when new buffers are enqueued, and + * not when previously enqueued buffers may be available. This means that + * in the card->host (TX) path, when userspace is unblocked by poll it + * must drain all available descriptors or it can stall. + */ +unsigned int mic_poll(struct file *f, poll_table *wait) +{ + struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data; + int mask = 0; + + poll_wait(f, &mvdev->waitq, wait); + + if (mic_vdev_inited(mvdev)) { + mask = POLLERR; + } else if (mvdev->poll_wake) { + mvdev->poll_wake = 0; + mask = POLLIN | POLLOUT; + } + + return mask; +} + +static inline int +mic_query_offset(struct mic_vdev *mvdev, unsigned long offset, + unsigned long *size, unsigned long *pa) +{ + struct mic_device *mdev = mvdev->mdev; + unsigned long start = MIC_DP_SIZE; + int i; + + /* + * MMAP interface is as follows: + * offset region + * 0x0 virtio device_page + * 0x1000 first vring + * 0x1000 + size of 1st vring second vring + * .... + */ + if (!offset) { + *pa = virt_to_phys(mdev->dp); + *size = MIC_DP_SIZE; + return 0; + } + + for (i = 0; i < mvdev->dd->num_vq; i++) { + struct mic_vringh *mvr = &mvdev->mvr[i]; + if (offset == start) { + *pa = virt_to_phys(mvr->vring.va); + *size = mvr->vring.len; + return 0; + } + start += mvr->vring.len; + } + return -1; +} + +/* + * Maps the device page and virtio rings to user space for readonly access. + */ +int +mic_mmap(struct file *f, struct vm_area_struct *vma) +{ + struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data; + unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; + unsigned long pa, size = vma->vm_end - vma->vm_start, size_rem = size; + int i, err; + + err = mic_vdev_inited(mvdev); + if (err) + return err; + + if (vma->vm_flags & VM_WRITE) + return -EACCES; + + while (size_rem) { + i = mic_query_offset(mvdev, offset, &size, &pa); + if (i < 0) + return -EINVAL; + err = remap_pfn_range(vma, vma->vm_start + offset, + pa >> PAGE_SHIFT, size, vma->vm_page_prot); + if (err) + return err; + dev_dbg(mic_dev(mvdev), + "%s %d type %d size 0x%lx off 0x%lx pa 0x%lx vma 0x%lx\n", + __func__, __LINE__, mvdev->virtio_id, size, offset, + pa, vma->vm_start + offset); + size_rem -= size; + offset += size; + } + return 0; +} diff --git a/drivers/misc/mic/host/mic_fops.h b/drivers/misc/mic/host/mic_fops.h new file mode 100644 index 000000000000..dc3893dff667 --- /dev/null +++ b/drivers/misc/mic/host/mic_fops.h @@ -0,0 +1,32 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#ifndef _MIC_FOPS_H_ +#define _MIC_FOPS_H_ + +int mic_open(struct inode *inode, struct file *filp); +int mic_release(struct inode *inode, struct file *filp); +ssize_t mic_read(struct file *filp, char __user *buf, + size_t count, loff_t *pos); +long mic_ioctl(struct file *filp, unsigned int cmd, unsigned long arg); +int mic_mmap(struct file *f, struct vm_area_struct *vma); +unsigned int mic_poll(struct file *f, poll_table *wait); + +#endif diff --git a/drivers/misc/mic/host/mic_intr.c b/drivers/misc/mic/host/mic_intr.c new file mode 100644 index 000000000000..f9c29bc918bc --- /dev/null +++ b/drivers/misc/mic/host/mic_intr.c @@ -0,0 +1,630 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#include <linux/pci.h> +#include <linux/interrupt.h> + +#include "../common/mic_dev.h" +#include "mic_device.h" + +/* + * mic_invoke_callback - Invoke callback functions registered for + * the corresponding source id. + * + * @mdev: pointer to the mic_device instance + * @idx: The interrupt source id. + * + * Returns none. + */ +static inline void mic_invoke_callback(struct mic_device *mdev, int idx) +{ + struct mic_intr_cb *intr_cb; + struct pci_dev *pdev = container_of(mdev->sdev->parent, + struct pci_dev, dev); + + spin_lock(&mdev->irq_info.mic_intr_lock); + list_for_each_entry(intr_cb, &mdev->irq_info.cb_list[idx], list) + if (intr_cb->func) + intr_cb->func(pdev->irq, intr_cb->data); + spin_unlock(&mdev->irq_info.mic_intr_lock); +} + +/** + * mic_interrupt - Generic interrupt handler for + * MSI and INTx based interrupts. + */ +static irqreturn_t mic_interrupt(int irq, void *dev) +{ + struct mic_device *mdev = dev; + struct mic_intr_info *info = mdev->intr_info; + u32 mask; + int i; + + mask = mdev->ops->ack_interrupt(mdev); + if (!mask) + return IRQ_NONE; + + for (i = info->intr_start_idx[MIC_INTR_DB]; + i < info->intr_len[MIC_INTR_DB]; i++) + if (mask & BIT(i)) + mic_invoke_callback(mdev, i); + + return IRQ_HANDLED; +} + +/* Return the interrupt offset from the index. Index is 0 based. */ +static u16 mic_map_src_to_offset(struct mic_device *mdev, + int intr_src, enum mic_intr_type type) +{ + if (type >= MIC_NUM_INTR_TYPES) + return MIC_NUM_OFFSETS; + if (intr_src >= mdev->intr_info->intr_len[type]) + return MIC_NUM_OFFSETS; + + return mdev->intr_info->intr_start_idx[type] + intr_src; +} + +/* Return next available msix_entry. */ +static struct msix_entry *mic_get_available_vector(struct mic_device *mdev) +{ + int i; + struct mic_irq_info *info = &mdev->irq_info; + + for (i = 0; i < info->num_vectors; i++) + if (!info->mic_msi_map[i]) + return &info->msix_entries[i]; + return NULL; +} + +/** + * mic_register_intr_callback - Register a callback handler for the + * given source id. + * + * @mdev: pointer to the mic_device instance + * @idx: The source id to be registered. + * @func: The function to be called when the source id receives + * the interrupt. + * @data: Private data of the requester. + * Return the callback structure that was registered or an + * appropriate error on failure. + */ +static struct mic_intr_cb *mic_register_intr_callback(struct mic_device *mdev, + u8 idx, irqreturn_t (*func) (int irq, void *dev), + void *data) +{ + struct mic_intr_cb *intr_cb; + unsigned long flags; + int rc; + intr_cb = kmalloc(sizeof(*intr_cb), GFP_KERNEL); + + if (!intr_cb) + return ERR_PTR(-ENOMEM); + + intr_cb->func = func; + intr_cb->data = data; + intr_cb->cb_id = ida_simple_get(&mdev->irq_info.cb_ida, + 0, 0, GFP_KERNEL); + if (intr_cb->cb_id < 0) { + rc = intr_cb->cb_id; + goto ida_fail; + } + + spin_lock_irqsave(&mdev->irq_info.mic_intr_lock, flags); + list_add_tail(&intr_cb->list, &mdev->irq_info.cb_list[idx]); + spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock, flags); + + return intr_cb; +ida_fail: + kfree(intr_cb); + return ERR_PTR(rc); +} + +/** + * mic_unregister_intr_callback - Unregister the callback handler + * identified by its callback id. + * + * @mdev: pointer to the mic_device instance + * @idx: The callback structure id to be unregistered. + * Return the source id that was unregistered or MIC_NUM_OFFSETS if no + * such callback handler was found. + */ +static u8 mic_unregister_intr_callback(struct mic_device *mdev, u32 idx) +{ + struct list_head *pos, *tmp; + struct mic_intr_cb *intr_cb; + unsigned long flags; + int i; + + for (i = 0; i < MIC_NUM_OFFSETS; i++) { + spin_lock_irqsave(&mdev->irq_info.mic_intr_lock, flags); + list_for_each_safe(pos, tmp, &mdev->irq_info.cb_list[i]) { + intr_cb = list_entry(pos, struct mic_intr_cb, list); + if (intr_cb->cb_id == idx) { + list_del(pos); + ida_simple_remove(&mdev->irq_info.cb_ida, + intr_cb->cb_id); + kfree(intr_cb); + spin_unlock_irqrestore( + &mdev->irq_info.mic_intr_lock, flags); + return i; + } + } + spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock, flags); + } + return MIC_NUM_OFFSETS; +} + +/** + * mic_setup_msix - Initializes MSIx interrupts. + * + * @mdev: pointer to mic_device instance + * + * + * RETURNS: An appropriate -ERRNO error value on error, or zero for success. + */ +static int mic_setup_msix(struct mic_device *mdev, struct pci_dev *pdev) +{ + int rc, i; + int entry_size = sizeof(*mdev->irq_info.msix_entries); + + mdev->irq_info.msix_entries = kmalloc_array(MIC_MIN_MSIX, + entry_size, GFP_KERNEL); + if (!mdev->irq_info.msix_entries) { + rc = -ENOMEM; + goto err_nomem1; + } + + for (i = 0; i < MIC_MIN_MSIX; i++) + mdev->irq_info.msix_entries[i].entry = i; + + rc = pci_enable_msix(pdev, mdev->irq_info.msix_entries, + MIC_MIN_MSIX); + if (rc) { + dev_dbg(&pdev->dev, "Error enabling MSIx. rc = %d\n", rc); + goto err_enable_msix; + } + + mdev->irq_info.num_vectors = MIC_MIN_MSIX; + mdev->irq_info.mic_msi_map = kzalloc((sizeof(u32) * + mdev->irq_info.num_vectors), GFP_KERNEL); + + if (!mdev->irq_info.mic_msi_map) { + rc = -ENOMEM; + goto err_nomem2; + } + + dev_dbg(mdev->sdev->parent, + "%d MSIx irqs setup\n", mdev->irq_info.num_vectors); + return 0; +err_nomem2: + pci_disable_msix(pdev); +err_enable_msix: + kfree(mdev->irq_info.msix_entries); +err_nomem1: + mdev->irq_info.num_vectors = 0; + return rc; +} + +/** + * mic_setup_callbacks - Initialize data structures needed + * to handle callbacks. + * + * @mdev: pointer to mic_device instance + */ +static int mic_setup_callbacks(struct mic_device *mdev) +{ + int i; + + mdev->irq_info.cb_list = kmalloc_array(MIC_NUM_OFFSETS, + sizeof(*mdev->irq_info.cb_list), + GFP_KERNEL); + if (!mdev->irq_info.cb_list) + return -ENOMEM; + + for (i = 0; i < MIC_NUM_OFFSETS; i++) + INIT_LIST_HEAD(&mdev->irq_info.cb_list[i]); + ida_init(&mdev->irq_info.cb_ida); + spin_lock_init(&mdev->irq_info.mic_intr_lock); + return 0; +} + +/** + * mic_release_callbacks - Uninitialize data structures needed + * to handle callbacks. + * + * @mdev: pointer to mic_device instance + */ +static void mic_release_callbacks(struct mic_device *mdev) +{ + unsigned long flags; + struct list_head *pos, *tmp; + struct mic_intr_cb *intr_cb; + int i; + + for (i = 0; i < MIC_NUM_OFFSETS; i++) { + spin_lock_irqsave(&mdev->irq_info.mic_intr_lock, flags); + + if (list_empty(&mdev->irq_info.cb_list[i])) { + spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock, + flags); + break; + } + + list_for_each_safe(pos, tmp, &mdev->irq_info.cb_list[i]) { + intr_cb = list_entry(pos, struct mic_intr_cb, list); + list_del(pos); + ida_simple_remove(&mdev->irq_info.cb_ida, + intr_cb->cb_id); + kfree(intr_cb); + } + spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock, flags); + } + ida_destroy(&mdev->irq_info.cb_ida); + kfree(mdev->irq_info.cb_list); +} + +/** + * mic_setup_msi - Initializes MSI interrupts. + * + * @mdev: pointer to mic_device instance + * @pdev: PCI device structure + * + * RETURNS: An appropriate -ERRNO error value on error, or zero for success. + */ +static int mic_setup_msi(struct mic_device *mdev, struct pci_dev *pdev) +{ + int rc; + + rc = pci_enable_msi(pdev); + if (rc) { + dev_dbg(&pdev->dev, "Error enabling MSI. rc = %d\n", rc); + return rc; + } + + mdev->irq_info.num_vectors = 1; + mdev->irq_info.mic_msi_map = kzalloc((sizeof(u32) * + mdev->irq_info.num_vectors), GFP_KERNEL); + + if (!mdev->irq_info.mic_msi_map) { + rc = -ENOMEM; + goto err_nomem1; + } + + rc = mic_setup_callbacks(mdev); + if (rc) { + dev_err(&pdev->dev, "Error setting up callbacks\n"); + goto err_nomem2; + } + + rc = request_irq(pdev->irq, mic_interrupt, 0 , "mic-msi", mdev); + if (rc) { + dev_err(&pdev->dev, "Error allocating MSI interrupt\n"); + goto err_irq_req_fail; + } + + dev_dbg(&pdev->dev, "%d MSI irqs setup\n", mdev->irq_info.num_vectors); + return 0; +err_irq_req_fail: + mic_release_callbacks(mdev); +err_nomem2: + kfree(mdev->irq_info.mic_msi_map); +err_nomem1: + pci_disable_msi(pdev); + mdev->irq_info.num_vectors = 0; + return rc; +} + +/** + * mic_setup_intx - Initializes legacy interrupts. + * + * @mdev: pointer to mic_device instance + * @pdev: PCI device structure + * + * RETURNS: An appropriate -ERRNO error value on error, or zero for success. + */ +static int mic_setup_intx(struct mic_device *mdev, struct pci_dev *pdev) +{ + int rc; + + pci_msi_off(pdev); + + /* Enable intx */ + pci_intx(pdev, 1); + rc = mic_setup_callbacks(mdev); + if (rc) { + dev_err(&pdev->dev, "Error setting up callbacks\n"); + goto err_nomem; + } + + rc = request_irq(pdev->irq, mic_interrupt, + IRQF_SHARED, "mic-intx", mdev); + if (rc) + goto err; + + dev_dbg(&pdev->dev, "intx irq setup\n"); + return 0; +err: + mic_release_callbacks(mdev); +err_nomem: + return rc; +} + +/** + * mic_next_db - Retrieve the next doorbell interrupt source id. + * The id is picked sequentially from the available pool of + * doorlbell ids. + * + * @mdev: pointer to the mic_device instance. + * + * Returns the next doorbell interrupt source. + */ +int mic_next_db(struct mic_device *mdev) +{ + int next_db; + + next_db = mdev->irq_info.next_avail_src % + mdev->intr_info->intr_len[MIC_INTR_DB]; + mdev->irq_info.next_avail_src++; + return next_db; +} + +#define COOKIE_ID_SHIFT 16 +#define GET_ENTRY(cookie) ((cookie) & 0xFFFF) +#define GET_OFFSET(cookie) ((cookie) >> COOKIE_ID_SHIFT) +#define MK_COOKIE(x, y) ((x) | (y) << COOKIE_ID_SHIFT) + +/** + * mic_request_irq - request an irq. mic_mutex needs + * to be held before calling this function. + * + * @mdev: pointer to mic_device instance + * @func: The callback function that handles the interrupt. + * The function needs to call ack_interrupts + * (mdev->ops->ack_interrupt(mdev)) when handling the interrupts. + * @name: The ASCII name of the callee requesting the irq. + * @data: private data that is returned back when calling the + * function handler. + * @intr_src: The source id of the requester. Its the doorbell id + * for Doorbell interrupts and DMA channel id for DMA interrupts. + * @type: The type of interrupt. Values defined in mic_intr_type + * + * returns: The cookie that is transparent to the caller. Passed + * back when calling mic_free_irq. An appropriate error code + * is returned on failure. Caller needs to use IS_ERR(return_val) + * to check for failure and PTR_ERR(return_val) to obtained the + * error code. + * + */ +struct mic_irq *mic_request_irq(struct mic_device *mdev, + irqreturn_t (*func)(int irq, void *dev), + const char *name, void *data, int intr_src, + enum mic_intr_type type) +{ + u16 offset; + int rc = 0; + struct msix_entry *msix = NULL; + unsigned long cookie = 0; + u16 entry; + struct mic_intr_cb *intr_cb; + struct pci_dev *pdev = container_of(mdev->sdev->parent, + struct pci_dev, dev); + + offset = mic_map_src_to_offset(mdev, intr_src, type); + if (offset >= MIC_NUM_OFFSETS) { + dev_err(mdev->sdev->parent, + "Error mapping index %d to a valid source id.\n", + intr_src); + rc = -EINVAL; + goto err; + } + + if (mdev->irq_info.num_vectors > 1) { + msix = mic_get_available_vector(mdev); + if (!msix) { + dev_err(mdev->sdev->parent, + "No MSIx vectors available for use.\n"); + rc = -ENOSPC; + goto err; + } + + rc = request_irq(msix->vector, func, 0, name, data); + if (rc) { + dev_dbg(mdev->sdev->parent, + "request irq failed rc = %d\n", rc); + goto err; + } + entry = msix->entry; + mdev->irq_info.mic_msi_map[entry] |= BIT(offset); + mdev->intr_ops->program_msi_to_src_map(mdev, + entry, offset, true); + cookie = MK_COOKIE(entry, offset); + dev_dbg(mdev->sdev->parent, "irq: %d assigned for src: %d\n", + msix->vector, intr_src); + } else { + intr_cb = mic_register_intr_callback(mdev, + offset, func, data); + if (IS_ERR(intr_cb)) { + dev_err(mdev->sdev->parent, + "No available callback entries for use\n"); + rc = PTR_ERR(intr_cb); + goto err; + } + + entry = 0; + if (pci_dev_msi_enabled(pdev)) { + mdev->irq_info.mic_msi_map[entry] |= (1 << offset); + mdev->intr_ops->program_msi_to_src_map(mdev, + entry, offset, true); + } + cookie = MK_COOKIE(entry, intr_cb->cb_id); + dev_dbg(mdev->sdev->parent, "callback %d registered for src: %d\n", + intr_cb->cb_id, intr_src); + } + return (struct mic_irq *)cookie; +err: + return ERR_PTR(rc); +} + +/** + * mic_free_irq - free irq. mic_mutex + * needs to be held before calling this function. + * + * @mdev: pointer to mic_device instance + * @cookie: cookie obtained during a successful call to mic_request_irq + * @data: private data specified by the calling function during the + * mic_request_irq + * + * returns: none. + */ +void mic_free_irq(struct mic_device *mdev, + struct mic_irq *cookie, void *data) +{ + u32 offset; + u32 entry; + u8 src_id; + unsigned int irq; + struct pci_dev *pdev = container_of(mdev->sdev->parent, + struct pci_dev, dev); + + entry = GET_ENTRY((unsigned long)cookie); + offset = GET_OFFSET((unsigned long)cookie); + if (mdev->irq_info.num_vectors > 1) { + if (entry >= mdev->irq_info.num_vectors) { + dev_warn(mdev->sdev->parent, + "entry %d should be < num_irq %d\n", + entry, mdev->irq_info.num_vectors); + return; + } + irq = mdev->irq_info.msix_entries[entry].vector; + free_irq(irq, data); + mdev->irq_info.mic_msi_map[entry] &= ~(BIT(offset)); + mdev->intr_ops->program_msi_to_src_map(mdev, + entry, offset, false); + + dev_dbg(mdev->sdev->parent, "irq: %d freed\n", irq); + } else { + irq = pdev->irq; + src_id = mic_unregister_intr_callback(mdev, offset); + if (src_id >= MIC_NUM_OFFSETS) { + dev_warn(mdev->sdev->parent, "Error unregistering callback\n"); + return; + } + if (pci_dev_msi_enabled(pdev)) { + mdev->irq_info.mic_msi_map[entry] &= ~(BIT(src_id)); + mdev->intr_ops->program_msi_to_src_map(mdev, + entry, src_id, false); + } + dev_dbg(mdev->sdev->parent, "callback %d unregistered for src: %d\n", + offset, src_id); + } +} + +/** + * mic_setup_interrupts - Initializes interrupts. + * + * @mdev: pointer to mic_device instance + * @pdev: PCI device structure + * + * RETURNS: An appropriate -ERRNO error value on error, or zero for success. + */ +int mic_setup_interrupts(struct mic_device *mdev, struct pci_dev *pdev) +{ + int rc; + + rc = mic_setup_msix(mdev, pdev); + if (!rc) + goto done; + + rc = mic_setup_msi(mdev, pdev); + if (!rc) + goto done; + + rc = mic_setup_intx(mdev, pdev); + if (rc) { + dev_err(mdev->sdev->parent, "no usable interrupts\n"); + return rc; + } +done: + mdev->intr_ops->enable_interrupts(mdev); + return 0; +} + +/** + * mic_free_interrupts - Frees interrupts setup by mic_setup_interrupts + * + * @mdev: pointer to mic_device instance + * @pdev: PCI device structure + * + * returns none. + */ +void mic_free_interrupts(struct mic_device *mdev, struct pci_dev *pdev) +{ + int i; + + mdev->intr_ops->disable_interrupts(mdev); + if (mdev->irq_info.num_vectors > 1) { + for (i = 0; i < mdev->irq_info.num_vectors; i++) { + if (mdev->irq_info.mic_msi_map[i]) + dev_warn(&pdev->dev, "irq %d may still be in use.\n", + mdev->irq_info.msix_entries[i].vector); + } + kfree(mdev->irq_info.mic_msi_map); + kfree(mdev->irq_info.msix_entries); + pci_disable_msix(pdev); + } else { + if (pci_dev_msi_enabled(pdev)) { + free_irq(pdev->irq, mdev); + kfree(mdev->irq_info.mic_msi_map); + pci_disable_msi(pdev); + } else { + free_irq(pdev->irq, mdev); + } + mic_release_callbacks(mdev); + } +} + +/** + * mic_intr_restore - Restore MIC interrupt registers. + * + * @mdev: pointer to mic_device instance. + * + * Restore the interrupt registers to values previously + * stored in the SW data structures. mic_mutex needs to + * be held before calling this function. + * + * returns None. + */ +void mic_intr_restore(struct mic_device *mdev) +{ + int entry, offset; + struct pci_dev *pdev = container_of(mdev->sdev->parent, + struct pci_dev, dev); + + if (!pci_dev_msi_enabled(pdev)) + return; + + for (entry = 0; entry < mdev->irq_info.num_vectors; entry++) { + for (offset = 0; offset < MIC_NUM_OFFSETS; offset++) { + if (mdev->irq_info.mic_msi_map[entry] & BIT(offset)) + mdev->intr_ops->program_msi_to_src_map(mdev, + entry, offset, true); + } + } +} diff --git a/drivers/misc/mic/host/mic_intr.h b/drivers/misc/mic/host/mic_intr.h new file mode 100644 index 000000000000..6091aa97e116 --- /dev/null +++ b/drivers/misc/mic/host/mic_intr.h @@ -0,0 +1,137 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#ifndef _MIC_INTR_H_ +#define _MIC_INTR_H_ + +/* + * The minimum number of msix vectors required for normal operation. + * 3 for virtio network, console and block devices. + * 1 for card shutdown notifications. + */ +#define MIC_MIN_MSIX 4 +#define MIC_NUM_OFFSETS 32 + +/** + * mic_intr_source - The type of source that will generate + * the interrupt.The number of types needs to be in sync with + * MIC_NUM_INTR_TYPES + * + * MIC_INTR_DB: The source is a doorbell + * MIC_INTR_DMA: The source is a DMA channel + * MIC_INTR_ERR: The source is an error interrupt e.g. SBOX ERR + * MIC_NUM_INTR_TYPES: Total number of interrupt sources. + */ +enum mic_intr_type { + MIC_INTR_DB = 0, + MIC_INTR_DMA, + MIC_INTR_ERR, + MIC_NUM_INTR_TYPES +}; + +/** + * struct mic_intr_info - Contains h/w specific interrupt sources + * information. + * + * @intr_start_idx: Contains the starting indexes of the + * interrupt types. + * @intr_len: Contains the length of the interrupt types. + */ +struct mic_intr_info { + u16 intr_start_idx[MIC_NUM_INTR_TYPES]; + u16 intr_len[MIC_NUM_INTR_TYPES]; +}; + +/** + * struct mic_irq_info - OS specific irq information + * + * @next_avail_src: next available doorbell that can be assigned. + * @msix_entries: msix entries allocated while setting up MSI-x + * @mic_msi_map: The MSI/MSI-x mapping information. + * @num_vectors: The number of MSI/MSI-x vectors that have been allocated. + * @cb_ida: callback ID allocator to track the callbacks registered. + * @mic_intr_lock: spinlock to protect the interrupt callback list. + * @cb_list: Array of callback lists one for each source. + */ +struct mic_irq_info { + int next_avail_src; + struct msix_entry *msix_entries; + u32 *mic_msi_map; + u16 num_vectors; + struct ida cb_ida; + spinlock_t mic_intr_lock; + struct list_head *cb_list; +}; + +/** + * struct mic_intr_cb - Interrupt callback structure. + * + * @func: The callback function + * @data: Private data of the requester. + * @cb_id: The callback id. Identifies this callback. + * @list: list head pointing to the next callback structure. + */ +struct mic_intr_cb { + irqreturn_t (*func) (int irq, void *data); + void *data; + int cb_id; + struct list_head list; +}; + +/** + * struct mic_irq - opaque pointer used as cookie + */ +struct mic_irq; + +/* Forward declaration */ +struct mic_device; + +/** + * struct mic_hw_intr_ops: MIC HW specific interrupt operations + * @intr_init: Initialize H/W specific interrupt information. + * @enable_interrupts: Enable interrupts from the hardware. + * @disable_interrupts: Disable interrupts from the hardware. + * @program_msi_to_src_map: Update MSI mapping registers with + * irq information. + * @read_msi_to_src_map: Read MSI mapping registers containing + * irq information. + */ +struct mic_hw_intr_ops { + void (*intr_init)(struct mic_device *mdev); + void (*enable_interrupts)(struct mic_device *mdev); + void (*disable_interrupts)(struct mic_device *mdev); + void (*program_msi_to_src_map) (struct mic_device *mdev, + int idx, int intr_src, bool set); + u32 (*read_msi_to_src_map) (struct mic_device *mdev, + int idx); +}; + +int mic_next_db(struct mic_device *mdev); +struct mic_irq *mic_request_irq(struct mic_device *mdev, + irqreturn_t (*func)(int irq, void *data), + const char *name, void *data, int intr_src, + enum mic_intr_type type); + +void mic_free_irq(struct mic_device *mdev, + struct mic_irq *cookie, void *data); +int mic_setup_interrupts(struct mic_device *mdev, struct pci_dev *pdev); +void mic_free_interrupts(struct mic_device *mdev, struct pci_dev *pdev); +void mic_intr_restore(struct mic_device *mdev); +#endif diff --git a/drivers/misc/mic/host/mic_main.c b/drivers/misc/mic/host/mic_main.c new file mode 100644 index 000000000000..ad838c7651c4 --- /dev/null +++ b/drivers/misc/mic/host/mic_main.c @@ -0,0 +1,536 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + * Global TODO's across the driver to be added after initial base + * patches are accepted upstream: + * 1) Enable DMA support. + * 2) Enable per vring interrupt support. + */ +#include <linux/fs.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/poll.h> +#include <linux/suspend.h> + +#include <linux/mic_common.h> +#include "../common/mic_dev.h" +#include "mic_device.h" +#include "mic_x100.h" +#include "mic_smpt.h" +#include "mic_fops.h" +#include "mic_virtio.h" + +static const char mic_driver_name[] = "mic"; + +static DEFINE_PCI_DEVICE_TABLE(mic_pci_tbl) = { + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2250)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2251)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2252)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2253)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2254)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2255)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2256)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2257)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2258)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2259)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225a)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225b)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225c)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225d)}, + {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225e)}, + + /* required last entry */ + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, mic_pci_tbl); + +/* ID allocator for MIC devices */ +static struct ida g_mic_ida; +/* Class of MIC devices for sysfs accessibility. */ +static struct class *g_mic_class; +/* Base device node number for MIC devices */ +static dev_t g_mic_devno; + +static const struct file_operations mic_fops = { + .open = mic_open, + .release = mic_release, + .unlocked_ioctl = mic_ioctl, + .poll = mic_poll, + .mmap = mic_mmap, + .owner = THIS_MODULE, +}; + +/* Initialize the device page */ +static int mic_dp_init(struct mic_device *mdev) +{ + mdev->dp = kzalloc(MIC_DP_SIZE, GFP_KERNEL); + if (!mdev->dp) { + dev_err(mdev->sdev->parent, "%s %d err %d\n", + __func__, __LINE__, -ENOMEM); + return -ENOMEM; + } + + mdev->dp_dma_addr = mic_map_single(mdev, + mdev->dp, MIC_DP_SIZE); + if (mic_map_error(mdev->dp_dma_addr)) { + kfree(mdev->dp); + dev_err(mdev->sdev->parent, "%s %d err %d\n", + __func__, __LINE__, -ENOMEM); + return -ENOMEM; + } + mdev->ops->write_spad(mdev, MIC_DPLO_SPAD, mdev->dp_dma_addr); + mdev->ops->write_spad(mdev, MIC_DPHI_SPAD, mdev->dp_dma_addr >> 32); + return 0; +} + +/* Uninitialize the device page */ +static void mic_dp_uninit(struct mic_device *mdev) +{ + mic_unmap_single(mdev, mdev->dp_dma_addr, MIC_DP_SIZE); + kfree(mdev->dp); +} + +/** + * mic_shutdown_db - Shutdown doorbell interrupt handler. + */ +static irqreturn_t mic_shutdown_db(int irq, void *data) +{ + struct mic_device *mdev = data; + struct mic_bootparam *bootparam = mdev->dp; + + mdev->ops->ack_interrupt(mdev); + + switch (bootparam->shutdown_status) { + case MIC_HALTED: + case MIC_POWER_OFF: + case MIC_RESTART: + /* Fall through */ + case MIC_CRASHED: + schedule_work(&mdev->shutdown_work); + break; + default: + break; + }; + return IRQ_HANDLED; +} + +/** + * mic_ops_init: Initialize HW specific operation tables. + * + * @mdev: pointer to mic_device instance + * + * returns none. + */ +static void mic_ops_init(struct mic_device *mdev) +{ + switch (mdev->family) { + case MIC_FAMILY_X100: + mdev->ops = &mic_x100_ops; + mdev->intr_ops = &mic_x100_intr_ops; + mdev->smpt_ops = &mic_x100_smpt_ops; + break; + default: + break; + } +} + +/** + * mic_get_family - Determine hardware family to which this MIC belongs. + * + * @pdev: The pci device structure + * + * returns family. + */ +static enum mic_hw_family mic_get_family(struct pci_dev *pdev) +{ + enum mic_hw_family family; + + switch (pdev->device) { + case MIC_X100_PCI_DEVICE_2250: + case MIC_X100_PCI_DEVICE_2251: + case MIC_X100_PCI_DEVICE_2252: + case MIC_X100_PCI_DEVICE_2253: + case MIC_X100_PCI_DEVICE_2254: + case MIC_X100_PCI_DEVICE_2255: + case MIC_X100_PCI_DEVICE_2256: + case MIC_X100_PCI_DEVICE_2257: + case MIC_X100_PCI_DEVICE_2258: + case MIC_X100_PCI_DEVICE_2259: + case MIC_X100_PCI_DEVICE_225a: + case MIC_X100_PCI_DEVICE_225b: + case MIC_X100_PCI_DEVICE_225c: + case MIC_X100_PCI_DEVICE_225d: + case MIC_X100_PCI_DEVICE_225e: + family = MIC_FAMILY_X100; + break; + default: + family = MIC_FAMILY_UNKNOWN; + break; + } + return family; +} + +/** +* mic_pm_notifier: Notifier callback function that handles +* PM notifications. +* +* @notifier_block: The notifier structure. +* @pm_event: The event for which the driver was notified. +* @unused: Meaningless. Always NULL. +* +* returns NOTIFY_DONE +*/ +static int mic_pm_notifier(struct notifier_block *notifier, + unsigned long pm_event, void *unused) +{ + struct mic_device *mdev = container_of(notifier, + struct mic_device, pm_notifier); + + switch (pm_event) { + case PM_HIBERNATION_PREPARE: + /* Fall through */ + case PM_SUSPEND_PREPARE: + mic_prepare_suspend(mdev); + break; + case PM_POST_HIBERNATION: + /* Fall through */ + case PM_POST_SUSPEND: + /* Fall through */ + case PM_POST_RESTORE: + mic_complete_resume(mdev); + break; + case PM_RESTORE_PREPARE: + break; + default: + break; + } + return NOTIFY_DONE; +} + +/** + * mic_device_init - Allocates and initializes the MIC device structure + * + * @mdev: pointer to mic_device instance + * @pdev: The pci device structure + * + * returns none. + */ +static int +mic_device_init(struct mic_device *mdev, struct pci_dev *pdev) +{ + int rc; + + mdev->family = mic_get_family(pdev); + mdev->stepping = pdev->revision; + mic_ops_init(mdev); + mic_sysfs_init(mdev); + mutex_init(&mdev->mic_mutex); + mdev->irq_info.next_avail_src = 0; + INIT_WORK(&mdev->reset_trigger_work, mic_reset_trigger_work); + INIT_WORK(&mdev->shutdown_work, mic_shutdown_work); + init_completion(&mdev->reset_wait); + INIT_LIST_HEAD(&mdev->vdev_list); + mdev->pm_notifier.notifier_call = mic_pm_notifier; + rc = register_pm_notifier(&mdev->pm_notifier); + if (rc) { + dev_err(&pdev->dev, "register_pm_notifier failed rc %d\n", + rc); + goto register_pm_notifier_fail; + } + return 0; +register_pm_notifier_fail: + flush_work(&mdev->shutdown_work); + flush_work(&mdev->reset_trigger_work); + return rc; +} + +/** + * mic_device_uninit - Frees resources allocated during mic_device_init(..) + * + * @mdev: pointer to mic_device instance + * + * returns none + */ +static void mic_device_uninit(struct mic_device *mdev) +{ + /* The cmdline sysfs entry might have allocated cmdline */ + kfree(mdev->cmdline); + kfree(mdev->firmware); + kfree(mdev->ramdisk); + kfree(mdev->bootmode); + flush_work(&mdev->reset_trigger_work); + flush_work(&mdev->shutdown_work); + unregister_pm_notifier(&mdev->pm_notifier); +} + +/** + * mic_probe - Device Initialization Routine + * + * @pdev: PCI device structure + * @ent: entry in mic_pci_tbl + * + * returns 0 on success, < 0 on failure. + */ +static int mic_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + int rc; + struct mic_device *mdev; + + mdev = kzalloc(sizeof(*mdev), GFP_KERNEL); + if (!mdev) { + rc = -ENOMEM; + dev_err(&pdev->dev, "mdev kmalloc failed rc %d\n", rc); + goto mdev_alloc_fail; + } + mdev->id = ida_simple_get(&g_mic_ida, 0, MIC_MAX_NUM_DEVS, GFP_KERNEL); + if (mdev->id < 0) { + rc = mdev->id; + dev_err(&pdev->dev, "ida_simple_get failed rc %d\n", rc); + goto ida_fail; + } + + rc = mic_device_init(mdev, pdev); + if (rc) { + dev_err(&pdev->dev, "mic_device_init failed rc %d\n", rc); + goto device_init_fail; + } + + rc = pci_enable_device(pdev); + if (rc) { + dev_err(&pdev->dev, "failed to enable pci device.\n"); + goto uninit_device; + } + + pci_set_master(pdev); + + rc = pci_request_regions(pdev, mic_driver_name); + if (rc) { + dev_err(&pdev->dev, "failed to get pci regions.\n"); + goto disable_device; + } + + rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); + if (rc) { + dev_err(&pdev->dev, "Cannot set DMA mask\n"); + goto release_regions; + } + + mdev->mmio.pa = pci_resource_start(pdev, mdev->ops->mmio_bar); + mdev->mmio.len = pci_resource_len(pdev, mdev->ops->mmio_bar); + mdev->mmio.va = pci_ioremap_bar(pdev, mdev->ops->mmio_bar); + if (!mdev->mmio.va) { + dev_err(&pdev->dev, "Cannot remap MMIO BAR\n"); + rc = -EIO; + goto release_regions; + } + + mdev->aper.pa = pci_resource_start(pdev, mdev->ops->aper_bar); + mdev->aper.len = pci_resource_len(pdev, mdev->ops->aper_bar); + mdev->aper.va = ioremap_wc(mdev->aper.pa, mdev->aper.len); + if (!mdev->aper.va) { + dev_err(&pdev->dev, "Cannot remap Aperture BAR\n"); + rc = -EIO; + goto unmap_mmio; + } + + mdev->intr_ops->intr_init(mdev); + rc = mic_setup_interrupts(mdev, pdev); + if (rc) { + dev_err(&pdev->dev, "mic_setup_interrupts failed %d\n", rc); + goto unmap_aper; + } + rc = mic_smpt_init(mdev); + if (rc) { + dev_err(&pdev->dev, "smpt_init failed %d\n", rc); + goto free_interrupts; + } + + pci_set_drvdata(pdev, mdev); + + mdev->sdev = device_create_with_groups(g_mic_class, &pdev->dev, + MKDEV(MAJOR(g_mic_devno), mdev->id), NULL, + mdev->attr_group, "mic%d", mdev->id); + if (IS_ERR(mdev->sdev)) { + rc = PTR_ERR(mdev->sdev); + dev_err(&pdev->dev, + "device_create_with_groups failed rc %d\n", rc); + goto smpt_uninit; + } + mdev->state_sysfs = sysfs_get_dirent(mdev->sdev->kobj.sd, "state"); + if (!mdev->state_sysfs) { + rc = -ENODEV; + dev_err(&pdev->dev, "sysfs_get_dirent failed rc %d\n", rc); + goto destroy_device; + } + + rc = mic_dp_init(mdev); + if (rc) { + dev_err(&pdev->dev, "mic_dp_init failed rc %d\n", rc); + goto sysfs_put; + } + mutex_lock(&mdev->mic_mutex); + + mdev->shutdown_db = mic_next_db(mdev); + mdev->shutdown_cookie = mic_request_irq(mdev, mic_shutdown_db, + "shutdown-interrupt", mdev, mdev->shutdown_db, MIC_INTR_DB); + if (IS_ERR(mdev->shutdown_cookie)) { + rc = PTR_ERR(mdev->shutdown_cookie); + mutex_unlock(&mdev->mic_mutex); + goto dp_uninit; + } + mutex_unlock(&mdev->mic_mutex); + mic_bootparam_init(mdev); + + mic_create_debug_dir(mdev); + cdev_init(&mdev->cdev, &mic_fops); + mdev->cdev.owner = THIS_MODULE; + rc = cdev_add(&mdev->cdev, MKDEV(MAJOR(g_mic_devno), mdev->id), 1); + if (rc) { + dev_err(&pdev->dev, "cdev_add err id %d rc %d\n", mdev->id, rc); + goto cleanup_debug_dir; + } + return 0; +cleanup_debug_dir: + mic_delete_debug_dir(mdev); + mutex_lock(&mdev->mic_mutex); + mic_free_irq(mdev, mdev->shutdown_cookie, mdev); + mutex_unlock(&mdev->mic_mutex); +dp_uninit: + mic_dp_uninit(mdev); +sysfs_put: + sysfs_put(mdev->state_sysfs); +destroy_device: + device_destroy(g_mic_class, MKDEV(MAJOR(g_mic_devno), mdev->id)); +smpt_uninit: + mic_smpt_uninit(mdev); +free_interrupts: + mic_free_interrupts(mdev, pdev); +unmap_aper: + iounmap(mdev->aper.va); +unmap_mmio: + iounmap(mdev->mmio.va); +release_regions: + pci_release_regions(pdev); +disable_device: + pci_disable_device(pdev); +uninit_device: + mic_device_uninit(mdev); +device_init_fail: + ida_simple_remove(&g_mic_ida, mdev->id); +ida_fail: + kfree(mdev); +mdev_alloc_fail: + dev_err(&pdev->dev, "Probe failed rc %d\n", rc); + return rc; +} + +/** + * mic_remove - Device Removal Routine + * mic_remove is called by the PCI subsystem to alert the driver + * that it should release a PCI device. + * + * @pdev: PCI device structure + */ +static void mic_remove(struct pci_dev *pdev) +{ + struct mic_device *mdev; + + mdev = pci_get_drvdata(pdev); + if (!mdev) + return; + + mic_stop(mdev, false); + cdev_del(&mdev->cdev); + mic_delete_debug_dir(mdev); + mutex_lock(&mdev->mic_mutex); + mic_free_irq(mdev, mdev->shutdown_cookie, mdev); + mutex_unlock(&mdev->mic_mutex); + flush_work(&mdev->shutdown_work); + mic_dp_uninit(mdev); + sysfs_put(mdev->state_sysfs); + device_destroy(g_mic_class, MKDEV(MAJOR(g_mic_devno), mdev->id)); + mic_smpt_uninit(mdev); + mic_free_interrupts(mdev, pdev); + iounmap(mdev->mmio.va); + iounmap(mdev->aper.va); + mic_device_uninit(mdev); + pci_release_regions(pdev); + pci_disable_device(pdev); + ida_simple_remove(&g_mic_ida, mdev->id); + kfree(mdev); +} +static struct pci_driver mic_driver = { + .name = mic_driver_name, + .id_table = mic_pci_tbl, + .probe = mic_probe, + .remove = mic_remove +}; + +static int __init mic_init(void) +{ + int ret; + + ret = alloc_chrdev_region(&g_mic_devno, 0, + MIC_MAX_NUM_DEVS, mic_driver_name); + if (ret) { + pr_err("alloc_chrdev_region failed ret %d\n", ret); + goto error; + } + + g_mic_class = class_create(THIS_MODULE, mic_driver_name); + if (IS_ERR(g_mic_class)) { + ret = PTR_ERR(g_mic_class); + pr_err("class_create failed ret %d\n", ret); + goto cleanup_chrdev; + } + + mic_init_debugfs(); + ida_init(&g_mic_ida); + ret = pci_register_driver(&mic_driver); + if (ret) { + pr_err("pci_register_driver failed ret %d\n", ret); + goto cleanup_debugfs; + } + return ret; +cleanup_debugfs: + mic_exit_debugfs(); + class_destroy(g_mic_class); +cleanup_chrdev: + unregister_chrdev_region(g_mic_devno, MIC_MAX_NUM_DEVS); +error: + return ret; +} + +static void __exit mic_exit(void) +{ + pci_unregister_driver(&mic_driver); + ida_destroy(&g_mic_ida); + mic_exit_debugfs(); + class_destroy(g_mic_class); + unregister_chrdev_region(g_mic_devno, MIC_MAX_NUM_DEVS); +} + +module_init(mic_init); +module_exit(mic_exit); + +MODULE_AUTHOR("Intel Corporation"); +MODULE_DESCRIPTION("Intel(R) MIC X100 Host driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/misc/mic/host/mic_smpt.c b/drivers/misc/mic/host/mic_smpt.c new file mode 100644 index 000000000000..fae474c4899e --- /dev/null +++ b/drivers/misc/mic/host/mic_smpt.c @@ -0,0 +1,442 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#include <linux/pci.h> + +#include "../common/mic_dev.h" +#include "mic_device.h" +#include "mic_smpt.h" + +static inline u64 mic_system_page_mask(struct mic_device *mdev) +{ + return (1ULL << mdev->smpt->info.page_shift) - 1ULL; +} + +static inline u8 mic_sys_addr_to_smpt(struct mic_device *mdev, dma_addr_t pa) +{ + return (pa - mdev->smpt->info.base) >> mdev->smpt->info.page_shift; +} + +static inline u64 mic_smpt_to_pa(struct mic_device *mdev, u8 index) +{ + return mdev->smpt->info.base + (index * mdev->smpt->info.page_size); +} + +static inline u64 mic_smpt_offset(struct mic_device *mdev, dma_addr_t pa) +{ + return pa & mic_system_page_mask(mdev); +} + +static inline u64 mic_smpt_align_low(struct mic_device *mdev, dma_addr_t pa) +{ + return ALIGN(pa - mic_system_page_mask(mdev), + mdev->smpt->info.page_size); +} + +static inline u64 mic_smpt_align_high(struct mic_device *mdev, dma_addr_t pa) +{ + return ALIGN(pa, mdev->smpt->info.page_size); +} + +/* Total Cumulative system memory accessible by MIC across all SMPT entries */ +static inline u64 mic_max_system_memory(struct mic_device *mdev) +{ + return mdev->smpt->info.num_reg * mdev->smpt->info.page_size; +} + +/* Maximum system memory address accessible by MIC */ +static inline u64 mic_max_system_addr(struct mic_device *mdev) +{ + return mdev->smpt->info.base + mic_max_system_memory(mdev) - 1ULL; +} + +/* Check if the DMA address is a MIC system memory address */ +static inline bool +mic_is_system_addr(struct mic_device *mdev, dma_addr_t pa) +{ + return pa >= mdev->smpt->info.base && pa <= mic_max_system_addr(mdev); +} + +/* Populate an SMPT entry and update the reference counts. */ +static void mic_add_smpt_entry(int spt, s64 *ref, u64 addr, + int entries, struct mic_device *mdev) +{ + struct mic_smpt_info *smpt_info = mdev->smpt; + int i; + + for (i = spt; i < spt + entries; i++, + addr += smpt_info->info.page_size) { + if (!smpt_info->entry[i].ref_count && + (smpt_info->entry[i].dma_addr != addr)) { + mdev->smpt_ops->set(mdev, addr, i); + smpt_info->entry[i].dma_addr = addr; + } + smpt_info->entry[i].ref_count += ref[i - spt]; + } +} + +/* + * Find an available MIC address in MIC SMPT address space + * for a given DMA address and size. + */ +static dma_addr_t mic_smpt_op(struct mic_device *mdev, u64 dma_addr, + int entries, s64 *ref, size_t size) +{ + int spt; + int ae = 0; + int i; + unsigned long flags; + dma_addr_t mic_addr = 0; + dma_addr_t addr = dma_addr; + struct mic_smpt_info *smpt_info = mdev->smpt; + + spin_lock_irqsave(&smpt_info->smpt_lock, flags); + + /* find existing entries */ + for (i = 0; i < smpt_info->info.num_reg; i++) { + if (smpt_info->entry[i].dma_addr == addr) { + ae++; + addr += smpt_info->info.page_size; + } else if (ae) /* cannot find contiguous entries */ + goto not_found; + + if (ae == entries) + goto found; + } + + /* find free entry */ + for (ae = 0, i = 0; i < smpt_info->info.num_reg; i++) { + ae = (smpt_info->entry[i].ref_count == 0) ? ae + 1 : 0; + if (ae == entries) + goto found; + } + +not_found: + spin_unlock_irqrestore(&smpt_info->smpt_lock, flags); + return mic_addr; + +found: + spt = i - entries + 1; + mic_addr = mic_smpt_to_pa(mdev, spt); + mic_add_smpt_entry(spt, ref, dma_addr, entries, mdev); + smpt_info->map_count++; + smpt_info->ref_count += (s64)size; + spin_unlock_irqrestore(&smpt_info->smpt_lock, flags); + return mic_addr; +} + +/* + * Returns number of smpt entries needed for dma_addr to dma_addr + size + * also returns the reference count array for each of those entries + * and the starting smpt address + */ +static int mic_get_smpt_ref_count(struct mic_device *mdev, dma_addr_t dma_addr, + size_t size, s64 *ref, u64 *smpt_start) +{ + u64 start = dma_addr; + u64 end = dma_addr + size; + int i = 0; + + while (start < end) { + ref[i++] = min(mic_smpt_align_high(mdev, start + 1), + end) - start; + start = mic_smpt_align_high(mdev, start + 1); + } + + if (smpt_start) + *smpt_start = mic_smpt_align_low(mdev, dma_addr); + + return i; +} + +/* + * mic_to_dma_addr - Converts a MIC address to a DMA address. + * + * @mdev: pointer to mic_device instance. + * @mic_addr: MIC address. + * + * returns a DMA address. + */ +static dma_addr_t +mic_to_dma_addr(struct mic_device *mdev, dma_addr_t mic_addr) +{ + struct mic_smpt_info *smpt_info = mdev->smpt; + int spt; + dma_addr_t dma_addr; + + if (!mic_is_system_addr(mdev, mic_addr)) { + dev_err(mdev->sdev->parent, + "mic_addr is invalid. mic_addr = 0x%llx\n", mic_addr); + return -EINVAL; + } + spt = mic_sys_addr_to_smpt(mdev, mic_addr); + dma_addr = smpt_info->entry[spt].dma_addr + + mic_smpt_offset(mdev, mic_addr); + return dma_addr; +} + +/** + * mic_map - Maps a DMA address to a MIC physical address. + * + * @mdev: pointer to mic_device instance. + * @dma_addr: DMA address. + * @size: Size of the region to be mapped. + * + * This API converts the DMA address provided to a DMA address understood + * by MIC. Caller should check for errors by calling mic_map_error(..). + * + * returns DMA address as required by MIC. + */ +dma_addr_t mic_map(struct mic_device *mdev, dma_addr_t dma_addr, size_t size) +{ + dma_addr_t mic_addr = 0; + int num_entries; + s64 *ref; + u64 smpt_start; + + if (!size || size > mic_max_system_memory(mdev)) + return mic_addr; + + ref = kmalloc(mdev->smpt->info.num_reg * sizeof(s64), GFP_KERNEL); + if (!ref) + return mic_addr; + + num_entries = mic_get_smpt_ref_count(mdev, dma_addr, size, + ref, &smpt_start); + + /* Set the smpt table appropriately and get 16G aligned mic address */ + mic_addr = mic_smpt_op(mdev, smpt_start, num_entries, ref, size); + + kfree(ref); + + /* + * If mic_addr is zero then its an error case + * since mic_addr can never be zero. + * else generate mic_addr by adding the 16G offset in dma_addr + */ + if (!mic_addr && MIC_FAMILY_X100 == mdev->family) { + dev_err(mdev->sdev->parent, + "mic_map failed dma_addr 0x%llx size 0x%lx\n", + dma_addr, size); + return mic_addr; + } else { + return mic_addr + mic_smpt_offset(mdev, dma_addr); + } +} + +/** + * mic_unmap - Unmaps a MIC physical address. + * + * @mdev: pointer to mic_device instance. + * @mic_addr: MIC physical address. + * @size: Size of the region to be unmapped. + * + * This API unmaps the mappings created by mic_map(..). + * + * returns None. + */ +void mic_unmap(struct mic_device *mdev, dma_addr_t mic_addr, size_t size) +{ + struct mic_smpt_info *smpt_info = mdev->smpt; + s64 *ref; + int num_smpt; + int spt; + int i; + unsigned long flags; + + if (!size) + return; + + if (!mic_is_system_addr(mdev, mic_addr)) { + dev_err(mdev->sdev->parent, + "invalid address: 0x%llx\n", mic_addr); + return; + } + + spt = mic_sys_addr_to_smpt(mdev, mic_addr); + ref = kmalloc(mdev->smpt->info.num_reg * sizeof(s64), GFP_KERNEL); + if (!ref) + return; + + /* Get number of smpt entries to be mapped, ref count array */ + num_smpt = mic_get_smpt_ref_count(mdev, mic_addr, size, ref, NULL); + + spin_lock_irqsave(&smpt_info->smpt_lock, flags); + smpt_info->unmap_count++; + smpt_info->ref_count -= (s64)size; + + for (i = spt; i < spt + num_smpt; i++) { + smpt_info->entry[i].ref_count -= ref[i - spt]; + if (smpt_info->entry[i].ref_count < 0) + dev_warn(mdev->sdev->parent, + "ref count for entry %d is negative\n", i); + } + spin_unlock_irqrestore(&smpt_info->smpt_lock, flags); + kfree(ref); +} + +/** + * mic_map_single - Maps a virtual address to a MIC physical address. + * + * @mdev: pointer to mic_device instance. + * @va: Kernel direct mapped virtual address. + * @size: Size of the region to be mapped. + * + * This API calls pci_map_single(..) for the direct mapped virtual address + * and then converts the DMA address provided to a DMA address understood + * by MIC. Caller should check for errors by calling mic_map_error(..). + * + * returns DMA address as required by MIC. + */ +dma_addr_t mic_map_single(struct mic_device *mdev, void *va, size_t size) +{ + dma_addr_t mic_addr = 0; + struct pci_dev *pdev = container_of(mdev->sdev->parent, + struct pci_dev, dev); + dma_addr_t dma_addr = + pci_map_single(pdev, va, size, PCI_DMA_BIDIRECTIONAL); + + if (!pci_dma_mapping_error(pdev, dma_addr)) { + mic_addr = mic_map(mdev, dma_addr, size); + if (!mic_addr) { + dev_err(mdev->sdev->parent, + "mic_map failed dma_addr 0x%llx size 0x%lx\n", + dma_addr, size); + pci_unmap_single(pdev, dma_addr, + size, PCI_DMA_BIDIRECTIONAL); + } + } + return mic_addr; +} + +/** + * mic_unmap_single - Unmaps a MIC physical address. + * + * @mdev: pointer to mic_device instance. + * @mic_addr: MIC physical address. + * @size: Size of the region to be unmapped. + * + * This API unmaps the mappings created by mic_map_single(..). + * + * returns None. + */ +void +mic_unmap_single(struct mic_device *mdev, dma_addr_t mic_addr, size_t size) +{ + struct pci_dev *pdev = container_of(mdev->sdev->parent, + struct pci_dev, dev); + dma_addr_t dma_addr = mic_to_dma_addr(mdev, mic_addr); + mic_unmap(mdev, mic_addr, size); + pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL); +} + +/** + * mic_smpt_init - Initialize MIC System Memory Page Tables. + * + * @mdev: pointer to mic_device instance. + * + * returns 0 for success and -errno for error. + */ +int mic_smpt_init(struct mic_device *mdev) +{ + int i, err = 0; + dma_addr_t dma_addr; + struct mic_smpt_info *smpt_info; + + mdev->smpt = kmalloc(sizeof(*mdev->smpt), GFP_KERNEL); + if (!mdev->smpt) + return -ENOMEM; + + smpt_info = mdev->smpt; + mdev->smpt_ops->init(mdev); + smpt_info->entry = kmalloc_array(smpt_info->info.num_reg, + sizeof(*smpt_info->entry), GFP_KERNEL); + if (!smpt_info->entry) { + err = -ENOMEM; + goto free_smpt; + } + spin_lock_init(&smpt_info->smpt_lock); + for (i = 0; i < smpt_info->info.num_reg; i++) { + dma_addr = i * smpt_info->info.page_size; + smpt_info->entry[i].dma_addr = dma_addr; + smpt_info->entry[i].ref_count = 0; + mdev->smpt_ops->set(mdev, dma_addr, i); + } + smpt_info->ref_count = 0; + smpt_info->map_count = 0; + smpt_info->unmap_count = 0; + return 0; +free_smpt: + kfree(smpt_info); + return err; +} + +/** + * mic_smpt_uninit - UnInitialize MIC System Memory Page Tables. + * + * @mdev: pointer to mic_device instance. + * + * returns None. + */ +void mic_smpt_uninit(struct mic_device *mdev) +{ + struct mic_smpt_info *smpt_info = mdev->smpt; + int i; + + dev_dbg(mdev->sdev->parent, + "nodeid %d SMPT ref count %lld map %lld unmap %lld\n", + mdev->id, smpt_info->ref_count, + smpt_info->map_count, smpt_info->unmap_count); + + for (i = 0; i < smpt_info->info.num_reg; i++) { + dev_dbg(mdev->sdev->parent, + "SMPT entry[%d] dma_addr = 0x%llx ref_count = %lld\n", + i, smpt_info->entry[i].dma_addr, + smpt_info->entry[i].ref_count); + if (smpt_info->entry[i].ref_count) + dev_warn(mdev->sdev->parent, + "ref count for entry %d is not zero\n", i); + } + kfree(smpt_info->entry); + kfree(smpt_info); +} + +/** + * mic_smpt_restore - Restore MIC System Memory Page Tables. + * + * @mdev: pointer to mic_device instance. + * + * Restore the SMPT registers to values previously stored in the + * SW data structures. Some MIC steppings lose register state + * across resets and this API should be called for performing + * a restore operation if required. + * + * returns None. + */ +void mic_smpt_restore(struct mic_device *mdev) +{ + int i; + dma_addr_t dma_addr; + + for (i = 0; i < mdev->smpt->info.num_reg; i++) { + dma_addr = mdev->smpt->entry[i].dma_addr; + mdev->smpt_ops->set(mdev, dma_addr, i); + } +} diff --git a/drivers/misc/mic/host/mic_smpt.h b/drivers/misc/mic/host/mic_smpt.h new file mode 100644 index 000000000000..51970abfe7df --- /dev/null +++ b/drivers/misc/mic/host/mic_smpt.h @@ -0,0 +1,98 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#ifndef MIC_SMPT_H +#define MIC_SMPT_H +/** + * struct mic_smpt_ops - MIC HW specific SMPT operations. + * @init: Initialize hardware specific SMPT information in mic_smpt_hw_info. + * @set: Set the value for a particular SMPT entry. + */ +struct mic_smpt_ops { + void (*init)(struct mic_device *mdev); + void (*set)(struct mic_device *mdev, dma_addr_t dma_addr, u8 index); +}; + +/** + * struct mic_smpt - MIC SMPT entry information. + * @dma_addr: Base DMA address for this SMPT entry. + * @ref_count: Number of active mappings for this SMPT entry in bytes. + */ +struct mic_smpt { + dma_addr_t dma_addr; + s64 ref_count; +}; + +/** + * struct mic_smpt_hw_info - MIC SMPT hardware specific information. + * @num_reg: Number of SMPT registers. + * @page_shift: System memory page shift. + * @page_size: System memory page size. + * @base: System address base. + */ +struct mic_smpt_hw_info { + u8 num_reg; + u8 page_shift; + u64 page_size; + u64 base; +}; + +/** + * struct mic_smpt_info - MIC SMPT information. + * @entry: Array of SMPT entries. + * @smpt_lock: Spin lock protecting access to SMPT data structures. + * @info: Hardware specific SMPT information. + * @ref_count: Number of active SMPT mappings (for debug). + * @map_count: Number of SMPT mappings created (for debug). + * @unmap_count: Number of SMPT mappings destroyed (for debug). + */ +struct mic_smpt_info { + struct mic_smpt *entry; + spinlock_t smpt_lock; + struct mic_smpt_hw_info info; + s64 ref_count; + s64 map_count; + s64 unmap_count; +}; + +dma_addr_t mic_map_single(struct mic_device *mdev, void *va, size_t size); +void mic_unmap_single(struct mic_device *mdev, + dma_addr_t mic_addr, size_t size); +dma_addr_t mic_map(struct mic_device *mdev, + dma_addr_t dma_addr, size_t size); +void mic_unmap(struct mic_device *mdev, dma_addr_t mic_addr, size_t size); + +/** + * mic_map_error - Check a MIC address for errors. + * + * @mdev: pointer to mic_device instance. + * + * returns Whether there was an error during mic_map..(..) APIs. + */ +static inline bool mic_map_error(dma_addr_t mic_addr) +{ + return !mic_addr; +} + +int mic_smpt_init(struct mic_device *mdev); +void mic_smpt_uninit(struct mic_device *mdev); +void mic_smpt_restore(struct mic_device *mdev); + +#endif diff --git a/drivers/misc/mic/host/mic_sysfs.c b/drivers/misc/mic/host/mic_sysfs.c new file mode 100644 index 000000000000..6dd864e4a617 --- /dev/null +++ b/drivers/misc/mic/host/mic_sysfs.c @@ -0,0 +1,459 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#include <linux/pci.h> + +#include <linux/mic_common.h> +#include "../common/mic_dev.h" +#include "mic_device.h" + +/* + * A state-to-string lookup table, for exposing a human readable state + * via sysfs. Always keep in sync with enum mic_states + */ +static const char * const mic_state_string[] = { + [MIC_OFFLINE] = "offline", + [MIC_ONLINE] = "online", + [MIC_SHUTTING_DOWN] = "shutting_down", + [MIC_RESET_FAILED] = "reset_failed", + [MIC_SUSPENDING] = "suspending", + [MIC_SUSPENDED] = "suspended", +}; + +/* + * A shutdown-status-to-string lookup table, for exposing a human + * readable state via sysfs. Always keep in sync with enum mic_shutdown_status + */ +static const char * const mic_shutdown_status_string[] = { + [MIC_NOP] = "nop", + [MIC_CRASHED] = "crashed", + [MIC_HALTED] = "halted", + [MIC_POWER_OFF] = "poweroff", + [MIC_RESTART] = "restart", +}; + +void mic_set_shutdown_status(struct mic_device *mdev, u8 shutdown_status) +{ + dev_dbg(mdev->sdev->parent, "Shutdown Status %s -> %s\n", + mic_shutdown_status_string[mdev->shutdown_status], + mic_shutdown_status_string[shutdown_status]); + mdev->shutdown_status = shutdown_status; +} + +void mic_set_state(struct mic_device *mdev, u8 state) +{ + dev_dbg(mdev->sdev->parent, "State %s -> %s\n", + mic_state_string[mdev->state], + mic_state_string[state]); + mdev->state = state; + sysfs_notify_dirent(mdev->state_sysfs); +} + +static ssize_t +family_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + static const char x100[] = "x100"; + static const char unknown[] = "Unknown"; + const char *card = NULL; + struct mic_device *mdev = dev_get_drvdata(dev->parent); + + if (!mdev) + return -EINVAL; + + switch (mdev->family) { + case MIC_FAMILY_X100: + card = x100; + break; + default: + card = unknown; + break; + } + return scnprintf(buf, PAGE_SIZE, "%s\n", card); +} +static DEVICE_ATTR_RO(family); + +static ssize_t +stepping_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + char *string = "??"; + + if (!mdev) + return -EINVAL; + + switch (mdev->stepping) { + case MIC_A0_STEP: + string = "A0"; + break; + case MIC_B0_STEP: + string = "B0"; + break; + case MIC_B1_STEP: + string = "B1"; + break; + case MIC_C0_STEP: + string = "C0"; + break; + default: + break; + } + return scnprintf(buf, PAGE_SIZE, "%s\n", string); +} +static DEVICE_ATTR_RO(stepping); + +static ssize_t +state_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + + if (!mdev || mdev->state >= MIC_LAST) + return -EINVAL; + + return scnprintf(buf, PAGE_SIZE, "%s\n", + mic_state_string[mdev->state]); +} + +static ssize_t +state_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + int rc = 0; + struct mic_device *mdev = dev_get_drvdata(dev->parent); + if (!mdev) + return -EINVAL; + if (sysfs_streq(buf, "boot")) { + rc = mic_start(mdev, buf); + if (rc) { + dev_err(mdev->sdev->parent, + "mic_boot failed rc %d\n", rc); + count = rc; + } + goto done; + } + + if (sysfs_streq(buf, "reset")) { + schedule_work(&mdev->reset_trigger_work); + goto done; + } + + if (sysfs_streq(buf, "shutdown")) { + mic_shutdown(mdev); + goto done; + } + + if (sysfs_streq(buf, "suspend")) { + mic_suspend(mdev); + goto done; + } + + count = -EINVAL; +done: + return count; +} +static DEVICE_ATTR_RW(state); + +static ssize_t shutdown_status_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + + if (!mdev || mdev->shutdown_status >= MIC_STATUS_LAST) + return -EINVAL; + + return scnprintf(buf, PAGE_SIZE, "%s\n", + mic_shutdown_status_string[mdev->shutdown_status]); +} +static DEVICE_ATTR_RO(shutdown_status); + +static ssize_t +cmdline_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + char *cmdline; + + if (!mdev) + return -EINVAL; + + cmdline = mdev->cmdline; + + if (cmdline) + return scnprintf(buf, PAGE_SIZE, "%s\n", cmdline); + return 0; +} + +static ssize_t +cmdline_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + + if (!mdev) + return -EINVAL; + + mutex_lock(&mdev->mic_mutex); + kfree(mdev->cmdline); + + mdev->cmdline = kmalloc(count + 1, GFP_KERNEL); + if (!mdev->cmdline) { + count = -ENOMEM; + goto unlock; + } + + strncpy(mdev->cmdline, buf, count); + + if (mdev->cmdline[count - 1] == '\n') + mdev->cmdline[count - 1] = '\0'; + else + mdev->cmdline[count] = '\0'; +unlock: + mutex_unlock(&mdev->mic_mutex); + return count; +} +static DEVICE_ATTR_RW(cmdline); + +static ssize_t +firmware_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + char *firmware; + + if (!mdev) + return -EINVAL; + + firmware = mdev->firmware; + + if (firmware) + return scnprintf(buf, PAGE_SIZE, "%s\n", firmware); + return 0; +} + +static ssize_t +firmware_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + + if (!mdev) + return -EINVAL; + + mutex_lock(&mdev->mic_mutex); + kfree(mdev->firmware); + + mdev->firmware = kmalloc(count + 1, GFP_KERNEL); + if (!mdev->firmware) { + count = -ENOMEM; + goto unlock; + } + strncpy(mdev->firmware, buf, count); + + if (mdev->firmware[count - 1] == '\n') + mdev->firmware[count - 1] = '\0'; + else + mdev->firmware[count] = '\0'; +unlock: + mutex_unlock(&mdev->mic_mutex); + return count; +} +static DEVICE_ATTR_RW(firmware); + +static ssize_t +ramdisk_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + char *ramdisk; + + if (!mdev) + return -EINVAL; + + ramdisk = mdev->ramdisk; + + if (ramdisk) + return scnprintf(buf, PAGE_SIZE, "%s\n", ramdisk); + return 0; +} + +static ssize_t +ramdisk_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + + if (!mdev) + return -EINVAL; + + mutex_lock(&mdev->mic_mutex); + kfree(mdev->ramdisk); + + mdev->ramdisk = kmalloc(count + 1, GFP_KERNEL); + if (!mdev->ramdisk) { + count = -ENOMEM; + goto unlock; + } + + strncpy(mdev->ramdisk, buf, count); + + if (mdev->ramdisk[count - 1] == '\n') + mdev->ramdisk[count - 1] = '\0'; + else + mdev->ramdisk[count] = '\0'; +unlock: + mutex_unlock(&mdev->mic_mutex); + return count; +} +static DEVICE_ATTR_RW(ramdisk); + +static ssize_t +bootmode_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + char *bootmode; + + if (!mdev) + return -EINVAL; + + bootmode = mdev->bootmode; + + if (bootmode) + return scnprintf(buf, PAGE_SIZE, "%s\n", bootmode); + return 0; +} + +static ssize_t +bootmode_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + + if (!mdev) + return -EINVAL; + + if (!sysfs_streq(buf, "linux") && !sysfs_streq(buf, "elf")) + return -EINVAL; + + mutex_lock(&mdev->mic_mutex); + kfree(mdev->bootmode); + + mdev->bootmode = kmalloc(count + 1, GFP_KERNEL); + if (!mdev->bootmode) { + count = -ENOMEM; + goto unlock; + } + + strncpy(mdev->bootmode, buf, count); + + if (mdev->bootmode[count - 1] == '\n') + mdev->bootmode[count - 1] = '\0'; + else + mdev->bootmode[count] = '\0'; +unlock: + mutex_unlock(&mdev->mic_mutex); + return count; +} +static DEVICE_ATTR_RW(bootmode); + +static ssize_t +log_buf_addr_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + + if (!mdev) + return -EINVAL; + + return scnprintf(buf, PAGE_SIZE, "%p\n", mdev->log_buf_addr); +} + +static ssize_t +log_buf_addr_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + int ret; + unsigned long addr; + + if (!mdev) + return -EINVAL; + + ret = kstrtoul(buf, 16, &addr); + if (ret) + goto exit; + + mdev->log_buf_addr = (void *)addr; + ret = count; +exit: + return ret; +} +static DEVICE_ATTR_RW(log_buf_addr); + +static ssize_t +log_buf_len_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + + if (!mdev) + return -EINVAL; + + return scnprintf(buf, PAGE_SIZE, "%p\n", mdev->log_buf_len); +} + +static ssize_t +log_buf_len_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct mic_device *mdev = dev_get_drvdata(dev->parent); + int ret; + unsigned long addr; + + if (!mdev) + return -EINVAL; + + ret = kstrtoul(buf, 16, &addr); + if (ret) + goto exit; + + mdev->log_buf_len = (int *)addr; + ret = count; +exit: + return ret; +} +static DEVICE_ATTR_RW(log_buf_len); + +static struct attribute *mic_default_attrs[] = { + &dev_attr_family.attr, + &dev_attr_stepping.attr, + &dev_attr_state.attr, + &dev_attr_shutdown_status.attr, + &dev_attr_cmdline.attr, + &dev_attr_firmware.attr, + &dev_attr_ramdisk.attr, + &dev_attr_bootmode.attr, + &dev_attr_log_buf_addr.attr, + &dev_attr_log_buf_len.attr, + + NULL +}; + +ATTRIBUTE_GROUPS(mic_default); + +void mic_sysfs_init(struct mic_device *mdev) +{ + mdev->attr_group = mic_default_groups; +} diff --git a/drivers/misc/mic/host/mic_virtio.c b/drivers/misc/mic/host/mic_virtio.c new file mode 100644 index 000000000000..5b8494bd1e00 --- /dev/null +++ b/drivers/misc/mic/host/mic_virtio.c @@ -0,0 +1,700 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#include <linux/pci.h> +#include <linux/sched.h> +#include <linux/uaccess.h> + +#include <linux/mic_common.h> +#include "../common/mic_dev.h" +#include "mic_device.h" +#include "mic_smpt.h" +#include "mic_virtio.h" + +/* + * Initiates the copies across the PCIe bus from card memory to + * a user space buffer. + */ +static int mic_virtio_copy_to_user(struct mic_vdev *mvdev, + void __user *ubuf, size_t len, u64 addr) +{ + int err; + void __iomem *dbuf = mvdev->mdev->aper.va + addr; + /* + * We are copying from IO below an should ideally use something + * like copy_to_user_fromio(..) if it existed. + */ + if (copy_to_user(ubuf, dbuf, len)) { + err = -EFAULT; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, err); + goto err; + } + mvdev->in_bytes += len; + err = 0; +err: + return err; +} + +/* + * Initiates copies across the PCIe bus from a user space + * buffer to card memory. + */ +static int mic_virtio_copy_from_user(struct mic_vdev *mvdev, + void __user *ubuf, size_t len, u64 addr) +{ + int err; + void __iomem *dbuf = mvdev->mdev->aper.va + addr; + /* + * We are copying to IO below and should ideally use something + * like copy_from_user_toio(..) if it existed. + */ + if (copy_from_user(dbuf, ubuf, len)) { + err = -EFAULT; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, err); + goto err; + } + mvdev->out_bytes += len; + err = 0; +err: + return err; +} + +#define MIC_VRINGH_READ true + +/* The function to call to notify the card about added buffers */ +static void mic_notify(struct vringh *vrh) +{ + struct mic_vringh *mvrh = container_of(vrh, struct mic_vringh, vrh); + struct mic_vdev *mvdev = mvrh->mvdev; + s8 db = mvdev->dc->h2c_vdev_db; + + if (db != -1) + mvdev->mdev->ops->send_intr(mvdev->mdev, db); +} + +/* Determine the total number of bytes consumed in a VRINGH KIOV */ +static inline u32 mic_vringh_iov_consumed(struct vringh_kiov *iov) +{ + int i; + u32 total = iov->consumed; + + for (i = 0; i < iov->i; i++) + total += iov->iov[i].iov_len; + return total; +} + +/* + * Traverse the VRINGH KIOV and issue the APIs to trigger the copies. + * This API is heavily based on the vringh_iov_xfer(..) implementation + * in vringh.c. The reason we cannot reuse vringh_iov_pull_kern(..) + * and vringh_iov_push_kern(..) directly is because there is no + * way to override the VRINGH xfer(..) routines as of v3.10. + */ +static int mic_vringh_copy(struct mic_vdev *mvdev, struct vringh_kiov *iov, + void __user *ubuf, size_t len, bool read, size_t *out_len) +{ + int ret = 0; + size_t partlen, tot_len = 0; + + while (len && iov->i < iov->used) { + partlen = min(iov->iov[iov->i].iov_len, len); + if (read) + ret = mic_virtio_copy_to_user(mvdev, + ubuf, partlen, + (u64)iov->iov[iov->i].iov_base); + else + ret = mic_virtio_copy_from_user(mvdev, + ubuf, partlen, + (u64)iov->iov[iov->i].iov_base); + if (ret) { + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + break; + } + len -= partlen; + ubuf += partlen; + tot_len += partlen; + iov->consumed += partlen; + iov->iov[iov->i].iov_len -= partlen; + iov->iov[iov->i].iov_base += partlen; + if (!iov->iov[iov->i].iov_len) { + /* Fix up old iov element then increment. */ + iov->iov[iov->i].iov_len = iov->consumed; + iov->iov[iov->i].iov_base -= iov->consumed; + + iov->consumed = 0; + iov->i++; + } + } + *out_len = tot_len; + return ret; +} + +/* + * Use the standard VRINGH infrastructure in the kernel to fetch new + * descriptors, initiate the copies and update the used ring. + */ +static int _mic_virtio_copy(struct mic_vdev *mvdev, + struct mic_copy_desc *copy) +{ + int ret = 0, iovcnt = copy->iovcnt; + struct iovec iov; + struct iovec __user *u_iov = copy->iov; + void __user *ubuf = NULL; + struct mic_vringh *mvr = &mvdev->mvr[copy->vr_idx]; + struct vringh_kiov *riov = &mvr->riov; + struct vringh_kiov *wiov = &mvr->wiov; + struct vringh *vrh = &mvr->vrh; + u16 *head = &mvr->head; + struct mic_vring *vr = &mvr->vring; + size_t len = 0, out_len; + + copy->out_len = 0; + /* Fetch a new IOVEC if all previous elements have been processed */ + if (riov->i == riov->used && wiov->i == wiov->used) { + ret = vringh_getdesc_kern(vrh, riov, wiov, + head, GFP_KERNEL); + /* Check if there are available descriptors */ + if (ret <= 0) + return ret; + } + while (iovcnt) { + if (!len) { + /* Copy over a new iovec from user space. */ + ret = copy_from_user(&iov, u_iov, sizeof(*u_iov)); + if (ret) { + ret = -EINVAL; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + break; + } + len = iov.iov_len; + ubuf = iov.iov_base; + } + /* Issue all the read descriptors first */ + ret = mic_vringh_copy(mvdev, riov, ubuf, len, + MIC_VRINGH_READ, &out_len); + if (ret) { + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + break; + } + len -= out_len; + ubuf += out_len; + copy->out_len += out_len; + /* Issue the write descriptors next */ + ret = mic_vringh_copy(mvdev, wiov, ubuf, len, + !MIC_VRINGH_READ, &out_len); + if (ret) { + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + break; + } + len -= out_len; + ubuf += out_len; + copy->out_len += out_len; + if (!len) { + /* One user space iovec is now completed */ + iovcnt--; + u_iov++; + } + /* Exit loop if all elements in KIOVs have been processed. */ + if (riov->i == riov->used && wiov->i == wiov->used) + break; + } + /* + * Update the used ring if a descriptor was available and some data was + * copied in/out and the user asked for a used ring update. + */ + if (*head != USHRT_MAX && copy->out_len && copy->update_used) { + u32 total = 0; + + /* Determine the total data consumed */ + total += mic_vringh_iov_consumed(riov); + total += mic_vringh_iov_consumed(wiov); + vringh_complete_kern(vrh, *head, total); + *head = USHRT_MAX; + if (vringh_need_notify_kern(vrh) > 0) + vringh_notify(vrh); + vringh_kiov_cleanup(riov); + vringh_kiov_cleanup(wiov); + /* Update avail idx for user space */ + vr->info->avail_idx = vrh->last_avail_idx; + } + return ret; +} + +static inline int mic_verify_copy_args(struct mic_vdev *mvdev, + struct mic_copy_desc *copy) +{ + if (copy->vr_idx >= mvdev->dd->num_vq) { + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, -EINVAL); + return -EINVAL; + } + return 0; +} + +/* Copy a specified number of virtio descriptors in a chain */ +int mic_virtio_copy_desc(struct mic_vdev *mvdev, + struct mic_copy_desc *copy) +{ + int err; + struct mic_vringh *mvr = &mvdev->mvr[copy->vr_idx]; + + err = mic_verify_copy_args(mvdev, copy); + if (err) + return err; + + mutex_lock(&mvr->vr_mutex); + if (!mic_vdevup(mvdev)) { + err = -ENODEV; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, err); + goto err; + } + err = _mic_virtio_copy(mvdev, copy); + if (err) { + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, err); + } +err: + mutex_unlock(&mvr->vr_mutex); + return err; +} + +static void mic_virtio_init_post(struct mic_vdev *mvdev) +{ + struct mic_vqconfig *vqconfig = mic_vq_config(mvdev->dd); + int i; + + for (i = 0; i < mvdev->dd->num_vq; i++) { + if (!le64_to_cpu(vqconfig[i].used_address)) { + dev_warn(mic_dev(mvdev), "used_address zero??\n"); + continue; + } + mvdev->mvr[i].vrh.vring.used = + mvdev->mdev->aper.va + + le64_to_cpu(vqconfig[i].used_address); + } + + mvdev->dc->used_address_updated = 0; + + dev_dbg(mic_dev(mvdev), "%s: device type %d LINKUP\n", + __func__, mvdev->virtio_id); +} + +static inline void mic_virtio_device_reset(struct mic_vdev *mvdev) +{ + int i; + + dev_dbg(mic_dev(mvdev), "%s: status %d device type %d RESET\n", + __func__, mvdev->dd->status, mvdev->virtio_id); + + for (i = 0; i < mvdev->dd->num_vq; i++) + /* + * Avoid lockdep false positive. The + 1 is for the mic + * mutex which is held in the reset devices code path. + */ + mutex_lock_nested(&mvdev->mvr[i].vr_mutex, i + 1); + + /* 0 status means "reset" */ + mvdev->dd->status = 0; + mvdev->dc->vdev_reset = 0; + mvdev->dc->host_ack = 1; + + for (i = 0; i < mvdev->dd->num_vq; i++) { + struct vringh *vrh = &mvdev->mvr[i].vrh; + mvdev->mvr[i].vring.info->avail_idx = 0; + vrh->completed = 0; + vrh->last_avail_idx = 0; + vrh->last_used_idx = 0; + } + + for (i = 0; i < mvdev->dd->num_vq; i++) + mutex_unlock(&mvdev->mvr[i].vr_mutex); +} + +void mic_virtio_reset_devices(struct mic_device *mdev) +{ + struct list_head *pos, *tmp; + struct mic_vdev *mvdev; + + dev_dbg(mdev->sdev->parent, "%s\n", __func__); + + list_for_each_safe(pos, tmp, &mdev->vdev_list) { + mvdev = list_entry(pos, struct mic_vdev, list); + mic_virtio_device_reset(mvdev); + mvdev->poll_wake = 1; + wake_up(&mvdev->waitq); + } +} + +void mic_bh_handler(struct work_struct *work) +{ + struct mic_vdev *mvdev = container_of(work, struct mic_vdev, + virtio_bh_work); + + if (mvdev->dc->used_address_updated) + mic_virtio_init_post(mvdev); + + if (mvdev->dc->vdev_reset) + mic_virtio_device_reset(mvdev); + + mvdev->poll_wake = 1; + wake_up(&mvdev->waitq); +} + +static irqreturn_t mic_virtio_intr_handler(int irq, void *data) +{ + struct mic_vdev *mvdev = data; + struct mic_device *mdev = mvdev->mdev; + + mdev->ops->ack_interrupt(mdev); + schedule_work(&mvdev->virtio_bh_work); + return IRQ_HANDLED; +} + +int mic_virtio_config_change(struct mic_vdev *mvdev, + void __user *argp) +{ + DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake); + int ret = 0, retry = 100, i; + struct mic_bootparam *bootparam = mvdev->mdev->dp; + s8 db = bootparam->h2c_config_db; + + mutex_lock(&mvdev->mdev->mic_mutex); + for (i = 0; i < mvdev->dd->num_vq; i++) + mutex_lock_nested(&mvdev->mvr[i].vr_mutex, i + 1); + + if (db == -1 || mvdev->dd->type == -1) { + ret = -EIO; + goto exit; + } + + if (copy_from_user(mic_vq_configspace(mvdev->dd), + argp, mvdev->dd->config_len)) { + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, -EFAULT); + ret = -EFAULT; + goto exit; + } + mvdev->dc->config_change = MIC_VIRTIO_PARAM_CONFIG_CHANGED; + mvdev->mdev->ops->send_intr(mvdev->mdev, db); + + for (i = retry; i--;) { + ret = wait_event_timeout(wake, + mvdev->dc->guest_ack, msecs_to_jiffies(100)); + if (ret) + break; + } + + dev_dbg(mic_dev(mvdev), + "%s %d retry: %d\n", __func__, __LINE__, retry); + mvdev->dc->config_change = 0; + mvdev->dc->guest_ack = 0; +exit: + for (i = 0; i < mvdev->dd->num_vq; i++) + mutex_unlock(&mvdev->mvr[i].vr_mutex); + mutex_unlock(&mvdev->mdev->mic_mutex); + return ret; +} + +static int mic_copy_dp_entry(struct mic_vdev *mvdev, + void __user *argp, + __u8 *type, + struct mic_device_desc **devpage) +{ + struct mic_device *mdev = mvdev->mdev; + struct mic_device_desc dd, *dd_config, *devp; + struct mic_vqconfig *vqconfig; + int ret = 0, i; + bool slot_found = false; + + if (copy_from_user(&dd, argp, sizeof(dd))) { + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, -EFAULT); + return -EFAULT; + } + + if (mic_aligned_desc_size(&dd) > MIC_MAX_DESC_BLK_SIZE || + dd.num_vq > MIC_MAX_VRINGS) { + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, -EINVAL); + return -EINVAL; + } + + dd_config = kmalloc(mic_desc_size(&dd), GFP_KERNEL); + if (dd_config == NULL) { + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, -ENOMEM); + return -ENOMEM; + } + if (copy_from_user(dd_config, argp, mic_desc_size(&dd))) { + ret = -EFAULT; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + goto exit; + } + + vqconfig = mic_vq_config(dd_config); + for (i = 0; i < dd.num_vq; i++) { + if (le16_to_cpu(vqconfig[i].num) > MIC_MAX_VRING_ENTRIES) { + ret = -EINVAL; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + goto exit; + } + } + + /* Find the first free device page entry */ + for (i = mic_aligned_size(struct mic_bootparam); + i < MIC_DP_SIZE - mic_total_desc_size(dd_config); + i += mic_total_desc_size(devp)) { + devp = mdev->dp + i; + if (devp->type == 0 || devp->type == -1) { + slot_found = true; + break; + } + } + if (!slot_found) { + ret = -EINVAL; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + goto exit; + } + /* + * Save off the type before doing the memcpy. Type will be set in the + * end after completing all initialization for the new device. + */ + *type = dd_config->type; + dd_config->type = 0; + memcpy(devp, dd_config, mic_desc_size(dd_config)); + + *devpage = devp; +exit: + kfree(dd_config); + return ret; +} + +static void mic_init_device_ctrl(struct mic_vdev *mvdev, + struct mic_device_desc *devpage) +{ + struct mic_device_ctrl *dc; + + dc = (void *)devpage + mic_aligned_desc_size(devpage); + + dc->config_change = 0; + dc->guest_ack = 0; + dc->vdev_reset = 0; + dc->host_ack = 0; + dc->used_address_updated = 0; + dc->c2h_vdev_db = -1; + dc->h2c_vdev_db = -1; + mvdev->dc = dc; +} + +int mic_virtio_add_device(struct mic_vdev *mvdev, + void __user *argp) +{ + struct mic_device *mdev = mvdev->mdev; + struct mic_device_desc *dd = NULL; + struct mic_vqconfig *vqconfig; + int vr_size, i, j, ret; + u8 type = 0; + s8 db; + char irqname[10]; + struct mic_bootparam *bootparam = mdev->dp; + u16 num; + + mutex_lock(&mdev->mic_mutex); + + ret = mic_copy_dp_entry(mvdev, argp, &type, &dd); + if (ret) { + mutex_unlock(&mdev->mic_mutex); + return ret; + } + + mic_init_device_ctrl(mvdev, dd); + + mvdev->dd = dd; + mvdev->virtio_id = type; + vqconfig = mic_vq_config(dd); + INIT_WORK(&mvdev->virtio_bh_work, mic_bh_handler); + + for (i = 0; i < dd->num_vq; i++) { + struct mic_vringh *mvr = &mvdev->mvr[i]; + struct mic_vring *vr = &mvdev->mvr[i].vring; + num = le16_to_cpu(vqconfig[i].num); + mutex_init(&mvr->vr_mutex); + vr_size = PAGE_ALIGN(vring_size(num, MIC_VIRTIO_RING_ALIGN) + + sizeof(struct _mic_vring_info)); + vr->va = (void *) + __get_free_pages(GFP_KERNEL | __GFP_ZERO, + get_order(vr_size)); + if (!vr->va) { + ret = -ENOMEM; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + goto err; + } + vr->len = vr_size; + vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN); + vr->info->magic = MIC_MAGIC + mvdev->virtio_id + i; + vqconfig[i].address = mic_map_single(mdev, + vr->va, vr_size); + if (mic_map_error(vqconfig[i].address)) { + free_pages((unsigned long)vr->va, get_order(vr_size)); + ret = -ENOMEM; + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + goto err; + } + vqconfig[i].address = cpu_to_le64(vqconfig[i].address); + + vring_init(&vr->vr, num, vr->va, MIC_VIRTIO_RING_ALIGN); + ret = vringh_init_kern(&mvr->vrh, + *(u32 *)mic_vq_features(mvdev->dd), num, false, + vr->vr.desc, vr->vr.avail, vr->vr.used); + if (ret) { + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, ret); + goto err; + } + vringh_kiov_init(&mvr->riov, NULL, 0); + vringh_kiov_init(&mvr->wiov, NULL, 0); + mvr->head = USHRT_MAX; + mvr->mvdev = mvdev; + mvr->vrh.notify = mic_notify; + dev_dbg(mdev->sdev->parent, + "%s %d index %d va %p info %p vr_size 0x%x\n", + __func__, __LINE__, i, vr->va, vr->info, vr_size); + } + + snprintf(irqname, sizeof(irqname), "mic%dvirtio%d", mdev->id, + mvdev->virtio_id); + mvdev->virtio_db = mic_next_db(mdev); + mvdev->virtio_cookie = mic_request_irq(mdev, mic_virtio_intr_handler, + irqname, mvdev, mvdev->virtio_db, MIC_INTR_DB); + if (IS_ERR(mvdev->virtio_cookie)) { + ret = PTR_ERR(mvdev->virtio_cookie); + dev_dbg(mdev->sdev->parent, "request irq failed\n"); + goto err; + } + + mvdev->dc->c2h_vdev_db = mvdev->virtio_db; + + list_add_tail(&mvdev->list, &mdev->vdev_list); + /* + * Order the type update with previous stores. This write barrier + * is paired with the corresponding read barrier before the uncached + * system memory read of the type, on the card while scanning the + * device page. + */ + smp_wmb(); + dd->type = type; + + dev_dbg(mdev->sdev->parent, "Added virtio device id %d\n", dd->type); + + db = bootparam->h2c_config_db; + if (db != -1) + mdev->ops->send_intr(mdev, db); + mutex_unlock(&mdev->mic_mutex); + return 0; +err: + vqconfig = mic_vq_config(dd); + for (j = 0; j < i; j++) { + struct mic_vringh *mvr = &mvdev->mvr[j]; + mic_unmap_single(mdev, le64_to_cpu(vqconfig[j].address), + mvr->vring.len); + free_pages((unsigned long)mvr->vring.va, + get_order(mvr->vring.len)); + } + mutex_unlock(&mdev->mic_mutex); + return ret; +} + +void mic_virtio_del_device(struct mic_vdev *mvdev) +{ + struct list_head *pos, *tmp; + struct mic_vdev *tmp_mvdev; + struct mic_device *mdev = mvdev->mdev; + DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake); + int i, ret, retry = 100; + struct mic_vqconfig *vqconfig; + struct mic_bootparam *bootparam = mdev->dp; + s8 db; + + mutex_lock(&mdev->mic_mutex); + db = bootparam->h2c_config_db; + if (db == -1) + goto skip_hot_remove; + dev_dbg(mdev->sdev->parent, + "Requesting hot remove id %d\n", mvdev->virtio_id); + mvdev->dc->config_change = MIC_VIRTIO_PARAM_DEV_REMOVE; + mdev->ops->send_intr(mdev, db); + for (i = retry; i--;) { + ret = wait_event_timeout(wake, + mvdev->dc->guest_ack, msecs_to_jiffies(100)); + if (ret) + break; + } + dev_dbg(mdev->sdev->parent, + "Device id %d config_change %d guest_ack %d\n", + mvdev->virtio_id, mvdev->dc->config_change, + mvdev->dc->guest_ack); + mvdev->dc->config_change = 0; + mvdev->dc->guest_ack = 0; +skip_hot_remove: + mic_free_irq(mdev, mvdev->virtio_cookie, mvdev); + flush_work(&mvdev->virtio_bh_work); + vqconfig = mic_vq_config(mvdev->dd); + for (i = 0; i < mvdev->dd->num_vq; i++) { + struct mic_vringh *mvr = &mvdev->mvr[i]; + vringh_kiov_cleanup(&mvr->riov); + vringh_kiov_cleanup(&mvr->wiov); + mic_unmap_single(mdev, le64_to_cpu(vqconfig[i].address), + mvr->vring.len); + free_pages((unsigned long)mvr->vring.va, + get_order(mvr->vring.len)); + } + + list_for_each_safe(pos, tmp, &mdev->vdev_list) { + tmp_mvdev = list_entry(pos, struct mic_vdev, list); + if (tmp_mvdev == mvdev) { + list_del(pos); + dev_dbg(mdev->sdev->parent, + "Removing virtio device id %d\n", + mvdev->virtio_id); + break; + } + } + /* + * Order the type update with previous stores. This write barrier + * is paired with the corresponding read barrier before the uncached + * system memory read of the type, on the card while scanning the + * device page. + */ + smp_wmb(); + mvdev->dd->type = -1; + mutex_unlock(&mdev->mic_mutex); +} diff --git a/drivers/misc/mic/host/mic_virtio.h b/drivers/misc/mic/host/mic_virtio.h new file mode 100644 index 000000000000..184f3c84805b --- /dev/null +++ b/drivers/misc/mic/host/mic_virtio.h @@ -0,0 +1,138 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#ifndef MIC_VIRTIO_H +#define MIC_VIRTIO_H + +#include <linux/virtio_config.h> +#include <linux/mic_ioctl.h> + +/* + * Note on endianness. + * 1. Host can be both BE or LE + * 2. Guest/card is LE. Host uses le_to_cpu to access desc/avail + * rings and ioreadXX/iowriteXX to access used ring. + * 3. Device page exposed by host to guest contains LE values. Guest + * accesses these using ioreadXX/iowriteXX etc. This way in general we + * obey the virtio spec according to which guest works with native + * endianness and host is aware of guest endianness and does all + * required endianness conversion. + * 4. Data provided from user space to guest (in ADD_DEVICE and + * CONFIG_CHANGE ioctl's) is not interpreted by the driver and should be + * in guest endianness. + */ + +/** + * struct mic_vringh - Virtio ring host information. + * + * @vring: The MIC vring used for setting up user space mappings. + * @vrh: The host VRINGH used for accessing the card vrings. + * @riov: The VRINGH read kernel IOV. + * @wiov: The VRINGH write kernel IOV. + * @head: The VRINGH head index address passed to vringh_getdesc_kern(..). + * @vr_mutex: Mutex for synchronizing access to the VRING. + * @mvdev: Back pointer to MIC virtio device for vringh_notify(..). + */ +struct mic_vringh { + struct mic_vring vring; + struct vringh vrh; + struct vringh_kiov riov; + struct vringh_kiov wiov; + u16 head; + struct mutex vr_mutex; + struct mic_vdev *mvdev; +}; + +/** + * struct mic_vdev - Host information for a card Virtio device. + * + * @virtio_id - Virtio device id. + * @waitq - Waitqueue to allow ring3 apps to poll. + * @mdev - Back pointer to host MIC device. + * @poll_wake - Used for waking up threads blocked in poll. + * @out_bytes - Debug stats for number of bytes copied from host to card. + * @in_bytes - Debug stats for number of bytes copied from card to host. + * @mvr - Store per VRING data structures. + * @virtio_bh_work - Work struct used to schedule virtio bottom half handling. + * @dd - Virtio device descriptor. + * @dc - Virtio device control fields. + * @list - List of Virtio devices. + * @virtio_db - The doorbell used by the card to interrupt the host. + * @virtio_cookie - The cookie returned while requesting interrupts. + */ +struct mic_vdev { + int virtio_id; + wait_queue_head_t waitq; + struct mic_device *mdev; + int poll_wake; + unsigned long out_bytes; + unsigned long in_bytes; + struct mic_vringh mvr[MIC_MAX_VRINGS]; + struct work_struct virtio_bh_work; + struct mic_device_desc *dd; + struct mic_device_ctrl *dc; + struct list_head list; + int virtio_db; + struct mic_irq *virtio_cookie; +}; + +void mic_virtio_uninit(struct mic_device *mdev); +int mic_virtio_add_device(struct mic_vdev *mvdev, + void __user *argp); +void mic_virtio_del_device(struct mic_vdev *mvdev); +int mic_virtio_config_change(struct mic_vdev *mvdev, + void __user *argp); +int mic_virtio_copy_desc(struct mic_vdev *mvdev, + struct mic_copy_desc *request); +void mic_virtio_reset_devices(struct mic_device *mdev); +void mic_bh_handler(struct work_struct *work); + +/* Helper API to obtain the MIC PCIe device */ +static inline struct device *mic_dev(struct mic_vdev *mvdev) +{ + return mvdev->mdev->sdev->parent; +} + +/* Helper API to check if a virtio device is initialized */ +static inline int mic_vdev_inited(struct mic_vdev *mvdev) +{ + /* Device has not been created yet */ + if (!mvdev->dd || !mvdev->dd->type) { + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, -EINVAL); + return -EINVAL; + } + + /* Device has been removed/deleted */ + if (mvdev->dd->type == -1) { + dev_err(mic_dev(mvdev), "%s %d err %d\n", + __func__, __LINE__, -ENODEV); + return -ENODEV; + } + + return 0; +} + +/* Helper API to check if a virtio device is running */ +static inline bool mic_vdevup(struct mic_vdev *mvdev) +{ + return !!mvdev->dd->status; +} +#endif diff --git a/drivers/misc/mic/host/mic_x100.c b/drivers/misc/mic/host/mic_x100.c new file mode 100644 index 000000000000..81e9541b784c --- /dev/null +++ b/drivers/misc/mic/host/mic_x100.c @@ -0,0 +1,570 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#include <linux/fs.h> +#include <linux/pci.h> +#include <linux/sched.h> +#include <linux/firmware.h> +#include <linux/delay.h> + +#include "../common/mic_dev.h" +#include "mic_device.h" +#include "mic_x100.h" +#include "mic_smpt.h" + +/** + * mic_x100_write_spad - write to the scratchpad register + * @mdev: pointer to mic_device instance + * @idx: index to the scratchpad register, 0 based + * @val: the data value to put into the register + * + * This function allows writing of a 32bit value to the indexed scratchpad + * register. + * + * RETURNS: none. + */ +static void +mic_x100_write_spad(struct mic_device *mdev, unsigned int idx, u32 val) +{ + dev_dbg(mdev->sdev->parent, "Writing 0x%x to scratch pad index %d\n", + val, idx); + mic_mmio_write(&mdev->mmio, val, + MIC_X100_SBOX_BASE_ADDRESS + + MIC_X100_SBOX_SPAD0 + idx * 4); +} + +/** + * mic_x100_read_spad - read from the scratchpad register + * @mdev: pointer to mic_device instance + * @idx: index to scratchpad register, 0 based + * + * This function allows reading of the 32bit scratchpad register. + * + * RETURNS: An appropriate -ERRNO error value on error, or zero for success. + */ +static u32 +mic_x100_read_spad(struct mic_device *mdev, unsigned int idx) +{ + u32 val = mic_mmio_read(&mdev->mmio, + MIC_X100_SBOX_BASE_ADDRESS + + MIC_X100_SBOX_SPAD0 + idx * 4); + + dev_dbg(mdev->sdev->parent, + "Reading 0x%x from scratch pad index %d\n", val, idx); + return val; +} + +/** + * mic_x100_enable_interrupts - Enable interrupts. + * @mdev: pointer to mic_device instance + */ +static void mic_x100_enable_interrupts(struct mic_device *mdev) +{ + u32 reg; + struct mic_mw *mw = &mdev->mmio; + u32 sice0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SICE0; + u32 siac0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SIAC0; + + reg = mic_mmio_read(mw, sice0); + reg |= MIC_X100_SBOX_DBR_BITS(0xf) | MIC_X100_SBOX_DMA_BITS(0xff); + mic_mmio_write(mw, reg, sice0); + + /* + * Enable auto-clear when enabling interrupts. Applicable only for + * MSI-x. Legacy and MSI mode cannot have auto-clear enabled. + */ + if (mdev->irq_info.num_vectors > 1) { + reg = mic_mmio_read(mw, siac0); + reg |= MIC_X100_SBOX_DBR_BITS(0xf) | + MIC_X100_SBOX_DMA_BITS(0xff); + mic_mmio_write(mw, reg, siac0); + } +} + +/** + * mic_x100_disable_interrupts - Disable interrupts. + * @mdev: pointer to mic_device instance + */ +static void mic_x100_disable_interrupts(struct mic_device *mdev) +{ + u32 reg; + struct mic_mw *mw = &mdev->mmio; + u32 sice0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SICE0; + u32 siac0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SIAC0; + u32 sicc0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SICC0; + + reg = mic_mmio_read(mw, sice0); + mic_mmio_write(mw, reg, sicc0); + + if (mdev->irq_info.num_vectors > 1) { + reg = mic_mmio_read(mw, siac0); + reg &= ~(MIC_X100_SBOX_DBR_BITS(0xf) | + MIC_X100_SBOX_DMA_BITS(0xff)); + mic_mmio_write(mw, reg, siac0); + } +} + +/** + * mic_x100_send_sbox_intr - Send an MIC_X100_SBOX interrupt to MIC. + * @mdev: pointer to mic_device instance + */ +static void mic_x100_send_sbox_intr(struct mic_device *mdev, + int doorbell) +{ + struct mic_mw *mw = &mdev->mmio; + u64 apic_icr_offset = MIC_X100_SBOX_APICICR0 + doorbell * 8; + u32 apicicr_low = mic_mmio_read(mw, MIC_X100_SBOX_BASE_ADDRESS + + apic_icr_offset); + + /* for MIC we need to make sure we "hit" the send_icr bit (13) */ + apicicr_low = (apicicr_low | (1 << 13)); + + /* Ensure that the interrupt is ordered w.r.t. previous stores. */ + wmb(); + mic_mmio_write(mw, apicicr_low, + MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset); +} + +/** + * mic_x100_send_rdmasr_intr - Send an RDMASR interrupt to MIC. + * @mdev: pointer to mic_device instance + */ +static void mic_x100_send_rdmasr_intr(struct mic_device *mdev, + int doorbell) +{ + int rdmasr_offset = MIC_X100_SBOX_RDMASR0 + (doorbell << 2); + /* Ensure that the interrupt is ordered w.r.t. previous stores. */ + wmb(); + mic_mmio_write(&mdev->mmio, 0, + MIC_X100_SBOX_BASE_ADDRESS + rdmasr_offset); +} + +/** + * __mic_x100_send_intr - Send interrupt to MIC. + * @mdev: pointer to mic_device instance + * @doorbell: doorbell number. + */ +static void mic_x100_send_intr(struct mic_device *mdev, int doorbell) +{ + int rdmasr_db; + if (doorbell < MIC_X100_NUM_SBOX_IRQ) { + mic_x100_send_sbox_intr(mdev, doorbell); + } else { + rdmasr_db = doorbell - MIC_X100_NUM_SBOX_IRQ + + MIC_X100_RDMASR_IRQ_BASE; + mic_x100_send_rdmasr_intr(mdev, rdmasr_db); + } +} + +/** + * mic_ack_interrupt - Device specific interrupt handling. + * @mdev: pointer to mic_device instance + * + * Returns: bitmask of doorbell events triggered. + */ +static u32 mic_x100_ack_interrupt(struct mic_device *mdev) +{ + u32 reg = 0; + struct mic_mw *mw = &mdev->mmio; + u32 sicr0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SICR0; + + /* Clear pending bit array. */ + if (MIC_A0_STEP == mdev->stepping) + mic_mmio_write(mw, 1, MIC_X100_SBOX_BASE_ADDRESS + + MIC_X100_SBOX_MSIXPBACR); + + if (mdev->irq_info.num_vectors <= 1) { + reg = mic_mmio_read(mw, sicr0); + + if (unlikely(!reg)) + goto done; + + mic_mmio_write(mw, reg, sicr0); + } + + if (mdev->stepping >= MIC_B0_STEP) + mdev->intr_ops->enable_interrupts(mdev); +done: + return reg; +} + +/** + * mic_x100_hw_intr_init - Initialize h/w specific interrupt + * information. + * @mdev: pointer to mic_device instance + */ +static void mic_x100_hw_intr_init(struct mic_device *mdev) +{ + mdev->intr_info = (struct mic_intr_info *)mic_x100_intr_init; +} + +/** + * mic_x100_read_msi_to_src_map - read from the MSI mapping registers + * @mdev: pointer to mic_device instance + * @idx: index to the mapping register, 0 based + * + * This function allows reading of the 32bit MSI mapping register. + * + * RETURNS: The value in the register. + */ +static u32 +mic_x100_read_msi_to_src_map(struct mic_device *mdev, int idx) +{ + return mic_mmio_read(&mdev->mmio, + MIC_X100_SBOX_BASE_ADDRESS + + MIC_X100_SBOX_MXAR0 + idx * 4); +} + +/** + * mic_x100_program_msi_to_src_map - program the MSI mapping registers + * @mdev: pointer to mic_device instance + * @idx: index to the mapping register, 0 based + * @offset: The bit offset in the register that needs to be updated. + * @set: boolean specifying if the bit in the specified offset needs + * to be set or cleared. + * + * RETURNS: None. + */ +static void +mic_x100_program_msi_to_src_map(struct mic_device *mdev, + int idx, int offset, bool set) +{ + unsigned long reg; + struct mic_mw *mw = &mdev->mmio; + u32 mxar = MIC_X100_SBOX_BASE_ADDRESS + + MIC_X100_SBOX_MXAR0 + idx * 4; + + reg = mic_mmio_read(mw, mxar); + if (set) + __set_bit(offset, ®); + else + __clear_bit(offset, ®); + mic_mmio_write(mw, reg, mxar); +} + +/* + * mic_x100_reset_fw_ready - Reset Firmware ready status field. + * @mdev: pointer to mic_device instance + */ +static void mic_x100_reset_fw_ready(struct mic_device *mdev) +{ + mdev->ops->write_spad(mdev, MIC_X100_DOWNLOAD_INFO, 0); +} + +/* + * mic_x100_is_fw_ready - Check if firmware is ready. + * @mdev: pointer to mic_device instance + */ +static bool mic_x100_is_fw_ready(struct mic_device *mdev) +{ + u32 scratch2 = mdev->ops->read_spad(mdev, MIC_X100_DOWNLOAD_INFO); + return MIC_X100_SPAD2_DOWNLOAD_STATUS(scratch2) ? true : false; +} + +/** + * mic_x100_get_apic_id - Get bootstrap APIC ID. + * @mdev: pointer to mic_device instance + */ +static u32 mic_x100_get_apic_id(struct mic_device *mdev) +{ + u32 scratch2 = 0; + + scratch2 = mdev->ops->read_spad(mdev, MIC_X100_DOWNLOAD_INFO); + return MIC_X100_SPAD2_APIC_ID(scratch2); +} + +/** + * mic_x100_send_firmware_intr - Send an interrupt to the firmware on MIC. + * @mdev: pointer to mic_device instance + */ +static void mic_x100_send_firmware_intr(struct mic_device *mdev) +{ + u32 apicicr_low; + u64 apic_icr_offset = MIC_X100_SBOX_APICICR7; + int vector = MIC_X100_BSP_INTERRUPT_VECTOR; + struct mic_mw *mw = &mdev->mmio; + + /* + * For MIC we need to make sure we "hit" + * the send_icr bit (13). + */ + apicicr_low = (vector | (1 << 13)); + + mic_mmio_write(mw, mic_x100_get_apic_id(mdev), + MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset + 4); + + /* Ensure that the interrupt is ordered w.r.t. previous stores. */ + wmb(); + mic_mmio_write(mw, apicicr_low, + MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset); +} + +/** + * mic_x100_hw_reset - Reset the MIC device. + * @mdev: pointer to mic_device instance + */ +static void mic_x100_hw_reset(struct mic_device *mdev) +{ + u32 reset_reg; + u32 rgcr = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_RGCR; + struct mic_mw *mw = &mdev->mmio; + + /* Ensure that the reset is ordered w.r.t. previous loads and stores */ + mb(); + /* Trigger reset */ + reset_reg = mic_mmio_read(mw, rgcr); + reset_reg |= 0x1; + mic_mmio_write(mw, reset_reg, rgcr); + /* + * It seems we really want to delay at least 1 second + * after touching reset to prevent a lot of problems. + */ + msleep(1000); +} + +/** + * mic_x100_load_command_line - Load command line to MIC. + * @mdev: pointer to mic_device instance + * @fw: the firmware image + * + * RETURNS: An appropriate -ERRNO error value on error, or zero for success. + */ +static int +mic_x100_load_command_line(struct mic_device *mdev, const struct firmware *fw) +{ + u32 len = 0; + u32 boot_mem; + char *buf; + void __iomem *cmd_line_va = mdev->aper.va + mdev->bootaddr + fw->size; +#define CMDLINE_SIZE 2048 + + boot_mem = mdev->aper.len >> 20; + buf = kzalloc(CMDLINE_SIZE, GFP_KERNEL); + if (!buf) { + dev_err(mdev->sdev->parent, + "%s %d allocation failed\n", __func__, __LINE__); + return -ENOMEM; + } + len += snprintf(buf, CMDLINE_SIZE - len, + " mem=%dM", boot_mem); + if (mdev->cmdline) + snprintf(buf + len, CMDLINE_SIZE - len, " %s", mdev->cmdline); + memcpy_toio(cmd_line_va, buf, strlen(buf) + 1); + kfree(buf); + return 0; +} + +/** + * mic_x100_load_ramdisk - Load ramdisk to MIC. + * @mdev: pointer to mic_device instance + * + * RETURNS: An appropriate -ERRNO error value on error, or zero for success. + */ +static int +mic_x100_load_ramdisk(struct mic_device *mdev) +{ + const struct firmware *fw; + int rc; + struct boot_params __iomem *bp = mdev->aper.va + mdev->bootaddr; + + rc = request_firmware(&fw, + mdev->ramdisk, mdev->sdev->parent); + if (rc < 0) { + dev_err(mdev->sdev->parent, + "ramdisk request_firmware failed: %d %s\n", + rc, mdev->ramdisk); + goto error; + } + /* + * Typically the bootaddr for card OS is 64M + * so copy over the ramdisk @ 128M. + */ + memcpy_toio(mdev->aper.va + (mdev->bootaddr << 1), fw->data, fw->size); + iowrite32(cpu_to_le32(mdev->bootaddr << 1), &bp->hdr.ramdisk_image); + iowrite32(cpu_to_le32(fw->size), &bp->hdr.ramdisk_size); + release_firmware(fw); +error: + return rc; +} + +/** + * mic_x100_get_boot_addr - Get MIC boot address. + * @mdev: pointer to mic_device instance + * + * This function is called during firmware load to determine + * the address at which the OS should be downloaded in card + * memory i.e. GDDR. + * RETURNS: An appropriate -ERRNO error value on error, or zero for success. + */ +static int +mic_x100_get_boot_addr(struct mic_device *mdev) +{ + u32 scratch2, boot_addr; + int rc = 0; + + scratch2 = mdev->ops->read_spad(mdev, MIC_X100_DOWNLOAD_INFO); + boot_addr = MIC_X100_SPAD2_DOWNLOAD_ADDR(scratch2); + dev_dbg(mdev->sdev->parent, "%s %d boot_addr 0x%x\n", + __func__, __LINE__, boot_addr); + if (boot_addr > (1 << 31)) { + dev_err(mdev->sdev->parent, + "incorrect bootaddr 0x%x\n", + boot_addr); + rc = -EINVAL; + goto error; + } + mdev->bootaddr = boot_addr; +error: + return rc; +} + +/** + * mic_x100_load_firmware - Load firmware to MIC. + * @mdev: pointer to mic_device instance + * @buf: buffer containing boot string including firmware/ramdisk path. + * + * RETURNS: An appropriate -ERRNO error value on error, or zero for success. + */ +static int +mic_x100_load_firmware(struct mic_device *mdev, const char *buf) +{ + int rc; + const struct firmware *fw; + + rc = mic_x100_get_boot_addr(mdev); + if (rc) + goto error; + /* load OS */ + rc = request_firmware(&fw, mdev->firmware, mdev->sdev->parent); + if (rc < 0) { + dev_err(mdev->sdev->parent, + "ramdisk request_firmware failed: %d %s\n", + rc, mdev->firmware); + goto error; + } + if (mdev->bootaddr > mdev->aper.len - fw->size) { + rc = -EINVAL; + dev_err(mdev->sdev->parent, "%s %d rc %d bootaddr 0x%x\n", + __func__, __LINE__, rc, mdev->bootaddr); + release_firmware(fw); + goto error; + } + memcpy_toio(mdev->aper.va + mdev->bootaddr, fw->data, fw->size); + mdev->ops->write_spad(mdev, MIC_X100_FW_SIZE, fw->size); + if (!strcmp(mdev->bootmode, "elf")) + goto done; + /* load command line */ + rc = mic_x100_load_command_line(mdev, fw); + if (rc) { + dev_err(mdev->sdev->parent, "%s %d rc %d\n", + __func__, __LINE__, rc); + goto error; + } + release_firmware(fw); + /* load ramdisk */ + if (mdev->ramdisk) + rc = mic_x100_load_ramdisk(mdev); +error: + dev_dbg(mdev->sdev->parent, "%s %d rc %d\n", __func__, __LINE__, rc); +done: + return rc; +} + +/** + * mic_x100_get_postcode - Get postcode status from firmware. + * @mdev: pointer to mic_device instance + * + * RETURNS: postcode. + */ +static u32 mic_x100_get_postcode(struct mic_device *mdev) +{ + return mic_mmio_read(&mdev->mmio, MIC_X100_POSTCODE); +} + +/** + * mic_x100_smpt_set - Update an SMPT entry with a DMA address. + * @mdev: pointer to mic_device instance + * + * RETURNS: none. + */ +static void +mic_x100_smpt_set(struct mic_device *mdev, dma_addr_t dma_addr, u8 index) +{ +#define SNOOP_ON (0 << 0) +#define SNOOP_OFF (1 << 0) +/* + * Sbox Smpt Reg Bits: + * Bits 31:2 Host address + * Bits 1 RSVD + * Bits 0 No snoop + */ +#define BUILD_SMPT(NO_SNOOP, HOST_ADDR) \ + (u32)(((HOST_ADDR) << 2) | ((NO_SNOOP) & 0x01)) + + uint32_t smpt_reg_val = BUILD_SMPT(SNOOP_ON, + dma_addr >> mdev->smpt->info.page_shift); + mic_mmio_write(&mdev->mmio, smpt_reg_val, + MIC_X100_SBOX_BASE_ADDRESS + + MIC_X100_SBOX_SMPT00 + (4 * index)); +} + +/** + * mic_x100_smpt_hw_init - Initialize SMPT X100 specific fields. + * @mdev: pointer to mic_device instance + * + * RETURNS: none. + */ +static void mic_x100_smpt_hw_init(struct mic_device *mdev) +{ + struct mic_smpt_hw_info *info = &mdev->smpt->info; + + info->num_reg = 32; + info->page_shift = 34; + info->page_size = (1ULL << info->page_shift); + info->base = 0x8000000000ULL; +} + +struct mic_smpt_ops mic_x100_smpt_ops = { + .init = mic_x100_smpt_hw_init, + .set = mic_x100_smpt_set, +}; + +struct mic_hw_ops mic_x100_ops = { + .aper_bar = MIC_X100_APER_BAR, + .mmio_bar = MIC_X100_MMIO_BAR, + .read_spad = mic_x100_read_spad, + .write_spad = mic_x100_write_spad, + .send_intr = mic_x100_send_intr, + .ack_interrupt = mic_x100_ack_interrupt, + .reset = mic_x100_hw_reset, + .reset_fw_ready = mic_x100_reset_fw_ready, + .is_fw_ready = mic_x100_is_fw_ready, + .send_firmware_intr = mic_x100_send_firmware_intr, + .load_mic_fw = mic_x100_load_firmware, + .get_postcode = mic_x100_get_postcode, +}; + +struct mic_hw_intr_ops mic_x100_intr_ops = { + .intr_init = mic_x100_hw_intr_init, + .enable_interrupts = mic_x100_enable_interrupts, + .disable_interrupts = mic_x100_disable_interrupts, + .program_msi_to_src_map = mic_x100_program_msi_to_src_map, + .read_msi_to_src_map = mic_x100_read_msi_to_src_map, +}; diff --git a/drivers/misc/mic/host/mic_x100.h b/drivers/misc/mic/host/mic_x100.h new file mode 100644 index 000000000000..8b7daa182e54 --- /dev/null +++ b/drivers/misc/mic/host/mic_x100.h @@ -0,0 +1,98 @@ +/* + * Intel MIC Platform Software Stack (MPSS) + * + * Copyright(c) 2013 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, version 2, as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Intel MIC Host driver. + * + */ +#ifndef _MIC_X100_HW_H_ +#define _MIC_X100_HW_H_ + +#define MIC_X100_PCI_DEVICE_2250 0x2250 +#define MIC_X100_PCI_DEVICE_2251 0x2251 +#define MIC_X100_PCI_DEVICE_2252 0x2252 +#define MIC_X100_PCI_DEVICE_2253 0x2253 +#define MIC_X100_PCI_DEVICE_2254 0x2254 +#define MIC_X100_PCI_DEVICE_2255 0x2255 +#define MIC_X100_PCI_DEVICE_2256 0x2256 +#define MIC_X100_PCI_DEVICE_2257 0x2257 +#define MIC_X100_PCI_DEVICE_2258 0x2258 +#define MIC_X100_PCI_DEVICE_2259 0x2259 +#define MIC_X100_PCI_DEVICE_225a 0x225a +#define MIC_X100_PCI_DEVICE_225b 0x225b +#define MIC_X100_PCI_DEVICE_225c 0x225c +#define MIC_X100_PCI_DEVICE_225d 0x225d +#define MIC_X100_PCI_DEVICE_225e 0x225e + +#define MIC_X100_APER_BAR 0 +#define MIC_X100_MMIO_BAR 4 + +#define MIC_X100_SBOX_BASE_ADDRESS 0x00010000 +#define MIC_X100_SBOX_SPAD0 0x0000AB20 +#define MIC_X100_SBOX_SICR0_DBR(x) ((x) & 0xf) +#define MIC_X100_SBOX_SICR0_DMA(x) (((x) >> 8) & 0xff) +#define MIC_X100_SBOX_SICE0_DBR(x) ((x) & 0xf) +#define MIC_X100_SBOX_DBR_BITS(x) ((x) & 0xf) +#define MIC_X100_SBOX_SICE0_DMA(x) (((x) >> 8) & 0xff) +#define MIC_X100_SBOX_DMA_BITS(x) (((x) & 0xff) << 8) + +#define MIC_X100_SBOX_APICICR0 0x0000A9D0 +#define MIC_X100_SBOX_SICR0 0x00009004 +#define MIC_X100_SBOX_SICE0 0x0000900C +#define MIC_X100_SBOX_SICC0 0x00009010 +#define MIC_X100_SBOX_SIAC0 0x00009014 +#define MIC_X100_SBOX_MSIXPBACR 0x00009084 +#define MIC_X100_SBOX_MXAR0 0x00009044 +#define MIC_X100_SBOX_SMPT00 0x00003100 +#define MIC_X100_SBOX_RDMASR0 0x0000B180 + +#define MIC_X100_DOORBELL_IDX_START 0 +#define MIC_X100_NUM_DOORBELL 4 +#define MIC_X100_DMA_IDX_START 8 +#define MIC_X100_NUM_DMA 8 +#define MIC_X100_ERR_IDX_START 30 +#define MIC_X100_NUM_ERR 1 + +#define MIC_X100_NUM_SBOX_IRQ 8 +#define MIC_X100_NUM_RDMASR_IRQ 8 +#define MIC_X100_RDMASR_IRQ_BASE 17 +#define MIC_X100_SPAD2_DOWNLOAD_STATUS(x) ((x) & 0x1) +#define MIC_X100_SPAD2_APIC_ID(x) (((x) >> 1) & 0x1ff) +#define MIC_X100_SPAD2_DOWNLOAD_ADDR(x) ((x) & 0xfffff000) +#define MIC_X100_SBOX_APICICR7 0x0000AA08 +#define MIC_X100_SBOX_RGCR 0x00004010 +#define MIC_X100_SBOX_SDBIC0 0x0000CC90 +#define MIC_X100_DOWNLOAD_INFO 2 +#define MIC_X100_FW_SIZE 5 +#define MIC_X100_POSTCODE 0x242c + +static const u16 mic_x100_intr_init[] = { + MIC_X100_DOORBELL_IDX_START, + MIC_X100_DMA_IDX_START, + MIC_X100_ERR_IDX_START, + MIC_X100_NUM_DOORBELL, + MIC_X100_NUM_DMA, + MIC_X100_NUM_ERR, +}; + +/* Host->Card(bootstrap) Interrupt Vector */ +#define MIC_X100_BSP_INTERRUPT_VECTOR 229 + +extern struct mic_hw_ops mic_x100_ops; +extern struct mic_smpt_ops mic_x100_smpt_ops; +extern struct mic_hw_intr_ops mic_x100_intr_ops; + +#endif diff --git a/drivers/misc/phantom.c b/drivers/misc/phantom.c index 68b7c773d2cf..30754927fd80 100644 --- a/drivers/misc/phantom.c +++ b/drivers/misc/phantom.c @@ -395,7 +395,7 @@ static int phantom_probe(struct pci_dev *pdev, iowrite32(0, pht->caddr + PHN_IRQCTL); ioread32(pht->caddr + PHN_IRQCTL); /* PCI posting */ retval = request_irq(pdev->irq, phantom_isr, - IRQF_SHARED | IRQF_DISABLED, "phantom", pht); + IRQF_SHARED, "phantom", pht); if (retval) { dev_err(&pdev->dev, "can't establish ISR\n"); goto err_unmo; diff --git a/drivers/misc/pti.c b/drivers/misc/pti.c index f84ff0c06035..eda38cbe8530 100644 --- a/drivers/misc/pti.c +++ b/drivers/misc/pti.c @@ -892,7 +892,6 @@ static void pti_pci_remove(struct pci_dev *pdev) } iounmap(drv_data->pti_ioaddr); - pci_set_drvdata(pdev, NULL); kfree(drv_data); pci_release_region(pdev, 1); pci_disable_device(pdev); diff --git a/drivers/misc/ti_dac7512.c b/drivers/misc/ti_dac7512.c index 9b237221bc4e..83da711ce9f1 100644 --- a/drivers/misc/ti_dac7512.c +++ b/drivers/misc/ti_dac7512.c @@ -22,9 +22,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/spi/spi.h> - -#define DAC7512_DRV_NAME "dac7512" -#define DRIVER_VERSION "1.0" +#include <linux/of.h> static ssize_t dac7512_store_val(struct device *dev, struct device_attribute *attr, @@ -75,13 +73,29 @@ static int dac7512_remove(struct spi_device *spi) return 0; } +static const struct spi_device_id dac7512_id_table[] = { + { "dac7512", 0 }, + { } +}; +MODULE_DEVICE_TABLE(spi, dac7512_id_table); + +#ifdef CONFIG_OF +static const struct of_device_id dac7512_of_match[] = { + { .compatible = "ti,dac7512", }, + { } +}; +MODULE_DEVICE_TABLE(of, dac7512_of_match); +#endif + static struct spi_driver dac7512_driver = { .driver = { - .name = DAC7512_DRV_NAME, + .name = "dac7512", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(dac7512_of_match), }, .probe = dac7512_probe, .remove = dac7512_remove, + .id_table = dac7512_id_table, }; module_spi_driver(dac7512_driver); @@ -89,4 +103,3 @@ module_spi_driver(dac7512_driver); MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>"); MODULE_DESCRIPTION("DAC7512 16-bit DAC"); MODULE_LICENSE("GPL v2"); -MODULE_VERSION(DRIVER_VERSION); diff --git a/drivers/misc/tifm_7xx1.c b/drivers/misc/tifm_7xx1.c index f8d6654391e5..a606c8901e18 100644 --- a/drivers/misc/tifm_7xx1.c +++ b/drivers/misc/tifm_7xx1.c @@ -356,8 +356,10 @@ static int tifm_7xx1_probe(struct pci_dev *dev, pci_set_drvdata(dev, fm); fm->addr = pci_ioremap_bar(dev, 0); - if (!fm->addr) + if (!fm->addr) { + rc = -ENODEV; goto err_out_free; + } rc = request_irq(dev->irq, tifm_7xx1_isr, IRQF_SHARED, DRIVER_NAME, fm); if (rc) @@ -378,7 +380,6 @@ err_out_irq: err_out_unmap: iounmap(fm->addr); err_out_free: - pci_set_drvdata(dev, NULL); tifm_free_adapter(fm); err_out_int: pci_intx(dev, 0); @@ -405,8 +406,6 @@ static void tifm_7xx1_remove(struct pci_dev *dev) for (cnt = 0; cnt < fm->num_sockets; cnt++) tifm_7xx1_sock_power_off(tifm_7xx1_sock_addr(fm->addr, cnt)); - pci_set_drvdata(dev, NULL); - iounmap(fm->addr); pci_intx(dev, 0); pci_release_regions(dev); diff --git a/drivers/misc/tifm_core.c b/drivers/misc/tifm_core.c index 0ab7c922212c..a511b2a713b3 100644 --- a/drivers/misc/tifm_core.c +++ b/drivers/misc/tifm_core.c @@ -145,15 +145,17 @@ static ssize_t type_show(struct device *dev, struct device_attribute *attr, struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev); return sprintf(buf, "%x", sock->type); } +static DEVICE_ATTR_RO(type); -static struct device_attribute tifm_dev_attrs[] = { - __ATTR(type, S_IRUGO, type_show, NULL), - __ATTR_NULL +static struct attribute *tifm_dev_attrs[] = { + &dev_attr_type.attr, + NULL, }; +ATTRIBUTE_GROUPS(tifm_dev); static struct bus_type tifm_bus_type = { .name = "tifm", - .dev_attrs = tifm_dev_attrs, + .dev_groups = tifm_dev_groups, .match = tifm_bus_match, .uevent = tifm_uevent, .probe = tifm_device_probe, diff --git a/drivers/misc/vmw_vmci/vmci_guest.c b/drivers/misc/vmw_vmci/vmci_guest.c index b3a2b763ecf2..c98b03b99353 100644 --- a/drivers/misc/vmw_vmci/vmci_guest.c +++ b/drivers/misc/vmw_vmci/vmci_guest.c @@ -649,7 +649,7 @@ static int vmci_guest_probe_device(struct pci_dev *pdev, return 0; err_free_irq: - free_irq(vmci_dev->irq, &vmci_dev); + free_irq(vmci_dev->irq, vmci_dev); tasklet_kill(&vmci_dev->datagram_tasklet); tasklet_kill(&vmci_dev->bm_tasklet); diff --git a/drivers/misc/vmw_vmci/vmci_host.c b/drivers/misc/vmw_vmci/vmci_host.c index d4722b3dc8ec..1723a6e4f2e8 100644 --- a/drivers/misc/vmw_vmci/vmci_host.c +++ b/drivers/misc/vmw_vmci/vmci_host.c @@ -243,11 +243,7 @@ static int vmci_host_setup_notify(struct vmci_ctx *context, /* * Lock physical page backing a given user VA. */ - down_read(¤t->mm->mmap_sem); - retval = get_user_pages(current, current->mm, - PAGE_ALIGN(uva), - 1, 1, 0, &page, NULL); - up_read(¤t->mm->mmap_sem); + retval = get_user_pages_fast(PAGE_ALIGN(uva), 1, 1, &page); if (retval != 1) return VMCI_ERROR_GENERIC; diff --git a/drivers/misc/vmw_vmci/vmci_queue_pair.c b/drivers/misc/vmw_vmci/vmci_queue_pair.c index a0515a6d6ebd..1b7b303085d2 100644 --- a/drivers/misc/vmw_vmci/vmci_queue_pair.c +++ b/drivers/misc/vmw_vmci/vmci_queue_pair.c @@ -732,13 +732,9 @@ static int qp_host_get_user_memory(u64 produce_uva, int retval; int err = VMCI_SUCCESS; - down_write(¤t->mm->mmap_sem); - retval = get_user_pages(current, - current->mm, - (uintptr_t) produce_uva, - produce_q->kernel_if->num_pages, - 1, 0, - produce_q->kernel_if->u.h.header_page, NULL); + retval = get_user_pages_fast((uintptr_t) produce_uva, + produce_q->kernel_if->num_pages, 1, + produce_q->kernel_if->u.h.header_page); if (retval < produce_q->kernel_if->num_pages) { pr_warn("get_user_pages(produce) failed (retval=%d)", retval); qp_release_pages(produce_q->kernel_if->u.h.header_page, @@ -747,12 +743,9 @@ static int qp_host_get_user_memory(u64 produce_uva, goto out; } - retval = get_user_pages(current, - current->mm, - (uintptr_t) consume_uva, - consume_q->kernel_if->num_pages, - 1, 0, - consume_q->kernel_if->u.h.header_page, NULL); + retval = get_user_pages_fast((uintptr_t) consume_uva, + consume_q->kernel_if->num_pages, 1, + consume_q->kernel_if->u.h.header_page); if (retval < consume_q->kernel_if->num_pages) { pr_warn("get_user_pages(consume) failed (retval=%d)", retval); qp_release_pages(consume_q->kernel_if->u.h.header_page, @@ -763,8 +756,6 @@ static int qp_host_get_user_memory(u64 produce_uva, } out: - up_write(¤t->mm->mmap_sem); - return err; } diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 704bf66f5873..3e227bd91e81 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -27,7 +27,7 @@ #define to_mmc_driver(d) container_of(d, struct mmc_driver, drv) -static ssize_t mmc_type_show(struct device *dev, +static ssize_t type_show(struct device *dev, struct device_attribute *attr, char *buf) { struct mmc_card *card = mmc_dev_to_card(dev); @@ -45,11 +45,13 @@ static ssize_t mmc_type_show(struct device *dev, return -EFAULT; } } +static DEVICE_ATTR_RO(type); -static struct device_attribute mmc_dev_attrs[] = { - __ATTR(type, S_IRUGO, mmc_type_show, NULL), - __ATTR_NULL, +static struct attribute *mmc_dev_attrs[] = { + &dev_attr_type.attr, + NULL, }; +ATTRIBUTE_GROUPS(mmc_dev); /* * This currently matches any MMC driver to any MMC card - drivers @@ -218,7 +220,7 @@ static const struct dev_pm_ops mmc_bus_pm_ops = { static struct bus_type mmc_bus_type = { .name = "mmc", - .dev_attrs = mmc_dev_attrs, + .dev_groups = mmc_dev_groups, .match = mmc_bus_match, .uevent = mmc_bus_uevent, .probe = mmc_bus_probe, diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c index 6d67492a9247..ef8956568c3a 100644 --- a/drivers/mmc/core/sdio_bus.c +++ b/drivers/mmc/core/sdio_bus.c @@ -34,7 +34,8 @@ field##_show(struct device *dev, struct device_attribute *attr, char *buf) \ \ func = dev_to_sdio_func (dev); \ return sprintf (buf, format_string, func->field); \ -} +} \ +static DEVICE_ATTR_RO(field) sdio_config_attr(class, "0x%02x\n"); sdio_config_attr(vendor, "0x%04x\n"); @@ -47,14 +48,16 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, return sprintf(buf, "sdio:c%02Xv%04Xd%04X\n", func->class, func->vendor, func->device); } - -static struct device_attribute sdio_dev_attrs[] = { - __ATTR_RO(class), - __ATTR_RO(vendor), - __ATTR_RO(device), - __ATTR_RO(modalias), - __ATTR_NULL, +static DEVICE_ATTR_RO(modalias); + +static struct attribute *sdio_dev_attrs[] = { + &dev_attr_class.attr, + &dev_attr_vendor.attr, + &dev_attr_device.attr, + &dev_attr_modalias.attr, + NULL, }; +ATTRIBUTE_GROUPS(sdio_dev); static const struct sdio_device_id *sdio_match_one(struct sdio_func *func, const struct sdio_device_id *id) @@ -225,7 +228,7 @@ static const struct dev_pm_ops sdio_bus_pm_ops = { static struct bus_type sdio_bus_type = { .name = "sdio", - .dev_attrs = sdio_dev_attrs, + .dev_groups = sdio_dev_groups, .match = sdio_bus_match, .uevent = sdio_bus_uevent, .probe = sdio_bus_probe, diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c index 06c5b0b28ebc..deecee08c288 100644 --- a/drivers/mmc/host/mvsdio.c +++ b/drivers/mmc/host/mvsdio.c @@ -655,7 +655,7 @@ static const struct mmc_host_ops mvsd_ops = { .enable_sdio_irq = mvsd_enable_sdio_irq, }; -static void __init +static void mv_conf_mbus_windows(struct mvsd_host *host, const struct mbus_dram_target_info *dram) { @@ -677,7 +677,7 @@ mv_conf_mbus_windows(struct mvsd_host *host, } } -static int __init mvsd_probe(struct platform_device *pdev) +static int mvsd_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct mmc_host *mmc = NULL; @@ -819,7 +819,7 @@ out: return ret; } -static int __exit mvsd_remove(struct platform_device *pdev) +static int mvsd_remove(struct platform_device *pdev) { struct mmc_host *mmc = platform_get_drvdata(pdev); @@ -872,7 +872,8 @@ static const struct of_device_id mvsdio_dt_ids[] = { MODULE_DEVICE_TABLE(of, mvsdio_dt_ids); static struct platform_driver mvsd_driver = { - .remove = __exit_p(mvsd_remove), + .probe = mvsd_probe, + .remove = mvsd_remove, .suspend = mvsd_suspend, .resume = mvsd_resume, .driver = { @@ -881,7 +882,7 @@ static struct platform_driver mvsd_driver = { }, }; -module_platform_driver_probe(mvsd_driver, mvsd_probe); +module_platform_driver(mvsd_driver); /* maximum card clock frequency (default 50MHz) */ module_param(maxfreq, int, 0); diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 26b14f9fcac6..6bc9618af094 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -168,12 +168,25 @@ static inline int write_disable(struct m25p *flash) */ static inline int set_4byte(struct m25p *flash, u32 jedec_id, int enable) { + int status; + bool need_wren = false; + switch (JEDEC_MFR(jedec_id)) { - case CFI_MFR_MACRONIX: case CFI_MFR_ST: /* Micron, actually */ + /* Some Micron need WREN command; all will accept it */ + need_wren = true; + case CFI_MFR_MACRONIX: case 0xEF /* winbond */: + if (need_wren) + write_enable(flash); + flash->command[0] = enable ? OPCODE_EN4B : OPCODE_EX4B; - return spi_write(flash->spi, flash->command, 1); + status = spi_write(flash->spi, flash->command, 1); + + if (need_wren) + write_disable(flash); + + return status; default: /* Spansion style */ flash->command[0] = OPCODE_BRWR; diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 060feeaf6b3e..bd1ce7d13702 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -1139,7 +1139,7 @@ static int pmecc_choose_ecc(struct atmel_nand_host *host, return 0; } -static int __init atmel_pmecc_nand_init_params(struct platform_device *pdev, +static int atmel_pmecc_nand_init_params(struct platform_device *pdev, struct atmel_nand_host *host) { struct mtd_info *mtd = &host->mtd; @@ -1548,7 +1548,7 @@ static int atmel_of_init_port(struct atmel_nand_host *host, } #endif -static int __init atmel_hw_nand_init_params(struct platform_device *pdev, +static int atmel_hw_nand_init_params(struct platform_device *pdev, struct atmel_nand_host *host) { struct mtd_info *mtd = &host->mtd; @@ -1987,7 +1987,7 @@ static struct platform_driver atmel_nand_nfc_driver; /* * Probe for the NAND device. */ -static int __init atmel_nand_probe(struct platform_device *pdev) +static int atmel_nand_probe(struct platform_device *pdev) { struct atmel_nand_host *host; struct mtd_info *mtd; @@ -2184,7 +2184,7 @@ err_nand_ioremap: /* * Remove a NAND device. */ -static int __exit atmel_nand_remove(struct platform_device *pdev) +static int atmel_nand_remove(struct platform_device *pdev) { struct atmel_nand_host *host = platform_get_drvdata(pdev); struct mtd_info *mtd = &host->mtd; @@ -2270,7 +2270,8 @@ static struct platform_driver atmel_nand_nfc_driver = { }; static struct platform_driver atmel_nand_driver = { - .remove = __exit_p(atmel_nand_remove), + .probe = atmel_nand_probe, + .remove = atmel_nand_remove, .driver = { .name = "atmel_nand", .owner = THIS_MODULE, @@ -2278,7 +2279,7 @@ static struct platform_driver atmel_nand_driver = { }, }; -module_platform_driver_probe(atmel_nand_driver, atmel_nand_probe); +module_platform_driver(atmel_nand_driver); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Rick Bronson"); diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 59ab0692f0b9..a9830ff8e3f3 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -349,7 +349,7 @@ static int legacy_set_geometry(struct gpmi_nand_data *this) int common_nfc_set_geometry(struct gpmi_nand_data *this) { - return set_geometry_by_ecc_info(this) ? 0 : legacy_set_geometry(this); + return legacy_set_geometry(this); } struct dma_chan *get_dma_chan(struct gpmi_nand_data *this) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 7ed4841327f2..d340b2f198c6 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2869,10 +2869,8 @@ static int nand_flash_detect_ext_param_page(struct mtd_info *mtd, len = le16_to_cpu(p->ext_param_page_length) * 16; ep = kmalloc(len, GFP_KERNEL); - if (!ep) { - ret = -ENOMEM; - goto ext_out; - } + if (!ep) + return -ENOMEM; /* Send our own NAND_CMD_PARAM. */ chip->cmdfunc(mtd, NAND_CMD_PARAM, 0, -1); @@ -2920,7 +2918,7 @@ static int nand_flash_detect_ext_param_page(struct mtd_info *mtd, } pr_info("ONFI extended param page detected.\n"); - return 0; + ret = 0; ext_out: kfree(ep); diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index dd03dfdfb0d6..c28d4e29af1a 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1320,7 +1320,12 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) for (cs = 0; cs < pdata->num_cs; cs++) { struct mtd_info *mtd = info->host[cs]->mtd; - mtd->name = pdev->name; + /* + * The mtd name matches the one used in 'mtdparts' kernel + * parameter. This name cannot be changed or otherwise + * user's mtd partitions configuration would get broken. + */ + mtd->name = "pxa3xx_nand-0"; info->cs = cs; ret = pxa3xx_nand_scan(mtd); if (ret) { diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index c29b836749b6..ec9b6460a38d 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -149,14 +149,6 @@ err_no_cmd: return -EPERM; } -static const void *bonding_namespace(struct class *cls, - const struct class_attribute *attr) -{ - const struct bond_net *bn = - container_of(attr, struct bond_net, class_attr_bonding_masters); - return bn->net; -} - /* class attribute for bond_masters file. This ends up in /sys/class/net */ static const struct class_attribute class_attr_bonding_masters = { .attr = { @@ -165,7 +157,6 @@ static const struct class_attribute class_attr_bonding_masters = { }, .show = bonding_show_bonds, .store = bonding_store_bonds, - .namespace = bonding_namespace, }; int bond_create_slave_symlinks(struct net_device *master, @@ -1787,7 +1778,8 @@ int bond_create_sysfs(struct bond_net *bn) bn->class_attr_bonding_masters = class_attr_bonding_masters; sysfs_attr_init(&bn->class_attr_bonding_masters.attr); - ret = netdev_class_create_file(&bn->class_attr_bonding_masters); + ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, + bn->net); /* * Permit multiple loads of the module by ignoring failures to * create the bonding_masters sysfs file. Bonding devices @@ -1817,7 +1809,7 @@ int bond_create_sysfs(struct bond_net *bn) */ void bond_destroy_sysfs(struct bond_net *bn) { - netdev_class_remove_file(&bn->class_attr_bonding_masters); + netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); } /* diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c index 3b1ff6148702..693d8ffe4653 100644 --- a/drivers/net/can/at91_can.c +++ b/drivers/net/can/at91_can.c @@ -1405,10 +1405,10 @@ static int at91_can_remove(struct platform_device *pdev) static const struct platform_device_id at91_can_id_table[] = { { - .name = "at91_can", + .name = "at91sam9x5_can", .driver_data = (kernel_ulong_t)&at91_at91sam9x5_data, }, { - .name = "at91sam9x5_can", + .name = "at91_can", .driver_data = (kernel_ulong_t)&at91_at91sam9263_data, }, { /* sentinel */ diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index a668cd491cb3..e3fc07cf2f62 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -814,9 +814,6 @@ static int c_can_do_rx_poll(struct net_device *dev, int quota) msg_ctrl_save = priv->read_reg(priv, C_CAN_IFACE(MSGCTRL_REG, 0)); - if (msg_ctrl_save & IF_MCONT_EOB) - return num_rx_pkts; - if (msg_ctrl_save & IF_MCONT_MSGLST) { c_can_handle_lost_msg_obj(dev, 0, msg_obj); num_rx_pkts++; @@ -824,6 +821,9 @@ static int c_can_do_rx_poll(struct net_device *dev, int quota) continue; } + if (msg_ctrl_save & IF_MCONT_EOB) + return num_rx_pkts; + if (!(msg_ctrl_save & IF_MCONT_NEWDAT)) continue; diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index f9cba4123c66..1870c4731a57 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -705,14 +705,14 @@ static size_t can_get_size(const struct net_device *dev) size_t size; size = nla_total_size(sizeof(u32)); /* IFLA_CAN_STATE */ - size += sizeof(struct can_ctrlmode); /* IFLA_CAN_CTRLMODE */ + size += nla_total_size(sizeof(struct can_ctrlmode)); /* IFLA_CAN_CTRLMODE */ size += nla_total_size(sizeof(u32)); /* IFLA_CAN_RESTART_MS */ - size += sizeof(struct can_bittiming); /* IFLA_CAN_BITTIMING */ - size += sizeof(struct can_clock); /* IFLA_CAN_CLOCK */ + size += nla_total_size(sizeof(struct can_bittiming)); /* IFLA_CAN_BITTIMING */ + size += nla_total_size(sizeof(struct can_clock)); /* IFLA_CAN_CLOCK */ if (priv->do_get_berr_counter) /* IFLA_CAN_BERR_COUNTER */ - size += sizeof(struct can_berr_counter); + size += nla_total_size(sizeof(struct can_berr_counter)); if (priv->bittiming_const) /* IFLA_CAN_BITTIMING_CONST */ - size += sizeof(struct can_bittiming_const); + size += nla_total_size(sizeof(struct can_bittiming_const)); return size; } diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 3f21142138b7..8f5ce747feb5 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -62,7 +62,7 @@ #define FLEXCAN_MCR_BCC BIT(16) #define FLEXCAN_MCR_LPRIO_EN BIT(13) #define FLEXCAN_MCR_AEN BIT(12) -#define FLEXCAN_MCR_MAXMB(x) ((x) & 0xf) +#define FLEXCAN_MCR_MAXMB(x) ((x) & 0x1f) #define FLEXCAN_MCR_IDAM_A (0 << 8) #define FLEXCAN_MCR_IDAM_B (1 << 8) #define FLEXCAN_MCR_IDAM_C (2 << 8) @@ -735,9 +735,11 @@ static int flexcan_chip_start(struct net_device *dev) * */ reg_mcr = flexcan_read(®s->mcr); + reg_mcr &= ~FLEXCAN_MCR_MAXMB(0xff); reg_mcr |= FLEXCAN_MCR_FRZ | FLEXCAN_MCR_FEN | FLEXCAN_MCR_HALT | FLEXCAN_MCR_SUPV | FLEXCAN_MCR_WRN_EN | - FLEXCAN_MCR_IDAM_C | FLEXCAN_MCR_SRX_DIS; + FLEXCAN_MCR_IDAM_C | FLEXCAN_MCR_SRX_DIS | + FLEXCAN_MCR_MAXMB(FLEXCAN_TX_BUF_ID); netdev_dbg(dev, "%s: writing mcr=0x%08x", __func__, reg_mcr); flexcan_write(reg_mcr, ®s->mcr); @@ -771,6 +773,10 @@ static int flexcan_chip_start(struct net_device *dev) netdev_dbg(dev, "%s: writing ctrl=0x%08x", __func__, reg_ctrl); flexcan_write(reg_ctrl, ®s->ctrl); + /* Abort any pending TX, mark Mailbox as INACTIVE */ + flexcan_write(FLEXCAN_MB_CNT_CODE(0x4), + ®s->cantxfg[FLEXCAN_TX_BUF_ID].can_ctrl); + /* acceptance mask/acceptance code (accept everything) */ flexcan_write(0x0, ®s->rxgmask); flexcan_write(0x0, ®s->rx14mask); @@ -979,9 +985,9 @@ static void unregister_flexcandev(struct net_device *dev) } static const struct of_device_id flexcan_of_match[] = { - { .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, }, - { .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, }, { .compatible = "fsl,imx6q-flexcan", .data = &fsl_imx6q_devtype_data, }, + { .compatible = "fsl,imx28-flexcan", .data = &fsl_imx28_devtype_data, }, + { .compatible = "fsl,p1010-flexcan", .data = &fsl_p1010_devtype_data, }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, flexcan_of_match); diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c index 3b9546588240..4b2d5ed62b11 100644 --- a/drivers/net/can/usb/kvaser_usb.c +++ b/drivers/net/can/usb/kvaser_usb.c @@ -1544,9 +1544,9 @@ static int kvaser_usb_init_one(struct usb_interface *intf, return 0; } -static void kvaser_usb_get_endpoints(const struct usb_interface *intf, - struct usb_endpoint_descriptor **in, - struct usb_endpoint_descriptor **out) +static int kvaser_usb_get_endpoints(const struct usb_interface *intf, + struct usb_endpoint_descriptor **in, + struct usb_endpoint_descriptor **out) { const struct usb_host_interface *iface_desc; struct usb_endpoint_descriptor *endpoint; @@ -1557,12 +1557,18 @@ static void kvaser_usb_get_endpoints(const struct usb_interface *intf, for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { endpoint = &iface_desc->endpoint[i].desc; - if (usb_endpoint_is_bulk_in(endpoint)) + if (!*in && usb_endpoint_is_bulk_in(endpoint)) *in = endpoint; - if (usb_endpoint_is_bulk_out(endpoint)) + if (!*out && usb_endpoint_is_bulk_out(endpoint)) *out = endpoint; + + /* use first bulk endpoint for in and out */ + if (*in && *out) + return 0; } + + return -ENODEV; } static int kvaser_usb_probe(struct usb_interface *intf, @@ -1576,8 +1582,8 @@ static int kvaser_usb_probe(struct usb_interface *intf, if (!dev) return -ENOMEM; - kvaser_usb_get_endpoints(intf, &dev->bulk_in, &dev->bulk_out); - if (!dev->bulk_in || !dev->bulk_out) { + err = kvaser_usb_get_endpoints(intf, &dev->bulk_in, &dev->bulk_out); + if (err) { dev_err(&intf->dev, "Cannot get usb endpoint(s)"); return err; } diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index 249468f95365..9e8a3e024e01 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -244,25 +244,33 @@ static int bgmac_dma_rx_skb_for_slot(struct bgmac *bgmac, struct bgmac_slot_info *slot) { struct device *dma_dev = bgmac->core->dma_dev; + struct sk_buff *skb; + dma_addr_t dma_addr; struct bgmac_rx_header *rx; /* Alloc skb */ - slot->skb = netdev_alloc_skb(bgmac->net_dev, BGMAC_RX_BUF_SIZE); - if (!slot->skb) + skb = netdev_alloc_skb(bgmac->net_dev, BGMAC_RX_BUF_SIZE); + if (!skb) return -ENOMEM; /* Poison - if everything goes fine, hardware will overwrite it */ - rx = (struct bgmac_rx_header *)slot->skb->data; + rx = (struct bgmac_rx_header *)skb->data; rx->len = cpu_to_le16(0xdead); rx->flags = cpu_to_le16(0xbeef); /* Map skb for the DMA */ - slot->dma_addr = dma_map_single(dma_dev, slot->skb->data, - BGMAC_RX_BUF_SIZE, DMA_FROM_DEVICE); - if (dma_mapping_error(dma_dev, slot->dma_addr)) { + dma_addr = dma_map_single(dma_dev, skb->data, + BGMAC_RX_BUF_SIZE, DMA_FROM_DEVICE); + if (dma_mapping_error(dma_dev, dma_addr)) { bgmac_err(bgmac, "DMA mapping error\n"); + dev_kfree_skb(skb); return -ENOMEM; } + + /* Update the slot */ + slot->skb = skb; + slot->dma_addr = dma_addr; + if (slot->dma_addr & 0xC0000000) bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n"); diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h index 97b3d32a98bd..c5e375ddd6c0 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h @@ -1197,8 +1197,9 @@ union cdu_context { /* TM (timers) host DB constants */ #define TM_ILT_PAGE_SZ_HW 0 #define TM_ILT_PAGE_SZ (4096 << TM_ILT_PAGE_SZ_HW) /* 4K */ -/* #define TM_CONN_NUM (CNIC_STARTING_CID+CNIC_ISCSI_CXT_MAX) */ -#define TM_CONN_NUM 1024 +#define TM_CONN_NUM (BNX2X_FIRST_VF_CID + \ + BNX2X_VF_CIDS + \ + CNIC_ISCSI_CID_MAX) #define TM_ILT_SZ (8 * TM_CONN_NUM) #define TM_ILT_LINES DIV_ROUND_UP(TM_ILT_SZ, TM_ILT_PAGE_SZ) @@ -1527,7 +1528,6 @@ struct bnx2x { #define PCI_32BIT_FLAG (1 << 1) #define ONE_PORT_FLAG (1 << 2) #define NO_WOL_FLAG (1 << 3) -#define USING_DAC_FLAG (1 << 4) #define USING_MSIX_FLAG (1 << 5) #define USING_MSI_FLAG (1 << 6) #define DISABLE_MSI_FLAG (1 << 7) @@ -1621,7 +1621,7 @@ struct bnx2x { u16 rx_ticks_int; u16 rx_ticks; /* Maximal coalescing timeout in us */ -#define BNX2X_MAX_COALESCE_TOUT (0xf0*12) +#define BNX2X_MAX_COALESCE_TOUT (0xff*BNX2X_BTR) u32 lin_cnt; @@ -2072,7 +2072,8 @@ u32 bnx2x_dmae_opcode(struct bnx2x *bp, u8 src_type, u8 dst_type, void bnx2x_prep_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae, u8 src_type, u8 dst_type); -int bnx2x_issue_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae); +int bnx2x_issue_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae, + u32 *comp); /* FLR related routines */ u32 bnx2x_flr_clnup_poll_count(struct bnx2x *bp); @@ -2498,4 +2499,8 @@ enum bnx2x_pci_bus_speed { }; void bnx2x_set_local_cmng(struct bnx2x *bp); + +#define MCPR_SCRATCH_BASE(bp) \ + (CHIP_IS_E1x(bp) ? MCP_REG_MCPR_SCRATCH : MCP_A_REG_MCPR_SCRATCH) + #endif /* bnx2x.h */ diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index e66beff2704d..74d6486fccfd 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -681,6 +681,7 @@ static void bnx2x_gro_receive(struct bnx2x *bp, struct bnx2x_fastpath *fp, } } #endif + skb_record_rx_queue(skb, fp->rx_queue); napi_gro_receive(&fp->napi, skb); } @@ -2544,10 +2545,6 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) } } - /* Allocated memory for FW statistics */ - if (bnx2x_alloc_fw_stats_mem(bp)) - LOAD_ERROR_EXIT(bp, load_error0); - /* need to be done after alloc mem, since it's self adjusting to amount * of memory available for RSS queues */ @@ -2557,6 +2554,10 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) LOAD_ERROR_EXIT(bp, load_error0); } + /* Allocated memory for FW statistics */ + if (bnx2x_alloc_fw_stats_mem(bp)) + LOAD_ERROR_EXIT(bp, load_error0); + /* request pf to initialize status blocks */ if (IS_VF(bp)) { rc = bnx2x_vfpf_init(bp); @@ -2811,8 +2812,8 @@ load_error1: if (IS_PF(bp)) bnx2x_clear_pf_load(bp); load_error0: - bnx2x_free_fp_mem(bp); bnx2x_free_fw_stats_mem(bp); + bnx2x_free_fp_mem(bp); bnx2x_free_mem(bp); return rc; diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c index 324de5f05332..e8efa1c93ffe 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c @@ -891,17 +891,8 @@ static void bnx2x_get_regs(struct net_device *dev, * will re-enable parity attentions right after the dump. */ - /* Disable parity on path 0 */ - bnx2x_pretend_func(bp, 0); bnx2x_disable_blocks_parity(bp); - /* Disable parity on path 1 */ - bnx2x_pretend_func(bp, 1); - bnx2x_disable_blocks_parity(bp); - - /* Return to current function */ - bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); - dump_hdr.header_size = (sizeof(struct dump_header) / 4) - 1; dump_hdr.preset = DUMP_ALL_PRESETS; dump_hdr.version = BNX2X_DUMP_VERSION; @@ -928,18 +919,9 @@ static void bnx2x_get_regs(struct net_device *dev, /* Actually read the registers */ __bnx2x_get_regs(bp, p); - /* Re-enable parity attentions on path 0 */ - bnx2x_pretend_func(bp, 0); + /* Re-enable parity attentions */ bnx2x_clear_blocks_parity(bp); bnx2x_enable_blocks_parity(bp); - - /* Re-enable parity attentions on path 1 */ - bnx2x_pretend_func(bp, 1); - bnx2x_clear_blocks_parity(bp); - bnx2x_enable_blocks_parity(bp); - - /* Return to current function */ - bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); } static int bnx2x_get_preset_regs_len(struct net_device *dev, u32 preset) @@ -993,17 +975,8 @@ static int bnx2x_get_dump_data(struct net_device *dev, * will re-enable parity attentions right after the dump. */ - /* Disable parity on path 0 */ - bnx2x_pretend_func(bp, 0); bnx2x_disable_blocks_parity(bp); - /* Disable parity on path 1 */ - bnx2x_pretend_func(bp, 1); - bnx2x_disable_blocks_parity(bp); - - /* Return to current function */ - bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); - dump_hdr.header_size = (sizeof(struct dump_header) / 4) - 1; dump_hdr.preset = bp->dump_preset_idx; dump_hdr.version = BNX2X_DUMP_VERSION; @@ -1032,19 +1005,10 @@ static int bnx2x_get_dump_data(struct net_device *dev, /* Actually read the registers */ __bnx2x_get_preset_regs(bp, p, dump_hdr.preset); - /* Re-enable parity attentions on path 0 */ - bnx2x_pretend_func(bp, 0); + /* Re-enable parity attentions */ bnx2x_clear_blocks_parity(bp); bnx2x_enable_blocks_parity(bp); - /* Re-enable parity attentions on path 1 */ - bnx2x_pretend_func(bp, 1); - bnx2x_clear_blocks_parity(bp); - bnx2x_enable_blocks_parity(bp); - - /* Return to current function */ - bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); - return 0; } diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_init.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_init.h index 76df015f486a..c2dfea7968f4 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_init.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_init.h @@ -640,23 +640,35 @@ static const struct { * [30] MCP Latched ump_tx_parity * [31] MCP Latched scpad_parity */ -#define MISC_AEU_ENABLE_MCP_PRTY_BITS \ +#define MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS \ (AEU_INPUTS_ATTN_BITS_MCP_LATCHED_ROM_PARITY | \ AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_RX_PARITY | \ - AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY | \ + AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY) + +#define MISC_AEU_ENABLE_MCP_PRTY_BITS \ + (MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS | \ AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY) /* Below registers control the MCP parity attention output. When * MISC_AEU_ENABLE_MCP_PRTY_BITS are set - attentions are * enabled, when cleared - disabled. */ -static const u32 mcp_attn_ctl_regs[] = { - MISC_REG_AEU_ENABLE4_FUNC_0_OUT_0, - MISC_REG_AEU_ENABLE4_NIG_0, - MISC_REG_AEU_ENABLE4_PXP_0, - MISC_REG_AEU_ENABLE4_FUNC_1_OUT_0, - MISC_REG_AEU_ENABLE4_NIG_1, - MISC_REG_AEU_ENABLE4_PXP_1 +static const struct { + u32 addr; + u32 bits; +} mcp_attn_ctl_regs[] = { + { MISC_REG_AEU_ENABLE4_FUNC_0_OUT_0, + MISC_AEU_ENABLE_MCP_PRTY_BITS }, + { MISC_REG_AEU_ENABLE4_NIG_0, + MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS }, + { MISC_REG_AEU_ENABLE4_PXP_0, + MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS }, + { MISC_REG_AEU_ENABLE4_FUNC_1_OUT_0, + MISC_AEU_ENABLE_MCP_PRTY_BITS }, + { MISC_REG_AEU_ENABLE4_NIG_1, + MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS }, + { MISC_REG_AEU_ENABLE4_PXP_1, + MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS } }; static inline void bnx2x_set_mcp_parity(struct bnx2x *bp, u8 enable) @@ -665,14 +677,14 @@ static inline void bnx2x_set_mcp_parity(struct bnx2x *bp, u8 enable) u32 reg_val; for (i = 0; i < ARRAY_SIZE(mcp_attn_ctl_regs); i++) { - reg_val = REG_RD(bp, mcp_attn_ctl_regs[i]); + reg_val = REG_RD(bp, mcp_attn_ctl_regs[i].addr); if (enable) - reg_val |= MISC_AEU_ENABLE_MCP_PRTY_BITS; + reg_val |= mcp_attn_ctl_regs[i].bits; else - reg_val &= ~MISC_AEU_ENABLE_MCP_PRTY_BITS; + reg_val &= ~mcp_attn_ctl_regs[i].bits; - REG_WR(bp, mcp_attn_ctl_regs[i], reg_val); + REG_WR(bp, mcp_attn_ctl_regs[i].addr, reg_val); } } diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 82b658d8c04c..b42f89ce02ef 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -503,9 +503,9 @@ void bnx2x_prep_dmae_with_comp(struct bnx2x *bp, } /* issue a dmae command over the init-channel and wait for completion */ -int bnx2x_issue_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae) +int bnx2x_issue_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae, + u32 *comp) { - u32 *wb_comp = bnx2x_sp(bp, wb_comp); int cnt = CHIP_REV_IS_SLOW(bp) ? (400000) : 4000; int rc = 0; @@ -518,14 +518,14 @@ int bnx2x_issue_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae) spin_lock_bh(&bp->dmae_lock); /* reset completion */ - *wb_comp = 0; + *comp = 0; /* post the command on the channel used for initializations */ bnx2x_post_dmae(bp, dmae, INIT_DMAE_C(bp)); /* wait for completion */ udelay(5); - while ((*wb_comp & ~DMAE_PCI_ERR_FLAG) != DMAE_COMP_VAL) { + while ((*comp & ~DMAE_PCI_ERR_FLAG) != DMAE_COMP_VAL) { if (!cnt || (bp->recovery_state != BNX2X_RECOVERY_DONE && @@ -537,7 +537,7 @@ int bnx2x_issue_dmae_with_comp(struct bnx2x *bp, struct dmae_command *dmae) cnt--; udelay(50); } - if (*wb_comp & DMAE_PCI_ERR_FLAG) { + if (*comp & DMAE_PCI_ERR_FLAG) { BNX2X_ERR("DMAE PCI error!\n"); rc = DMAE_PCI_ERROR; } @@ -574,7 +574,7 @@ void bnx2x_write_dmae(struct bnx2x *bp, dma_addr_t dma_addr, u32 dst_addr, dmae.len = len32; /* issue the command and wait for completion */ - rc = bnx2x_issue_dmae_with_comp(bp, &dmae); + rc = bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp)); if (rc) { BNX2X_ERR("DMAE returned failure %d\n", rc); bnx2x_panic(); @@ -611,7 +611,7 @@ void bnx2x_read_dmae(struct bnx2x *bp, u32 src_addr, u32 len32) dmae.len = len32; /* issue the command and wait for completion */ - rc = bnx2x_issue_dmae_with_comp(bp, &dmae); + rc = bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp)); if (rc) { BNX2X_ERR("DMAE returned failure %d\n", rc); bnx2x_panic(); @@ -751,6 +751,10 @@ static int bnx2x_mc_assert(struct bnx2x *bp) return rc; } +#define MCPR_TRACE_BUFFER_SIZE (0x800) +#define SCRATCH_BUFFER_SIZE(bp) \ + (CHIP_IS_E1(bp) ? 0x10000 : (CHIP_IS_E1H(bp) ? 0x20000 : 0x28000)) + void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl) { u32 addr, val; @@ -775,7 +779,17 @@ void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl) trace_shmem_base = bp->common.shmem_base; else trace_shmem_base = SHMEM2_RD(bp, other_shmem_base_addr); - addr = trace_shmem_base - 0x800; + + /* sanity */ + if (trace_shmem_base < MCPR_SCRATCH_BASE(bp) + MCPR_TRACE_BUFFER_SIZE || + trace_shmem_base >= MCPR_SCRATCH_BASE(bp) + + SCRATCH_BUFFER_SIZE(bp)) { + BNX2X_ERR("Unable to dump trace buffer (mark %x)\n", + trace_shmem_base); + return; + } + + addr = trace_shmem_base - MCPR_TRACE_BUFFER_SIZE; /* validate TRCB signature */ mark = REG_RD(bp, addr); @@ -787,14 +801,17 @@ void bnx2x_fw_dump_lvl(struct bnx2x *bp, const char *lvl) /* read cyclic buffer pointer */ addr += 4; mark = REG_RD(bp, addr); - mark = (CHIP_IS_E1x(bp) ? MCP_REG_MCPR_SCRATCH : MCP_A_REG_MCPR_SCRATCH) - + ((mark + 0x3) & ~0x3) - 0x08000000; + mark = MCPR_SCRATCH_BASE(bp) + ((mark + 0x3) & ~0x3) - 0x08000000; + if (mark >= trace_shmem_base || mark < addr + 4) { + BNX2X_ERR("Mark doesn't fall inside Trace Buffer\n"); + return; + } printk("%s" "begin fw dump (mark 0x%x)\n", lvl, mark); printk("%s", lvl); /* dump buffer after the mark */ - for (offset = mark; offset <= trace_shmem_base; offset += 0x8*4) { + for (offset = mark; offset < trace_shmem_base; offset += 0x8*4) { for (word = 0; word < 8; word++) data[word] = htonl(REG_RD(bp, offset + 4*word)); data[8] = 0x0; @@ -4280,65 +4297,60 @@ static void _print_next_block(int idx, const char *blk) pr_cont("%s%s", idx ? ", " : "", blk); } -static int bnx2x_check_blocks_with_parity0(struct bnx2x *bp, u32 sig, - int par_num, bool print) +static bool bnx2x_check_blocks_with_parity0(struct bnx2x *bp, u32 sig, + int *par_num, bool print) { - int i = 0; - u32 cur_bit = 0; + u32 cur_bit; + bool res; + int i; + + res = false; + for (i = 0; sig; i++) { - cur_bit = ((u32)0x1 << i); + cur_bit = (0x1UL << i); if (sig & cur_bit) { - switch (cur_bit) { - case AEU_INPUTS_ATTN_BITS_BRB_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "BRB"); + res |= true; /* Each bit is real error! */ + + if (print) { + switch (cur_bit) { + case AEU_INPUTS_ATTN_BITS_BRB_PARITY_ERROR: + _print_next_block((*par_num)++, "BRB"); _print_parity(bp, BRB1_REG_BRB1_PRTY_STS); - } - break; - case AEU_INPUTS_ATTN_BITS_PARSER_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "PARSER"); + break; + case AEU_INPUTS_ATTN_BITS_PARSER_PARITY_ERROR: + _print_next_block((*par_num)++, + "PARSER"); _print_parity(bp, PRS_REG_PRS_PRTY_STS); - } - break; - case AEU_INPUTS_ATTN_BITS_TSDM_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "TSDM"); + break; + case AEU_INPUTS_ATTN_BITS_TSDM_PARITY_ERROR: + _print_next_block((*par_num)++, "TSDM"); _print_parity(bp, TSDM_REG_TSDM_PRTY_STS); - } - break; - case AEU_INPUTS_ATTN_BITS_SEARCHER_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, + break; + case AEU_INPUTS_ATTN_BITS_SEARCHER_PARITY_ERROR: + _print_next_block((*par_num)++, "SEARCHER"); _print_parity(bp, SRC_REG_SRC_PRTY_STS); - } - break; - case AEU_INPUTS_ATTN_BITS_TCM_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "TCM"); - _print_parity(bp, - TCM_REG_TCM_PRTY_STS); - } - break; - case AEU_INPUTS_ATTN_BITS_TSEMI_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "TSEMI"); + break; + case AEU_INPUTS_ATTN_BITS_TCM_PARITY_ERROR: + _print_next_block((*par_num)++, "TCM"); + _print_parity(bp, TCM_REG_TCM_PRTY_STS); + break; + case AEU_INPUTS_ATTN_BITS_TSEMI_PARITY_ERROR: + _print_next_block((*par_num)++, + "TSEMI"); _print_parity(bp, TSEM_REG_TSEM_PRTY_STS_0); _print_parity(bp, TSEM_REG_TSEM_PRTY_STS_1); - } - break; - case AEU_INPUTS_ATTN_BITS_PBCLIENT_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "XPB"); + break; + case AEU_INPUTS_ATTN_BITS_PBCLIENT_PARITY_ERROR: + _print_next_block((*par_num)++, "XPB"); _print_parity(bp, GRCBASE_XPB + PB_REG_PB_PRTY_STS); + break; } - break; } /* Clear the bit */ @@ -4346,53 +4358,59 @@ static int bnx2x_check_blocks_with_parity0(struct bnx2x *bp, u32 sig, } } - return par_num; + return res; } -static int bnx2x_check_blocks_with_parity1(struct bnx2x *bp, u32 sig, - int par_num, bool *global, +static bool bnx2x_check_blocks_with_parity1(struct bnx2x *bp, u32 sig, + int *par_num, bool *global, bool print) { - int i = 0; - u32 cur_bit = 0; + u32 cur_bit; + bool res; + int i; + + res = false; + for (i = 0; sig; i++) { - cur_bit = ((u32)0x1 << i); + cur_bit = (0x1UL << i); if (sig & cur_bit) { + res |= true; /* Each bit is real error! */ switch (cur_bit) { case AEU_INPUTS_ATTN_BITS_PBF_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "PBF"); + _print_next_block((*par_num)++, "PBF"); _print_parity(bp, PBF_REG_PBF_PRTY_STS); } break; case AEU_INPUTS_ATTN_BITS_QM_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "QM"); + _print_next_block((*par_num)++, "QM"); _print_parity(bp, QM_REG_QM_PRTY_STS); } break; case AEU_INPUTS_ATTN_BITS_TIMERS_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "TM"); + _print_next_block((*par_num)++, "TM"); _print_parity(bp, TM_REG_TM_PRTY_STS); } break; case AEU_INPUTS_ATTN_BITS_XSDM_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "XSDM"); + _print_next_block((*par_num)++, "XSDM"); _print_parity(bp, XSDM_REG_XSDM_PRTY_STS); } break; case AEU_INPUTS_ATTN_BITS_XCM_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "XCM"); + _print_next_block((*par_num)++, "XCM"); _print_parity(bp, XCM_REG_XCM_PRTY_STS); } break; case AEU_INPUTS_ATTN_BITS_XSEMI_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "XSEMI"); + _print_next_block((*par_num)++, + "XSEMI"); _print_parity(bp, XSEM_REG_XSEM_PRTY_STS_0); _print_parity(bp, @@ -4401,7 +4419,7 @@ static int bnx2x_check_blocks_with_parity1(struct bnx2x *bp, u32 sig, break; case AEU_INPUTS_ATTN_BITS_DOORBELLQ_PARITY_ERROR: if (print) { - _print_next_block(par_num++, + _print_next_block((*par_num)++, "DOORBELLQ"); _print_parity(bp, DORQ_REG_DORQ_PRTY_STS); @@ -4409,7 +4427,7 @@ static int bnx2x_check_blocks_with_parity1(struct bnx2x *bp, u32 sig, break; case AEU_INPUTS_ATTN_BITS_NIG_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "NIG"); + _print_next_block((*par_num)++, "NIG"); if (CHIP_IS_E1x(bp)) { _print_parity(bp, NIG_REG_NIG_PRTY_STS); @@ -4423,32 +4441,34 @@ static int bnx2x_check_blocks_with_parity1(struct bnx2x *bp, u32 sig, break; case AEU_INPUTS_ATTN_BITS_VAUX_PCI_CORE_PARITY_ERROR: if (print) - _print_next_block(par_num++, + _print_next_block((*par_num)++, "VAUX PCI CORE"); *global = true; break; case AEU_INPUTS_ATTN_BITS_DEBUG_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "DEBUG"); + _print_next_block((*par_num)++, + "DEBUG"); _print_parity(bp, DBG_REG_DBG_PRTY_STS); } break; case AEU_INPUTS_ATTN_BITS_USDM_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "USDM"); + _print_next_block((*par_num)++, "USDM"); _print_parity(bp, USDM_REG_USDM_PRTY_STS); } break; case AEU_INPUTS_ATTN_BITS_UCM_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "UCM"); + _print_next_block((*par_num)++, "UCM"); _print_parity(bp, UCM_REG_UCM_PRTY_STS); } break; case AEU_INPUTS_ATTN_BITS_USEMI_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "USEMI"); + _print_next_block((*par_num)++, + "USEMI"); _print_parity(bp, USEM_REG_USEM_PRTY_STS_0); _print_parity(bp, @@ -4457,21 +4477,21 @@ static int bnx2x_check_blocks_with_parity1(struct bnx2x *bp, u32 sig, break; case AEU_INPUTS_ATTN_BITS_UPB_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "UPB"); + _print_next_block((*par_num)++, "UPB"); _print_parity(bp, GRCBASE_UPB + PB_REG_PB_PRTY_STS); } break; case AEU_INPUTS_ATTN_BITS_CSDM_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "CSDM"); + _print_next_block((*par_num)++, "CSDM"); _print_parity(bp, CSDM_REG_CSDM_PRTY_STS); } break; case AEU_INPUTS_ATTN_BITS_CCM_PARITY_ERROR: if (print) { - _print_next_block(par_num++, "CCM"); + _print_next_block((*par_num)++, "CCM"); _print_parity(bp, CCM_REG_CCM_PRTY_STS); } break; @@ -4482,80 +4502,73 @@ static int bnx2x_check_blocks_with_parity1(struct bnx2x *bp, u32 sig, } } - return par_num; + return res; } -static int bnx2x_check_blocks_with_parity2(struct bnx2x *bp, u32 sig, - int par_num, bool print) +static bool bnx2x_check_blocks_with_parity2(struct bnx2x *bp, u32 sig, + int *par_num, bool print) { - int i = 0; - u32 cur_bit = 0; + u32 cur_bit; + bool res; + int i; + + res = false; + for (i = 0; sig; i++) { - cur_bit = ((u32)0x1 << i); + cur_bit = (0x1UL << i); if (sig & cur_bit) { - switch (cur_bit) { - case AEU_INPUTS_ATTN_BITS_CSEMI_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "CSEMI"); + res |= true; /* Each bit is real error! */ + if (print) { + switch (cur_bit) { + case AEU_INPUTS_ATTN_BITS_CSEMI_PARITY_ERROR: + _print_next_block((*par_num)++, + "CSEMI"); _print_parity(bp, CSEM_REG_CSEM_PRTY_STS_0); _print_parity(bp, CSEM_REG_CSEM_PRTY_STS_1); - } - break; - case AEU_INPUTS_ATTN_BITS_PXP_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "PXP"); + break; + case AEU_INPUTS_ATTN_BITS_PXP_PARITY_ERROR: + _print_next_block((*par_num)++, "PXP"); _print_parity(bp, PXP_REG_PXP_PRTY_STS); _print_parity(bp, PXP2_REG_PXP2_PRTY_STS_0); _print_parity(bp, PXP2_REG_PXP2_PRTY_STS_1); - } - break; - case AEU_IN_ATTN_BITS_PXPPCICLOCKCLIENT_PARITY_ERROR: - if (print) - _print_next_block(par_num++, - "PXPPCICLOCKCLIENT"); - break; - case AEU_INPUTS_ATTN_BITS_CFC_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "CFC"); + break; + case AEU_IN_ATTN_BITS_PXPPCICLOCKCLIENT_PARITY_ERROR: + _print_next_block((*par_num)++, + "PXPPCICLOCKCLIENT"); + break; + case AEU_INPUTS_ATTN_BITS_CFC_PARITY_ERROR: + _print_next_block((*par_num)++, "CFC"); _print_parity(bp, CFC_REG_CFC_PRTY_STS); - } - break; - case AEU_INPUTS_ATTN_BITS_CDU_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "CDU"); + break; + case AEU_INPUTS_ATTN_BITS_CDU_PARITY_ERROR: + _print_next_block((*par_num)++, "CDU"); _print_parity(bp, CDU_REG_CDU_PRTY_STS); - } - break; - case AEU_INPUTS_ATTN_BITS_DMAE_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "DMAE"); + break; + case AEU_INPUTS_ATTN_BITS_DMAE_PARITY_ERROR: + _print_next_block((*par_num)++, "DMAE"); _print_parity(bp, DMAE_REG_DMAE_PRTY_STS); - } - break; - case AEU_INPUTS_ATTN_BITS_IGU_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "IGU"); + break; + case AEU_INPUTS_ATTN_BITS_IGU_PARITY_ERROR: + _print_next_block((*par_num)++, "IGU"); if (CHIP_IS_E1x(bp)) _print_parity(bp, HC_REG_HC_PRTY_STS); else _print_parity(bp, IGU_REG_IGU_PRTY_STS); - } - break; - case AEU_INPUTS_ATTN_BITS_MISC_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "MISC"); + break; + case AEU_INPUTS_ATTN_BITS_MISC_PARITY_ERROR: + _print_next_block((*par_num)++, "MISC"); _print_parity(bp, MISC_REG_MISC_PRTY_STS); + break; } - break; } /* Clear the bit */ @@ -4563,40 +4576,49 @@ static int bnx2x_check_blocks_with_parity2(struct bnx2x *bp, u32 sig, } } - return par_num; + return res; } -static int bnx2x_check_blocks_with_parity3(u32 sig, int par_num, - bool *global, bool print) +static bool bnx2x_check_blocks_with_parity3(struct bnx2x *bp, u32 sig, + int *par_num, bool *global, + bool print) { - int i = 0; - u32 cur_bit = 0; + bool res = false; + u32 cur_bit; + int i; + for (i = 0; sig; i++) { - cur_bit = ((u32)0x1 << i); + cur_bit = (0x1UL << i); if (sig & cur_bit) { switch (cur_bit) { case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_ROM_PARITY: if (print) - _print_next_block(par_num++, "MCP ROM"); + _print_next_block((*par_num)++, + "MCP ROM"); *global = true; + res |= true; break; case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_RX_PARITY: if (print) - _print_next_block(par_num++, + _print_next_block((*par_num)++, "MCP UMP RX"); *global = true; + res |= true; break; case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY: if (print) - _print_next_block(par_num++, + _print_next_block((*par_num)++, "MCP UMP TX"); *global = true; + res |= true; break; case AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY: if (print) - _print_next_block(par_num++, + _print_next_block((*par_num)++, "MCP SCPAD"); - *global = true; + /* clear latched SCPAD PATIRY from MCP */ + REG_WR(bp, MISC_REG_AEU_CLR_LATCH_SIGNAL, + 1UL << 10); break; } @@ -4605,45 +4627,50 @@ static int bnx2x_check_blocks_with_parity3(u32 sig, int par_num, } } - return par_num; + return res; } -static int bnx2x_check_blocks_with_parity4(struct bnx2x *bp, u32 sig, - int par_num, bool print) +static bool bnx2x_check_blocks_with_parity4(struct bnx2x *bp, u32 sig, + int *par_num, bool print) { - int i = 0; - u32 cur_bit = 0; + u32 cur_bit; + bool res; + int i; + + res = false; + for (i = 0; sig; i++) { - cur_bit = ((u32)0x1 << i); + cur_bit = (0x1UL << i); if (sig & cur_bit) { - switch (cur_bit) { - case AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "PGLUE_B"); + res |= true; /* Each bit is real error! */ + if (print) { + switch (cur_bit) { + case AEU_INPUTS_ATTN_BITS_PGLUE_PARITY_ERROR: + _print_next_block((*par_num)++, + "PGLUE_B"); _print_parity(bp, - PGLUE_B_REG_PGLUE_B_PRTY_STS); - } - break; - case AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR: - if (print) { - _print_next_block(par_num++, "ATC"); + PGLUE_B_REG_PGLUE_B_PRTY_STS); + break; + case AEU_INPUTS_ATTN_BITS_ATC_PARITY_ERROR: + _print_next_block((*par_num)++, "ATC"); _print_parity(bp, ATC_REG_ATC_PRTY_STS); + break; } - break; } - /* Clear the bit */ sig &= ~cur_bit; } } - return par_num; + return res; } static bool bnx2x_parity_attn(struct bnx2x *bp, bool *global, bool print, u32 *sig) { + bool res = false; + if ((sig[0] & HW_PRTY_ASSERT_SET_0) || (sig[1] & HW_PRTY_ASSERT_SET_1) || (sig[2] & HW_PRTY_ASSERT_SET_2) || @@ -4660,23 +4687,22 @@ static bool bnx2x_parity_attn(struct bnx2x *bp, bool *global, bool print, if (print) netdev_err(bp->dev, "Parity errors detected in blocks: "); - par_num = bnx2x_check_blocks_with_parity0(bp, - sig[0] & HW_PRTY_ASSERT_SET_0, par_num, print); - par_num = bnx2x_check_blocks_with_parity1(bp, - sig[1] & HW_PRTY_ASSERT_SET_1, par_num, global, print); - par_num = bnx2x_check_blocks_with_parity2(bp, - sig[2] & HW_PRTY_ASSERT_SET_2, par_num, print); - par_num = bnx2x_check_blocks_with_parity3( - sig[3] & HW_PRTY_ASSERT_SET_3, par_num, global, print); - par_num = bnx2x_check_blocks_with_parity4(bp, - sig[4] & HW_PRTY_ASSERT_SET_4, par_num, print); + res |= bnx2x_check_blocks_with_parity0(bp, + sig[0] & HW_PRTY_ASSERT_SET_0, &par_num, print); + res |= bnx2x_check_blocks_with_parity1(bp, + sig[1] & HW_PRTY_ASSERT_SET_1, &par_num, global, print); + res |= bnx2x_check_blocks_with_parity2(bp, + sig[2] & HW_PRTY_ASSERT_SET_2, &par_num, print); + res |= bnx2x_check_blocks_with_parity3(bp, + sig[3] & HW_PRTY_ASSERT_SET_3, &par_num, global, print); + res |= bnx2x_check_blocks_with_parity4(bp, + sig[4] & HW_PRTY_ASSERT_SET_4, &par_num, print); if (print) pr_cont("\n"); + } - return true; - } else - return false; + return res; } /** @@ -7126,7 +7152,7 @@ static int bnx2x_init_hw_port(struct bnx2x *bp) int port = BP_PORT(bp); int init_phase = port ? PHASE_PORT1 : PHASE_PORT0; u32 low, high; - u32 val; + u32 val, reg; DP(NETIF_MSG_HW, "starting port init port %d\n", port); @@ -7271,6 +7297,17 @@ static int bnx2x_init_hw_port(struct bnx2x *bp) val |= CHIP_IS_E1(bp) ? 0 : 0x10; REG_WR(bp, MISC_REG_AEU_MASK_ATTN_FUNC_0 + port*4, val); + /* SCPAD_PARITY should NOT trigger close the gates */ + reg = port ? MISC_REG_AEU_ENABLE4_NIG_1 : MISC_REG_AEU_ENABLE4_NIG_0; + REG_WR(bp, reg, + REG_RD(bp, reg) & + ~AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY); + + reg = port ? MISC_REG_AEU_ENABLE4_PXP_1 : MISC_REG_AEU_ENABLE4_PXP_0; + REG_WR(bp, reg, + REG_RD(bp, reg) & + ~AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY); + bnx2x_init_block(bp, BLOCK_NIG, init_phase); if (!CHIP_IS_E1x(bp)) { @@ -11685,9 +11722,6 @@ static int bnx2x_init_bp(struct bnx2x *bp) static int bnx2x_open(struct net_device *dev) { struct bnx2x *bp = netdev_priv(dev); - bool global = false; - int other_engine = BP_PATH(bp) ? 0 : 1; - bool other_load_status, load_status; int rc; bp->stats_init = true; @@ -11703,6 +11737,10 @@ static int bnx2x_open(struct net_device *dev) * Parity recovery is only relevant for PF driver. */ if (IS_PF(bp)) { + int other_engine = BP_PATH(bp) ? 0 : 1; + bool other_load_status, load_status; + bool global = false; + other_load_status = bnx2x_get_load_status(bp, other_engine); load_status = bnx2x_get_load_status(bp, BP_PATH(bp)); if (!bnx2x_reset_is_done(bp, BP_PATH(bp)) || @@ -12080,7 +12118,6 @@ static int bnx2x_set_coherency_mask(struct bnx2x *bp) struct device *dev = &bp->pdev->dev; if (dma_set_mask(dev, DMA_BIT_MASK(64)) == 0) { - bp->flags |= USING_DAC_FLAG; if (dma_set_coherent_mask(dev, DMA_BIT_MASK(64)) != 0) { dev_err(dev, "dma_set_coherent_mask failed, aborting\n"); return -EIO; @@ -12248,8 +12285,7 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev, NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_HIGHDMA; dev->features |= dev->hw_features | NETIF_F_HW_VLAN_CTAG_RX; - if (bp->flags & USING_DAC_FLAG) - dev->features |= NETIF_F_HIGHDMA; + dev->features |= NETIF_F_HIGHDMA; /* Add Loopback capability to the device */ dev->hw_features |= NETIF_F_LOOPBACK; @@ -12612,24 +12648,24 @@ static int set_max_cos_est(int chip_id) return BNX2X_MULTI_TX_COS_E1X; case BCM57712: case BCM57712_MF: - case BCM57712_VF: return BNX2X_MULTI_TX_COS_E2_E3A0; case BCM57800: case BCM57800_MF: - case BCM57800_VF: case BCM57810: case BCM57810_MF: case BCM57840_4_10: case BCM57840_2_20: case BCM57840_O: case BCM57840_MFO: - case BCM57810_VF: case BCM57840_MF: - case BCM57840_VF: case BCM57811: case BCM57811_MF: - case BCM57811_VF: return BNX2X_MULTI_TX_COS_E3B0; + case BCM57712_VF: + case BCM57800_VF: + case BCM57810_VF: + case BCM57840_VF: + case BCM57811_VF: return 1; default: pr_err("Unknown board_type (%d), aborting\n", chip_id); diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c index 9ad012bdd915..5e07efb6ec13 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c @@ -470,10 +470,10 @@ static int bnx2x_vfop_qdtor_cmd(struct bnx2x *bp, bnx2x_vfop_qdtor, cmd->done); return bnx2x_vfop_transition(bp, vf, bnx2x_vfop_qdtor, cmd->block); + } else { + BNX2X_ERR("VF[%d] failed to add a vfop\n", vf->abs_vfid); + return -ENOMEM; } - DP(BNX2X_MSG_IOV, "VF[%d] failed to add a vfop. rc %d\n", - vf->abs_vfid, vfop->rc); - return -ENOMEM; } static void @@ -2018,6 +2018,8 @@ failed: void bnx2x_iov_remove_one(struct bnx2x *bp) { + int vf_idx; + /* if SRIOV is not enabled there's nothing to do */ if (!IS_SRIOV(bp)) return; @@ -2026,6 +2028,18 @@ void bnx2x_iov_remove_one(struct bnx2x *bp) pci_disable_sriov(bp->pdev); DP(BNX2X_MSG_IOV, "sriov disabled\n"); + /* disable access to all VFs */ + for (vf_idx = 0; vf_idx < bp->vfdb->sriov.total; vf_idx++) { + bnx2x_pretend_func(bp, + HW_VF_HANDLE(bp, + bp->vfdb->sriov.first_vf_in_pf + + vf_idx)); + DP(BNX2X_MSG_IOV, "disabling internal access for vf %d\n", + bp->vfdb->sriov.first_vf_in_pf + vf_idx); + bnx2x_vf_enable_internal(bp, 0); + bnx2x_pretend_func(bp, BP_ABS_FUNC(bp)); + } + /* free vf database */ __bnx2x_iov_free_vfdb(bp); } @@ -3197,7 +3211,7 @@ int bnx2x_enable_sriov(struct bnx2x *bp) * the "acquire" messages to appear on the VF PF channel. */ DP(BNX2X_MSG_IOV, "about to call enable sriov\n"); - pci_disable_sriov(bp->pdev); + bnx2x_disable_sriov(bp); rc = pci_enable_sriov(bp->pdev, req_vfs); if (rc) { BNX2X_ERR("pci_enable_sriov failed with %d\n", rc); @@ -3390,14 +3404,16 @@ int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac) rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_ETH_MAC, true); if (rc) { BNX2X_ERR("failed to delete eth macs\n"); - return -EINVAL; + rc = -EINVAL; + goto out; } /* remove existing uc list macs */ rc = bnx2x_del_all_macs(bp, mac_obj, BNX2X_UC_LIST_MAC, true); if (rc) { BNX2X_ERR("failed to delete uc_list macs\n"); - return -EINVAL; + rc = -EINVAL; + goto out; } /* configure the new mac to device */ @@ -3405,6 +3421,7 @@ int bnx2x_set_vf_mac(struct net_device *dev, int vfidx, u8 *mac) bnx2x_set_mac_one(bp, (u8 *)&bulletin->mac, mac_obj, true, BNX2X_ETH_MAC, &ramrod_flags); +out: bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_MAC); } @@ -3467,7 +3484,8 @@ int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos) &ramrod_flags); if (rc) { BNX2X_ERR("failed to delete vlans\n"); - return -EINVAL; + rc = -EINVAL; + goto out; } /* send queue update ramrod to configure default vlan and silent @@ -3501,7 +3519,8 @@ int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos) rc = bnx2x_config_vlan_mac(bp, &ramrod_param); if (rc) { BNX2X_ERR("failed to configure vlan\n"); - return -EINVAL; + rc = -EINVAL; + goto out; } /* configure default vlan to vf queue and set silent @@ -3519,18 +3538,18 @@ int bnx2x_set_vf_vlan(struct net_device *dev, int vfidx, u16 vlan, u8 qos) rc = bnx2x_queue_state_change(bp, &q_params); if (rc) { BNX2X_ERR("Failed to configure default VLAN\n"); - return rc; + goto out; } /* clear the flag indicating that this VF needs its vlan - * (will only be set if the HV configured th Vlan before vf was - * and we were called because the VF came up later + * (will only be set if the HV configured the Vlan before vf was + * up and we were called because the VF came up later */ +out: vf->cfg_flags &= ~VF_CFG_VLAN; - bnx2x_unlock_vf_pf_channel(bp, vf, CHANNEL_TLV_PF_SET_VLAN); } - return 0; + return rc; } /* crc is the first field in the bulletin board. Compute the crc over the diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c index 86436c77af03..3b75070411aa 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c @@ -196,7 +196,7 @@ static void bnx2x_hw_stats_post(struct bnx2x *bp) } else if (bp->func_stx) { *stats_comp = 0; - bnx2x_post_dmae(bp, dmae, INIT_DMAE_C(bp)); + bnx2x_issue_dmae_with_comp(bp, dmae, stats_comp); } } diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c index da16953eb2ec..28757dfacf0d 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c @@ -980,7 +980,7 @@ static int bnx2x_copy32_vf_dmae(struct bnx2x *bp, u8 from_vf, dmae.len = len32; /* issue the command and wait for completion */ - return bnx2x_issue_dmae_with_comp(bp, &dmae); + return bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp)); } static void bnx2x_vf_mbx_resp(struct bnx2x *bp, struct bnx2x_virtf *vf) diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c index 78d6d6b970e1..48f52882a22b 100644 --- a/drivers/net/ethernet/calxeda/xgmac.c +++ b/drivers/net/ethernet/calxeda/xgmac.c @@ -106,7 +106,6 @@ #define XGMAC_DMA_HW_FEATURE 0x00000f58 /* Enabled Hardware Features */ #define XGMAC_ADDR_AE 0x80000000 -#define XGMAC_MAX_FILTER_ADDR 31 /* PMT Control and Status */ #define XGMAC_PMT_POINTER_RESET 0x80000000 @@ -384,6 +383,7 @@ struct xgmac_priv { struct device *device; struct napi_struct napi; + int max_macs; struct xgmac_extra_stats xstats; spinlock_t stats_lock; @@ -1291,14 +1291,12 @@ static void xgmac_set_rx_mode(struct net_device *dev) netdev_dbg(priv->dev, "# mcasts %d, # unicast %d\n", netdev_mc_count(dev), netdev_uc_count(dev)); - if (dev->flags & IFF_PROMISC) { - writel(XGMAC_FRAME_FILTER_PR, ioaddr + XGMAC_FRAME_FILTER); - return; - } + if (dev->flags & IFF_PROMISC) + value |= XGMAC_FRAME_FILTER_PR; memset(hash_filter, 0, sizeof(hash_filter)); - if (netdev_uc_count(dev) > XGMAC_MAX_FILTER_ADDR) { + if (netdev_uc_count(dev) > priv->max_macs) { use_hash = true; value |= XGMAC_FRAME_FILTER_HUC | XGMAC_FRAME_FILTER_HPF; } @@ -1321,7 +1319,7 @@ static void xgmac_set_rx_mode(struct net_device *dev) goto out; } - if ((netdev_mc_count(dev) + reg - 1) > XGMAC_MAX_FILTER_ADDR) { + if ((netdev_mc_count(dev) + reg - 1) > priv->max_macs) { use_hash = true; value |= XGMAC_FRAME_FILTER_HMC | XGMAC_FRAME_FILTER_HPF; } else { @@ -1342,8 +1340,8 @@ static void xgmac_set_rx_mode(struct net_device *dev) } out: - for (i = reg; i < XGMAC_MAX_FILTER_ADDR; i++) - xgmac_set_mac_addr(ioaddr, NULL, reg); + for (i = reg; i <= priv->max_macs; i++) + xgmac_set_mac_addr(ioaddr, NULL, i); for (i = 0; i < XGMAC_NUM_HASH; i++) writel(hash_filter[i], ioaddr + XGMAC_HASH(i)); @@ -1761,6 +1759,13 @@ static int xgmac_probe(struct platform_device *pdev) uid = readl(priv->base + XGMAC_VERSION); netdev_info(ndev, "h/w version is 0x%x\n", uid); + /* Figure out how many valid mac address filter registers we have */ + writel(1, priv->base + XGMAC_ADDR_HIGH(31)); + if (readl(priv->base + XGMAC_ADDR_HIGH(31)) == 1) + priv->max_macs = 31; + else + priv->max_macs = 7; + writel(0, priv->base + XGMAC_DMA_INTR_ENA); ndev->irq = platform_get_irq(pdev, 0); if (ndev->irq == -ENXIO) { diff --git a/drivers/net/ethernet/chelsio/cxgb3/sge.c b/drivers/net/ethernet/chelsio/cxgb3/sge.c index 9c89dc8fe105..632b318eb38a 100644 --- a/drivers/net/ethernet/chelsio/cxgb3/sge.c +++ b/drivers/net/ethernet/chelsio/cxgb3/sge.c @@ -1599,7 +1599,8 @@ static void write_ofld_wr(struct adapter *adap, struct sk_buff *skb, flits = skb_transport_offset(skb) / 8; sgp = ndesc == 1 ? (struct sg_ent *)&d->flit[flits] : sgl; sgl_flits = make_sgl(skb, sgp, skb_transport_header(skb), - skb->tail - skb->transport_header, + skb_tail_pointer(skb) - + skb_transport_header(skb), adap->pdev); if (need_skb_unmap()) { setup_deferred_unmapping(skb, adap->pdev, sgp, sgl_flits); diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c index 5f5896e522d2..a7a941b1a655 100644 --- a/drivers/net/ethernet/davicom/dm9000.c +++ b/drivers/net/ethernet/davicom/dm9000.c @@ -158,18 +158,6 @@ static inline board_info_t *to_dm9000_board(struct net_device *dev) /* DM9000 network board routine ---------------------------- */ -static void -dm9000_reset(board_info_t * db) -{ - dev_dbg(db->dev, "resetting device\n"); - - /* RESET device */ - writeb(DM9000_NCR, db->io_addr); - udelay(200); - writeb(NCR_RST, db->io_data); - udelay(200); -} - /* * Read a byte from I/O port */ @@ -191,6 +179,27 @@ iow(board_info_t * db, int reg, int value) writeb(value, db->io_data); } +static void +dm9000_reset(board_info_t *db) +{ + dev_dbg(db->dev, "resetting device\n"); + + /* Reset DM9000, see DM9000 Application Notes V1.22 Jun 11, 2004 page 29 + * The essential point is that we have to do a double reset, and the + * instruction is to set LBK into MAC internal loopback mode. + */ + iow(db, DM9000_NCR, 0x03); + udelay(100); /* Application note says at least 20 us */ + if (ior(db, DM9000_NCR) & 1) + dev_err(db->dev, "dm9000 did not respond to first reset\n"); + + iow(db, DM9000_NCR, 0); + iow(db, DM9000_NCR, 0x03); + udelay(100); + if (ior(db, DM9000_NCR) & 1) + dev_err(db->dev, "dm9000 did not respond to second reset\n"); +} + /* routines for sending block to chip */ static void dm9000_outblk_8bit(void __iomem *reg, void *data, int count) @@ -744,15 +753,20 @@ static const struct ethtool_ops dm9000_ethtool_ops = { static void dm9000_show_carrier(board_info_t *db, unsigned carrier, unsigned nsr) { + int lpa; struct net_device *ndev = db->ndev; + struct mii_if_info *mii = &db->mii; unsigned ncr = dm9000_read_locked(db, DM9000_NCR); - if (carrier) - dev_info(db->dev, "%s: link up, %dMbps, %s-duplex, no LPA\n", + if (carrier) { + lpa = mii->mdio_read(mii->dev, mii->phy_id, MII_LPA); + dev_info(db->dev, + "%s: link up, %dMbps, %s-duplex, lpa 0x%04X\n", ndev->name, (nsr & NSR_SPEED) ? 10 : 100, - (ncr & NCR_FDX) ? "full" : "half"); - else + (ncr & NCR_FDX) ? "full" : "half", lpa); + } else { dev_info(db->dev, "%s: link down\n", ndev->name); + } } static void @@ -890,9 +904,15 @@ dm9000_init_dm9000(struct net_device *dev) (dev->features & NETIF_F_RXCSUM) ? RCSR_CSUM : 0); iow(db, DM9000_GPCR, GPCR_GEP_CNTL); /* Let GPIO0 output */ + iow(db, DM9000_GPR, 0); - dm9000_phy_write(dev, 0, MII_BMCR, BMCR_RESET); /* PHY RESET */ - dm9000_phy_write(dev, 0, MII_DM_DSPCR, DSPCR_INIT_PARAM); /* Init */ + /* If we are dealing with DM9000B, some extra steps are required: a + * manual phy reset, and setting init params. + */ + if (db->type == TYPE_DM9000B) { + dm9000_phy_write(dev, 0, MII_BMCR, BMCR_RESET); + dm9000_phy_write(dev, 0, MII_DM_DSPCR, DSPCR_INIT_PARAM); + } ncr = (db->flags & DM9000_PLATF_EXT_PHY) ? NCR_EXT_PHY : 0; diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h index db020230bd0b..c99dac6a9ddf 100644 --- a/drivers/net/ethernet/emulex/benet/be.h +++ b/drivers/net/ethernet/emulex/benet/be.h @@ -696,6 +696,15 @@ static inline int qnq_async_evt_rcvd(struct be_adapter *adapter) return adapter->flags & BE_FLAGS_QNQ_ASYNC_EVT_RCVD; } +static inline int fw_major_num(const char *fw_ver) +{ + int fw_major = 0; + + sscanf(fw_ver, "%d.", &fw_major); + + return fw_major; +} + extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped); extern void be_link_status_update(struct be_adapter *adapter, u8 link_status); diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c index bd0e0c0bbcd8..c08fd32bb8e5 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.c +++ b/drivers/net/ethernet/emulex/benet/be_cmds.c @@ -1198,7 +1198,6 @@ int be_cmd_txq_create(struct be_adapter *adapter, struct be_tx_obj *txo) if (lancer_chip(adapter)) { req->hdr.version = 1; - req->if_id = cpu_to_le16(adapter->if_handle); } else if (BEx_chip(adapter)) { if (adapter->function_caps & BE_FUNCTION_CAPS_SUPER_NIC) req->hdr.version = 2; @@ -1206,6 +1205,8 @@ int be_cmd_txq_create(struct be_adapter *adapter, struct be_tx_obj *txo) req->hdr.version = 2; } + if (req->hdr.version > 0) + req->if_id = cpu_to_le16(adapter->if_handle); req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); req->ulp_num = BE_ULP1_NUM; req->type = BE_ETH_TX_RING_TYPE_STANDARD; diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 2c38cc402119..53ed58b492c8 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -3247,6 +3247,12 @@ static int be_setup(struct be_adapter *adapter) be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash); + if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) { + dev_err(dev, "Firmware on card is old(%s), IRQs may not work.", + adapter->fw_ver); + dev_err(dev, "Please upgrade firmware to version >= 4.0\n"); + } + if (adapter->vlans_added) be_vid_config(adapter); diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index c4eaadeb572f..9fbe4dda7a0e 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -88,6 +88,7 @@ #include <asm/io.h> #include <asm/reg.h> +#include <asm/mpc85xx.h> #include <asm/irq.h> #include <asm/uaccess.h> #include <linux/module.h> @@ -939,9 +940,8 @@ static void gfar_init_filer_table(struct gfar_private *priv) } } -static void gfar_detect_errata(struct gfar_private *priv) +static void __gfar_detect_errata_83xx(struct gfar_private *priv) { - struct device *dev = &priv->ofdev->dev; unsigned int pvr = mfspr(SPRN_PVR); unsigned int svr = mfspr(SPRN_SVR); unsigned int mod = (svr >> 16) & 0xfff6; /* w/o E suffix */ @@ -957,15 +957,33 @@ static void gfar_detect_errata(struct gfar_private *priv) (pvr == 0x80861010 && (mod & 0xfff9) == 0x80c0)) priv->errata |= GFAR_ERRATA_76; - /* MPC8313 and MPC837x all rev */ - if ((pvr == 0x80850010 && mod == 0x80b0) || - (pvr == 0x80861010 && (mod & 0xfff9) == 0x80c0)) - priv->errata |= GFAR_ERRATA_A002; + /* MPC8313 Rev < 2.0 */ + if (pvr == 0x80850010 && mod == 0x80b0 && rev < 0x0020) + priv->errata |= GFAR_ERRATA_12; +} - /* MPC8313 Rev < 2.0, MPC8548 rev 2.0 */ - if ((pvr == 0x80850010 && mod == 0x80b0 && rev < 0x0020) || - (pvr == 0x80210020 && mod == 0x8030 && rev == 0x0020)) +static void __gfar_detect_errata_85xx(struct gfar_private *priv) +{ + unsigned int svr = mfspr(SPRN_SVR); + + if ((SVR_SOC_VER(svr) == SVR_8548) && (SVR_REV(svr) == 0x20)) priv->errata |= GFAR_ERRATA_12; + if (((SVR_SOC_VER(svr) == SVR_P2020) && (SVR_REV(svr) < 0x20)) || + ((SVR_SOC_VER(svr) == SVR_P2010) && (SVR_REV(svr) < 0x20))) + priv->errata |= GFAR_ERRATA_76; /* aka eTSEC 20 */ +} + +static void gfar_detect_errata(struct gfar_private *priv) +{ + struct device *dev = &priv->ofdev->dev; + + /* no plans to fix */ + priv->errata |= GFAR_ERRATA_A002; + + if (pvr_version_is(PVR_VER_E500V1) || pvr_version_is(PVR_VER_E500V2)) + __gfar_detect_errata_85xx(priv); + else /* non-mpc85xx parts, i.e. e300 core based */ + __gfar_detect_errata_83xx(priv); if (priv->errata) dev_info(dev, "enabled errata workarounds, flags: 0x%x\n", @@ -1599,7 +1617,7 @@ static int __gfar_is_rx_idle(struct gfar_private *priv) /* Normaly TSEC should not hang on GRS commands, so we should * actually wait for IEVENT_GRSC flag. */ - if (likely(!gfar_has_errata(priv, GFAR_ERRATA_A002))) + if (!gfar_has_errata(priv, GFAR_ERRATA_A002)) return 0; /* Read the eTSEC register at offset 0xD1C. If bits 7-14 are diff --git a/drivers/net/ethernet/ibm/emac/mal.c b/drivers/net/ethernet/ibm/emac/mal.c index dac564c25440..e7847510eda2 100644 --- a/drivers/net/ethernet/ibm/emac/mal.c +++ b/drivers/net/ethernet/ibm/emac/mal.c @@ -263,7 +263,9 @@ static inline void mal_schedule_poll(struct mal_instance *mal) { if (likely(napi_schedule_prep(&mal->napi))) { MAL_DBG2(mal, "schedule_poll" NL); + spin_lock(&mal->lock); mal_disable_eob_irq(mal); + spin_unlock(&mal->lock); __napi_schedule(&mal->napi); } else MAL_DBG2(mal, "already in poll" NL); @@ -442,15 +444,13 @@ static int mal_poll(struct napi_struct *napi, int budget) if (unlikely(mc->ops->peek_rx(mc->dev) || test_bit(MAL_COMMAC_RX_STOPPED, &mc->flags))) { MAL_DBG2(mal, "rotting packet" NL); - if (napi_reschedule(napi)) - mal_disable_eob_irq(mal); - else - MAL_DBG2(mal, "already in poll list" NL); - - if (budget > 0) - goto again; - else + if (!napi_reschedule(napi)) goto more_work; + + spin_lock_irqsave(&mal->lock, flags); + mal_disable_eob_irq(mal); + spin_unlock_irqrestore(&mal->lock, flags); + goto again; } mc->ops->poll_tx(mc->dev); } diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c index 86d51429a189..151e00cad113 100644 --- a/drivers/net/ethernet/intel/igb/igb_ethtool.c +++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c @@ -2655,6 +2655,8 @@ static int igb_set_eee(struct net_device *netdev, (hw->phy.media_type != e1000_media_type_copper)) return -EOPNOTSUPP; + memset(&eee_curr, 0, sizeof(struct ethtool_eee)); + ret_val = igb_get_eee(netdev, &eee_curr); if (ret_val) return ret_val; diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c index 7fb5677451f9..2c210ec35d59 100644 --- a/drivers/net/ethernet/marvell/mv643xx_eth.c +++ b/drivers/net/ethernet/marvell/mv643xx_eth.c @@ -1131,15 +1131,13 @@ static void mib_counters_update(struct mv643xx_eth_private *mp) p->rx_discard += rdlp(mp, RX_DISCARD_FRAME_CNT); p->rx_overrun += rdlp(mp, RX_OVERRUN_FRAME_CNT); spin_unlock_bh(&mp->mib_counters_lock); - - mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ); } static void mib_counters_timer_wrapper(unsigned long _mp) { struct mv643xx_eth_private *mp = (void *)_mp; - mib_counters_update(mp); + mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ); } @@ -2237,6 +2235,7 @@ static int mv643xx_eth_open(struct net_device *dev) mp->int_mask |= INT_TX_END_0 << i; } + add_timer(&mp->mib_counters_timer); port_start(mp); wrlp(mp, INT_MASK_EXT, INT_EXT_LINK_PHY | INT_EXT_TX); @@ -2534,6 +2533,7 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev, if (!ppdev) return -ENOMEM; ppdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + ppdev->dev.of_node = pnp; ret = platform_device_add_resources(ppdev, &res, 1); if (ret) @@ -2916,7 +2916,6 @@ static int mv643xx_eth_probe(struct platform_device *pdev) mp->mib_counters_timer.data = (unsigned long)mp; mp->mib_counters_timer.function = mib_counters_timer_wrapper; mp->mib_counters_timer.expires = jiffies + 30 * HZ; - add_timer(&mp->mib_counters_timer); spin_lock_init(&mp->mib_counters_lock); diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c index ea20182c6969..bb11624a1f39 100644 --- a/drivers/net/ethernet/mellanox/mlx4/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c @@ -1691,7 +1691,7 @@ static void mlx4_master_deactivate_admin_state(struct mlx4_priv *priv, int slave vp_oper->vlan_idx = NO_INDX; } if (NO_INDX != vp_oper->mac_idx) { - __mlx4_unregister_mac(&priv->dev, port, vp_oper->mac_idx); + __mlx4_unregister_mac(&priv->dev, port, vp_oper->state.mac); vp_oper->mac_idx = NO_INDX; } } diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index dec455c8f627..afe2efa69c86 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -70,14 +70,15 @@ static int mlx4_alloc_pages(struct mlx4_en_priv *priv, put_page(page); return -ENOMEM; } - page_alloc->size = PAGE_SIZE << order; + page_alloc->page_size = PAGE_SIZE << order; page_alloc->page = page; page_alloc->dma = dma; - page_alloc->offset = frag_info->frag_align; + page_alloc->page_offset = frag_info->frag_align; /* Not doing get_page() for each frag is a big win * on asymetric workloads. */ - atomic_set(&page->_count, page_alloc->size / frag_info->frag_stride); + atomic_set(&page->_count, + page_alloc->page_size / frag_info->frag_stride); return 0; } @@ -96,16 +97,19 @@ static int mlx4_en_alloc_frags(struct mlx4_en_priv *priv, for (i = 0; i < priv->num_frags; i++) { frag_info = &priv->frag_info[i]; page_alloc[i] = ring_alloc[i]; - page_alloc[i].offset += frag_info->frag_stride; - if (page_alloc[i].offset + frag_info->frag_stride <= ring_alloc[i].size) + page_alloc[i].page_offset += frag_info->frag_stride; + + if (page_alloc[i].page_offset + frag_info->frag_stride <= + ring_alloc[i].page_size) continue; + if (mlx4_alloc_pages(priv, &page_alloc[i], frag_info, gfp)) goto out; } for (i = 0; i < priv->num_frags; i++) { frags[i] = ring_alloc[i]; - dma = ring_alloc[i].dma + ring_alloc[i].offset; + dma = ring_alloc[i].dma + ring_alloc[i].page_offset; ring_alloc[i] = page_alloc[i]; rx_desc->data[i].addr = cpu_to_be64(dma); } @@ -117,7 +121,7 @@ out: frag_info = &priv->frag_info[i]; if (page_alloc[i].page != ring_alloc[i].page) { dma_unmap_page(priv->ddev, page_alloc[i].dma, - page_alloc[i].size, PCI_DMA_FROMDEVICE); + page_alloc[i].page_size, PCI_DMA_FROMDEVICE); page = page_alloc[i].page; atomic_set(&page->_count, 1); put_page(page); @@ -131,10 +135,12 @@ static void mlx4_en_free_frag(struct mlx4_en_priv *priv, int i) { const struct mlx4_en_frag_info *frag_info = &priv->frag_info[i]; + u32 next_frag_end = frags[i].page_offset + 2 * frag_info->frag_stride; + - if (frags[i].offset + frag_info->frag_stride > frags[i].size) - dma_unmap_page(priv->ddev, frags[i].dma, frags[i].size, - PCI_DMA_FROMDEVICE); + if (next_frag_end > frags[i].page_size) + dma_unmap_page(priv->ddev, frags[i].dma, frags[i].page_size, + PCI_DMA_FROMDEVICE); if (frags[i].page) put_page(frags[i].page); @@ -161,7 +167,7 @@ out: page_alloc = &ring->page_alloc[i]; dma_unmap_page(priv->ddev, page_alloc->dma, - page_alloc->size, PCI_DMA_FROMDEVICE); + page_alloc->page_size, PCI_DMA_FROMDEVICE); page = page_alloc->page; atomic_set(&page->_count, 1); put_page(page); @@ -184,10 +190,11 @@ static void mlx4_en_destroy_allocator(struct mlx4_en_priv *priv, i, page_count(page_alloc->page)); dma_unmap_page(priv->ddev, page_alloc->dma, - page_alloc->size, PCI_DMA_FROMDEVICE); - while (page_alloc->offset + frag_info->frag_stride < page_alloc->size) { + page_alloc->page_size, PCI_DMA_FROMDEVICE); + while (page_alloc->page_offset + frag_info->frag_stride < + page_alloc->page_size) { put_page(page_alloc->page); - page_alloc->offset += frag_info->frag_stride; + page_alloc->page_offset += frag_info->frag_stride; } page_alloc->page = NULL; } @@ -478,7 +485,7 @@ static int mlx4_en_complete_rx_desc(struct mlx4_en_priv *priv, /* Save page reference in skb */ __skb_frag_set_page(&skb_frags_rx[nr], frags[nr].page); skb_frag_size_set(&skb_frags_rx[nr], frag_info->frag_size); - skb_frags_rx[nr].page_offset = frags[nr].offset; + skb_frags_rx[nr].page_offset = frags[nr].page_offset; skb->truesize += frag_info->frag_stride; frags[nr].page = NULL; } @@ -517,7 +524,7 @@ static struct sk_buff *mlx4_en_rx_skb(struct mlx4_en_priv *priv, /* Get pointer to first fragment so we could copy the headers into the * (linear part of the) skb */ - va = page_address(frags[0].page) + frags[0].offset; + va = page_address(frags[0].page) + frags[0].page_offset; if (length <= SMALL_PACKET_SIZE) { /* We are copying all relevant data to the skb - temporarily @@ -645,7 +652,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud dma_sync_single_for_cpu(priv->ddev, dma, sizeof(*ethh), DMA_FROM_DEVICE); ethh = (struct ethhdr *)(page_address(frags[0].page) + - frags[0].offset); + frags[0].page_offset); if (is_multicast_ether_addr(ethh->h_dest)) { struct mlx4_mac_entry *entry; diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h index 5e0aa569306a..bf06e3610d27 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -237,8 +237,8 @@ struct mlx4_en_tx_desc { struct mlx4_en_rx_alloc { struct page *page; dma_addr_t dma; - u32 offset; - u32 size; + u32 page_offset; + u32 page_size; }; struct mlx4_en_tx_ring { diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c index 5472cbd34028..6ca30739625f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c @@ -180,28 +180,32 @@ static int verify_block_sig(struct mlx5_cmd_prot_block *block) return 0; } -static void calc_block_sig(struct mlx5_cmd_prot_block *block, u8 token) +static void calc_block_sig(struct mlx5_cmd_prot_block *block, u8 token, + int csum) { block->token = token; - block->ctrl_sig = ~xor8_buf(block->rsvd0, sizeof(*block) - sizeof(block->data) - 2); - block->sig = ~xor8_buf(block, sizeof(*block) - 1); + if (csum) { + block->ctrl_sig = ~xor8_buf(block->rsvd0, sizeof(*block) - + sizeof(block->data) - 2); + block->sig = ~xor8_buf(block, sizeof(*block) - 1); + } } -static void calc_chain_sig(struct mlx5_cmd_msg *msg, u8 token) +static void calc_chain_sig(struct mlx5_cmd_msg *msg, u8 token, int csum) { struct mlx5_cmd_mailbox *next = msg->next; while (next) { - calc_block_sig(next->buf, token); + calc_block_sig(next->buf, token, csum); next = next->next; } } -static void set_signature(struct mlx5_cmd_work_ent *ent) +static void set_signature(struct mlx5_cmd_work_ent *ent, int csum) { ent->lay->sig = ~xor8_buf(ent->lay, sizeof(*ent->lay)); - calc_chain_sig(ent->in, ent->token); - calc_chain_sig(ent->out, ent->token); + calc_chain_sig(ent->in, ent->token, csum); + calc_chain_sig(ent->out, ent->token, csum); } static void poll_timeout(struct mlx5_cmd_work_ent *ent) @@ -539,8 +543,7 @@ static void cmd_work_handler(struct work_struct *work) lay->type = MLX5_PCI_CMD_XPORT; lay->token = ent->token; lay->status_own = CMD_OWNER_HW; - if (!cmd->checksum_disabled) - set_signature(ent); + set_signature(ent, !cmd->checksum_disabled); dump_command(dev, ent, 1); ktime_get_ts(&ent->ts1); @@ -773,8 +776,6 @@ static int mlx5_copy_from_msg(void *to, struct mlx5_cmd_msg *from, int size) copy = min_t(int, size, MLX5_CMD_DATA_BLOCK_SIZE); block = next->buf; - if (xor8_buf(block, sizeof(*block)) != 0xff) - return -EINVAL; memcpy(to, block->data, copy); to += copy; @@ -1361,6 +1362,7 @@ int mlx5_cmd_init(struct mlx5_core_dev *dev) goto err_map; } + cmd->checksum_disabled = 1; cmd->max_reg_cmds = (1 << cmd->log_sz) - 1; cmd->bitmask = (1 << cmd->max_reg_cmds) - 1; @@ -1510,7 +1512,7 @@ int mlx5_cmd_status_to_err(struct mlx5_outbox_hdr *hdr) case MLX5_CMD_STAT_BAD_SYS_STATE_ERR: return -EIO; case MLX5_CMD_STAT_BAD_RES_ERR: return -EINVAL; case MLX5_CMD_STAT_RES_BUSY: return -EBUSY; - case MLX5_CMD_STAT_LIM_ERR: return -EINVAL; + case MLX5_CMD_STAT_LIM_ERR: return -ENOMEM; case MLX5_CMD_STAT_BAD_RES_STATE_ERR: return -EINVAL; case MLX5_CMD_STAT_IX_ERR: return -EINVAL; case MLX5_CMD_STAT_NO_RES_ERR: return -EAGAIN; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c index 443cc4d7b024..2231d93cc7ad 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c @@ -366,9 +366,11 @@ int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx, goto err_in; } + snprintf(eq->name, MLX5_MAX_EQ_NAME, "%s@pci:%s", + name, pci_name(dev->pdev)); eq->eqn = out.eq_number; err = request_irq(table->msix_arr[vecidx].vector, mlx5_msix_handler, 0, - name, eq); + eq->name, eq); if (err) goto err_eq; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index b47739b0b5f6..bc0f5fb66e24 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -165,9 +165,7 @@ static int handle_hca_cap(struct mlx5_core_dev *dev) struct mlx5_cmd_set_hca_cap_mbox_in *set_ctx = NULL; struct mlx5_cmd_query_hca_cap_mbox_in query_ctx; struct mlx5_cmd_set_hca_cap_mbox_out set_out; - struct mlx5_profile *prof = dev->profile; u64 flags; - int csum = 1; int err; memset(&query_ctx, 0, sizeof(query_ctx)); @@ -197,20 +195,14 @@ static int handle_hca_cap(struct mlx5_core_dev *dev) memcpy(&set_ctx->hca_cap, &query_out->hca_cap, sizeof(set_ctx->hca_cap)); - if (prof->mask & MLX5_PROF_MASK_CMDIF_CSUM) { - csum = !!prof->cmdif_csum; - flags = be64_to_cpu(set_ctx->hca_cap.flags); - if (csum) - flags |= MLX5_DEV_CAP_FLAG_CMDIF_CSUM; - else - flags &= ~MLX5_DEV_CAP_FLAG_CMDIF_CSUM; - - set_ctx->hca_cap.flags = cpu_to_be64(flags); - } - if (dev->profile->mask & MLX5_PROF_MASK_QP_SIZE) set_ctx->hca_cap.log_max_qp = dev->profile->log_max_qp; + flags = be64_to_cpu(query_out->hca_cap.flags); + /* disable checksum */ + flags &= ~MLX5_DEV_CAP_FLAG_CMDIF_CSUM; + + set_ctx->hca_cap.flags = cpu_to_be64(flags); memset(&set_out, 0, sizeof(set_out)); set_ctx->hca_cap.log_uar_page_sz = cpu_to_be16(PAGE_SHIFT - 12); set_ctx->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_SET_HCA_CAP); @@ -225,9 +217,6 @@ static int handle_hca_cap(struct mlx5_core_dev *dev) if (err) goto query_ex; - if (!csum) - dev->cmd.checksum_disabled = 1; - query_ex: kfree(query_out); kfree(set_ctx); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c index 3a2408d44820..7b12acf210f8 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c @@ -90,6 +90,10 @@ struct mlx5_manage_pages_outbox { __be64 pas[0]; }; +enum { + MAX_RECLAIM_TIME_MSECS = 5000, +}; + static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u16 func_id) { struct rb_root *root = &dev->priv.page_root; @@ -279,6 +283,9 @@ static int reclaim_pages(struct mlx5_core_dev *dev, u32 func_id, int npages, int err; int i; + if (nclaimed) + *nclaimed = 0; + memset(&in, 0, sizeof(in)); outlen = sizeof(*out) + npages * sizeof(out->pas[0]); out = mlx5_vzalloc(outlen); @@ -388,20 +395,25 @@ static int optimal_reclaimed_pages(void) int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev) { - unsigned long end = jiffies + msecs_to_jiffies(5000); + unsigned long end = jiffies + msecs_to_jiffies(MAX_RECLAIM_TIME_MSECS); struct fw_page *fwp; struct rb_node *p; + int nclaimed = 0; int err; do { p = rb_first(&dev->priv.page_root); if (p) { fwp = rb_entry(p, struct fw_page, rb_node); - err = reclaim_pages(dev, fwp->func_id, optimal_reclaimed_pages(), NULL); + err = reclaim_pages(dev, fwp->func_id, + optimal_reclaimed_pages(), + &nclaimed); if (err) { mlx5_core_warn(dev, "failed reclaiming pages (%d)\n", err); return err; } + if (nclaimed) + end = jiffies + msecs_to_jiffies(MAX_RECLAIM_TIME_MSECS); } if (time_after(jiffies, end)) { mlx5_core_warn(dev, "FW did not return all pages. giving up...\n"); diff --git a/drivers/net/ethernet/moxa/moxart_ether.c b/drivers/net/ethernet/moxa/moxart_ether.c index bd1a2d2bc2ae..ea54d95e5b9f 100644 --- a/drivers/net/ethernet/moxa/moxart_ether.c +++ b/drivers/net/ethernet/moxa/moxart_ether.c @@ -448,7 +448,8 @@ static int moxart_mac_probe(struct platform_device *pdev) irq = irq_of_parse_and_map(node, 0); if (irq <= 0) { netdev_err(ndev, "irq_of_parse_and_map failed\n"); - return -EINVAL; + ret = -EINVAL; + goto irq_map_fail; } priv = netdev_priv(ndev); @@ -472,24 +473,32 @@ static int moxart_mac_probe(struct platform_device *pdev) priv->tx_desc_base = dma_alloc_coherent(NULL, TX_REG_DESC_SIZE * TX_DESC_NUM, &priv->tx_base, GFP_DMA | GFP_KERNEL); - if (priv->tx_desc_base == NULL) + if (priv->tx_desc_base == NULL) { + ret = -ENOMEM; goto init_fail; + } priv->rx_desc_base = dma_alloc_coherent(NULL, RX_REG_DESC_SIZE * RX_DESC_NUM, &priv->rx_base, GFP_DMA | GFP_KERNEL); - if (priv->rx_desc_base == NULL) + if (priv->rx_desc_base == NULL) { + ret = -ENOMEM; goto init_fail; + } priv->tx_buf_base = kmalloc(priv->tx_buf_size * TX_DESC_NUM, GFP_ATOMIC); - if (!priv->tx_buf_base) + if (!priv->tx_buf_base) { + ret = -ENOMEM; goto init_fail; + } priv->rx_buf_base = kmalloc(priv->rx_buf_size * RX_DESC_NUM, GFP_ATOMIC); - if (!priv->rx_buf_base) + if (!priv->rx_buf_base) { + ret = -ENOMEM; goto init_fail; + } platform_set_drvdata(pdev, ndev); @@ -522,7 +531,8 @@ static int moxart_mac_probe(struct platform_device *pdev) init_fail: netdev_err(ndev, "init failed\n"); moxart_mac_free_memory(ndev); - +irq_map_fail: + free_netdev(ndev); return ret; } diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c index 3ca00e05f23d..ace217c447dd 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c @@ -2276,9 +2276,9 @@ int qlcnic_83xx_get_nic_info(struct qlcnic_adapter *adapter, temp = (cmd.rsp.arg[8] & 0x7FFE0000) >> 17; npar_info->max_linkspeed_reg_offset = temp; } - if (npar_info->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) - memcpy(ahw->extra_capability, &cmd.rsp.arg[16], - sizeof(ahw->extra_capability)); + + memcpy(ahw->extra_capability, &cmd.rsp.arg[16], + sizeof(ahw->extra_capability)); out: qlcnic_free_mbx_args(&cmd); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c index ebe4c86e5230..ff83a9fcd4c5 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c @@ -665,7 +665,7 @@ static int qlcnic_set_channels(struct net_device *dev, return err; } - if (channel->tx_count) { + if (qlcnic_82xx_check(adapter) && channel->tx_count) { err = qlcnic_validate_max_tx_rings(adapter, channel->tx_count); if (err) return err; diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c index f8adc7b01f1f..b64e2bef9428 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c @@ -785,8 +785,6 @@ void qlcnic_82xx_config_intr_coalesce(struct qlcnic_adapter *adapter) #define QLCNIC_ENABLE_IPV4_LRO 1 #define QLCNIC_ENABLE_IPV6_LRO 2 -#define QLCNIC_NO_DEST_IPV4_CHECK (1 << 8) -#define QLCNIC_NO_DEST_IPV6_CHECK (2 << 8) int qlcnic_82xx_config_hw_lro(struct qlcnic_adapter *adapter, int enable) { @@ -806,11 +804,10 @@ int qlcnic_82xx_config_hw_lro(struct qlcnic_adapter *adapter, int enable) word = 0; if (enable) { - word = QLCNIC_ENABLE_IPV4_LRO | QLCNIC_NO_DEST_IPV4_CHECK; + word = QLCNIC_ENABLE_IPV4_LRO; if (adapter->ahw->extra_capability[0] & QLCNIC_FW_CAP2_HW_LRO_IPV6) - word |= QLCNIC_ENABLE_IPV6_LRO | - QLCNIC_NO_DEST_IPV6_CHECK; + word |= QLCNIC_ENABLE_IPV6_LRO; } req.words[0] = cpu_to_le64(word); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c index 21d00a0449a1..d8f4897e9e82 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c @@ -1131,7 +1131,10 @@ qlcnic_initialize_nic(struct qlcnic_adapter *adapter) if (err == -EIO) return err; adapter->ahw->extra_capability[0] = temp; + } else { + adapter->ahw->extra_capability[0] = 0; } + adapter->ahw->max_mac_filters = nic_info.max_mac_filters; adapter->ahw->max_mtu = nic_info.max_mtu; @@ -2159,8 +2162,7 @@ void qlcnic_set_drv_version(struct qlcnic_adapter *adapter) else if (qlcnic_83xx_check(adapter)) fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER; - if ((ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) && - (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)) + if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER) qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd); } @@ -2257,7 +2259,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) err = qlcnic_alloc_adapter_resources(adapter); if (err) - goto err_out_free_netdev; + goto err_out_free_wq; adapter->dev_rst_time = jiffies; adapter->ahw->revision_id = pdev->revision; @@ -2396,6 +2398,9 @@ err_out_disable_msi: err_out_free_hw: qlcnic_free_adapter_resources(adapter); +err_out_free_wq: + destroy_workqueue(adapter->qlcnic_wq); + err_out_free_netdev: free_netdev(netdev); @@ -3648,11 +3653,6 @@ int qlcnic_validate_max_tx_rings(struct qlcnic_adapter *adapter, u32 txq) u8 max_hw = QLCNIC_MAX_TX_RINGS; u32 max_allowed; - if (!qlcnic_82xx_check(adapter)) { - netdev_err(netdev, "No Multi TX-Q support\n"); - return -EINVAL; - } - if (!qlcnic_use_msi_x && !qlcnic_use_msi) { netdev_err(netdev, "No Multi TX-Q support in INT-x mode\n"); return -EINVAL; @@ -3692,8 +3692,7 @@ int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter, u8 max_hw = adapter->ahw->max_rx_ques; u32 max_allowed; - if (qlcnic_82xx_check(adapter) && !qlcnic_use_msi_x && - !qlcnic_use_msi) { + if (!qlcnic_use_msi_x && !qlcnic_use_msi) { netdev_err(netdev, "No RSS support in INT-x mode\n"); return -EINVAL; } diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 5cd831ebfa83..b57c278d3b46 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -688,12 +688,16 @@ static struct sh_eth_cpu_data r8a7740_data = { .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, + .fdr_value = 0x0000070f, + .rmcr_value = 0x00000001, .apr = 1, .mpr = 1, .tpauser = 1, .bculr = 1, .hw_swap = 1, + .rpadir = 1, + .rpadir_value = 2 << 16, .no_trimd = 1, .no_ade = 1, .tsu = 1, diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index 9f18ae984f9e..21f9ad6392e9 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -444,6 +444,18 @@ static const struct efx_hw_stat_desc efx_ef10_stat_desc[EF10_STAT_COUNT] = { EF10_DMA_STAT(rx_align_error, RX_ALIGN_ERROR_PKTS), EF10_DMA_STAT(rx_length_error, RX_LENGTH_ERROR_PKTS), EF10_DMA_STAT(rx_nodesc_drops, RX_NODESC_DROPS), + EF10_DMA_STAT(rx_pm_trunc_bb_overflow, PM_TRUNC_BB_OVERFLOW), + EF10_DMA_STAT(rx_pm_discard_bb_overflow, PM_DISCARD_BB_OVERFLOW), + EF10_DMA_STAT(rx_pm_trunc_vfifo_full, PM_TRUNC_VFIFO_FULL), + EF10_DMA_STAT(rx_pm_discard_vfifo_full, PM_DISCARD_VFIFO_FULL), + EF10_DMA_STAT(rx_pm_trunc_qbb, PM_TRUNC_QBB), + EF10_DMA_STAT(rx_pm_discard_qbb, PM_DISCARD_QBB), + EF10_DMA_STAT(rx_pm_discard_mapping, PM_DISCARD_MAPPING), + EF10_DMA_STAT(rx_dp_q_disabled_packets, RXDP_Q_DISABLED_PKTS), + EF10_DMA_STAT(rx_dp_di_dropped_packets, RXDP_DI_DROPPED_PKTS), + EF10_DMA_STAT(rx_dp_streaming_packets, RXDP_STREAMING_PKTS), + EF10_DMA_STAT(rx_dp_emerg_fetch, RXDP_EMERGENCY_FETCH_CONDITIONS), + EF10_DMA_STAT(rx_dp_emerg_wait, RXDP_EMERGENCY_WAIT_CONDITIONS), }; #define HUNT_COMMON_STAT_MASK ((1ULL << EF10_STAT_tx_bytes) | \ @@ -498,44 +510,72 @@ static const struct efx_hw_stat_desc efx_ef10_stat_desc[EF10_STAT_COUNT] = { #define HUNT_40G_EXTRA_STAT_MASK ((1ULL << EF10_STAT_rx_align_error) | \ (1ULL << EF10_STAT_rx_length_error)) -#if BITS_PER_LONG == 64 -#define STAT_MASK_BITMAP(bits) (bits) -#else -#define STAT_MASK_BITMAP(bits) (bits) & 0xffffffff, (bits) >> 32 -#endif - -static const unsigned long *efx_ef10_stat_mask(struct efx_nic *efx) -{ - static const unsigned long hunt_40g_stat_mask[] = { - STAT_MASK_BITMAP(HUNT_COMMON_STAT_MASK | - HUNT_40G_EXTRA_STAT_MASK) - }; - static const unsigned long hunt_10g_only_stat_mask[] = { - STAT_MASK_BITMAP(HUNT_COMMON_STAT_MASK | - HUNT_10G_ONLY_STAT_MASK) - }; +/* These statistics are only provided if the firmware supports the + * capability PM_AND_RXDP_COUNTERS. + */ +#define HUNT_PM_AND_RXDP_STAT_MASK ( \ + (1ULL << EF10_STAT_rx_pm_trunc_bb_overflow) | \ + (1ULL << EF10_STAT_rx_pm_discard_bb_overflow) | \ + (1ULL << EF10_STAT_rx_pm_trunc_vfifo_full) | \ + (1ULL << EF10_STAT_rx_pm_discard_vfifo_full) | \ + (1ULL << EF10_STAT_rx_pm_trunc_qbb) | \ + (1ULL << EF10_STAT_rx_pm_discard_qbb) | \ + (1ULL << EF10_STAT_rx_pm_discard_mapping) | \ + (1ULL << EF10_STAT_rx_dp_q_disabled_packets) | \ + (1ULL << EF10_STAT_rx_dp_di_dropped_packets) | \ + (1ULL << EF10_STAT_rx_dp_streaming_packets) | \ + (1ULL << EF10_STAT_rx_dp_emerg_fetch) | \ + (1ULL << EF10_STAT_rx_dp_emerg_wait)) + +static u64 efx_ef10_raw_stat_mask(struct efx_nic *efx) +{ + u64 raw_mask = HUNT_COMMON_STAT_MASK; u32 port_caps = efx_mcdi_phy_get_caps(efx); + struct efx_ef10_nic_data *nic_data = efx->nic_data; if (port_caps & (1 << MC_CMD_PHY_CAP_40000FDX_LBN)) - return hunt_40g_stat_mask; + raw_mask |= HUNT_40G_EXTRA_STAT_MASK; else - return hunt_10g_only_stat_mask; + raw_mask |= HUNT_10G_ONLY_STAT_MASK; + + if (nic_data->datapath_caps & + (1 << MC_CMD_GET_CAPABILITIES_OUT_PM_AND_RXDP_COUNTERS_LBN)) + raw_mask |= HUNT_PM_AND_RXDP_STAT_MASK; + + return raw_mask; +} + +static void efx_ef10_get_stat_mask(struct efx_nic *efx, unsigned long *mask) +{ + u64 raw_mask = efx_ef10_raw_stat_mask(efx); + +#if BITS_PER_LONG == 64 + mask[0] = raw_mask; +#else + mask[0] = raw_mask & 0xffffffff; + mask[1] = raw_mask >> 32; +#endif } static size_t efx_ef10_describe_stats(struct efx_nic *efx, u8 *names) { + DECLARE_BITMAP(mask, EF10_STAT_COUNT); + + efx_ef10_get_stat_mask(efx, mask); return efx_nic_describe_stats(efx_ef10_stat_desc, EF10_STAT_COUNT, - efx_ef10_stat_mask(efx), names); + mask, names); } static int efx_ef10_try_update_nic_stats(struct efx_nic *efx) { struct efx_ef10_nic_data *nic_data = efx->nic_data; - const unsigned long *stats_mask = efx_ef10_stat_mask(efx); + DECLARE_BITMAP(mask, EF10_STAT_COUNT); __le64 generation_start, generation_end; u64 *stats = nic_data->stats; __le64 *dma_stats; + efx_ef10_get_stat_mask(efx, mask); + dma_stats = efx->stats_buffer.addr; nic_data = efx->nic_data; @@ -543,8 +583,9 @@ static int efx_ef10_try_update_nic_stats(struct efx_nic *efx) if (generation_end == EFX_MC_STATS_GENERATION_INVALID) return 0; rmb(); - efx_nic_update_stats(efx_ef10_stat_desc, EF10_STAT_COUNT, stats_mask, + efx_nic_update_stats(efx_ef10_stat_desc, EF10_STAT_COUNT, mask, stats, efx->stats_buffer.addr, false); + rmb(); generation_start = dma_stats[MC_CMD_MAC_GENERATION_START]; if (generation_end != generation_start) return -EAGAIN; @@ -563,12 +604,14 @@ static int efx_ef10_try_update_nic_stats(struct efx_nic *efx) static size_t efx_ef10_update_stats(struct efx_nic *efx, u64 *full_stats, struct rtnl_link_stats64 *core_stats) { - const unsigned long *mask = efx_ef10_stat_mask(efx); + DECLARE_BITMAP(mask, EF10_STAT_COUNT); struct efx_ef10_nic_data *nic_data = efx->nic_data; u64 *stats = nic_data->stats; size_t stats_count = 0, index; int retry; + efx_ef10_get_stat_mask(efx, mask); + /* If we're unlucky enough to read statistics during the DMA, wait * up to 10ms for it to finish (typically takes <500us) */ diff --git a/drivers/net/ethernet/sfc/mcdi.c b/drivers/net/ethernet/sfc/mcdi.c index c082562dbf4e..366c8e3e3784 100644 --- a/drivers/net/ethernet/sfc/mcdi.c +++ b/drivers/net/ethernet/sfc/mcdi.c @@ -963,7 +963,7 @@ static int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating, bool *was_attached) { MCDI_DECLARE_BUF(inbuf, MC_CMD_DRV_ATTACH_IN_LEN); - MCDI_DECLARE_BUF(outbuf, MC_CMD_DRV_ATTACH_OUT_LEN); + MCDI_DECLARE_BUF(outbuf, MC_CMD_DRV_ATTACH_EXT_OUT_LEN); size_t outlen; int rc; @@ -981,6 +981,22 @@ static int efx_mcdi_drv_attach(struct efx_nic *efx, bool driver_operating, goto fail; } + /* We currently assume we have control of the external link + * and are completely trusted by firmware. Abort probing + * if that's not true for this function. + */ + if (driver_operating && + outlen >= MC_CMD_DRV_ATTACH_EXT_OUT_LEN && + (MCDI_DWORD(outbuf, DRV_ATTACH_EXT_OUT_FUNC_FLAGS) & + (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_LINKCTRL | + 1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_TRUSTED)) != + (1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_LINKCTRL | + 1 << MC_CMD_DRV_ATTACH_EXT_OUT_FLAG_TRUSTED)) { + netif_err(efx, probe, efx->net_dev, + "This driver version only supports one function per port\n"); + return -ENODEV; + } + if (was_attached != NULL) *was_attached = MCDI_DWORD(outbuf, DRV_ATTACH_OUT_OLD_STATE); return 0; diff --git a/drivers/net/ethernet/sfc/mcdi_pcol.h b/drivers/net/ethernet/sfc/mcdi_pcol.h index b5cf62492f8e..e0a63ddb7a6c 100644 --- a/drivers/net/ethernet/sfc/mcdi_pcol.h +++ b/drivers/net/ethernet/sfc/mcdi_pcol.h @@ -2574,8 +2574,58 @@ #define MC_CMD_MAC_RX_LANES01_DISP_ERR 0x39 /* enum */ #define MC_CMD_MAC_RX_LANES23_DISP_ERR 0x3a /* enum */ #define MC_CMD_MAC_RX_MATCH_FAULT 0x3b /* enum */ -#define MC_CMD_GMAC_DMABUF_START 0x40 /* enum */ -#define MC_CMD_GMAC_DMABUF_END 0x5f /* enum */ +/* enum: PM trunc_bb_overflow counter. Valid for EF10 with PM_AND_RXDP_COUNTERS + * capability only. + */ +#define MC_CMD_MAC_PM_TRUNC_BB_OVERFLOW 0x3c +/* enum: PM discard_bb_overflow counter. Valid for EF10 with + * PM_AND_RXDP_COUNTERS capability only. + */ +#define MC_CMD_MAC_PM_DISCARD_BB_OVERFLOW 0x3d +/* enum: PM trunc_vfifo_full counter. Valid for EF10 with PM_AND_RXDP_COUNTERS + * capability only. + */ +#define MC_CMD_MAC_PM_TRUNC_VFIFO_FULL 0x3e +/* enum: PM discard_vfifo_full counter. Valid for EF10 with + * PM_AND_RXDP_COUNTERS capability only. + */ +#define MC_CMD_MAC_PM_DISCARD_VFIFO_FULL 0x3f +/* enum: PM trunc_qbb counter. Valid for EF10 with PM_AND_RXDP_COUNTERS + * capability only. + */ +#define MC_CMD_MAC_PM_TRUNC_QBB 0x40 +/* enum: PM discard_qbb counter. Valid for EF10 with PM_AND_RXDP_COUNTERS + * capability only. + */ +#define MC_CMD_MAC_PM_DISCARD_QBB 0x41 +/* enum: PM discard_mapping counter. Valid for EF10 with PM_AND_RXDP_COUNTERS + * capability only. + */ +#define MC_CMD_MAC_PM_DISCARD_MAPPING 0x42 +/* enum: RXDP counter: Number of packets dropped due to the queue being + * disabled. Valid for EF10 with PM_AND_RXDP_COUNTERS capability only. + */ +#define MC_CMD_MAC_RXDP_Q_DISABLED_PKTS 0x43 +/* enum: RXDP counter: Number of packets dropped by the DICPU. Valid for EF10 + * with PM_AND_RXDP_COUNTERS capability only. + */ +#define MC_CMD_MAC_RXDP_DI_DROPPED_PKTS 0x45 +/* enum: RXDP counter: Number of non-host packets. Valid for EF10 with + * PM_AND_RXDP_COUNTERS capability only. + */ +#define MC_CMD_MAC_RXDP_STREAMING_PKTS 0x46 +/* enum: RXDP counter: Number of times an emergency descriptor fetch was + * performed. Valid for EF10 with PM_AND_RXDP_COUNTERS capability only. + */ +#define MC_CMD_MAC_RXDP_EMERGENCY_FETCH_CONDITIONS 0x47 +/* enum: RXDP counter: Number of times the DPCPU waited for an existing + * descriptor fetch. Valid for EF10 with PM_AND_RXDP_COUNTERS capability only. + */ +#define MC_CMD_MAC_RXDP_EMERGENCY_WAIT_CONDITIONS 0x48 +/* enum: Start of GMAC stats buffer space, for Siena only. */ +#define MC_CMD_GMAC_DMABUF_START 0x40 +/* enum: End of GMAC stats buffer space, for Siena only. */ +#define MC_CMD_GMAC_DMABUF_END 0x5f #define MC_CMD_MAC_GENERATION_END 0x60 /* enum */ #define MC_CMD_MAC_NSTATS 0x61 /* enum */ @@ -5065,6 +5115,8 @@ #define MC_CMD_GET_CAPABILITIES_OUT_RX_BATCHING_WIDTH 1 #define MC_CMD_GET_CAPABILITIES_OUT_MCAST_FILTER_CHAINING_LBN 26 #define MC_CMD_GET_CAPABILITIES_OUT_MCAST_FILTER_CHAINING_WIDTH 1 +#define MC_CMD_GET_CAPABILITIES_OUT_PM_AND_RXDP_COUNTERS_LBN 27 +#define MC_CMD_GET_CAPABILITIES_OUT_PM_AND_RXDP_COUNTERS_WIDTH 1 /* RxDPCPU firmware id. */ #define MC_CMD_GET_CAPABILITIES_OUT_RX_DPCPU_FW_ID_OFST 4 #define MC_CMD_GET_CAPABILITIES_OUT_RX_DPCPU_FW_ID_LEN 2 diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c index e7dbd2dd202e..9826594c8a48 100644 --- a/drivers/net/ethernet/sfc/nic.c +++ b/drivers/net/ethernet/sfc/nic.c @@ -469,8 +469,7 @@ size_t efx_nic_describe_stats(const struct efx_hw_stat_desc *desc, size_t count, * @count: Length of the @desc array * @mask: Bitmask of which elements of @desc are enabled * @stats: Buffer to update with the converted statistics. The length - * of this array must be at least the number of set bits in the - * first @count bits of @mask. + * of this array must be at least @count. * @dma_buf: DMA buffer containing hardware statistics * @accumulate: If set, the converted values will be added rather than * directly stored to the corresponding elements of @stats @@ -503,11 +502,9 @@ void efx_nic_update_stats(const struct efx_hw_stat_desc *desc, size_t count, } if (accumulate) - *stats += val; + stats[index] += val; else - *stats = val; + stats[index] = val; } - - ++stats; } } diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h index fda29d39032f..890bbbe8320e 100644 --- a/drivers/net/ethernet/sfc/nic.h +++ b/drivers/net/ethernet/sfc/nic.h @@ -386,6 +386,18 @@ enum { EF10_STAT_rx_align_error, EF10_STAT_rx_length_error, EF10_STAT_rx_nodesc_drops, + EF10_STAT_rx_pm_trunc_bb_overflow, + EF10_STAT_rx_pm_discard_bb_overflow, + EF10_STAT_rx_pm_trunc_vfifo_full, + EF10_STAT_rx_pm_discard_vfifo_full, + EF10_STAT_rx_pm_trunc_qbb, + EF10_STAT_rx_pm_discard_qbb, + EF10_STAT_rx_pm_discard_mapping, + EF10_STAT_rx_dp_q_disabled_packets, + EF10_STAT_rx_dp_di_dropped_packets, + EF10_STAT_rx_dp_streaming_packets, + EF10_STAT_rx_dp_emerg_fetch, + EF10_STAT_rx_dp_emerg_wait, EF10_STAT_COUNT }; diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h index 5730fe2445a6..98eedb90cdc3 100644 --- a/drivers/net/ethernet/smsc/smc91x.h +++ b/drivers/net/ethernet/smsc/smc91x.h @@ -1124,8 +1124,7 @@ static const char * chip_ids[ 16 ] = { void __iomem *__ioaddr = ioaddr; \ if (__len >= 2 && (unsigned long)__ptr & 2) { \ __len -= 2; \ - SMC_outw(*(u16 *)__ptr, ioaddr, \ - DATA_REG(lp)); \ + SMC_outsw(ioaddr, DATA_REG(lp), __ptr, 1); \ __ptr += 2; \ } \ if (SMC_CAN_USE_DATACS && lp->datacs) \ @@ -1133,8 +1132,7 @@ static const char * chip_ids[ 16 ] = { SMC_outsl(__ioaddr, DATA_REG(lp), __ptr, __len>>2); \ if (__len & 2) { \ __ptr += (__len & ~3); \ - SMC_outw(*((u16 *)__ptr), ioaddr, \ - DATA_REG(lp)); \ + SMC_outsw(ioaddr, DATA_REG(lp), __ptr, 1); \ } \ } else if (SMC_16BIT(lp)) \ SMC_outsw(ioaddr, DATA_REG(lp), p, (l) >> 1); \ diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 79974e31187a..cc3ce557e4aa 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -639,13 +639,6 @@ void cpsw_rx_handler(void *token, int len, int status) static irqreturn_t cpsw_interrupt(int irq, void *dev_id) { struct cpsw_priv *priv = dev_id; - u32 rx, tx, rx_thresh; - - rx_thresh = __raw_readl(&priv->wr_regs->rx_thresh_stat); - rx = __raw_readl(&priv->wr_regs->rx_stat); - tx = __raw_readl(&priv->wr_regs->tx_stat); - if (!rx_thresh && !rx && !tx) - return IRQ_NONE; cpsw_intr_disable(priv); if (priv->irq_enabled == true) { @@ -1169,9 +1162,9 @@ static int cpsw_ndo_open(struct net_device *ndev) } } + napi_enable(&priv->napi); cpdma_ctlr_start(priv->dma); cpsw_intr_enable(priv); - napi_enable(&priv->napi); cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX); cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX); @@ -1771,8 +1764,8 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, } data->mac_control = prop; - if (!of_property_read_u32(node, "dual_emac", &prop)) - data->dual_emac = prop; + if (of_property_read_bool(node, "dual_emac")) + data->dual_emac = 1; /* * Populate all the child nodes here... @@ -1782,7 +1775,7 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, if (ret) pr_warn("Doesn't have any child node\n"); - for_each_node_by_name(slave_node, "slave") { + for_each_child_of_node(node, slave_node) { struct cpsw_slave_data *slave_data = data->slave_data + i; const void *mac_addr = NULL; u32 phyid; @@ -1791,6 +1784,10 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, struct device_node *mdio_node; struct platform_device *mdio; + /* This is no slave child node, continue */ + if (strcmp(slave_node->name, "slave")) + continue; + parp = of_get_property(slave_node, "phy_id", &lenp); if ((parp == NULL) || (lenp != (sizeof(void *) * 2))) { pr_err("Missing slave[%d] phy_id property\n", i); diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index 67df09ea9d04..6a32ef9d63ae 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -876,8 +876,7 @@ static void emac_dev_mcast_set(struct net_device *ndev) netdev_mc_count(ndev) > EMAC_DEF_MAX_MULTICAST_ADDRESSES) { mbp_enable = (mbp_enable | EMAC_MBP_RXMCAST); emac_add_mcast(priv, EMAC_ALL_MULTI_SET, NULL); - } - if (!netdev_mc_empty(ndev)) { + } else if (!netdev_mc_empty(ndev)) { struct netdev_hw_addr *ha; mbp_enable = (mbp_enable | EMAC_MBP_RXMCAST); diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c index 0721e72f9299..5af1c3e5032a 100644 --- a/drivers/net/hamradio/yam.c +++ b/drivers/net/hamradio/yam.c @@ -975,7 +975,6 @@ static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) return -EINVAL; /* Cannot change this parameter when up */ if ((ym = kmalloc(sizeof(struct yamdrv_ioctl_mcs), GFP_KERNEL)) == NULL) return -ENOBUFS; - ym->bitrate = 9600; if (copy_from_user(ym, ifr->ifr_data, sizeof(struct yamdrv_ioctl_mcs))) { kfree(ym); return -EFAULT; diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c index 42e6deee6db5..0632d34905c7 100644 --- a/drivers/net/ieee802154/mrf24j40.c +++ b/drivers/net/ieee802154/mrf24j40.c @@ -82,7 +82,6 @@ struct mrf24j40 { struct mutex buffer_mutex; /* only used to protect buf */ struct completion tx_complete; - struct work_struct irqwork; u8 *buf; /* 3 bytes. Used for SPI single-register transfers. */ }; @@ -344,6 +343,8 @@ static int mrf24j40_tx(struct ieee802154_dev *dev, struct sk_buff *skb) if (ret) goto err; + INIT_COMPLETION(devrec->tx_complete); + /* Set TXNTRIG bit of TXNCON to send packet */ ret = read_short_reg(devrec, REG_TXNCON, &val); if (ret) @@ -354,8 +355,6 @@ static int mrf24j40_tx(struct ieee802154_dev *dev, struct sk_buff *skb) val |= 0x4; write_short_reg(devrec, REG_TXNCON, val); - INIT_COMPLETION(devrec->tx_complete); - /* Wait for the device to send the TX complete interrupt. */ ret = wait_for_completion_interruptible_timeout( &devrec->tx_complete, @@ -590,17 +589,6 @@ static struct ieee802154_ops mrf24j40_ops = { static irqreturn_t mrf24j40_isr(int irq, void *data) { struct mrf24j40 *devrec = data; - - disable_irq_nosync(irq); - - schedule_work(&devrec->irqwork); - - return IRQ_HANDLED; -} - -static void mrf24j40_isrwork(struct work_struct *work) -{ - struct mrf24j40 *devrec = container_of(work, struct mrf24j40, irqwork); u8 intstat; int ret; @@ -618,7 +606,7 @@ static void mrf24j40_isrwork(struct work_struct *work) mrf24j40_handle_rx(devrec); out: - enable_irq(devrec->spi->irq); + return IRQ_HANDLED; } static int mrf24j40_probe(struct spi_device *spi) @@ -642,7 +630,6 @@ static int mrf24j40_probe(struct spi_device *spi) mutex_init(&devrec->buffer_mutex); init_completion(&devrec->tx_complete); - INIT_WORK(&devrec->irqwork, mrf24j40_isrwork); devrec->spi = spi; spi_set_drvdata(spi, devrec); @@ -688,11 +675,12 @@ static int mrf24j40_probe(struct spi_device *spi) val &= ~0x3; /* Clear RX mode (normal) */ write_short_reg(devrec, REG_RXMCR, val); - ret = request_irq(spi->irq, - mrf24j40_isr, - IRQF_TRIGGER_FALLING, - dev_name(&spi->dev), - devrec); + ret = request_threaded_irq(spi->irq, + NULL, + mrf24j40_isr, + IRQF_TRIGGER_LOW|IRQF_ONESHOT, + dev_name(&spi->dev), + devrec); if (ret) { dev_err(printdev(devrec), "Unable to get IRQ"); @@ -721,7 +709,6 @@ static int mrf24j40_remove(struct spi_device *spi) dev_dbg(printdev(devrec), "remove\n"); free_irq(spi->irq, devrec); - flush_work(&devrec->irqwork); /* TODO: Is this the right call? */ ieee802154_unregister_device(devrec->dev); ieee802154_free_device(devrec->dev); /* TODO: Will ieee802154_free_device() wait until ->xmit() is diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index adeee615dd19..c9a15925a1f7 100644 --- a/drivers/net/netconsole.c +++ b/drivers/net/netconsole.c @@ -310,6 +310,7 @@ static ssize_t store_enabled(struct netconsole_target *nt, const char *buf, size_t count) { + unsigned long flags; int enabled; int err; @@ -324,9 +325,7 @@ static ssize_t store_enabled(struct netconsole_target *nt, return -EINVAL; } - mutex_lock(&nt->mutex); if (enabled) { /* 1 */ - /* * Skip netpoll_parse_options() -- all the attributes are * already configured via configfs. Just print them out. @@ -334,19 +333,22 @@ static ssize_t store_enabled(struct netconsole_target *nt, netpoll_print_options(&nt->np); err = netpoll_setup(&nt->np); - if (err) { - mutex_unlock(&nt->mutex); + if (err) return err; - } printk(KERN_INFO "netconsole: network logging started\n"); - } else { /* 0 */ + /* We need to disable the netconsole before cleaning it up + * otherwise we might end up in write_msg() with + * nt->np.dev == NULL and nt->enabled == 1 + */ + spin_lock_irqsave(&target_list_lock, flags); + nt->enabled = 0; + spin_unlock_irqrestore(&target_list_lock, flags); netpoll_cleanup(&nt->np); } nt->enabled = enabled; - mutex_unlock(&nt->mutex); return strnlen(buf, count); } @@ -563,8 +565,10 @@ static ssize_t netconsole_target_attr_store(struct config_item *item, struct netconsole_target_attr *na = container_of(attr, struct netconsole_target_attr, attr); + mutex_lock(&nt->mutex); if (na->store) ret = na->store(nt, buf, count); + mutex_unlock(&nt->mutex); return ret; } diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index dc920974204e..56178761ce93 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -438,17 +438,19 @@ phy_id_show(struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "0x%.8lx\n", (unsigned long)phydev->phy_id); } +static DEVICE_ATTR_RO(phy_id); -static struct device_attribute mdio_dev_attrs[] = { - __ATTR_RO(phy_id), - __ATTR_NULL +static struct attribute *mdio_dev_attrs[] = { + &dev_attr_phy_id.attr, + NULL, }; +ATTRIBUTE_GROUPS(mdio_dev); struct bus_type mdio_bus_type = { .name = "mdio_bus", .match = mdio_bus_match, .pm = MDIO_BUS_PM_OPS, - .dev_attrs = mdio_dev_attrs, + .dev_groups = mdio_dev_groups, }; EXPORT_SYMBOL(mdio_bus_type); diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 807815fc9968..7cb105c103fe 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1293,7 +1293,8 @@ static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile, if (unlikely(!noblock)) add_wait_queue(&tfile->wq.wait, &wait); while (len) { - current->state = TASK_INTERRUPTIBLE; + if (unlikely(!noblock)) + current->state = TASK_INTERRUPTIBLE; /* Read frames from the queue */ if (!(skb = skb_dequeue(&tfile->socket.sk->sk_receive_queue))) { @@ -1320,9 +1321,10 @@ static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile, break; } - current->state = TASK_RUNNING; - if (unlikely(!noblock)) + if (unlikely(!noblock)) { + current->state = TASK_RUNNING; remove_wait_queue(&tfile->wq.wait, &wait); + } return ret; } diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c index 3569293df872..8e8d0fcd4979 100644 --- a/drivers/net/usb/ax88179_178a.c +++ b/drivers/net/usb/ax88179_178a.c @@ -36,8 +36,8 @@ #define AX_RXHDR_L4_TYPE_TCP 16 #define AX_RXHDR_L3CSUM_ERR 2 #define AX_RXHDR_L4CSUM_ERR 1 -#define AX_RXHDR_CRC_ERR ((u32)BIT(31)) -#define AX_RXHDR_DROP_ERR ((u32)BIT(30)) +#define AX_RXHDR_CRC_ERR ((u32)BIT(29)) +#define AX_RXHDR_DROP_ERR ((u32)BIT(31)) #define AX_ACCESS_MAC 0x01 #define AX_ACCESS_PHY 0x02 #define AX_ACCESS_EEPROM 0x04 @@ -78,7 +78,6 @@ #define AX_MEDIUM_STATUS_MODE 0x22 #define AX_MEDIUM_GIGAMODE 0x01 #define AX_MEDIUM_FULL_DUPLEX 0x02 - #define AX_MEDIUM_ALWAYS_ONE 0x04 #define AX_MEDIUM_EN_125MHZ 0x08 #define AX_MEDIUM_RXFLOW_CTRLEN 0x10 #define AX_MEDIUM_TXFLOW_CTRLEN 0x20 @@ -1065,8 +1064,8 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf) /* Configure default medium type => giga */ *tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN | - AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_ALWAYS_ONE | - AX_MEDIUM_FULL_DUPLEX | AX_MEDIUM_GIGAMODE; + AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX | + AX_MEDIUM_GIGAMODE; ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, tmp16); @@ -1225,7 +1224,7 @@ static int ax88179_link_reset(struct usbnet *dev) } mode = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN | - AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_ALWAYS_ONE; + AX_MEDIUM_RXFLOW_CTRLEN; ax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS, 1, 1, &link_sts); @@ -1339,8 +1338,8 @@ static int ax88179_reset(struct usbnet *dev) /* Configure default medium type => giga */ *tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN | - AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_ALWAYS_ONE | - AX_MEDIUM_FULL_DUPLEX | AX_MEDIUM_GIGAMODE; + AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX | + AX_MEDIUM_GIGAMODE; ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE, 2, 2, tmp16); @@ -1406,6 +1405,19 @@ static const struct driver_info sitecom_info = { .tx_fixup = ax88179_tx_fixup, }; +static const struct driver_info samsung_info = { + .description = "Samsung USB Ethernet Adapter", + .bind = ax88179_bind, + .unbind = ax88179_unbind, + .status = ax88179_status, + .link_reset = ax88179_link_reset, + .reset = ax88179_reset, + .stop = ax88179_stop, + .flags = FLAG_ETHER | FLAG_FRAMING_AX, + .rx_fixup = ax88179_rx_fixup, + .tx_fixup = ax88179_tx_fixup, +}; + static const struct usb_device_id products[] = { { /* ASIX AX88179 10/100/1000 */ @@ -1418,7 +1430,11 @@ static const struct usb_device_id products[] = { }, { /* Sitecom USB 3.0 to Gigabit Adapter */ USB_DEVICE(0x0df6, 0x0072), - .driver_info = (unsigned long) &sitecom_info, + .driver_info = (unsigned long)&sitecom_info, +}, { + /* Samsung USB Ethernet Adapter */ + USB_DEVICE(0x04e8, 0xa100), + .driver_info = (unsigned long)&samsung_info, }, { }, }; diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 3d6aaf79d8b2..818ce90185b5 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -714,6 +714,7 @@ static const struct usb_device_id products[] = { {QMI_FIXED_INTF(0x2357, 0x0201, 4)}, /* TP-LINK HSUPA Modem MA180 */ {QMI_FIXED_INTF(0x2357, 0x9000, 4)}, /* TP-LINK MA260 */ {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */ + {QMI_FIXED_INTF(0x0b3c, 0xc005, 6)}, /* Olivetti Olicard 200 */ {QMI_FIXED_INTF(0x1e2d, 0x0060, 4)}, /* Cinterion PLxx */ /* 4. Gobi 1000 devices */ diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index bf94e10a37c8..90a429b7ebad 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1688,8 +1688,10 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) if (dev->can_dma_sg && !(info->flags & FLAG_SEND_ZLP) && !(info->flags & FLAG_MULTI_PACKET)) { dev->padding_pkt = kzalloc(1, GFP_KERNEL); - if (!dev->padding_pkt) + if (!dev->padding_pkt) { + status = -ENOMEM; goto out4; + } } status = register_netdev (net); diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index defec2b3c5a4..bbc9cb84ec1f 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -938,7 +938,9 @@ static int virtnet_set_queues(struct virtnet_info *vi, u16 queue_pairs) return -EINVAL; } else { vi->curr_queue_pairs = queue_pairs; - schedule_delayed_work(&vi->refill, 0); + /* virtnet_open() will refill when device is going to up. */ + if (dev->flags & IFF_UP) + schedule_delayed_work(&vi->refill, 0); } return 0; @@ -1128,6 +1130,7 @@ static int virtnet_cpu_callback(struct notifier_block *nfb, default: break; } + return NOTIFY_OK; } @@ -1689,6 +1692,8 @@ static int virtnet_freeze(struct virtio_device *vdev) struct virtnet_info *vi = vdev->priv; int i; + unregister_hotcpu_notifier(&vi->nb); + /* Prevent config work handler from accessing the device */ mutex_lock(&vi->config_lock); vi->config_enable = false; @@ -1733,7 +1738,13 @@ static int virtnet_restore(struct virtio_device *vdev) vi->config_enable = true; mutex_unlock(&vi->config_lock); + rtnl_lock(); virtnet_set_queues(vi, vi->curr_queue_pairs); + rtnl_unlock(); + + err = register_hotcpu_notifier(&vi->nb); + if (err) + return err; return 0; } diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c index 3f0c4f268751..bcfff0d62de4 100644 --- a/drivers/net/wan/farsync.c +++ b/drivers/net/wan/farsync.c @@ -1972,6 +1972,7 @@ fst_get_iface(struct fst_card_info *card, struct fst_port_info *port, } i = port->index; + memset(&sync, 0, sizeof(sync)); sync.clock_rate = FST_RDL(card, portConfig[i].lineSpeed); /* Lucky card and linux use same encoding here */ sync.clock_type = FST_RDB(card, portConfig[i].internalClock) == diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c index 5bbcb5e3ee0c..388ddf60a66d 100644 --- a/drivers/net/wan/sbni.c +++ b/drivers/net/wan/sbni.c @@ -148,10 +148,6 @@ static int enslave( struct net_device *, struct net_device * ); static int emancipate( struct net_device * ); #endif -#ifdef __i386__ -#define ASM_CRC 1 -#endif - static const char version[] = "Granch SBNI12 driver ver 5.0.1 Jun 22 2001 Denis I.Timofeev.\n"; @@ -1551,88 +1547,6 @@ __setup( "sbni=", sbni_setup ); /* -------------------------------------------------------------------------- */ -#ifdef ASM_CRC - -static u32 -calc_crc32( u32 crc, u8 *p, u32 len ) -{ - register u32 _crc; - _crc = crc; - - __asm__ __volatile__ ( - "xorl %%ebx, %%ebx\n" - "movl %2, %%esi\n" - "movl %3, %%ecx\n" - "movl $crc32tab, %%edi\n" - "shrl $2, %%ecx\n" - "jz 1f\n" - - ".align 4\n" - "0:\n" - "movb %%al, %%bl\n" - "movl (%%esi), %%edx\n" - "shrl $8, %%eax\n" - "xorb %%dl, %%bl\n" - "shrl $8, %%edx\n" - "xorl (%%edi,%%ebx,4), %%eax\n" - - "movb %%al, %%bl\n" - "shrl $8, %%eax\n" - "xorb %%dl, %%bl\n" - "shrl $8, %%edx\n" - "xorl (%%edi,%%ebx,4), %%eax\n" - - "movb %%al, %%bl\n" - "shrl $8, %%eax\n" - "xorb %%dl, %%bl\n" - "movb %%dh, %%dl\n" - "xorl (%%edi,%%ebx,4), %%eax\n" - - "movb %%al, %%bl\n" - "shrl $8, %%eax\n" - "xorb %%dl, %%bl\n" - "addl $4, %%esi\n" - "xorl (%%edi,%%ebx,4), %%eax\n" - - "decl %%ecx\n" - "jnz 0b\n" - - "1:\n" - "movl %3, %%ecx\n" - "andl $3, %%ecx\n" - "jz 2f\n" - - "movb %%al, %%bl\n" - "shrl $8, %%eax\n" - "xorb (%%esi), %%bl\n" - "xorl (%%edi,%%ebx,4), %%eax\n" - - "decl %%ecx\n" - "jz 2f\n" - - "movb %%al, %%bl\n" - "shrl $8, %%eax\n" - "xorb 1(%%esi), %%bl\n" - "xorl (%%edi,%%ebx,4), %%eax\n" - - "decl %%ecx\n" - "jz 2f\n" - - "movb %%al, %%bl\n" - "shrl $8, %%eax\n" - "xorb 2(%%esi), %%bl\n" - "xorl (%%edi,%%ebx,4), %%eax\n" - "2:\n" - : "=a" (_crc) - : "0" (_crc), "g" (p), "g" (len) - : "bx", "cx", "dx", "si", "di" - ); - - return _crc; -} - -#else /* ASM_CRC */ - static u32 calc_crc32( u32 crc, u8 *p, u32 len ) { @@ -1642,9 +1556,6 @@ calc_crc32( u32 crc, u8 *p, u32 len ) return crc; } -#endif /* ASM_CRC */ - - static u32 crc32tab[] __attribute__ ((aligned(8))) = { 0xD202EF8D, 0xA505DF1B, 0x3C0C8EA1, 0x4B0BBE37, 0xD56F2B94, 0xA2681B02, 0x3B614AB8, 0x4C667A2E, diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c index 6a24a5a70cc7..4c0a69779b89 100644 --- a/drivers/net/wan/wanxl.c +++ b/drivers/net/wan/wanxl.c @@ -355,6 +355,7 @@ static int wanxl_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) ifr->ifr_settings.size = size; /* data size wanted */ return -ENOBUFS; } + memset(&line, 0, sizeof(line)); line.clock_type = get_status(port)->clocking; line.clock_rate = 0; line.loopback = 0; diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index e4f65900132d..709301f88dcd 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -208,6 +208,7 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start) struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); unsigned long flags; + int i; if (ath_startrecv(sc) != 0) { ath_err(common, "Unable to restart recv logic\n"); @@ -235,6 +236,15 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start) } work: ath_restart_work(sc); + + for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { + if (!ATH_TXQ_SETUP(sc, i)) + continue; + + spin_lock_bh(&sc->tx.txq[i].axq_lock); + ath_txq_schedule(sc, &sc->tx.txq[i]); + spin_unlock_bh(&sc->tx.txq[i].axq_lock); + } } ieee80211_wake_queues(sc->hw); @@ -539,21 +549,10 @@ chip_reset: static int ath_reset(struct ath_softc *sc) { - int i, r; + int r; ath9k_ps_wakeup(sc); - r = ath_reset_internal(sc, NULL); - - for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) { - if (!ATH_TXQ_SETUP(sc, i)) - continue; - - spin_lock_bh(&sc->tx.txq[i].axq_lock); - ath_txq_schedule(sc, &sc->tx.txq[i]); - spin_unlock_bh(&sc->tx.txq[i].axq_lock); - } - ath9k_ps_restore(sc); return r; diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 5ac713d2ff5d..dd30452df966 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1969,15 +1969,18 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq, static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq, struct ath_atx_tid *tid, struct sk_buff *skb) { + struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); struct ath_frame_info *fi = get_frame_info(skb); struct list_head bf_head; - struct ath_buf *bf; - - bf = fi->bf; + struct ath_buf *bf = fi->bf; INIT_LIST_HEAD(&bf_head); list_add_tail(&bf->list, &bf_head); bf->bf_state.bf_type = 0; + if (tid && (tx_info->flags & IEEE80211_TX_CTL_AMPDU)) { + bf->bf_state.bf_type = BUF_AMPDU; + ath_tx_addto_baw(sc, tid, bf); + } bf->bf_next = NULL; bf->bf_lastbf = bf; diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c index 899cad34ccd3..755a0c8edfe1 100644 --- a/drivers/net/wireless/cw1200/cw1200_spi.c +++ b/drivers/net/wireless/cw1200/cw1200_spi.c @@ -237,7 +237,9 @@ static irqreturn_t cw1200_spi_irq_handler(int irq, void *dev_id) struct hwbus_priv *self = dev_id; if (self->core) { + cw1200_spi_lock(self); cw1200_irq_handler(self->core); + cw1200_spi_unlock(self); return IRQ_HANDLED; } else { return IRQ_NONE; diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index 30d45e2fc193..8ac305be68f4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -240,6 +240,12 @@ const struct iwl_cfg iwl6035_2agn_cfg = { .ht_params = &iwl6000_ht_params, }; +const struct iwl_cfg iwl6035_2agn_sff_cfg = { + .name = "Intel(R) Centrino(R) Ultimate-N 6235 AGN", + IWL_DEVICE_6035, + .ht_params = &iwl6000_ht_params, +}; + const struct iwl_cfg iwl1030_bgn_cfg = { .name = "Intel(R) Centrino(R) Wireless-N 1030 BGN", IWL_DEVICE_6030, diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h index e4d370bff306..b03c25e14903 100644 --- a/drivers/net/wireless/iwlwifi/iwl-config.h +++ b/drivers/net/wireless/iwlwifi/iwl-config.h @@ -280,6 +280,7 @@ extern const struct iwl_cfg iwl2000_2bgn_cfg; extern const struct iwl_cfg iwl2000_2bgn_d_cfg; extern const struct iwl_cfg iwl2030_2bgn_cfg; extern const struct iwl_cfg iwl6035_2agn_cfg; +extern const struct iwl_cfg iwl6035_2agn_sff_cfg; extern const struct iwl_cfg iwl105_bgn_cfg; extern const struct iwl_cfg iwl105_bgn_d_cfg; extern const struct iwl_cfg iwl135_bgn_cfg; diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index dd57a36ecb10..80b47508647c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -601,8 +601,10 @@ static inline int iwl_trans_send_cmd(struct iwl_trans *trans, { int ret; - WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, - "%s bad state = %d", __func__, trans->state); + if (trans->state != IWL_TRANS_FW_ALIVE) { + IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); + return -EIO; + } if (!(cmd->flags & CMD_ASYNC)) lock_map_acquire_read(&trans->sync_cmd_lockdep_map); diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c index 21407a353a3b..d58e393324ef 100644 --- a/drivers/net/wireless/iwlwifi/mvm/power.c +++ b/drivers/net/wireless/iwlwifi/mvm/power.c @@ -273,7 +273,10 @@ static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, if (!mvmvif->queue_params[ac].uapsd) continue; - cmd->flags |= cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK); + if (mvm->cur_ucode != IWL_UCODE_WOWLAN) + cmd->flags |= + cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK); + cmd->uapsd_ac_flags |= BIT(ac); /* QNDP TID - the highest TID with no admission control */ diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c index 9a7ab8495300..621fb71f282a 100644 --- a/drivers/net/wireless/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/iwlwifi/mvm/scan.c @@ -394,6 +394,11 @@ static bool iwl_mvm_scan_abort_notif(struct iwl_notif_wait_data *notif_wait, return false; } + /* + * If scan cannot be aborted, it means that we had a + * SCAN_COMPLETE_NOTIFICATION in the pipe and it called + * ieee80211_scan_completed already. + */ IWL_DEBUG_SCAN(mvm, "Scan cannot be aborted, exit now: %d\n", *resp); return true; @@ -417,14 +422,19 @@ void iwl_mvm_cancel_scan(struct iwl_mvm *mvm) SCAN_COMPLETE_NOTIFICATION }; int ret; + if (mvm->scan_status == IWL_MVM_SCAN_NONE) + return; + iwl_init_notification_wait(&mvm->notif_wait, &wait_scan_abort, scan_abort_notif, ARRAY_SIZE(scan_abort_notif), iwl_mvm_scan_abort_notif, NULL); - ret = iwl_mvm_send_cmd_pdu(mvm, SCAN_ABORT_CMD, CMD_SYNC, 0, NULL); + ret = iwl_mvm_send_cmd_pdu(mvm, SCAN_ABORT_CMD, + CMD_SYNC | CMD_SEND_IN_RFKILL, 0, NULL); if (ret) { IWL_ERR(mvm, "Couldn't send SCAN_ABORT_CMD: %d\n", ret); + /* mac80211's state will be cleaned in the fw_restart flow */ goto out_remove_notif; } diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c index dc02cb9792af..26108a1a29fa 100644 --- a/drivers/net/wireless/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/iwlwifi/pcie/drv.c @@ -139,13 +139,16 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { /* 6x00 Series */ {IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg)}, + {IWL_PCI_DEVICE(0x422B, 0x1108, iwl6000_3agn_cfg)}, {IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg)}, + {IWL_PCI_DEVICE(0x422B, 0x1128, iwl6000_3agn_cfg)}, {IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg)}, {IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg)}, {IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg)}, {IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg)}, {IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg)}, {IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg)}, + {IWL_PCI_DEVICE(0x4238, 0x1118, iwl6000_3agn_cfg)}, {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)}, {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)}, @@ -153,12 +156,16 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { {IWL_PCI_DEVICE(0x0082, 0x1301, iwl6005_2agn_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x1306, iwl6005_2abg_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x1307, iwl6005_2bg_cfg)}, + {IWL_PCI_DEVICE(0x0082, 0x1308, iwl6005_2agn_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x1321, iwl6005_2agn_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x1326, iwl6005_2abg_cfg)}, + {IWL_PCI_DEVICE(0x0082, 0x1328, iwl6005_2agn_cfg)}, {IWL_PCI_DEVICE(0x0085, 0x1311, iwl6005_2agn_cfg)}, + {IWL_PCI_DEVICE(0x0085, 0x1318, iwl6005_2agn_cfg)}, {IWL_PCI_DEVICE(0x0085, 0x1316, iwl6005_2abg_cfg)}, {IWL_PCI_DEVICE(0x0082, 0xC020, iwl6005_2agn_sff_cfg)}, {IWL_PCI_DEVICE(0x0085, 0xC220, iwl6005_2agn_sff_cfg)}, + {IWL_PCI_DEVICE(0x0085, 0xC228, iwl6005_2agn_sff_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x4820, iwl6005_2agn_d_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x1304, iwl6005_2agn_mow1_cfg)},/* low 5GHz active */ {IWL_PCI_DEVICE(0x0082, 0x1305, iwl6005_2agn_mow2_cfg)},/* high 5GHz active */ @@ -240,8 +247,11 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { /* 6x35 Series */ {IWL_PCI_DEVICE(0x088E, 0x4060, iwl6035_2agn_cfg)}, + {IWL_PCI_DEVICE(0x088E, 0x406A, iwl6035_2agn_sff_cfg)}, {IWL_PCI_DEVICE(0x088F, 0x4260, iwl6035_2agn_cfg)}, + {IWL_PCI_DEVICE(0x088F, 0x426A, iwl6035_2agn_sff_cfg)}, {IWL_PCI_DEVICE(0x088E, 0x4460, iwl6035_2agn_cfg)}, + {IWL_PCI_DEVICE(0x088E, 0x446A, iwl6035_2agn_sff_cfg)}, {IWL_PCI_DEVICE(0x088E, 0x4860, iwl6035_2agn_cfg)}, {IWL_PCI_DEVICE(0x088F, 0x5260, iwl6035_2agn_cfg)}, @@ -260,54 +270,86 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { #if IS_ENABLED(CONFIG_IWLMVM) /* 7000 Series */ {IWL_PCI_DEVICE(0x08B1, 0x4070, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4072, iwl7260_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x4170, iwl7260_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x4060, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x406A, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x4160, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x4062, iwl7260_n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x4162, iwl7260_n_cfg)}, {IWL_PCI_DEVICE(0x08B2, 0x4270, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0x4272, iwl7260_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B2, 0x4260, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0x426A, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B2, 0x4262, iwl7260_n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x4470, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4472, iwl7260_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x4460, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x446A, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x4462, iwl7260_n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x4870, iwl7260_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x486E, iwl7260_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x4A70, iwl7260_2ac_cfg_high_temp)}, {IWL_PCI_DEVICE(0x08B1, 0x4A6E, iwl7260_2ac_cfg_high_temp)}, {IWL_PCI_DEVICE(0x08B1, 0x4A6C, iwl7260_2ac_cfg_high_temp)}, + {IWL_PCI_DEVICE(0x08B1, 0x4570, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4560, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0x4370, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0x4360, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x5070, iwl7260_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x4020, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x402A, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B2, 0x4220, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0x4420, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0xC070, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC072, iwl7260_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0xC170, iwl7260_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0xC060, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC06A, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0xC160, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0xC062, iwl7260_n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0xC162, iwl7260_n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC770, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC760, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B2, 0xC270, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0xC272, iwl7260_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B2, 0xC260, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0xC26A, iwl7260_n_cfg)}, {IWL_PCI_DEVICE(0x08B2, 0xC262, iwl7260_n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0xC470, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC472, iwl7260_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0xC460, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0xC462, iwl7260_n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC570, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC560, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0xC370, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC360, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0xC020, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC02A, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B2, 0xC220, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0xC420, iwl7260_2n_cfg)}, /* 3160 Series */ {IWL_PCI_DEVICE(0x08B3, 0x0070, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x0072, iwl3160_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x0170, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x0172, iwl3160_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x0060, iwl3160_2n_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x0062, iwl3160_n_cfg)}, {IWL_PCI_DEVICE(0x08B4, 0x0270, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B4, 0x0272, iwl3160_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x0470, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x0472, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B4, 0x0370, iwl3160_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x8070, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x8072, iwl3160_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x8170, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x8172, iwl3160_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x8060, iwl3160_2n_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x8062, iwl3160_n_cfg)}, {IWL_PCI_DEVICE(0x08B4, 0x8270, iwl3160_2ac_cfg)}, {IWL_PCI_DEVICE(0x08B3, 0x8470, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x8570, iwl3160_2ac_cfg)}, #endif /* CONFIG_IWLMVM */ {0} diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index bad95d28d50d..c3f904d422b0 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -1401,6 +1401,10 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, spin_lock_init(&trans_pcie->reg_lock); init_waitqueue_head(&trans_pcie->ucode_write_waitq); + err = pci_enable_device(pdev); + if (err) + goto out_no_pci; + if (!cfg->base_params->pcie_l1_allowed) { /* * W/A - seems to solve weird behavior. We need to remove this @@ -1412,10 +1416,6 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, PCIE_LINK_STATE_CLKPM); } - err = pci_enable_device(pdev); - if (err) - goto out_no_pci; - pci_set_master(pdev); err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36)); diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c index f45eb29c2ede..1424335163b9 100644 --- a/drivers/net/wireless/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/iwlwifi/pcie/tx.c @@ -1102,6 +1102,8 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, int fifo, * non-AGG queue. */ iwl_clear_bits_prph(trans, SCD_AGGR_SEL, BIT(txq_id)); + + ssn = trans_pcie->txq[txq_id].q.read_ptr; } /* Place first TFD at index corresponding to start sequence number. diff --git a/drivers/net/wireless/mwifiex/join.c b/drivers/net/wireless/mwifiex/join.c index 9d7c0e6c4fc7..37f873bb342f 100644 --- a/drivers/net/wireless/mwifiex/join.c +++ b/drivers/net/wireless/mwifiex/join.c @@ -1422,13 +1422,19 @@ static int mwifiex_deauthenticate_infra(struct mwifiex_private *priv, u8 *mac) */ int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac) { + int ret = 0; + if (!priv->media_connected) return 0; switch (priv->bss_mode) { case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_P2P_CLIENT: - return mwifiex_deauthenticate_infra(priv, mac); + ret = mwifiex_deauthenticate_infra(priv, mac); + if (ret) + cfg80211_disconnected(priv->netdev, 0, NULL, 0, + GFP_KERNEL); + break; case NL80211_IFTYPE_ADHOC: return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_AD_HOC_STOP, @@ -1440,7 +1446,7 @@ int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac) break; } - return 0; + return ret; } EXPORT_SYMBOL_GPL(mwifiex_deauthenticate); diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c index fd778337deee..c2b91f566e05 100644 --- a/drivers/net/wireless/mwifiex/main.c +++ b/drivers/net/wireless/mwifiex/main.c @@ -358,10 +358,12 @@ process_start: } } while (true); - if ((adapter->int_status) || IS_CARD_RX_RCVD(adapter)) + spin_lock_irqsave(&adapter->main_proc_lock, flags); + if ((adapter->int_status) || IS_CARD_RX_RCVD(adapter)) { + spin_unlock_irqrestore(&adapter->main_proc_lock, flags); goto process_start; + } - spin_lock_irqsave(&adapter->main_proc_lock, flags); adapter->mwifiex_processing = false; spin_unlock_irqrestore(&adapter->main_proc_lock, flags); diff --git a/drivers/net/wireless/mwifiex/sta_event.c b/drivers/net/wireless/mwifiex/sta_event.c index 8b057524b252..8c351f71f72f 100644 --- a/drivers/net/wireless/mwifiex/sta_event.c +++ b/drivers/net/wireless/mwifiex/sta_event.c @@ -118,7 +118,8 @@ mwifiex_reset_connect_state(struct mwifiex_private *priv, u16 reason_code) dev_dbg(adapter->dev, "info: successfully disconnected from %pM: reason code %d\n", priv->cfg_bssid, reason_code); - if (priv->bss_mode == NL80211_IFTYPE_STATION) { + if (priv->bss_mode == NL80211_IFTYPE_STATION || + priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) { cfg80211_disconnected(priv->netdev, reason_code, NULL, 0, GFP_KERNEL); } diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c index 76d95deb274b..dc49e525ae5e 100644 --- a/drivers/net/wireless/rt2x00/rt2x00pci.c +++ b/drivers/net/wireless/rt2x00/rt2x00pci.c @@ -105,13 +105,11 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct rt2x00_ops *ops) goto exit_release_regions; } - pci_enable_msi(pci_dev); - hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw); if (!hw) { rt2x00_probe_err("Failed to allocate hardware\n"); retval = -ENOMEM; - goto exit_disable_msi; + goto exit_release_regions; } pci_set_drvdata(pci_dev, hw); @@ -152,9 +150,6 @@ exit_free_reg: exit_free_device: ieee80211_free_hw(hw); -exit_disable_msi: - pci_disable_msi(pci_dev); - exit_release_regions: pci_release_regions(pci_dev); @@ -179,8 +174,6 @@ void rt2x00pci_remove(struct pci_dev *pci_dev) rt2x00pci_free_reg(rt2x00dev); ieee80211_free_hw(hw); - pci_disable_msi(pci_dev); - /* * Free the PCI device data. */ diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c index 763cf1defab5..5a060e537fbe 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c @@ -343,7 +343,8 @@ bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw, (bool)GET_RX_DESC_PAGGR(pdesc)); rx_status->mactime = GET_RX_DESC_TSFL(pdesc); if (phystatus) { - p_drvinfo = (struct rx_fwinfo_92c *)(pdesc + RTL_RX_DESC_SIZE); + p_drvinfo = (struct rx_fwinfo_92c *)(skb->data + + stats->rx_bufshift); rtl92c_translate_rx_signal_stuff(hw, skb, stats, pdesc, p_drvinfo); } diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h index 5715318d6bab..400fea1de080 100644 --- a/drivers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -163,6 +163,7 @@ struct xenvif { unsigned long credit_usec; unsigned long remaining_credit; struct timer_list credit_timeout; + u64 credit_window_start; /* Statistics */ unsigned long rx_gso_checksum_fixup; diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index 01bb854c7f62..459935a6bfae 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -312,8 +312,7 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid, vif->credit_bytes = vif->remaining_credit = ~0UL; vif->credit_usec = 0UL; init_timer(&vif->credit_timeout); - /* Initialize 'expires' now: it's used to track the credit window. */ - vif->credit_timeout.expires = jiffies; + vif->credit_window_start = get_jiffies_64(); dev->netdev_ops = &xenvif_netdev_ops; dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO; diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index f3e591c611de..900da4b243ad 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -1185,9 +1185,8 @@ out: static bool tx_credit_exceeded(struct xenvif *vif, unsigned size) { - unsigned long now = jiffies; - unsigned long next_credit = - vif->credit_timeout.expires + + u64 now = get_jiffies_64(); + u64 next_credit = vif->credit_window_start + msecs_to_jiffies(vif->credit_usec / 1000); /* Timer could already be pending in rare cases. */ @@ -1195,8 +1194,8 @@ static bool tx_credit_exceeded(struct xenvif *vif, unsigned size) return true; /* Passed the point where we can replenish credit? */ - if (time_after_eq(now, next_credit)) { - vif->credit_timeout.expires = now; + if (time_after_eq64(now, next_credit)) { + vif->credit_window_start = now; tx_add_credit(vif); } @@ -1208,6 +1207,7 @@ static bool tx_credit_exceeded(struct xenvif *vif, unsigned size) tx_credit_callback; mod_timer(&vif->credit_timeout, next_credit); + vif->credit_window_start = next_credit; return true; } diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index b45bce20ad76..1b08d8798372 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c @@ -39,11 +39,15 @@ static int connect_rings(struct backend_info *); static void connect(struct backend_info *); static void backend_create_xenvif(struct backend_info *be); static void unregister_hotplug_status_watch(struct backend_info *be); +static void set_backend_state(struct backend_info *be, + enum xenbus_state state); static int netback_remove(struct xenbus_device *dev) { struct backend_info *be = dev_get_drvdata(&dev->dev); + set_backend_state(be, XenbusStateClosed); + unregister_hotplug_status_watch(be); if (be->vif) { kobject_uevent(&dev->dev.kobj, KOBJ_OFFLINE); diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig index 9d2009a9004d..78cc76053328 100644 --- a/drivers/of/Kconfig +++ b/drivers/of/Kconfig @@ -74,10 +74,4 @@ config OF_MTD depends on MTD def_bool y -config OF_RESERVED_MEM - depends on OF_FLATTREE && (DMA_CMA || (HAVE_GENERIC_DMA_COHERENT && HAVE_MEMBLOCK)) - def_bool y - help - Initialization code for DMA reserved memory - endmenu # OF diff --git a/drivers/of/Makefile b/drivers/of/Makefile index ed9660adad77..efd05102c405 100644 --- a/drivers/of/Makefile +++ b/drivers/of/Makefile @@ -9,4 +9,3 @@ obj-$(CONFIG_OF_MDIO) += of_mdio.o obj-$(CONFIG_OF_PCI) += of_pci.o obj-$(CONFIG_OF_PCI_IRQ) += of_pci_irq.o obj-$(CONFIG_OF_MTD) += of_mtd.o -obj-$(CONFIG_OF_RESERVED_MEM) += of_reserved_mem.o diff --git a/drivers/of/base.c b/drivers/of/base.c index 865d3f66c86b..7d4c70f859e3 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -303,10 +303,8 @@ struct device_node *of_get_cpu_node(int cpu, unsigned int *thread) struct device_node *cpun, *cpus; cpus = of_find_node_by_path("/cpus"); - if (!cpus) { - pr_warn("Missing cpus node, bailing out\n"); + if (!cpus) return NULL; - } for_each_child_of_node(cpus, cpun) { if (of_node_cmp(cpun->type, "cpu")) diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 229dd9d69e18..a4fa9ad31b8f 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -18,7 +18,6 @@ #include <linux/string.h> #include <linux/errno.h> #include <linux/slab.h> -#include <linux/random.h> #include <asm/setup.h> /* for COMMAND_LINE_SIZE */ #ifdef CONFIG_PPC @@ -803,14 +802,3 @@ void __init unflatten_device_tree(void) } #endif /* CONFIG_OF_EARLY_FLATTREE */ - -/* Feed entire flattened device tree into the random pool */ -static int __init add_fdt_randomness(void) -{ - if (initial_boot_params) - add_device_randomness(initial_boot_params, - be32_to_cpu(initial_boot_params->totalsize)); - - return 0; -} -core_initcall(add_fdt_randomness); diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c deleted file mode 100644 index 0fe40c7d6904..000000000000 --- a/drivers/of/of_reserved_mem.c +++ /dev/null @@ -1,173 +0,0 @@ -/* - * Device tree based initialization code for reserved memory. - * - * Copyright (c) 2013 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * Author: Marek Szyprowski <m.szyprowski@samsung.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License or (at your optional) any later version of the license. - */ - -#include <linux/memblock.h> -#include <linux/err.h> -#include <linux/of.h> -#include <linux/of_fdt.h> -#include <linux/of_platform.h> -#include <linux/mm.h> -#include <linux/sizes.h> -#include <linux/mm_types.h> -#include <linux/dma-contiguous.h> -#include <linux/dma-mapping.h> -#include <linux/of_reserved_mem.h> - -#define MAX_RESERVED_REGIONS 16 -struct reserved_mem { - phys_addr_t base; - unsigned long size; - struct cma *cma; - char name[32]; -}; -static struct reserved_mem reserved_mem[MAX_RESERVED_REGIONS]; -static int reserved_mem_count; - -static int __init fdt_scan_reserved_mem(unsigned long node, const char *uname, - int depth, void *data) -{ - struct reserved_mem *rmem = &reserved_mem[reserved_mem_count]; - phys_addr_t base, size; - int is_cma, is_reserved; - unsigned long len; - const char *status; - __be32 *prop; - - is_cma = IS_ENABLED(CONFIG_DMA_CMA) && - of_flat_dt_is_compatible(node, "linux,contiguous-memory-region"); - is_reserved = of_flat_dt_is_compatible(node, "reserved-memory-region"); - - if (!is_reserved && !is_cma) { - /* ignore node and scan next one */ - return 0; - } - - status = of_get_flat_dt_prop(node, "status", &len); - if (status && strcmp(status, "okay") != 0) { - /* ignore disabled node nad scan next one */ - return 0; - } - - prop = of_get_flat_dt_prop(node, "reg", &len); - if (!prop || (len < (dt_root_size_cells + dt_root_addr_cells) * - sizeof(__be32))) { - pr_err("Reserved mem: node %s, incorrect \"reg\" property\n", - uname); - /* ignore node and scan next one */ - return 0; - } - base = dt_mem_next_cell(dt_root_addr_cells, &prop); - size = dt_mem_next_cell(dt_root_size_cells, &prop); - - if (!size) { - /* ignore node and scan next one */ - return 0; - } - - pr_info("Reserved mem: found %s, memory base %lx, size %ld MiB\n", - uname, (unsigned long)base, (unsigned long)size / SZ_1M); - - if (reserved_mem_count == ARRAY_SIZE(reserved_mem)) - return -ENOSPC; - - rmem->base = base; - rmem->size = size; - strlcpy(rmem->name, uname, sizeof(rmem->name)); - - if (is_cma) { - struct cma *cma; - if (dma_contiguous_reserve_area(size, base, 0, &cma) == 0) { - rmem->cma = cma; - reserved_mem_count++; - if (of_get_flat_dt_prop(node, - "linux,default-contiguous-region", - NULL)) - dma_contiguous_set_default(cma); - } - } else if (is_reserved) { - if (memblock_remove(base, size) == 0) - reserved_mem_count++; - else - pr_err("Failed to reserve memory for %s\n", uname); - } - - return 0; -} - -static struct reserved_mem *get_dma_memory_region(struct device *dev) -{ - struct device_node *node; - const char *name; - int i; - - node = of_parse_phandle(dev->of_node, "memory-region", 0); - if (!node) - return NULL; - - name = kbasename(node->full_name); - for (i = 0; i < reserved_mem_count; i++) - if (strcmp(name, reserved_mem[i].name) == 0) - return &reserved_mem[i]; - return NULL; -} - -/** - * of_reserved_mem_device_init() - assign reserved memory region to given device - * - * This function assign memory region pointed by "memory-region" device tree - * property to the given device. - */ -void of_reserved_mem_device_init(struct device *dev) -{ - struct reserved_mem *region = get_dma_memory_region(dev); - if (!region) - return; - - if (region->cma) { - dev_set_cma_area(dev, region->cma); - pr_info("Assigned CMA %s to %s device\n", region->name, - dev_name(dev)); - } else { - if (dma_declare_coherent_memory(dev, region->base, region->base, - region->size, DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE) != 0) - pr_info("Declared reserved memory %s to %s device\n", - region->name, dev_name(dev)); - } -} - -/** - * of_reserved_mem_device_release() - release reserved memory device structures - * - * This function releases structures allocated for memory region handling for - * the given device. - */ -void of_reserved_mem_device_release(struct device *dev) -{ - struct reserved_mem *region = get_dma_memory_region(dev); - if (!region && !region->cma) - dma_release_declared_memory(dev); -} - -/** - * early_init_dt_scan_reserved_mem() - create reserved memory regions - * - * This function grabs memory from early allocator for device exclusive use - * defined in device tree structures. It should be called by arch specific code - * once the early allocator (memblock) has been activated and all other - * subsystems have already allocated/reserved memory. - */ -void __init early_init_dt_scan_reserved_mem(void) -{ - of_scan_flat_dt_by_path("/memory/reserved-memory", - fdt_scan_reserved_mem, NULL); -} diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 9b439ac63d8e..f6dcde220821 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -21,7 +21,6 @@ #include <linux/of_device.h> #include <linux/of_irq.h> #include <linux/of_platform.h> -#include <linux/of_reserved_mem.h> #include <linux/platform_device.h> const struct of_device_id of_default_bus_match_table[] = { @@ -219,8 +218,6 @@ static struct platform_device *of_platform_device_create_pdata( dev->dev.bus = &platform_bus_type; dev->dev.platform_data = platform_data; - of_reserved_mem_device_init(&dev->dev); - /* We do not fill the DMA ops for platform devices by default. * This is currently the responsibility of the platform code * to do such, possibly using a device notifier @@ -228,7 +225,6 @@ static struct platform_device *of_platform_device_create_pdata( if (of_device_add(dev) != 0) { platform_device_put(dev); - of_reserved_mem_device_release(&dev->dev); return NULL; } diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index 0b7d23b4ad95..1ea75236a15f 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -552,9 +552,8 @@ static void __ref enable_slot(struct acpiphp_slot *slot) struct acpiphp_func *func; int max, pass; LIST_HEAD(add_list); - int nr_found; - nr_found = acpiphp_rescan_slot(slot); + acpiphp_rescan_slot(slot); max = acpiphp_max_busnr(bus); for (pass = 0; pass < 2; pass++) { list_for_each_entry(dev, &bus->devices, bus_list) { @@ -574,9 +573,6 @@ static void __ref enable_slot(struct acpiphp_slot *slot) } } __pci_bus_assign_resources(bus, &add_list, NULL); - /* Nothing more to do here if there are no new devices on this bus. */ - if (!nr_found && (slot->flags & SLOT_ENABLED)) - return; acpiphp_sanitize_bus(bus); acpiphp_set_hpp_values(bus); @@ -994,14 +990,16 @@ void acpiphp_enumerate_slots(struct pci_bus *bus) /* * This bridge should have been registered as a hotplug function - * under its parent, so the context has to be there. If not, we - * are in deep goo. + * under its parent, so the context should be there, unless the + * parent is going to be handled by pciehp, in which case this + * bridge is not interesting to us either. */ mutex_lock(&acpiphp_context_lock); context = acpiphp_get_context(handle); - if (WARN_ON(!context)) { + if (!context) { mutex_unlock(&acpiphp_context_lock); put_device(&bus->dev); + pci_dev_put(bridge->pci_dev); kfree(bridge); return; } diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 98f7b9b89507..38f3c0140dfb 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -135,6 +135,7 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count) return retval; return count; } +static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id); /** * store_remove_id - remove a PCI device ID from this driver @@ -180,12 +181,14 @@ store_remove_id(struct device_driver *driver, const char *buf, size_t count) return retval; return count; } +static DRIVER_ATTR(remove_id, S_IWUSR, NULL, store_remove_id); -static struct driver_attribute pci_drv_attrs[] = { - __ATTR(new_id, S_IWUSR, NULL, store_new_id), - __ATTR(remove_id, S_IWUSR, NULL, store_remove_id), - __ATTR_NULL, +static struct attribute *pci_drv_attrs[] = { + &driver_attr_new_id.attr, + &driver_attr_remove_id.attr, + NULL, }; +ATTRIBUTE_GROUPS(pci_drv); /** * pci_match_id - See if a pci device matches a given pci_id table @@ -1317,8 +1320,8 @@ struct bus_type pci_bus_type = { .remove = pci_device_remove, .shutdown = pci_device_shutdown, .dev_attrs = pci_dev_attrs, - .bus_attrs = pci_bus_attrs, - .drv_attrs = pci_drv_attrs, + .bus_groups = pci_bus_groups, + .drv_groups = pci_drv_groups, .pm = PCI_PM_OPS_PTR, }; diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 7128cfdd64aa..d8eb880bd1fc 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -302,10 +302,20 @@ static ssize_t bus_rescan_store(struct bus_type *bus, const char *buf, } return count; } +static BUS_ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, bus_rescan_store); -struct bus_attribute pci_bus_attrs[] = { - __ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, bus_rescan_store), - __ATTR_NULL +struct attribute *pci_bus_attrs[] = { + &bus_attr_rescan.attr, + NULL, +}; + +static const struct attribute_group pci_bus_group = { + .attrs = pci_bus_attrs, +}; + +const struct attribute_group *pci_bus_groups[] = { + &pci_bus_group, + NULL, }; static ssize_t diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 8a00c063d7bc..607be58dd728 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -156,7 +156,7 @@ static inline int pci_no_d1d2(struct pci_dev *dev) extern struct device_attribute pci_dev_attrs[]; extern const struct attribute_group *pcibus_groups[]; extern struct device_type pci_dev_type; -extern struct bus_attribute pci_bus_attrs[]; +extern const struct attribute_group *pci_bus_groups[]; /** diff --git a/drivers/pcmcia/at91_cf.c b/drivers/pcmcia/at91_cf.c index b8f5acf02261..de24232c5191 100644 --- a/drivers/pcmcia/at91_cf.c +++ b/drivers/pcmcia/at91_cf.c @@ -245,7 +245,7 @@ static int at91_cf_dt_init(struct platform_device *pdev) } #endif -static int __init at91_cf_probe(struct platform_device *pdev) +static int at91_cf_probe(struct platform_device *pdev) { struct at91_cf_socket *cf; struct at91_cf_data *board = pdev->dev.platform_data; @@ -354,7 +354,7 @@ fail0a: return status; } -static int __exit at91_cf_remove(struct platform_device *pdev) +static int at91_cf_remove(struct platform_device *pdev) { struct at91_cf_socket *cf = platform_get_drvdata(pdev); @@ -404,14 +404,13 @@ static struct platform_driver at91_cf_driver = { .owner = THIS_MODULE, .of_match_table = of_match_ptr(at91_cf_dt_ids), }, - .remove = __exit_p(at91_cf_remove), + .probe = at91_cf_probe, + .remove = at91_cf_remove, .suspend = at91_cf_suspend, .resume = at91_cf_resume, }; -/*--------------------------------------------------------------------------*/ - -module_platform_driver_probe(at91_cf_driver, at91_cf_probe); +module_platform_driver(at91_cf_driver); MODULE_DESCRIPTION("AT91 Compact Flash Driver"); MODULE_AUTHOR("David Brownell"); diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 2deacbb2ffdc..757119b87146 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -992,16 +992,17 @@ static ssize_t field##_show (struct device *dev, struct device_attribute *attr, { \ struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ return p_dev->test ? sprintf(buf, format, p_dev->field) : -ENODEV; \ -} +} \ +static DEVICE_ATTR_RO(field); #define pcmcia_device_stringattr(name, field) \ static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf) \ { \ struct pcmcia_device *p_dev = to_pcmcia_dev(dev); \ return p_dev->field ? sprintf(buf, "%s\n", p_dev->field) : -ENODEV; \ -} +} \ +static DEVICE_ATTR_RO(name); -pcmcia_device_attr(func, socket, "0x%02x\n"); pcmcia_device_attr(func_id, has_func_id, "0x%02x\n"); pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n"); pcmcia_device_attr(card_id, has_card_id, "0x%04x\n"); @@ -1010,8 +1011,16 @@ pcmcia_device_stringattr(prod_id2, prod_id[1]); pcmcia_device_stringattr(prod_id3, prod_id[2]); pcmcia_device_stringattr(prod_id4, prod_id[3]); -static ssize_t pcmcia_show_resources(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t function_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct pcmcia_device *p_dev = to_pcmcia_dev(dev); + return p_dev->socket ? sprintf(buf, "0x%02x\n", p_dev->func) : -ENODEV; +} +static DEVICE_ATTR_RO(function); + +static ssize_t resources_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct pcmcia_device *p_dev = to_pcmcia_dev(dev); char *str = buf; @@ -1022,8 +1031,9 @@ static ssize_t pcmcia_show_resources(struct device *dev, return str - buf; } +static DEVICE_ATTR_RO(resources); -static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t pm_state_show(struct device *dev, struct device_attribute *attr, char *buf) { struct pcmcia_device *p_dev = to_pcmcia_dev(dev); @@ -1033,8 +1043,8 @@ static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute return sprintf(buf, "on\n"); } -static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t pm_state_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) { struct pcmcia_device *p_dev = to_pcmcia_dev(dev); int ret = 0; @@ -1049,7 +1059,7 @@ static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute return ret ? ret : count; } - +static DEVICE_ATTR_RW(pm_state); static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1072,8 +1082,9 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, p_dev->func, p_dev->device_no, hash[0], hash[1], hash[2], hash[3]); } +static DEVICE_ATTR_RO(modalias); -static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, +static ssize_t allow_func_id_match_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct pcmcia_device *p_dev = to_pcmcia_dev(dev); @@ -1088,22 +1099,24 @@ static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, return count; } - -static struct device_attribute pcmcia_dev_attrs[] = { - __ATTR(function, 0444, func_show, NULL), - __ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state), - __ATTR(resources, 0444, pcmcia_show_resources, NULL), - __ATTR_RO(func_id), - __ATTR_RO(manf_id), - __ATTR_RO(card_id), - __ATTR_RO(prod_id1), - __ATTR_RO(prod_id2), - __ATTR_RO(prod_id3), - __ATTR_RO(prod_id4), - __ATTR_RO(modalias), - __ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match), - __ATTR_NULL, +static DEVICE_ATTR_WO(allow_func_id_match); + +static struct attribute *pcmcia_dev_attrs[] = { + &dev_attr_resources.attr, + &dev_attr_pm_state.attr, + &dev_attr_function.attr, + &dev_attr_func_id.attr, + &dev_attr_manf_id.attr, + &dev_attr_card_id.attr, + &dev_attr_prod_id1.attr, + &dev_attr_prod_id2.attr, + &dev_attr_prod_id3.attr, + &dev_attr_prod_id4.attr, + &dev_attr_modalias.attr, + &dev_attr_allow_func_id_match.attr, + NULL, }; +ATTRIBUTE_GROUPS(pcmcia_dev); /* PM support, also needed for reset */ @@ -1389,7 +1402,7 @@ struct bus_type pcmcia_bus_type = { .name = "pcmcia", .uevent = pcmcia_bus_uevent, .match = pcmcia_bus_match, - .dev_attrs = pcmcia_dev_attrs, + .dev_groups = pcmcia_dev_groups, .probe = pcmcia_device_probe, .remove = pcmcia_device_remove, .suspend = pcmcia_dev_suspend, diff --git a/drivers/pcmcia/pd6729.c b/drivers/pcmcia/pd6729.c index a4c16ee5c718..622dd6fe7347 100644 --- a/drivers/pcmcia/pd6729.c +++ b/drivers/pcmcia/pd6729.c @@ -777,15 +777,4 @@ static struct pci_driver pd6729_pci_driver = { .remove = pd6729_pci_remove, }; -static int pd6729_module_init(void) -{ - return pci_register_driver(&pd6729_pci_driver); -} - -static void pd6729_module_exit(void) -{ - pci_unregister_driver(&pd6729_pci_driver); -} - -module_init(pd6729_module_init); -module_exit(pd6729_module_exit); +module_pci_driver(pd6729_pci_driver); diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index 6b4ff099fb13..dc18a3a5e010 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -1439,20 +1439,6 @@ static struct pci_driver yenta_cardbus_driver = { .driver.pm = YENTA_PM_OPS, }; - -static int __init yenta_socket_init(void) -{ - return pci_register_driver(¥ta_cardbus_driver); -} - - -static void __exit yenta_socket_exit(void) -{ - pci_unregister_driver(¥ta_cardbus_driver); -} - - -module_init(yenta_socket_init); -module_exit(yenta_socket_exit); +module_pci_driver(yenta_cardbus_driver); MODULE_LICENSE("GPL"); diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig new file mode 100644 index 000000000000..a344f3d52361 --- /dev/null +++ b/drivers/phy/Kconfig @@ -0,0 +1,54 @@ +# +# PHY +# + +menu "PHY Subsystem" + +config GENERIC_PHY + tristate "PHY Core" + help + Generic PHY support. + + This framework is designed to provide a generic interface for PHY + devices present in the kernel. This layer will have the generic + API by which phy drivers can create PHY using the phy framework and + phy users can obtain reference to the PHY. All the users of this + framework should select this config. + +config PHY_EXYNOS_MIPI_VIDEO + tristate "S5P/EXYNOS SoC series MIPI CSI-2/DSI PHY driver" + help + Support for MIPI CSI-2 and MIPI DSI DPHY found on Samsung S5P + and EXYNOS SoCs. + +config OMAP_USB2 + tristate "OMAP USB2 PHY Driver" + depends on ARCH_OMAP2PLUS + select GENERIC_PHY + select USB_PHY + select OMAP_CONTROL_USB + help + Enable this to support the transceiver that is part of SOC. This + driver takes care of all the PHY functionality apart from comparator. + The USB OTG controller communicates with the comparator using this + driver. + +config TWL4030_USB + tristate "TWL4030 USB Transceiver Driver" + depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS + select GENERIC_PHY + select USB_PHY + help + Enable this to support the USB OTG transceiver on TWL4030 + family chips (including the TWL5030 and TPS659x0 devices). + This transceiver supports high and full speed devices plus, + in host mode, low speed. + +config PHY_EXYNOS_DP_VIDEO + tristate "EXYNOS SoC series Display Port PHY driver" + depends on OF + select GENERIC_PHY + help + Support for Display Port PHY found on Samsung EXYNOS SoCs. + +endmenu diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile new file mode 100644 index 000000000000..d0caae9cfb83 --- /dev/null +++ b/drivers/phy/Makefile @@ -0,0 +1,9 @@ +# +# Makefile for the phy drivers. +# + +obj-$(CONFIG_GENERIC_PHY) += phy-core.o +obj-$(CONFIG_PHY_EXYNOS_DP_VIDEO) += phy-exynos-dp-video.o +obj-$(CONFIG_PHY_EXYNOS_MIPI_VIDEO) += phy-exynos-mipi-video.o +obj-$(CONFIG_OMAP_USB2) += phy-omap-usb2.o +obj-$(CONFIG_TWL4030_USB) += phy-twl4030-usb.o diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c new file mode 100644 index 000000000000..03cf8fb81554 --- /dev/null +++ b/drivers/phy/phy-core.c @@ -0,0 +1,698 @@ +/* + * phy-core.c -- Generic Phy framework. + * + * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com + * + * Author: Kishon Vijay Abraham I <kishon@ti.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/kernel.h> +#include <linux/export.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/device.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/phy/phy.h> +#include <linux/idr.h> +#include <linux/pm_runtime.h> + +static struct class *phy_class; +static DEFINE_MUTEX(phy_provider_mutex); +static LIST_HEAD(phy_provider_list); +static DEFINE_IDA(phy_ida); + +static void devm_phy_release(struct device *dev, void *res) +{ + struct phy *phy = *(struct phy **)res; + + phy_put(phy); +} + +static void devm_phy_provider_release(struct device *dev, void *res) +{ + struct phy_provider *phy_provider = *(struct phy_provider **)res; + + of_phy_provider_unregister(phy_provider); +} + +static void devm_phy_consume(struct device *dev, void *res) +{ + struct phy *phy = *(struct phy **)res; + + phy_destroy(phy); +} + +static int devm_phy_match(struct device *dev, void *res, void *match_data) +{ + return res == match_data; +} + +static struct phy *phy_lookup(struct device *device, const char *port) +{ + unsigned int count; + struct phy *phy; + struct device *dev; + struct phy_consumer *consumers; + struct class_dev_iter iter; + + class_dev_iter_init(&iter, phy_class, NULL, NULL); + while ((dev = class_dev_iter_next(&iter))) { + phy = to_phy(dev); + count = phy->init_data->num_consumers; + consumers = phy->init_data->consumers; + while (count--) { + if (!strcmp(consumers->dev_name, dev_name(device)) && + !strcmp(consumers->port, port)) { + class_dev_iter_exit(&iter); + return phy; + } + consumers++; + } + } + + class_dev_iter_exit(&iter); + return ERR_PTR(-ENODEV); +} + +static struct phy_provider *of_phy_provider_lookup(struct device_node *node) +{ + struct phy_provider *phy_provider; + + list_for_each_entry(phy_provider, &phy_provider_list, list) { + if (phy_provider->dev->of_node == node) + return phy_provider; + } + + return ERR_PTR(-EPROBE_DEFER); +} + +int phy_pm_runtime_get(struct phy *phy) +{ + if (!pm_runtime_enabled(&phy->dev)) + return -ENOTSUPP; + + return pm_runtime_get(&phy->dev); +} +EXPORT_SYMBOL_GPL(phy_pm_runtime_get); + +int phy_pm_runtime_get_sync(struct phy *phy) +{ + if (!pm_runtime_enabled(&phy->dev)) + return -ENOTSUPP; + + return pm_runtime_get_sync(&phy->dev); +} +EXPORT_SYMBOL_GPL(phy_pm_runtime_get_sync); + +int phy_pm_runtime_put(struct phy *phy) +{ + if (!pm_runtime_enabled(&phy->dev)) + return -ENOTSUPP; + + return pm_runtime_put(&phy->dev); +} +EXPORT_SYMBOL_GPL(phy_pm_runtime_put); + +int phy_pm_runtime_put_sync(struct phy *phy) +{ + if (!pm_runtime_enabled(&phy->dev)) + return -ENOTSUPP; + + return pm_runtime_put_sync(&phy->dev); +} +EXPORT_SYMBOL_GPL(phy_pm_runtime_put_sync); + +void phy_pm_runtime_allow(struct phy *phy) +{ + if (!pm_runtime_enabled(&phy->dev)) + return; + + pm_runtime_allow(&phy->dev); +} +EXPORT_SYMBOL_GPL(phy_pm_runtime_allow); + +void phy_pm_runtime_forbid(struct phy *phy) +{ + if (!pm_runtime_enabled(&phy->dev)) + return; + + pm_runtime_forbid(&phy->dev); +} +EXPORT_SYMBOL_GPL(phy_pm_runtime_forbid); + +int phy_init(struct phy *phy) +{ + int ret; + + ret = phy_pm_runtime_get_sync(phy); + if (ret < 0 && ret != -ENOTSUPP) + return ret; + + mutex_lock(&phy->mutex); + if (phy->init_count++ == 0 && phy->ops->init) { + ret = phy->ops->init(phy); + if (ret < 0) { + dev_err(&phy->dev, "phy init failed --> %d\n", ret); + goto out; + } + } + +out: + mutex_unlock(&phy->mutex); + phy_pm_runtime_put(phy); + return ret; +} +EXPORT_SYMBOL_GPL(phy_init); + +int phy_exit(struct phy *phy) +{ + int ret; + + ret = phy_pm_runtime_get_sync(phy); + if (ret < 0 && ret != -ENOTSUPP) + return ret; + + mutex_lock(&phy->mutex); + if (--phy->init_count == 0 && phy->ops->exit) { + ret = phy->ops->exit(phy); + if (ret < 0) { + dev_err(&phy->dev, "phy exit failed --> %d\n", ret); + goto out; + } + } + +out: + mutex_unlock(&phy->mutex); + phy_pm_runtime_put(phy); + return ret; +} +EXPORT_SYMBOL_GPL(phy_exit); + +int phy_power_on(struct phy *phy) +{ + int ret = -ENOTSUPP; + + ret = phy_pm_runtime_get_sync(phy); + if (ret < 0 && ret != -ENOTSUPP) + return ret; + + mutex_lock(&phy->mutex); + if (phy->power_count++ == 0 && phy->ops->power_on) { + ret = phy->ops->power_on(phy); + if (ret < 0) { + dev_err(&phy->dev, "phy poweron failed --> %d\n", ret); + goto out; + } + } + +out: + mutex_unlock(&phy->mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(phy_power_on); + +int phy_power_off(struct phy *phy) +{ + int ret = -ENOTSUPP; + + mutex_lock(&phy->mutex); + if (--phy->power_count == 0 && phy->ops->power_off) { + ret = phy->ops->power_off(phy); + if (ret < 0) { + dev_err(&phy->dev, "phy poweroff failed --> %d\n", ret); + goto out; + } + } + +out: + mutex_unlock(&phy->mutex); + phy_pm_runtime_put(phy); + + return ret; +} +EXPORT_SYMBOL_GPL(phy_power_off); + +/** + * of_phy_get() - lookup and obtain a reference to a phy by phandle + * @dev: device that requests this phy + * @index: the index of the phy + * + * Returns the phy associated with the given phandle value, + * after getting a refcount to it or -ENODEV if there is no such phy or + * -EPROBE_DEFER if there is a phandle to the phy, but the device is + * not yet loaded. This function uses of_xlate call back function provided + * while registering the phy_provider to find the phy instance. + */ +static struct phy *of_phy_get(struct device *dev, int index) +{ + int ret; + struct phy_provider *phy_provider; + struct phy *phy = NULL; + struct of_phandle_args args; + + ret = of_parse_phandle_with_args(dev->of_node, "phys", "#phy-cells", + index, &args); + if (ret) { + dev_dbg(dev, "failed to get phy in %s node\n", + dev->of_node->full_name); + return ERR_PTR(-ENODEV); + } + + mutex_lock(&phy_provider_mutex); + phy_provider = of_phy_provider_lookup(args.np); + if (IS_ERR(phy_provider) || !try_module_get(phy_provider->owner)) { + phy = ERR_PTR(-EPROBE_DEFER); + goto err0; + } + + phy = phy_provider->of_xlate(phy_provider->dev, &args); + module_put(phy_provider->owner); + +err0: + mutex_unlock(&phy_provider_mutex); + of_node_put(args.np); + + return phy; +} + +/** + * phy_put() - release the PHY + * @phy: the phy returned by phy_get() + * + * Releases a refcount the caller received from phy_get(). + */ +void phy_put(struct phy *phy) +{ + if (IS_ERR(phy)) + return; + + module_put(phy->ops->owner); + put_device(&phy->dev); +} +EXPORT_SYMBOL_GPL(phy_put); + +/** + * devm_phy_put() - release the PHY + * @dev: device that wants to release this phy + * @phy: the phy returned by devm_phy_get() + * + * destroys the devres associated with this phy and invokes phy_put + * to release the phy. + */ +void devm_phy_put(struct device *dev, struct phy *phy) +{ + int r; + + r = devres_destroy(dev, devm_phy_release, devm_phy_match, phy); + dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n"); +} +EXPORT_SYMBOL_GPL(devm_phy_put); + +/** + * of_phy_simple_xlate() - returns the phy instance from phy provider + * @dev: the PHY provider device + * @args: of_phandle_args (not used here) + * + * Intended to be used by phy provider for the common case where #phy-cells is + * 0. For other cases where #phy-cells is greater than '0', the phy provider + * should provide a custom of_xlate function that reads the *args* and returns + * the appropriate phy. + */ +struct phy *of_phy_simple_xlate(struct device *dev, struct of_phandle_args + *args) +{ + struct phy *phy; + struct class_dev_iter iter; + struct device_node *node = dev->of_node; + + class_dev_iter_init(&iter, phy_class, NULL, NULL); + while ((dev = class_dev_iter_next(&iter))) { + phy = to_phy(dev); + if (node != phy->dev.of_node) + continue; + + class_dev_iter_exit(&iter); + return phy; + } + + class_dev_iter_exit(&iter); + return ERR_PTR(-ENODEV); +} +EXPORT_SYMBOL_GPL(of_phy_simple_xlate); + +/** + * phy_get() - lookup and obtain a reference to a phy. + * @dev: device that requests this phy + * @string: the phy name as given in the dt data or the name of the controller + * port for non-dt case + * + * Returns the phy driver, after getting a refcount to it; or + * -ENODEV if there is no such phy. The caller is responsible for + * calling phy_put() to release that count. + */ +struct phy *phy_get(struct device *dev, const char *string) +{ + int index = 0; + struct phy *phy = NULL; + + if (string == NULL) { + dev_WARN(dev, "missing string\n"); + return ERR_PTR(-EINVAL); + } + + if (dev->of_node) { + index = of_property_match_string(dev->of_node, "phy-names", + string); + phy = of_phy_get(dev, index); + if (IS_ERR(phy)) { + dev_err(dev, "unable to find phy\n"); + return phy; + } + } else { + phy = phy_lookup(dev, string); + if (IS_ERR(phy)) { + dev_err(dev, "unable to find phy\n"); + return phy; + } + } + + if (!try_module_get(phy->ops->owner)) + return ERR_PTR(-EPROBE_DEFER); + + get_device(&phy->dev); + + return phy; +} +EXPORT_SYMBOL_GPL(phy_get); + +/** + * devm_phy_get() - lookup and obtain a reference to a phy. + * @dev: device that requests this phy + * @string: the phy name as given in the dt data or phy device name + * for non-dt case + * + * Gets the phy using phy_get(), and associates a device with it using + * devres. On driver detach, release function is invoked on the devres data, + * then, devres data is freed. + */ +struct phy *devm_phy_get(struct device *dev, const char *string) +{ + struct phy **ptr, *phy; + + ptr = devres_alloc(devm_phy_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return ERR_PTR(-ENOMEM); + + phy = phy_get(dev, string); + if (!IS_ERR(phy)) { + *ptr = phy; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return phy; +} +EXPORT_SYMBOL_GPL(devm_phy_get); + +/** + * phy_create() - create a new phy + * @dev: device that is creating the new phy + * @ops: function pointers for performing phy operations + * @init_data: contains the list of PHY consumers or NULL + * + * Called to create a phy using phy framework. + */ +struct phy *phy_create(struct device *dev, const struct phy_ops *ops, + struct phy_init_data *init_data) +{ + int ret; + int id; + struct phy *phy; + + if (!dev) { + dev_WARN(dev, "no device provided for PHY\n"); + ret = -EINVAL; + goto err0; + } + + phy = kzalloc(sizeof(*phy), GFP_KERNEL); + if (!phy) { + ret = -ENOMEM; + goto err0; + } + + id = ida_simple_get(&phy_ida, 0, 0, GFP_KERNEL); + if (id < 0) { + dev_err(dev, "unable to get id\n"); + ret = id; + goto err0; + } + + device_initialize(&phy->dev); + mutex_init(&phy->mutex); + + phy->dev.class = phy_class; + phy->dev.parent = dev; + phy->dev.of_node = dev->of_node; + phy->id = id; + phy->ops = ops; + phy->init_data = init_data; + + ret = dev_set_name(&phy->dev, "phy-%s.%d", dev_name(dev), id); + if (ret) + goto err1; + + ret = device_add(&phy->dev); + if (ret) + goto err1; + + if (pm_runtime_enabled(dev)) { + pm_runtime_enable(&phy->dev); + pm_runtime_no_callbacks(&phy->dev); + } + + return phy; + +err1: + ida_remove(&phy_ida, phy->id); + put_device(&phy->dev); + kfree(phy); + +err0: + return ERR_PTR(ret); +} +EXPORT_SYMBOL_GPL(phy_create); + +/** + * devm_phy_create() - create a new phy + * @dev: device that is creating the new phy + * @ops: function pointers for performing phy operations + * @init_data: contains the list of PHY consumers or NULL + * + * Creates a new PHY device adding it to the PHY class. + * While at that, it also associates the device with the phy using devres. + * On driver detach, release function is invoked on the devres data, + * then, devres data is freed. + */ +struct phy *devm_phy_create(struct device *dev, const struct phy_ops *ops, + struct phy_init_data *init_data) +{ + struct phy **ptr, *phy; + + ptr = devres_alloc(devm_phy_consume, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return ERR_PTR(-ENOMEM); + + phy = phy_create(dev, ops, init_data); + if (!IS_ERR(phy)) { + *ptr = phy; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return phy; +} +EXPORT_SYMBOL_GPL(devm_phy_create); + +/** + * phy_destroy() - destroy the phy + * @phy: the phy to be destroyed + * + * Called to destroy the phy. + */ +void phy_destroy(struct phy *phy) +{ + pm_runtime_disable(&phy->dev); + device_unregister(&phy->dev); +} +EXPORT_SYMBOL_GPL(phy_destroy); + +/** + * devm_phy_destroy() - destroy the PHY + * @dev: device that wants to release this phy + * @phy: the phy returned by devm_phy_get() + * + * destroys the devres associated with this phy and invokes phy_destroy + * to destroy the phy. + */ +void devm_phy_destroy(struct device *dev, struct phy *phy) +{ + int r; + + r = devres_destroy(dev, devm_phy_consume, devm_phy_match, phy); + dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n"); +} +EXPORT_SYMBOL_GPL(devm_phy_destroy); + +/** + * __of_phy_provider_register() - create/register phy provider with the framework + * @dev: struct device of the phy provider + * @owner: the module owner containing of_xlate + * @of_xlate: function pointer to obtain phy instance from phy provider + * + * Creates struct phy_provider from dev and of_xlate function pointer. + * This is used in the case of dt boot for finding the phy instance from + * phy provider. + */ +struct phy_provider *__of_phy_provider_register(struct device *dev, + struct module *owner, struct phy * (*of_xlate)(struct device *dev, + struct of_phandle_args *args)) +{ + struct phy_provider *phy_provider; + + phy_provider = kzalloc(sizeof(*phy_provider), GFP_KERNEL); + if (!phy_provider) + return ERR_PTR(-ENOMEM); + + phy_provider->dev = dev; + phy_provider->owner = owner; + phy_provider->of_xlate = of_xlate; + + mutex_lock(&phy_provider_mutex); + list_add_tail(&phy_provider->list, &phy_provider_list); + mutex_unlock(&phy_provider_mutex); + + return phy_provider; +} +EXPORT_SYMBOL_GPL(__of_phy_provider_register); + +/** + * __devm_of_phy_provider_register() - create/register phy provider with the + * framework + * @dev: struct device of the phy provider + * @owner: the module owner containing of_xlate + * @of_xlate: function pointer to obtain phy instance from phy provider + * + * Creates struct phy_provider from dev and of_xlate function pointer. + * This is used in the case of dt boot for finding the phy instance from + * phy provider. While at that, it also associates the device with the + * phy provider using devres. On driver detach, release function is invoked + * on the devres data, then, devres data is freed. + */ +struct phy_provider *__devm_of_phy_provider_register(struct device *dev, + struct module *owner, struct phy * (*of_xlate)(struct device *dev, + struct of_phandle_args *args)) +{ + struct phy_provider **ptr, *phy_provider; + + ptr = devres_alloc(devm_phy_provider_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return ERR_PTR(-ENOMEM); + + phy_provider = __of_phy_provider_register(dev, owner, of_xlate); + if (!IS_ERR(phy_provider)) { + *ptr = phy_provider; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return phy_provider; +} +EXPORT_SYMBOL_GPL(__devm_of_phy_provider_register); + +/** + * of_phy_provider_unregister() - unregister phy provider from the framework + * @phy_provider: phy provider returned by of_phy_provider_register() + * + * Removes the phy_provider created using of_phy_provider_register(). + */ +void of_phy_provider_unregister(struct phy_provider *phy_provider) +{ + if (IS_ERR(phy_provider)) + return; + + mutex_lock(&phy_provider_mutex); + list_del(&phy_provider->list); + kfree(phy_provider); + mutex_unlock(&phy_provider_mutex); +} +EXPORT_SYMBOL_GPL(of_phy_provider_unregister); + +/** + * devm_of_phy_provider_unregister() - remove phy provider from the framework + * @dev: struct device of the phy provider + * + * destroys the devres associated with this phy provider and invokes + * of_phy_provider_unregister to unregister the phy provider. + */ +void devm_of_phy_provider_unregister(struct device *dev, + struct phy_provider *phy_provider) { + int r; + + r = devres_destroy(dev, devm_phy_provider_release, devm_phy_match, + phy_provider); + dev_WARN_ONCE(dev, r, "couldn't find PHY provider device resource\n"); +} +EXPORT_SYMBOL_GPL(devm_of_phy_provider_unregister); + +/** + * phy_release() - release the phy + * @dev: the dev member within phy + * + * When the last reference to the device is removed, it is called + * from the embedded kobject as release method. + */ +static void phy_release(struct device *dev) +{ + struct phy *phy; + + phy = to_phy(dev); + dev_vdbg(dev, "releasing '%s'\n", dev_name(dev)); + ida_remove(&phy_ida, phy->id); + kfree(phy); +} + +static int __init phy_core_init(void) +{ + phy_class = class_create(THIS_MODULE, "phy"); + if (IS_ERR(phy_class)) { + pr_err("failed to create phy class --> %ld\n", + PTR_ERR(phy_class)); + return PTR_ERR(phy_class); + } + + phy_class->dev_release = phy_release; + + return 0; +} +module_init(phy_core_init); + +static void __exit phy_core_exit(void) +{ + class_destroy(phy_class); +} +module_exit(phy_core_exit); + +MODULE_DESCRIPTION("Generic PHY Framework"); +MODULE_AUTHOR("Kishon Vijay Abraham I <kishon@ti.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/phy-exynos-dp-video.c b/drivers/phy/phy-exynos-dp-video.c new file mode 100644 index 000000000000..1dbe6ce7b2ce --- /dev/null +++ b/drivers/phy/phy-exynos-dp-video.c @@ -0,0 +1,111 @@ +/* + * Samsung EXYNOS SoC series Display Port PHY driver + * + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Author: Jingoo Han <jg1.han@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/phy/phy.h> +#include <linux/platform_device.h> + +/* DPTX_PHY_CONTROL register */ +#define EXYNOS_DPTX_PHY_ENABLE (1 << 0) + +struct exynos_dp_video_phy { + void __iomem *regs; +}; + +static int __set_phy_state(struct exynos_dp_video_phy *state, unsigned int on) +{ + u32 reg; + + reg = readl(state->regs); + if (on) + reg |= EXYNOS_DPTX_PHY_ENABLE; + else + reg &= ~EXYNOS_DPTX_PHY_ENABLE; + writel(reg, state->regs); + + return 0; +} + +static int exynos_dp_video_phy_power_on(struct phy *phy) +{ + struct exynos_dp_video_phy *state = phy_get_drvdata(phy); + + return __set_phy_state(state, 1); +} + +static int exynos_dp_video_phy_power_off(struct phy *phy) +{ + struct exynos_dp_video_phy *state = phy_get_drvdata(phy); + + return __set_phy_state(state, 0); +} + +static struct phy_ops exynos_dp_video_phy_ops = { + .power_on = exynos_dp_video_phy_power_on, + .power_off = exynos_dp_video_phy_power_off, + .owner = THIS_MODULE, +}; + +static int exynos_dp_video_phy_probe(struct platform_device *pdev) +{ + struct exynos_dp_video_phy *state; + struct device *dev = &pdev->dev; + struct resource *res; + struct phy_provider *phy_provider; + struct phy *phy; + + state = devm_kzalloc(dev, sizeof(*state), GFP_KERNEL); + if (!state) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + state->regs = devm_ioremap_resource(dev, res); + if (IS_ERR(state->regs)) + return PTR_ERR(state->regs); + + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + if (IS_ERR(phy_provider)) + return PTR_ERR(phy_provider); + + phy = devm_phy_create(dev, &exynos_dp_video_phy_ops, NULL); + if (IS_ERR(phy)) { + dev_err(dev, "failed to create Display Port PHY\n"); + return PTR_ERR(phy); + } + phy_set_drvdata(phy, state); + + return 0; +} + +static const struct of_device_id exynos_dp_video_phy_of_match[] = { + { .compatible = "samsung,exynos5250-dp-video-phy" }, + { }, +}; +MODULE_DEVICE_TABLE(of, exynos_dp_video_phy_of_match); + +static struct platform_driver exynos_dp_video_phy_driver = { + .probe = exynos_dp_video_phy_probe, + .driver = { + .name = "exynos-dp-video-phy", + .owner = THIS_MODULE, + .of_match_table = exynos_dp_video_phy_of_match, + } +}; +module_platform_driver(exynos_dp_video_phy_driver); + +MODULE_AUTHOR("Jingoo Han <jg1.han@samsung.com>"); +MODULE_DESCRIPTION("Samsung EXYNOS SoC DP PHY driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/phy-exynos-mipi-video.c b/drivers/phy/phy-exynos-mipi-video.c new file mode 100644 index 000000000000..0c5efab11af1 --- /dev/null +++ b/drivers/phy/phy-exynos-mipi-video.c @@ -0,0 +1,176 @@ +/* + * Samsung S5P/EXYNOS SoC series MIPI CSIS/DSIM DPHY driver + * + * Copyright (C) 2013 Samsung Electronics Co., Ltd. + * Author: Sylwester Nawrocki <s.nawrocki@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/phy/phy.h> +#include <linux/platform_device.h> +#include <linux/spinlock.h> + +/* MIPI_PHYn_CONTROL register offset: n = 0..1 */ +#define EXYNOS_MIPI_PHY_CONTROL(n) ((n) * 4) +#define EXYNOS_MIPI_PHY_ENABLE (1 << 0) +#define EXYNOS_MIPI_PHY_SRESETN (1 << 1) +#define EXYNOS_MIPI_PHY_MRESETN (1 << 2) +#define EXYNOS_MIPI_PHY_RESET_MASK (3 << 1) + +enum exynos_mipi_phy_id { + EXYNOS_MIPI_PHY_ID_CSIS0, + EXYNOS_MIPI_PHY_ID_DSIM0, + EXYNOS_MIPI_PHY_ID_CSIS1, + EXYNOS_MIPI_PHY_ID_DSIM1, + EXYNOS_MIPI_PHYS_NUM +}; + +#define is_mipi_dsim_phy_id(id) \ + ((id) == EXYNOS_MIPI_PHY_ID_DSIM0 || (id) == EXYNOS_MIPI_PHY_ID_DSIM1) + +struct exynos_mipi_video_phy { + spinlock_t slock; + struct video_phy_desc { + struct phy *phy; + unsigned int index; + } phys[EXYNOS_MIPI_PHYS_NUM]; + void __iomem *regs; +}; + +static int __set_phy_state(struct exynos_mipi_video_phy *state, + enum exynos_mipi_phy_id id, unsigned int on) +{ + void __iomem *addr; + u32 reg, reset; + + addr = state->regs + EXYNOS_MIPI_PHY_CONTROL(id / 2); + + if (is_mipi_dsim_phy_id(id)) + reset = EXYNOS_MIPI_PHY_MRESETN; + else + reset = EXYNOS_MIPI_PHY_SRESETN; + + spin_lock(&state->slock); + reg = readl(addr); + if (on) + reg |= reset; + else + reg &= ~reset; + writel(reg, addr); + + /* Clear ENABLE bit only if MRESETN, SRESETN bits are not set. */ + if (on) + reg |= EXYNOS_MIPI_PHY_ENABLE; + else if (!(reg & EXYNOS_MIPI_PHY_RESET_MASK)) + reg &= ~EXYNOS_MIPI_PHY_ENABLE; + + writel(reg, addr); + spin_unlock(&state->slock); + return 0; +} + +#define to_mipi_video_phy(desc) \ + container_of((desc), struct exynos_mipi_video_phy, phys[(desc)->index]); + +static int exynos_mipi_video_phy_power_on(struct phy *phy) +{ + struct video_phy_desc *phy_desc = phy_get_drvdata(phy); + struct exynos_mipi_video_phy *state = to_mipi_video_phy(phy_desc); + + return __set_phy_state(state, phy_desc->index, 1); +} + +static int exynos_mipi_video_phy_power_off(struct phy *phy) +{ + struct video_phy_desc *phy_desc = phy_get_drvdata(phy); + struct exynos_mipi_video_phy *state = to_mipi_video_phy(phy_desc); + + return __set_phy_state(state, phy_desc->index, 0); +} + +static struct phy *exynos_mipi_video_phy_xlate(struct device *dev, + struct of_phandle_args *args) +{ + struct exynos_mipi_video_phy *state = dev_get_drvdata(dev); + + if (WARN_ON(args->args[0] > EXYNOS_MIPI_PHYS_NUM)) + return ERR_PTR(-ENODEV); + + return state->phys[args->args[0]].phy; +} + +static struct phy_ops exynos_mipi_video_phy_ops = { + .power_on = exynos_mipi_video_phy_power_on, + .power_off = exynos_mipi_video_phy_power_off, + .owner = THIS_MODULE, +}; + +static int exynos_mipi_video_phy_probe(struct platform_device *pdev) +{ + struct exynos_mipi_video_phy *state; + struct device *dev = &pdev->dev; + struct resource *res; + struct phy_provider *phy_provider; + unsigned int i; + + state = devm_kzalloc(dev, sizeof(*state), GFP_KERNEL); + if (!state) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + state->regs = devm_ioremap_resource(dev, res); + if (IS_ERR(state->regs)) + return PTR_ERR(state->regs); + + dev_set_drvdata(dev, state); + spin_lock_init(&state->slock); + + phy_provider = devm_of_phy_provider_register(dev, + exynos_mipi_video_phy_xlate); + if (IS_ERR(phy_provider)) + return PTR_ERR(phy_provider); + + for (i = 0; i < EXYNOS_MIPI_PHYS_NUM; i++) { + struct phy *phy = devm_phy_create(dev, + &exynos_mipi_video_phy_ops, NULL); + if (IS_ERR(phy)) { + dev_err(dev, "failed to create PHY %d\n", i); + return PTR_ERR(phy); + } + + state->phys[i].phy = phy; + state->phys[i].index = i; + phy_set_drvdata(phy, &state->phys[i]); + } + + return 0; +} + +static const struct of_device_id exynos_mipi_video_phy_of_match[] = { + { .compatible = "samsung,s5pv210-mipi-video-phy" }, + { }, +}; +MODULE_DEVICE_TABLE(of, exynos_mipi_video_phy_of_match); + +static struct platform_driver exynos_mipi_video_phy_driver = { + .probe = exynos_mipi_video_phy_probe, + .driver = { + .of_match_table = exynos_mipi_video_phy_of_match, + .name = "exynos-mipi-video-phy", + .owner = THIS_MODULE, + } +}; +module_platform_driver(exynos_mipi_video_phy_driver); + +MODULE_DESCRIPTION("Samsung S5P/EXYNOS SoC MIPI CSI-2/DSI PHY driver"); +MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c index d266861d24f7..bfc5c337f99a 100644 --- a/drivers/usb/phy/phy-omap-usb2.c +++ b/drivers/phy/phy-omap-usb2.c @@ -28,6 +28,8 @@ #include <linux/pm_runtime.h> #include <linux/delay.h> #include <linux/usb/omap_control_usb.h> +#include <linux/phy/phy.h> +#include <linux/of_platform.h> /** * omap_usb2_set_comparator - links the comparator present in the sytem with @@ -118,10 +120,42 @@ static int omap_usb2_suspend(struct usb_phy *x, int suspend) return 0; } +static int omap_usb_power_off(struct phy *x) +{ + struct omap_usb *phy = phy_get_drvdata(x); + + omap_control_usb_phy_power(phy->control_dev, 0); + + return 0; +} + +static int omap_usb_power_on(struct phy *x) +{ + struct omap_usb *phy = phy_get_drvdata(x); + + omap_control_usb_phy_power(phy->control_dev, 1); + + return 0; +} + +static struct phy_ops ops = { + .power_on = omap_usb_power_on, + .power_off = omap_usb_power_off, + .owner = THIS_MODULE, +}; + static int omap_usb2_probe(struct platform_device *pdev) { - struct omap_usb *phy; - struct usb_otg *otg; + struct omap_usb *phy; + struct phy *generic_phy; + struct phy_provider *phy_provider; + struct usb_otg *otg; + struct device_node *node = pdev->dev.of_node; + struct device_node *control_node; + struct platform_device *control_pdev; + + if (!node) + return -EINVAL; phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); if (!phy) { @@ -143,12 +177,25 @@ static int omap_usb2_probe(struct platform_device *pdev) phy->phy.otg = otg; phy->phy.type = USB_PHY_TYPE_USB2; - phy->control_dev = omap_get_control_dev(); - if (IS_ERR(phy->control_dev)) { - dev_dbg(&pdev->dev, "Failed to get control device\n"); - return -ENODEV; + phy_provider = devm_of_phy_provider_register(phy->dev, + of_phy_simple_xlate); + if (IS_ERR(phy_provider)) + return PTR_ERR(phy_provider); + + control_node = of_parse_phandle(node, "ctrl-module", 0); + if (!control_node) { + dev_err(&pdev->dev, "Failed to get control device phandle\n"); + return -EINVAL; + } + + control_pdev = of_find_device_by_node(control_node); + if (!control_pdev) { + dev_err(&pdev->dev, "Failed to get control device\n"); + return -EINVAL; } + phy->control_dev = &control_pdev->dev; + phy->is_suspended = 1; omap_control_usb_phy_power(phy->control_dev, 0); @@ -158,6 +205,15 @@ static int omap_usb2_probe(struct platform_device *pdev) otg->start_srp = omap_usb_start_srp; otg->phy = &phy->phy; + platform_set_drvdata(pdev, phy); + pm_runtime_enable(phy->dev); + + generic_phy = devm_phy_create(phy->dev, &ops, NULL); + if (IS_ERR(generic_phy)) + return PTR_ERR(generic_phy); + + phy_set_drvdata(generic_phy, phy); + phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k"); if (IS_ERR(phy->wkupclk)) { dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n"); @@ -173,10 +229,6 @@ static int omap_usb2_probe(struct platform_device *pdev) usb_add_phy_dev(&phy->phy); - platform_set_drvdata(pdev, phy); - - pm_runtime_enable(phy->dev); - return 0; } diff --git a/drivers/usb/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c index 90730c8762b8..daf65e68aaab 100644 --- a/drivers/usb/phy/phy-twl4030-usb.c +++ b/drivers/phy/phy-twl4030-usb.c @@ -33,6 +33,7 @@ #include <linux/io.h> #include <linux/delay.h> #include <linux/usb/otg.h> +#include <linux/phy/phy.h> #include <linux/usb/musb-omap.h> #include <linux/usb/ulpi.h> #include <linux/i2c/twl.h> @@ -421,17 +422,20 @@ static void twl4030_phy_power(struct twl4030_usb *twl, int on) } } -static void twl4030_phy_suspend(struct twl4030_usb *twl, int controller_off) +static int twl4030_phy_power_off(struct phy *phy) { + struct twl4030_usb *twl = phy_get_drvdata(phy); + if (twl->asleep) - return; + return 0; twl4030_phy_power(twl, 0); twl->asleep = 1; dev_dbg(twl->dev, "%s\n", __func__); + return 0; } -static void __twl4030_phy_resume(struct twl4030_usb *twl) +static void __twl4030_phy_power_on(struct twl4030_usb *twl) { twl4030_phy_power(twl, 1); twl4030_i2c_access(twl, 1); @@ -440,11 +444,13 @@ static void __twl4030_phy_resume(struct twl4030_usb *twl) twl4030_i2c_access(twl, 0); } -static void twl4030_phy_resume(struct twl4030_usb *twl) +static int twl4030_phy_power_on(struct phy *phy) { + struct twl4030_usb *twl = phy_get_drvdata(phy); + if (!twl->asleep) - return; - __twl4030_phy_resume(twl); + return 0; + __twl4030_phy_power_on(twl); twl->asleep = 0; dev_dbg(twl->dev, "%s\n", __func__); @@ -457,6 +463,7 @@ static void twl4030_phy_resume(struct twl4030_usb *twl) cancel_delayed_work(&twl->id_workaround_work); schedule_delayed_work(&twl->id_workaround_work, HZ); } + return 0; } static int twl4030_usb_ldo_init(struct twl4030_usb *twl) @@ -587,9 +594,9 @@ static void twl4030_id_workaround_work(struct work_struct *work) } } -static int twl4030_usb_phy_init(struct usb_phy *phy) +static int twl4030_phy_init(struct phy *phy) { - struct twl4030_usb *twl = phy_to_twl(phy); + struct twl4030_usb *twl = phy_get_drvdata(phy); enum omap_musb_vbus_id_status status; /* @@ -602,25 +609,15 @@ static int twl4030_usb_phy_init(struct usb_phy *phy) status = twl4030_usb_linkstat(twl); twl->linkstat = status; - if (status == OMAP_MUSB_ID_GROUND || status == OMAP_MUSB_VBUS_VALID) + if (status == OMAP_MUSB_ID_GROUND || status == OMAP_MUSB_VBUS_VALID) { omap_musb_mailbox(twl->linkstat); + twl4030_phy_power_on(phy); + } sysfs_notify(&twl->dev->kobj, NULL, "vbus"); return 0; } -static int twl4030_set_suspend(struct usb_phy *x, int suspend) -{ - struct twl4030_usb *twl = phy_to_twl(x); - - if (suspend) - twl4030_phy_suspend(twl, 1); - else - twl4030_phy_resume(twl); - - return 0; -} - static int twl4030_set_peripheral(struct usb_otg *otg, struct usb_gadget *gadget) { @@ -646,13 +643,23 @@ static int twl4030_set_host(struct usb_otg *otg, struct usb_bus *host) return 0; } +static const struct phy_ops ops = { + .init = twl4030_phy_init, + .power_on = twl4030_phy_power_on, + .power_off = twl4030_phy_power_off, + .owner = THIS_MODULE, +}; + static int twl4030_usb_probe(struct platform_device *pdev) { struct twl4030_usb_data *pdata = dev_get_platdata(&pdev->dev); struct twl4030_usb *twl; + struct phy *phy; int status, err; struct usb_otg *otg; struct device_node *np = pdev->dev.of_node; + struct phy_provider *phy_provider; + struct phy_init_data *init_data = NULL; twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL); if (!twl) @@ -661,9 +668,10 @@ static int twl4030_usb_probe(struct platform_device *pdev) if (np) of_property_read_u32(np, "usb_mode", (enum twl4030_usb_mode *)&twl->usb_mode); - else if (pdata) + else if (pdata) { twl->usb_mode = pdata->usb_mode; - else { + init_data = pdata->init_data; + } else { dev_err(&pdev->dev, "twl4030 initialized without pdata\n"); return -EINVAL; } @@ -682,13 +690,24 @@ static int twl4030_usb_probe(struct platform_device *pdev) twl->phy.label = "twl4030"; twl->phy.otg = otg; twl->phy.type = USB_PHY_TYPE_USB2; - twl->phy.set_suspend = twl4030_set_suspend; - twl->phy.init = twl4030_usb_phy_init; otg->phy = &twl->phy; otg->set_host = twl4030_set_host; otg->set_peripheral = twl4030_set_peripheral; + phy_provider = devm_of_phy_provider_register(twl->dev, + of_phy_simple_xlate); + if (IS_ERR(phy_provider)) + return PTR_ERR(phy_provider); + + phy = devm_phy_create(twl->dev, &ops, init_data); + if (IS_ERR(phy)) { + dev_dbg(&pdev->dev, "Failed to create PHY\n"); + return PTR_ERR(phy); + } + + phy_set_drvdata(phy, twl); + /* init spinlock for workqueue */ spin_lock_init(&twl->lock); @@ -705,6 +724,8 @@ static int twl4030_usb_probe(struct platform_device *pdev) if (device_create_file(&pdev->dev, &dev_attr_vbus)) dev_warn(&pdev->dev, "could not create sysfs file\n"); + ATOMIC_INIT_NOTIFIER_HEAD(&twl->phy.notifier); + /* Our job is to use irqs and status from the power module * to keep the transceiver disabled when nothing's connected. * diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 96d6b2eef4f2..b51a7460cc49 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -504,6 +504,7 @@ config ASUS_WMI depends on BACKLIGHT_CLASS_DEVICE depends on RFKILL || RFKILL = n depends on HOTPLUG_PCI + depends on ACPI_VIDEO || ACPI_VIDEO = n select INPUT_SPARSEKMAP select LEDS_CLASS select NEW_LEDS diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index d3fd52036fd6..13ec195f0ca6 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -127,18 +127,17 @@ MODULE_PARM_DESC(minor, "default is -1 (automatic)"); #endif -static int kbd_backlight = 1; +static int kbd_backlight = -1; module_param(kbd_backlight, int, 0444); MODULE_PARM_DESC(kbd_backlight, "set this to 0 to disable keyboard backlight, " - "1 to enable it (default: 0)"); + "1 to enable it (default: no change from current value)"); -static int kbd_backlight_timeout; /* = 0 */ +static int kbd_backlight_timeout = -1; module_param(kbd_backlight_timeout, int, 0444); MODULE_PARM_DESC(kbd_backlight_timeout, - "set this to 0 to set the default 10 seconds timeout, " - "1 for 30 seconds, 2 for 60 seconds and 3 to disable timeout " - "(default: 0)"); + "meaningful values vary from 0 to 3 and their meaning depends " + "on the model (default: no change from current value)"); #ifdef CONFIG_PM_SLEEP static void sony_nc_kbd_backlight_resume(void); @@ -1844,6 +1843,8 @@ static int sony_nc_kbd_backlight_setup(struct platform_device *pd, if (!kbdbl_ctl) return -ENOMEM; + kbdbl_ctl->mode = kbd_backlight; + kbdbl_ctl->timeout = kbd_backlight_timeout; kbdbl_ctl->handle = handle; if (handle == 0x0137) kbdbl_ctl->base = 0x0C00; @@ -1870,8 +1871,8 @@ static int sony_nc_kbd_backlight_setup(struct platform_device *pd, if (ret) goto outmode; - __sony_nc_kbd_backlight_mode_set(kbd_backlight); - __sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout); + __sony_nc_kbd_backlight_mode_set(kbdbl_ctl->mode); + __sony_nc_kbd_backlight_timeout_set(kbdbl_ctl->timeout); return 0; @@ -1886,17 +1887,8 @@ outkzalloc: static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd) { if (kbdbl_ctl) { - int result; - device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr); device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr); - - /* restore the default hw behaviour */ - sony_call_snc_handle(kbdbl_ctl->handle, - kbdbl_ctl->base | 0x10000, &result); - sony_call_snc_handle(kbdbl_ctl->handle, - kbdbl_ctl->base + 0x200, &result); - kfree(kbdbl_ctl); kbdbl_ctl = NULL; } diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h index ffd53e3eb92f..c8873b0ca551 100644 --- a/drivers/pnp/base.h +++ b/drivers/pnp/base.h @@ -4,7 +4,7 @@ */ extern spinlock_t pnp_lock; -extern struct device_attribute pnp_interface_attrs[]; +extern const struct attribute_group *pnp_dev_groups[]; void *pnp_alloc(long size); int pnp_register_protocol(struct pnp_protocol *protocol); diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c index a39ee38a9414..6936e0acedcd 100644 --- a/drivers/pnp/driver.c +++ b/drivers/pnp/driver.c @@ -246,7 +246,7 @@ struct bus_type pnp_bus_type = { .remove = pnp_device_remove, .shutdown = pnp_device_shutdown, .pm = &pnp_bus_dev_pm_ops, - .dev_attrs = pnp_interface_attrs, + .dev_groups = pnp_dev_groups, }; int pnp_register_driver(struct pnp_driver *drv) diff --git a/drivers/pnp/interface.c b/drivers/pnp/interface.c index 0c201317284b..e6c403be09a9 100644 --- a/drivers/pnp/interface.c +++ b/drivers/pnp/interface.c @@ -203,8 +203,8 @@ static void pnp_print_option(pnp_info_buffer_t * buffer, char *space, } } -static ssize_t pnp_show_options(struct device *dmdev, - struct device_attribute *attr, char *buf) +static ssize_t options_show(struct device *dmdev, struct device_attribute *attr, + char *buf) { struct pnp_dev *dev = to_pnp_dev(dmdev); pnp_info_buffer_t *buffer; @@ -241,10 +241,10 @@ static ssize_t pnp_show_options(struct device *dmdev, kfree(buffer); return ret; } +static DEVICE_ATTR_RO(options); -static ssize_t pnp_show_current_resources(struct device *dmdev, - struct device_attribute *attr, - char *buf) +static ssize_t resources_show(struct device *dmdev, + struct device_attribute *attr, char *buf) { struct pnp_dev *dev = to_pnp_dev(dmdev); pnp_info_buffer_t *buffer; @@ -331,9 +331,9 @@ static char *pnp_get_resource_value(char *buf, return buf; } -static ssize_t pnp_set_current_resources(struct device *dmdev, - struct device_attribute *attr, - const char *ubuf, size_t count) +static ssize_t resources_store(struct device *dmdev, + struct device_attribute *attr, const char *ubuf, + size_t count) { struct pnp_dev *dev = to_pnp_dev(dmdev); char *buf = (void *)ubuf; @@ -434,9 +434,10 @@ done: return retval; return count; } +static DEVICE_ATTR_RW(resources); -static ssize_t pnp_show_current_ids(struct device *dmdev, - struct device_attribute *attr, char *buf) +static ssize_t id_show(struct device *dmdev, struct device_attribute *attr, + char *buf) { char *str = buf; struct pnp_dev *dev = to_pnp_dev(dmdev); @@ -448,12 +449,20 @@ static ssize_t pnp_show_current_ids(struct device *dmdev, } return (str - buf); } +static DEVICE_ATTR_RO(id); -struct device_attribute pnp_interface_attrs[] = { - __ATTR(resources, S_IRUGO | S_IWUSR, - pnp_show_current_resources, - pnp_set_current_resources), - __ATTR(options, S_IRUGO, pnp_show_options, NULL), - __ATTR(id, S_IRUGO, pnp_show_current_ids, NULL), - __ATTR_NULL, +static struct attribute *pnp_dev_attrs[] = { + &dev_attr_resources.attr, + &dev_attr_options.attr, + &dev_attr_id.attr, + NULL, +}; + +static const struct attribute_group pnp_dev_group = { + .attrs = pnp_dev_attrs, +}; + +const struct attribute_group *pnp_dev_groups[] = { + &pnp_dev_group, + NULL, }; diff --git a/drivers/rapidio/rio-driver.c b/drivers/rapidio/rio-driver.c index 3e9b6a78ad18..c9ae692d3451 100644 --- a/drivers/rapidio/rio-driver.c +++ b/drivers/rapidio/rio-driver.c @@ -223,8 +223,8 @@ struct device rio_bus = { struct bus_type rio_bus_type = { .name = "rapidio", .match = rio_match_bus, - .dev_attrs = rio_dev_attrs, - .bus_attrs = rio_bus_attrs, + .dev_groups = rio_dev_groups, + .bus_groups = rio_bus_groups, .probe = rio_device_probe, .remove = rio_device_remove, .uevent = rio_uevent, diff --git a/drivers/rapidio/rio-sysfs.c b/drivers/rapidio/rio-sysfs.c index 9331be646dc3..e0221c6d0cc2 100644 --- a/drivers/rapidio/rio-sysfs.c +++ b/drivers/rapidio/rio-sysfs.c @@ -27,6 +27,7 @@ field##_show(struct device *dev, struct device_attribute *attr, char *buf) \ \ return sprintf(buf, format_string, rdev->field); \ } \ +static DEVICE_ATTR_RO(field); rio_config_attr(did, "0x%04x\n"); rio_config_attr(vid, "0x%04x\n"); @@ -54,6 +55,7 @@ static ssize_t routes_show(struct device *dev, struct device_attribute *attr, ch return (str - buf); } +static DEVICE_ATTR_RO(routes); static ssize_t lprev_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -63,6 +65,7 @@ static ssize_t lprev_show(struct device *dev, return sprintf(buf, "%s\n", (rdev->prev) ? rio_name(rdev->prev) : "root"); } +static DEVICE_ATTR_RO(lprev); static ssize_t lnext_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -83,6 +86,7 @@ static ssize_t lnext_show(struct device *dev, return str - buf; } +static DEVICE_ATTR_RO(lnext); static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -92,23 +96,29 @@ static ssize_t modalias_show(struct device *dev, return sprintf(buf, "rapidio:v%04Xd%04Xav%04Xad%04X\n", rdev->vid, rdev->did, rdev->asm_vid, rdev->asm_did); } +static DEVICE_ATTR_RO(modalias); + +static struct attribute *rio_dev_attrs[] = { + &dev_attr_did.attr, + &dev_attr_vid.attr, + &dev_attr_device_rev.attr, + &dev_attr_asm_did.attr, + &dev_attr_asm_vid.attr, + &dev_attr_asm_rev.attr, + &dev_attr_lprev.attr, + &dev_attr_destid.attr, + &dev_attr_modalias.attr, + NULL, +}; -struct device_attribute rio_dev_attrs[] = { - __ATTR_RO(did), - __ATTR_RO(vid), - __ATTR_RO(device_rev), - __ATTR_RO(asm_did), - __ATTR_RO(asm_vid), - __ATTR_RO(asm_rev), - __ATTR_RO(lprev), - __ATTR_RO(destid), - __ATTR_RO(modalias), - __ATTR_NULL, +static const struct attribute_group rio_dev_group = { + .attrs = rio_dev_attrs, }; -static DEVICE_ATTR(routes, S_IRUGO, routes_show, NULL); -static DEVICE_ATTR(lnext, S_IRUGO, lnext_show, NULL); -static DEVICE_ATTR(hopcount, S_IRUGO, hopcount_show, NULL); +const struct attribute_group *rio_dev_groups[] = { + &rio_dev_group, + NULL, +}; static ssize_t rio_read_config(struct file *filp, struct kobject *kobj, @@ -316,8 +326,18 @@ exit: return rc; } +static BUS_ATTR(scan, (S_IWUSR|S_IWGRP), NULL, bus_scan_store); + +static struct attribute *rio_bus_attrs[] = { + &bus_attr_scan.attr, + NULL, +}; + +static const struct attribute_group rio_bus_group = { + .attrs = rio_bus_attrs, +}; -struct bus_attribute rio_bus_attrs[] = { - __ATTR(scan, (S_IWUSR|S_IWGRP), NULL, bus_scan_store), - __ATTR_NULL +const struct attribute_group *rio_bus_groups[] = { + &rio_bus_group, + NULL, }; diff --git a/drivers/rapidio/rio.h b/drivers/rapidio/rio.h index 085215cd8502..5f99d22ad0b0 100644 --- a/drivers/rapidio/rio.h +++ b/drivers/rapidio/rio.h @@ -48,8 +48,8 @@ extern struct rio_mport *rio_find_mport(int mport_id); extern int rio_mport_scan(int mport_id); /* Structures internal to the RIO core code */ -extern struct device_attribute rio_dev_attrs[]; -extern struct bus_attribute rio_bus_attrs[]; +extern const struct attribute_group *rio_dev_groups[]; +extern const struct attribute_group *rio_bus_groups[]; #define RIO_GET_DID(size, x) (size ? (x & 0xffff) : ((x & 0x00ff0000) >> 16)) #define RIO_SET_DID(size, x) (size ? (x & 0xffff) : ((x & 0x000000ff) << 16)) diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 5adb2042e824..cee7e2708a1f 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -2077,6 +2077,7 @@ dasd_eckd_build_format(struct dasd_device *base, int intensity = 0; int r0_perm; int nr_tracks; + int use_prefix; startdev = dasd_alias_get_start_dev(base); if (!startdev) @@ -2106,28 +2107,46 @@ dasd_eckd_build_format(struct dasd_device *base, intensity = fdata->intensity; } + use_prefix = base_priv->features.feature[8] & 0x01; + switch (intensity) { case 0x00: /* Normal format */ case 0x08: /* Normal format, use cdl. */ cplength = 2 + (rpt*nr_tracks); - datasize = sizeof(struct PFX_eckd_data) + - sizeof(struct LO_eckd_data) + - rpt * nr_tracks * sizeof(struct eckd_count); + if (use_prefix) + datasize = sizeof(struct PFX_eckd_data) + + sizeof(struct LO_eckd_data) + + rpt * nr_tracks * sizeof(struct eckd_count); + else + datasize = sizeof(struct DE_eckd_data) + + sizeof(struct LO_eckd_data) + + rpt * nr_tracks * sizeof(struct eckd_count); break; case 0x01: /* Write record zero and format track. */ case 0x09: /* Write record zero and format track, use cdl. */ cplength = 2 + rpt * nr_tracks; - datasize = sizeof(struct PFX_eckd_data) + - sizeof(struct LO_eckd_data) + - sizeof(struct eckd_count) + - rpt * nr_tracks * sizeof(struct eckd_count); + if (use_prefix) + datasize = sizeof(struct PFX_eckd_data) + + sizeof(struct LO_eckd_data) + + sizeof(struct eckd_count) + + rpt * nr_tracks * sizeof(struct eckd_count); + else + datasize = sizeof(struct DE_eckd_data) + + sizeof(struct LO_eckd_data) + + sizeof(struct eckd_count) + + rpt * nr_tracks * sizeof(struct eckd_count); break; case 0x04: /* Invalidate track. */ case 0x0c: /* Invalidate track, use cdl. */ cplength = 3; - datasize = sizeof(struct PFX_eckd_data) + - sizeof(struct LO_eckd_data) + - sizeof(struct eckd_count); + if (use_prefix) + datasize = sizeof(struct PFX_eckd_data) + + sizeof(struct LO_eckd_data) + + sizeof(struct eckd_count); + else + datasize = sizeof(struct DE_eckd_data) + + sizeof(struct LO_eckd_data) + + sizeof(struct eckd_count); break; default: dev_warn(&startdev->cdev->dev, @@ -2147,14 +2166,25 @@ dasd_eckd_build_format(struct dasd_device *base, switch (intensity & ~0x08) { case 0x00: /* Normal format. */ - prefix(ccw++, (struct PFX_eckd_data *) data, - fdata->start_unit, fdata->stop_unit, - DASD_ECKD_CCW_WRITE_CKD, base, startdev); - /* grant subsystem permission to format R0 */ - if (r0_perm) - ((struct PFX_eckd_data *)data) - ->define_extent.ga_extended |= 0x04; - data += sizeof(struct PFX_eckd_data); + if (use_prefix) { + prefix(ccw++, (struct PFX_eckd_data *) data, + fdata->start_unit, fdata->stop_unit, + DASD_ECKD_CCW_WRITE_CKD, base, startdev); + /* grant subsystem permission to format R0 */ + if (r0_perm) + ((struct PFX_eckd_data *)data) + ->define_extent.ga_extended |= 0x04; + data += sizeof(struct PFX_eckd_data); + } else { + define_extent(ccw++, (struct DE_eckd_data *) data, + fdata->start_unit, fdata->stop_unit, + DASD_ECKD_CCW_WRITE_CKD, startdev); + /* grant subsystem permission to format R0 */ + if (r0_perm) + ((struct DE_eckd_data *) data) + ->ga_extended |= 0x04; + data += sizeof(struct DE_eckd_data); + } ccw[-1].flags |= CCW_FLAG_CC; locate_record(ccw++, (struct LO_eckd_data *) data, fdata->start_unit, 0, rpt*nr_tracks, @@ -2163,11 +2193,18 @@ dasd_eckd_build_format(struct dasd_device *base, data += sizeof(struct LO_eckd_data); break; case 0x01: /* Write record zero + format track. */ - prefix(ccw++, (struct PFX_eckd_data *) data, - fdata->start_unit, fdata->stop_unit, - DASD_ECKD_CCW_WRITE_RECORD_ZERO, - base, startdev); - data += sizeof(struct PFX_eckd_data); + if (use_prefix) { + prefix(ccw++, (struct PFX_eckd_data *) data, + fdata->start_unit, fdata->stop_unit, + DASD_ECKD_CCW_WRITE_RECORD_ZERO, + base, startdev); + data += sizeof(struct PFX_eckd_data); + } else { + define_extent(ccw++, (struct DE_eckd_data *) data, + fdata->start_unit, fdata->stop_unit, + DASD_ECKD_CCW_WRITE_RECORD_ZERO, startdev); + data += sizeof(struct DE_eckd_data); + } ccw[-1].flags |= CCW_FLAG_CC; locate_record(ccw++, (struct LO_eckd_data *) data, fdata->start_unit, 0, rpt * nr_tracks + 1, @@ -2176,10 +2213,17 @@ dasd_eckd_build_format(struct dasd_device *base, data += sizeof(struct LO_eckd_data); break; case 0x04: /* Invalidate track. */ - prefix(ccw++, (struct PFX_eckd_data *) data, - fdata->start_unit, fdata->stop_unit, - DASD_ECKD_CCW_WRITE_CKD, base, startdev); - data += sizeof(struct PFX_eckd_data); + if (use_prefix) { + prefix(ccw++, (struct PFX_eckd_data *) data, + fdata->start_unit, fdata->stop_unit, + DASD_ECKD_CCW_WRITE_CKD, base, startdev); + data += sizeof(struct PFX_eckd_data); + } else { + define_extent(ccw++, (struct DE_eckd_data *) data, + fdata->start_unit, fdata->stop_unit, + DASD_ECKD_CCW_WRITE_CKD, startdev); + data += sizeof(struct DE_eckd_data); + } ccw[-1].flags |= CCW_FLAG_CC; locate_record(ccw++, (struct LO_eckd_data *) data, fdata->start_unit, 0, 1, diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c index a3aa374799dc..1fe264379e0d 100644 --- a/drivers/s390/char/sclp.c +++ b/drivers/s390/char/sclp.c @@ -486,7 +486,7 @@ sclp_sync_wait(void) timeout = 0; if (timer_pending(&sclp_request_timer)) { /* Get timeout TOD value */ - timeout = get_tod_clock() + + timeout = get_tod_clock_fast() + sclp_tod_from_jiffies(sclp_request_timer.expires - jiffies); } @@ -508,7 +508,7 @@ sclp_sync_wait(void) while (sclp_running_state != sclp_running_state_idle) { /* Check for expired request timer */ if (timer_pending(&sclp_request_timer) && - get_tod_clock() > timeout && + get_tod_clock_fast() > timeout && del_timer(&sclp_request_timer)) sclp_request_timer.function(sclp_request_timer.data); cpu_relax(); diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c index 8cd34bf644b3..77df9cb00688 100644 --- a/drivers/s390/char/sclp_cmd.c +++ b/drivers/s390/char/sclp_cmd.c @@ -145,9 +145,11 @@ bool __init sclp_has_linemode(void) if (sccb->header.response_code != 0x20) return 0; - if (sccb->sclp_send_mask & (EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK)) - return 1; - return 0; + if (!(sccb->sclp_send_mask & (EVTYP_OPCMD_MASK | EVTYP_PMSGCMD_MASK))) + return 0; + if (!(sccb->sclp_receive_mask & (EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK))) + return 0; + return 1; } bool __init sclp_has_vt220(void) diff --git a/drivers/s390/char/tty3270.c b/drivers/s390/char/tty3270.c index a0f47c83fd62..3f4ca4e09a4c 100644 --- a/drivers/s390/char/tty3270.c +++ b/drivers/s390/char/tty3270.c @@ -810,7 +810,7 @@ static void tty3270_resize_work(struct work_struct *work) struct winsize ws; screen = tty3270_alloc_screen(tp->n_rows, tp->n_cols); - if (!screen) + if (IS_ERR(screen)) return; /* Switch to new output size */ spin_lock_bh(&tp->view.lock); diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c index 9b3a24e8d3a0..cf31d3321dab 100644 --- a/drivers/s390/char/vmlogrdr.c +++ b/drivers/s390/char/vmlogrdr.c @@ -313,7 +313,7 @@ static int vmlogrdr_open (struct inode *inode, struct file *filp) int ret; dev_num = iminor(inode); - if (dev_num > MAXMINOR) + if (dev_num >= MAXMINOR) return -ENODEV; logptr = &sys_ser[dev_num]; diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index d7da67a31c77..88e35d85d205 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -878,9 +878,9 @@ static void css_reset(void) atomic_inc(&chpid_reset_count); } /* Wait for machine check for all channel paths. */ - timeout = get_tod_clock() + (RCHP_TIMEOUT << 12); + timeout = get_tod_clock_fast() + (RCHP_TIMEOUT << 12); while (atomic_read(&chpid_reset_count) != 0) { - if (get_tod_clock() > timeout) + if (get_tod_clock_fast() > timeout) break; cpu_relax(); } diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 8ed52aa49122..bbd3e511c771 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -338,10 +338,10 @@ again: retries++; if (!start_time) { - start_time = get_tod_clock(); + start_time = get_tod_clock_fast(); goto again; } - if ((get_tod_clock() - start_time) < QDIO_BUSY_BIT_PATIENCE) + if (get_tod_clock_fast() - start_time < QDIO_BUSY_BIT_PATIENCE) goto again; } if (retries) { @@ -504,7 +504,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q) int count, stop; unsigned char state = 0; - q->timestamp = get_tod_clock(); + q->timestamp = get_tod_clock_fast(); /* * Don't check 128 buffers, as otherwise qdio_inbound_q_moved @@ -595,7 +595,7 @@ static inline int qdio_inbound_q_done(struct qdio_q *q) * At this point we know, that inbound first_to_check * has (probably) not moved (see qdio_inbound_processing). */ - if (get_tod_clock() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) { + if (get_tod_clock_fast() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) { DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in done:%02x", q->first_to_check); return 1; @@ -728,7 +728,7 @@ static int get_outbound_buffer_frontier(struct qdio_q *q) int count, stop; unsigned char state = 0; - q->timestamp = get_tod_clock(); + q->timestamp = get_tod_clock_fast(); if (need_siga_sync(q)) if (((queue_type(q) != QDIO_IQDIO_QFMT) && diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c index feab3a5e50b5..757eb0716d45 100644 --- a/drivers/scsi/BusLogic.c +++ b/drivers/scsi/BusLogic.c @@ -696,7 +696,7 @@ static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter) while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER, pci_device)) != NULL) { - struct blogic_adapter *adapter = adapter; + struct blogic_adapter *host_adapter = adapter; struct blogic_adapter_info adapter_info; enum blogic_isa_ioport mod_ioaddr_req; unsigned char bus; @@ -744,9 +744,9 @@ static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter) known and enabled, note that the particular Standard ISA I/O Address should not be probed. */ - adapter->io_addr = io_addr; - blogic_intreset(adapter); - if (blogic_cmd(adapter, BLOGIC_INQ_PCI_INFO, NULL, 0, + host_adapter->io_addr = io_addr; + blogic_intreset(host_adapter); + if (blogic_cmd(host_adapter, BLOGIC_INQ_PCI_INFO, NULL, 0, &adapter_info, sizeof(adapter_info)) == sizeof(adapter_info)) { if (adapter_info.isa_port < 6) @@ -762,7 +762,7 @@ static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter) I/O Address assigned at system initialization. */ mod_ioaddr_req = BLOGIC_IO_DISABLE; - blogic_cmd(adapter, BLOGIC_MOD_IOADDR, &mod_ioaddr_req, + blogic_cmd(host_adapter, BLOGIC_MOD_IOADDR, &mod_ioaddr_req, sizeof(mod_ioaddr_req), NULL, 0); /* For the first MultiMaster Host Adapter enumerated, @@ -779,12 +779,12 @@ static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter) fetch_localram.offset = BLOGIC_AUTOSCSI_BASE + 45; fetch_localram.count = sizeof(autoscsi_byte45); - blogic_cmd(adapter, BLOGIC_FETCH_LOCALRAM, + blogic_cmd(host_adapter, BLOGIC_FETCH_LOCALRAM, &fetch_localram, sizeof(fetch_localram), &autoscsi_byte45, sizeof(autoscsi_byte45)); - blogic_cmd(adapter, BLOGIC_GET_BOARD_ID, NULL, 0, &id, - sizeof(id)); + blogic_cmd(host_adapter, BLOGIC_GET_BOARD_ID, NULL, 0, + &id, sizeof(id)); if (id.fw_ver_digit1 == '5') force_scan_order = autoscsi_byte45.force_scan_order; diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 408a42ef787a..f0d432c139d0 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -771,6 +771,8 @@ static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long static int aac_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) { struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata; + if (!capable(CAP_SYS_RAWIO)) + return -EPERM; return aac_compat_do_ioctl(dev, cmd, (unsigned long)arg); } diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c index c9382d6eee78..1f4f22fe8281 100644 --- a/drivers/scsi/fcoe/fcoe_sysfs.c +++ b/drivers/scsi/fcoe/fcoe_sysfs.c @@ -553,16 +553,20 @@ static struct device_type fcoe_fcf_device_type = { .release = fcoe_fcf_device_release, }; -static struct bus_attribute fcoe_bus_attr_group[] = { - __ATTR(ctlr_create, S_IWUSR, NULL, fcoe_ctlr_create_store), - __ATTR(ctlr_destroy, S_IWUSR, NULL, fcoe_ctlr_destroy_store), - __ATTR_NULL +static BUS_ATTR(ctlr_create, S_IWUSR, NULL, fcoe_ctlr_create_store); +static BUS_ATTR(ctlr_destroy, S_IWUSR, NULL, fcoe_ctlr_destroy_store); + +static struct attribute *fcoe_bus_attrs[] = { + &bus_attr_ctlr_create.attr, + &bus_attr_ctlr_destroy.attr, + NULL, }; +ATTRIBUTE_GROUPS(fcoe_bus); static struct bus_type fcoe_bus_type = { .name = "fcoe", .match = &fcoe_bus_match, - .bus_attrs = fcoe_bus_attr_group, + .bus_groups = fcoe_bus_groups, }; /** diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index 2ef497ebadc0..ee5c1833eb73 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -20,7 +20,7 @@ * | Device Discovery | 0x2095 | 0x2020-0x2022, | * | | | 0x2011-0x2012, | * | | | 0x2016 | - * | Queue Command and IO tracing | 0x3058 | 0x3006-0x300b | + * | Queue Command and IO tracing | 0x3059 | 0x3006-0x300b | * | | | 0x3027-0x3028 | * | | | 0x303d-0x3041 | * | | | 0x302d,0x3033 | diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index df1b30ba938c..ff9c86b1a0d8 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -1957,6 +1957,15 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) que = MSW(sts->handle); req = ha->req_q_map[que]; + /* Check for invalid queue pointer */ + if (req == NULL || + que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) { + ql_dbg(ql_dbg_io, vha, 0x3059, + "Invalid status handle (0x%x): Bad req pointer. req=%p, " + "que=%u.\n", sts->handle, req, que); + return; + } + /* Validate handle. */ if (handle < req->num_outstanding_cmds) sp = req->outstanding_cmds[handle]; diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index e62d17d41d4e..5693f6d7eddb 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2854,6 +2854,7 @@ static void sd_probe_async(void *data, async_cookie_t cookie) gd->events |= DISK_EVENT_MEDIA_CHANGE; } + blk_pm_runtime_init(sdp->request_queue, dev); add_disk(gd); if (sdkp->capacity) sd_dif_config_host(sdkp); @@ -2862,7 +2863,6 @@ static void sd_probe_async(void *data, async_cookie_t cookie) sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n", sdp->removable ? "removable " : ""); - blk_pm_runtime_init(sdp->request_queue, dev); scsi_autopm_put_device(sdp); put_device(&sdkp->dev); } diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 5cbc4bb1b395..df5e961484e1 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -105,8 +105,11 @@ static int scatter_elem_sz_prev = SG_SCATTER_SZ; static int sg_add(struct device *, struct class_interface *); static void sg_remove(struct device *, struct class_interface *); +static DEFINE_SPINLOCK(sg_open_exclusive_lock); + static DEFINE_IDR(sg_index_idr); -static DEFINE_RWLOCK(sg_index_lock); +static DEFINE_RWLOCK(sg_index_lock); /* Also used to lock + file descriptor list for device */ static struct class_interface sg_interface = { .add_dev = sg_add, @@ -143,7 +146,8 @@ typedef struct sg_request { /* SG_MAX_QUEUE requests outstanding per file */ } Sg_request; typedef struct sg_fd { /* holds the state of a file descriptor */ - struct list_head sfd_siblings; /* protected by sfd_lock of device */ + /* sfd_siblings is protected by sg_index_lock */ + struct list_head sfd_siblings; struct sg_device *parentdp; /* owning device */ wait_queue_head_t read_wait; /* queue read until command done */ rwlock_t rq_list_lock; /* protect access to list in req_arr */ @@ -166,12 +170,13 @@ typedef struct sg_fd { /* holds the state of a file descriptor */ typedef struct sg_device { /* holds the state of each scsi generic device */ struct scsi_device *device; + wait_queue_head_t o_excl_wait; /* queue open() when O_EXCL in use */ int sg_tablesize; /* adapter's max scatter-gather table size */ u32 index; /* device index number */ - spinlock_t sfd_lock; /* protect file descriptor list for device */ + /* sfds is protected by sg_index_lock */ struct list_head sfds; - struct rw_semaphore o_sem; /* exclude open should hold this rwsem */ volatile char detached; /* 0->attached, 1->detached pending removal */ + /* exclude protected by sg_open_exclusive_lock */ char exclude; /* opened for exclusive access */ char sgdebug; /* 0->off, 1->sense, 9->dump dev, 10-> all devs */ struct gendisk *disk; @@ -220,14 +225,35 @@ static int sg_allow_access(struct file *filp, unsigned char *cmd) return blk_verify_command(cmd, filp->f_mode & FMODE_WRITE); } +static int get_exclude(Sg_device *sdp) +{ + unsigned long flags; + int ret; + + spin_lock_irqsave(&sg_open_exclusive_lock, flags); + ret = sdp->exclude; + spin_unlock_irqrestore(&sg_open_exclusive_lock, flags); + return ret; +} + +static int set_exclude(Sg_device *sdp, char val) +{ + unsigned long flags; + + spin_lock_irqsave(&sg_open_exclusive_lock, flags); + sdp->exclude = val; + spin_unlock_irqrestore(&sg_open_exclusive_lock, flags); + return val; +} + static int sfds_list_empty(Sg_device *sdp) { unsigned long flags; int ret; - spin_lock_irqsave(&sdp->sfd_lock, flags); + read_lock_irqsave(&sg_index_lock, flags); ret = list_empty(&sdp->sfds); - spin_unlock_irqrestore(&sdp->sfd_lock, flags); + read_unlock_irqrestore(&sg_index_lock, flags); return ret; } @@ -239,6 +265,7 @@ sg_open(struct inode *inode, struct file *filp) struct request_queue *q; Sg_device *sdp; Sg_fd *sfp; + int res; int retval; nonseekable_open(inode, filp); @@ -267,52 +294,54 @@ sg_open(struct inode *inode, struct file *filp) goto error_out; } - if ((flags & O_EXCL) && (O_RDONLY == (flags & O_ACCMODE))) { - retval = -EPERM; /* Can't lock it with read only access */ - goto error_out; - } - if (flags & O_NONBLOCK) { - if (flags & O_EXCL) { - if (!down_write_trylock(&sdp->o_sem)) { - retval = -EBUSY; - goto error_out; - } - } else { - if (!down_read_trylock(&sdp->o_sem)) { - retval = -EBUSY; - goto error_out; - } + if (flags & O_EXCL) { + if (O_RDONLY == (flags & O_ACCMODE)) { + retval = -EPERM; /* Can't lock it with read only access */ + goto error_out; + } + if (!sfds_list_empty(sdp) && (flags & O_NONBLOCK)) { + retval = -EBUSY; + goto error_out; + } + res = wait_event_interruptible(sdp->o_excl_wait, + ((!sfds_list_empty(sdp) || get_exclude(sdp)) ? 0 : set_exclude(sdp, 1))); + if (res) { + retval = res; /* -ERESTARTSYS because signal hit process */ + goto error_out; + } + } else if (get_exclude(sdp)) { /* some other fd has an exclusive lock on dev */ + if (flags & O_NONBLOCK) { + retval = -EBUSY; + goto error_out; + } + res = wait_event_interruptible(sdp->o_excl_wait, !get_exclude(sdp)); + if (res) { + retval = res; /* -ERESTARTSYS because signal hit process */ + goto error_out; } - } else { - if (flags & O_EXCL) - down_write(&sdp->o_sem); - else - down_read(&sdp->o_sem); } - /* Since write lock is held, no need to check sfd_list */ - if (flags & O_EXCL) - sdp->exclude = 1; /* used by release lock */ - + if (sdp->detached) { + retval = -ENODEV; + goto error_out; + } if (sfds_list_empty(sdp)) { /* no existing opens on this device */ sdp->sgdebug = 0; q = sdp->device->request_queue; sdp->sg_tablesize = queue_max_segments(q); } - sfp = sg_add_sfp(sdp, dev); - if (!IS_ERR(sfp)) + if ((sfp = sg_add_sfp(sdp, dev))) filp->private_data = sfp; - /* retval is already provably zero at this point because of the - * check after retval = scsi_autopm_get_device(sdp->device)) - */ else { - retval = PTR_ERR(sfp); - if (flags & O_EXCL) { - sdp->exclude = 0; /* undo if error */ - up_write(&sdp->o_sem); - } else - up_read(&sdp->o_sem); + set_exclude(sdp, 0); /* undo if error */ + wake_up_interruptible(&sdp->o_excl_wait); + } + retval = -ENOMEM; + goto error_out; + } + retval = 0; error_out: + if (retval) { scsi_autopm_put_device(sdp->device); sdp_put: scsi_device_put(sdp->device); @@ -329,18 +358,13 @@ sg_release(struct inode *inode, struct file *filp) { Sg_device *sdp; Sg_fd *sfp; - int excl; if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp))) return -ENXIO; SCSI_LOG_TIMEOUT(3, printk("sg_release: %s\n", sdp->disk->disk_name)); - excl = sdp->exclude; - sdp->exclude = 0; - if (excl) - up_write(&sdp->o_sem); - else - up_read(&sdp->o_sem); + set_exclude(sdp, 0); + wake_up_interruptible(&sdp->o_excl_wait); scsi_autopm_put_device(sdp->device); kref_put(&sfp->f_ref, sg_remove_sfp); @@ -1391,9 +1415,8 @@ static Sg_device *sg_alloc(struct gendisk *disk, struct scsi_device *scsidp) disk->first_minor = k; sdp->disk = disk; sdp->device = scsidp; - spin_lock_init(&sdp->sfd_lock); INIT_LIST_HEAD(&sdp->sfds); - init_rwsem(&sdp->o_sem); + init_waitqueue_head(&sdp->o_excl_wait); sdp->sg_tablesize = queue_max_segments(q); sdp->index = k; kref_init(&sdp->d_ref); @@ -1526,13 +1549,11 @@ static void sg_remove(struct device *cl_dev, struct class_interface *cl_intf) /* Need a write lock to set sdp->detached. */ write_lock_irqsave(&sg_index_lock, iflags); - spin_lock(&sdp->sfd_lock); sdp->detached = 1; list_for_each_entry(sfp, &sdp->sfds, sfd_siblings) { wake_up_interruptible(&sfp->read_wait); kill_fasync(&sfp->async_qp, SIGPOLL, POLL_HUP); } - spin_unlock(&sdp->sfd_lock); write_unlock_irqrestore(&sg_index_lock, iflags); sysfs_remove_link(&scsidp->sdev_gendev.kobj, "generic"); @@ -2043,7 +2064,7 @@ sg_add_sfp(Sg_device * sdp, int dev) sfp = kzalloc(sizeof(*sfp), GFP_ATOMIC | __GFP_NOWARN); if (!sfp) - return ERR_PTR(-ENOMEM); + return NULL; init_waitqueue_head(&sfp->read_wait); rwlock_init(&sfp->rq_list_lock); @@ -2057,13 +2078,9 @@ sg_add_sfp(Sg_device * sdp, int dev) sfp->cmd_q = SG_DEF_COMMAND_Q; sfp->keep_orphan = SG_DEF_KEEP_ORPHAN; sfp->parentdp = sdp; - spin_lock_irqsave(&sdp->sfd_lock, iflags); - if (sdp->detached) { - spin_unlock_irqrestore(&sdp->sfd_lock, iflags); - return ERR_PTR(-ENODEV); - } + write_lock_irqsave(&sg_index_lock, iflags); list_add_tail(&sfp->sfd_siblings, &sdp->sfds); - spin_unlock_irqrestore(&sdp->sfd_lock, iflags); + write_unlock_irqrestore(&sg_index_lock, iflags); SCSI_LOG_TIMEOUT(3, printk("sg_add_sfp: sfp=0x%p\n", sfp)); if (unlikely(sg_big_buff != def_reserved_size)) sg_big_buff = def_reserved_size; @@ -2113,9 +2130,10 @@ static void sg_remove_sfp(struct kref *kref) struct sg_device *sdp = sfp->parentdp; unsigned long iflags; - spin_lock_irqsave(&sdp->sfd_lock, iflags); + write_lock_irqsave(&sg_index_lock, iflags); list_del(&sfp->sfd_siblings); - spin_unlock_irqrestore(&sdp->sfd_lock, iflags); + write_unlock_irqrestore(&sg_index_lock, iflags); + wake_up_interruptible(&sdp->o_excl_wait); INIT_WORK(&sfp->ew.work, sg_remove_sfp_usercontext); schedule_work(&sfp->ew.work); @@ -2502,7 +2520,7 @@ static int sg_proc_seq_show_devstrs(struct seq_file *s, void *v) return 0; } -/* must be called while holding sg_index_lock and sfd_lock */ +/* must be called while holding sg_index_lock */ static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp) { int k, m, new_interface, blen, usg; @@ -2587,26 +2605,22 @@ static int sg_proc_seq_show_debug(struct seq_file *s, void *v) read_lock_irqsave(&sg_index_lock, iflags); sdp = it ? sg_lookup_dev(it->index) : NULL; - if (sdp) { - spin_lock(&sdp->sfd_lock); - if (!list_empty(&sdp->sfds)) { - struct scsi_device *scsidp = sdp->device; + if (sdp && !list_empty(&sdp->sfds)) { + struct scsi_device *scsidp = sdp->device; - seq_printf(s, " >>> device=%s ", sdp->disk->disk_name); - if (sdp->detached) - seq_printf(s, "detached pending close "); - else - seq_printf - (s, "scsi%d chan=%d id=%d lun=%d em=%d", - scsidp->host->host_no, - scsidp->channel, scsidp->id, - scsidp->lun, - scsidp->host->hostt->emulated); - seq_printf(s, " sg_tablesize=%d excl=%d\n", - sdp->sg_tablesize, sdp->exclude); - sg_proc_debug_helper(s, sdp); - } - spin_unlock(&sdp->sfd_lock); + seq_printf(s, " >>> device=%s ", sdp->disk->disk_name); + if (sdp->detached) + seq_printf(s, "detached pending close "); + else + seq_printf + (s, "scsi%d chan=%d id=%d lun=%d em=%d", + scsidp->host->host_no, + scsidp->channel, scsidp->id, + scsidp->lun, + scsidp->host->hostt->emulated); + seq_printf(s, " sg_tablesize=%d excl=%d\n", + sdp->sg_tablesize, get_exclude(sdp)); + sg_proc_debug_helper(s, sdp); } read_unlock_irqrestore(&sg_index_lock, iflags); return 0; diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index fd7cc566095a..d4ac60b4a56e 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -1583,7 +1583,7 @@ static int atmel_spi_probe(struct platform_device *pdev) /* Initialize the hardware */ ret = clk_prepare_enable(clk); if (ret) - goto out_unmap_regs; + goto out_free_irq; spi_writel(as, CR, SPI_BIT(SWRST)); spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */ if (as->caps.has_wdrbt) { @@ -1614,6 +1614,7 @@ out_free_dma: spi_writel(as, CR, SPI_BIT(SWRST)); spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */ clk_disable_unprepare(clk); +out_free_irq: free_irq(irq, master); out_unmap_regs: iounmap(as->regs); diff --git a/drivers/spi/spi-clps711x.c b/drivers/spi/spi-clps711x.c index 5655acf55bfe..6416798828e7 100644 --- a/drivers/spi/spi-clps711x.c +++ b/drivers/spi/spi-clps711x.c @@ -226,7 +226,6 @@ static int spi_clps711x_probe(struct platform_device *pdev) dev_name(&pdev->dev), hw); if (ret) { dev_err(&pdev->dev, "Can't request IRQ\n"); - clk_put(hw->spi_clk); goto clk_out; } @@ -247,7 +246,6 @@ err_out: gpio_free(hw->chipselect[i]); spi_master_put(master); - kfree(master); return ret; } @@ -263,7 +261,6 @@ static int spi_clps711x_remove(struct platform_device *pdev) gpio_free(hw->chipselect[i]); spi_unregister_master(master); - kfree(master); return 0; } diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 6cd07d13ecab..4e44575bd87a 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -476,15 +476,9 @@ static int dspi_probe(struct platform_device *pdev) master->bus_num = bus_num; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "can't get platform resource\n"); - ret = -EINVAL; - goto out_master_put; - } - dspi->base = devm_ioremap_resource(&pdev->dev, res); - if (!dspi->base) { - ret = -EINVAL; + if (IS_ERR(dspi->base)) { + ret = PTR_ERR(dspi->base); goto out_master_put; } diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c index dbc5e999a1f5..6adf4e35816d 100644 --- a/drivers/spi/spi-mpc512x-psc.c +++ b/drivers/spi/spi-mpc512x-psc.c @@ -522,8 +522,10 @@ static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr, psc_num = master->bus_num; snprintf(clk_name, sizeof(clk_name), "psc%d_mclk", psc_num); clk = devm_clk_get(dev, clk_name); - if (IS_ERR(clk)) + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); goto free_irq; + } ret = clk_prepare_enable(clk); if (ret) goto free_irq; diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 2eb06ee0b326..c1a50674c1e3 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -546,8 +546,17 @@ static irqreturn_t ssp_int(int irq, void *dev_id) if (pm_runtime_suspended(&drv_data->pdev->dev)) return IRQ_NONE; - sccr1_reg = read_SSCR1(reg); + /* + * If the device is not yet in RPM suspended state and we get an + * interrupt that is meant for another device, check if status bits + * are all set to one. That means that the device is already + * powered off. + */ status = read_SSSR(reg); + if (status == ~0) + return IRQ_NONE; + + sccr1_reg = read_SSCR1(reg); /* Ignore possible writes if we don't need to write */ if (!(sccr1_reg & SSCR1_TIE)) diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 512b8893893b..a80376dc3a10 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -1428,6 +1428,8 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) S3C64XX_SPI_INT_TX_OVERRUN_EN | S3C64XX_SPI_INT_TX_UNDERRUN_EN, sdd->regs + S3C64XX_SPI_INT_EN); + pm_runtime_enable(&pdev->dev); + if (spi_register_master(master)) { dev_err(&pdev->dev, "cannot register SPI master\n"); ret = -EBUSY; @@ -1440,8 +1442,6 @@ static int s3c64xx_spi_probe(struct platform_device *pdev) mem_res, sdd->rx_dma.dmach, sdd->tx_dma.dmach); - pm_runtime_enable(&pdev->dev); - return 0; err3: diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c index 0b68cb592fa4..e488a90a98b8 100644 --- a/drivers/spi/spi-sh-hspi.c +++ b/drivers/spi/spi-sh-hspi.c @@ -296,6 +296,8 @@ static int hspi_probe(struct platform_device *pdev) goto error1; } + pm_runtime_enable(&pdev->dev); + master->num_chipselect = 1; master->bus_num = pdev->id; master->setup = hspi_setup; @@ -309,8 +311,6 @@ static int hspi_probe(struct platform_device *pdev) goto error1; } - pm_runtime_enable(&pdev->dev); - return 0; error1: diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c index e55ddf7cd7c2..32a811d11c25 100644 --- a/drivers/ssb/main.c +++ b/drivers/ssb/main.c @@ -374,7 +374,8 @@ static ssize_t \ attrib##_show(struct device *dev, struct device_attribute *attr, char *buf) \ { \ return sprintf(buf, format_string, dev_to_ssb_dev(dev)->field); \ -} +} \ +static DEVICE_ATTR_RO(attrib); ssb_config_attr(core_num, core_index, "%u\n") ssb_config_attr(coreid, id.coreid, "0x%04x\n") @@ -387,16 +388,18 @@ name_show(struct device *dev, struct device_attribute *attr, char *buf) return sprintf(buf, "%s\n", ssb_core_name(dev_to_ssb_dev(dev)->id.coreid)); } - -static struct device_attribute ssb_device_attrs[] = { - __ATTR_RO(name), - __ATTR_RO(core_num), - __ATTR_RO(coreid), - __ATTR_RO(vendor), - __ATTR_RO(revision), - __ATTR_RO(irq), - __ATTR_NULL, +static DEVICE_ATTR_RO(name); + +static struct attribute *ssb_device_attrs[] = { + &dev_attr_name.attr, + &dev_attr_core_num.attr, + &dev_attr_coreid.attr, + &dev_attr_vendor.attr, + &dev_attr_revision.attr, + &dev_attr_irq.attr, + NULL, }; +ATTRIBUTE_GROUPS(ssb_device); static struct bus_type ssb_bustype = { .name = "ssb", @@ -407,7 +410,7 @@ static struct bus_type ssb_bustype = { .suspend = ssb_device_suspend, .resume = ssb_device_resume, .uevent = ssb_device_uevent, - .dev_attrs = ssb_device_attrs, + .dev_groups = ssb_device_groups, }; static void ssb_buses_lock(void) diff --git a/drivers/staging/bcm/Bcmchar.c b/drivers/staging/bcm/Bcmchar.c index f91bc1fdd895..639ba96adb36 100644 --- a/drivers/staging/bcm/Bcmchar.c +++ b/drivers/staging/bcm/Bcmchar.c @@ -1960,6 +1960,7 @@ cntrlEnd: BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "Called IOCTL_BCM_GET_DEVICE_DRIVER_INFO\n"); + memset(&DevInfo, 0, sizeof(DevInfo)); DevInfo.MaxRDMBufferSize = BUFFER_4K; DevInfo.u32DSDStartOffset = EEPROM_CALPARAM_START; DevInfo.u32RxAlignmentCorrection = 0; diff --git a/drivers/staging/media/msi3101/Kconfig b/drivers/staging/media/msi3101/Kconfig index b94a95a597d6..76d5bbd4d93c 100644 --- a/drivers/staging/media/msi3101/Kconfig +++ b/drivers/staging/media/msi3101/Kconfig @@ -1,3 +1,4 @@ config USB_MSI3101 tristate "Mirics MSi3101 SDR Dongle" depends on USB && VIDEO_DEV && VIDEO_V4L2 + select VIDEOBUF2_VMALLOC diff --git a/drivers/staging/media/msi3101/sdr-msi3101.c b/drivers/staging/media/msi3101/sdr-msi3101.c index 24c7b70a6cbf..4c3bf776bb20 100644 --- a/drivers/staging/media/msi3101/sdr-msi3101.c +++ b/drivers/staging/media/msi3101/sdr-msi3101.c @@ -1131,7 +1131,13 @@ static int msi3101_queue_setup(struct vb2_queue *vq, /* Absolute min and max number of buffers available for mmap() */ *nbuffers = 32; *nplanes = 1; - sizes[0] = PAGE_ALIGN(3 * 3072); /* 3 * 768 * 4 */ + /* + * 3, wMaxPacketSize 3x 1024 bytes + * 504, max IQ sample pairs per 1024 frame + * 2, two samples, I and Q + * 4, 32-bit float + */ + sizes[0] = PAGE_ALIGN(3 * 504 * 2 * 4); /* = 12096 */ dev_dbg(&s->udev->dev, "%s: nbuffers=%d sizes[0]=%d\n", __func__, *nbuffers, sizes[0]); return 0; @@ -1657,7 +1663,7 @@ static int vidioc_s_frequency(struct file *file, void *priv, f->frequency * 625UL / 10UL); } -const struct v4l2_ioctl_ops msi3101_ioctl_ops = { +static const struct v4l2_ioctl_ops msi3101_ioctl_ops = { .vidioc_querycap = msi3101_querycap, .vidioc_enum_input = msi3101_enum_input, diff --git a/drivers/staging/ozwpan/ozcdev.c b/drivers/staging/ozwpan/ozcdev.c index 6ccb64fb0786..6ce0af9977d8 100644 --- a/drivers/staging/ozwpan/ozcdev.c +++ b/drivers/staging/ozwpan/ozcdev.c @@ -155,6 +155,9 @@ static ssize_t oz_cdev_write(struct file *filp, const char __user *buf, struct oz_app_hdr *app_hdr; struct oz_serial_ctx *ctx; + if (count > sizeof(ei->data) - sizeof(*elt) - sizeof(*app_hdr)) + return -EINVAL; + spin_lock_bh(&g_cdev.lock); pd = g_cdev.active_pd; if (pd) diff --git a/drivers/staging/sb105x/sb_pci_mp.c b/drivers/staging/sb105x/sb_pci_mp.c index 23db32f07fd5..a10cdb17038b 100644 --- a/drivers/staging/sb105x/sb_pci_mp.c +++ b/drivers/staging/sb105x/sb_pci_mp.c @@ -1063,7 +1063,7 @@ static int mp_wait_modem_status(struct sb_uart_state *state, unsigned long arg) static int mp_get_count(struct sb_uart_state *state, struct serial_icounter_struct *icnt) { - struct serial_icounter_struct icount; + struct serial_icounter_struct icount = {}; struct sb_uart_icount cnow; struct sb_uart_port *port = state->port; diff --git a/drivers/staging/wlags49_h2/wl_priv.c b/drivers/staging/wlags49_h2/wl_priv.c index c97e0e154d28..7e10dcdc3090 100644 --- a/drivers/staging/wlags49_h2/wl_priv.c +++ b/drivers/staging/wlags49_h2/wl_priv.c @@ -570,6 +570,7 @@ int wvlan_uil_put_info(struct uilreq *urq, struct wl_private *lp) ltv_t *pLtv; bool_t ltvAllocated = FALSE; ENCSTRCT sEncryption; + size_t len; #ifdef USE_WDS hcf_16 hcfPort = HCF_PORT_0; @@ -686,7 +687,8 @@ int wvlan_uil_put_info(struct uilreq *urq, struct wl_private *lp) break; case CFG_CNF_OWN_NAME: memset(lp->StationName, 0, sizeof(lp->StationName)); - memcpy((void *)lp->StationName, (void *)&pLtv->u.u8[2], (size_t)pLtv->u.u16[0]); + len = min_t(size_t, pLtv->u.u16[0], sizeof(lp->StationName)); + strlcpy(lp->StationName, &pLtv->u.u8[2], len); pLtv->u.u16[0] = CNV_INT_TO_LITTLE(pLtv->u.u16[0]); break; case CFG_CNF_LOAD_BALANCING: @@ -1783,6 +1785,7 @@ int wvlan_set_station_nickname(struct net_device *dev, { struct wl_private *lp = wl_priv(dev); unsigned long flags; + size_t len; int ret = 0; /*------------------------------------------------------------------------*/ @@ -1793,8 +1796,8 @@ int wvlan_set_station_nickname(struct net_device *dev, wl_lock(lp, &flags); memset(lp->StationName, 0, sizeof(lp->StationName)); - - memcpy(lp->StationName, extra, wrqu->data.length); + len = min_t(size_t, wrqu->data.length, sizeof(lp->StationName)); + strlcpy(lp->StationName, extra, len); /* Commit the adapter parameters */ wl_apply(lp); diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 551c96ca60ac..0f199f6a0738 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -134,10 +134,10 @@ static int pscsi_pmode_enable_hba(struct se_hba *hba, unsigned long mode_flag) * pSCSI Host ID and enable for phba mode */ sh = scsi_host_lookup(phv->phv_host_id); - if (IS_ERR(sh)) { + if (!sh) { pr_err("pSCSI: Unable to locate SCSI Host for" " phv_host_id: %d\n", phv->phv_host_id); - return PTR_ERR(sh); + return -EINVAL; } phv->phv_lld_host = sh; @@ -515,10 +515,10 @@ static int pscsi_configure_device(struct se_device *dev) sh = phv->phv_lld_host; } else { sh = scsi_host_lookup(pdv->pdv_host_id); - if (IS_ERR(sh)) { + if (!sh) { pr_err("pSCSI: Unable to locate" " pdv_host_id: %d\n", pdv->pdv_host_id); - return PTR_ERR(sh); + return -EINVAL; } } } else { diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index 4714c6f8da4b..d9b92b2c524d 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -263,6 +263,11 @@ sbc_setup_write_same(struct se_cmd *cmd, unsigned char *flags, struct sbc_ops *o sectors, cmd->se_dev->dev_attrib.max_write_same_len); return TCM_INVALID_CDB_FIELD; } + /* We always have ANC_SUP == 0 so setting ANCHOR is always an error */ + if (flags[0] & 0x10) { + pr_warn("WRITE SAME with ANCHOR not supported\n"); + return TCM_INVALID_CDB_FIELD; + } /* * Special case for WRITE_SAME w/ UNMAP=1 that ends up getting * translated into block discard requests within backend code. diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c index 3da4fd10b9f8..474cd44fac14 100644 --- a/drivers/target/target_core_xcopy.c +++ b/drivers/target/target_core_xcopy.c @@ -82,6 +82,9 @@ static int target_xcopy_locate_se_dev_e4(struct se_cmd *se_cmd, struct xcopy_op mutex_lock(&g_device_mutex); list_for_each_entry(se_dev, &g_device_list, g_dev_node) { + if (!se_dev->dev_attrib.emulate_3pc) + continue; + memset(&tmp_dev_wwn[0], 0, XCOPY_NAA_IEEE_REGEX_LEN); target_xcopy_gen_naa_ieee(se_dev, &tmp_dev_wwn[0]); @@ -357,6 +360,7 @@ struct xcopy_pt_cmd { struct se_cmd se_cmd; struct xcopy_op *xcopy_op; struct completion xpt_passthrough_sem; + unsigned char sense_buffer[TRANSPORT_SENSE_BUFFER]; }; static struct se_port xcopy_pt_port; @@ -675,7 +679,8 @@ static int target_xcopy_issue_pt_cmd(struct xcopy_pt_cmd *xpt_cmd) pr_debug("target_xcopy_issue_pt_cmd(): SCSI status: 0x%02x\n", se_cmd->scsi_status); - return 0; + + return (se_cmd->scsi_status) ? -EINVAL : 0; } static int target_xcopy_read_source( @@ -708,7 +713,7 @@ static int target_xcopy_read_source( (unsigned long long)src_lba, src_sectors, length); transport_init_se_cmd(se_cmd, &xcopy_pt_tfo, NULL, length, - DMA_FROM_DEVICE, 0, NULL); + DMA_FROM_DEVICE, 0, &xpt_cmd->sense_buffer[0]); xop->src_pt_cmd = xpt_cmd; rc = target_xcopy_setup_pt_cmd(xpt_cmd, xop, src_dev, &cdb[0], @@ -768,7 +773,7 @@ static int target_xcopy_write_destination( (unsigned long long)dst_lba, dst_sectors, length); transport_init_se_cmd(se_cmd, &xcopy_pt_tfo, NULL, length, - DMA_TO_DEVICE, 0, NULL); + DMA_TO_DEVICE, 0, &xpt_cmd->sense_buffer[0]); xop->dst_pt_cmd = xpt_cmd; rc = target_xcopy_setup_pt_cmd(xpt_cmd, xop, dst_dev, &cdb[0], @@ -884,30 +889,42 @@ out: sense_reason_t target_do_xcopy(struct se_cmd *se_cmd) { + struct se_device *dev = se_cmd->se_dev; struct xcopy_op *xop = NULL; unsigned char *p = NULL, *seg_desc; unsigned int list_id, list_id_usage, sdll, inline_dl, sa; + sense_reason_t ret = TCM_INVALID_PARAMETER_LIST; int rc; unsigned short tdll; + if (!dev->dev_attrib.emulate_3pc) { + pr_err("EXTENDED_COPY operation explicitly disabled\n"); + return TCM_UNSUPPORTED_SCSI_OPCODE; + } + sa = se_cmd->t_task_cdb[1] & 0x1f; if (sa != 0x00) { pr_err("EXTENDED_COPY(LID4) not supported\n"); return TCM_UNSUPPORTED_SCSI_OPCODE; } + xop = kzalloc(sizeof(struct xcopy_op), GFP_KERNEL); + if (!xop) { + pr_err("Unable to allocate xcopy_op\n"); + return TCM_OUT_OF_RESOURCES; + } + xop->xop_se_cmd = se_cmd; + p = transport_kmap_data_sg(se_cmd); if (!p) { pr_err("transport_kmap_data_sg() failed in target_do_xcopy\n"); + kfree(xop); return TCM_OUT_OF_RESOURCES; } list_id = p[0]; - if (list_id != 0x00) { - pr_err("XCOPY with non zero list_id: 0x%02x\n", list_id); - goto out; - } - list_id_usage = (p[1] & 0x18); + list_id_usage = (p[1] & 0x18) >> 3; + /* * Determine TARGET DESCRIPTOR LIST LENGTH + SEGMENT DESCRIPTOR LIST LENGTH */ @@ -920,13 +937,6 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd) goto out; } - xop = kzalloc(sizeof(struct xcopy_op), GFP_KERNEL); - if (!xop) { - pr_err("Unable to allocate xcopy_op\n"); - goto out; - } - xop->xop_se_cmd = se_cmd; - pr_debug("Processing XCOPY with list_id: 0x%02x list_id_usage: 0x%02x" " tdll: %hu sdll: %u inline_dl: %u\n", list_id, list_id_usage, tdll, sdll, inline_dl); @@ -935,6 +945,17 @@ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd) if (rc <= 0) goto out; + if (xop->src_dev->dev_attrib.block_size != + xop->dst_dev->dev_attrib.block_size) { + pr_err("XCOPY: Non matching src_dev block_size: %u + dst_dev" + " block_size: %u currently unsupported\n", + xop->src_dev->dev_attrib.block_size, + xop->dst_dev->dev_attrib.block_size); + xcopy_pt_undepend_remotedev(xop); + ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + goto out; + } + pr_debug("XCOPY: Processed %d target descriptors, length: %u\n", rc, rc * XCOPY_TARGET_DESC_LEN); seg_desc = &p[16]; @@ -957,7 +978,7 @@ out: if (p) transport_kunmap_data_sg(se_cmd); kfree(xop); - return TCM_INVALID_CDB_FIELD; + return ret; } static sense_reason_t target_rcr_operating_parameters(struct se_cmd *se_cmd) diff --git a/drivers/thermal/samsung/exynos_thermal_common.c b/drivers/thermal/samsung/exynos_thermal_common.c index f10a6ad37c06..c2301da08ac7 100644 --- a/drivers/thermal/samsung/exynos_thermal_common.c +++ b/drivers/thermal/samsung/exynos_thermal_common.c @@ -310,8 +310,6 @@ void exynos_report_trigger(struct thermal_sensor_conf *conf) } th_zone = conf->pzone_data; - if (th_zone->therm_dev) - return; if (th_zone->bind == false) { for (i = 0; i < th_zone->cool_dev_size; i++) { diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index b43afda8acd1..32f38b90c4f6 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -317,6 +317,9 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on) con = readl(data->base + reg->tmu_ctrl); + if (pdata->test_mux) + con |= (pdata->test_mux << reg->test_mux_addr_shift); + if (pdata->reference_voltage) { con &= ~(reg->buf_vref_sel_mask << reg->buf_vref_sel_shift); con |= pdata->reference_voltage << reg->buf_vref_sel_shift; @@ -488,7 +491,7 @@ static const struct of_device_id exynos_tmu_match[] = { }, { .compatible = "samsung,exynos4412-tmu", - .data = (void *)EXYNOS5250_TMU_DRV_DATA, + .data = (void *)EXYNOS4412_TMU_DRV_DATA, }, { .compatible = "samsung,exynos5250-tmu", @@ -629,9 +632,10 @@ static int exynos_tmu_probe(struct platform_device *pdev) if (ret) return ret; - if (pdata->type == SOC_ARCH_EXYNOS || - pdata->type == SOC_ARCH_EXYNOS4210 || - pdata->type == SOC_ARCH_EXYNOS5440) + if (pdata->type == SOC_ARCH_EXYNOS4210 || + pdata->type == SOC_ARCH_EXYNOS4412 || + pdata->type == SOC_ARCH_EXYNOS5250 || + pdata->type == SOC_ARCH_EXYNOS5440) data->soc = pdata->type; else { ret = -EINVAL; diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h index b364c9eee701..3fb65547e64c 100644 --- a/drivers/thermal/samsung/exynos_tmu.h +++ b/drivers/thermal/samsung/exynos_tmu.h @@ -41,7 +41,8 @@ enum calibration_mode { enum soc_type { SOC_ARCH_EXYNOS4210 = 1, - SOC_ARCH_EXYNOS, + SOC_ARCH_EXYNOS4412, + SOC_ARCH_EXYNOS5250, SOC_ARCH_EXYNOS5440, }; @@ -84,6 +85,7 @@ enum soc_type { * @triminfo_reload_shift: shift of triminfo reload enable bit in triminfo_ctrl reg. * @tmu_ctrl: TMU main controller register. + * @test_mux_addr_shift: shift bits of test mux address. * @buf_vref_sel_shift: shift bits of reference voltage in tmu_ctrl register. * @buf_vref_sel_mask: mask bits of reference voltage in tmu_ctrl register. * @therm_trip_mode_shift: shift bits of tripping mode in tmu_ctrl register. @@ -150,6 +152,7 @@ struct exynos_tmu_registers { u32 triminfo_reload_shift; u32 tmu_ctrl; + u32 test_mux_addr_shift; u32 buf_vref_sel_shift; u32 buf_vref_sel_mask; u32 therm_trip_mode_shift; @@ -257,6 +260,7 @@ struct exynos_tmu_registers { * @first_point_trim: temp value of the first point trimming * @second_point_trim: temp value of the second point trimming * @default_temp_offset: default temperature offset in case of no trimming + * @test_mux; information if SoC supports test MUX * @cal_type: calibration type for temperature * @cal_mode: calibration mode for temperature * @freq_clip_table: Table representing frequency reduction percentage. @@ -286,6 +290,7 @@ struct exynos_tmu_platform_data { u8 first_point_trim; u8 second_point_trim; u8 default_temp_offset; + u8 test_mux; enum calibration_type cal_type; enum calibration_mode cal_mode; diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c index 9002499c1f69..073c292baa53 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.c +++ b/drivers/thermal/samsung/exynos_tmu_data.c @@ -90,14 +90,15 @@ struct exynos_tmu_init_data const exynos4210_default_tmu_data = { }; #endif -#if defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4412) -static const struct exynos_tmu_registers exynos5250_tmu_registers = { +#if defined(CONFIG_SOC_EXYNOS4412) || defined(CONFIG_SOC_EXYNOS5250) +static const struct exynos_tmu_registers exynos4412_tmu_registers = { .triminfo_data = EXYNOS_TMU_REG_TRIMINFO, .triminfo_25_shift = EXYNOS_TRIMINFO_25_SHIFT, .triminfo_85_shift = EXYNOS_TRIMINFO_85_SHIFT, .triminfo_ctrl = EXYNOS_TMU_TRIMINFO_CON, .triminfo_reload_shift = EXYNOS_TRIMINFO_RELOAD_SHIFT, .tmu_ctrl = EXYNOS_TMU_REG_CONTROL, + .test_mux_addr_shift = EXYNOS4412_MUX_ADDR_SHIFT, .buf_vref_sel_shift = EXYNOS_TMU_REF_VOLTAGE_SHIFT, .buf_vref_sel_mask = EXYNOS_TMU_REF_VOLTAGE_MASK, .therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT, @@ -128,7 +129,7 @@ static const struct exynos_tmu_registers exynos5250_tmu_registers = { .emul_time_mask = EXYNOS_EMUL_TIME_MASK, }; -#define EXYNOS5250_TMU_DATA \ +#define EXYNOS4412_TMU_DATA \ .threshold_falling = 10, \ .trigger_levels[0] = 85, \ .trigger_levels[1] = 103, \ @@ -162,15 +163,32 @@ static const struct exynos_tmu_registers exynos5250_tmu_registers = { .temp_level = 103, \ }, \ .freq_tab_count = 2, \ - .type = SOC_ARCH_EXYNOS, \ - .registers = &exynos5250_tmu_registers, \ + .registers = &exynos4412_tmu_registers, \ .features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \ TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \ TMU_SUPPORT_EMUL_TIME) +#endif +#if defined(CONFIG_SOC_EXYNOS4412) +struct exynos_tmu_init_data const exynos4412_default_tmu_data = { + .tmu_data = { + { + EXYNOS4412_TMU_DATA, + .type = SOC_ARCH_EXYNOS4412, + .test_mux = EXYNOS4412_MUX_ADDR_VALUE, + }, + }, + .tmu_count = 1, +}; +#endif + +#if defined(CONFIG_SOC_EXYNOS5250) struct exynos_tmu_init_data const exynos5250_default_tmu_data = { .tmu_data = { - { EXYNOS5250_TMU_DATA }, + { + EXYNOS4412_TMU_DATA, + .type = SOC_ARCH_EXYNOS5250, + }, }, .tmu_count = 1, }; diff --git a/drivers/thermal/samsung/exynos_tmu_data.h b/drivers/thermal/samsung/exynos_tmu_data.h index dc7feb51099b..a1ea19d9e0a6 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.h +++ b/drivers/thermal/samsung/exynos_tmu_data.h @@ -95,6 +95,10 @@ #define EXYNOS_MAX_TRIGGER_PER_REG 4 +/* Exynos4412 specific */ +#define EXYNOS4412_MUX_ADDR_VALUE 6 +#define EXYNOS4412_MUX_ADDR_SHIFT 20 + /*exynos5440 specific registers*/ #define EXYNOS5440_TMU_S0_7_TRIM 0x000 #define EXYNOS5440_TMU_S0_7_CTRL 0x020 @@ -138,7 +142,14 @@ extern struct exynos_tmu_init_data const exynos4210_default_tmu_data; #define EXYNOS4210_TMU_DRV_DATA (NULL) #endif -#if (defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4412)) +#if defined(CONFIG_SOC_EXYNOS4412) +extern struct exynos_tmu_init_data const exynos4412_default_tmu_data; +#define EXYNOS4412_TMU_DRV_DATA (&exynos4412_default_tmu_data) +#else +#define EXYNOS4412_TMU_DRV_DATA (NULL) +#endif + +#if defined(CONFIG_SOC_EXYNOS5250) extern struct exynos_tmu_init_data const exynos5250_default_tmu_data; #define EXYNOS5250_TMU_DRV_DATA (&exynos5250_default_tmu_data) #else diff --git a/drivers/thermal/thermal_hwmon.c b/drivers/thermal/thermal_hwmon.c index eeef0e2498ca..fdb07199d9c2 100644 --- a/drivers/thermal/thermal_hwmon.c +++ b/drivers/thermal/thermal_hwmon.c @@ -159,7 +159,7 @@ int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz) INIT_LIST_HEAD(&hwmon->tz_list); strlcpy(hwmon->type, tz->type, THERMAL_NAME_LENGTH); - hwmon->device = hwmon_device_register(&tz->device); + hwmon->device = hwmon_device_register(NULL); if (IS_ERR(hwmon->device)) { result = PTR_ERR(hwmon->device); goto free_mem; diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c index 4f8b9af54a5a..5a47cc8c8f85 100644 --- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c +++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c @@ -110,6 +110,7 @@ static inline int ti_thermal_get_temp(struct thermal_zone_device *thermal, } else { dev_err(bgp->dev, "Failed to read PCB state. Using defaults\n"); + ret = 0; } } *temp = ti_thermal_hotspot_temperature(tmp, slope, constant); diff --git a/drivers/thermal/x86_pkg_temp_thermal.c b/drivers/thermal/x86_pkg_temp_thermal.c index f36950e4134f..7722cb9d5a80 100644 --- a/drivers/thermal/x86_pkg_temp_thermal.c +++ b/drivers/thermal/x86_pkg_temp_thermal.c @@ -316,18 +316,19 @@ static void pkg_temp_thermal_threshold_work_fn(struct work_struct *work) int phy_id = topology_physical_package_id(cpu); struct phy_dev_entry *phdev = pkg_temp_thermal_get_phy_entry(cpu); bool notify = false; + unsigned long flags; if (!phdev) return; - spin_lock(&pkg_work_lock); + spin_lock_irqsave(&pkg_work_lock, flags); ++pkg_work_cnt; if (unlikely(phy_id > max_phy_id)) { - spin_unlock(&pkg_work_lock); + spin_unlock_irqrestore(&pkg_work_lock, flags); return; } pkg_work_scheduled[phy_id] = 0; - spin_unlock(&pkg_work_lock); + spin_unlock_irqrestore(&pkg_work_lock, flags); enable_pkg_thres_interrupt(); rdmsrl(MSR_IA32_PACKAGE_THERM_STATUS, msr_val); @@ -397,6 +398,7 @@ static int pkg_temp_thermal_device_add(unsigned int cpu) int thres_count; u32 eax, ebx, ecx, edx; u8 *temp; + unsigned long flags; cpuid(6, &eax, &ebx, &ecx, &edx); thres_count = ebx & 0x07; @@ -420,19 +422,19 @@ static int pkg_temp_thermal_device_add(unsigned int cpu) goto err_ret_unlock; } - spin_lock(&pkg_work_lock); + spin_lock_irqsave(&pkg_work_lock, flags); if (topology_physical_package_id(cpu) > max_phy_id) max_phy_id = topology_physical_package_id(cpu); temp = krealloc(pkg_work_scheduled, (max_phy_id+1) * sizeof(u8), GFP_ATOMIC); if (!temp) { - spin_unlock(&pkg_work_lock); + spin_unlock_irqrestore(&pkg_work_lock, flags); err = -ENOMEM; goto err_ret_free; } pkg_work_scheduled = temp; pkg_work_scheduled[topology_physical_package_id(cpu)] = 0; - spin_unlock(&pkg_work_lock); + spin_unlock_irqrestore(&pkg_work_lock, flags); phy_dev_entry->phys_proc_id = topology_physical_package_id(cpu); phy_dev_entry->first_cpu = cpu; diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index bb84f8d4c54e..b2cfdb661947 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1896,10 +1896,6 @@ static int serial_imx_probe_dt(struct imx_port *sport, sport->devdata = of_id->data; - if (of_device_is_stdout_path(np)) - add_preferred_console(imx_reg.cons->name, sport->port.line, - NULL); - return 0; } #else diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c index 93b697a0de65..15ad6fcda88b 100644 --- a/drivers/tty/serial/vt8500_serial.c +++ b/drivers/tty/serial/vt8500_serial.c @@ -561,12 +561,13 @@ static int vt8500_serial_probe(struct platform_device *pdev) if (!mmres || !irqres) return -ENODEV; - if (np) + if (np) { port = of_alias_get_id(np, "serial"); if (port >= VT8500_MAX_PORTS) port = -1; - else + } else { port = -1; + } if (port < 0) { /* calculate the port id */ diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c index ba475632c5fa..67beb8444930 100644 --- a/drivers/uio/uio.c +++ b/drivers/uio/uio.c @@ -288,13 +288,13 @@ static int uio_dev_add_attributes(struct uio_device *idev) } map = kzalloc(sizeof(*map), GFP_KERNEL); if (!map) - goto err_map; + goto err_map_kobj; kobject_init(&map->kobj, &map_attr_type); map->mem = mem; mem->map = map; ret = kobject_add(&map->kobj, idev->map_dir, "map%d", mi); if (ret) - goto err_map; + goto err_map_kobj; ret = kobject_uevent(&map->kobj, KOBJ_ADD); if (ret) goto err_map; @@ -313,14 +313,14 @@ static int uio_dev_add_attributes(struct uio_device *idev) } portio = kzalloc(sizeof(*portio), GFP_KERNEL); if (!portio) - goto err_portio; + goto err_portio_kobj; kobject_init(&portio->kobj, &portio_attr_type); portio->port = port; port->portio = portio; ret = kobject_add(&portio->kobj, idev->portio_dir, "port%d", pi); if (ret) - goto err_portio; + goto err_portio_kobj; ret = kobject_uevent(&portio->kobj, KOBJ_ADD); if (ret) goto err_portio; @@ -329,14 +329,18 @@ static int uio_dev_add_attributes(struct uio_device *idev) return 0; err_portio: - for (pi--; pi >= 0; pi--) { + pi--; +err_portio_kobj: + for (; pi >= 0; pi--) { port = &idev->info->port[pi]; portio = port->portio; kobject_put(&portio->kobj); } kobject_put(idev->portio_dir); err_map: - for (mi--; mi>=0; mi--) { + mi--; +err_map_kobj: + for (; mi >= 0; mi--) { mem = &idev->info->mem[mi]; map = mem->map; kobject_put(&map->kobj); @@ -601,6 +605,7 @@ static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf) struct uio_device *idev = vma->vm_private_data; struct page *page; unsigned long offset; + void *addr; int mi = uio_find_mem_index(vma); if (mi < 0) @@ -612,10 +617,11 @@ static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf) */ offset = (vmf->pgoff - mi) << PAGE_SHIFT; + addr = (void *)(unsigned long)idev->info->mem[mi].addr + offset; if (idev->info->mem[mi].memtype == UIO_MEM_LOGICAL) - page = virt_to_page(idev->info->mem[mi].addr + offset); + page = virt_to_page(addr); else - page = vmalloc_to_page((void *)(unsigned long)idev->info->mem[mi].addr + offset); + page = vmalloc_to_page(addr); get_page(page); vmf->page = page; return 0; @@ -642,16 +648,29 @@ static int uio_mmap_physical(struct vm_area_struct *vma) { struct uio_device *idev = vma->vm_private_data; int mi = uio_find_mem_index(vma); + struct uio_mem *mem; if (mi < 0) return -EINVAL; + mem = idev->info->mem + mi; - vma->vm_ops = &uio_physical_vm_ops; + if (vma->vm_end - vma->vm_start > mem->size) + return -EINVAL; + vma->vm_ops = &uio_physical_vm_ops; vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + /* + * We cannot use the vm_iomap_memory() helper here, + * because vma->vm_pgoff is the map index we looked + * up above in uio_find_mem_index(), rather than an + * actual page offset into the mmap. + * + * So we just do the physical mmap without a page + * offset. + */ return remap_pfn_range(vma, vma->vm_start, - idev->info->mem[mi].addr >> PAGE_SHIFT, + mem->addr >> PAGE_SHIFT, vma->vm_end - vma->vm_start, vma->vm_page_prot); } @@ -796,10 +815,9 @@ int __uio_register_device(struct module *owner, info->uio_dev = NULL; - idev = kzalloc(sizeof(*idev), GFP_KERNEL); + idev = devm_kzalloc(parent, sizeof(*idev), GFP_KERNEL); if (!idev) { - ret = -ENOMEM; - goto err_kzalloc; + return -ENOMEM; } idev->owner = owner; @@ -809,7 +827,7 @@ int __uio_register_device(struct module *owner, ret = uio_get_minor(idev); if (ret) - goto err_get_minor; + return ret; idev->dev = device_create(&uio_class, parent, MKDEV(uio_major, idev->minor), idev, @@ -827,7 +845,7 @@ int __uio_register_device(struct module *owner, info->uio_dev = idev; if (info->irq && (info->irq != UIO_IRQ_CUSTOM)) { - ret = request_irq(info->irq, uio_interrupt, + ret = devm_request_irq(parent, info->irq, uio_interrupt, info->irq_flags, info->name, idev); if (ret) goto err_request_irq; @@ -841,9 +859,6 @@ err_uio_dev_add_attributes: device_destroy(&uio_class, MKDEV(uio_major, idev->minor)); err_device_create: uio_free_minor(idev); -err_get_minor: - kfree(idev); -err_kzalloc: return ret; } EXPORT_SYMBOL_GPL(__uio_register_device); @@ -864,13 +879,9 @@ void uio_unregister_device(struct uio_info *info) uio_free_minor(idev); - if (info->irq && (info->irq != UIO_IRQ_CUSTOM)) - free_irq(info->irq, idev); - uio_dev_del_attributes(idev); device_destroy(&uio_class, MKDEV(uio_major, idev->minor)); - kfree(idev); return; } diff --git a/drivers/uio/uio_aec.c b/drivers/uio/uio_aec.c index f3611c2d83b6..1549fab633c6 100644 --- a/drivers/uio/uio_aec.c +++ b/drivers/uio/uio_aec.c @@ -147,7 +147,6 @@ static void remove(struct pci_dev *pdev) uio_unregister_device(info); pci_release_regions(pdev); pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); iounmap(info->priv); kfree(info); diff --git a/drivers/uio/uio_cif.c b/drivers/uio/uio_cif.c index 22cdf385ab33..30f533ce3758 100644 --- a/drivers/uio/uio_cif.c +++ b/drivers/uio/uio_cif.c @@ -106,7 +106,6 @@ static void hilscher_pci_remove(struct pci_dev *dev) uio_unregister_device(info); pci_release_regions(dev); pci_disable_device(dev); - pci_set_drvdata(dev, NULL); iounmap(info->mem[0].internal_addr); kfree (info); diff --git a/drivers/uio/uio_mf624.c b/drivers/uio/uio_mf624.c index a1768b2f4493..f764adbfe036 100644 --- a/drivers/uio/uio_mf624.c +++ b/drivers/uio/uio_mf624.c @@ -42,7 +42,7 @@ enum mf624_interrupt_source {ADC, CTR4, ALL}; -void mf624_disable_interrupt(enum mf624_interrupt_source source, +static void mf624_disable_interrupt(enum mf624_interrupt_source source, struct uio_info *info) { void __iomem *INTCSR_reg = info->mem[0].internal_addr + INTCSR; @@ -70,7 +70,7 @@ void mf624_disable_interrupt(enum mf624_interrupt_source source, } } -void mf624_enable_interrupt(enum mf624_interrupt_source source, +static void mf624_enable_interrupt(enum mf624_interrupt_source source, struct uio_info *info) { void __iomem *INTCSR_reg = info->mem[0].internal_addr + INTCSR; @@ -220,7 +220,6 @@ static void mf624_pci_remove(struct pci_dev *dev) uio_unregister_device(info); pci_release_regions(dev); pci_disable_device(dev); - pci_set_drvdata(dev, NULL); iounmap(info->mem[0].internal_addr); iounmap(info->mem[1].internal_addr); diff --git a/drivers/uio/uio_netx.c b/drivers/uio/uio_netx.c index 28a766b9e198..4c345db8b016 100644 --- a/drivers/uio/uio_netx.c +++ b/drivers/uio/uio_netx.c @@ -127,7 +127,6 @@ static void netx_pci_remove(struct pci_dev *dev) uio_unregister_device(info); pci_release_regions(dev); pci_disable_device(dev); - pci_set_drvdata(dev, NULL); iounmap(info->mem[0].internal_addr); kfree(info); diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c index 90ff17a0202f..76669313e9a7 100644 --- a/drivers/uio/uio_pdrv_genirq.c +++ b/drivers/uio/uio_pdrv_genirq.c @@ -112,11 +112,11 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev) if (pdev->dev.of_node) { /* alloc uioinfo for one device */ - uioinfo = kzalloc(sizeof(*uioinfo), GFP_KERNEL); + uioinfo = devm_kzalloc(&pdev->dev, sizeof(*uioinfo), + GFP_KERNEL); if (!uioinfo) { - ret = -ENOMEM; dev_err(&pdev->dev, "unable to kmalloc\n"); - return ret; + return -ENOMEM; } uioinfo->name = pdev->dev.of_node->name; uioinfo->version = "devicetree"; @@ -125,20 +125,19 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev) if (!uioinfo || !uioinfo->name || !uioinfo->version) { dev_err(&pdev->dev, "missing platform_data\n"); - goto bad0; + return ret; } if (uioinfo->handler || uioinfo->irqcontrol || uioinfo->irq_flags & IRQF_SHARED) { dev_err(&pdev->dev, "interrupt configuration error\n"); - goto bad0; + return ret; } - priv = kzalloc(sizeof(*priv), GFP_KERNEL); + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) { - ret = -ENOMEM; dev_err(&pdev->dev, "unable to kmalloc\n"); - goto bad0; + return -ENOMEM; } priv->uioinfo = uioinfo; @@ -153,7 +152,7 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev) uioinfo->irq = UIO_IRQ_NONE; else if (ret < 0) { dev_err(&pdev->dev, "failed to get IRQ\n"); - goto bad1; + return ret; } } @@ -209,20 +208,12 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev) ret = uio_register_device(&pdev->dev, priv->uioinfo); if (ret) { dev_err(&pdev->dev, "unable to register uio device\n"); - goto bad2; + pm_runtime_disable(&pdev->dev); + return ret; } platform_set_drvdata(pdev, priv); return 0; - bad2: - pm_runtime_disable(&pdev->dev); - bad1: - kfree(priv); - bad0: - /* kfree uioinfo for OF */ - if (pdev->dev.of_node) - kfree(uioinfo); - return ret; } static int uio_pdrv_genirq_remove(struct platform_device *pdev) @@ -235,11 +226,6 @@ static int uio_pdrv_genirq_remove(struct platform_device *pdev) priv->uioinfo->handler = NULL; priv->uioinfo->irqcontrol = NULL; - /* kfree uioinfo for OF */ - if (pdev->dev.of_node) - kfree(priv->uioinfo); - - kfree(priv); return 0; } diff --git a/drivers/uio/uio_sercos3.c b/drivers/uio/uio_sercos3.c index 541983217085..9cfdfcafa262 100644 --- a/drivers/uio/uio_sercos3.c +++ b/drivers/uio/uio_sercos3.c @@ -188,7 +188,6 @@ static void sercos3_pci_remove(struct pci_dev *dev) uio_unregister_device(info); pci_release_regions(dev); pci_disable_device(dev); - pci_set_drvdata(dev, NULL); for (i = 0; i < 5; i++) { if (info->mem[i].internal_addr) iounmap(info->mem[i].internal_addr); diff --git a/drivers/usb/atm/usbatm.h b/drivers/usb/atm/usbatm.h index 5651231a7437..f3eecd967a8a 100644 --- a/drivers/usb/atm/usbatm.h +++ b/drivers/usb/atm/usbatm.h @@ -34,6 +34,7 @@ #include <linux/stringify.h> #include <linux/usb.h> #include <linux/mutex.h> +#include <linux/ratelimit.h> /* #define VERBOSE_DEBUG @@ -59,13 +60,12 @@ atm_printk(KERN_INFO, instance , format , ## arg) #define atm_warn(instance, format, arg...) \ atm_printk(KERN_WARNING, instance , format , ## arg) -#define atm_dbg(instance, format, arg...) \ - dynamic_pr_debug("ATM dev %d: " format , \ - (instance)->atm_dev->number , ## arg) -#define atm_rldbg(instance, format, arg...) \ - if (printk_ratelimit()) \ - atm_dbg(instance , format , ## arg) - +#define atm_dbg(instance, format, ...) \ + pr_debug("ATM dev %d: " format, \ + (instance)->atm_dev->number, ##__VA_ARGS__) +#define atm_rldbg(instance, format, ...) \ + pr_debug_ratelimited("ATM dev %d: " format, \ + (instance)->atm_dev->number, ##__VA_ARGS__) /* flags, set by mini-driver in bind() */ diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h index 464584c6ccae..a85713165688 100644 --- a/drivers/usb/chipidea/bits.h +++ b/drivers/usb/chipidea/bits.h @@ -48,6 +48,7 @@ #define PORTSC_SUSP BIT(7) #define PORTSC_HSP BIT(9) #define PORTSC_PTC (0x0FUL << 16) +#define PORTSC_PHCD(d) ((d) ? BIT(22) : BIT(23)) /* PTS and PTW for non lpm version only */ #define PORTSC_PTS(d) \ (u32)((((d) & 0x3) << 30) | (((d) & 0x4) ? BIT(25) : 0)) diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index be822a2c1776..023d3cb6aa0a 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -108,14 +108,8 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) } data->phy = devm_usb_get_phy_by_phandle(&pdev->dev, "fsl,usbphy", 0); - if (!IS_ERR(data->phy)) { - ret = usb_phy_init(data->phy); - if (ret) { - dev_err(&pdev->dev, "unable to init phy: %d\n", ret); - goto err_clk; - } - } else if (PTR_ERR(data->phy) == -EPROBE_DEFER) { - ret = -EPROBE_DEFER; + if (IS_ERR(data->phy)) { + ret = PTR_ERR(data->phy); goto err_clk; } @@ -131,7 +125,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "usbmisc init failed, ret=%d\n", ret); - goto err_phy; + goto err_clk; } } @@ -143,7 +137,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Can't register ci_hdrc platform device, err=%d\n", ret); - goto err_phy; + goto err_clk; } if (data->usbmisc_data) { @@ -164,9 +158,6 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) disable_device: ci_hdrc_remove_device(data->ci_pdev); -err_phy: - if (data->phy) - usb_phy_shutdown(data->phy); err_clk: clk_disable_unprepare(data->clk); return ret; @@ -178,10 +169,6 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); ci_hdrc_remove_device(data->ci_pdev); - - if (data->phy) - usb_phy_shutdown(data->phy); - clk_disable_unprepare(data->clk); return 0; diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 23763dcec069..5d8981c5235e 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -172,6 +172,27 @@ u8 hw_port_test_get(struct ci_hdrc *ci) return hw_read(ci, OP_PORTSC, PORTSC_PTC) >> __ffs(PORTSC_PTC); } +/* The PHY enters/leaves low power mode */ +static void ci_hdrc_enter_lpm(struct ci_hdrc *ci, bool enable) +{ + enum ci_hw_regs reg = ci->hw_bank.lpm ? OP_DEVLC : OP_PORTSC; + bool lpm = !!(hw_read(ci, reg, PORTSC_PHCD(ci->hw_bank.lpm))); + + if (enable && !lpm) { + hw_write(ci, reg, PORTSC_PHCD(ci->hw_bank.lpm), + PORTSC_PHCD(ci->hw_bank.lpm)); + } else if (!enable && lpm) { + hw_write(ci, reg, PORTSC_PHCD(ci->hw_bank.lpm), + 0); + /* + * The controller needs at least 1ms to reflect + * PHY's status, the PHY also needs some time (less + * than 1ms) to leave low power mode. + */ + usleep_range(1500, 2000); + } +} + static int hw_device_init(struct ci_hdrc *ci, void __iomem *base) { u32 reg; @@ -199,6 +220,8 @@ static int hw_device_init(struct ci_hdrc *ci, void __iomem *base) if (ci->hw_ep_max > ENDPT_MAX) return -ENODEV; + ci_hdrc_enter_lpm(ci, false); + /* Disable all interrupts bits */ hw_write(ci, OP_USBINTR, 0xffffffff, 0); @@ -369,16 +392,28 @@ static irqreturn_t ci_irq(int irq, void *data) static int ci_get_platdata(struct device *dev, struct ci_hdrc_platform_data *platdata) { - /* Get the vbus regulator */ - platdata->reg_vbus = devm_regulator_get(dev, "vbus"); - if (PTR_ERR(platdata->reg_vbus) == -EPROBE_DEFER) { - return -EPROBE_DEFER; - } else if (PTR_ERR(platdata->reg_vbus) == -ENODEV) { - platdata->reg_vbus = NULL; /* no vbus regualator is needed */ - } else if (IS_ERR(platdata->reg_vbus)) { - dev_err(dev, "Getting regulator error: %ld\n", - PTR_ERR(platdata->reg_vbus)); - return PTR_ERR(platdata->reg_vbus); + if (!platdata->phy_mode) + platdata->phy_mode = of_usb_get_phy_mode(dev->of_node); + + if (!platdata->dr_mode) + platdata->dr_mode = of_usb_get_dr_mode(dev->of_node); + + if (platdata->dr_mode == USB_DR_MODE_UNKNOWN) + platdata->dr_mode = USB_DR_MODE_OTG; + + if (platdata->dr_mode != USB_DR_MODE_PERIPHERAL) { + /* Get the vbus regulator */ + platdata->reg_vbus = devm_regulator_get(dev, "vbus"); + if (PTR_ERR(platdata->reg_vbus) == -EPROBE_DEFER) { + return -EPROBE_DEFER; + } else if (PTR_ERR(platdata->reg_vbus) == -ENODEV) { + /* no vbus regualator is needed */ + platdata->reg_vbus = NULL; + } else if (IS_ERR(platdata->reg_vbus)) { + dev_err(dev, "Getting regulator error: %ld\n", + PTR_ERR(platdata->reg_vbus)); + return PTR_ERR(platdata->reg_vbus); + } } return 0; @@ -465,6 +500,33 @@ static void ci_get_otg_capable(struct ci_hdrc *ci) } } +static int ci_usb_phy_init(struct ci_hdrc *ci) +{ + if (ci->platdata->phy) { + ci->transceiver = ci->platdata->phy; + return usb_phy_init(ci->transceiver); + } else { + ci->global_phy = true; + ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2); + if (IS_ERR(ci->transceiver)) + ci->transceiver = NULL; + + return 0; + } +} + +static void ci_usb_phy_destroy(struct ci_hdrc *ci) +{ + if (!ci->transceiver) + return; + + otg_set_peripheral(ci->transceiver->otg, NULL); + if (ci->global_phy) + usb_put_phy(ci->transceiver); + else + usb_phy_shutdown(ci->transceiver); +} + static int ci_hdrc_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -473,7 +535,6 @@ static int ci_hdrc_probe(struct platform_device *pdev) void __iomem *base; int ret; enum usb_dr_mode dr_mode; - struct device_node *of_node = dev->of_node ?: dev->parent->of_node; if (!dev->platform_data) { dev_err(dev, "platform data missing\n"); @@ -493,10 +554,6 @@ static int ci_hdrc_probe(struct platform_device *pdev) ci->dev = dev; ci->platdata = dev->platform_data; - if (ci->platdata->phy) - ci->transceiver = ci->platdata->phy; - else - ci->global_phy = true; ret = hw_device_init(ci, base); if (ret < 0) { @@ -504,27 +561,25 @@ static int ci_hdrc_probe(struct platform_device *pdev) return -ENODEV; } + ret = ci_usb_phy_init(ci); + if (ret) { + dev_err(dev, "unable to init phy: %d\n", ret); + return ret; + } + ci->hw_bank.phys = res->start; ci->irq = platform_get_irq(pdev, 0); if (ci->irq < 0) { dev_err(dev, "missing IRQ\n"); - return -ENODEV; + ret = -ENODEV; + goto destroy_phy; } ci_get_otg_capable(ci); - if (!ci->platdata->phy_mode) - ci->platdata->phy_mode = of_usb_get_phy_mode(of_node); - hw_phymode_configure(ci); - if (!ci->platdata->dr_mode) - ci->platdata->dr_mode = of_usb_get_dr_mode(of_node); - - if (ci->platdata->dr_mode == USB_DR_MODE_UNKNOWN) - ci->platdata->dr_mode = USB_DR_MODE_OTG; - dr_mode = ci->platdata->dr_mode; /* initialize role(s) before the interrupt is requested */ if (dr_mode == USB_DR_MODE_OTG || dr_mode == USB_DR_MODE_HOST) { @@ -537,11 +592,23 @@ static int ci_hdrc_probe(struct platform_device *pdev) ret = ci_hdrc_gadget_init(ci); if (ret) dev_info(dev, "doesn't support gadget\n"); + if (!ret && ci->transceiver) { + ret = otg_set_peripheral(ci->transceiver->otg, + &ci->gadget); + /* + * If we implement all USB functions using chipidea drivers, + * it doesn't need to call above API, meanwhile, if we only + * use gadget function, calling above API is useless. + */ + if (ret && ret != -ENOTSUPP) + goto destroy_phy; + } } if (!ci->roles[CI_ROLE_HOST] && !ci->roles[CI_ROLE_GADGET]) { dev_err(dev, "no supported roles\n"); - return -ENODEV; + ret = -ENODEV; + goto destroy_phy; } if (ci->is_otg) { @@ -594,6 +661,8 @@ static int ci_hdrc_probe(struct platform_device *pdev) free_irq(ci->irq, ci); stop: ci_role_destroy(ci); +destroy_phy: + ci_usb_phy_destroy(ci); return ret; } @@ -605,6 +674,8 @@ static int ci_hdrc_remove(struct platform_device *pdev) dbg_remove_files(ci); free_irq(ci->irq, ci); ci_role_destroy(ci); + ci_hdrc_enter_lpm(ci, true); + ci_usb_phy_destroy(ci); kfree(ci->hw_bank.regmap); return 0; diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index 6f96795dd20c..59e6020ea753 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -100,16 +100,18 @@ static void host_stop(struct ci_hdrc *ci) { struct usb_hcd *hcd = ci->hcd; - usb_remove_hcd(hcd); - usb_put_hcd(hcd); - if (ci->platdata->reg_vbus) - regulator_disable(ci->platdata->reg_vbus); + if (hcd) { + usb_remove_hcd(hcd); + usb_put_hcd(hcd); + if (ci->platdata->reg_vbus) + regulator_disable(ci->platdata->reg_vbus); + } } void ci_hdrc_host_destroy(struct ci_hdrc *ci) { - if (ci->role == CI_ROLE_HOST) + if (ci->role == CI_ROLE_HOST && ci->hcd) host_stop(ci); } diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 9333083dd111..b34c81969cba 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -20,7 +20,6 @@ #include <linux/pm_runtime.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> -#include <linux/usb/otg.h> #include <linux/usb/chipidea.h> #include "ci.h" @@ -686,9 +685,6 @@ static int _gadget_stop_activity(struct usb_gadget *gadget) usb_ep_fifo_flush(&ci->ep0out->ep); usb_ep_fifo_flush(&ci->ep0in->ep); - if (ci->driver) - ci->driver->disconnect(gadget); - /* make sure to disable all endpoints */ gadget_for_each_ep(ep, gadget) { usb_ep_disable(ep); @@ -718,6 +714,11 @@ __acquires(ci->lock) int retval; spin_unlock(&ci->lock); + if (ci->gadget.speed != USB_SPEED_UNKNOWN) { + if (ci->driver) + ci->driver->disconnect(&ci->gadget); + } + retval = _gadget_stop_activity(&ci->gadget); if (retval) goto done; @@ -1461,6 +1462,8 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active) hw_device_state(ci, ci->ep0out->qh.dma); dev_dbg(ci->dev, "Connected to host\n"); } else { + if (ci->driver) + ci->driver->disconnect(&ci->gadget); hw_device_state(ci, 0); if (ci->platdata->notify_event) ci->platdata->notify_event(ci, @@ -1633,23 +1636,22 @@ static int ci_udc_start(struct usb_gadget *gadget, retval = usb_ep_enable(&ci->ep0in->ep); if (retval) return retval; - spin_lock_irqsave(&ci->lock, flags); ci->driver = driver; pm_runtime_get_sync(&ci->gadget.dev); if (ci->vbus_active) { + spin_lock_irqsave(&ci->lock, flags); hw_device_reset(ci, USBMODE_CM_DC); } else { pm_runtime_put_sync(&ci->gadget.dev); - goto done; + return retval; } retval = hw_device_state(ci, ci->ep0out->qh.dma); + spin_unlock_irqrestore(&ci->lock, flags); if (retval) pm_runtime_put_sync(&ci->gadget.dev); - done: - spin_unlock_irqrestore(&ci->lock, flags); return retval; } @@ -1786,34 +1788,9 @@ static int udc_start(struct ci_hdrc *ci) ci->gadget.ep0 = &ci->ep0in->ep; - if (ci->global_phy) { - ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2); - if (IS_ERR(ci->transceiver)) - ci->transceiver = NULL; - } - - if (ci->platdata->flags & CI_HDRC_REQUIRE_TRANSCEIVER) { - if (ci->transceiver == NULL) { - retval = -ENODEV; - goto destroy_eps; - } - } - - if (ci->transceiver) { - retval = otg_set_peripheral(ci->transceiver->otg, - &ci->gadget); - /* - * If we implement all USB functions using chipidea drivers, - * it doesn't need to call above API, meanwhile, if we only - * use gadget function, calling above API is useless. - */ - if (retval && retval != -ENOTSUPP) - goto put_transceiver; - } - retval = usb_add_gadget_udc(dev, &ci->gadget); if (retval) - goto remove_trans; + goto destroy_eps; pm_runtime_no_callbacks(&ci->gadget.dev); pm_runtime_enable(&ci->gadget.dev); @@ -1823,17 +1800,6 @@ static int udc_start(struct ci_hdrc *ci) return retval; -remove_trans: - if (ci->transceiver) { - otg_set_peripheral(ci->transceiver->otg, NULL); - if (ci->global_phy) - usb_put_phy(ci->transceiver); - } - - dev_err(dev, "error = %i\n", retval); -put_transceiver: - if (ci->transceiver && ci->global_phy) - usb_put_phy(ci->transceiver); destroy_eps: destroy_eps(ci); free_pools: diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index d3318a0df8ee..4d387596f3f0 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -101,6 +101,7 @@ struct wdm_device { struct work_struct rxwork; int werr; int rerr; + int resp_count; struct list_head device_list; int (*manage_power)(struct usb_interface *, int); @@ -253,6 +254,10 @@ static void wdm_int_callback(struct urb *urb) "NOTIFY_NETWORK_CONNECTION %s network", dr->wValue ? "connected to" : "disconnected from"); goto exit; + case USB_CDC_NOTIFY_SPEED_CHANGE: + dev_dbg(&desc->intf->dev, "SPEED_CHANGE received (len %u)", + urb->actual_length); + goto exit; default: clear_bit(WDM_POLL_RUNNING, &desc->flags); dev_err(&desc->intf->dev, @@ -262,9 +267,9 @@ static void wdm_int_callback(struct urb *urb) } spin_lock(&desc->iuspin); - clear_bit(WDM_READ, &desc->flags); responding = test_and_set_bit(WDM_RESPONDING, &desc->flags); - if (!responding && !test_bit(WDM_DISCONNECTING, &desc->flags) + if (!desc->resp_count++ && !responding + && !test_bit(WDM_DISCONNECTING, &desc->flags) && !test_bit(WDM_SUSPENDING, &desc->flags)) { rv = usb_submit_urb(desc->response, GFP_ATOMIC); dev_dbg(&desc->intf->dev, "%s: usb_submit_urb %d", @@ -521,10 +526,36 @@ retry: desc->length -= cntr; /* in case we had outstanding data */ - if (!desc->length) + if (!desc->length) { clear_bit(WDM_READ, &desc->flags); - spin_unlock_irq(&desc->iuspin); + if (--desc->resp_count) { + set_bit(WDM_RESPONDING, &desc->flags); + spin_unlock_irq(&desc->iuspin); + + rv = usb_submit_urb(desc->response, GFP_KERNEL); + if (rv) { + dev_err(&desc->intf->dev, + "%s: usb_submit_urb failed with result %d\n", + __func__, rv); + spin_lock_irq(&desc->iuspin); + clear_bit(WDM_RESPONDING, &desc->flags); + spin_unlock_irq(&desc->iuspin); + + if (rv == -ENOMEM) { + rv = schedule_work(&desc->rxwork); + if (rv) + dev_err(&desc->intf->dev, "Cannot schedule work\n"); + } else { + spin_lock_irq(&desc->iuspin); + desc->resp_count = 0; + spin_unlock_irq(&desc->iuspin); + } + } + } else + spin_unlock_irq(&desc->iuspin); + } else + spin_unlock_irq(&desc->iuspin); rv = cntr; @@ -635,6 +666,9 @@ static int wdm_release(struct inode *inode, struct file *file) if (!test_bit(WDM_DISCONNECTING, &desc->flags)) { dev_dbg(&desc->intf->dev, "wdm_release: cleanup"); kill_urbs(desc); + spin_lock_irq(&desc->iuspin); + desc->resp_count = 0; + spin_unlock_irq(&desc->iuspin); desc->manage_power(desc->intf, 0); } else { /* must avoid dev_printk here as desc->intf is invalid */ diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 71dc5d768fa5..967152a63bd3 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -914,10 +914,8 @@ static int proc_control(struct dev_state *ps, void __user *arg) snoop(&dev->dev, "control urb: bRequestType=%02x " "bRequest=%02x wValue=%04x " "wIndex=%04x wLength=%04x\n", - ctrl.bRequestType, ctrl.bRequest, - __le16_to_cpup(&ctrl.wValue), - __le16_to_cpup(&ctrl.wIndex), - __le16_to_cpup(&ctrl.wLength)); + ctrl.bRequestType, ctrl.bRequest, ctrl.wValue, + ctrl.wIndex, ctrl.wLength); if (ctrl.bRequestType & 0x80) { if (ctrl.wLength && !access_ok(VERIFY_WRITE, ctrl.data, ctrl.wLength)) { @@ -1636,32 +1634,32 @@ static int proc_reapurbnonblock(struct dev_state *ps, void __user *arg) static int proc_control_compat(struct dev_state *ps, struct usbdevfs_ctrltransfer32 __user *p32) { - struct usbdevfs_ctrltransfer __user *p; - __u32 udata; - p = compat_alloc_user_space(sizeof(*p)); - if (copy_in_user(p, p32, (sizeof(*p32) - sizeof(compat_caddr_t))) || - get_user(udata, &p32->data) || + struct usbdevfs_ctrltransfer __user *p; + __u32 udata; + p = compat_alloc_user_space(sizeof(*p)); + if (copy_in_user(p, p32, (sizeof(*p32) - sizeof(compat_caddr_t))) || + get_user(udata, &p32->data) || put_user(compat_ptr(udata), &p->data)) return -EFAULT; - return proc_control(ps, p); + return proc_control(ps, p); } static int proc_bulk_compat(struct dev_state *ps, struct usbdevfs_bulktransfer32 __user *p32) { - struct usbdevfs_bulktransfer __user *p; - compat_uint_t n; - compat_caddr_t addr; + struct usbdevfs_bulktransfer __user *p; + compat_uint_t n; + compat_caddr_t addr; - p = compat_alloc_user_space(sizeof(*p)); + p = compat_alloc_user_space(sizeof(*p)); - if (get_user(n, &p32->ep) || put_user(n, &p->ep) || - get_user(n, &p32->len) || put_user(n, &p->len) || - get_user(n, &p32->timeout) || put_user(n, &p->timeout) || - get_user(addr, &p32->data) || put_user(compat_ptr(addr), &p->data)) - return -EFAULT; + if (get_user(n, &p32->ep) || put_user(n, &p->ep) || + get_user(n, &p32->len) || put_user(n, &p->len) || + get_user(n, &p32->timeout) || put_user(n, &p->timeout) || + get_user(addr, &p32->data) || put_user(compat_ptr(addr), &p->data)) + return -EFAULT; - return proc_bulk(ps, p); + return proc_bulk(ps, p); } static int proc_disconnectsignal_compat(struct dev_state *ps, void __user *arg) { diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index f7841d44feda..47aade2a5e74 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1179,8 +1179,8 @@ static int usb_resume_interface(struct usb_device *udev, "reset_resume", status); } else { intf->needs_binding = 1; - dev_warn(&intf->dev, "no %s for driver %s?\n", - "reset_resume", driver->name); + dev_dbg(&intf->dev, "no reset_resume for driver %s?\n", + driver->name); } } else { status = driver->resume(intf); @@ -1790,6 +1790,9 @@ int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable) struct usb_hcd *hcd = bus_to_hcd(udev->bus); int ret = -EPERM; + if (enable && !udev->usb2_hw_lpm_allowed) + return 0; + if (hcd->driver->set_usb2_hw_lpm) { ret = hcd->driver->set_usb2_hw_lpm(hcd, udev, enable); if (!ret) diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c index 7421888087a3..3bdfbf88a0ae 100644 --- a/drivers/usb/core/file.c +++ b/drivers/usb/core/file.c @@ -8,7 +8,7 @@ * (C) Copyright Deti Fliegl 1999 (new USB architecture) * (C) Copyright Randy Dunlap 2000 * (C) Copyright David Brownell 2000-2001 (kernel hotplug, usb_device_id, - more docs, etc) + * more docs, etc) * (C) Copyright Yggdrasil Computing, Inc. 2000 * (usb_device_id matching changes by Adam J. Richter) * (C) Copyright Greg Kroah-Hartman 2002-2003 @@ -27,7 +27,7 @@ static const struct file_operations *usb_minors[MAX_USB_MINORS]; static DECLARE_RWSEM(minor_rwsem); -static int usb_open(struct inode * inode, struct file * file) +static int usb_open(struct inode *inode, struct file *file) { int minor = iminor(inode); const struct file_operations *c; @@ -44,7 +44,7 @@ static int usb_open(struct inode * inode, struct file * file) file->f_op = new_fops; /* Curiouser and curiouser... NULL ->open() as "no device" ? */ if (file->f_op->open) - err = file->f_op->open(inode,file); + err = file->f_op->open(inode, file); if (err) { fops_put(file->f_op); file->f_op = fops_get(old_fops); @@ -166,7 +166,7 @@ int usb_register_dev(struct usb_interface *intf, char *temp; #ifdef CONFIG_USB_DYNAMIC_MINORS - /* + /* * We don't care what the device tries to start at, we want to start * at zero to pack the devices into the smallest available space with * no holes in the minor range. diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index b9d3c43e3859..dfe9d0f22978 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -215,6 +215,9 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) goto disable_pci; } + hcd->amd_resume_bug = (usb_hcd_amd_remote_wakeup_quirk(dev) && + driver->flags & (HCD_USB11 | HCD_USB3)) ? 1 : 0; + if (driver->flags & HCD_MEMORY) { /* EHCI, OHCI */ hcd->rsrc_start = pci_resource_start(dev, 0); diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index d6a8d23f047b..6bffb8c87bc9 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -6,7 +6,7 @@ * (C) Copyright Deti Fliegl 1999 * (C) Copyright Randy Dunlap 2000 * (C) Copyright David Brownell 2000-2002 - * + * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your @@ -40,6 +40,7 @@ #include <linux/platform_device.h> #include <linux/workqueue.h> #include <linux/pm_runtime.h> +#include <linux/types.h> #include <linux/usb.h> #include <linux/usb/hcd.h> @@ -92,10 +93,7 @@ EXPORT_SYMBOL_GPL (usb_bus_list); /* used when allocating bus numbers */ #define USB_MAXBUS 64 -struct usb_busmap { - unsigned long busmap [USB_MAXBUS / (8*sizeof (unsigned long))]; -}; -static struct usb_busmap busmap; +static DECLARE_BITMAP(busmap, USB_MAXBUS); /* used when updating list of hcds */ DEFINE_MUTEX(usb_bus_list_lock); /* exported only for usbfs */ @@ -171,7 +169,7 @@ static const u8 usb25_rh_dev_descriptor[18] = { }; /* usb 2.0 root hub device descriptor */ -static const u8 usb2_rh_dev_descriptor [18] = { +static const u8 usb2_rh_dev_descriptor[18] = { 0x12, /* __u8 bLength; */ 0x01, /* __u8 bDescriptorType; Device */ 0x00, 0x02, /* __le16 bcdUSB; v2.0 */ @@ -194,7 +192,7 @@ static const u8 usb2_rh_dev_descriptor [18] = { /* no usb 2.0 root hub "device qualifier" descriptor: one speed only */ /* usb 1.1 root hub device descriptor */ -static const u8 usb11_rh_dev_descriptor [18] = { +static const u8 usb11_rh_dev_descriptor[18] = { 0x12, /* __u8 bLength; */ 0x01, /* __u8 bDescriptorType; Device */ 0x10, 0x01, /* __le16 bcdUSB; v1.1 */ @@ -219,7 +217,7 @@ static const u8 usb11_rh_dev_descriptor [18] = { /* Configuration descriptors for our root hubs */ -static const u8 fs_rh_config_descriptor [] = { +static const u8 fs_rh_config_descriptor[] = { /* one configuration */ 0x09, /* __u8 bLength; */ @@ -228,13 +226,13 @@ static const u8 fs_rh_config_descriptor [] = { 0x01, /* __u8 bNumInterfaces; (1) */ 0x01, /* __u8 bConfigurationValue; */ 0x00, /* __u8 iConfiguration; */ - 0xc0, /* __u8 bmAttributes; + 0xc0, /* __u8 bmAttributes; Bit 7: must be set, 6: Self-powered, 5: Remote wakeup, 4..0: resvd */ 0x00, /* __u8 MaxPower; */ - + /* USB 1.1: * USB 2.0, single TT organization (mandatory): * one interface, protocol 0 @@ -256,17 +254,17 @@ static const u8 fs_rh_config_descriptor [] = { 0x00, /* __u8 if_bInterfaceSubClass; */ 0x00, /* __u8 if_bInterfaceProtocol; [usb1.1 or single tt] */ 0x00, /* __u8 if_iInterface; */ - + /* one endpoint (status change endpoint) */ 0x07, /* __u8 ep_bLength; */ 0x05, /* __u8 ep_bDescriptorType; Endpoint */ 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */ - 0x03, /* __u8 ep_bmAttributes; Interrupt */ - 0x02, 0x00, /* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */ + 0x03, /* __u8 ep_bmAttributes; Interrupt */ + 0x02, 0x00, /* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */ 0xff /* __u8 ep_bInterval; (255ms -- usb 2.0 spec) */ }; -static const u8 hs_rh_config_descriptor [] = { +static const u8 hs_rh_config_descriptor[] = { /* one configuration */ 0x09, /* __u8 bLength; */ @@ -275,13 +273,13 @@ static const u8 hs_rh_config_descriptor [] = { 0x01, /* __u8 bNumInterfaces; (1) */ 0x01, /* __u8 bConfigurationValue; */ 0x00, /* __u8 iConfiguration; */ - 0xc0, /* __u8 bmAttributes; + 0xc0, /* __u8 bmAttributes; Bit 7: must be set, 6: Self-powered, 5: Remote wakeup, 4..0: resvd */ 0x00, /* __u8 MaxPower; */ - + /* USB 1.1: * USB 2.0, single TT organization (mandatory): * one interface, protocol 0 @@ -303,12 +301,12 @@ static const u8 hs_rh_config_descriptor [] = { 0x00, /* __u8 if_bInterfaceSubClass; */ 0x00, /* __u8 if_bInterfaceProtocol; [usb1.1 or single tt] */ 0x00, /* __u8 if_iInterface; */ - + /* one endpoint (status change endpoint) */ 0x07, /* __u8 ep_bLength; */ 0x05, /* __u8 ep_bDescriptorType; Endpoint */ 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */ - 0x03, /* __u8 ep_bmAttributes; Interrupt */ + 0x03, /* __u8 ep_bmAttributes; Interrupt */ /* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) * see hub.c:hub_configure() for details. */ (USB_MAXCHILDREN + 1 + 7) / 8, 0x00, @@ -428,7 +426,7 @@ rh_string(int id, struct usb_hcd const *hcd, u8 *data, unsigned len) char const *s; static char const langids[4] = {4, USB_DT_STRING, 0x09, 0x04}; - // language ids + /* language ids */ switch (id) { case 0: /* Array of LANGID codes (0x0409 is MSFT-speak for "en-us") */ @@ -464,7 +462,7 @@ rh_string(int id, struct usb_hcd const *hcd, u8 *data, unsigned len) static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) { struct usb_ctrlrequest *cmd; - u16 typeReq, wValue, wIndex, wLength; + u16 typeReq, wValue, wIndex, wLength; u8 *ubuf = urb->transfer_buffer; unsigned len = 0; int status; @@ -526,10 +524,10 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) */ case DeviceRequest | USB_REQ_GET_STATUS: - tbuf [0] = (device_may_wakeup(&hcd->self.root_hub->dev) + tbuf[0] = (device_may_wakeup(&hcd->self.root_hub->dev) << USB_DEVICE_REMOTE_WAKEUP) | (1 << USB_DEVICE_SELF_POWERED); - tbuf [1] = 0; + tbuf[1] = 0; len = 2; break; case DeviceOutRequest | USB_REQ_CLEAR_FEATURE: @@ -546,7 +544,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) goto error; break; case DeviceRequest | USB_REQ_GET_CONFIGURATION: - tbuf [0] = 1; + tbuf[0] = 1; len = 1; /* FALLTHROUGH */ case DeviceOutRequest | USB_REQ_SET_CONFIGURATION: @@ -609,13 +607,13 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) } break; case DeviceRequest | USB_REQ_GET_INTERFACE: - tbuf [0] = 0; + tbuf[0] = 0; len = 1; /* FALLTHROUGH */ case DeviceOutRequest | USB_REQ_SET_INTERFACE: break; case DeviceOutRequest | USB_REQ_SET_ADDRESS: - // wValue == urb->dev->devaddr + /* wValue == urb->dev->devaddr */ dev_dbg (hcd->self.controller, "root hub device address %d\n", wValue); break; @@ -625,9 +623,9 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) /* ENDPOINT REQUESTS */ case EndpointRequest | USB_REQ_GET_STATUS: - // ENDPOINT_HALT flag - tbuf [0] = 0; - tbuf [1] = 0; + /* ENDPOINT_HALT flag */ + tbuf[0] = 0; + tbuf[1] = 0; len = 2; /* FALLTHROUGH */ case EndpointOutRequest | USB_REQ_CLEAR_FEATURE: @@ -683,7 +681,7 @@ error: if (urb->transfer_buffer_length < len) len = urb->transfer_buffer_length; urb->actual_length = len; - // always USB_DIR_IN, toward host + /* always USB_DIR_IN, toward host */ memcpy (ubuf, bufp, len); /* report whether RH hardware supports remote wakeup */ @@ -877,11 +875,11 @@ static ssize_t authorized_default_store(struct device *dev, usb_hcd = bus_to_hcd(usb_bus); result = sscanf(buf, "%u\n", &val); if (result == 1) { - usb_hcd->authorized_default = val? 1 : 0; + usb_hcd->authorized_default = val ? 1 : 0; result = size; - } - else + } else { result = -EINVAL; + } return result; } static DEVICE_ATTR_RW(authorized_default); @@ -941,12 +939,12 @@ static int usb_register_bus(struct usb_bus *bus) int busnum; mutex_lock(&usb_bus_list_lock); - busnum = find_next_zero_bit (busmap.busmap, USB_MAXBUS, 1); + busnum = find_next_zero_bit(busmap, USB_MAXBUS, 1); if (busnum >= USB_MAXBUS) { printk (KERN_ERR "%s: too many buses\n", usbcore_name); goto error_find_busnum; } - set_bit (busnum, busmap.busmap); + set_bit(busnum, busmap); bus->busnum = busnum; /* Add it to the local list of buses */ @@ -987,7 +985,7 @@ static void usb_deregister_bus (struct usb_bus *bus) usb_notify_remove_bus(bus); - clear_bit (bus->busnum, busmap.busmap); + clear_bit(bus->busnum, busmap); } /** @@ -1033,6 +1031,7 @@ static int register_root_hub(struct usb_hcd *hcd) dev_name(&usb_dev->dev), retval); return retval; } + usb_dev->lpm_capable = usb_device_supports_lpm(usb_dev); } retval = usb_new_device (usb_dev); @@ -1120,21 +1119,21 @@ long usb_calc_bus_time (int speed, int is_input, int isoc, int bytecount) case USB_SPEED_LOW: /* INTR only */ if (is_input) { tmp = (67667L * (31L + 10L * BitTime (bytecount))) / 1000L; - return (64060L + (2 * BW_HUB_LS_SETUP) + BW_HOST_DELAY + tmp); + return 64060L + (2 * BW_HUB_LS_SETUP) + BW_HOST_DELAY + tmp; } else { tmp = (66700L * (31L + 10L * BitTime (bytecount))) / 1000L; - return (64107L + (2 * BW_HUB_LS_SETUP) + BW_HOST_DELAY + tmp); + return 64107L + (2 * BW_HUB_LS_SETUP) + BW_HOST_DELAY + tmp; } case USB_SPEED_FULL: /* ISOC or INTR */ if (isoc) { tmp = (8354L * (31L + 10L * BitTime (bytecount))) / 1000L; - return (((is_input) ? 7268L : 6265L) + BW_HOST_DELAY + tmp); + return ((is_input) ? 7268L : 6265L) + BW_HOST_DELAY + tmp; } else { tmp = (8354L * (31L + 10L * BitTime (bytecount))) / 1000L; - return (9107L + BW_HOST_DELAY + tmp); + return 9107L + BW_HOST_DELAY + tmp; } case USB_SPEED_HIGH: /* ISOC or INTR */ - // FIXME adjust for input vs output + /* FIXME adjust for input vs output */ if (isoc) tmp = HS_NSECS_ISO (bytecount); else @@ -1651,6 +1650,7 @@ int usb_hcd_unlink_urb (struct urb *urb, int status) static void __usb_hcd_giveback_urb(struct urb *urb) { struct usb_hcd *hcd = bus_to_hcd(urb->dev->bus); + struct usb_anchor *anchor = urb->anchor; int status = urb->unlinked; unsigned long flags; @@ -1662,6 +1662,7 @@ static void __usb_hcd_giveback_urb(struct urb *urb) unmap_urb_for_dma(hcd, urb); usbmon_urb_complete(&hcd->self, urb, status); + usb_anchor_suspend_wakeups(anchor); usb_unanchor_urb(urb); /* pass ownership to the completion handler */ @@ -1681,6 +1682,7 @@ static void __usb_hcd_giveback_urb(struct urb *urb) urb->complete(urb); local_irq_restore(flags); + usb_anchor_resume_wakeups(anchor); atomic_dec(&urb->use_count); if (unlikely(atomic_read(&urb->reject))) wake_up(&usb_kill_urb_queue); @@ -1703,7 +1705,9 @@ static void usb_giveback_urb_bh(unsigned long param) urb = list_entry(local_list.next, struct urb, urb_list); list_del_init(&urb->urb_list); + bh->completing_ep = urb->ep; __usb_hcd_giveback_urb(urb); + bh->completing_ep = NULL; } /* check if there are new URBs to giveback */ @@ -1812,7 +1816,7 @@ rescan: case USB_ENDPOINT_XFER_INT: s = "-intr"; break; default: - s = "-iso"; break; + s = "-iso"; break; }; s; })); @@ -2073,8 +2077,11 @@ EXPORT_SYMBOL_GPL(usb_alloc_streams); * * Reverts a group of bulk endpoints back to not using stream IDs. * Can fail if we are given bad arguments, or HCD is broken. + * + * Return: On success, the number of allocated streams. On failure, a negative + * error code. */ -void usb_free_streams(struct usb_interface *interface, +int usb_free_streams(struct usb_interface *interface, struct usb_host_endpoint **eps, unsigned int num_eps, gfp_t mem_flags) { @@ -2085,14 +2092,14 @@ void usb_free_streams(struct usb_interface *interface, dev = interface_to_usbdev(interface); hcd = bus_to_hcd(dev->bus); if (dev->speed != USB_SPEED_SUPER) - return; + return -EINVAL; /* Streams only apply to bulk endpoints. */ for (i = 0; i < num_eps; i++) if (!eps[i] || !usb_endpoint_xfer_bulk(&eps[i]->desc)) - return; + return -EINVAL; - hcd->driver->free_streams(hcd, dev, eps, num_eps, mem_flags); + return hcd->driver->free_streams(hcd, dev, eps, num_eps, mem_flags); } EXPORT_SYMBOL_GPL(usb_free_streams); @@ -2245,7 +2252,7 @@ static void hcd_resume_work(struct work_struct *work) } /** - * usb_hcd_resume_root_hub - called by HCD to resume its root hub + * usb_hcd_resume_root_hub - called by HCD to resume its root hub * @hcd: host controller for this root hub * * The USB host controller calls this function when its root hub is @@ -2324,15 +2331,8 @@ EXPORT_SYMBOL_GPL(usb_bus_start_enum); irqreturn_t usb_hcd_irq (int irq, void *__hcd) { struct usb_hcd *hcd = __hcd; - unsigned long flags; irqreturn_t rc; - /* IRQF_DISABLED doesn't work correctly with shared IRQs - * when the first handler doesn't use it. So let's just - * assume it's never used. - */ - local_irq_save(flags); - if (unlikely(HCD_DEAD(hcd) || !HCD_HW_ACCESSIBLE(hcd))) rc = IRQ_NONE; else if (hcd->driver->irq(hcd) == IRQ_NONE) @@ -2340,7 +2340,6 @@ irqreturn_t usb_hcd_irq (int irq, void *__hcd) else rc = IRQ_HANDLED; - local_irq_restore(flags); return rc; } EXPORT_SYMBOL_GPL(usb_hcd_irq); @@ -2547,13 +2546,6 @@ static int usb_hcd_request_irqs(struct usb_hcd *hcd, if (hcd->driver->irq) { - /* IRQF_DISABLED doesn't work as advertised when used together - * with IRQF_SHARED. As usb_hcd_irq() will always disable - * interrupts we can remove it here. - */ - if (irqflags & IRQF_SHARED) - irqflags &= ~IRQF_DISABLED; - snprintf(hcd->irq_descr, sizeof(hcd->irq_descr), "%s:usb%d", hcd->driver->description, hcd->self.busnum); retval = request_irq(irqnum, &usb_hcd_irq, irqflags, @@ -2600,7 +2592,7 @@ int usb_add_hcd(struct usb_hcd *hcd, /* Keep old behaviour if authorized_default is not in [0, 1]. */ if (authorized_default < 0 || authorized_default > 1) - hcd->authorized_default = hcd->wireless? 0 : 1; + hcd->authorized_default = hcd->wireless ? 0 : 1; else hcd->authorized_default = authorized_default; set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); @@ -2743,7 +2735,7 @@ err_allocate_root_hub: err_register_bus: hcd_buffer_destroy(hcd); return retval; -} +} EXPORT_SYMBOL_GPL(usb_add_hcd); /** @@ -2818,7 +2810,7 @@ void usb_remove_hcd(struct usb_hcd *hcd) EXPORT_SYMBOL_GPL(usb_remove_hcd); void -usb_hcd_platform_shutdown(struct platform_device* dev) +usb_hcd_platform_shutdown(struct platform_device *dev) { struct usb_hcd *hcd = platform_get_drvdata(dev); @@ -2840,7 +2832,7 @@ struct usb_mon_operations *mon_ops; * Notice that the code is minimally error-proof. Because usbmon needs * symbols from usbcore, usbcore gets referenced and cannot be unloaded first. */ - + int usb_mon_register (struct usb_mon_operations *ops) { diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index e6b682c6c236..06cec635e703 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -120,7 +120,7 @@ static inline char *portspeed(struct usb_hub *hub, int portstatus) if (hub_is_superspeed(hub->hdev)) return "5.0 Gb/s"; if (portstatus & USB_PORT_STAT_HIGH_SPEED) - return "480 Mb/s"; + return "480 Mb/s"; else if (portstatus & USB_PORT_STAT_LOW_SPEED) return "1.5 Mb/s"; else @@ -135,7 +135,7 @@ struct usb_hub *usb_hub_to_struct_hub(struct usb_device *hdev) return usb_get_intfdata(hdev->actconfig->interface[0]); } -static int usb_device_supports_lpm(struct usb_device *udev) +int usb_device_supports_lpm(struct usb_device *udev) { /* USB 2.1 (and greater) devices indicate LPM support through * their USB 2.0 Extended Capabilities BOS descriptor. @@ -156,6 +156,11 @@ static int usb_device_supports_lpm(struct usb_device *udev) "Power management will be impacted.\n"); return 0; } + + /* udev is root hub */ + if (!udev->parent) + return 1; + if (udev->parent->lpm_capable) return 1; @@ -310,9 +315,9 @@ static void usb_set_lpm_parameters(struct usb_device *udev) return; udev_u1_del = udev->bos->ss_cap->bU1devExitLat; - udev_u2_del = udev->bos->ss_cap->bU2DevExitLat; + udev_u2_del = le16_to_cpu(udev->bos->ss_cap->bU2DevExitLat); hub_u1_del = udev->parent->bos->ss_cap->bU1devExitLat; - hub_u2_del = udev->parent->bos->ss_cap->bU2DevExitLat; + hub_u2_del = le16_to_cpu(udev->parent->bos->ss_cap->bU2DevExitLat); usb_set_lpm_mel(udev, &udev->u1_params, udev_u1_del, hub, &udev->parent->u1_params, hub_u1_del); @@ -433,7 +438,7 @@ static void set_port_led( case HUB_LED_OFF: s = "off"; break; case HUB_LED_AUTO: s = "auto"; break; default: s = "??"; break; - }; s; }), + } s; }), status); } @@ -857,7 +862,7 @@ static int hub_hub_status(struct usb_hub *hub, "%s failed (err = %d)\n", __func__, ret); } else { *status = le16_to_cpu(hub->status->hub.wHubStatus); - *change = le16_to_cpu(hub->status->hub.wHubChange); + *change = le16_to_cpu(hub->status->hub.wHubChange); ret = 0; } mutex_unlock(&hub->status_mutex); @@ -956,7 +961,7 @@ static void hub_port_logical_disconnect(struct usb_hub *hub, int port1) */ set_bit(port1, hub->change_bits); - kick_khubd(hub); + kick_khubd(hub); } /** @@ -1107,16 +1112,13 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) /* * USB3 protocol ports will automatically transition * to Enabled state when detect an USB3.0 device attach. - * Do not disable USB3 protocol ports. + * Do not disable USB3 protocol ports, just pretend + * power was lost */ - if (!hub_is_superspeed(hdev)) { + portstatus &= ~USB_PORT_STAT_ENABLE; + if (!hub_is_superspeed(hdev)) usb_clear_port_feature(hdev, port1, USB_PORT_FEAT_ENABLE); - portstatus &= ~USB_PORT_STAT_ENABLE; - } else { - /* Pretend that power was lost for USB3 devs */ - portstatus &= ~USB_PORT_STAT_ENABLE; - } } /* Clear status-change flags; we'll debounce later */ @@ -1130,6 +1132,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) usb_clear_port_feature(hub->hdev, port1, USB_PORT_FEAT_C_ENABLE); } + if (portchange & USB_PORT_STAT_C_RESET) { + need_debounce_delay = true; + usb_clear_port_feature(hub->hdev, port1, + USB_PORT_FEAT_C_RESET); + } if ((portchange & USB_PORT_STAT_C_BH_RESET) && hub_is_superspeed(hub->hdev)) { need_debounce_delay = true; @@ -1361,7 +1368,7 @@ static int hub_configure(struct usb_hub *hub, if ((wHubCharacteristics & HUB_CHAR_COMPOUND) && !(hub_is_superspeed(hdev))) { int i; - char portstr [USB_MAXCHILDREN + 1]; + char portstr[USB_MAXCHILDREN + 1]; for (i = 0; i < hdev->maxchild; i++) portstr[i] = hub->descriptor->u.hs.DeviceRemovable @@ -1429,32 +1436,32 @@ static int hub_configure(struct usb_hub *hub, /* Note 8 FS bit times == (8 bits / 12000000 bps) ~= 666ns */ switch (wHubCharacteristics & HUB_CHAR_TTTT) { - case HUB_TTTT_8_BITS: - if (hdev->descriptor.bDeviceProtocol != 0) { - hub->tt.think_time = 666; - dev_dbg(hub_dev, "TT requires at most %d " - "FS bit times (%d ns)\n", - 8, hub->tt.think_time); - } - break; - case HUB_TTTT_16_BITS: - hub->tt.think_time = 666 * 2; - dev_dbg(hub_dev, "TT requires at most %d " - "FS bit times (%d ns)\n", - 16, hub->tt.think_time); - break; - case HUB_TTTT_24_BITS: - hub->tt.think_time = 666 * 3; + case HUB_TTTT_8_BITS: + if (hdev->descriptor.bDeviceProtocol != 0) { + hub->tt.think_time = 666; dev_dbg(hub_dev, "TT requires at most %d " "FS bit times (%d ns)\n", - 24, hub->tt.think_time); - break; - case HUB_TTTT_32_BITS: - hub->tt.think_time = 666 * 4; - dev_dbg(hub_dev, "TT requires at most %d " - "FS bit times (%d ns)\n", - 32, hub->tt.think_time); - break; + 8, hub->tt.think_time); + } + break; + case HUB_TTTT_16_BITS: + hub->tt.think_time = 666 * 2; + dev_dbg(hub_dev, "TT requires at most %d " + "FS bit times (%d ns)\n", + 16, hub->tt.think_time); + break; + case HUB_TTTT_24_BITS: + hub->tt.think_time = 666 * 3; + dev_dbg(hub_dev, "TT requires at most %d " + "FS bit times (%d ns)\n", + 24, hub->tt.think_time); + break; + case HUB_TTTT_32_BITS: + hub->tt.think_time = 666 * 4; + dev_dbg(hub_dev, "TT requires at most %d " + "FS bit times (%d ns)\n", + 32, hub->tt.think_time); + break; } /* probe() zeroes hub->indicator[] */ @@ -1560,7 +1567,7 @@ static int hub_configure(struct usb_hub *hub, /* maybe cycle the hub leds */ if (hub->has_indicators && blinkenlights) - hub->indicator [0] = INDICATOR_CYCLE; + hub->indicator[0] = INDICATOR_CYCLE; for (i = 0; i < hdev->maxchild; i++) { ret = usb_hub_create_port_device(hub, i + 1); @@ -1978,7 +1985,7 @@ static void choose_devnum(struct usb_device *udev) if (devnum >= 128) devnum = find_next_zero_bit(bus->devmap.devicemap, 128, 1); - bus->devnum_next = ( devnum >= 127 ? 1 : devnum + 1); + bus->devnum_next = (devnum >= 127 ? 1 : devnum + 1); } if (devnum < 128) { set_bit(devnum, bus->devmap.devicemap); @@ -2018,8 +2025,8 @@ static void hub_free_dev(struct usb_device *udev) * Something got disconnected. Get rid of it and all of its children. * * If *pdev is a normal device then the parent hub must already be locked. - * If *pdev is a root hub then this routine will acquire the - * usb_bus_list_lock on behalf of the caller. + * If *pdev is a root hub then the caller must hold the usb_bus_list_lock, + * which protects the set of root hubs as well as the list of buses. * * Only hub drivers (including virtual root hub drivers for host * controllers) should ever call this. @@ -2232,8 +2239,7 @@ static int usb_enumerate_device(struct usb_device *udev) udev->product = kstrdup("n/a (unauthorized)", GFP_KERNEL); udev->manufacturer = kstrdup("n/a (unauthorized)", GFP_KERNEL); udev->serial = kstrdup("n/a (unauthorized)", GFP_KERNEL); - } - else { + } else { /* read the standard strings and cache them if present */ udev->product = usb_cache_string(udev, udev->descriptor.iProduct); udev->manufacturer = usb_cache_string(udev, @@ -2489,7 +2495,7 @@ error_device_descriptor: usb_autosuspend_device(usb_dev); error_autoresume: out_authorized: - usb_unlock_device(usb_dev); // complements locktree + usb_unlock_device(usb_dev); /* complements locktree */ return result; } @@ -3108,8 +3114,8 @@ static int finish_port_resume(struct usb_device *udev) retry_reset_resume: status = usb_reset_and_verify_device(udev); - /* 10.5.4.5 says be sure devices in the tree are still there. - * For now let's assume the device didn't go crazy on resume, + /* 10.5.4.5 says be sure devices in the tree are still there. + * For now let's assume the device didn't go crazy on resume, * and device drivers will know about any resume quirks. */ if (status == 0) { @@ -3211,7 +3217,7 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg) if (status == 0 && !port_is_suspended(hub, portstatus)) goto SuspendCleared; - // dev_dbg(hub->intfdev, "resume port %d\n", port1); + /* dev_dbg(hub->intfdev, "resume port %d\n", port1); */ set_bit(port1, hub->busy_bits); @@ -3855,7 +3861,7 @@ EXPORT_SYMBOL_GPL(usb_enable_ltm); * Between connect detection and reset signaling there must be a delay * of 100ms at least for debounce and power-settling. The corresponding * timer shall restart whenever the downstream port detects a disconnect. - * + * * Apparently there are some bluetooth and irda-dongles and a number of * low-speed devices for which this debounce period may last over a second. * Not covered by the spec - but easy to deal with. @@ -3949,6 +3955,32 @@ static int hub_set_address(struct usb_device *udev, int devnum) return retval; } +/* + * There are reports of USB 3.0 devices that say they support USB 2.0 Link PM + * when they're plugged into a USB 2.0 port, but they don't work when LPM is + * enabled. + * + * Only enable USB 2.0 Link PM if the port is internal (hardwired), or the + * device says it supports the new USB 2.0 Link PM errata by setting the BESL + * support bit in the BOS descriptor. + */ +static void hub_set_initial_usb2_lpm_policy(struct usb_device *udev) +{ + int connect_type; + + if (!udev->usb2_hw_lpm_capable) + return; + + connect_type = usb_get_hub_port_connect_type(udev->parent, + udev->portnum); + + if ((udev->bos->ext_cap->bmAttributes & USB_BESL_SUPPORT) || + connect_type == USB_PORT_CONNECT_TYPE_HARD_WIRED) { + udev->usb2_hw_lpm_allowed = 1; + usb_set_usb2_hardware_lpm(udev, 1); + } +} + /* Reset device, (re)assign address, get device descriptor. * Device connection must be stable, no more debouncing needed. * Returns device in USB_STATE_ADDRESS, except on error. @@ -4055,7 +4087,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, udev->tt = &hub->tt; udev->ttport = port1; } - + /* Why interleave GET_DESCRIPTOR and SET_ADDRESS this way? * Because device hardware and firmware is sometimes buggy in * this area, and this is how Linux has done it for ages. @@ -4130,11 +4162,11 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, #undef GET_DESCRIPTOR_BUFSIZE } - /* - * If device is WUSB, we already assigned an - * unauthorized address in the Connect Ack sequence; - * authorization will assign the final address. - */ + /* + * If device is WUSB, we already assigned an + * unauthorized address in the Connect Ack sequence; + * authorization will assign the final address. + */ if (udev->wusb == 0) { for (j = 0; j < SET_ADDRESS_TRIES; ++j) { retval = hub_set_address(udev, devnum); @@ -4163,7 +4195,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, msleep(10); if (USE_NEW_SCHEME(retry_counter) && !(hcd->driver->flags & HCD_USB3)) break; - } + } retval = usb_get_device_descriptor(udev, 8); if (retval < 8) { @@ -4219,7 +4251,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i); usb_ep0_reinit(udev); } - + retval = usb_get_device_descriptor(udev, USB_DT_DEVICE_SIZE); if (retval < (signed)sizeof(udev->descriptor)) { if (retval != -ENODEV) @@ -4242,6 +4274,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, /* notify HCD that we have a device connected and addressed */ if (hcd->driver->update_device) hcd->driver->update_device(hcd, udev); + hub_set_initial_usb2_lpm_policy(udev); fail: if (retval) { hub_port_disable(hub, port1, 0); @@ -4316,7 +4349,7 @@ hub_power_remaining (struct usb_hub *hub) } if (remaining < 0) { dev_warn(hub->intfdev, "%dmA over power budget!\n", - - remaining); + -remaining); remaining = 0; } return remaining; @@ -4427,7 +4460,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, set_port_feature(hdev, port1, USB_PORT_FEAT_POWER); if (portstatus & USB_PORT_STAT_ENABLE) - goto done; + goto done; return; } if (hub_is_superspeed(hub->hdev)) @@ -4450,7 +4483,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, } usb_set_device_state(udev, USB_STATE_POWERED); - udev->bus_mA = hub->mA_per_port; + udev->bus_mA = hub->mA_per_port; udev->level = hdev->level + 1; udev->wusb = hub_is_wusb(hub); @@ -4504,7 +4537,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1, goto loop_disable; } } - + /* check for devices running slower than they could */ if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0200 && udev->speed == USB_SPEED_FULL @@ -4564,7 +4597,7 @@ loop: dev_err(hub_dev, "unable to enumerate USB device on port %d\n", port1); } - + done: hub_port_disable(hub, port1, 1); if (hcd->driver->relinquish_port && !hub->hdev->parent) @@ -4729,7 +4762,7 @@ static void hub_events(void) * EM interference sometimes causes badly * shielded USB devices to be shutdown by * the hub, this hack enables them again. - * Works at least with mouse driver. + * Works at least with mouse driver. */ if (!(portstatus & USB_PORT_STAT_ENABLE) && !connect_change @@ -4841,7 +4874,7 @@ static void hub_events(void) dev_dbg(hub_dev, "over-current change\n"); clear_hub_feature(hdev, C_HUB_OVER_CURRENT); msleep(500); /* Cool down */ - hub_power_on(hub, true); + hub_power_on(hub, true); hub_hub_status(hub, &status, &unused); if (status & HUB_STATUS_OVERCURRENT) dev_err(hub_dev, "over-current " @@ -4861,7 +4894,7 @@ static void hub_events(void) usb_unlock_device(hdev); kref_put(&hub->kref, hub_release); - } /* end while (1) */ + } /* end while (1) */ } static int hub_thread(void *__unused) @@ -4886,7 +4919,7 @@ static int hub_thread(void *__unused) static const struct usb_device_id hub_id_table[] = { { .match_flags = USB_DEVICE_ID_MATCH_VENDOR - | USB_DEVICE_ID_MATCH_INT_CLASS, + | USB_DEVICE_ID_MATCH_INT_CLASS, .idVendor = USB_VENDOR_GENESYS_LOGIC, .bInterfaceClass = USB_CLASS_HUB, .driver_info = HUB_QUIRK_CHECK_PORT_AUTOSUSPEND}, @@ -5086,6 +5119,12 @@ static int usb_reset_and_verify_device(struct usb_device *udev) } parent_hub = usb_hub_to_struct_hub(parent_hdev); + /* Disable USB2 hardware LPM. + * It will be re-enabled by the enumeration process. + */ + if (udev->usb2_hw_lpm_enabled == 1) + usb_set_usb2_hardware_lpm(udev, 0); + bos = udev->bos; udev->bos = NULL; @@ -5120,13 +5159,13 @@ static int usb_reset_and_verify_device(struct usb_device *udev) if (ret < 0) goto re_enumerate; - + /* Device might have changed firmware (DFU or similar) */ if (descriptors_changed(udev, &descriptor, bos)) { dev_info(&udev->dev, "device firmware changed\n"); udev->descriptor = descriptor; /* for disconnect() calls */ goto re_enumerate; - } + } /* Restore the device's previous configuration */ if (!udev->actconfig) @@ -5151,7 +5190,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev) udev->actconfig->desc.bConfigurationValue, ret); mutex_unlock(hcd->bandwidth_mutex); goto re_enumerate; - } + } mutex_unlock(hcd->bandwidth_mutex); usb_set_device_state(udev, USB_STATE_CONFIGURED); @@ -5193,12 +5232,13 @@ static int usb_reset_and_verify_device(struct usb_device *udev) done: /* Now that the alt settings are re-installed, enable LTM and LPM. */ + usb_set_usb2_hardware_lpm(udev, 1); usb_unlocked_enable_lpm(udev); usb_enable_ltm(udev); usb_release_bos_descriptor(udev); udev->bos = bos; return 0; - + re_enumerate: /* LPM state doesn't matter when we're about to destroy the device. */ hub_port_logical_disconnect(parent_hub, port1); diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 82927e1ed27d..bb315970e475 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1182,8 +1182,12 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0) put_device(&dev->actconfig->interface[i]->dev); dev->actconfig->interface[i] = NULL; } + + if (dev->usb2_hw_lpm_enabled == 1) + usb_set_usb2_hardware_lpm(dev, 0); usb_unlocked_disable_lpm(dev); usb_disable_ltm(dev); + dev->actconfig = NULL; if (dev->state == USB_STATE_CONFIGURED) usb_set_device_state(dev, USB_STATE_ADDRESS); diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 5b44cd47da5b..12924dbfdc2c 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -13,6 +13,7 @@ #include <linux/usb.h> #include <linux/usb/quirks.h> +#include <linux/usb/hcd.h> #include "usb.h" /* Lists of quirky USB devices, split in device quirks and interface quirks. @@ -97,6 +98,9 @@ static const struct usb_device_id usb_quirk_list[] = { /* Alcor Micro Corp. Hub */ { USB_DEVICE(0x058f, 0x9254), .driver_info = USB_QUIRK_RESET_RESUME }, + /* MicroTouch Systems touchscreen */ + { USB_DEVICE(0x0596, 0x051e), .driver_info = USB_QUIRK_RESET_RESUME }, + /* appletouch */ { USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME }, @@ -130,6 +134,9 @@ static const struct usb_device_id usb_quirk_list[] = { /* Broadcom BCM92035DGROM BT dongle */ { USB_DEVICE(0x0a5c, 0x2021), .driver_info = USB_QUIRK_RESET_RESUME }, + /* MAYA44USB sound device */ + { USB_DEVICE(0x0a92, 0x0091), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Action Semiconductor flash disk */ { USB_DEVICE(0x10d6, 0x2200), .driver_info = USB_QUIRK_STRING_FETCH_255 }, @@ -155,6 +162,21 @@ static const struct usb_device_id usb_interface_quirk_list[] = { { } /* terminating entry must be last */ }; +static const struct usb_device_id usb_amd_resume_quirk_list[] = { + /* Lenovo Mouse with Pixart controller */ + { USB_DEVICE(0x17ef, 0x602e), .driver_info = USB_QUIRK_RESET_RESUME }, + + /* Pixart Mouse */ + { USB_DEVICE(0x093a, 0x2500), .driver_info = USB_QUIRK_RESET_RESUME }, + { USB_DEVICE(0x093a, 0x2510), .driver_info = USB_QUIRK_RESET_RESUME }, + { USB_DEVICE(0x093a, 0x2521), .driver_info = USB_QUIRK_RESET_RESUME }, + + /* Logitech Optical Mouse M90/M100 */ + { USB_DEVICE(0x046d, 0xc05a), .driver_info = USB_QUIRK_RESET_RESUME }, + + { } /* terminating entry must be last */ +}; + static bool usb_match_any_interface(struct usb_device *udev, const struct usb_device_id *id) { @@ -181,6 +203,18 @@ static bool usb_match_any_interface(struct usb_device *udev, return false; } +static int usb_amd_resume_quirk(struct usb_device *udev) +{ + struct usb_hcd *hcd; + + hcd = bus_to_hcd(udev->bus); + /* The device should be attached directly to root hub */ + if (udev->level == 1 && hcd->amd_resume_bug == 1) + return 1; + + return 0; +} + static u32 __usb_detect_quirks(struct usb_device *udev, const struct usb_device_id *id) { @@ -206,6 +240,15 @@ static u32 __usb_detect_quirks(struct usb_device *udev, void usb_detect_quirks(struct usb_device *udev) { udev->quirks = __usb_detect_quirks(udev, usb_quirk_list); + + /* + * Pixart-based mice would trigger remote wakeup issue on AMD + * Yangtze chipset, so set them as RESET_RESUME flag. + */ + if (usb_amd_resume_quirk(udev)) + udev->quirks |= __usb_detect_quirks(udev, + usb_amd_resume_quirk_list); + if (udev->quirks) dev_dbg(&udev->dev, "USB quirks for this device: %x\n", udev->quirks); diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c index 6d2c8edb1ffe..52a97adf02a0 100644 --- a/drivers/usb/core/sysfs.c +++ b/drivers/usb/core/sysfs.c @@ -23,14 +23,16 @@ static ssize_t field##_show(struct device *dev, \ { \ struct usb_device *udev; \ struct usb_host_config *actconfig; \ + ssize_t rc = 0; \ \ udev = to_usb_device(dev); \ + usb_lock_device(udev); \ actconfig = udev->actconfig; \ if (actconfig) \ - return sprintf(buf, format_string, \ + rc = sprintf(buf, format_string, \ actconfig->desc.field); \ - else \ - return 0; \ + usb_unlock_device(udev); \ + return rc; \ } \ #define usb_actconfig_attr(field, format_string) \ @@ -45,12 +47,15 @@ static ssize_t bMaxPower_show(struct device *dev, { struct usb_device *udev; struct usb_host_config *actconfig; + ssize_t rc = 0; udev = to_usb_device(dev); + usb_lock_device(udev); actconfig = udev->actconfig; - if (!actconfig) - return 0; - return sprintf(buf, "%dmA\n", usb_get_max_power(udev, actconfig)); + if (actconfig) + rc = sprintf(buf, "%dmA\n", usb_get_max_power(udev, actconfig)); + usb_unlock_device(udev); + return rc; } static DEVICE_ATTR_RO(bMaxPower); @@ -59,12 +64,15 @@ static ssize_t configuration_show(struct device *dev, { struct usb_device *udev; struct usb_host_config *actconfig; + ssize_t rc = 0; udev = to_usb_device(dev); + usb_lock_device(udev); actconfig = udev->actconfig; - if ((!actconfig) || (!actconfig->string)) - return 0; - return sprintf(buf, "%s\n", actconfig->string); + if (actconfig && actconfig->string) + rc = sprintf(buf, "%s\n", actconfig->string); + usb_unlock_device(udev); + return rc; } static DEVICE_ATTR_RO(configuration); @@ -390,7 +398,8 @@ static DEVICE_ATTR_RW(autosuspend); static const char on_string[] = "on"; static const char auto_string[] = "auto"; -static void warn_level(void) { +static void warn_level(void) +{ static int level_warned; if (!level_warned) { @@ -449,7 +458,7 @@ static ssize_t usb2_hardware_lpm_show(struct device *dev, struct usb_device *udev = to_usb_device(dev); const char *p; - if (udev->usb2_hw_lpm_enabled == 1) + if (udev->usb2_hw_lpm_allowed == 1) p = "enabled"; else p = "disabled"; @@ -469,8 +478,10 @@ static ssize_t usb2_hardware_lpm_store(struct device *dev, ret = strtobool(buf, &value); - if (!ret) + if (!ret) { + udev->usb2_hw_lpm_allowed = value; ret = usb_set_usb2_hardware_lpm(udev, value); + } usb_unlock_device(udev); @@ -644,7 +655,7 @@ static ssize_t authorized_store(struct device *dev, result = usb_deauthorize_device(usb_dev); else result = usb_authorize_device(usb_dev); - return result < 0? result : size; + return result < 0 ? result : size; } static DEVICE_ATTR_IGNORE_LOCKDEP(authorized, S_IRUGO | S_IWUSR, authorized_show, authorized_store); @@ -764,6 +775,7 @@ read_descriptors(struct file *filp, struct kobject *kobj, * Following that are the raw descriptor entries for all the * configurations (config plus subsidiary descriptors). */ + usb_lock_device(udev); for (cfgno = -1; cfgno < udev->descriptor.bNumConfigurations && nleft > 0; ++cfgno) { if (cfgno < 0) { @@ -784,6 +796,7 @@ read_descriptors(struct file *filp, struct kobject *kobj, off -= srclen; } } + usb_unlock_device(udev); return count - nleft; } @@ -870,9 +883,7 @@ static ssize_t interface_show(struct device *dev, struct device_attribute *attr, char *string; intf = to_usb_interface(dev); - string = intf->cur_altsetting->string; - barrier(); /* The altsetting might change! */ - + string = ACCESS_ONCE(intf->cur_altsetting->string); if (!string) return 0; return sprintf(buf, "%s\n", string); @@ -888,7 +899,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, intf = to_usb_interface(dev); udev = interface_to_usbdev(intf); - alt = intf->cur_altsetting; + alt = ACCESS_ONCE(intf->cur_altsetting); return sprintf(buf, "usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02X" "ic%02Xisc%02Xip%02Xin%02X\n", @@ -909,23 +920,14 @@ static ssize_t supports_autosuspend_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct usb_interface *intf; - struct usb_device *udev; - int ret; + int s; - intf = to_usb_interface(dev); - udev = interface_to_usbdev(intf); - - usb_lock_device(udev); + device_lock(dev); /* Devices will be autosuspended even when an interface isn't claimed */ - if (!intf->dev.driver || - to_usb_driver(intf->dev.driver)->supports_autosuspend) - ret = sprintf(buf, "%u\n", 1); - else - ret = sprintf(buf, "%u\n", 0); - usb_unlock_device(udev); + s = (!dev->driver || to_usb_driver(dev->driver)->supports_autosuspend); + device_unlock(dev); - return ret; + return sprintf(buf, "%u\n", s); } static DEVICE_ATTR_RO(supports_autosuspend); diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index c12bc790a6a7..e62208356c89 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -138,13 +138,19 @@ void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor) } EXPORT_SYMBOL_GPL(usb_anchor_urb); +static int usb_anchor_check_wakeup(struct usb_anchor *anchor) +{ + return atomic_read(&anchor->suspend_wakeups) == 0 && + list_empty(&anchor->urb_list); +} + /* Callers must hold anchor->lock */ static void __usb_unanchor_urb(struct urb *urb, struct usb_anchor *anchor) { urb->anchor = NULL; list_del(&urb->anchor_list); usb_put_urb(urb); - if (list_empty(&anchor->urb_list)) + if (usb_anchor_check_wakeup(anchor)) wake_up(&anchor->wait); } @@ -846,6 +852,39 @@ void usb_unlink_anchored_urbs(struct usb_anchor *anchor) EXPORT_SYMBOL_GPL(usb_unlink_anchored_urbs); /** + * usb_anchor_suspend_wakeups + * @anchor: the anchor you want to suspend wakeups on + * + * Call this to stop the last urb being unanchored from waking up any + * usb_wait_anchor_empty_timeout waiters. This is used in the hcd urb give- + * back path to delay waking up until after the completion handler has run. + */ +void usb_anchor_suspend_wakeups(struct usb_anchor *anchor) +{ + if (anchor) + atomic_inc(&anchor->suspend_wakeups); +} +EXPORT_SYMBOL_GPL(usb_anchor_suspend_wakeups); + +/** + * usb_anchor_resume_wakeups + * @anchor: the anchor you want to resume wakeups on + * + * Allow usb_wait_anchor_empty_timeout waiters to be woken up again, and + * wake up any current waiters if the anchor is empty. + */ +void usb_anchor_resume_wakeups(struct usb_anchor *anchor) +{ + if (!anchor) + return; + + atomic_dec(&anchor->suspend_wakeups); + if (usb_anchor_check_wakeup(anchor)) + wake_up(&anchor->wait); +} +EXPORT_SYMBOL_GPL(usb_anchor_resume_wakeups); + +/** * usb_wait_anchor_empty_timeout - wait for an anchor to be unused * @anchor: the anchor you want to become unused * @timeout: how long you are willing to wait in milliseconds @@ -858,7 +897,8 @@ EXPORT_SYMBOL_GPL(usb_unlink_anchored_urbs); int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor, unsigned int timeout) { - return wait_event_timeout(anchor->wait, list_empty(&anchor->urb_list), + return wait_event_timeout(anchor->wait, + usb_anchor_check_wakeup(anchor), msecs_to_jiffies(timeout)); } EXPORT_SYMBOL_GPL(usb_wait_anchor_empty_timeout); diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 0a6ee2e70b25..4d1144990d4c 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -497,7 +497,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent, dev->authorized = 1; else { dev->authorized = usb_hcd->authorized_default; - dev->wusb = usb_bus_is_wusb(bus)? 1 : 0; + dev->wusb = usb_bus_is_wusb(bus) ? 1 : 0; } return dev; } diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index 823857767a16..c49383669cd8 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -35,6 +35,7 @@ extern int usb_get_device_descriptor(struct usb_device *dev, unsigned int size); extern int usb_get_bos_descriptor(struct usb_device *dev); extern void usb_release_bos_descriptor(struct usb_device *dev); +extern int usb_device_supports_lpm(struct usb_device *udev); extern char *usb_cache_string(struct usb_device *udev, int index); extern int usb_set_configuration(struct usb_device *dev, int configuration); extern int usb_choose_configuration(struct usb_device *udev); diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 474162e9d01d..74f9cf02da07 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -584,7 +584,7 @@ static int dwc3_remove(struct platform_device *pdev) usb_phy_set_suspend(dwc->usb2_phy, 1); usb_phy_set_suspend(dwc->usb3_phy, 1); - pm_runtime_put(&pdev->dev); + pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); dwc3_debugfs_exit(dwc); @@ -691,7 +691,6 @@ static int dwc3_resume(struct device *dev) usb_phy_init(dwc->usb3_phy); usb_phy_init(dwc->usb2_phy); - msleep(100); spin_lock_irqsave(&dwc->lock, flags); diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 2e252aae51ca..31443aeedcdb 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -165,7 +165,6 @@ static int dwc3_pci_probe(struct pci_dev *pci, return 0; err3: - pci_set_drvdata(pci, NULL); platform_device_put(dwc3); err1: pci_disable_device(pci); @@ -180,7 +179,6 @@ static void dwc3_pci_remove(struct pci_dev *pci) platform_device_unregister(glue->dwc3); platform_device_unregister(glue->usb2_phy); platform_device_unregister(glue->usb3_phy); - pci_set_drvdata(pci, NULL); pci_disable_device(pci); } diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 7fa93f4bc507..95f7649c71a7 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -352,7 +352,7 @@ static int dwc3_ep0_handle_status(struct dwc3 *dwc, break; default: return -EINVAL; - }; + } response_pkt = (__le16 *) dwc->setup_buf; *response_pkt = cpu_to_le16(usb_status); @@ -470,7 +470,7 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc, default: return -EINVAL; - }; + } return 0; } @@ -709,7 +709,7 @@ static int dwc3_ep0_std_request(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) dev_vdbg(dwc->dev, "Forwarding to gadget driver\n"); ret = dwc3_ep0_delegate_req(dwc, ctrl); break; - }; + } return ret; } diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c index 5e29ddeb4d33..8cfc3191be50 100644 --- a/drivers/usb/early/ehci-dbgp.c +++ b/drivers/usb/early/ehci-dbgp.c @@ -568,10 +568,6 @@ try_again: dbgp_printk("Could not find attached debug device\n"); goto err; } - if (ret < 0) { - dbgp_printk("Attached device is not a debug device\n"); - goto err; - } dbgp_endpoint_out = dbgp_desc.bDebugOutEndpoint; dbgp_endpoint_in = dbgp_desc.bDebugInEndpoint; diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 48cddf3cd6b8..a91e6422f930 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -58,6 +58,20 @@ config USB_GADGET_DEBUG trying to track down. Never enable these messages for a production build. +config USB_GADGET_VERBOSE + bool "Verbose debugging Messages (DEVELOPMENT)" + depends on USB_GADGET_DEBUG + help + Many controller and gadget drivers will print verbose debugging + messages if you use this option to ask for those messages. + + Avoid enabling these messages, even if you're actively + debugging such a driver. Many drivers will emit so many + messages that the driver timings are affected, which will + either create new failure modes or remove the one you're + trying to track down. Never enable these messages for a + production build. + config USB_GADGET_DEBUG_FILES boolean "Debugging information files (DEVELOPMENT)" depends on PROC_FS @@ -525,6 +539,9 @@ config USB_F_SUBSET config USB_F_RNDIS tristate +config USB_F_MASS_STORAGE + tristate + choice tristate "USB Gadget Drivers" default USB_ETH @@ -662,6 +679,16 @@ config USB_CONFIGFS_PHONET help The Phonet protocol implementation for USB device. +config USB_CONFIGFS_MASS_STORAGE + boolean "Mass storage" + depends on USB_CONFIGFS + select USB_F_MASS_STORAGE + help + The Mass Storage Gadget acts as a USB Mass Storage disk drive. + As its storage repository it can use a regular file or a block + device (in much the same way as the "loop" device driver), + specified as a module parameter or sysfs option. + config USB_ZERO tristate "Gadget Zero (DEVELOPMENT)" select USB_LIBCOMPOSITE @@ -878,6 +905,7 @@ config USB_MASS_STORAGE tristate "Mass Storage Gadget" depends on BLOCK select USB_LIBCOMPOSITE + select USB_F_MASS_STORAGE help The Mass Storage Gadget acts as a USB Mass Storage disk drive. As its storage repository it can use a regular file or a block @@ -1001,6 +1029,7 @@ config USB_G_ACM_MS select USB_LIBCOMPOSITE select USB_U_SERIAL select USB_F_ACM + select USB_F_MASS_STORAGE help This driver provides two functions in one configuration: a mass storage, and a CDC ACM (serial port) link. @@ -1015,8 +1044,8 @@ config USB_G_MULTI select USB_LIBCOMPOSITE select USB_U_SERIAL select USB_U_ETHER - select USB_U_RNDIS select USB_F_ACM + select USB_F_MASS_STORAGE help The Multifunction Composite Gadget provides Ethernet (RNDIS and/or CDC Ethernet), mass storage and ACM serial link @@ -1035,6 +1064,8 @@ config USB_G_MULTI config USB_G_MULTI_RNDIS bool "RNDIS + CDC Serial + Storage configuration" depends on USB_G_MULTI + select USB_U_RNDIS + select USB_F_RNDIS default y help This option enables a configuration with RNDIS, CDC Serial and @@ -1048,6 +1079,7 @@ config USB_G_MULTI_CDC bool "CDC Ethernet + CDC Serial + Storage configuration" depends on USB_G_MULTI default n + select USB_F_ECM help This option enables a configuration with CDC Ethernet (ECM), CDC Serial and Mass Storage functions available in the Multifunction diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 386db9daf1d9..f1af39603d4d 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -1,7 +1,8 @@ # # USB peripheral controller drivers # -ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG +ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG +ccflags-$(CONFIG_USB_GADGET_VERBOSE) += -DVERBOSE_DEBUG obj-$(CONFIG_USB_GADGET) += udc-core.o obj-$(CONFIG_USB_LIBCOMPOSITE) += libcomposite.o @@ -60,6 +61,8 @@ usb_f_ecm_subset-y := f_subset.o obj-$(CONFIG_USB_F_SUBSET) += usb_f_ecm_subset.o usb_f_rndis-y := f_rndis.o obj-$(CONFIG_USB_F_RNDIS) += usb_f_rndis.o +usb_f_mass_storage-y := f_mass_storage.o storage_common.o +obj-$(CONFIG_USB_F_MASS_STORAGE)+= usb_f_mass_storage.o # # USB gadget drivers diff --git a/drivers/usb/gadget/acm_ms.c b/drivers/usb/gadget/acm_ms.c index 4b947bb50f62..7bfa134fe0e3 100644 --- a/drivers/usb/gadget/acm_ms.c +++ b/drivers/usb/gadget/acm_ms.c @@ -31,16 +31,7 @@ #define ACM_MS_VENDOR_NUM 0x1d6b /* Linux Foundation */ #define ACM_MS_PRODUCT_NUM 0x0106 /* Composite Gadget: ACM + MS*/ -/*-------------------------------------------------------------------------*/ - -/* - * Kbuild is not very cooperative with respect to linking separately - * compiled library objects into one module. So for now we won't use - * separate compilation ... ensuring init/exit sections work to shrink - * the runtime footprint, and giving us at least some parts of what - * a "gcc --combine ... part1.c part2.c part3.c ... " build would. - */ -#include "f_mass_storage.c" +#include "f_mass_storage.h" /*-------------------------------------------------------------------------*/ USB_GADGET_COMPOSITE_OPTIONS(); @@ -104,18 +95,35 @@ static struct usb_gadget_strings *dev_strings[] = { /****************************** Configurations ******************************/ static struct fsg_module_parameters fsg_mod_data = { .stall = 1 }; -FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data); +#ifdef CONFIG_USB_GADGET_DEBUG_FILES -static struct fsg_common fsg_common; +static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS; + +#else + +/* + * Number of buffers we will use. + * 2 is usually enough for good buffering pipeline + */ +#define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS + +#endif /* CONFIG_USB_DEBUG */ + +FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data); /*-------------------------------------------------------------------------*/ static struct usb_function *f_acm; static struct usb_function_instance *f_acm_inst; + +static struct usb_function_instance *fi_msg; +static struct usb_function *f_msg; + /* * We _always_ have both ACM and mass storage functions. */ static int __init acm_ms_do_config(struct usb_configuration *c) { + struct fsg_opts *opts; int status; if (gadget_is_otg(c->cdev->gadget)) { @@ -123,31 +131,37 @@ static int __init acm_ms_do_config(struct usb_configuration *c) c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - f_acm_inst = usb_get_function_instance("acm"); - if (IS_ERR(f_acm_inst)) - return PTR_ERR(f_acm_inst); + opts = fsg_opts_from_func_inst(fi_msg); f_acm = usb_get_function(f_acm_inst); - if (IS_ERR(f_acm)) { - status = PTR_ERR(f_acm); - goto err_func; + if (IS_ERR(f_acm)) + return PTR_ERR(f_acm); + + f_msg = usb_get_function(fi_msg); + if (IS_ERR(f_msg)) { + status = PTR_ERR(f_msg); + goto put_acm; } status = usb_add_function(c, f_acm); if (status < 0) - goto err_conf; + goto put_msg; - status = fsg_bind_config(c->cdev, c, &fsg_common); - if (status < 0) - goto err_fsg; + status = fsg_common_run_thread(opts->common); + if (status) + goto remove_acm; + + status = usb_add_function(c, f_msg); + if (status) + goto remove_acm; return 0; -err_fsg: +remove_acm: usb_remove_function(c, f_acm); -err_conf: +put_msg: + usb_put_function(f_msg); +put_acm: usb_put_function(f_acm); -err_func: - usb_put_function_instance(f_acm_inst); return status; } @@ -163,45 +177,82 @@ static struct usb_configuration acm_ms_config_driver = { static int __init acm_ms_bind(struct usb_composite_dev *cdev) { struct usb_gadget *gadget = cdev->gadget; + struct fsg_opts *opts; + struct fsg_config config; int status; - void *retp; - /* set up mass storage function */ - retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data); - if (IS_ERR(retp)) { - status = PTR_ERR(retp); - return PTR_ERR(retp); + f_acm_inst = usb_get_function_instance("acm"); + if (IS_ERR(f_acm_inst)) + return PTR_ERR(f_acm_inst); + + fi_msg = usb_get_function_instance("mass_storage"); + if (IS_ERR(fi_msg)) { + status = PTR_ERR(fi_msg); + goto fail_get_msg; } + /* set up mass storage function */ + fsg_config_from_params(&config, &fsg_mod_data, fsg_num_buffers); + opts = fsg_opts_from_func_inst(fi_msg); + + opts->no_configfs = true; + status = fsg_common_set_num_buffers(opts->common, fsg_num_buffers); + if (status) + goto fail; + + status = fsg_common_set_nluns(opts->common, config.nluns); + if (status) + goto fail_set_nluns; + + status = fsg_common_set_cdev(opts->common, cdev, config.can_stall); + if (status) + goto fail_set_cdev; + + fsg_common_set_sysfs(opts->common, true); + status = fsg_common_create_luns(opts->common, &config); + if (status) + goto fail_set_cdev; + + fsg_common_set_inquiry_string(opts->common, config.vendor_name, + config.product_name); /* * Allocate string descriptor numbers ... note that string * contents can be overridden by the composite_dev glue. */ status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) - goto fail1; + goto fail_string_ids; device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id; device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; /* register our configuration */ status = usb_add_config(cdev, &acm_ms_config_driver, acm_ms_do_config); if (status < 0) - goto fail1; + goto fail_string_ids; usb_composite_overwrite_options(cdev, &coverwrite); dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n", DRIVER_DESC); - fsg_common_put(&fsg_common); return 0; /* error recovery */ -fail1: - fsg_common_put(&fsg_common); +fail_string_ids: + fsg_common_remove_luns(opts->common); +fail_set_cdev: + fsg_common_free_luns(opts->common); +fail_set_nluns: + fsg_common_free_buffers(opts->common); +fail: + usb_put_function_instance(fi_msg); +fail_get_msg: + usb_put_function_instance(f_acm_inst); return status; } static int __exit acm_ms_unbind(struct usb_composite_dev *cdev) { + usb_put_function(f_msg); + usb_put_function_instance(fi_msg); usb_put_function(f_acm); usb_put_function_instance(f_acm_inst); return 0; diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index a9a4346c83aa..54a1e2954cea 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -3078,8 +3078,6 @@ static void udc_pci_remove(struct pci_dev *pdev) if (dev->active) pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - udc_remove(dev); } diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index d4f0f3305759..3e7ae707f691 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -354,7 +354,7 @@ static u8 encode_bMaxPower(enum usb_device_speed speed, return DIV_ROUND_UP(val, 8); default: return DIV_ROUND_UP(val, 2); - }; + } } static int config_buf(struct usb_configuration *config, diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 8f0d6141e5e6..25885112fa35 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -557,7 +557,7 @@ static struct config_group *function_make( fi = usb_get_function_instance(func_name); if (IS_ERR(fi)) - return ERR_PTR(PTR_ERR(fi)); + return ERR_CAST(fi); ret = config_item_set_name(&fi->group.cg_item, name); if (ret) { @@ -991,6 +991,14 @@ static struct configfs_subsystem gadget_subsys = { .su_mutex = __MUTEX_INITIALIZER(gadget_subsys.su_mutex), }; +void unregister_gadget_item(struct config_item *item) +{ + struct gadget_info *gi = to_gadget_info(item); + + unregister_gadget(gi); +} +EXPORT_SYMBOL(unregister_gadget_item); + static int __init gadget_cfs_init(void) { int ret; diff --git a/drivers/usb/gadget/configfs.h b/drivers/usb/gadget/configfs.h new file mode 100644 index 000000000000..a7b564a913d1 --- /dev/null +++ b/drivers/usb/gadget/configfs.h @@ -0,0 +1,6 @@ +#ifndef USB__GADGET__CONFIGFS__H +#define USB__GADGET__CONFIGFS__H + +void unregister_gadget_item(struct config_item *item); + +#endif /* USB__GADGET__CONFIGFS__H */ diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index b8a2376971a4..8f4dae310923 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -544,7 +544,7 @@ static int dummy_enable(struct usb_ep *_ep, default: val = "ctrl"; break; - }; val; }), + } val; }), max, ep->stream_en ? "enabled" : "disabled"); /* at this point real hardware should be NAKing transfers @@ -2271,7 +2271,7 @@ static inline ssize_t show_urb(char *buf, size_t size, struct urb *urb) default: s = "?"; break; - }; s; }), + } s; }), ep, ep ? (usb_pipein(urb->pipe) ? "in" : "out") : "", ({ char *s; \ switch (usb_pipetype(urb->pipe)) { \ @@ -2287,7 +2287,7 @@ static inline ssize_t show_urb(char *buf, size_t size, struct urb *urb) default: \ s = "-iso"; \ break; \ - }; s; }), + } s; }), urb->actual_length, urb->transfer_buffer_length); } diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index a01d7d38c016..a03ba2c83589 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -213,12 +213,14 @@ #include <linux/spinlock.h> #include <linux/string.h> #include <linux/freezer.h> +#include <linux/module.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> #include <linux/usb/composite.h> #include "gadget_chips.h" +#include "configfs.h" /*------------------------------------------------------------------------*/ @@ -228,26 +230,30 @@ static const char fsg_string_interface[] = "Mass Storage"; -#include "storage_common.c" +#include "storage_common.h" +#include "f_mass_storage.h" +/* Static strings, in UTF-8 (for simplicity we use only ASCII characters) */ +static struct usb_string fsg_strings[] = { + {FSG_STRING_INTERFACE, fsg_string_interface}, + {} +}; + +static struct usb_gadget_strings fsg_stringtab = { + .language = 0x0409, /* en-us */ + .strings = fsg_strings, +}; + +static struct usb_gadget_strings *fsg_strings_array[] = { + &fsg_stringtab, + NULL, +}; /*-------------------------------------------------------------------------*/ struct fsg_dev; struct fsg_common; -/* FSF callback functions */ -struct fsg_operations { - /* - * Callback function to call when thread exits. If no - * callback is set or it returns value lower then zero MSF - * will force eject all LUNs it operates on (including those - * marked as non-removable or with prevent_medium_removal flag - * set). - */ - int (*thread_exits)(struct fsg_common *common); -}; - /* Data shared by all the FSG instances. */ struct fsg_common { struct usb_gadget *gadget; @@ -268,13 +274,14 @@ struct fsg_common { struct fsg_buffhd *next_buffhd_to_fill; struct fsg_buffhd *next_buffhd_to_drain; struct fsg_buffhd *buffhds; + unsigned int fsg_num_buffers; int cmnd_size; u8 cmnd[MAX_COMMAND_SIZE]; unsigned int nluns; unsigned int lun; - struct fsg_lun *luns; + struct fsg_lun **luns; struct fsg_lun *curlun; unsigned int bulk_out_maxpacket; @@ -294,6 +301,7 @@ struct fsg_common { unsigned int short_packet_received:1; unsigned int bad_lun_okay:1; unsigned int running:1; + unsigned int sysfs:1; int thread_wakeup_needed; struct completion thread_notifier; @@ -313,27 +321,6 @@ struct fsg_common { struct kref ref; }; -struct fsg_config { - unsigned nluns; - struct fsg_lun_config { - const char *filename; - char ro; - char removable; - char cdrom; - char nofua; - } luns[FSG_MAX_LUNS]; - - /* Callback functions. */ - const struct fsg_operations *ops; - /* Gadget's private data. */ - void *private_data; - - const char *vendor_name; /* 8 characters or less */ - const char *product_name; /* 16 characters or less */ - - char can_stall; -}; - struct fsg_dev { struct usb_function function; struct usb_gadget *gadget; /* Copy of cdev->gadget */ @@ -2172,7 +2159,7 @@ static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh) common->data_dir = DATA_DIR_NONE; common->lun = cbw->Lun; if (common->lun < common->nluns) - common->curlun = &common->luns[common->lun]; + common->curlun = common->luns[common->lun]; else common->curlun = NULL; common->tag = cbw->Tag; @@ -2244,7 +2231,7 @@ reset: if (common->fsg) { fsg = common->fsg; - for (i = 0; i < fsg_num_buffers; ++i) { + for (i = 0; i < common->fsg_num_buffers; ++i) { struct fsg_buffhd *bh = &common->buffhds[i]; if (bh->inreq) { @@ -2303,7 +2290,7 @@ reset: clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags); /* Allocate the requests */ - for (i = 0; i < fsg_num_buffers; ++i) { + for (i = 0; i < common->fsg_num_buffers; ++i) { struct fsg_buffhd *bh = &common->buffhds[i]; rc = alloc_request(common, fsg->bulk_in, &bh->inreq); @@ -2320,7 +2307,9 @@ reset: common->running = 1; for (i = 0; i < common->nluns; ++i) - common->luns[i].unit_attention_data = SS_RESET_OCCURRED; + if (common->luns[i]) + common->luns[i]->unit_attention_data = + SS_RESET_OCCURRED; return rc; } @@ -2372,7 +2361,7 @@ static void handle_exception(struct fsg_common *common) /* Cancel all the pending transfers */ if (likely(common->fsg)) { - for (i = 0; i < fsg_num_buffers; ++i) { + for (i = 0; i < common->fsg_num_buffers; ++i) { bh = &common->buffhds[i]; if (bh->inreq_busy) usb_ep_dequeue(common->fsg->bulk_in, bh->inreq); @@ -2384,7 +2373,7 @@ static void handle_exception(struct fsg_common *common) /* Wait until everything is idle */ for (;;) { int num_active = 0; - for (i = 0; i < fsg_num_buffers; ++i) { + for (i = 0; i < common->fsg_num_buffers; ++i) { bh = &common->buffhds[i]; num_active += bh->inreq_busy + bh->outreq_busy; } @@ -2407,7 +2396,7 @@ static void handle_exception(struct fsg_common *common) */ spin_lock_irq(&common->lock); - for (i = 0; i < fsg_num_buffers; ++i) { + for (i = 0; i < common->fsg_num_buffers; ++i) { bh = &common->buffhds[i]; bh->state = BUF_STATE_EMPTY; } @@ -2420,7 +2409,9 @@ static void handle_exception(struct fsg_common *common) common->state = FSG_STATE_STATUS_PHASE; else { for (i = 0; i < common->nluns; ++i) { - curlun = &common->luns[i]; + curlun = common->luns[i]; + if (!curlun) + continue; curlun->prevent_medium_removal = 0; curlun->sense_data = SS_NO_SENSE; curlun->unit_attention_data = SS_NO_SENSE; @@ -2462,8 +2453,9 @@ static void handle_exception(struct fsg_common *common) * CONFIG_CHANGE cases. */ /* for (i = 0; i < common->nluns; ++i) */ - /* common->luns[i].unit_attention_data = */ - /* SS_RESET_OCCURRED; */ + /* if (common->luns[i]) */ + /* common->luns[i]->unit_attention_data = */ + /* SS_RESET_OCCURRED; */ break; case FSG_STATE_CONFIG_CHANGE: @@ -2559,12 +2551,13 @@ static int fsg_main_thread(void *common_) if (!common->ops || !common->ops->thread_exits || common->ops->thread_exits(common) < 0) { - struct fsg_lun *curlun = common->luns; + struct fsg_lun **curlun_it = common->luns; unsigned i = common->nluns; down_write(&common->filesem); - for (; i--; ++curlun) { - if (!fsg_lun_is_open(curlun)) + for (; i--; ++curlun_it) { + struct fsg_lun *curlun = *curlun_it; + if (!curlun || !fsg_lun_is_open(curlun)) continue; fsg_lun_close(curlun); @@ -2580,6 +2573,56 @@ static int fsg_main_thread(void *common_) /*************************** DEVICE ATTRIBUTES ***************************/ +static ssize_t ro_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct fsg_lun *curlun = fsg_lun_from_dev(dev); + + return fsg_show_ro(curlun, buf); +} + +static ssize_t nofua_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct fsg_lun *curlun = fsg_lun_from_dev(dev); + + return fsg_show_nofua(curlun, buf); +} + +static ssize_t file_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct fsg_lun *curlun = fsg_lun_from_dev(dev); + struct rw_semaphore *filesem = dev_get_drvdata(dev); + + return fsg_show_file(curlun, filesem, buf); +} + +static ssize_t ro_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct fsg_lun *curlun = fsg_lun_from_dev(dev); + struct rw_semaphore *filesem = dev_get_drvdata(dev); + + return fsg_store_ro(curlun, filesem, buf, count); +} + +static ssize_t nofua_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct fsg_lun *curlun = fsg_lun_from_dev(dev); + + return fsg_store_nofua(curlun, buf, count); +} + +static ssize_t file_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct fsg_lun *curlun = fsg_lun_from_dev(dev); + struct rw_semaphore *filesem = dev_get_drvdata(dev); + + return fsg_store_file(curlun, filesem, buf, count); +} + static DEVICE_ATTR_RW(ro); static DEVICE_ATTR_RW(nofua); static DEVICE_ATTR_RW(file); @@ -2597,221 +2640,422 @@ static void fsg_lun_release(struct device *dev) /* Nothing needs to be done */ } -static inline void fsg_common_get(struct fsg_common *common) +void fsg_common_get(struct fsg_common *common) { kref_get(&common->ref); } +EXPORT_SYMBOL_GPL(fsg_common_get); -static inline void fsg_common_put(struct fsg_common *common) +void fsg_common_put(struct fsg_common *common) { kref_put(&common->ref, fsg_common_release); } +EXPORT_SYMBOL_GPL(fsg_common_put); -static struct fsg_common *fsg_common_init(struct fsg_common *common, - struct usb_composite_dev *cdev, - struct fsg_config *cfg) +/* check if fsg_num_buffers is within a valid range */ +static inline int fsg_num_buffers_validate(unsigned int fsg_num_buffers) { - struct usb_gadget *gadget = cdev->gadget; - struct fsg_buffhd *bh; - struct fsg_lun *curlun; - struct fsg_lun_config *lcfg; - int nluns, i, rc; - char *pathbuf; - - rc = fsg_num_buffers_validate(); - if (rc != 0) - return ERR_PTR(rc); - - /* Find out how many LUNs there should be */ - nluns = cfg->nluns; - if (nluns < 1 || nluns > FSG_MAX_LUNS) { - dev_err(&gadget->dev, "invalid number of LUNs: %u\n", nluns); - return ERR_PTR(-EINVAL); - } + if (fsg_num_buffers >= 2 && fsg_num_buffers <= 4) + return 0; + pr_err("fsg_num_buffers %u is out of range (%d to %d)\n", + fsg_num_buffers, 2, 4); + return -EINVAL; +} - /* Allocate? */ +static struct fsg_common *fsg_common_setup(struct fsg_common *common) +{ if (!common) { - common = kzalloc(sizeof *common, GFP_KERNEL); + common = kzalloc(sizeof(*common), GFP_KERNEL); if (!common) return ERR_PTR(-ENOMEM); common->free_storage_on_release = 1; } else { - memset(common, 0, sizeof *common); common->free_storage_on_release = 0; } + init_rwsem(&common->filesem); + spin_lock_init(&common->lock); + kref_init(&common->ref); + init_completion(&common->thread_notifier); + init_waitqueue_head(&common->fsg_wait); + common->state = FSG_STATE_TERMINATED; - common->buffhds = kcalloc(fsg_num_buffers, - sizeof *(common->buffhds), GFP_KERNEL); - if (!common->buffhds) { - if (common->free_storage_on_release) - kfree(common); - return ERR_PTR(-ENOMEM); + return common; +} + +void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs) +{ + common->sysfs = sysfs; +} +EXPORT_SYMBOL_GPL(fsg_common_set_sysfs); + +static void _fsg_common_free_buffers(struct fsg_buffhd *buffhds, unsigned n) +{ + if (buffhds) { + struct fsg_buffhd *bh = buffhds; + while (n--) { + kfree(bh->buf); + ++bh; + } + kfree(buffhds); } +} - common->ops = cfg->ops; - common->private_data = cfg->private_data; +int fsg_common_set_num_buffers(struct fsg_common *common, unsigned int n) +{ + struct fsg_buffhd *bh, *buffhds; + int i, rc; - common->gadget = gadget; - common->ep0 = gadget->ep0; - common->ep0req = cdev->req; - common->cdev = cdev; + rc = fsg_num_buffers_validate(n); + if (rc != 0) + return rc; + + buffhds = kcalloc(n, sizeof(*buffhds), GFP_KERNEL); + if (!buffhds) + return -ENOMEM; - /* Maybe allocate device-global string IDs, and patch descriptors */ - if (fsg_strings[FSG_STRING_INTERFACE].id == 0) { - rc = usb_string_id(cdev); - if (unlikely(rc < 0)) + /* Data buffers cyclic list */ + bh = buffhds; + i = n; + goto buffhds_first_it; + do { + bh->next = bh + 1; + ++bh; +buffhds_first_it: + bh->buf = kmalloc(FSG_BUFLEN, GFP_KERNEL); + if (unlikely(!bh->buf)) goto error_release; - fsg_strings[FSG_STRING_INTERFACE].id = rc; - fsg_intf_desc.iInterface = rc; - } + } while (--i); + bh->next = buffhds; + _fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers); + common->fsg_num_buffers = n; + common->buffhds = buffhds; + + return 0; + +error_release: /* - * Create the LUNs, open their backing files, and register the - * LUN devices in sysfs. + * "buf"s pointed to by heads after n - i are NULL + * so releasing them won't hurt */ - curlun = kcalloc(nluns, sizeof(*curlun), GFP_KERNEL); - if (unlikely(!curlun)) { - rc = -ENOMEM; - goto error_release; + _fsg_common_free_buffers(buffhds, n); + + return -ENOMEM; +} +EXPORT_SYMBOL_GPL(fsg_common_set_num_buffers); + +static inline void fsg_common_remove_sysfs(struct fsg_lun *lun) +{ + device_remove_file(&lun->dev, &dev_attr_nofua); + /* + * device_remove_file() => + * + * here the attr (e.g. dev_attr_ro) is only used to be passed to: + * + * sysfs_remove_file() => + * + * here e.g. both dev_attr_ro_cdrom and dev_attr_ro are in + * the same namespace and + * from here only attr->name is passed to: + * + * sysfs_hash_and_remove() + * + * attr->name is the same for dev_attr_ro_cdrom and + * dev_attr_ro + * attr->name is the same for dev_attr_file and + * dev_attr_file_nonremovable + * + * so we don't differentiate between removing e.g. dev_attr_ro_cdrom + * and dev_attr_ro + */ + device_remove_file(&lun->dev, &dev_attr_ro); + device_remove_file(&lun->dev, &dev_attr_file); +} + +void fsg_common_remove_lun(struct fsg_lun *lun, bool sysfs) +{ + if (sysfs) { + fsg_common_remove_sysfs(lun); + device_unregister(&lun->dev); } - common->luns = curlun; + fsg_lun_close(lun); + kfree(lun); +} +EXPORT_SYMBOL_GPL(fsg_common_remove_lun); - init_rwsem(&common->filesem); +static void _fsg_common_remove_luns(struct fsg_common *common, int n) +{ + int i; - for (i = 0, lcfg = cfg->luns; i < nluns; ++i, ++curlun, ++lcfg) { - curlun->cdrom = !!lcfg->cdrom; - curlun->ro = lcfg->cdrom || lcfg->ro; - curlun->initially_ro = curlun->ro; - curlun->removable = lcfg->removable; - curlun->dev.release = fsg_lun_release; - curlun->dev.parent = &gadget->dev; - /* curlun->dev.driver = &fsg_driver.driver; XXX */ - dev_set_drvdata(&curlun->dev, &common->filesem); - dev_set_name(&curlun->dev, "lun%d", i); - - rc = device_register(&curlun->dev); - if (rc) { - INFO(common, "failed to register LUN%d: %d\n", i, rc); - common->nluns = i; - put_device(&curlun->dev); - goto error_release; + for (i = 0; i < n; ++i) + if (common->luns[i]) { + fsg_common_remove_lun(common->luns[i], common->sysfs); + common->luns[i] = NULL; } +} +EXPORT_SYMBOL_GPL(fsg_common_remove_luns); - rc = device_create_file(&curlun->dev, - curlun->cdrom - ? &dev_attr_ro_cdrom - : &dev_attr_ro); - if (rc) - goto error_luns; - rc = device_create_file(&curlun->dev, - curlun->removable - ? &dev_attr_file - : &dev_attr_file_nonremovable); - if (rc) - goto error_luns; - rc = device_create_file(&curlun->dev, &dev_attr_nofua); - if (rc) - goto error_luns; +void fsg_common_remove_luns(struct fsg_common *common) +{ + _fsg_common_remove_luns(common, common->nluns); +} - if (lcfg->filename) { - rc = fsg_lun_open(curlun, lcfg->filename); - if (rc) - goto error_luns; - } else if (!curlun->removable) { - ERROR(common, "no file given for LUN%d\n", i); - rc = -EINVAL; - goto error_luns; - } +void fsg_common_free_luns(struct fsg_common *common) +{ + fsg_common_remove_luns(common); + kfree(common->luns); + common->luns = NULL; +} +EXPORT_SYMBOL_GPL(fsg_common_free_luns); + +int fsg_common_set_nluns(struct fsg_common *common, int nluns) +{ + struct fsg_lun **curlun; + + /* Find out how many LUNs there should be */ + if (nluns < 1 || nluns > FSG_MAX_LUNS) { + pr_err("invalid number of LUNs: %u\n", nluns); + return -EINVAL; } + + curlun = kcalloc(nluns, sizeof(*curlun), GFP_KERNEL); + if (unlikely(!curlun)) + return -ENOMEM; + + if (common->luns) + fsg_common_free_luns(common); + + common->luns = curlun; common->nluns = nluns; - /* Data buffers cyclic list */ - bh = common->buffhds; - i = fsg_num_buffers; - goto buffhds_first_it; - do { - bh->next = bh + 1; - ++bh; -buffhds_first_it: - bh->buf = kmalloc(FSG_BUFLEN, GFP_KERNEL); - if (unlikely(!bh->buf)) { - rc = -ENOMEM; - goto error_release; - } - } while (--i); - bh->next = common->buffhds; + pr_info("Number of LUNs=%d\n", common->nluns); - /* Prepare inquiryString */ - i = get_default_bcdDevice(); - snprintf(common->inquiry_string, sizeof common->inquiry_string, - "%-8s%-16s%04x", cfg->vendor_name ?: "Linux", - /* Assume product name dependent on the first LUN */ - cfg->product_name ?: (common->luns->cdrom - ? "File-CD Gadget" - : "File-Stor Gadget"), - i); + return 0; +} +EXPORT_SYMBOL_GPL(fsg_common_set_nluns); + +void fsg_common_set_ops(struct fsg_common *common, + const struct fsg_operations *ops) +{ + common->ops = ops; +} +EXPORT_SYMBOL_GPL(fsg_common_set_ops); + +void fsg_common_free_buffers(struct fsg_common *common) +{ + _fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers); + common->buffhds = NULL; +} +EXPORT_SYMBOL_GPL(fsg_common_free_buffers); + +int fsg_common_set_cdev(struct fsg_common *common, + struct usb_composite_dev *cdev, bool can_stall) +{ + struct usb_string *us; + + common->gadget = cdev->gadget; + common->ep0 = cdev->gadget->ep0; + common->ep0req = cdev->req; + common->cdev = cdev; + + us = usb_gstrings_attach(cdev, fsg_strings_array, + ARRAY_SIZE(fsg_strings)); + if (IS_ERR(us)) + return PTR_ERR(us); + + fsg_intf_desc.iInterface = us[FSG_STRING_INTERFACE].id; /* * Some peripheral controllers are known not to be able to * halt bulk endpoints correctly. If one of them is present, * disable stalls. */ - common->can_stall = cfg->can_stall && - !(gadget_is_at91(common->gadget)); + common->can_stall = can_stall && !(gadget_is_at91(common->gadget)); - spin_lock_init(&common->lock); - kref_init(&common->ref); + return 0; +} +EXPORT_SYMBOL_GPL(fsg_common_set_cdev); - /* Tell the thread to start working */ - common->thread_task = - kthread_create(fsg_main_thread, common, "file-storage"); - if (IS_ERR(common->thread_task)) { - rc = PTR_ERR(common->thread_task); - goto error_release; +static inline int fsg_common_add_sysfs(struct fsg_common *common, + struct fsg_lun *lun) +{ + int rc; + + rc = device_register(&lun->dev); + if (rc) { + put_device(&lun->dev); + return rc; } - init_completion(&common->thread_notifier); - init_waitqueue_head(&common->fsg_wait); - /* Information */ - INFO(common, FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n"); - INFO(common, "Number of LUNs=%d\n", common->nluns); + rc = device_create_file(&lun->dev, + lun->cdrom + ? &dev_attr_ro_cdrom + : &dev_attr_ro); + if (rc) + goto error; + rc = device_create_file(&lun->dev, + lun->removable + ? &dev_attr_file + : &dev_attr_file_nonremovable); + if (rc) + goto error; + rc = device_create_file(&lun->dev, &dev_attr_nofua); + if (rc) + goto error; + + return 0; + +error: + /* removing nonexistent files is a no-op */ + fsg_common_remove_sysfs(lun); + device_unregister(&lun->dev); + return rc; +} + +int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg, + unsigned int id, const char *name, + const char **name_pfx) +{ + struct fsg_lun *lun; + char *pathbuf, *p; + int rc = -ENOMEM; + + if (!common->nluns || !common->luns) + return -ENODEV; + + if (common->luns[id]) + return -EBUSY; + + if (!cfg->filename && !cfg->removable) { + pr_err("no file given for LUN%d\n", id); + return -EINVAL; + } + + lun = kzalloc(sizeof(*lun), GFP_KERNEL); + if (!lun) + return -ENOMEM; + + lun->name_pfx = name_pfx; + + lun->cdrom = !!cfg->cdrom; + lun->ro = cfg->cdrom || cfg->ro; + lun->initially_ro = lun->ro; + lun->removable = !!cfg->removable; + + if (!common->sysfs) { + /* we DON'T own the name!*/ + lun->name = name; + } else { + lun->dev.release = fsg_lun_release; + lun->dev.parent = &common->gadget->dev; + dev_set_drvdata(&lun->dev, &common->filesem); + dev_set_name(&lun->dev, "%s", name); + lun->name = dev_name(&lun->dev); + + rc = fsg_common_add_sysfs(common, lun); + if (rc) { + pr_info("failed to register LUN%d: %d\n", id, rc); + goto error_sysfs; + } + } + + common->luns[id] = lun; + + if (cfg->filename) { + rc = fsg_lun_open(lun, cfg->filename); + if (rc) + goto error_lun; + } pathbuf = kmalloc(PATH_MAX, GFP_KERNEL); - for (i = 0, nluns = common->nluns, curlun = common->luns; - i < nluns; - ++curlun, ++i) { - char *p = "(no medium)"; - if (fsg_lun_is_open(curlun)) { - p = "(error)"; - if (pathbuf) { - p = d_path(&curlun->filp->f_path, - pathbuf, PATH_MAX); - if (IS_ERR(p)) - p = "(error)"; - } + p = "(no medium)"; + if (fsg_lun_is_open(lun)) { + p = "(error)"; + if (pathbuf) { + p = d_path(&lun->filp->f_path, pathbuf, PATH_MAX); + if (IS_ERR(p)) + p = "(error)"; } - LINFO(curlun, "LUN: %s%s%sfile: %s\n", - curlun->removable ? "removable " : "", - curlun->ro ? "read only " : "", - curlun->cdrom ? "CD-ROM " : "", - p); } + pr_info("LUN: %s%s%sfile: %s\n", + lun->removable ? "removable " : "", + lun->ro ? "read only " : "", + lun->cdrom ? "CD-ROM " : "", + p); kfree(pathbuf); + return 0; + +error_lun: + if (common->sysfs) { + fsg_common_remove_sysfs(lun); + device_unregister(&lun->dev); + } + fsg_lun_close(lun); + common->luns[id] = NULL; +error_sysfs: + kfree(lun); + return rc; +} +EXPORT_SYMBOL_GPL(fsg_common_create_lun); + +int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg) +{ + char buf[8]; /* enough for 100000000 different numbers, decimal */ + int i, rc; + + for (i = 0; i < common->nluns; ++i) { + snprintf(buf, sizeof(buf), "lun%d", i); + rc = fsg_common_create_lun(common, &cfg->luns[i], i, buf, NULL); + if (rc) + goto fail; + } + + pr_info("Number of LUNs=%d\n", common->nluns); + + return 0; + +fail: + _fsg_common_remove_luns(common, i); + return rc; +} +EXPORT_SYMBOL_GPL(fsg_common_create_luns); + +void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn, + const char *pn) +{ + int i; + + /* Prepare inquiryString */ + i = get_default_bcdDevice(); + snprintf(common->inquiry_string, sizeof(common->inquiry_string), + "%-8s%-16s%04x", vn ?: "Linux", + /* Assume product name dependent on the first LUN */ + pn ?: ((*common->luns)->cdrom + ? "File-CD Gadget" + : "File-Stor Gadget"), + i); +} +EXPORT_SYMBOL_GPL(fsg_common_set_inquiry_string); + +int fsg_common_run_thread(struct fsg_common *common) +{ + common->state = FSG_STATE_IDLE; + /* Tell the thread to start working */ + common->thread_task = + kthread_create(fsg_main_thread, common, "file-storage"); + if (IS_ERR(common->thread_task)) { + common->state = FSG_STATE_TERMINATED; + return PTR_ERR(common->thread_task); + } + DBG(common, "I/O thread pid: %d\n", task_pid_nr(common->thread_task)); wake_up_process(common->thread_task); - return common; - -error_luns: - common->nluns = i + 1; -error_release: - common->state = FSG_STATE_TERMINATED; /* The thread is dead */ - /* Call fsg_common_release() directly, ref might be not initialised. */ - fsg_common_release(&common->ref); - return ERR_PTR(rc); + return 0; } +EXPORT_SYMBOL_GPL(fsg_common_run_thread); static void fsg_common_release(struct kref *ref) { @@ -2824,36 +3068,26 @@ static void fsg_common_release(struct kref *ref) } if (likely(common->luns)) { - struct fsg_lun *lun = common->luns; + struct fsg_lun **lun_it = common->luns; unsigned i = common->nluns; /* In error recovery common->nluns may be zero. */ - for (; i; --i, ++lun) { - device_remove_file(&lun->dev, &dev_attr_nofua); - device_remove_file(&lun->dev, - lun->cdrom - ? &dev_attr_ro_cdrom - : &dev_attr_ro); - device_remove_file(&lun->dev, - lun->removable - ? &dev_attr_file - : &dev_attr_file_nonremovable); + for (; i; --i, ++lun_it) { + struct fsg_lun *lun = *lun_it; + if (!lun) + continue; + if (common->sysfs) + fsg_common_remove_sysfs(lun); fsg_lun_close(lun); - device_unregister(&lun->dev); + if (common->sysfs) + device_unregister(&lun->dev); + kfree(lun); } kfree(common->luns); } - { - struct fsg_buffhd *bh = common->buffhds; - unsigned i = fsg_num_buffers; - do { - kfree(bh->buf); - } while (++bh, --i); - } - - kfree(common->buffhds); + _fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers); if (common->free_storage_on_release) kfree(common); } @@ -2861,24 +3095,6 @@ static void fsg_common_release(struct kref *ref) /*-------------------------------------------------------------------------*/ -static void fsg_unbind(struct usb_configuration *c, struct usb_function *f) -{ - struct fsg_dev *fsg = fsg_from_func(f); - struct fsg_common *common = fsg->common; - - DBG(fsg, "unbind\n"); - if (fsg->common->fsg == fsg) { - fsg->common->new_fsg = NULL; - raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE); - /* FIXME: make interruptible or killable somehow? */ - wait_event(common->fsg_wait, common->fsg != fsg); - } - - fsg_common_put(common); - usb_free_all_descriptors(&fsg->function); - kfree(fsg); -} - static int fsg_bind(struct usb_configuration *c, struct usb_function *f) { struct fsg_dev *fsg = fsg_from_func(f); @@ -2887,6 +3103,19 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f) struct usb_ep *ep; unsigned max_burst; int ret; + struct fsg_opts *opts; + + opts = fsg_opts_from_func_inst(f->fi); + if (!opts->no_configfs) { + ret = fsg_common_set_cdev(fsg->common, c->cdev, + fsg->common->can_stall); + if (ret) + return ret; + fsg_common_set_inquiry_string(fsg->common, 0, 0); + ret = fsg_common_run_thread(fsg->common); + if (ret) + return ret; + } fsg->gadget = gadget; @@ -2939,95 +3168,472 @@ autoconf_fail: return -ENOTSUPP; } -/****************************** ADD FUNCTION ******************************/ +/****************************** ALLOCATE FUNCTION *************************/ -static struct usb_gadget_strings *fsg_strings_array[] = { - &fsg_stringtab, +static void fsg_unbind(struct usb_configuration *c, struct usb_function *f) +{ + struct fsg_dev *fsg = fsg_from_func(f); + struct fsg_common *common = fsg->common; + + DBG(fsg, "unbind\n"); + if (fsg->common->fsg == fsg) { + fsg->common->new_fsg = NULL; + raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE); + /* FIXME: make interruptible or killable somehow? */ + wait_event(common->fsg_wait, common->fsg != fsg); + } + + usb_free_all_descriptors(&fsg->function); +} + +static inline struct fsg_lun_opts *to_fsg_lun_opts(struct config_item *item) +{ + return container_of(to_config_group(item), struct fsg_lun_opts, group); +} + +static inline struct fsg_opts *to_fsg_opts(struct config_item *item) +{ + return container_of(to_config_group(item), struct fsg_opts, + func_inst.group); +} + +CONFIGFS_ATTR_STRUCT(fsg_lun_opts); +CONFIGFS_ATTR_OPS(fsg_lun_opts); + +static void fsg_lun_attr_release(struct config_item *item) +{ + struct fsg_lun_opts *lun_opts; + + lun_opts = to_fsg_lun_opts(item); + kfree(lun_opts); +} + +static struct configfs_item_operations fsg_lun_item_ops = { + .release = fsg_lun_attr_release, + .show_attribute = fsg_lun_opts_attr_show, + .store_attribute = fsg_lun_opts_attr_store, +}; + +static ssize_t fsg_lun_opts_file_show(struct fsg_lun_opts *opts, char *page) +{ + struct fsg_opts *fsg_opts; + + fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent); + + return fsg_show_file(opts->lun, &fsg_opts->common->filesem, page); +} + +static ssize_t fsg_lun_opts_file_store(struct fsg_lun_opts *opts, + const char *page, size_t len) +{ + struct fsg_opts *fsg_opts; + + fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent); + + return fsg_store_file(opts->lun, &fsg_opts->common->filesem, page, len); +} + +static struct fsg_lun_opts_attribute fsg_lun_opts_file = + __CONFIGFS_ATTR(file, S_IRUGO | S_IWUSR, fsg_lun_opts_file_show, + fsg_lun_opts_file_store); + +static ssize_t fsg_lun_opts_ro_show(struct fsg_lun_opts *opts, char *page) +{ + return fsg_show_ro(opts->lun, page); +} + +static ssize_t fsg_lun_opts_ro_store(struct fsg_lun_opts *opts, + const char *page, size_t len) +{ + struct fsg_opts *fsg_opts; + + fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent); + + return fsg_store_ro(opts->lun, &fsg_opts->common->filesem, page, len); +} + +static struct fsg_lun_opts_attribute fsg_lun_opts_ro = + __CONFIGFS_ATTR(ro, S_IRUGO | S_IWUSR, fsg_lun_opts_ro_show, + fsg_lun_opts_ro_store); + +static ssize_t fsg_lun_opts_removable_show(struct fsg_lun_opts *opts, + char *page) +{ + return fsg_show_removable(opts->lun, page); +} + +static ssize_t fsg_lun_opts_removable_store(struct fsg_lun_opts *opts, + const char *page, size_t len) +{ + return fsg_store_removable(opts->lun, page, len); +} + +static struct fsg_lun_opts_attribute fsg_lun_opts_removable = + __CONFIGFS_ATTR(removable, S_IRUGO | S_IWUSR, + fsg_lun_opts_removable_show, + fsg_lun_opts_removable_store); + +static ssize_t fsg_lun_opts_cdrom_show(struct fsg_lun_opts *opts, char *page) +{ + return fsg_show_cdrom(opts->lun, page); +} + +static ssize_t fsg_lun_opts_cdrom_store(struct fsg_lun_opts *opts, + const char *page, size_t len) +{ + struct fsg_opts *fsg_opts; + + fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent); + + return fsg_store_cdrom(opts->lun, &fsg_opts->common->filesem, page, + len); +} + +static struct fsg_lun_opts_attribute fsg_lun_opts_cdrom = + __CONFIGFS_ATTR(cdrom, S_IRUGO | S_IWUSR, fsg_lun_opts_cdrom_show, + fsg_lun_opts_cdrom_store); + +static ssize_t fsg_lun_opts_nofua_show(struct fsg_lun_opts *opts, char *page) +{ + return fsg_show_nofua(opts->lun, page); +} + +static ssize_t fsg_lun_opts_nofua_store(struct fsg_lun_opts *opts, + const char *page, size_t len) +{ + return fsg_store_nofua(opts->lun, page, len); +} + +static struct fsg_lun_opts_attribute fsg_lun_opts_nofua = + __CONFIGFS_ATTR(nofua, S_IRUGO | S_IWUSR, fsg_lun_opts_nofua_show, + fsg_lun_opts_nofua_store); + +static struct configfs_attribute *fsg_lun_attrs[] = { + &fsg_lun_opts_file.attr, + &fsg_lun_opts_ro.attr, + &fsg_lun_opts_removable.attr, + &fsg_lun_opts_cdrom.attr, + &fsg_lun_opts_nofua.attr, NULL, }; -static int fsg_bind_config(struct usb_composite_dev *cdev, - struct usb_configuration *c, - struct fsg_common *common) +static struct config_item_type fsg_lun_type = { + .ct_item_ops = &fsg_lun_item_ops, + .ct_attrs = fsg_lun_attrs, + .ct_owner = THIS_MODULE, +}; + +static struct config_group *fsg_lun_make(struct config_group *group, + const char *name) { - struct fsg_dev *fsg; + struct fsg_lun_opts *opts; + struct fsg_opts *fsg_opts; + struct fsg_lun_config config; + char *num_str; + u8 num; + int ret; + + num_str = strchr(name, '.'); + if (!num_str) { + pr_err("Unable to locate . in LUN.NUMBER\n"); + return ERR_PTR(-EINVAL); + } + num_str++; + + ret = kstrtou8(num_str, 0, &num); + if (ret) + return ERR_PTR(ret); + + fsg_opts = to_fsg_opts(&group->cg_item); + if (num >= FSG_MAX_LUNS) + return ERR_PTR(-ERANGE); + + mutex_lock(&fsg_opts->lock); + if (fsg_opts->refcnt || fsg_opts->common->luns[num]) { + ret = -EBUSY; + goto out; + } + + opts = kzalloc(sizeof(*opts), GFP_KERNEL); + if (!opts) { + ret = -ENOMEM; + goto out; + } + + memset(&config, 0, sizeof(config)); + config.removable = true; + + ret = fsg_common_create_lun(fsg_opts->common, &config, num, name, + (const char **)&group->cg_item.ci_name); + if (ret) { + kfree(opts); + goto out; + } + opts->lun = fsg_opts->common->luns[num]; + opts->lun_id = num; + mutex_unlock(&fsg_opts->lock); + + config_group_init_type_name(&opts->group, name, &fsg_lun_type); + + return &opts->group; +out: + mutex_unlock(&fsg_opts->lock); + return ERR_PTR(ret); +} + +static void fsg_lun_drop(struct config_group *group, struct config_item *item) +{ + struct fsg_lun_opts *lun_opts; + struct fsg_opts *fsg_opts; + + lun_opts = to_fsg_lun_opts(item); + fsg_opts = to_fsg_opts(&group->cg_item); + + mutex_lock(&fsg_opts->lock); + if (fsg_opts->refcnt) { + struct config_item *gadget; + + gadget = group->cg_item.ci_parent->ci_parent; + unregister_gadget_item(gadget); + } + + fsg_common_remove_lun(lun_opts->lun, fsg_opts->common->sysfs); + fsg_opts->common->luns[lun_opts->lun_id] = NULL; + lun_opts->lun_id = 0; + mutex_unlock(&fsg_opts->lock); + + config_item_put(item); +} + +CONFIGFS_ATTR_STRUCT(fsg_opts); +CONFIGFS_ATTR_OPS(fsg_opts); + +static void fsg_attr_release(struct config_item *item) +{ + struct fsg_opts *opts = to_fsg_opts(item); + + usb_put_function_instance(&opts->func_inst); +} + +static struct configfs_item_operations fsg_item_ops = { + .release = fsg_attr_release, + .show_attribute = fsg_opts_attr_show, + .store_attribute = fsg_opts_attr_store, +}; + +static ssize_t fsg_opts_stall_show(struct fsg_opts *opts, char *page) +{ + int result; + + mutex_lock(&opts->lock); + result = sprintf(page, "%d", opts->common->can_stall); + mutex_unlock(&opts->lock); + + return result; +} + +static ssize_t fsg_opts_stall_store(struct fsg_opts *opts, const char *page, + size_t len) +{ + int ret; + bool stall; + + mutex_lock(&opts->lock); + + if (opts->refcnt) { + mutex_unlock(&opts->lock); + return -EBUSY; + } + + ret = strtobool(page, &stall); + if (!ret) { + opts->common->can_stall = stall; + ret = len; + } + + mutex_unlock(&opts->lock); + + return ret; +} + +static struct fsg_opts_attribute fsg_opts_stall = + __CONFIGFS_ATTR(stall, S_IRUGO | S_IWUSR, fsg_opts_stall_show, + fsg_opts_stall_store); + +#ifdef CONFIG_USB_GADGET_DEBUG_FILES +static ssize_t fsg_opts_num_buffers_show(struct fsg_opts *opts, char *page) +{ + int result; + + mutex_lock(&opts->lock); + result = sprintf(page, "%d", opts->common->fsg_num_buffers); + mutex_unlock(&opts->lock); + + return result; +} + +static ssize_t fsg_opts_num_buffers_store(struct fsg_opts *opts, + const char *page, size_t len) +{ + int ret; + u8 num; + + mutex_lock(&opts->lock); + if (opts->refcnt) { + ret = -EBUSY; + goto end; + } + ret = kstrtou8(page, 0, &num); + if (ret) + goto end; + + ret = fsg_num_buffers_validate(num); + if (ret) + goto end; + + fsg_common_set_num_buffers(opts->common, num); + ret = len; + +end: + mutex_unlock(&opts->lock); + return ret; +} + +static struct fsg_opts_attribute fsg_opts_num_buffers = + __CONFIGFS_ATTR(num_buffers, S_IRUGO | S_IWUSR, + fsg_opts_num_buffers_show, + fsg_opts_num_buffers_store); + +#endif + +static struct configfs_attribute *fsg_attrs[] = { + &fsg_opts_stall.attr, +#ifdef CONFIG_USB_GADGET_DEBUG_FILES + &fsg_opts_num_buffers.attr, +#endif + NULL, +}; + +static struct configfs_group_operations fsg_group_ops = { + .make_group = fsg_lun_make, + .drop_item = fsg_lun_drop, +}; + +static struct config_item_type fsg_func_type = { + .ct_item_ops = &fsg_item_ops, + .ct_group_ops = &fsg_group_ops, + .ct_attrs = fsg_attrs, + .ct_owner = THIS_MODULE, +}; + +static void fsg_free_inst(struct usb_function_instance *fi) +{ + struct fsg_opts *opts; + + opts = fsg_opts_from_func_inst(fi); + fsg_common_put(opts->common); + kfree(opts); +} + +static struct usb_function_instance *fsg_alloc_inst(void) +{ + struct fsg_opts *opts; + struct fsg_lun_config config; int rc; - fsg = kzalloc(sizeof *fsg, GFP_KERNEL); + opts = kzalloc(sizeof(*opts), GFP_KERNEL); + if (!opts) + return ERR_PTR(-ENOMEM); + mutex_init(&opts->lock); + opts->func_inst.free_func_inst = fsg_free_inst; + opts->common = fsg_common_setup(opts->common); + if (IS_ERR(opts->common)) { + rc = PTR_ERR(opts->common); + goto release_opts; + } + rc = fsg_common_set_nluns(opts->common, FSG_MAX_LUNS); + if (rc) + goto release_opts; + + rc = fsg_common_set_num_buffers(opts->common, + CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS); + if (rc) + goto release_luns; + + pr_info(FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n"); + + memset(&config, 0, sizeof(config)); + config.removable = true; + rc = fsg_common_create_lun(opts->common, &config, 0, "lun.0", + (const char **)&opts->func_inst.group.cg_item.ci_name); + opts->lun0.lun = opts->common->luns[0]; + opts->lun0.lun_id = 0; + config_group_init_type_name(&opts->lun0.group, "lun.0", &fsg_lun_type); + opts->default_groups[0] = &opts->lun0.group; + opts->func_inst.group.default_groups = opts->default_groups; + + config_group_init_type_name(&opts->func_inst.group, "", &fsg_func_type); + + return &opts->func_inst; + +release_luns: + kfree(opts->common->luns); +release_opts: + kfree(opts); + return ERR_PTR(rc); +} + +static void fsg_free(struct usb_function *f) +{ + struct fsg_dev *fsg; + struct fsg_opts *opts; + + fsg = container_of(f, struct fsg_dev, function); + opts = container_of(f->fi, struct fsg_opts, func_inst); + + mutex_lock(&opts->lock); + opts->refcnt--; + mutex_unlock(&opts->lock); + + kfree(fsg); +} + +static struct usb_function *fsg_alloc(struct usb_function_instance *fi) +{ + struct fsg_opts *opts = fsg_opts_from_func_inst(fi); + struct fsg_common *common = opts->common; + struct fsg_dev *fsg; + + fsg = kzalloc(sizeof(*fsg), GFP_KERNEL); if (unlikely(!fsg)) - return -ENOMEM; + return ERR_PTR(-ENOMEM); - fsg->function.name = FSG_DRIVER_DESC; - fsg->function.strings = fsg_strings_array; - fsg->function.bind = fsg_bind; - fsg->function.unbind = fsg_unbind; - fsg->function.setup = fsg_setup; - fsg->function.set_alt = fsg_set_alt; - fsg->function.disable = fsg_disable; + mutex_lock(&opts->lock); + opts->refcnt++; + mutex_unlock(&opts->lock); + fsg->function.name = FSG_DRIVER_DESC; + fsg->function.bind = fsg_bind; + fsg->function.unbind = fsg_unbind; + fsg->function.setup = fsg_setup; + fsg->function.set_alt = fsg_set_alt; + fsg->function.disable = fsg_disable; + fsg->function.free_func = fsg_free; fsg->common = common; - /* - * Our caller holds a reference to common structure so we - * don't have to be worry about it being freed until we return - * from this function. So instead of incrementing counter now - * and decrement in error recovery we increment it only when - * call to usb_add_function() was successful. - */ - rc = usb_add_function(c, &fsg->function); - if (unlikely(rc)) - kfree(fsg); - else - fsg_common_get(fsg->common); - return rc; + return &fsg->function; } +DECLARE_USB_FUNCTION_INIT(mass_storage, fsg_alloc_inst, fsg_alloc); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Michal Nazarewicz"); /************************* Module parameters *************************/ -struct fsg_module_parameters { - char *file[FSG_MAX_LUNS]; - bool ro[FSG_MAX_LUNS]; - bool removable[FSG_MAX_LUNS]; - bool cdrom[FSG_MAX_LUNS]; - bool nofua[FSG_MAX_LUNS]; - - unsigned int file_count, ro_count, removable_count, cdrom_count; - unsigned int nofua_count; - unsigned int luns; /* nluns */ - bool stall; /* can_stall */ -}; -#define _FSG_MODULE_PARAM_ARRAY(prefix, params, name, type, desc) \ - module_param_array_named(prefix ## name, params.name, type, \ - &prefix ## params.name ## _count, \ - S_IRUGO); \ - MODULE_PARM_DESC(prefix ## name, desc) - -#define _FSG_MODULE_PARAM(prefix, params, name, type, desc) \ - module_param_named(prefix ## name, params.name, type, \ - S_IRUGO); \ - MODULE_PARM_DESC(prefix ## name, desc) - -#define FSG_MODULE_PARAMETERS(prefix, params) \ - _FSG_MODULE_PARAM_ARRAY(prefix, params, file, charp, \ - "names of backing files or devices"); \ - _FSG_MODULE_PARAM_ARRAY(prefix, params, ro, bool, \ - "true to force read-only"); \ - _FSG_MODULE_PARAM_ARRAY(prefix, params, removable, bool, \ - "true to simulate removable media"); \ - _FSG_MODULE_PARAM_ARRAY(prefix, params, cdrom, bool, \ - "true to simulate CD-ROM instead of disk"); \ - _FSG_MODULE_PARAM_ARRAY(prefix, params, nofua, bool, \ - "true to ignore SCSI WRITE(10,12) FUA bit"); \ - _FSG_MODULE_PARAM(prefix, params, luns, uint, \ - "number of LUNs"); \ - _FSG_MODULE_PARAM(prefix, params, stall, bool, \ - "false to prevent bulk stalls") - -static void -fsg_config_from_params(struct fsg_config *cfg, - const struct fsg_module_parameters *params) +void fsg_config_from_params(struct fsg_config *cfg, + const struct fsg_module_parameters *params, + unsigned int fsg_num_buffers) { struct fsg_lun_config *lun; unsigned i; @@ -3055,19 +3661,7 @@ fsg_config_from_params(struct fsg_config *cfg, /* Finalise */ cfg->can_stall = params->stall; + cfg->fsg_num_buffers = fsg_num_buffers; } +EXPORT_SYMBOL_GPL(fsg_config_from_params); -static inline struct fsg_common * -fsg_common_from_params(struct fsg_common *common, - struct usb_composite_dev *cdev, - const struct fsg_module_parameters *params) - __attribute__((unused)); -static inline struct fsg_common * -fsg_common_from_params(struct fsg_common *common, - struct usb_composite_dev *cdev, - const struct fsg_module_parameters *params) -{ - struct fsg_config cfg; - fsg_config_from_params(&cfg, params); - return fsg_common_init(common, cdev, &cfg); -} diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h new file mode 100644 index 000000000000..b4866fcef30b --- /dev/null +++ b/drivers/usb/gadget/f_mass_storage.h @@ -0,0 +1,166 @@ +#ifndef USB_F_MASS_STORAGE_H +#define USB_F_MASS_STORAGE_H + +#include <linux/usb/composite.h> +#include "storage_common.h" + +struct fsg_module_parameters { + char *file[FSG_MAX_LUNS]; + bool ro[FSG_MAX_LUNS]; + bool removable[FSG_MAX_LUNS]; + bool cdrom[FSG_MAX_LUNS]; + bool nofua[FSG_MAX_LUNS]; + + unsigned int file_count, ro_count, removable_count, cdrom_count; + unsigned int nofua_count; + unsigned int luns; /* nluns */ + bool stall; /* can_stall */ +}; + +#define _FSG_MODULE_PARAM_ARRAY(prefix, params, name, type, desc) \ + module_param_array_named(prefix ## name, params.name, type, \ + &prefix ## params.name ## _count, \ + S_IRUGO); \ + MODULE_PARM_DESC(prefix ## name, desc) + +#define _FSG_MODULE_PARAM(prefix, params, name, type, desc) \ + module_param_named(prefix ## name, params.name, type, \ + S_IRUGO); \ + MODULE_PARM_DESC(prefix ## name, desc) + +#define __FSG_MODULE_PARAMETERS(prefix, params) \ + _FSG_MODULE_PARAM_ARRAY(prefix, params, file, charp, \ + "names of backing files or devices"); \ + _FSG_MODULE_PARAM_ARRAY(prefix, params, ro, bool, \ + "true to force read-only"); \ + _FSG_MODULE_PARAM_ARRAY(prefix, params, removable, bool, \ + "true to simulate removable media"); \ + _FSG_MODULE_PARAM_ARRAY(prefix, params, cdrom, bool, \ + "true to simulate CD-ROM instead of disk"); \ + _FSG_MODULE_PARAM_ARRAY(prefix, params, nofua, bool, \ + "true to ignore SCSI WRITE(10,12) FUA bit"); \ + _FSG_MODULE_PARAM(prefix, params, luns, uint, \ + "number of LUNs"); \ + _FSG_MODULE_PARAM(prefix, params, stall, bool, \ + "false to prevent bulk stalls") + +#ifdef CONFIG_USB_GADGET_DEBUG_FILES + +#define FSG_MODULE_PARAMETERS(prefix, params) \ + __FSG_MODULE_PARAMETERS(prefix, params); \ + module_param_named(num_buffers, fsg_num_buffers, uint, S_IRUGO);\ + MODULE_PARM_DESC(num_buffers, "Number of pipeline buffers") +#else + +#define FSG_MODULE_PARAMETERS(prefix, params) \ + __FSG_MODULE_PARAMETERS(prefix, params) + +#endif + +struct fsg_common; + +/* FSF callback functions */ +struct fsg_operations { + /* + * Callback function to call when thread exits. If no + * callback is set or it returns value lower then zero MSF + * will force eject all LUNs it operates on (including those + * marked as non-removable or with prevent_medium_removal flag + * set). + */ + int (*thread_exits)(struct fsg_common *common); +}; + +struct fsg_lun_opts { + struct config_group group; + struct fsg_lun *lun; + int lun_id; +}; + +struct fsg_opts { + struct fsg_common *common; + struct usb_function_instance func_inst; + struct fsg_lun_opts lun0; + struct config_group *default_groups[2]; + bool no_configfs; /* for legacy gadgets */ + + /* + * Read/write access to configfs attributes is handled by configfs. + * + * This is to protect the data from concurrent access by read/write + * and create symlink/remove symlink. + */ + struct mutex lock; + int refcnt; +}; + +struct fsg_lun_config { + const char *filename; + char ro; + char removable; + char cdrom; + char nofua; +}; + +struct fsg_config { + unsigned nluns; + struct fsg_lun_config luns[FSG_MAX_LUNS]; + + /* Callback functions. */ + const struct fsg_operations *ops; + /* Gadget's private data. */ + void *private_data; + + const char *vendor_name; /* 8 characters or less */ + const char *product_name; /* 16 characters or less */ + + char can_stall; + unsigned int fsg_num_buffers; +}; + +static inline struct fsg_opts * +fsg_opts_from_func_inst(const struct usb_function_instance *fi) +{ + return container_of(fi, struct fsg_opts, func_inst); +} + +void fsg_common_get(struct fsg_common *common); + +void fsg_common_put(struct fsg_common *common); + +void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs); + +int fsg_common_set_num_buffers(struct fsg_common *common, unsigned int n); + +void fsg_common_free_buffers(struct fsg_common *common); + +int fsg_common_set_cdev(struct fsg_common *common, + struct usb_composite_dev *cdev, bool can_stall); + +void fsg_common_remove_lun(struct fsg_lun *lun, bool sysfs); + +void fsg_common_remove_luns(struct fsg_common *common); + +void fsg_common_free_luns(struct fsg_common *common); + +int fsg_common_set_nluns(struct fsg_common *common, int nluns); + +void fsg_common_set_ops(struct fsg_common *common, + const struct fsg_operations *ops); + +int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg, + unsigned int id, const char *name, + const char **name_pfx); + +int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg); + +void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn, + const char *pn); + +int fsg_common_run_thread(struct fsg_common *common); + +void fsg_config_from_params(struct fsg_config *cfg, + const struct fsg_module_parameters *params, + unsigned int fsg_num_buffers); + +#endif /* USB_F_MASS_STORAGE_H */ diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index 5327c82472ed..2344efe4f4ce 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -76,7 +76,9 @@ struct gfs_ffs_obj { USB_GADGET_COMPOSITE_OPTIONS(); +#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS USB_ETHERNET_MODULE_PARAMETERS(); +#endif static struct usb_device_descriptor gfs_dev_desc = { .bLength = sizeof gfs_dev_desc, diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index c64deb9e3d62..f82768015715 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -1165,7 +1165,7 @@ static int udc_proc_read(struct seq_file *m, void *v) s = "invalid"; break; default: s = "?"; break; - }; s; }), + } s; }), (tmp & EPxSTATUS_TOGGLE) ? "data1" : "data0", (tmp & EPxSTATUS_SUSPEND) ? " suspend" : "", (tmp & EPxSTATUS_FIFO_DISABLE) ? " disable" : "", @@ -1701,7 +1701,6 @@ static void goku_remove(struct pci_dev *pdev) if (dev->enabled) pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); dev->regs = NULL; INFO(dev, "unbind\n"); diff --git a/drivers/usb/gadget/mass_storage.c b/drivers/usb/gadget/mass_storage.c index 080e577773d5..8e27a8c96444 100644 --- a/drivers/usb/gadget/mass_storage.c +++ b/drivers/usb/gadget/mass_storage.c @@ -37,16 +37,16 @@ #define DRIVER_DESC "Mass Storage Gadget" #define DRIVER_VERSION "2009/09/11" -/*-------------------------------------------------------------------------*/ - /* - * kbuild is not very cooperative with respect to linking separately - * compiled library objects into one module. So for now we won't use - * separate compilation ... ensuring init/exit sections work to shrink - * the runtime footprint, and giving us at least some parts of what - * a "gcc --combine ... part1.c part2.c part3.c ... " build would. + * Thanks to NetChip Technologies for donating this product ID. + * + * DO NOT REUSE THESE IDs with any other driver!! Ever!! + * Instead: allocate your own, using normal USB-IF procedures. */ -#include "f_mass_storage.c" +#define FSG_VENDOR_ID 0x0525 /* NetChip */ +#define FSG_PRODUCT_ID 0xa4a5 /* Linux-USB File-backed Storage Gadget */ + +#include "f_mass_storage.h" /*-------------------------------------------------------------------------*/ USB_GADGET_COMPOSITE_OPTIONS(); @@ -97,11 +97,28 @@ static struct usb_gadget_strings *dev_strings[] = { NULL, }; +static struct usb_function_instance *fi_msg; +static struct usb_function *f_msg; + /****************************** Configurations ******************************/ static struct fsg_module_parameters mod_data = { .stall = 1 }; +#ifdef CONFIG_USB_GADGET_DEBUG_FILES + +static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS; + +#else + +/* + * Number of buffers we will use. + * 2 is usually enough for good buffering pipeline + */ +#define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS + +#endif /* CONFIG_USB_GADGET_DEBUG_FILES */ + FSG_MODULE_PARAMETERS(/* no prefix */, mod_data); static unsigned long msg_registered; @@ -115,13 +132,7 @@ static int msg_thread_exits(struct fsg_common *common) static int __init msg_do_config(struct usb_configuration *c) { - static const struct fsg_operations ops = { - .thread_exits = msg_thread_exits, - }; - static struct fsg_common common; - - struct fsg_common *retp; - struct fsg_config config; + struct fsg_opts *opts; int ret; if (gadget_is_otg(c->cdev->gadget)) { @@ -129,15 +140,24 @@ static int __init msg_do_config(struct usb_configuration *c) c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - fsg_config_from_params(&config, &mod_data); - config.ops = &ops; + opts = fsg_opts_from_func_inst(fi_msg); + + f_msg = usb_get_function(fi_msg); + if (IS_ERR(f_msg)) + return PTR_ERR(f_msg); + + ret = fsg_common_run_thread(opts->common); + if (ret) + goto put_func; + + ret = usb_add_function(c, f_msg); + if (ret) + goto put_func; - retp = fsg_common_init(&common, c->cdev, &config); - if (IS_ERR(retp)) - return PTR_ERR(retp); + return 0; - ret = fsg_bind_config(c->cdev, c, &common); - fsg_common_put(&common); +put_func: + usb_put_function(f_msg); return ret; } @@ -152,23 +172,79 @@ static struct usb_configuration msg_config_driver = { static int __init msg_bind(struct usb_composite_dev *cdev) { + static const struct fsg_operations ops = { + .thread_exits = msg_thread_exits, + }; + struct fsg_opts *opts; + struct fsg_config config; int status; + fi_msg = usb_get_function_instance("mass_storage"); + if (IS_ERR(fi_msg)) + return PTR_ERR(fi_msg); + + fsg_config_from_params(&config, &mod_data, fsg_num_buffers); + opts = fsg_opts_from_func_inst(fi_msg); + + opts->no_configfs = true; + status = fsg_common_set_num_buffers(opts->common, fsg_num_buffers); + if (status) + goto fail; + + status = fsg_common_set_nluns(opts->common, config.nluns); + if (status) + goto fail_set_nluns; + + fsg_common_set_ops(opts->common, &ops); + + status = fsg_common_set_cdev(opts->common, cdev, config.can_stall); + if (status) + goto fail_set_cdev; + + fsg_common_set_sysfs(opts->common, true); + status = fsg_common_create_luns(opts->common, &config); + if (status) + goto fail_set_cdev; + + fsg_common_set_inquiry_string(opts->common, config.vendor_name, + config.product_name); + status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) - return status; + goto fail_string_ids; msg_device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; status = usb_add_config(cdev, &msg_config_driver, msg_do_config); if (status < 0) - return status; + goto fail_string_ids; + usb_composite_overwrite_options(cdev, &coverwrite); dev_info(&cdev->gadget->dev, DRIVER_DESC ", version: " DRIVER_VERSION "\n"); set_bit(0, &msg_registered); return 0; + +fail_string_ids: + fsg_common_remove_luns(opts->common); +fail_set_cdev: + fsg_common_free_luns(opts->common); +fail_set_nluns: + fsg_common_free_buffers(opts->common); +fail: + usb_put_function_instance(fi_msg); + return status; } +static int msg_unbind(struct usb_composite_dev *cdev) +{ + if (!IS_ERR(f_msg)) + usb_put_function(f_msg); + + if (!IS_ERR(fi_msg)) + usb_put_function_instance(fi_msg); + + return 0; +} /****************************** Some noise ******************************/ @@ -179,6 +255,7 @@ static __refdata struct usb_composite_driver msg_driver = { .needs_serial = 1, .strings = dev_strings, .bind = msg_bind, + .unbind = msg_unbind, }; MODULE_DESCRIPTION(DRIVER_DESC); diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c index 23393254a8a3..4fdaa54a2a2a 100644 --- a/drivers/usb/gadget/multi.c +++ b/drivers/usb/gadget/multi.c @@ -15,6 +15,7 @@ #include <linux/kernel.h> #include <linux/module.h> +#include <linux/netdevice.h> #include "u_serial.h" #if defined USB_ETH_RNDIS @@ -32,22 +33,11 @@ MODULE_AUTHOR("Michal Nazarewicz"); MODULE_LICENSE("GPL"); -/***************************** All the files... *****************************/ +#include "f_mass_storage.h" -/* - * kbuild is not very cooperative with respect to linking separately - * compiled library objects into one module. So for now we won't use - * separate compilation ... ensuring init/exit sections work to shrink - * the runtime footprint, and giving us at least some parts of what - * a "gcc --combine ... part1.c part2.c part3.c ... " build would. - */ -#include "f_mass_storage.c" - -#define USBF_ECM_INCLUDED -#include "f_ecm.c" +#include "u_ecm.h" #ifdef USB_ETH_RNDIS -# define USB_FRNDIS_INCLUDED -# include "f_rndis.c" +# include "u_rndis.h" # include "rndis.h" #endif #include "u_ether.h" @@ -132,22 +122,36 @@ static struct usb_gadget_strings *dev_strings[] = { /****************************** Configurations ******************************/ static struct fsg_module_parameters fsg_mod_data = { .stall = 1 }; -FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data); +#ifdef CONFIG_USB_GADGET_DEBUG_FILES + +static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS; -static struct fsg_common fsg_common; +#else + +/* + * Number of buffers we will use. + * 2 is usually enough for good buffering pipeline + */ +#define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS -static u8 host_mac[ETH_ALEN]; +#endif /* CONFIG_USB_DEBUG */ + +FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data); static struct usb_function_instance *fi_acm; -static struct eth_dev *the_dev; +static struct usb_function_instance *fi_msg; /********** RNDIS **********/ #ifdef USB_ETH_RNDIS +static struct usb_function_instance *fi_rndis; static struct usb_function *f_acm_rndis; +static struct usb_function *f_rndis; +static struct usb_function *f_msg_rndis; static __init int rndis_do_config(struct usb_configuration *c) { + struct fsg_opts *fsg_opts; int ret; if (gadget_is_otg(c->cdev->gadget)) { @@ -155,27 +159,50 @@ static __init int rndis_do_config(struct usb_configuration *c) c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - ret = rndis_bind_config(c, host_mac, the_dev); + f_rndis = usb_get_function(fi_rndis); + if (IS_ERR(f_rndis)) + return PTR_ERR(f_rndis); + + ret = usb_add_function(c, f_rndis); if (ret < 0) - return ret; + goto err_func_rndis; f_acm_rndis = usb_get_function(fi_acm); - if (IS_ERR(f_acm_rndis)) - return PTR_ERR(f_acm_rndis); + if (IS_ERR(f_acm_rndis)) { + ret = PTR_ERR(f_acm_rndis); + goto err_func_acm; + } ret = usb_add_function(c, f_acm_rndis); if (ret) goto err_conf; - ret = fsg_bind_config(c->cdev, c, &fsg_common); - if (ret < 0) + f_msg_rndis = usb_get_function(fi_msg); + if (IS_ERR(f_msg_rndis)) { + ret = PTR_ERR(f_msg_rndis); goto err_fsg; + } + + fsg_opts = fsg_opts_from_func_inst(fi_msg); + ret = fsg_common_run_thread(fsg_opts->common); + if (ret) + goto err_run; + + ret = usb_add_function(c, f_msg_rndis); + if (ret) + goto err_run; return 0; +err_run: + usb_put_function(f_msg_rndis); err_fsg: usb_remove_function(c, f_acm_rndis); err_conf: usb_put_function(f_acm_rndis); +err_func_acm: + usb_remove_function(c, f_rndis); +err_func_rndis: + usb_put_function(f_rndis); return ret; } @@ -205,10 +232,14 @@ static __ref int rndis_config_register(struct usb_composite_dev *cdev) /********** CDC ECM **********/ #ifdef CONFIG_USB_G_MULTI_CDC +static struct usb_function_instance *fi_ecm; static struct usb_function *f_acm_multi; +static struct usb_function *f_ecm; +static struct usb_function *f_msg_multi; static __init int cdc_do_config(struct usb_configuration *c) { + struct fsg_opts *fsg_opts; int ret; if (gadget_is_otg(c->cdev->gadget)) { @@ -216,28 +247,51 @@ static __init int cdc_do_config(struct usb_configuration *c) c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - ret = ecm_bind_config(c, host_mac, the_dev); + f_ecm = usb_get_function(fi_ecm); + if (IS_ERR(f_ecm)) + return PTR_ERR(f_ecm); + + ret = usb_add_function(c, f_ecm); if (ret < 0) - return ret; + goto err_func_ecm; /* implicit port_num is zero */ f_acm_multi = usb_get_function(fi_acm); - if (IS_ERR(f_acm_multi)) - return PTR_ERR(f_acm_multi); + if (IS_ERR(f_acm_multi)) { + ret = PTR_ERR(f_acm_multi); + goto err_func_acm; + } ret = usb_add_function(c, f_acm_multi); if (ret) goto err_conf; - ret = fsg_bind_config(c->cdev, c, &fsg_common); - if (ret < 0) + f_msg_multi = usb_get_function(fi_msg); + if (IS_ERR(f_msg_multi)) { + ret = PTR_ERR(f_msg_multi); goto err_fsg; + } + + fsg_opts = fsg_opts_from_func_inst(fi_msg); + ret = fsg_common_run_thread(fsg_opts->common); + if (ret) + goto err_run; + + ret = usb_add_function(c, f_msg_multi); + if (ret) + goto err_run; return 0; +err_run: + usb_put_function(f_msg_multi); err_fsg: usb_remove_function(c, f_acm_multi); err_conf: usb_put_function(f_acm_multi); +err_func_acm: + usb_remove_function(c, f_ecm); +err_func_ecm: + usb_put_function(f_ecm); return ret; } @@ -270,19 +324,67 @@ static __ref int cdc_config_register(struct usb_composite_dev *cdev) static int __ref multi_bind(struct usb_composite_dev *cdev) { struct usb_gadget *gadget = cdev->gadget; +#ifdef CONFIG_USB_G_MULTI_CDC + struct f_ecm_opts *ecm_opts; +#endif +#ifdef USB_ETH_RNDIS + struct f_rndis_opts *rndis_opts; +#endif + struct fsg_opts *fsg_opts; + struct fsg_config config; int status; if (!can_support_ecm(cdev->gadget)) { dev_err(&gadget->dev, "controller '%s' not usable\n", - gadget->name); + gadget->name); return -EINVAL; } - /* set up network link layer */ - the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, host_mac, - qmult); - if (IS_ERR(the_dev)) - return PTR_ERR(the_dev); +#ifdef CONFIG_USB_G_MULTI_CDC + fi_ecm = usb_get_function_instance("ecm"); + if (IS_ERR(fi_ecm)) + return PTR_ERR(fi_ecm); + + ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst); + + gether_set_qmult(ecm_opts->net, qmult); + if (!gether_set_host_addr(ecm_opts->net, host_addr)) + pr_info("using host ethernet address: %s", host_addr); + if (!gether_set_dev_addr(ecm_opts->net, dev_addr)) + pr_info("using self ethernet address: %s", dev_addr); +#endif + +#ifdef USB_ETH_RNDIS + fi_rndis = usb_get_function_instance("rndis"); + if (IS_ERR(fi_rndis)) { + status = PTR_ERR(fi_rndis); + goto fail; + } + + rndis_opts = container_of(fi_rndis, struct f_rndis_opts, func_inst); + + gether_set_qmult(rndis_opts->net, qmult); + if (!gether_set_host_addr(rndis_opts->net, host_addr)) + pr_info("using host ethernet address: %s", host_addr); + if (!gether_set_dev_addr(rndis_opts->net, dev_addr)) + pr_info("using self ethernet address: %s", dev_addr); +#endif + +#if (defined CONFIG_USB_G_MULTI_CDC && defined USB_ETH_RNDIS) + /* + * If both ecm and rndis are selected then: + * 1) rndis borrows the net interface from ecm + * 2) since the interface is shared it must not be bound + * twice - in ecm's _and_ rndis' binds, so do it here. + */ + gether_set_gadget(ecm_opts->net, cdev->gadget); + status = gether_register_netdev(ecm_opts->net); + if (status) + goto fail0; + + rndis_borrow_net(fi_rndis, ecm_opts->net); + ecm_opts->bound = true; +#endif /* set up serial link layer */ fi_acm = usb_get_function_instance("acm"); @@ -292,57 +394,102 @@ static int __ref multi_bind(struct usb_composite_dev *cdev) } /* set up mass storage function */ - { - void *retp; - retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data); - if (IS_ERR(retp)) { - status = PTR_ERR(retp); - goto fail1; - } + fi_msg = usb_get_function_instance("mass_storage"); + if (IS_ERR(fi_msg)) { + status = PTR_ERR(fi_msg); + goto fail1; } + fsg_config_from_params(&config, &fsg_mod_data, fsg_num_buffers); + fsg_opts = fsg_opts_from_func_inst(fi_msg); + + fsg_opts->no_configfs = true; + status = fsg_common_set_num_buffers(fsg_opts->common, fsg_num_buffers); + if (status) + goto fail2; + + status = fsg_common_set_nluns(fsg_opts->common, config.nluns); + if (status) + goto fail_set_nluns; + + status = fsg_common_set_cdev(fsg_opts->common, cdev, config.can_stall); + if (status) + goto fail_set_cdev; + + fsg_common_set_sysfs(fsg_opts->common, true); + status = fsg_common_create_luns(fsg_opts->common, &config); + if (status) + goto fail_set_cdev; + + fsg_common_set_inquiry_string(fsg_opts->common, config.vendor_name, + config.product_name); /* allocate string IDs */ status = usb_string_ids_tab(cdev, strings_dev); if (unlikely(status < 0)) - goto fail2; + goto fail_string_ids; device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id; /* register configurations */ status = rndis_config_register(cdev); if (unlikely(status < 0)) - goto fail2; + goto fail_string_ids; status = cdc_config_register(cdev); if (unlikely(status < 0)) - goto fail2; + goto fail_string_ids; usb_composite_overwrite_options(cdev, &coverwrite); /* we're done */ dev_info(&gadget->dev, DRIVER_DESC "\n"); - fsg_common_put(&fsg_common); return 0; /* error recovery */ +fail_string_ids: + fsg_common_remove_luns(fsg_opts->common); +fail_set_cdev: + fsg_common_free_luns(fsg_opts->common); +fail_set_nluns: + fsg_common_free_buffers(fsg_opts->common); fail2: - fsg_common_put(&fsg_common); + usb_put_function_instance(fi_msg); fail1: usb_put_function_instance(fi_acm); fail0: - gether_cleanup(the_dev); +#ifdef USB_ETH_RNDIS + usb_put_function_instance(fi_rndis); +fail: +#endif +#ifdef CONFIG_USB_G_MULTI_CDC + usb_put_function_instance(fi_ecm); +#endif return status; } static int __exit multi_unbind(struct usb_composite_dev *cdev) { #ifdef CONFIG_USB_G_MULTI_CDC + usb_put_function(f_msg_multi); +#endif +#ifdef USB_ETH_RNDIS + usb_put_function(f_msg_rndis); +#endif + usb_put_function_instance(fi_msg); +#ifdef CONFIG_USB_G_MULTI_CDC usb_put_function(f_acm_multi); #endif #ifdef USB_ETH_RNDIS usb_put_function(f_acm_rndis); #endif usb_put_function_instance(fi_acm); - gether_cleanup(the_dev); +#ifdef USB_ETH_RNDIS + usb_put_function(f_rndis); + usb_put_function_instance(fi_rndis); +#endif +#ifdef CONFIG_USB_G_MULTI_CDC + usb_put_function(f_ecm); + usb_put_function_instance(fi_ecm); +#endif return 0; } diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c index 561b30efb8ee..234711eabea1 100644 --- a/drivers/usb/gadget/mv_u3d_core.c +++ b/drivers/usb/gadget/mv_u3d_core.c @@ -310,6 +310,7 @@ static struct mv_u3d_trb *mv_u3d_build_trb_one(struct mv_u3d_req *req, */ trb_hw = dma_pool_alloc(u3d->trb_pool, GFP_ATOMIC, dma); if (!trb_hw) { + kfree(trb); dev_err(u3d->dev, "%s, dma_pool_alloc fail\n", __func__); return NULL; @@ -454,6 +455,7 @@ static int mv_u3d_req_to_trb(struct mv_u3d_req *req) trb_hw = kcalloc(trb_num, sizeof(*trb_hw), GFP_ATOMIC); if (!trb_hw) { + kfree(trb); dev_err(u3d->dev, "%s, trb_hw alloc fail\n", __func__); return -ENOMEM; @@ -1936,7 +1938,7 @@ static int mv_u3d_probe(struct platform_device *dev) } u3d->irq = r->start; if (request_irq(u3d->irq, mv_u3d_irq, - IRQF_DISABLED | IRQF_SHARED, driver_name, u3d)) { + IRQF_SHARED, driver_name, u3d)) { u3d->irq = 0; dev_err(&dev->dev, "Request irq %d for u3d failed\n", u3d->irq); diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index 0781bff70015..fc852177c087 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -129,7 +129,7 @@ static char *type_string (u8 bmAttributes) case USB_ENDPOINT_XFER_BULK: return "bulk"; case USB_ENDPOINT_XFER_ISOC: return "iso"; case USB_ENDPOINT_XFER_INT: return "intr"; - }; + } return "control"; } #endif @@ -1630,7 +1630,7 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr, val = "intr"; break; default: val = "iso"; break; - }; val; }), + } val; }), usb_endpoint_maxp (d) & 0x1fff, ep->dma ? "dma" : "pio", ep->fifo_size ); @@ -2680,7 +2680,6 @@ static void net2280_remove (struct pci_dev *pdev) if (dev->enabled) pci_disable_device (pdev); device_remove_file (&pdev->dev, &dev_attr_registers); - pci_set_drvdata (pdev, NULL); INFO (dev, "unbind\n"); } diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c index 24174e1d1564..32d5e923750b 100644 --- a/drivers/usb/gadget/pch_udc.c +++ b/drivers/usb/gadget/pch_udc.c @@ -3080,7 +3080,6 @@ static void pch_udc_remove(struct pci_dev *pdev) if (dev->active) pci_disable_device(pdev); kfree(dev); - pci_set_drvdata(pdev, NULL); } #ifdef CONFIG_PM diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c index 9575085ded81..a3ad732bc812 100644 --- a/drivers/usb/gadget/rndis.c +++ b/drivers/usb/gadget/rndis.c @@ -1068,7 +1068,7 @@ static int rndis_proc_show(struct seq_file *m, void *v) s = "RNDIS_INITIALIZED"; break; case RNDIS_DATA_INITIALIZED: s = "RNDIS_DATA_INITIALIZED"; break; - }; s; }), + } s; }), param->medium, (param->media_state) ? 0 : param->speed*100, (param->media_state) ? "disconnected" : "connected", diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index a8a99e4748d5..9875d9c0823f 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -83,9 +83,12 @@ struct s3c_hsotg_req; * @dir_in: Set to true if this endpoint is of the IN direction, which * means that it is sending data to the Host. * @index: The index for the endpoint registers. + * @mc: Multi Count - number of transactions per microframe + * @interval - Interval for periodic endpoints * @name: The name array passed to the USB core. * @halted: Set if the endpoint has been halted. * @periodic: Set if this is a periodic ep, such as Interrupt + * @isochronous: Set if this is a isochronous ep * @sent_zlp: Set if we've sent a zero-length packet. * @total_data: The total number of data bytes done. * @fifo_size: The size of the FIFO (for periodic IN endpoints) @@ -121,9 +124,12 @@ struct s3c_hsotg_ep { unsigned char dir_in; unsigned char index; + unsigned char mc; + unsigned char interval; unsigned int halted:1; unsigned int periodic:1; + unsigned int isochronous:1; unsigned int sent_zlp:1; char name[10]; @@ -468,6 +474,7 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg, void *data; int can_write; int pkt_round; + int max_transfer; to_write -= (buf_pos - hs_ep->last_load); @@ -535,8 +542,10 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg, can_write *= 4; /* fifo size is in 32bit quantities. */ } - dev_dbg(hsotg->dev, "%s: GNPTXSTS=%08x, can=%d, to=%d, mps %d\n", - __func__, gnptxsts, can_write, to_write, hs_ep->ep.maxpacket); + max_transfer = hs_ep->ep.maxpacket * hs_ep->mc; + + dev_dbg(hsotg->dev, "%s: GNPTXSTS=%08x, can=%d, to=%d, max_transfer %d\n", + __func__, gnptxsts, can_write, to_write, max_transfer); /* * limit to 512 bytes of data, it seems at least on the non-periodic @@ -551,19 +560,21 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg, * the transfer to return that it did not run out of fifo space * doing it. */ - if (to_write > hs_ep->ep.maxpacket) { - to_write = hs_ep->ep.maxpacket; + if (to_write > max_transfer) { + to_write = max_transfer; - s3c_hsotg_en_gsint(hsotg, - periodic ? GINTSTS_PTxFEmp : - GINTSTS_NPTxFEmp); + /* it's needed only when we do not use dedicated fifos */ + if (!hsotg->dedicated_fifos) + s3c_hsotg_en_gsint(hsotg, + periodic ? GINTSTS_PTxFEmp : + GINTSTS_NPTxFEmp); } /* see if we can write data */ if (to_write > can_write) { to_write = can_write; - pkt_round = to_write % hs_ep->ep.maxpacket; + pkt_round = to_write % max_transfer; /* * Round the write down to an @@ -581,9 +592,11 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg, * is more room left. */ - s3c_hsotg_en_gsint(hsotg, - periodic ? GINTSTS_PTxFEmp : - GINTSTS_NPTxFEmp); + /* it's needed only when we do not use dedicated fifos */ + if (!hsotg->dedicated_fifos) + s3c_hsotg_en_gsint(hsotg, + periodic ? GINTSTS_PTxFEmp : + GINTSTS_NPTxFEmp); } dev_dbg(hsotg->dev, "write %d/%d, can_write %d, done %d\n", @@ -727,8 +740,16 @@ static void s3c_hsotg_start_req(struct s3c_hsotg *hsotg, else packets = 1; /* send one packet if length is zero. */ + if (hs_ep->isochronous && length > (hs_ep->mc * hs_ep->ep.maxpacket)) { + dev_err(hsotg->dev, "req length > maxpacket*mc\n"); + return; + } + if (dir_in && index != 0) - epsize = DxEPTSIZ_MC(1); + if (hs_ep->isochronous) + epsize = DxEPTSIZ_MC(packets); + else + epsize = DxEPTSIZ_MC(1); else epsize = 0; @@ -820,6 +841,9 @@ static void s3c_hsotg_start_req(struct s3c_hsotg *hsotg, dev_dbg(hsotg->dev, "%s: DxEPCTL=0x%08x\n", __func__, readl(hsotg->regs + epctrl_reg)); + + /* enable ep interrupts */ + s3c_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 1); } /** @@ -1091,6 +1115,7 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg, bool set = (ctrl->bRequest == USB_REQ_SET_FEATURE); struct s3c_hsotg_ep *ep; int ret; + bool halted; dev_dbg(hsotg->dev, "%s: %s_FEATURE\n", __func__, set ? "SET" : "CLEAR"); @@ -1105,6 +1130,8 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg, switch (le16_to_cpu(ctrl->wValue)) { case USB_ENDPOINT_HALT: + halted = ep->halted; + s3c_hsotg_ep_sethalt(&ep->ep, set); ret = s3c_hsotg_send_reply(hsotg, ep0, NULL, 0); @@ -1114,7 +1141,12 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg, return ret; } - if (!set) { + /* + * we have to complete all requests for ep if it was + * halted, and the halt was cleared by CLEAR_FEATURE + */ + + if (!set && halted) { /* * If we have request in progress, * then complete it @@ -1147,6 +1179,8 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg, return 1; } +static void s3c_hsotg_enqueue_setup(struct s3c_hsotg *hsotg); + /** * s3c_hsotg_process_control - process a control request * @hsotg: The device state @@ -1246,11 +1280,15 @@ static void s3c_hsotg_process_control(struct s3c_hsotg *hsotg, * don't believe we need to anything more to get the EP * to reply with a STALL packet */ + + /* + * complete won't be called, so we enqueue + * setup request here + */ + s3c_hsotg_enqueue_setup(hsotg); } } -static void s3c_hsotg_enqueue_setup(struct s3c_hsotg *hsotg); - /** * s3c_hsotg_complete_setup - completion of a setup transfer * @ep: The endpoint the request was on. @@ -1698,6 +1736,7 @@ static void s3c_hsotg_set_ep_maxpacket(struct s3c_hsotg *hsotg, struct s3c_hsotg_ep *hs_ep = &hsotg->eps[ep]; void __iomem *regs = hsotg->regs; u32 mpsval; + u32 mcval; u32 reg; if (ep == 0) { @@ -1705,15 +1744,19 @@ static void s3c_hsotg_set_ep_maxpacket(struct s3c_hsotg *hsotg, mpsval = s3c_hsotg_ep0_mps(mps); if (mpsval > 3) goto bad_mps; + hs_ep->ep.maxpacket = mps; + hs_ep->mc = 1; } else { - if (mps >= DxEPCTL_MPS_LIMIT+1) + mpsval = mps & DxEPCTL_MPS_MASK; + if (mpsval > 1024) goto bad_mps; - - mpsval = mps; + mcval = ((mps >> 11) & 0x3) + 1; + hs_ep->mc = mcval; + if (mcval > 3) + goto bad_mps; + hs_ep->ep.maxpacket = mpsval; } - hs_ep->ep.maxpacket = mps; - /* * update both the in and out endpoint controldir_ registers, even * if one of the directions may not be in use. @@ -1782,8 +1825,16 @@ static int s3c_hsotg_trytx(struct s3c_hsotg *hsotg, { struct s3c_hsotg_req *hs_req = hs_ep->req; - if (!hs_ep->dir_in || !hs_req) + if (!hs_ep->dir_in || !hs_req) { + /** + * if request is not enqueued, we disable interrupts + * for endpoints, excepting ep0 + */ + if (hs_ep->index != 0) + s3c_hsotg_ctrl_epint(hsotg, hs_ep->index, + hs_ep->dir_in, 0); return 0; + } if (hs_req->req.actual < hs_req->req.length) { dev_dbg(hsotg->dev, "trying to write more for ep%d\n", @@ -1887,8 +1938,10 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx, u32 epctl_reg = dir_in ? DIEPCTL(idx) : DOEPCTL(idx); u32 epsiz_reg = dir_in ? DIEPTSIZ(idx) : DOEPTSIZ(idx); u32 ints; + u32 ctrl; ints = readl(hsotg->regs + epint_reg); + ctrl = readl(hsotg->regs + epctl_reg); /* Clear endpoint interrupts */ writel(ints, hsotg->regs + epint_reg); @@ -1897,6 +1950,14 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx, __func__, idx, dir_in ? "in" : "out", ints); if (ints & DxEPINT_XferCompl) { + if (hs_ep->isochronous && hs_ep->interval == 1) { + if (ctrl & DxEPCTL_EOFrNum) + ctrl |= DxEPCTL_SetEvenFr; + else + ctrl |= DxEPCTL_SetOddFr; + writel(ctrl, hsotg->regs + epctl_reg); + } + dev_dbg(hsotg->dev, "%s: XferCompl: DxEPCTL=0x%08x, DxEPTSIZ=%08x\n", __func__, readl(hsotg->regs + epctl_reg), @@ -1963,7 +2024,7 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx, if (ints & DxEPINT_Back2BackSetup) dev_dbg(hsotg->dev, "%s: B2BSetup/INEPNakEff\n", __func__); - if (dir_in) { + if (dir_in && !hs_ep->isochronous) { /* not sure if this is important, but we'll clear it anyway */ if (ints & DIEPMSK_INTknTXFEmpMsk) { dev_dbg(hsotg->dev, "%s: ep%d: INTknTXFEmpMsk\n", @@ -2092,12 +2153,14 @@ static void kill_all_requests(struct s3c_hsotg *hsotg, } #define call_gadget(_hs, _entry) \ +do { \ if ((_hs)->gadget.speed != USB_SPEED_UNKNOWN && \ (_hs)->driver && (_hs)->driver->_entry) { \ spin_unlock(&_hs->lock); \ (_hs)->driver->_entry(&(_hs)->gadget); \ spin_lock(&_hs->lock); \ - } + } \ +} while (0) /** * s3c_hsotg_disconnect - disconnect service @@ -2241,15 +2304,19 @@ static void s3c_hsotg_core_init(struct s3c_hsotg *hsotg) GAHBCFG_HBstLen_Incr4, hsotg->regs + GAHBCFG); else - writel(GAHBCFG_GlblIntrEn, hsotg->regs + GAHBCFG); + writel(((hsotg->dedicated_fifos) ? (GAHBCFG_NPTxFEmpLvl | + GAHBCFG_PTxFEmpLvl) : 0) | + GAHBCFG_GlblIntrEn, + hsotg->regs + GAHBCFG); /* - * Enabling INTknTXFEmpMsk here seems to be a big mistake, we end - * up being flooded with interrupts if the host is polling the - * endpoint to try and read data. + * If INTknTXFEmpMsk is enabled, it's important to disable ep interrupts + * when we have no data to transfer. Otherwise we get being flooded by + * interrupts. */ - writel(((hsotg->dedicated_fifos) ? DIEPMSK_TxFIFOEmpty : 0) | + writel(((hsotg->dedicated_fifos) ? DIEPMSK_TxFIFOEmpty | + DIEPMSK_INTknTXFEmpMsk : 0) | DIEPMSK_EPDisbldMsk | DIEPMSK_XferComplMsk | DIEPMSK_TimeOUTMsk | DIEPMSK_AHBErrMsk | DIEPMSK_INTknEPMisMsk, @@ -2378,10 +2445,14 @@ irq_retry: if (gintsts & (GINTSTS_OEPInt | GINTSTS_IEPInt)) { u32 daint = readl(hsotg->regs + DAINT); - u32 daint_out = daint >> DAINT_OutEP_SHIFT; - u32 daint_in = daint & ~(daint_out << DAINT_OutEP_SHIFT); + u32 daintmsk = readl(hsotg->regs + DAINTMSK); + u32 daint_out, daint_in; int ep; + daint &= daintmsk; + daint_out = daint >> DAINT_OutEP_SHIFT; + daint_in = daint & ~(daint_out << DAINT_OutEP_SHIFT); + dev_dbg(hsotg->dev, "%s: daint=%08x\n", __func__, daint); for (ep = 0; ep < 15 && daint_out; ep++, daint_out >>= 1) { @@ -2577,16 +2648,25 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep, epctrl |= DxEPCTL_SNAK; /* update the endpoint state */ - hs_ep->ep.maxpacket = mps; + s3c_hsotg_set_ep_maxpacket(hsotg, hs_ep->index, mps); /* default, set to non-periodic */ + hs_ep->isochronous = 0; hs_ep->periodic = 0; + hs_ep->halted = 0; + hs_ep->interval = desc->bInterval; + + if (hs_ep->interval > 1 && hs_ep->mc > 1) + dev_err(hsotg->dev, "MC > 1 when interval is not 1\n"); switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) { case USB_ENDPOINT_XFER_ISOC: - dev_err(hsotg->dev, "no current ISOC support\n"); - ret = -EINVAL; - goto out; + epctrl |= DxEPCTL_EPType_Iso; + epctrl |= DxEPCTL_SetEvenFr; + hs_ep->isochronous = 1; + if (dir_in) + hs_ep->periodic = 1; + break; case USB_ENDPOINT_XFER_BULK: epctrl |= DxEPCTL_EPType_Bulk; @@ -2634,7 +2714,6 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep, /* enable the endpoint interrupt */ s3c_hsotg_ctrl_epint(hsotg, index, dir_in, 1); -out: spin_unlock_irqrestore(&hsotg->lock, flags); return ret; } @@ -2776,6 +2855,8 @@ static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value) writel(epctl, hs->regs + epreg); + hs_ep->halted = value; + return 0; } @@ -2903,7 +2984,7 @@ static int s3c_hsotg_udc_start(struct usb_gadget *gadget, int ret; if (!hsotg) { - printk(KERN_ERR "%s: called with no device\n", __func__); + pr_err("%s: called with no device\n", __func__); return -ENODEV; } @@ -3066,7 +3147,7 @@ static void s3c_hsotg_initep(struct s3c_hsotg *hsotg, hs_ep->parent = hsotg; hs_ep->ep.name = hs_ep->name; - hs_ep->ep.maxpacket = epnum ? 512 : EP0_MPS_LIMIT; + hs_ep->ep.maxpacket = epnum ? 1024 : EP0_MPS_LIMIT; hs_ep->ep.ops = &s3c_hsotg_ep_ops; /* @@ -3200,7 +3281,7 @@ static int state_show(struct seq_file *seq, void *v) readl(regs + GNPTXSTS), readl(regs + GRXSTSR)); - seq_printf(seq, "\nEndpoint status:\n"); + seq_puts(seq, "\nEndpoint status:\n"); for (idx = 0; idx < 15; idx++) { u32 in, out; @@ -3217,7 +3298,7 @@ static int state_show(struct seq_file *seq, void *v) seq_printf(seq, ", DIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x", in, out); - seq_printf(seq, "\n"); + seq_puts(seq, "\n"); } return 0; @@ -3251,7 +3332,7 @@ static int fifo_show(struct seq_file *seq, void *v) u32 val; int idx; - seq_printf(seq, "Non-periodic FIFOs:\n"); + seq_puts(seq, "Non-periodic FIFOs:\n"); seq_printf(seq, "RXFIFO: Size %d\n", readl(regs + GRXFSIZ)); val = readl(regs + GNPTXFSIZ); @@ -3259,7 +3340,7 @@ static int fifo_show(struct seq_file *seq, void *v) val >> GNPTXFSIZ_NPTxFDep_SHIFT, val & GNPTXFSIZ_NPTxFStAddr_MASK); - seq_printf(seq, "\nPeriodic TXFIFOs:\n"); + seq_puts(seq, "\nPeriodic TXFIFOs:\n"); for (idx = 1; idx <= 15; idx++) { val = readl(regs + DPTXFSIZn(idx)); @@ -3330,7 +3411,7 @@ static int ep_show(struct seq_file *seq, void *v) readl(regs + DIEPTSIZ(index)), readl(regs + DOEPTSIZ(index))); - seq_printf(seq, "\n"); + seq_puts(seq, "\n"); seq_printf(seq, "mps %d\n", ep->ep.maxpacket); seq_printf(seq, "total_data=%ld\n", ep->total_data); @@ -3341,7 +3422,7 @@ static int ep_show(struct seq_file *seq, void *v) list_for_each_entry(req, &ep->queue, queue) { if (--show_limit < 0) { - seq_printf(seq, "not showing more requests...\n"); + seq_puts(seq, "not showing more requests...\n"); break; } diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c index 08a1a3210a21..ec20a1f50c2d 100644 --- a/drivers/usb/gadget/storage_common.c +++ b/drivers/usb/gadget/storage_common.c @@ -23,242 +23,17 @@ * The valid range of num_buffers is: num >= 2 && num <= 4. */ +#include <linux/module.h> +#include <linux/blkdev.h> +#include <linux/file.h> +#include <linux/fs.h> +#include <linux/usb/composite.h> -#include <linux/usb/storage.h> -#include <scsi/scsi.h> -#include <asm/unaligned.h> - - -/* - * Thanks to NetChip Technologies for donating this product ID. - * - * DO NOT REUSE THESE IDs with any other driver!! Ever!! - * Instead: allocate your own, using normal USB-IF procedures. - */ -#define FSG_VENDOR_ID 0x0525 /* NetChip */ -#define FSG_PRODUCT_ID 0xa4a5 /* Linux-USB File-backed Storage Gadget */ - - -/*-------------------------------------------------------------------------*/ - - -#ifndef DEBUG -#undef VERBOSE_DEBUG -#undef DUMP_MSGS -#endif /* !DEBUG */ - -#ifdef VERBOSE_DEBUG -#define VLDBG LDBG -#else -#define VLDBG(lun, fmt, args...) do { } while (0) -#endif /* VERBOSE_DEBUG */ - -#define LDBG(lun, fmt, args...) dev_dbg (&(lun)->dev, fmt, ## args) -#define LERROR(lun, fmt, args...) dev_err (&(lun)->dev, fmt, ## args) -#define LWARN(lun, fmt, args...) dev_warn(&(lun)->dev, fmt, ## args) -#define LINFO(lun, fmt, args...) dev_info(&(lun)->dev, fmt, ## args) - - -#ifdef DUMP_MSGS - -# define dump_msg(fsg, /* const char * */ label, \ - /* const u8 * */ buf, /* unsigned */ length) do { \ - if (length < 512) { \ - DBG(fsg, "%s, length %u:\n", label, length); \ - print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, \ - 16, 1, buf, length, 0); \ - } \ -} while (0) - -# define dump_cdb(fsg) do { } while (0) - -#else - -# define dump_msg(fsg, /* const char * */ label, \ - /* const u8 * */ buf, /* unsigned */ length) do { } while (0) - -# ifdef VERBOSE_DEBUG - -# define dump_cdb(fsg) \ - print_hex_dump(KERN_DEBUG, "SCSI CDB: ", DUMP_PREFIX_NONE, \ - 16, 1, (fsg)->cmnd, (fsg)->cmnd_size, 0) \ - -# else - -# define dump_cdb(fsg) do { } while (0) - -# endif /* VERBOSE_DEBUG */ - -#endif /* DUMP_MSGS */ - -/*-------------------------------------------------------------------------*/ - -/* Length of a SCSI Command Data Block */ -#define MAX_COMMAND_SIZE 16 - -/* SCSI Sense Key/Additional Sense Code/ASC Qualifier values */ -#define SS_NO_SENSE 0 -#define SS_COMMUNICATION_FAILURE 0x040800 -#define SS_INVALID_COMMAND 0x052000 -#define SS_INVALID_FIELD_IN_CDB 0x052400 -#define SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE 0x052100 -#define SS_LOGICAL_UNIT_NOT_SUPPORTED 0x052500 -#define SS_MEDIUM_NOT_PRESENT 0x023a00 -#define SS_MEDIUM_REMOVAL_PREVENTED 0x055302 -#define SS_NOT_READY_TO_READY_TRANSITION 0x062800 -#define SS_RESET_OCCURRED 0x062900 -#define SS_SAVING_PARAMETERS_NOT_SUPPORTED 0x053900 -#define SS_UNRECOVERED_READ_ERROR 0x031100 -#define SS_WRITE_ERROR 0x030c02 -#define SS_WRITE_PROTECTED 0x072700 - -#define SK(x) ((u8) ((x) >> 16)) /* Sense Key byte, etc. */ -#define ASC(x) ((u8) ((x) >> 8)) -#define ASCQ(x) ((u8) (x)) - - -/*-------------------------------------------------------------------------*/ - - -struct fsg_lun { - struct file *filp; - loff_t file_length; - loff_t num_sectors; - - unsigned int initially_ro:1; - unsigned int ro:1; - unsigned int removable:1; - unsigned int cdrom:1; - unsigned int prevent_medium_removal:1; - unsigned int registered:1; - unsigned int info_valid:1; - unsigned int nofua:1; - - u32 sense_data; - u32 sense_data_info; - u32 unit_attention_data; - - unsigned int blkbits; /* Bits of logical block size of bound block device */ - unsigned int blksize; /* logical block size of bound block device */ - struct device dev; -}; - -static inline bool fsg_lun_is_open(struct fsg_lun *curlun) -{ - return curlun->filp != NULL; -} - -static inline struct fsg_lun *fsg_lun_from_dev(struct device *dev) -{ - return container_of(dev, struct fsg_lun, dev); -} - - -/* Big enough to hold our biggest descriptor */ -#define EP0_BUFSIZE 256 -#define DELAYED_STATUS (EP0_BUFSIZE + 999) /* An impossibly large value */ - -#ifdef CONFIG_USB_GADGET_DEBUG_FILES - -static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS; -module_param_named(num_buffers, fsg_num_buffers, uint, S_IRUGO); -MODULE_PARM_DESC(num_buffers, "Number of pipeline buffers"); - -#else - -/* - * Number of buffers we will use. - * 2 is usually enough for good buffering pipeline - */ -#define fsg_num_buffers CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS - -#endif /* CONFIG_USB_GADGET_DEBUG_FILES */ - -/* check if fsg_num_buffers is within a valid range */ -static inline int fsg_num_buffers_validate(void) -{ - if (fsg_num_buffers >= 2 && fsg_num_buffers <= 4) - return 0; - pr_err("fsg_num_buffers %u is out of range (%d to %d)\n", - fsg_num_buffers, 2 ,4); - return -EINVAL; -} - -/* Default size of buffer length. */ -#define FSG_BUFLEN ((u32)16384) - -/* Maximal number of LUNs supported in mass storage function */ -#define FSG_MAX_LUNS 8 - -enum fsg_buffer_state { - BUF_STATE_EMPTY = 0, - BUF_STATE_FULL, - BUF_STATE_BUSY -}; - -struct fsg_buffhd { - void *buf; - enum fsg_buffer_state state; - struct fsg_buffhd *next; - - /* - * The NetChip 2280 is faster, and handles some protocol faults - * better, if we don't submit any short bulk-out read requests. - * So we will record the intended request length here. - */ - unsigned int bulk_out_intended_length; - - struct usb_request *inreq; - int inreq_busy; - struct usb_request *outreq; - int outreq_busy; -}; - -enum fsg_state { - /* This one isn't used anywhere */ - FSG_STATE_COMMAND_PHASE = -10, - FSG_STATE_DATA_PHASE, - FSG_STATE_STATUS_PHASE, - - FSG_STATE_IDLE = 0, - FSG_STATE_ABORT_BULK_OUT, - FSG_STATE_RESET, - FSG_STATE_INTERFACE_CHANGE, - FSG_STATE_CONFIG_CHANGE, - FSG_STATE_DISCONNECT, - FSG_STATE_EXIT, - FSG_STATE_TERMINATED -}; - -enum data_direction { - DATA_DIR_UNKNOWN = 0, - DATA_DIR_FROM_HOST, - DATA_DIR_TO_HOST, - DATA_DIR_NONE -}; - - -/*-------------------------------------------------------------------------*/ - - -static inline u32 get_unaligned_be24(u8 *buf) -{ - return 0xffffff & (u32) get_unaligned_be32(buf - 1); -} - - -/*-------------------------------------------------------------------------*/ - - -enum { - FSG_STRING_INTERFACE -}; - +#include "storage_common.h" /* There is only one interface. */ -static struct usb_interface_descriptor -fsg_intf_desc = { +struct usb_interface_descriptor fsg_intf_desc = { .bLength = sizeof fsg_intf_desc, .bDescriptorType = USB_DT_INTERFACE, @@ -268,14 +43,14 @@ fsg_intf_desc = { .bInterfaceProtocol = USB_PR_BULK, /* Adjusted during fsg_bind() */ .iInterface = FSG_STRING_INTERFACE, }; +EXPORT_SYMBOL(fsg_intf_desc); /* * Three full-speed endpoint descriptors: bulk-in, bulk-out, and * interrupt-in. */ -static struct usb_endpoint_descriptor -fsg_fs_bulk_in_desc = { +struct usb_endpoint_descriptor fsg_fs_bulk_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -283,9 +58,9 @@ fsg_fs_bulk_in_desc = { .bmAttributes = USB_ENDPOINT_XFER_BULK, /* wMaxPacketSize set by autoconfiguration */ }; +EXPORT_SYMBOL(fsg_fs_bulk_in_desc); -static struct usb_endpoint_descriptor -fsg_fs_bulk_out_desc = { +struct usb_endpoint_descriptor fsg_fs_bulk_out_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -293,13 +68,15 @@ fsg_fs_bulk_out_desc = { .bmAttributes = USB_ENDPOINT_XFER_BULK, /* wMaxPacketSize set by autoconfiguration */ }; +EXPORT_SYMBOL(fsg_fs_bulk_out_desc); -static struct usb_descriptor_header *fsg_fs_function[] = { +struct usb_descriptor_header *fsg_fs_function[] = { (struct usb_descriptor_header *) &fsg_intf_desc, (struct usb_descriptor_header *) &fsg_fs_bulk_in_desc, (struct usb_descriptor_header *) &fsg_fs_bulk_out_desc, NULL, }; +EXPORT_SYMBOL(fsg_fs_function); /* @@ -310,8 +87,7 @@ static struct usb_descriptor_header *fsg_fs_function[] = { * and a "device qualifier" ... plus more construction options * for the configuration descriptor. */ -static struct usb_endpoint_descriptor -fsg_hs_bulk_in_desc = { +struct usb_endpoint_descriptor fsg_hs_bulk_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -319,9 +95,9 @@ fsg_hs_bulk_in_desc = { .bmAttributes = USB_ENDPOINT_XFER_BULK, .wMaxPacketSize = cpu_to_le16(512), }; +EXPORT_SYMBOL(fsg_hs_bulk_in_desc); -static struct usb_endpoint_descriptor -fsg_hs_bulk_out_desc = { +struct usb_endpoint_descriptor fsg_hs_bulk_out_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -330,17 +106,18 @@ fsg_hs_bulk_out_desc = { .wMaxPacketSize = cpu_to_le16(512), .bInterval = 1, /* NAK every 1 uframe */ }; +EXPORT_SYMBOL(fsg_hs_bulk_out_desc); -static struct usb_descriptor_header *fsg_hs_function[] = { +struct usb_descriptor_header *fsg_hs_function[] = { (struct usb_descriptor_header *) &fsg_intf_desc, (struct usb_descriptor_header *) &fsg_hs_bulk_in_desc, (struct usb_descriptor_header *) &fsg_hs_bulk_out_desc, NULL, }; +EXPORT_SYMBOL(fsg_hs_function); -static struct usb_endpoint_descriptor -fsg_ss_bulk_in_desc = { +struct usb_endpoint_descriptor fsg_ss_bulk_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -348,16 +125,17 @@ fsg_ss_bulk_in_desc = { .bmAttributes = USB_ENDPOINT_XFER_BULK, .wMaxPacketSize = cpu_to_le16(1024), }; +EXPORT_SYMBOL(fsg_ss_bulk_in_desc); -static struct usb_ss_ep_comp_descriptor fsg_ss_bulk_in_comp_desc = { +struct usb_ss_ep_comp_descriptor fsg_ss_bulk_in_comp_desc = { .bLength = sizeof(fsg_ss_bulk_in_comp_desc), .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, /*.bMaxBurst = DYNAMIC, */ }; +EXPORT_SYMBOL(fsg_ss_bulk_in_comp_desc); -static struct usb_endpoint_descriptor -fsg_ss_bulk_out_desc = { +struct usb_endpoint_descriptor fsg_ss_bulk_out_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -365,15 +143,17 @@ fsg_ss_bulk_out_desc = { .bmAttributes = USB_ENDPOINT_XFER_BULK, .wMaxPacketSize = cpu_to_le16(1024), }; +EXPORT_SYMBOL(fsg_ss_bulk_out_desc); -static struct usb_ss_ep_comp_descriptor fsg_ss_bulk_out_comp_desc = { +struct usb_ss_ep_comp_descriptor fsg_ss_bulk_out_comp_desc = { .bLength = sizeof(fsg_ss_bulk_in_comp_desc), .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, /*.bMaxBurst = DYNAMIC, */ }; +EXPORT_SYMBOL(fsg_ss_bulk_out_comp_desc); -static struct usb_descriptor_header *fsg_ss_function[] = { +struct usb_descriptor_header *fsg_ss_function[] = { (struct usb_descriptor_header *) &fsg_intf_desc, (struct usb_descriptor_header *) &fsg_ss_bulk_in_desc, (struct usb_descriptor_header *) &fsg_ss_bulk_in_comp_desc, @@ -381,17 +161,7 @@ static struct usb_descriptor_header *fsg_ss_function[] = { (struct usb_descriptor_header *) &fsg_ss_bulk_out_comp_desc, NULL, }; - -/* Static strings, in UTF-8 (for simplicity we use only ASCII characters) */ -static struct usb_string fsg_strings[] = { - {FSG_STRING_INTERFACE, fsg_string_interface}, - {} -}; - -static struct usb_gadget_strings fsg_stringtab = { - .language = 0x0409, /* en-us */ - .strings = fsg_strings, -}; +EXPORT_SYMBOL(fsg_ss_function); /*-------------------------------------------------------------------------*/ @@ -401,7 +171,7 @@ static struct usb_gadget_strings fsg_stringtab = { * the caller must own fsg->filesem for writing. */ -static void fsg_lun_close(struct fsg_lun *curlun) +void fsg_lun_close(struct fsg_lun *curlun) { if (curlun->filp) { LDBG(curlun, "close backing file\n"); @@ -409,9 +179,9 @@ static void fsg_lun_close(struct fsg_lun *curlun) curlun->filp = NULL; } } +EXPORT_SYMBOL(fsg_lun_close); - -static int fsg_lun_open(struct fsg_lun *curlun, const char *filename) +int fsg_lun_open(struct fsg_lun *curlun, const char *filename) { int ro; struct file *filp = NULL; @@ -508,6 +278,7 @@ out: fput(filp); return rc; } +EXPORT_SYMBOL(fsg_lun_open); /*-------------------------------------------------------------------------*/ @@ -516,7 +287,7 @@ out: * Sync the file data, don't bother with the metadata. * This code was copied from fs/buffer.c:sys_fdatasync(). */ -static int fsg_lun_fsync_sub(struct fsg_lun *curlun) +int fsg_lun_fsync_sub(struct fsg_lun *curlun) { struct file *filp = curlun->filp; @@ -524,8 +295,9 @@ static int fsg_lun_fsync_sub(struct fsg_lun *curlun) return 0; return vfs_fsync(filp, 1); } +EXPORT_SYMBOL(fsg_lun_fsync_sub); -static void store_cdrom_address(u8 *dest, int msf, u32 addr) +void store_cdrom_address(u8 *dest, int msf, u32 addr) { if (msf) { /* Convert to Minutes-Seconds-Frames */ @@ -542,34 +314,28 @@ static void store_cdrom_address(u8 *dest, int msf, u32 addr) put_unaligned_be32(addr, dest); } } - +EXPORT_SYMBOL(store_cdrom_address); /*-------------------------------------------------------------------------*/ -static ssize_t ro_show(struct device *dev, struct device_attribute *attr, - char *buf) +ssize_t fsg_show_ro(struct fsg_lun *curlun, char *buf) { - struct fsg_lun *curlun = fsg_lun_from_dev(dev); - return sprintf(buf, "%d\n", fsg_lun_is_open(curlun) ? curlun->ro : curlun->initially_ro); } +EXPORT_SYMBOL(fsg_show_ro); -static ssize_t nofua_show(struct device *dev, struct device_attribute *attr, - char *buf) +ssize_t fsg_show_nofua(struct fsg_lun *curlun, char *buf) { - struct fsg_lun *curlun = fsg_lun_from_dev(dev); - return sprintf(buf, "%u\n", curlun->nofua); } +EXPORT_SYMBOL(fsg_show_nofua); -static ssize_t file_show(struct device *dev, struct device_attribute *attr, - char *buf) +ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem, + char *buf) { - struct fsg_lun *curlun = fsg_lun_from_dev(dev); - struct rw_semaphore *filesem = dev_get_drvdata(dev); char *p; ssize_t rc; @@ -591,17 +357,44 @@ static ssize_t file_show(struct device *dev, struct device_attribute *attr, up_read(filesem); return rc; } +EXPORT_SYMBOL(fsg_show_file); +ssize_t fsg_show_cdrom(struct fsg_lun *curlun, char *buf) +{ + return sprintf(buf, "%u\n", curlun->cdrom); +} +EXPORT_SYMBOL(fsg_show_cdrom); -static ssize_t ro_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +ssize_t fsg_show_removable(struct fsg_lun *curlun, char *buf) +{ + return sprintf(buf, "%u\n", curlun->removable); +} +EXPORT_SYMBOL(fsg_show_removable); + +/* + * The caller must hold fsg->filesem for reading when calling this function. + */ +static ssize_t _fsg_store_ro(struct fsg_lun *curlun, bool ro) +{ + if (fsg_lun_is_open(curlun)) { + LDBG(curlun, "read-only status change prevented\n"); + return -EBUSY; + } + + curlun->ro = ro; + curlun->initially_ro = ro; + LDBG(curlun, "read-only status set to %d\n", curlun->ro); + + return 0; +} + +ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem, + const char *buf, size_t count) { ssize_t rc; - struct fsg_lun *curlun = fsg_lun_from_dev(dev); - struct rw_semaphore *filesem = dev_get_drvdata(dev); - unsigned ro; + bool ro; - rc = kstrtouint(buf, 2, &ro); + rc = strtobool(buf, &ro); if (rc) return rc; @@ -610,27 +403,21 @@ static ssize_t ro_store(struct device *dev, struct device_attribute *attr, * backing file is closed. */ down_read(filesem); - if (fsg_lun_is_open(curlun)) { - LDBG(curlun, "read-only status change prevented\n"); - rc = -EBUSY; - } else { - curlun->ro = ro; - curlun->initially_ro = ro; - LDBG(curlun, "read-only status set to %d\n", curlun->ro); + rc = _fsg_store_ro(curlun, ro); + if (!rc) rc = count; - } up_read(filesem); + return rc; } +EXPORT_SYMBOL(fsg_store_ro); -static ssize_t nofua_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +ssize_t fsg_store_nofua(struct fsg_lun *curlun, const char *buf, size_t count) { - struct fsg_lun *curlun = fsg_lun_from_dev(dev); - unsigned nofua; + bool nofua; int ret; - ret = kstrtouint(buf, 2, &nofua); + ret = strtobool(buf, &nofua); if (ret) return ret; @@ -642,12 +429,11 @@ static ssize_t nofua_store(struct device *dev, struct device_attribute *attr, return count; } +EXPORT_SYMBOL(fsg_store_nofua); -static ssize_t file_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) +ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem, + const char *buf, size_t count) { - struct fsg_lun *curlun = fsg_lun_from_dev(dev); - struct rw_semaphore *filesem = dev_get_drvdata(dev); int rc = 0; if (curlun->prevent_medium_removal && fsg_lun_is_open(curlun)) { @@ -674,3 +460,45 @@ static ssize_t file_store(struct device *dev, struct device_attribute *attr, up_write(filesem); return (rc < 0 ? rc : count); } +EXPORT_SYMBOL(fsg_store_file); + +ssize_t fsg_store_cdrom(struct fsg_lun *curlun, struct rw_semaphore *filesem, + const char *buf, size_t count) +{ + bool cdrom; + int ret; + + ret = strtobool(buf, &cdrom); + if (ret) + return ret; + + down_read(filesem); + ret = cdrom ? _fsg_store_ro(curlun, true) : 0; + + if (!ret) { + curlun->cdrom = cdrom; + ret = count; + } + up_read(filesem); + + return ret; +} +EXPORT_SYMBOL(fsg_store_cdrom); + +ssize_t fsg_store_removable(struct fsg_lun *curlun, const char *buf, + size_t count) +{ + bool removable; + int ret; + + ret = strtobool(buf, &removable); + if (ret) + return ret; + + curlun->removable = removable; + + return count; +} +EXPORT_SYMBOL(fsg_store_removable); + +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/storage_common.h b/drivers/usb/gadget/storage_common.h new file mode 100644 index 000000000000..c74c2fdbd56e --- /dev/null +++ b/drivers/usb/gadget/storage_common.h @@ -0,0 +1,229 @@ +#ifndef USB_STORAGE_COMMON_H +#define USB_STORAGE_COMMON_H + +#include <linux/device.h> +#include <linux/usb/storage.h> +#include <scsi/scsi.h> +#include <asm/unaligned.h> + +#ifndef DEBUG +#undef VERBOSE_DEBUG +#undef DUMP_MSGS +#endif /* !DEBUG */ + +#ifdef VERBOSE_DEBUG +#define VLDBG LDBG +#else +#define VLDBG(lun, fmt, args...) do { } while (0) +#endif /* VERBOSE_DEBUG */ + +#define _LMSG(func, lun, fmt, args...) \ + do { \ + if ((lun)->name_pfx && *(lun)->name_pfx) \ + func("%s/%s: " fmt, *(lun)->name_pfx, \ + (lun)->name, ## args); \ + else \ + func("%s: " fmt, (lun)->name, ## args); \ + } while (0) + +#define LDBG(lun, fmt, args...) _LMSG(pr_debug, lun, fmt, ## args) +#define LERROR(lun, fmt, args...) _LMSG(pr_err, lun, fmt, ## args) +#define LWARN(lun, fmt, args...) _LMSG(pr_warn, lun, fmt, ## args) +#define LINFO(lun, fmt, args...) _LMSG(pr_info, lun, fmt, ## args) + + +#ifdef DUMP_MSGS + +# define dump_msg(fsg, /* const char * */ label, \ + /* const u8 * */ buf, /* unsigned */ length) \ +do { \ + if (length < 512) { \ + DBG(fsg, "%s, length %u:\n", label, length); \ + print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, \ + 16, 1, buf, length, 0); \ + } \ +} while (0) + +# define dump_cdb(fsg) do { } while (0) + +#else + +# define dump_msg(fsg, /* const char * */ label, \ + /* const u8 * */ buf, /* unsigned */ length) do { } while (0) + +# ifdef VERBOSE_DEBUG + +# define dump_cdb(fsg) \ + print_hex_dump(KERN_DEBUG, "SCSI CDB: ", DUMP_PREFIX_NONE, \ + 16, 1, (fsg)->cmnd, (fsg)->cmnd_size, 0) \ + +# else + +# define dump_cdb(fsg) do { } while (0) + +# endif /* VERBOSE_DEBUG */ + +#endif /* DUMP_MSGS */ + +/* Length of a SCSI Command Data Block */ +#define MAX_COMMAND_SIZE 16 + +/* SCSI Sense Key/Additional Sense Code/ASC Qualifier values */ +#define SS_NO_SENSE 0 +#define SS_COMMUNICATION_FAILURE 0x040800 +#define SS_INVALID_COMMAND 0x052000 +#define SS_INVALID_FIELD_IN_CDB 0x052400 +#define SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE 0x052100 +#define SS_LOGICAL_UNIT_NOT_SUPPORTED 0x052500 +#define SS_MEDIUM_NOT_PRESENT 0x023a00 +#define SS_MEDIUM_REMOVAL_PREVENTED 0x055302 +#define SS_NOT_READY_TO_READY_TRANSITION 0x062800 +#define SS_RESET_OCCURRED 0x062900 +#define SS_SAVING_PARAMETERS_NOT_SUPPORTED 0x053900 +#define SS_UNRECOVERED_READ_ERROR 0x031100 +#define SS_WRITE_ERROR 0x030c02 +#define SS_WRITE_PROTECTED 0x072700 + +#define SK(x) ((u8) ((x) >> 16)) /* Sense Key byte, etc. */ +#define ASC(x) ((u8) ((x) >> 8)) +#define ASCQ(x) ((u8) (x)) + +struct fsg_lun { + struct file *filp; + loff_t file_length; + loff_t num_sectors; + + unsigned int initially_ro:1; + unsigned int ro:1; + unsigned int removable:1; + unsigned int cdrom:1; + unsigned int prevent_medium_removal:1; + unsigned int registered:1; + unsigned int info_valid:1; + unsigned int nofua:1; + + u32 sense_data; + u32 sense_data_info; + u32 unit_attention_data; + + unsigned int blkbits; /* Bits of logical block size + of bound block device */ + unsigned int blksize; /* logical block size of bound block device */ + struct device dev; + const char *name; /* "lun.name" */ + const char **name_pfx; /* "function.name" */ +}; + +static inline bool fsg_lun_is_open(struct fsg_lun *curlun) +{ + return curlun->filp != NULL; +} + +/* Big enough to hold our biggest descriptor */ +#define EP0_BUFSIZE 256 +#define DELAYED_STATUS (EP0_BUFSIZE + 999) /* An impossibly large value */ + +/* Default size of buffer length. */ +#define FSG_BUFLEN ((u32)16384) + +/* Maximal number of LUNs supported in mass storage function */ +#define FSG_MAX_LUNS 8 + +enum fsg_buffer_state { + BUF_STATE_EMPTY = 0, + BUF_STATE_FULL, + BUF_STATE_BUSY +}; + +struct fsg_buffhd { + void *buf; + enum fsg_buffer_state state; + struct fsg_buffhd *next; + + /* + * The NetChip 2280 is faster, and handles some protocol faults + * better, if we don't submit any short bulk-out read requests. + * So we will record the intended request length here. + */ + unsigned int bulk_out_intended_length; + + struct usb_request *inreq; + int inreq_busy; + struct usb_request *outreq; + int outreq_busy; +}; + +enum fsg_state { + /* This one isn't used anywhere */ + FSG_STATE_COMMAND_PHASE = -10, + FSG_STATE_DATA_PHASE, + FSG_STATE_STATUS_PHASE, + + FSG_STATE_IDLE = 0, + FSG_STATE_ABORT_BULK_OUT, + FSG_STATE_RESET, + FSG_STATE_INTERFACE_CHANGE, + FSG_STATE_CONFIG_CHANGE, + FSG_STATE_DISCONNECT, + FSG_STATE_EXIT, + FSG_STATE_TERMINATED +}; + +enum data_direction { + DATA_DIR_UNKNOWN = 0, + DATA_DIR_FROM_HOST, + DATA_DIR_TO_HOST, + DATA_DIR_NONE +}; + +static inline u32 get_unaligned_be24(u8 *buf) +{ + return 0xffffff & (u32) get_unaligned_be32(buf - 1); +} + +static inline struct fsg_lun *fsg_lun_from_dev(struct device *dev) +{ + return container_of(dev, struct fsg_lun, dev); +} + +enum { + FSG_STRING_INTERFACE +}; + +extern struct usb_interface_descriptor fsg_intf_desc; + +extern struct usb_endpoint_descriptor fsg_fs_bulk_in_desc; +extern struct usb_endpoint_descriptor fsg_fs_bulk_out_desc; +extern struct usb_descriptor_header *fsg_fs_function[]; + +extern struct usb_endpoint_descriptor fsg_hs_bulk_in_desc; +extern struct usb_endpoint_descriptor fsg_hs_bulk_out_desc; +extern struct usb_descriptor_header *fsg_hs_function[]; + +extern struct usb_endpoint_descriptor fsg_ss_bulk_in_desc; +extern struct usb_ss_ep_comp_descriptor fsg_ss_bulk_in_comp_desc; +extern struct usb_endpoint_descriptor fsg_ss_bulk_out_desc; +extern struct usb_ss_ep_comp_descriptor fsg_ss_bulk_out_comp_desc; +extern struct usb_descriptor_header *fsg_ss_function[]; + +void fsg_lun_close(struct fsg_lun *curlun); +int fsg_lun_open(struct fsg_lun *curlun, const char *filename); +int fsg_lun_fsync_sub(struct fsg_lun *curlun); +void store_cdrom_address(u8 *dest, int msf, u32 addr); +ssize_t fsg_show_ro(struct fsg_lun *curlun, char *buf); +ssize_t fsg_show_nofua(struct fsg_lun *curlun, char *buf); +ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem, + char *buf); +ssize_t fsg_show_cdrom(struct fsg_lun *curlun, char *buf); +ssize_t fsg_show_removable(struct fsg_lun *curlun, char *buf); +ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem, + const char *buf, size_t count); +ssize_t fsg_store_nofua(struct fsg_lun *curlun, const char *buf, size_t count); +ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem, + const char *buf, size_t count); +ssize_t fsg_store_cdrom(struct fsg_lun *curlun, struct rw_semaphore *filesem, + const char *buf, size_t count); +ssize_t fsg_store_removable(struct fsg_lun *curlun, const char *buf, + size_t count); + +#endif /* USB_STORAGE_COMMON_H */ diff --git a/drivers/usb/gadget/tcm_usb_gadget.c b/drivers/usb/gadget/tcm_usb_gadget.c index 0ff33396eef3..eccea1df702d 100644 --- a/drivers/usb/gadget/tcm_usb_gadget.c +++ b/drivers/usb/gadget/tcm_usb_gadget.c @@ -472,7 +472,7 @@ static int usbg_bot_setup(struct usb_function *f, bot_enqueue_cmd_cbw(fu); return 0; break; - }; + } return -ENOTSUPP; } @@ -617,7 +617,7 @@ static void uasp_status_data_cmpl(struct usb_ep *ep, struct usb_request *req) default: BUG(); - }; + } return; cleanup: diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index 59891b1c48fc..27768a7d986a 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -356,7 +356,8 @@ static int udc_bind_to_driver(struct usb_udc *udc, struct usb_gadget_driver *dri kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE); return 0; err1: - dev_err(&udc->dev, "failed to start %s: %d\n", + if (ret != -EISNAM) + dev_err(&udc->dev, "failed to start %s: %d\n", udc->driver->function, ret); udc->driver = NULL; udc->dev.driver = NULL; diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c index 0deb9d6cde26..0dd07ae1555d 100644 --- a/drivers/usb/gadget/zero.c +++ b/drivers/usb/gadget/zero.c @@ -95,6 +95,18 @@ unsigned autoresume = DEFAULT_AUTORESUME; module_param(autoresume, uint, S_IRUGO); MODULE_PARM_DESC(autoresume, "zero, or seconds before remote wakeup"); +/* Maximum Autoresume time */ +unsigned max_autoresume; +module_param(max_autoresume, uint, S_IRUGO); +MODULE_PARM_DESC(max_autoresume, "maximum seconds before remote wakeup"); + +/* Interval between two remote wakeups */ +unsigned autoresume_interval_ms; +module_param(autoresume_interval_ms, uint, S_IRUGO); +MODULE_PARM_DESC(autoresume_interval_ms, + "milliseconds to increase successive wakeup delays"); + +static unsigned autoresume_step_ms; /*-------------------------------------------------------------------------*/ static struct usb_device_descriptor device_desc = { @@ -183,8 +195,16 @@ static void zero_suspend(struct usb_composite_dev *cdev) return; if (autoresume) { - mod_timer(&autoresume_timer, jiffies + (HZ * autoresume)); - DBG(cdev, "suspend, wakeup in %d seconds\n", autoresume); + if (max_autoresume && + (autoresume_step_ms > max_autoresume * 1000)) + autoresume_step_ms = autoresume * 1000; + + mod_timer(&autoresume_timer, jiffies + + msecs_to_jiffies(autoresume_step_ms)); + DBG(cdev, "suspend, wakeup in %d milliseconds\n", + autoresume_step_ms); + + autoresume_step_ms += autoresume_interval_ms; } else DBG(cdev, "%s\n", __func__); } @@ -316,6 +336,7 @@ static int __init zero_bind(struct usb_composite_dev *cdev) if (autoresume) { sourcesink_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP; loopback_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP; + autoresume_step_ms = autoresume * 1000; } /* support OTG systems */ diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index b3f20d7f15de..a9707da7da0b 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -54,7 +54,7 @@ config USB_EHCI_HCD config USB_EHCI_ROOT_HUB_TT bool "Root Hub Transaction Translators" - depends on USB_EHCI_HCD || USB_CHIPIDEA_HOST + depends on USB_EHCI_HCD ---help--- Some EHCI chips have vendor-specific extensions to integrate transaction translators, so that no OHCI or UHCI companion @@ -66,7 +66,7 @@ config USB_EHCI_ROOT_HUB_TT config USB_EHCI_TT_NEWSCHED bool "Improved Transaction Translator scheduling" - depends on USB_EHCI_HCD || USB_CHIPIDEA_HOST + depends on USB_EHCI_HCD default y ---help--- This changes the periodic scheduling code to fill more of the low @@ -203,12 +203,11 @@ config USB_EHCI_SH Enables support for the on-chip EHCI controller on the SuperH. If you use the PCI EHCI controller, this option is not necessary. -config USB_EHCI_S5P +config USB_EHCI_EXYNOS tristate "EHCI support for Samsung S5P/EXYNOS SoC Series" depends on PLAT_S5P || ARCH_EXYNOS help - Enable support for the Samsung S5Pxxxx and Exynos3/4/5 SOC's - on-chip EHCI controller. + Enable support for the Samsung Exynos SOC's on-chip EHCI controller. config USB_EHCI_MV bool "EHCI support for Marvell PXA/MMP USB controller" @@ -224,7 +223,7 @@ config USB_EHCI_MV on-chip EHCI USB controller" for those. config USB_W90X900_EHCI - bool "W90X900(W90P910) EHCI support" + tristate "W90X900(W90P910) EHCI support" depends on ARCH_W90X900 ---help--- Enables support for the W90X900 USB controller @@ -367,14 +366,54 @@ config USB_OHCI_HCD if USB_OHCI_HCD config USB_OHCI_HCD_OMAP1 - bool "OHCI support for OMAP1/2 chips" + tristate "OHCI support for OMAP1/2 chips" depends on ARCH_OMAP1 default y ---help--- Enables support for the OHCI controller on OMAP1/2 chips. +config USB_OHCI_HCD_SPEAR + tristate "Support for ST SPEAr on-chip OHCI USB controller" + depends on USB_OHCI_HCD && PLAT_SPEAR + default y + ---help--- + Enables support for the on-chip OHCI controller on + ST SPEAr chips. + +config USB_OHCI_HCD_S3C2410 + tristate "OHCI support for Samsung S3C24xx/S3C64xx SoC series" + depends on USB_OHCI_HCD && (ARCH_S3C24XX || ARCH_S3C64XX) + default y + ---help--- + Enables support for the on-chip OHCI controller on + S3C24xx/S3C64xx chips. + +config USB_OHCI_HCD_LPC32XX + tristate "Support for LPC on-chip OHCI USB controller" + depends on USB_OHCI_HCD && ARCH_LPC32XX + default y + ---help--- + Enables support for the on-chip OHCI controller on + NXP chips. + +config USB_OHCI_HCD_PXA27X + tristate "Support for PXA27X/PXA3XX on-chip OHCI USB controller" + depends on USB_OHCI_HCD && (PXA27x || PXA3xx) + default y + ---help--- + Enables support for the on-chip OHCI controller on + PXA27x/PXA3xx chips. + +config USB_OHCI_HCD_AT91 + tristate "Support for Atmel on-chip OHCI USB controller" + depends on USB_OHCI_HCD && ARCH_AT91 + default y + ---help--- + Enables support for the on-chip OHCI controller on + Atmel chips. + config USB_OHCI_HCD_OMAP3 - bool "OHCI support for OMAP3 and later chips" + tristate "OHCI support for OMAP3 and later chips" depends on (ARCH_OMAP3 || ARCH_OMAP4) default y ---help--- @@ -454,8 +493,8 @@ config USB_OHCI_SH If you use the PCI OHCI controller, this option is not necessary. config USB_OHCI_EXYNOS - boolean "OHCI support for Samsung EXYNOS SoC Series" - depends on ARCH_EXYNOS + tristate "OHCI support for Samsung S5P/EXYNOS SoC Series" + depends on PLAT_S5P || ARCH_EXYNOS help Enable support for the Samsung Exynos SOC's on-chip OHCI controller. diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 50b0041c09a9..01e879ef3654 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -34,10 +34,11 @@ obj-$(CONFIG_USB_EHCI_MXC) += ehci-mxc.o obj-$(CONFIG_USB_EHCI_HCD_OMAP) += ehci-omap.o obj-$(CONFIG_USB_EHCI_HCD_ORION) += ehci-orion.o obj-$(CONFIG_USB_EHCI_HCD_SPEAR) += ehci-spear.o -obj-$(CONFIG_USB_EHCI_S5P) += ehci-s5p.o +obj-$(CONFIG_USB_EHCI_EXYNOS) += ehci-exynos.o obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o obj-$(CONFIG_USB_EHCI_MSM) += ehci-msm.o obj-$(CONFIG_USB_EHCI_TEGRA) += ehci-tegra.o +obj-$(CONFIG_USB_W90X900_EHCI) += ehci-w90x900.o obj-$(CONFIG_USB_OXU210HP_HCD) += oxu210hp-hcd.o obj-$(CONFIG_USB_ISP116X_HCD) += isp116x-hcd.o @@ -46,6 +47,14 @@ obj-$(CONFIG_USB_ISP1362_HCD) += isp1362-hcd.o obj-$(CONFIG_USB_OHCI_HCD) += ohci-hcd.o obj-$(CONFIG_USB_OHCI_HCD_PCI) += ohci-pci.o obj-$(CONFIG_USB_OHCI_HCD_PLATFORM) += ohci-platform.o +obj-$(CONFIG_USB_OHCI_EXYNOS) += ohci-exynos.o +obj-$(CONFIG_USB_OHCI_HCD_OMAP1) += ohci-omap.o +obj-$(CONFIG_USB_OHCI_HCD_OMAP3) += ohci-omap3.o +obj-$(CONFIG_USB_OHCI_HCD_SPEAR) += ohci-spear.o +obj-$(CONFIG_USB_OHCI_HCD_AT91) += ohci-at91.o +obj-$(CONFIG_USB_OHCI_HCD_S3C2410) += ohci-s3c2410.o +obj-$(CONFIG_USB_OHCI_HCD_LPC32XX) += ohci-nxp.o +obj-$(CONFIG_USB_OHCI_HCD_PXA27X) += ohci-pxa27x.o obj-$(CONFIG_USB_UHCI_HCD) += uhci-hcd.o obj-$(CONFIG_USB_FHCI_HCD) += fhci.o diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c index 3b645ff46f7b..f417526fb1f4 100644 --- a/drivers/usb/host/ehci-atmel.c +++ b/drivers/usb/host/ehci-atmel.c @@ -30,13 +30,17 @@ static const char hcd_name[] = "ehci-atmel"; static struct hc_driver __read_mostly ehci_atmel_hc_driver; /* interface and function clocks */ -static struct clk *iclk, *fclk; +static struct clk *iclk, *fclk, *uclk; static int clocked; /*-------------------------------------------------------------------------*/ static void atmel_start_clock(void) { + if (IS_ENABLED(CONFIG_COMMON_CLK)) { + clk_set_rate(uclk, 48000000); + clk_prepare_enable(uclk); + } clk_prepare_enable(iclk); clk_prepare_enable(fclk); clocked = 1; @@ -46,6 +50,8 @@ static void atmel_stop_clock(void) { clk_disable_unprepare(fclk); clk_disable_unprepare(iclk); + if (IS_ENABLED(CONFIG_COMMON_CLK)) + clk_disable_unprepare(uclk); clocked = 0; } @@ -130,6 +136,14 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev) retval = -ENOENT; goto fail_request_resource; } + if (IS_ENABLED(CONFIG_COMMON_CLK)) { + uclk = devm_clk_get(&pdev->dev, "usb_clk"); + if (IS_ERR(uclk)) { + dev_err(&pdev->dev, "failed to get uclk\n"); + retval = PTR_ERR(uclk); + goto fail_request_resource; + } + } ehci = hcd_to_ehci(hcd); /* registers start at offset 0x0 */ diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index aa5b603f3933..4a9c2edbcb2b 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -334,6 +334,7 @@ static inline void remove_debug_files (struct ehci_hcd *bus) { } /* troubleshooting help: expose state in debugfs */ static int debug_async_open(struct inode *, struct file *); +static int debug_bandwidth_open(struct inode *, struct file *); static int debug_periodic_open(struct inode *, struct file *); static int debug_registers_open(struct inode *, struct file *); @@ -347,6 +348,13 @@ static const struct file_operations debug_async_fops = { .release = debug_close, .llseek = default_llseek, }; +static const struct file_operations debug_bandwidth_fops = { + .owner = THIS_MODULE, + .open = debug_bandwidth_open, + .read = debug_output, + .release = debug_close, + .llseek = default_llseek, +}; static const struct file_operations debug_periodic_fops = { .owner = THIS_MODULE, .open = debug_periodic_open, @@ -379,7 +387,7 @@ struct debug_buffer { case QH_LOW_SPEED: tmp = 'l'; break; \ case QH_HIGH_SPEED: tmp = 'h'; break; \ default: tmp = '?'; break; \ - }; tmp; }) + } tmp; }) static inline char token_mark(struct ehci_hcd *ehci, __hc32 token) { @@ -525,6 +533,89 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf) return strlen(buf->output_buf); } +static ssize_t fill_bandwidth_buffer(struct debug_buffer *buf) +{ + struct ehci_hcd *ehci; + struct ehci_tt *tt; + struct ehci_per_sched *ps; + unsigned temp, size; + char *next; + unsigned i; + u8 *bw; + u16 *bf; + u8 budget[EHCI_BANDWIDTH_SIZE]; + + ehci = hcd_to_ehci(bus_to_hcd(buf->bus)); + next = buf->output_buf; + size = buf->alloc_size; + + *next = 0; + + spin_lock_irq(&ehci->lock); + + /* Dump the HS bandwidth table */ + temp = scnprintf(next, size, + "HS bandwidth allocation (us per microframe)\n"); + size -= temp; + next += temp; + for (i = 0; i < EHCI_BANDWIDTH_SIZE; i += 8) { + bw = &ehci->bandwidth[i]; + temp = scnprintf(next, size, + "%2u: %4u%4u%4u%4u%4u%4u%4u%4u\n", + i, bw[0], bw[1], bw[2], bw[3], + bw[4], bw[5], bw[6], bw[7]); + size -= temp; + next += temp; + } + + /* Dump all the FS/LS tables */ + list_for_each_entry(tt, &ehci->tt_list, tt_list) { + temp = scnprintf(next, size, + "\nTT %s port %d FS/LS bandwidth allocation (us per frame)\n", + dev_name(&tt->usb_tt->hub->dev), + tt->tt_port + !!tt->usb_tt->multi); + size -= temp; + next += temp; + + bf = tt->bandwidth; + temp = scnprintf(next, size, + " %5u%5u%5u%5u%5u%5u%5u%5u\n", + bf[0], bf[1], bf[2], bf[3], + bf[4], bf[5], bf[6], bf[7]); + size -= temp; + next += temp; + + temp = scnprintf(next, size, + "FS/LS budget (us per microframe)\n"); + size -= temp; + next += temp; + compute_tt_budget(budget, tt); + for (i = 0; i < EHCI_BANDWIDTH_SIZE; i += 8) { + bw = &budget[i]; + temp = scnprintf(next, size, + "%2u: %4u%4u%4u%4u%4u%4u%4u%4u\n", + i, bw[0], bw[1], bw[2], bw[3], + bw[4], bw[5], bw[6], bw[7]); + size -= temp; + next += temp; + } + list_for_each_entry(ps, &tt->ps_list, ps_list) { + temp = scnprintf(next, size, + "%s ep %02x: %4u @ %2u.%u+%u mask %04x\n", + dev_name(&ps->udev->dev), + ps->ep->desc.bEndpointAddress, + ps->tt_usecs, + ps->bw_phase, ps->phase_uf, + ps->bw_period, ps->cs_mask); + size -= temp; + next += temp; + } + } + spin_unlock_irq(&ehci->lock); + + return next - buf->output_buf; +} + #define DBG_SCHED_LIMIT 64 static ssize_t fill_periodic_buffer(struct debug_buffer *buf) { @@ -571,7 +662,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) case Q_TYPE_QH: hw = p.qh->hw; temp = scnprintf (next, size, " qh%d-%04x/%p", - p.qh->period, + p.qh->ps.period, hc32_to_cpup(ehci, &hw->hw_info2) /* uframe masks */ @@ -618,7 +709,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) speed_char (scratch), scratch & 0x007f, (scratch >> 8) & 0x000f, type, - p.qh->usecs, p.qh->c_usecs, + p.qh->ps.usecs, + p.qh->ps.c_usecs, temp, 0x7ff & (scratch >> 16)); @@ -645,7 +737,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf) case Q_TYPE_SITD: temp = scnprintf (next, size, " sitd%d-%04x/%p", - p.sitd->stream->interval, + p.sitd->stream->ps.period, hc32_to_cpup(ehci, &p.sitd->hw_uframe) & 0x0000ffff, p.sitd); @@ -918,6 +1010,7 @@ static int debug_close(struct inode *inode, struct file *file) return 0; } + static int debug_async_open(struct inode *inode, struct file *file) { file->private_data = alloc_buffer(inode->i_private, fill_async_buffer); @@ -925,6 +1018,14 @@ static int debug_async_open(struct inode *inode, struct file *file) return file->private_data ? 0 : -ENOMEM; } +static int debug_bandwidth_open(struct inode *inode, struct file *file) +{ + file->private_data = alloc_buffer(inode->i_private, + fill_bandwidth_buffer); + + return file->private_data ? 0 : -ENOMEM; +} + static int debug_periodic_open(struct inode *inode, struct file *file) { struct debug_buffer *buf; @@ -957,6 +1058,10 @@ static inline void create_debug_files (struct ehci_hcd *ehci) &debug_async_fops)) goto file_error; + if (!debugfs_create_file("bandwidth", S_IRUGO, ehci->debug_dir, bus, + &debug_bandwidth_fops)) + goto file_error; + if (!debugfs_create_file("periodic", S_IRUGO, ehci->debug_dir, bus, &debug_periodic_fops)) goto file_error; diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-exynos.c index 7c3de95c7054..016352e0f5a7 100644 --- a/drivers/usb/host/ehci-s5p.c +++ b/drivers/usb/host/ehci-exynos.c @@ -1,5 +1,5 @@ /* - * SAMSUNG S5P USB HOST EHCI Controller + * SAMSUNG EXYNOS USB HOST EHCI Controller * * Copyright (C) 2011 Samsung Electronics Co.Ltd * Author: Jingoo Han <jg1.han@samsung.com> @@ -20,7 +20,6 @@ #include <linux/of.h> #include <linux/of_gpio.h> #include <linux/platform_device.h> -#include <linux/platform_data/usb-ehci-s5p.h> #include <linux/usb/phy.h> #include <linux/usb/samsung_usb_phy.h> #include <linux/usb.h> @@ -29,7 +28,7 @@ #include "ehci.h" -#define DRIVER_DESC "EHCI s5p driver" +#define DRIVER_DESC "EHCI EXYNOS driver" #define EHCI_INSNREG00(base) (base + 0x90) #define EHCI_INSNREG00_ENA_INCR16 (0x1 << 25) @@ -40,21 +39,18 @@ (EHCI_INSNREG00_ENA_INCR16 | EHCI_INSNREG00_ENA_INCR8 | \ EHCI_INSNREG00_ENA_INCR4 | EHCI_INSNREG00_ENA_INCRX_ALIGN) -static const char hcd_name[] = "ehci-s5p"; -static struct hc_driver __read_mostly s5p_ehci_hc_driver; +static const char hcd_name[] = "ehci-exynos"; +static struct hc_driver __read_mostly exynos_ehci_hc_driver; -struct s5p_ehci_hcd { +struct exynos_ehci_hcd { struct clk *clk; struct usb_phy *phy; struct usb_otg *otg; - struct s5p_ehci_platdata *pdata; }; -static struct s5p_ehci_platdata empty_platdata; +#define to_exynos_ehci(hcd) (struct exynos_ehci_hcd *)(hcd_to_ehci(hcd)->priv) -#define to_s5p_ehci(hcd) (struct s5p_ehci_hcd *)(hcd_to_ehci(hcd)->priv) - -static void s5p_setup_vbus_gpio(struct platform_device *pdev) +static void exynos_setup_vbus_gpio(struct platform_device *pdev) { struct device *dev = &pdev->dev; int err; @@ -73,10 +69,9 @@ static void s5p_setup_vbus_gpio(struct platform_device *pdev) dev_err(dev, "can't request ehci vbus gpio %d", gpio); } -static int s5p_ehci_probe(struct platform_device *pdev) +static int exynos_ehci_probe(struct platform_device *pdev) { - struct s5p_ehci_platdata *pdata = dev_get_platdata(&pdev->dev); - struct s5p_ehci_hcd *s5p_ehci; + struct exynos_ehci_hcd *exynos_ehci; struct usb_hcd *hcd; struct ehci_hcd *ehci; struct resource *res; @@ -94,48 +89,41 @@ static int s5p_ehci_probe(struct platform_device *pdev) if (!pdev->dev.coherent_dma_mask) pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); - s5p_setup_vbus_gpio(pdev); + exynos_setup_vbus_gpio(pdev); - hcd = usb_create_hcd(&s5p_ehci_hc_driver, + hcd = usb_create_hcd(&exynos_ehci_hc_driver, &pdev->dev, dev_name(&pdev->dev)); if (!hcd) { dev_err(&pdev->dev, "Unable to create HCD\n"); return -ENOMEM; } - s5p_ehci = to_s5p_ehci(hcd); + exynos_ehci = to_exynos_ehci(hcd); if (of_device_is_compatible(pdev->dev.of_node, - "samsung,exynos5440-ehci")) { - s5p_ehci->pdata = &empty_platdata; + "samsung,exynos5440-ehci")) goto skip_phy; - } phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); if (IS_ERR(phy)) { - /* Fallback to pdata */ - if (!pdata) { - usb_put_hcd(hcd); - dev_warn(&pdev->dev, "no platform data or transceiver defined\n"); - return -EPROBE_DEFER; - } else { - s5p_ehci->pdata = pdata; - } + usb_put_hcd(hcd); + dev_warn(&pdev->dev, "no platform data or transceiver defined\n"); + return -EPROBE_DEFER; } else { - s5p_ehci->phy = phy; - s5p_ehci->otg = phy->otg; + exynos_ehci->phy = phy; + exynos_ehci->otg = phy->otg; } skip_phy: - s5p_ehci->clk = devm_clk_get(&pdev->dev, "usbhost"); + exynos_ehci->clk = devm_clk_get(&pdev->dev, "usbhost"); - if (IS_ERR(s5p_ehci->clk)) { + if (IS_ERR(exynos_ehci->clk)) { dev_err(&pdev->dev, "Failed to get usbhost clock\n"); - err = PTR_ERR(s5p_ehci->clk); + err = PTR_ERR(exynos_ehci->clk); goto fail_clk; } - err = clk_prepare_enable(s5p_ehci->clk); + err = clk_prepare_enable(exynos_ehci->clk); if (err) goto fail_clk; @@ -162,13 +150,11 @@ skip_phy: goto fail_io; } - if (s5p_ehci->otg) - s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self); + if (exynos_ehci->otg) + exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self); - if (s5p_ehci->phy) - usb_phy_init(s5p_ehci->phy); - else if (s5p_ehci->pdata->phy_init) - s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST); + if (exynos_ehci->phy) + usb_phy_init(exynos_ehci->phy); ehci = hcd_to_ehci(hcd); ehci->caps = hcd->regs; @@ -187,33 +173,29 @@ skip_phy: return 0; fail_add_hcd: - if (s5p_ehci->phy) - usb_phy_shutdown(s5p_ehci->phy); - else if (s5p_ehci->pdata->phy_exit) - s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST); + if (exynos_ehci->phy) + usb_phy_shutdown(exynos_ehci->phy); fail_io: - clk_disable_unprepare(s5p_ehci->clk); + clk_disable_unprepare(exynos_ehci->clk); fail_clk: usb_put_hcd(hcd); return err; } -static int s5p_ehci_remove(struct platform_device *pdev) +static int exynos_ehci_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - struct s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd); + struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd); usb_remove_hcd(hcd); - if (s5p_ehci->otg) - s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self); + if (exynos_ehci->otg) + exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self); - if (s5p_ehci->phy) - usb_phy_shutdown(s5p_ehci->phy); - else if (s5p_ehci->pdata->phy_exit) - s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST); + if (exynos_ehci->phy) + usb_phy_shutdown(exynos_ehci->phy); - clk_disable_unprepare(s5p_ehci->clk); + clk_disable_unprepare(exynos_ehci->clk); usb_put_hcd(hcd); @@ -221,45 +203,39 @@ static int s5p_ehci_remove(struct platform_device *pdev) } #ifdef CONFIG_PM -static int s5p_ehci_suspend(struct device *dev) +static int exynos_ehci_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd); - struct platform_device *pdev = to_platform_device(dev); + struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd); bool do_wakeup = device_may_wakeup(dev); int rc; rc = ehci_suspend(hcd, do_wakeup); - if (s5p_ehci->otg) - s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self); + if (exynos_ehci->otg) + exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self); - if (s5p_ehci->phy) - usb_phy_shutdown(s5p_ehci->phy); - else if (s5p_ehci->pdata->phy_exit) - s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST); + if (exynos_ehci->phy) + usb_phy_shutdown(exynos_ehci->phy); - clk_disable_unprepare(s5p_ehci->clk); + clk_disable_unprepare(exynos_ehci->clk); return rc; } -static int s5p_ehci_resume(struct device *dev) +static int exynos_ehci_resume(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd); - struct platform_device *pdev = to_platform_device(dev); + struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd); - clk_prepare_enable(s5p_ehci->clk); + clk_prepare_enable(exynos_ehci->clk); - if (s5p_ehci->otg) - s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self); + if (exynos_ehci->otg) + exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self); - if (s5p_ehci->phy) - usb_phy_init(s5p_ehci->phy); - else if (s5p_ehci->pdata->phy_init) - s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST); + if (exynos_ehci->phy) + usb_phy_init(exynos_ehci->phy); /* DMA burst Enable */ writel(EHCI_INSNREG00_ENABLE_DMA_BURST, EHCI_INSNREG00(hcd->regs)); @@ -268,13 +244,13 @@ static int s5p_ehci_resume(struct device *dev) return 0; } #else -#define s5p_ehci_suspend NULL -#define s5p_ehci_resume NULL +#define exynos_ehci_suspend NULL +#define exynos_ehci_resume NULL #endif -static const struct dev_pm_ops s5p_ehci_pm_ops = { - .suspend = s5p_ehci_suspend, - .resume = s5p_ehci_resume, +static const struct dev_pm_ops exynos_ehci_pm_ops = { + .suspend = exynos_ehci_suspend, + .resume = exynos_ehci_resume, }; #ifdef CONFIG_OF @@ -286,40 +262,40 @@ static const struct of_device_id exynos_ehci_match[] = { MODULE_DEVICE_TABLE(of, exynos_ehci_match); #endif -static struct platform_driver s5p_ehci_driver = { - .probe = s5p_ehci_probe, - .remove = s5p_ehci_remove, +static struct platform_driver exynos_ehci_driver = { + .probe = exynos_ehci_probe, + .remove = exynos_ehci_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { - .name = "s5p-ehci", + .name = "exynos-ehci", .owner = THIS_MODULE, - .pm = &s5p_ehci_pm_ops, + .pm = &exynos_ehci_pm_ops, .of_match_table = of_match_ptr(exynos_ehci_match), } }; -static const struct ehci_driver_overrides s5p_overrides __initdata = { - .extra_priv_size = sizeof(struct s5p_ehci_hcd), +static const struct ehci_driver_overrides exynos_overrides __initdata = { + .extra_priv_size = sizeof(struct exynos_ehci_hcd), }; -static int __init ehci_s5p_init(void) +static int __init ehci_exynos_init(void) { if (usb_disabled()) return -ENODEV; pr_info("%s: " DRIVER_DESC "\n", hcd_name); - ehci_init_driver(&s5p_ehci_hc_driver, &s5p_overrides); - return platform_driver_register(&s5p_ehci_driver); + ehci_init_driver(&exynos_ehci_hc_driver, &exynos_overrides); + return platform_driver_register(&exynos_ehci_driver); } -module_init(ehci_s5p_init); +module_init(ehci_exynos_init); -static void __exit ehci_s5p_cleanup(void) +static void __exit ehci_exynos_cleanup(void) { - platform_driver_unregister(&s5p_ehci_driver); + platform_driver_unregister(&exynos_ehci_driver); } -module_exit(ehci_s5p_cleanup); +module_exit(ehci_exynos_cleanup); MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_ALIAS("platform:s5p-ehci"); +MODULE_ALIAS("platform:exynos-ehci"); MODULE_AUTHOR("Jingoo Han"); MODULE_AUTHOR("Joonyoung Shim"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index f2407b2e8a99..a06d5012201f 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -57,7 +57,7 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver, pr_debug("initializing FSL-SOC USB Controller\n"); /* Need platform data for setup */ - pdata = (struct fsl_usb2_platform_data *)dev_get_platdata(&pdev->dev); + pdata = dev_get_platdata(&pdev->dev); if (!pdata) { dev_err(&pdev->dev, "No platform data for %s.\n", dev_name(&pdev->dev)); @@ -664,7 +664,7 @@ static const struct hc_driver ehci_fsl_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2 | HCD_MEMORY, + .flags = HCD_USB2 | HCD_MEMORY | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c index 83ab51af250f..b52a66ce92e8 100644 --- a/drivers/usb/host/ehci-grlib.c +++ b/drivers/usb/host/ehci-grlib.c @@ -43,7 +43,7 @@ static const struct hc_driver ehci_grlib_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 86ab9fd9fe9e..e8ba4c44223a 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -110,6 +110,9 @@ MODULE_PARM_DESC (ignore_oc, "ignore bogus hardware overcurrent indications"); #include "ehci.h" #include "pci-quirks.h" +static void compute_tt_budget(u8 budget_table[EHCI_BANDWIDTH_SIZE], + struct ehci_tt *tt); + /* * The MosChip MCS9990 controller updates its microframe counter * a little before the frame counter, and occasionally we will read @@ -484,6 +487,7 @@ static int ehci_init(struct usb_hcd *hcd) INIT_LIST_HEAD(&ehci->intr_qh_list); INIT_LIST_HEAD(&ehci->cached_itd_list); INIT_LIST_HEAD(&ehci->cached_sitd_list); + INIT_LIST_HEAD(&ehci->tt_list); if (HCC_PGM_FRAMELISTLEN(hcc_params)) { /* periodic schedule size can be smaller than default */ @@ -956,6 +960,7 @@ rescan: goto idle_timeout; /* BUG_ON(!list_empty(&stream->free_list)); */ + reserve_release_iso_bandwidth(ehci, stream, -1); kfree(stream); goto done; } @@ -982,6 +987,8 @@ idle_timeout: if (qh->clearing_tt) goto idle_timeout; if (list_empty (&qh->qtd_list)) { + if (qh->ps.bw_uperiod) + reserve_release_intr_bandwidth(ehci, qh, -1); qh_destroy(ehci, qh); break; } @@ -1022,7 +1029,6 @@ ehci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep) * the toggle bit in the QH. */ if (qh) { - usb_settoggle(qh->dev, epnum, is_out, 0); if (!list_empty(&qh->qtd_list)) { WARN_ONCE(1, "clear_halt for a busy endpoint\n"); } else { @@ -1030,6 +1036,7 @@ ehci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep) * while the QH is active. Unlink it now; * re-linking will call qh_refresh(). */ + usb_settoggle(qh->ps.udev, epnum, is_out, 0); qh->exception = 1; if (eptype == USB_ENDPOINT_XFER_BULK) start_unlink_async(ehci, qh); @@ -1048,6 +1055,19 @@ static int ehci_get_frame (struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ +/* Device addition and removal */ + +static void ehci_remove_device(struct usb_hcd *hcd, struct usb_device *udev) +{ + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + + spin_lock_irq(&ehci->lock); + drop_tt(udev); + spin_unlock_irq(&ehci->lock); +} + +/*-------------------------------------------------------------------------*/ + #ifdef CONFIG_PM /* suspend/resume, section 4.3 */ @@ -1075,6 +1095,14 @@ int ehci_suspend(struct usb_hcd *hcd, bool do_wakeup) clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); spin_unlock_irq(&ehci->lock); + synchronize_irq(hcd->irq); + + /* Check for race with a wakeup request */ + if (do_wakeup && HCD_WAKEUP_PENDING(hcd)) { + ehci_resume(hcd, false); + return -EBUSY; + } + return 0; } EXPORT_SYMBOL_GPL(ehci_suspend); @@ -1158,7 +1186,7 @@ static const struct hc_driver ehci_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations @@ -1191,6 +1219,11 @@ static const struct hc_driver ehci_hc_driver = { .bus_resume = ehci_bus_resume, .relinquish_port = ehci_relinquish_port, .port_handed_over = ehci_port_handed_over, + + /* + * device support + */ + .free_dev = ehci_remove_device, }; void ehci_init_driver(struct hc_driver *drv, @@ -1238,11 +1271,6 @@ MODULE_LICENSE ("GPL"); #define XILINX_OF_PLATFORM_DRIVER ehci_hcd_xilinx_of_driver #endif -#ifdef CONFIG_USB_W90X900_EHCI -#include "ehci-w90x900.c" -#define PLATFORM_DRIVER ehci_hcd_w90x900_driver -#endif - #ifdef CONFIG_USB_OCTEON_EHCI #include "ehci-octeon.c" #define PLATFORM_DRIVER ehci_octeon_driver diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c index 52a77734a225..c0fb6a8ae6a3 100644 --- a/drivers/usb/host/ehci-mem.c +++ b/drivers/usb/host/ehci-mem.c @@ -224,11 +224,11 @@ static int ehci_mem_init (struct ehci_hcd *ehci, gfp_t flags) hw->hw_next = EHCI_LIST_END(ehci); hw->hw_qtd_next = EHCI_LIST_END(ehci); hw->hw_alt_next = EHCI_LIST_END(ehci); - hw->hw_token &= ~QTD_STS_ACTIVE; ehci->dummy->hw = hw; for (i = 0; i < ehci->periodic_size; i++) - ehci->periodic[i] = ehci->dummy->qh_dma; + ehci->periodic[i] = cpu_to_hc32(ehci, + ehci->dummy->qh_dma); } else { for (i = 0; i < ehci->periodic_size; i++) ehci->periodic[i] = EHCI_LIST_END(ehci); diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c index 0f717dc688b7..f341651d6f6c 100644 --- a/drivers/usb/host/ehci-msm.c +++ b/drivers/usb/host/ehci-msm.c @@ -42,7 +42,6 @@ static const char hcd_name[] = "ehci-msm"; static struct hc_driver __read_mostly msm_hc_driver; -static struct usb_phy *phy; static int ehci_msm_reset(struct usb_hcd *hcd) { @@ -70,6 +69,7 @@ static int ehci_msm_probe(struct platform_device *pdev) { struct usb_hcd *hcd; struct resource *res; + struct usb_phy *phy; int ret; dev_dbg(&pdev->dev, "ehci_msm proble\n"); @@ -108,10 +108,14 @@ static int ehci_msm_probe(struct platform_device *pdev) * powering up VBUS, mapping of registers address space and power * management. */ - phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); + if (pdev->dev.of_node) + phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0); + else + phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); + if (IS_ERR(phy)) { dev_err(&pdev->dev, "unable to find transceiver\n"); - ret = -ENODEV; + ret = -EPROBE_DEFER; goto put_hcd; } @@ -121,6 +125,7 @@ static int ehci_msm_probe(struct platform_device *pdev) goto put_hcd; } + hcd->phy = phy; device_init_wakeup(&pdev->dev, 1); /* * OTG device parent of HCD takes care of putting @@ -147,7 +152,7 @@ static int ehci_msm_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); pm_runtime_set_suspended(&pdev->dev); - otg_set_host(phy->otg, NULL); + otg_set_host(hcd->phy->otg, NULL); /* FIXME: need to call usb_remove_hcd() here? */ @@ -186,12 +191,19 @@ static const struct dev_pm_ops ehci_msm_dev_pm_ops = { .resume = ehci_msm_pm_resume, }; +static struct of_device_id msm_ehci_dt_match[] = { + { .compatible = "qcom,ehci-host", }, + {} +}; +MODULE_DEVICE_TABLE(of, msm_ehci_dt_match); + static struct platform_driver ehci_msm_driver = { .probe = ehci_msm_probe, .remove = ehci_msm_remove, .driver = { .name = "msm_hsusb_host", .pm = &ehci_msm_dev_pm_ops, + .of_match_table = msm_ehci_dt_match, }, }; diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 35cdbd88bbbe..417c10da9450 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -96,7 +96,7 @@ static const struct hc_driver mv_ehci_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c index 45cc00158412..ab0397e4d8f3 100644 --- a/drivers/usb/host/ehci-octeon.c +++ b/drivers/usb/host/ehci-octeon.c @@ -51,7 +51,7 @@ static const struct hc_driver ehci_octeon_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 854c2ec7b699..3e86bf4371b3 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -58,8 +58,6 @@ static int ehci_pci_setup(struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci(hcd); struct pci_dev *pdev = to_pci_dev(hcd->self.controller); - struct pci_dev *p_smbus; - u8 rev; u32 temp; int retval; @@ -175,22 +173,12 @@ static int ehci_pci_setup(struct usb_hcd *hcd) /* SB600 and old version of SB700 have a bug in EHCI controller, * which causes usb devices lose response in some cases. */ - if ((pdev->device == 0x4386) || (pdev->device == 0x4396)) { - p_smbus = pci_get_device(PCI_VENDOR_ID_ATI, - PCI_DEVICE_ID_ATI_SBX00_SMBUS, - NULL); - if (!p_smbus) - break; - rev = p_smbus->revision; - if ((pdev->device == 0x4386) || (rev == 0x3a) - || (rev == 0x3b)) { - u8 tmp; - ehci_info(ehci, "applying AMD SB600/SB700 USB " - "freeze workaround\n"); - pci_read_config_byte(pdev, 0x53, &tmp); - pci_write_config_byte(pdev, 0x53, tmp | (1<<3)); - } - pci_dev_put(p_smbus); + if ((pdev->device == 0x4386 || pdev->device == 0x4396) && + usb_amd_hang_symptom_quirk()) { + u8 tmp; + ehci_info(ehci, "applying AMD SB600/SB700 USB freeze workaround\n"); + pci_read_config_byte(pdev, 0x53, &tmp); + pci_write_config_byte(pdev, 0x53, tmp | (1<<3)); } break; case PCI_VENDOR_ID_NETMOS: diff --git a/drivers/usb/host/ehci-pmcmsp.c b/drivers/usb/host/ehci-pmcmsp.c index 601e208bd782..893b707f0000 100644 --- a/drivers/usb/host/ehci-pmcmsp.c +++ b/drivers/usb/host/ehci-pmcmsp.c @@ -286,7 +286,7 @@ static const struct hc_driver ehci_msp_hc_driver = { #else .irq = ehci_irq, #endif - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c index 932293fa32de..6cc5567bf9c8 100644 --- a/drivers/usb/host/ehci-ppc-of.c +++ b/drivers/usb/host/ehci-ppc-of.c @@ -28,7 +28,7 @@ static const struct hc_driver ehci_ppc_of_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index fd983771b025..8188542ba17e 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -71,7 +71,7 @@ static const struct hc_driver ps3_ehci_hc_driver = { .product_desc = "PS3 EHCI Host Controller", .hcd_priv_size = sizeof(struct ehci_hcd), .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, .reset = ps3_ehci_hc_reset, .start = ehci_run, .stop = ehci_stop, diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index a7f776a13eb1..db05bd8ee9d5 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -105,9 +105,9 @@ qh_update (struct ehci_hcd *ehci, struct ehci_qh *qh, struct ehci_qtd *qtd) is_out = qh->is_out; epnum = (hc32_to_cpup(ehci, &hw->hw_info1) >> 8) & 0x0f; - if (unlikely (!usb_gettoggle (qh->dev, epnum, is_out))) { + if (unlikely(!usb_gettoggle(qh->ps.udev, epnum, is_out))) { hw->hw_token &= ~cpu_to_hc32(ehci, QTD_TOGGLE); - usb_settoggle (qh->dev, epnum, is_out, 1); + usb_settoggle(qh->ps.udev, epnum, is_out, 1); } } @@ -247,8 +247,6 @@ static int qtd_copy_status ( static void ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status) -__releases(ehci->lock) -__acquires(ehci->lock) { if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) { /* ... update hc-wide periodic stats */ @@ -274,11 +272,8 @@ __acquires(ehci->lock) urb->actual_length, urb->transfer_buffer_length); #endif - /* complete() can reenter this HCD */ usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb); - spin_unlock (&ehci->lock); usb_hcd_giveback_urb(ehci_to_hcd(ehci), urb, status); - spin_lock (&ehci->lock); } static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh); @@ -802,26 +797,35 @@ qh_make ( * For control/bulk requests, the HC or TT handles these. */ if (type == PIPE_INTERRUPT) { - qh->usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH, + unsigned tmp; + + qh->ps.usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH, is_input, 0, hb_mult(maxp) * max_packet(maxp))); - qh->start = NO_FRAME; + qh->ps.phase = NO_FRAME; if (urb->dev->speed == USB_SPEED_HIGH) { - qh->c_usecs = 0; + qh->ps.c_usecs = 0; qh->gap_uf = 0; - qh->period = urb->interval >> 3; - if (qh->period == 0 && urb->interval != 1) { + if (urb->interval > 1 && urb->interval < 8) { /* NOTE interval 2 or 4 uframes could work. * But interval 1 scheduling is simpler, and * includes high bandwidth. */ urb->interval = 1; - } else if (qh->period > ehci->periodic_size) { - qh->period = ehci->periodic_size; - urb->interval = qh->period << 3; + } else if (urb->interval > ehci->periodic_size << 3) { + urb->interval = ehci->periodic_size << 3; } + qh->ps.period = urb->interval >> 3; + + /* period for bandwidth allocation */ + tmp = min_t(unsigned, EHCI_BANDWIDTH_SIZE, + 1 << (urb->ep->desc.bInterval - 1)); + + /* Allow urb->interval to override */ + qh->ps.bw_uperiod = min_t(unsigned, tmp, urb->interval); + qh->ps.bw_period = qh->ps.bw_uperiod >> 3; } else { int think_time; @@ -831,27 +835,35 @@ qh_make ( /* FIXME this just approximates SPLIT/CSPLIT times */ if (is_input) { // SPLIT, gap, CSPLIT+DATA - qh->c_usecs = qh->usecs + HS_USECS (0); - qh->usecs = HS_USECS (1); + qh->ps.c_usecs = qh->ps.usecs + HS_USECS(0); + qh->ps.usecs = HS_USECS(1); } else { // SPLIT+DATA, gap, CSPLIT - qh->usecs += HS_USECS (1); - qh->c_usecs = HS_USECS (0); + qh->ps.usecs += HS_USECS(1); + qh->ps.c_usecs = HS_USECS(0); } think_time = tt ? tt->think_time : 0; - qh->tt_usecs = NS_TO_US (think_time + + qh->ps.tt_usecs = NS_TO_US(think_time + usb_calc_bus_time (urb->dev->speed, is_input, 0, max_packet (maxp))); - qh->period = urb->interval; - if (qh->period > ehci->periodic_size) { - qh->period = ehci->periodic_size; - urb->interval = qh->period; - } + if (urb->interval > ehci->periodic_size) + urb->interval = ehci->periodic_size; + qh->ps.period = urb->interval; + + /* period for bandwidth allocation */ + tmp = min_t(unsigned, EHCI_BANDWIDTH_FRAMES, + urb->ep->desc.bInterval); + tmp = rounddown_pow_of_two(tmp); + + /* Allow urb->interval to override */ + qh->ps.bw_period = min_t(unsigned, tmp, urb->interval); + qh->ps.bw_uperiod = qh->ps.bw_period << 3; } } /* support for tt scheduling, and access to toggles */ - qh->dev = urb->dev; + qh->ps.udev = urb->dev; + qh->ps.ep = urb->ep; /* using TT? */ switch (urb->dev->speed) { diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 85dd24ed97a6..e113fd73aeae 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -103,83 +103,210 @@ static void periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr) *hw_p = *shadow_next_periodic(ehci, &here, Q_NEXT_TYPE(ehci, *hw_p)); else - *hw_p = ehci->dummy->qh_dma; + *hw_p = cpu_to_hc32(ehci, ehci->dummy->qh_dma); } -/* how many of the uframe's 125 usecs are allocated? */ -static unsigned short -periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe) +/*-------------------------------------------------------------------------*/ + +/* Bandwidth and TT management */ + +/* Find the TT data structure for this device; create it if necessary */ +static struct ehci_tt *find_tt(struct usb_device *udev) { - __hc32 *hw_p = &ehci->periodic [frame]; - union ehci_shadow *q = &ehci->pshadow [frame]; - unsigned usecs = 0; - struct ehci_qh_hw *hw; - - while (q->ptr) { - switch (hc32_to_cpu(ehci, Q_NEXT_TYPE(ehci, *hw_p))) { - case Q_TYPE_QH: - hw = q->qh->hw; - /* is it in the S-mask? */ - if (hw->hw_info2 & cpu_to_hc32(ehci, 1 << uframe)) - usecs += q->qh->usecs; - /* ... or C-mask? */ - if (hw->hw_info2 & cpu_to_hc32(ehci, - 1 << (8 + uframe))) - usecs += q->qh->c_usecs; - hw_p = &hw->hw_next; - q = &q->qh->qh_next; - break; - // case Q_TYPE_FSTN: - default: - /* for "save place" FSTNs, count the relevant INTR - * bandwidth from the previous frame - */ - if (q->fstn->hw_prev != EHCI_LIST_END(ehci)) { - ehci_dbg (ehci, "ignoring FSTN cost ...\n"); - } - hw_p = &q->fstn->hw_next; - q = &q->fstn->fstn_next; - break; - case Q_TYPE_ITD: - if (q->itd->hw_transaction[uframe]) - usecs += q->itd->stream->usecs; - hw_p = &q->itd->hw_next; - q = &q->itd->itd_next; - break; - case Q_TYPE_SITD: - /* is it in the S-mask? (count SPLIT, DATA) */ - if (q->sitd->hw_uframe & cpu_to_hc32(ehci, - 1 << uframe)) { - if (q->sitd->hw_fullspeed_ep & - cpu_to_hc32(ehci, 1<<31)) - usecs += q->sitd->stream->usecs; - else /* worst case for OUT start-split */ - usecs += HS_USECS_ISO (188); - } + struct usb_tt *utt = udev->tt; + struct ehci_tt *tt, **tt_index, **ptt; + unsigned port; + bool allocated_index = false; + + if (!utt) + return NULL; /* Not below a TT */ + + /* + * Find/create our data structure. + * For hubs with a single TT, we get it directly. + * For hubs with multiple TTs, there's an extra level of pointers. + */ + tt_index = NULL; + if (utt->multi) { + tt_index = utt->hcpriv; + if (!tt_index) { /* Create the index array */ + tt_index = kzalloc(utt->hub->maxchild * + sizeof(*tt_index), GFP_ATOMIC); + if (!tt_index) + return ERR_PTR(-ENOMEM); + utt->hcpriv = tt_index; + allocated_index = true; + } + port = udev->ttport - 1; + ptt = &tt_index[port]; + } else { + port = 0; + ptt = (struct ehci_tt **) &utt->hcpriv; + } + + tt = *ptt; + if (!tt) { /* Create the ehci_tt */ + struct ehci_hcd *ehci = + hcd_to_ehci(bus_to_hcd(udev->bus)); - /* ... C-mask? (count CSPLIT, DATA) */ - if (q->sitd->hw_uframe & - cpu_to_hc32(ehci, 1 << (8 + uframe))) { - /* worst case for IN complete-split */ - usecs += q->sitd->stream->c_usecs; + tt = kzalloc(sizeof(*tt), GFP_ATOMIC); + if (!tt) { + if (allocated_index) { + utt->hcpriv = NULL; + kfree(tt_index); } + return ERR_PTR(-ENOMEM); + } + list_add_tail(&tt->tt_list, &ehci->tt_list); + INIT_LIST_HEAD(&tt->ps_list); + tt->usb_tt = utt; + tt->tt_port = port; + *ptt = tt; + } - hw_p = &q->sitd->hw_next; - q = &q->sitd->sitd_next; - break; + return tt; +} + +/* Release the TT above udev, if it's not in use */ +static void drop_tt(struct usb_device *udev) +{ + struct usb_tt *utt = udev->tt; + struct ehci_tt *tt, **tt_index, **ptt; + int cnt, i; + + if (!utt || !utt->hcpriv) + return; /* Not below a TT, or never allocated */ + + cnt = 0; + if (utt->multi) { + tt_index = utt->hcpriv; + ptt = &tt_index[udev->ttport - 1]; + + /* How many entries are left in tt_index? */ + for (i = 0; i < utt->hub->maxchild; ++i) + cnt += !!tt_index[i]; + } else { + tt_index = NULL; + ptt = (struct ehci_tt **) &utt->hcpriv; + } + + tt = *ptt; + if (!tt || !list_empty(&tt->ps_list)) + return; /* never allocated, or still in use */ + + list_del(&tt->tt_list); + *ptt = NULL; + kfree(tt); + if (cnt == 1) { + utt->hcpriv = NULL; + kfree(tt_index); + } +} + +static void bandwidth_dbg(struct ehci_hcd *ehci, int sign, char *type, + struct ehci_per_sched *ps) +{ + dev_dbg(&ps->udev->dev, + "ep %02x: %s %s @ %u+%u (%u.%u+%u) [%u/%u us] mask %04x\n", + ps->ep->desc.bEndpointAddress, + (sign >= 0 ? "reserve" : "release"), type, + (ps->bw_phase << 3) + ps->phase_uf, ps->bw_uperiod, + ps->phase, ps->phase_uf, ps->period, + ps->usecs, ps->c_usecs, ps->cs_mask); +} + +static void reserve_release_intr_bandwidth(struct ehci_hcd *ehci, + struct ehci_qh *qh, int sign) +{ + unsigned start_uf; + unsigned i, j, m; + int usecs = qh->ps.usecs; + int c_usecs = qh->ps.c_usecs; + int tt_usecs = qh->ps.tt_usecs; + struct ehci_tt *tt; + + if (qh->ps.phase == NO_FRAME) /* Bandwidth wasn't reserved */ + return; + start_uf = qh->ps.bw_phase << 3; + + bandwidth_dbg(ehci, sign, "intr", &qh->ps); + + if (sign < 0) { /* Release bandwidth */ + usecs = -usecs; + c_usecs = -c_usecs; + tt_usecs = -tt_usecs; + } + + /* Entire transaction (high speed) or start-split (full/low speed) */ + for (i = start_uf + qh->ps.phase_uf; i < EHCI_BANDWIDTH_SIZE; + i += qh->ps.bw_uperiod) + ehci->bandwidth[i] += usecs; + + /* Complete-split (full/low speed) */ + if (qh->ps.c_usecs) { + /* NOTE: adjustments needed for FSTN */ + for (i = start_uf; i < EHCI_BANDWIDTH_SIZE; + i += qh->ps.bw_uperiod) { + for ((j = 2, m = 1 << (j+8)); j < 8; (++j, m <<= 1)) { + if (qh->ps.cs_mask & m) + ehci->bandwidth[i+j] += c_usecs; + } } } -#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG) - if (usecs > ehci->uframe_periodic_max) - ehci_err (ehci, "uframe %d sched overrun: %d usecs\n", - frame * 8 + uframe, usecs); -#endif - return usecs; + + /* FS/LS bus bandwidth */ + if (tt_usecs) { + tt = find_tt(qh->ps.udev); + if (sign > 0) + list_add_tail(&qh->ps.ps_list, &tt->ps_list); + else + list_del(&qh->ps.ps_list); + + for (i = start_uf >> 3; i < EHCI_BANDWIDTH_FRAMES; + i += qh->ps.bw_period) + tt->bandwidth[i] += tt_usecs; + } } /*-------------------------------------------------------------------------*/ -static int same_tt (struct usb_device *dev1, struct usb_device *dev2) +static void compute_tt_budget(u8 budget_table[EHCI_BANDWIDTH_SIZE], + struct ehci_tt *tt) +{ + struct ehci_per_sched *ps; + unsigned uframe, uf, x; + u8 *budget_line; + + if (!tt) + return; + memset(budget_table, 0, EHCI_BANDWIDTH_SIZE); + + /* Add up the contributions from all the endpoints using this TT */ + list_for_each_entry(ps, &tt->ps_list, ps_list) { + for (uframe = ps->bw_phase << 3; uframe < EHCI_BANDWIDTH_SIZE; + uframe += ps->bw_uperiod) { + budget_line = &budget_table[uframe]; + x = ps->tt_usecs; + + /* propagate the time forward */ + for (uf = ps->phase_uf; uf < 8; ++uf) { + x += budget_line[uf]; + + /* Each microframe lasts 125 us */ + if (x <= 125) { + budget_line[uf] = x; + break; + } else { + budget_line[uf] = 125; + x -= 125; + } + } + } + } +} + +static int __maybe_unused same_tt(struct usb_device *dev1, + struct usb_device *dev2) { if (!dev1->tt || !dev2->tt) return 0; @@ -227,68 +354,6 @@ static inline void carryover_tt_bandwidth(unsigned short tt_usecs[8]) } } -/* How many of the tt's periodic downstream 1000 usecs are allocated? - * - * While this measures the bandwidth in terms of usecs/uframe, - * the low/fullspeed bus has no notion of uframes, so any particular - * low/fullspeed transfer can "carry over" from one uframe to the next, - * since the TT just performs downstream transfers in sequence. - * - * For example two separate 100 usec transfers can start in the same uframe, - * and the second one would "carry over" 75 usecs into the next uframe. - */ -static void -periodic_tt_usecs ( - struct ehci_hcd *ehci, - struct usb_device *dev, - unsigned frame, - unsigned short tt_usecs[8] -) -{ - __hc32 *hw_p = &ehci->periodic [frame]; - union ehci_shadow *q = &ehci->pshadow [frame]; - unsigned char uf; - - memset(tt_usecs, 0, 16); - - while (q->ptr) { - switch (hc32_to_cpu(ehci, Q_NEXT_TYPE(ehci, *hw_p))) { - case Q_TYPE_ITD: - hw_p = &q->itd->hw_next; - q = &q->itd->itd_next; - continue; - case Q_TYPE_QH: - if (same_tt(dev, q->qh->dev)) { - uf = tt_start_uframe(ehci, q->qh->hw->hw_info2); - tt_usecs[uf] += q->qh->tt_usecs; - } - hw_p = &q->qh->hw->hw_next; - q = &q->qh->qh_next; - continue; - case Q_TYPE_SITD: - if (same_tt(dev, q->sitd->urb->dev)) { - uf = tt_start_uframe(ehci, q->sitd->hw_uframe); - tt_usecs[uf] += q->sitd->stream->tt_usecs; - } - hw_p = &q->sitd->hw_next; - q = &q->sitd->sitd_next; - continue; - // case Q_TYPE_FSTN: - default: - ehci_dbg(ehci, "ignoring periodic frame %d FSTN\n", - frame); - hw_p = &q->fstn->hw_next; - q = &q->fstn->fstn_next; - } - } - - carryover_tt_bandwidth(tt_usecs); - - if (max_tt_usecs[7] < tt_usecs[7]) - ehci_err(ehci, "frame %d tt sched overrun: %d usecs\n", - frame, tt_usecs[7] - max_tt_usecs[7]); -} - /* * Return true if the device's tt's downstream bus is available for a * periodic transfer of the specified length (usecs), starting at the @@ -312,20 +377,29 @@ periodic_tt_usecs ( */ static int tt_available ( struct ehci_hcd *ehci, - unsigned period, - struct usb_device *dev, + struct ehci_per_sched *ps, + struct ehci_tt *tt, unsigned frame, - unsigned uframe, - u16 usecs + unsigned uframe ) { + unsigned period = ps->bw_period; + unsigned usecs = ps->tt_usecs; + if ((period == 0) || (uframe >= 7)) /* error */ return 0; - for (; frame < ehci->periodic_size; frame += period) { - unsigned short tt_usecs[8]; + for (frame &= period - 1; frame < EHCI_BANDWIDTH_FRAMES; + frame += period) { + unsigned i, uf; + unsigned short tt_usecs[8]; - periodic_tt_usecs (ehci, dev, frame, tt_usecs); + if (tt->bandwidth[frame] + usecs > 900) + return 0; + + uf = frame << 3; + for (i = 0; i < 8; (++i, ++uf)) + tt_usecs[i] = ehci->tt_budget[uf]; if (max_tt_usecs[uframe] <= tt_usecs[uframe]) return 0; @@ -337,7 +411,7 @@ static int tt_available ( */ if (125 < usecs) { int ufs = (usecs / 125); - int i; + for (i = uframe; i < (uframe + ufs) && i < 8; i++) if (0 < tt_usecs[i]) return 0; @@ -391,7 +465,7 @@ static int tt_no_collision ( continue; case Q_TYPE_QH: hw = here.qh->hw; - if (same_tt (dev, here.qh->dev)) { + if (same_tt(dev, here.qh->ps.udev)) { u32 mask; mask = hc32_to_cpu(ehci, @@ -471,19 +545,19 @@ static void disable_periodic(struct ehci_hcd *ehci) static void qh_link_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh) { unsigned i; - unsigned period = qh->period; + unsigned period = qh->ps.period; - dev_dbg (&qh->dev->dev, + dev_dbg(&qh->ps.udev->dev, "link qh%d-%04x/%p start %d [%d/%d us]\n", period, hc32_to_cpup(ehci, &qh->hw->hw_info2) & (QH_CMASK | QH_SMASK), - qh, qh->start, qh->usecs, qh->c_usecs); + qh, qh->ps.phase, qh->ps.usecs, qh->ps.c_usecs); /* high bandwidth, or otherwise every microframe */ if (period == 0) period = 1; - for (i = qh->start; i < ehci->periodic_size; i += period) { + for (i = qh->ps.phase; i < ehci->periodic_size; i += period) { union ehci_shadow *prev = &ehci->pshadow[i]; __hc32 *hw_p = &ehci->periodic[i]; union ehci_shadow here = *prev; @@ -503,7 +577,7 @@ static void qh_link_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh) * enables sharing interior tree nodes */ while (here.ptr && qh != here.qh) { - if (qh->period > here.qh->period) + if (qh->ps.period > here.qh->ps.period) break; prev = &here.qh->qh_next; hw_p = &here.qh->hw->hw_next; @@ -523,10 +597,10 @@ static void qh_link_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh) qh->xacterrs = 0; qh->exception = 0; - /* update per-qh bandwidth for usbfs */ - ehci_to_hcd(ehci)->self.bandwidth_allocated += qh->period - ? ((qh->usecs + qh->c_usecs) / qh->period) - : (qh->usecs * 8); + /* update per-qh bandwidth for debugfs */ + ehci_to_hcd(ehci)->self.bandwidth_allocated += qh->ps.bw_period + ? ((qh->ps.usecs + qh->ps.c_usecs) / qh->ps.bw_period) + : (qh->ps.usecs * 8); list_add(&qh->intr_node, &ehci->intr_qh_list); @@ -556,22 +630,21 @@ static void qh_unlink_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh) */ /* high bandwidth, or otherwise part of every microframe */ - if ((period = qh->period) == 0) - period = 1; + period = qh->ps.period ? : 1; - for (i = qh->start; i < ehci->periodic_size; i += period) + for (i = qh->ps.phase; i < ehci->periodic_size; i += period) periodic_unlink (ehci, i, qh); - /* update per-qh bandwidth for usbfs */ - ehci_to_hcd(ehci)->self.bandwidth_allocated -= qh->period - ? ((qh->usecs + qh->c_usecs) / qh->period) - : (qh->usecs * 8); + /* update per-qh bandwidth for debugfs */ + ehci_to_hcd(ehci)->self.bandwidth_allocated -= qh->ps.bw_period + ? ((qh->ps.usecs + qh->ps.c_usecs) / qh->ps.bw_period) + : (qh->ps.usecs * 8); - dev_dbg (&qh->dev->dev, + dev_dbg(&qh->ps.udev->dev, "unlink qh%d-%04x/%p start %d [%d/%d us]\n", - qh->period, + qh->ps.period, hc32_to_cpup(ehci, &qh->hw->hw_info2) & (QH_CMASK | QH_SMASK), - qh, qh->start, qh->usecs, qh->c_usecs); + qh, qh->ps.phase, qh->ps.usecs, qh->ps.c_usecs); /* qh->qh_next still "live" to HC */ qh->qh_state = QH_STATE_UNLINK; @@ -694,11 +767,9 @@ static int check_period ( struct ehci_hcd *ehci, unsigned frame, unsigned uframe, - unsigned period, + unsigned uperiod, unsigned usecs ) { - int claimed; - /* complete split running into next frame? * given FSTN support, we could sometimes check... */ @@ -708,25 +779,10 @@ static int check_period ( /* convert "usecs we need" to "max already claimed" */ usecs = ehci->uframe_periodic_max - usecs; - /* we "know" 2 and 4 uframe intervals were rejected; so - * for period 0, check _every_ microframe in the schedule. - */ - if (unlikely (period == 0)) { - do { - for (uframe = 0; uframe < 7; uframe++) { - claimed = periodic_usecs (ehci, frame, uframe); - if (claimed > usecs) - return 0; - } - } while ((frame += 1) < ehci->periodic_size); - - /* just check the specified uframe, at that period */ - } else { - do { - claimed = periodic_usecs (ehci, frame, uframe); - if (claimed > usecs) - return 0; - } while ((frame += period) < ehci->periodic_size); + for (uframe += frame << 3; uframe < EHCI_BANDWIDTH_SIZE; + uframe += uperiod) { + if (ehci->bandwidth[uframe] > usecs) + return 0; } // success! @@ -737,40 +793,40 @@ static int check_intr_schedule ( struct ehci_hcd *ehci, unsigned frame, unsigned uframe, - const struct ehci_qh *qh, - __hc32 *c_maskp + struct ehci_qh *qh, + unsigned *c_maskp, + struct ehci_tt *tt ) { int retval = -ENOSPC; u8 mask = 0; - if (qh->c_usecs && uframe >= 6) /* FSTN territory? */ + if (qh->ps.c_usecs && uframe >= 6) /* FSTN territory? */ goto done; - if (!check_period (ehci, frame, uframe, qh->period, qh->usecs)) + if (!check_period(ehci, frame, uframe, qh->ps.bw_uperiod, qh->ps.usecs)) goto done; - if (!qh->c_usecs) { + if (!qh->ps.c_usecs) { retval = 0; *c_maskp = 0; goto done; } #ifdef CONFIG_USB_EHCI_TT_NEWSCHED - if (tt_available (ehci, qh->period, qh->dev, frame, uframe, - qh->tt_usecs)) { + if (tt_available(ehci, &qh->ps, tt, frame, uframe)) { unsigned i; /* TODO : this may need FSTN for SSPLIT in uframe 5. */ - for (i=uframe+1; i<8 && i<uframe+4; i++) - if (!check_period (ehci, frame, i, - qh->period, qh->c_usecs)) + for (i = uframe+2; i < 8 && i <= uframe+4; i++) + if (!check_period(ehci, frame, i, + qh->ps.bw_uperiod, qh->ps.c_usecs)) goto done; else mask |= 1 << i; retval = 0; - *c_maskp = cpu_to_hc32(ehci, mask << 8); + *c_maskp = mask; } #else /* Make sure this tt's buffer is also available for CSPLITs. @@ -781,15 +837,15 @@ static int check_intr_schedule ( * one smart pass... */ mask = 0x03 << (uframe + qh->gap_uf); - *c_maskp = cpu_to_hc32(ehci, mask << 8); + *c_maskp = mask; mask |= 1 << uframe; - if (tt_no_collision (ehci, qh->period, qh->dev, frame, mask)) { - if (!check_period (ehci, frame, uframe + qh->gap_uf + 1, - qh->period, qh->c_usecs)) + if (tt_no_collision(ehci, qh->ps.bw_period, qh->ps.udev, frame, mask)) { + if (!check_period(ehci, frame, uframe + qh->gap_uf + 1, + qh->ps.bw_uperiod, qh->ps.c_usecs)) goto done; - if (!check_period (ehci, frame, uframe + qh->gap_uf, - qh->period, qh->c_usecs)) + if (!check_period(ehci, frame, uframe + qh->gap_uf, + qh->ps.bw_uperiod, qh->ps.c_usecs)) goto done; retval = 0; } @@ -803,62 +859,67 @@ done: */ static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh) { - int status; + int status = 0; unsigned uframe; - __hc32 c_mask; - unsigned frame; /* 0..(qh->period - 1), or NO_FRAME */ + unsigned c_mask; struct ehci_qh_hw *hw = qh->hw; + struct ehci_tt *tt; hw->hw_next = EHCI_LIST_END(ehci); - frame = qh->start; /* reuse the previous schedule slots, if we can */ - if (frame < qh->period) { - uframe = ffs(hc32_to_cpup(ehci, &hw->hw_info2) & QH_SMASK); - status = check_intr_schedule (ehci, frame, --uframe, - qh, &c_mask); - } else { - uframe = 0; - c_mask = 0; - status = -ENOSPC; + if (qh->ps.phase != NO_FRAME) { + ehci_dbg(ehci, "reused qh %p schedule\n", qh); + return 0; + } + + uframe = 0; + c_mask = 0; + tt = find_tt(qh->ps.udev); + if (IS_ERR(tt)) { + status = PTR_ERR(tt); + goto done; } + compute_tt_budget(ehci->tt_budget, tt); /* else scan the schedule to find a group of slots such that all * uframes have enough periodic bandwidth available. */ - if (status) { - /* "normal" case, uframing flexible except with splits */ - if (qh->period) { - int i; - - for (i = qh->period; status && i > 0; --i) { - frame = ++ehci->random_frame % qh->period; - for (uframe = 0; uframe < 8; uframe++) { - status = check_intr_schedule (ehci, - frame, uframe, qh, - &c_mask); - if (status == 0) - break; - } + /* "normal" case, uframing flexible except with splits */ + if (qh->ps.bw_period) { + int i; + unsigned frame; + + for (i = qh->ps.bw_period; i > 0; --i) { + frame = ++ehci->random_frame & (qh->ps.bw_period - 1); + for (uframe = 0; uframe < 8; uframe++) { + status = check_intr_schedule(ehci, + frame, uframe, qh, &c_mask, tt); + if (status == 0) + goto got_it; } - - /* qh->period == 0 means every uframe */ - } else { - frame = 0; - status = check_intr_schedule (ehci, 0, 0, qh, &c_mask); } - if (status) - goto done; - qh->start = frame; - /* reset S-frame and (maybe) C-frame masks */ - hw->hw_info2 &= cpu_to_hc32(ehci, ~(QH_CMASK | QH_SMASK)); - hw->hw_info2 |= qh->period - ? cpu_to_hc32(ehci, 1 << uframe) - : cpu_to_hc32(ehci, QH_SMASK); - hw->hw_info2 |= c_mask; - } else - ehci_dbg (ehci, "reused qh %p schedule\n", qh); + /* qh->ps.bw_period == 0 means every uframe */ + } else { + status = check_intr_schedule(ehci, 0, 0, qh, &c_mask, tt); + } + if (status) + goto done; + + got_it: + qh->ps.phase = (qh->ps.period ? ehci->random_frame & + (qh->ps.period - 1) : 0); + qh->ps.bw_phase = qh->ps.phase & (qh->ps.bw_period - 1); + qh->ps.phase_uf = uframe; + qh->ps.cs_mask = qh->ps.period ? + (c_mask << 8) | (1 << uframe) : + QH_SMASK; + + /* reset S-frame and (maybe) C-frame masks */ + hw->hw_info2 &= cpu_to_hc32(ehci, ~(QH_CMASK | QH_SMASK)); + hw->hw_info2 |= cpu_to_hc32(ehci, qh->ps.cs_mask); + reserve_release_intr_bandwidth(ehci, qh, 1); done: return status; @@ -969,7 +1030,8 @@ iso_stream_alloc (gfp_t mem_flags) if (likely (stream != NULL)) { INIT_LIST_HEAD(&stream->td_list); INIT_LIST_HEAD(&stream->free_list); - stream->next_uframe = -1; + stream->next_uframe = NO_FRAME; + stream->ps.phase = NO_FRAME; } return stream; } @@ -978,25 +1040,24 @@ static void iso_stream_init ( struct ehci_hcd *ehci, struct ehci_iso_stream *stream, - struct usb_device *dev, - int pipe, - unsigned interval + struct urb *urb ) { static const u8 smask_out [] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f }; + struct usb_device *dev = urb->dev; u32 buf1; unsigned epnum, maxp; int is_input; - long bandwidth; + unsigned tmp; /* * this might be a "high bandwidth" highspeed endpoint, * as encoded in the ep descriptor's wMaxPacket field */ - epnum = usb_pipeendpoint (pipe); - is_input = usb_pipein (pipe) ? USB_DIR_IN : 0; - maxp = usb_maxpacket(dev, pipe, !is_input); + epnum = usb_pipeendpoint(urb->pipe); + is_input = usb_pipein(urb->pipe) ? USB_DIR_IN : 0; + maxp = usb_endpoint_maxp(&urb->ep->desc); if (is_input) { buf1 = (1 << 11); } else { @@ -1020,9 +1081,19 @@ iso_stream_init ( /* usbfs wants to report the average usecs per frame tied up * when transfers on this endpoint are scheduled ... */ - stream->usecs = HS_USECS_ISO (maxp); - bandwidth = stream->usecs * 8; - bandwidth /= interval; + stream->ps.usecs = HS_USECS_ISO(maxp); + + /* period for bandwidth allocation */ + tmp = min_t(unsigned, EHCI_BANDWIDTH_SIZE, + 1 << (urb->ep->desc.bInterval - 1)); + + /* Allow urb->interval to override */ + stream->ps.bw_uperiod = min_t(unsigned, tmp, urb->interval); + + stream->uperiod = urb->interval; + stream->ps.period = urb->interval >> 3; + stream->bandwidth = stream->ps.usecs * 8 / + stream->ps.bw_uperiod; } else { u32 addr; @@ -1036,36 +1107,46 @@ iso_stream_init ( addr |= dev->tt->hub->devnum << 16; addr |= epnum << 8; addr |= dev->devnum; - stream->usecs = HS_USECS_ISO (maxp); + stream->ps.usecs = HS_USECS_ISO(maxp); think_time = dev->tt ? dev->tt->think_time : 0; - stream->tt_usecs = NS_TO_US (think_time + usb_calc_bus_time ( + stream->ps.tt_usecs = NS_TO_US(think_time + usb_calc_bus_time( dev->speed, is_input, 1, maxp)); hs_transfers = max (1u, (maxp + 187) / 188); if (is_input) { u32 tmp; addr |= 1 << 31; - stream->c_usecs = stream->usecs; - stream->usecs = HS_USECS_ISO (1); - stream->raw_mask = 1; + stream->ps.c_usecs = stream->ps.usecs; + stream->ps.usecs = HS_USECS_ISO(1); + stream->ps.cs_mask = 1; /* c-mask as specified in USB 2.0 11.18.4 3.c */ tmp = (1 << (hs_transfers + 2)) - 1; - stream->raw_mask |= tmp << (8 + 2); + stream->ps.cs_mask |= tmp << (8 + 2); } else - stream->raw_mask = smask_out [hs_transfers - 1]; - bandwidth = stream->usecs + stream->c_usecs; - bandwidth /= interval << 3; + stream->ps.cs_mask = smask_out[hs_transfers - 1]; + + /* period for bandwidth allocation */ + tmp = min_t(unsigned, EHCI_BANDWIDTH_FRAMES, + 1 << (urb->ep->desc.bInterval - 1)); + + /* Allow urb->interval to override */ + stream->ps.bw_period = min_t(unsigned, tmp, urb->interval); + stream->ps.bw_uperiod = stream->ps.bw_period << 3; - /* stream->splits gets created from raw_mask later */ + stream->ps.period = urb->interval; + stream->uperiod = urb->interval << 3; + stream->bandwidth = (stream->ps.usecs + stream->ps.c_usecs) / + stream->ps.bw_period; + + /* stream->splits gets created from cs_mask later */ stream->address = cpu_to_hc32(ehci, addr); } - stream->bandwidth = bandwidth; - stream->udev = dev; + stream->ps.udev = dev; + stream->ps.ep = urb->ep; stream->bEndpointAddress = is_input | epnum; - stream->interval = interval; stream->maxp = maxp; } @@ -1090,9 +1171,7 @@ iso_stream_find (struct ehci_hcd *ehci, struct urb *urb) stream = iso_stream_alloc(GFP_ATOMIC); if (likely (stream != NULL)) { ep->hcpriv = stream; - stream->ep = ep; - iso_stream_init(ehci, stream, urb->dev, urb->pipe, - urb->interval); + iso_stream_init(ehci, stream, urb); } /* if dev->ep [epnum] is a QH, hw is set */ @@ -1137,7 +1216,7 @@ itd_sched_init( dma_addr_t dma = urb->transfer_dma; /* how many uframes are needed for these transfers */ - iso_sched->span = urb->number_of_packets * stream->interval; + iso_sched->span = urb->number_of_packets * stream->uperiod; /* figure out per-uframe itd fields that we'll need later * when we fit new itds into the schedule. @@ -1236,7 +1315,7 @@ itd_urb_transaction ( memset (itd, 0, sizeof *itd); itd->itd_dma = itd_dma; - itd->frame = 9999; /* an invalid value */ + itd->frame = NO_FRAME; list_add (&itd->itd_list, &sched->td_list); } spin_unlock_irqrestore (&ehci->lock, flags); @@ -1249,49 +1328,106 @@ itd_urb_transaction ( /*-------------------------------------------------------------------------*/ +static void reserve_release_iso_bandwidth(struct ehci_hcd *ehci, + struct ehci_iso_stream *stream, int sign) +{ + unsigned uframe; + unsigned i, j; + unsigned s_mask, c_mask, m; + int usecs = stream->ps.usecs; + int c_usecs = stream->ps.c_usecs; + int tt_usecs = stream->ps.tt_usecs; + struct ehci_tt *tt; + + if (stream->ps.phase == NO_FRAME) /* Bandwidth wasn't reserved */ + return; + uframe = stream->ps.bw_phase << 3; + + bandwidth_dbg(ehci, sign, "iso", &stream->ps); + + if (sign < 0) { /* Release bandwidth */ + usecs = -usecs; + c_usecs = -c_usecs; + tt_usecs = -tt_usecs; + } + + if (!stream->splits) { /* High speed */ + for (i = uframe + stream->ps.phase_uf; i < EHCI_BANDWIDTH_SIZE; + i += stream->ps.bw_uperiod) + ehci->bandwidth[i] += usecs; + + } else { /* Full speed */ + s_mask = stream->ps.cs_mask; + c_mask = s_mask >> 8; + + /* NOTE: adjustment needed for frame overflow */ + for (i = uframe; i < EHCI_BANDWIDTH_SIZE; + i += stream->ps.bw_uperiod) { + for ((j = stream->ps.phase_uf, m = 1 << j); j < 8; + (++j, m <<= 1)) { + if (s_mask & m) + ehci->bandwidth[i+j] += usecs; + else if (c_mask & m) + ehci->bandwidth[i+j] += c_usecs; + } + } + + tt = find_tt(stream->ps.udev); + if (sign > 0) + list_add_tail(&stream->ps.ps_list, &tt->ps_list); + else + list_del(&stream->ps.ps_list); + + for (i = uframe >> 3; i < EHCI_BANDWIDTH_FRAMES; + i += stream->ps.bw_period) + tt->bandwidth[i] += tt_usecs; + } +} + static inline int itd_slot_ok ( struct ehci_hcd *ehci, - u32 mod, - u32 uframe, - u8 usecs, - u32 period + struct ehci_iso_stream *stream, + unsigned uframe ) { - uframe %= period; - do { - /* can't commit more than uframe_periodic_max usec */ - if (periodic_usecs (ehci, uframe >> 3, uframe & 0x7) - > (ehci->uframe_periodic_max - usecs)) - return 0; + unsigned usecs; + + /* convert "usecs we need" to "max already claimed" */ + usecs = ehci->uframe_periodic_max - stream->ps.usecs; - /* we know urb->interval is 2^N uframes */ - uframe += period; - } while (uframe < mod); + for (uframe &= stream->ps.bw_uperiod - 1; uframe < EHCI_BANDWIDTH_SIZE; + uframe += stream->ps.bw_uperiod) { + if (ehci->bandwidth[uframe] > usecs) + return 0; + } return 1; } static inline int sitd_slot_ok ( struct ehci_hcd *ehci, - u32 mod, struct ehci_iso_stream *stream, - u32 uframe, + unsigned uframe, struct ehci_iso_sched *sched, - u32 period_uframes + struct ehci_tt *tt ) { - u32 mask, tmp; - u32 frame, uf; + unsigned mask, tmp; + unsigned frame, uf; + + mask = stream->ps.cs_mask << (uframe & 7); - mask = stream->raw_mask << (uframe & 7); + /* for OUT, don't wrap SSPLIT into H-microframe 7 */ + if (((stream->ps.cs_mask & 0xff) << (uframe & 7)) >= (1 << 7)) + return 0; /* for IN, don't wrap CSPLIT into the next frame */ if (mask & ~0xffff) return 0; /* check bandwidth */ - uframe %= period_uframes; + uframe &= stream->ps.bw_uperiod - 1; frame = uframe >> 3; #ifdef CONFIG_USB_EHCI_TT_NEWSCHED @@ -1299,54 +1435,48 @@ sitd_slot_ok ( * tt_available scheduling guarantees 10+% for control/bulk. */ uf = uframe & 7; - if (!tt_available(ehci, period_uframes >> 3, - stream->udev, frame, uf, stream->tt_usecs)) + if (!tt_available(ehci, &stream->ps, tt, frame, uf)) return 0; #else /* tt must be idle for start(s), any gap, and csplit. * assume scheduling slop leaves 10+% for control/bulk. */ - if (!tt_no_collision(ehci, period_uframes >> 3, - stream->udev, frame, mask)) + if (!tt_no_collision(ehci, stream->ps.bw_period, + stream->ps.udev, frame, mask)) return 0; #endif - /* this multi-pass logic is simple, but performance may - * suffer when the schedule data isn't cached. - */ do { - u32 max_used; - - frame = uframe >> 3; - uf = uframe & 7; + unsigned max_used; + unsigned i; /* check starts (OUT uses more than one) */ - max_used = ehci->uframe_periodic_max - stream->usecs; - for (tmp = stream->raw_mask & 0xff; tmp; tmp >>= 1, uf++) { - if (periodic_usecs (ehci, frame, uf) > max_used) + uf = uframe; + max_used = ehci->uframe_periodic_max - stream->ps.usecs; + for (tmp = stream->ps.cs_mask & 0xff; tmp; tmp >>= 1, uf++) { + if (ehci->bandwidth[uf] > max_used) return 0; } /* for IN, check CSPLIT */ - if (stream->c_usecs) { - uf = uframe & 7; - max_used = ehci->uframe_periodic_max - stream->c_usecs; - do { - tmp = 1 << uf; - tmp <<= 8; - if ((stream->raw_mask & tmp) == 0) + if (stream->ps.c_usecs) { + max_used = ehci->uframe_periodic_max - + stream->ps.c_usecs; + uf = uframe & ~7; + tmp = 1 << (2+8); + for (i = (uframe & 7) + 2; i < 8; (++i, tmp <<= 1)) { + if ((stream->ps.cs_mask & tmp) == 0) continue; - if (periodic_usecs (ehci, frame, uf) - > max_used) + if (ehci->bandwidth[uf+i] > max_used) return 0; - } while (++uf < 8); + } } - /* we know urb->interval is 2^N uframes */ - uframe += period_uframes; - } while (uframe < mod); + uframe += stream->ps.bw_uperiod; + } while (uframe < EHCI_BANDWIDTH_SIZE); - stream->splits = cpu_to_hc32(ehci, stream->raw_mask << (uframe & 7)); + stream->ps.cs_mask <<= uframe & 7; + stream->splits = cpu_to_hc32(ehci, stream->ps.cs_mask); return 1; } @@ -1361,8 +1491,6 @@ sitd_slot_ok ( * given EHCI_TUNE_FLS and the slop). Or, write a smarter scheduler! */ -#define SCHEDULING_DELAY 40 /* microframes */ - static int iso_stream_schedule ( struct ehci_hcd *ehci, @@ -1370,134 +1498,184 @@ iso_stream_schedule ( struct ehci_iso_stream *stream ) { - u32 now, base, next, start, period, span; - int status; + u32 now, base, next, start, period, span, now2; + u32 wrap = 0, skip = 0; + int status = 0; unsigned mod = ehci->periodic_size << 3; struct ehci_iso_sched *sched = urb->hcpriv; + bool empty = list_empty(&stream->td_list); + bool new_stream = false; - period = urb->interval; + period = stream->uperiod; span = sched->span; - if (!stream->highspeed) { - period <<= 3; + if (!stream->highspeed) span <<= 3; - } - now = ehci_read_frame_index(ehci) & (mod - 1); + /* Start a new isochronous stream? */ + if (unlikely(empty && !hcd_periodic_completion_in_progress( + ehci_to_hcd(ehci), urb->ep))) { - /* Typical case: reuse current schedule, stream is still active. - * Hopefully there are no gaps from the host falling behind - * (irq delays etc). If there are, the behavior depends on - * whether URB_ISO_ASAP is set. - */ - if (likely (!list_empty (&stream->td_list))) { + /* Schedule the endpoint */ + if (stream->ps.phase == NO_FRAME) { + int done = 0; + struct ehci_tt *tt = find_tt(stream->ps.udev); - /* Take the isochronous scheduling threshold into account */ - if (ehci->i_thresh) - next = now + ehci->i_thresh; /* uframe cache */ - else - next = (now + 2 + 7) & ~0x07; /* full frame cache */ - - /* - * Use ehci->last_iso_frame as the base. There can't be any - * TDs scheduled for earlier than that. - */ - base = ehci->last_iso_frame << 3; - next = (next - base) & (mod - 1); - start = (stream->next_uframe - base) & (mod - 1); - - /* Is the schedule already full? */ - if (unlikely(start < period)) { - ehci_dbg(ehci, "iso sched full %p (%u-%u < %u mod %u)\n", - urb, stream->next_uframe, base, - period, mod); - status = -ENOSPC; - goto fail; - } - - /* Behind the scheduling threshold? */ - if (unlikely(start < next)) { - unsigned now2 = (now - base) & (mod - 1); + if (IS_ERR(tt)) { + status = PTR_ERR(tt); + goto fail; + } + compute_tt_budget(ehci->tt_budget, tt); - /* USB_ISO_ASAP: Round up to the first available slot */ - if (urb->transfer_flags & URB_ISO_ASAP) - start += (next - start + period - 1) & -period; + start = ((-(++ehci->random_frame)) << 3) & (period - 1); - /* - * Not ASAP: Use the next slot in the stream, - * no matter what. + /* find a uframe slot with enough bandwidth. + * Early uframes are more precious because full-speed + * iso IN transfers can't use late uframes, + * and therefore they should be allocated last. */ - else if (start + span - period < now2) { - ehci_dbg(ehci, "iso underrun %p (%u+%u < %u)\n", - urb, start + base, - span - period, now2 + base); + next = start; + start += period; + do { + start--; + /* check schedule: enough space? */ + if (stream->highspeed) { + if (itd_slot_ok(ehci, stream, start)) + done = 1; + } else { + if ((start % 8) >= 6) + continue; + if (sitd_slot_ok(ehci, stream, start, + sched, tt)) + done = 1; + } + } while (start > next && !done); + + /* no room in the schedule */ + if (!done) { + ehci_dbg(ehci, "iso sched full %p", urb); + status = -ENOSPC; + goto fail; } + stream->ps.phase = (start >> 3) & + (stream->ps.period - 1); + stream->ps.bw_phase = stream->ps.phase & + (stream->ps.bw_period - 1); + stream->ps.phase_uf = start & 7; + reserve_release_iso_bandwidth(ehci, stream, 1); + } + + /* New stream is already scheduled; use the upcoming slot */ + else { + start = (stream->ps.phase << 3) + stream->ps.phase_uf; } - start += base; + stream->next_uframe = start; + new_stream = true; } - /* need to schedule; when's the next (u)frame we could start? - * this is bigger than ehci->i_thresh allows; scheduling itself - * isn't free, the delay should handle reasonably slow cpus. it - * can also help high bandwidth if the dma and irq loads don't - * jump until after the queue is primed. + now = ehci_read_frame_index(ehci) & (mod - 1); + + /* Take the isochronous scheduling threshold into account */ + if (ehci->i_thresh) + next = now + ehci->i_thresh; /* uframe cache */ + else + next = (now + 2 + 7) & ~0x07; /* full frame cache */ + + /* + * Use ehci->last_iso_frame as the base. There can't be any + * TDs scheduled for earlier than that. */ - else { - int done = 0; + base = ehci->last_iso_frame << 3; + next = (next - base) & (mod - 1); + start = (stream->next_uframe - base) & (mod - 1); - base = now & ~0x07; - start = base + SCHEDULING_DELAY; + if (unlikely(new_stream)) + goto do_ASAP; - /* find a uframe slot with enough bandwidth. - * Early uframes are more precious because full-speed - * iso IN transfers can't use late uframes, - * and therefore they should be allocated last. - */ - next = start; - start += period; - do { - start--; - /* check schedule: enough space? */ - if (stream->highspeed) { - if (itd_slot_ok(ehci, mod, start, - stream->usecs, period)) - done = 1; - } else { - if ((start % 8) >= 6) - continue; - if (sitd_slot_ok(ehci, mod, stream, - start, sched, period)) - done = 1; - } - } while (start > next && !done); + /* + * Typical case: reuse current schedule, stream may still be active. + * Hopefully there are no gaps from the host falling behind + * (irq delays etc). If there are, the behavior depends on + * whether URB_ISO_ASAP is set. + */ + now2 = (now - base) & (mod - 1); + + /* Is the schedule already full? */ + if (unlikely(!empty && start < period)) { + ehci_dbg(ehci, "iso sched full %p (%u-%u < %u mod %u)\n", + urb, stream->next_uframe, base, period, mod); + status = -ENOSPC; + goto fail; + } + + /* Is the next packet scheduled after the base time? */ + if (likely(!empty || start <= now2 + period)) { + + /* URB_ISO_ASAP: make sure that start >= next */ + if (unlikely(start < next && + (urb->transfer_flags & URB_ISO_ASAP))) + goto do_ASAP; + + /* Otherwise use start, if it's not in the past */ + if (likely(start >= now2)) + goto use_start; - /* no room in the schedule */ - if (!done) { - ehci_dbg(ehci, "iso sched full %p", urb); - status = -ENOSPC; - goto fail; + /* Otherwise we got an underrun while the queue was empty */ + } else { + if (urb->transfer_flags & URB_ISO_ASAP) + goto do_ASAP; + wrap = mod; + now2 += mod; + } + + /* How many uframes and packets do we need to skip? */ + skip = (now2 - start + period - 1) & -period; + if (skip >= span) { /* Entirely in the past? */ + ehci_dbg(ehci, "iso underrun %p (%u+%u < %u) [%u]\n", + urb, start + base, span - period, now2 + base, + base); + + /* Try to keep the last TD intact for scanning later */ + skip = span - period; + + /* Will it come before the current scan position? */ + if (empty) { + skip = span; /* Skip the entire URB */ + status = 1; /* and give it back immediately */ + iso_sched_free(stream, sched); + sched = NULL; } } + urb->error_count = skip / period; + if (sched) + sched->first_packet = urb->error_count; + goto use_start; + do_ASAP: + /* Use the first slot after "next" */ + start = next + ((start - next) & (period - 1)); + + use_start: /* Tried to schedule too far into the future? */ - if (unlikely(start - base + span - period >= mod)) { + if (unlikely(start + span - period >= mod + wrap)) { ehci_dbg(ehci, "request %p would overflow (%u+%u >= %u)\n", - urb, start - base, span - period, mod); + urb, start, span - period, mod + wrap); status = -EFBIG; goto fail; } - stream->next_uframe = start & (mod - 1); + start += base; + stream->next_uframe = (start + skip) & (mod - 1); /* report high speed start in uframes; full speed, in frames */ - urb->start_frame = stream->next_uframe; + urb->start_frame = start & (mod - 1); if (!stream->highspeed) urb->start_frame >>= 3; /* Make sure scan_isoc() sees these */ if (ehci->isoc_count == 0) ehci->last_iso_frame = now >> 3; - return 0; + return status; fail: iso_sched_free(stream, sched); @@ -1610,7 +1788,8 @@ static void itd_link_urb( ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs++; /* fill iTDs uframe by uframe */ - for (packet = 0, itd = NULL; packet < urb->number_of_packets; ) { + for (packet = iso_sched->first_packet, itd = NULL; + packet < urb->number_of_packets;) { if (itd == NULL) { /* ASSERT: we have all necessary itds */ // BUG_ON (list_empty (&iso_sched->td_list)); @@ -1630,7 +1809,7 @@ static void itd_link_urb( itd_patch(ehci, itd, iso_sched, packet, uframe); - next_uframe += stream->interval; + next_uframe += stream->uperiod; next_uframe &= mod - 1; packet++; @@ -1770,9 +1949,9 @@ static int itd_submit (struct ehci_hcd *ehci, struct urb *urb, ehci_dbg (ehci, "can't get iso stream\n"); return -ENOMEM; } - if (unlikely (urb->interval != stream->interval)) { + if (unlikely(urb->interval != stream->uperiod)) { ehci_dbg (ehci, "can't change iso interval %d --> %d\n", - stream->interval, urb->interval); + stream->uperiod, urb->interval); goto done; } @@ -1804,10 +1983,14 @@ static int itd_submit (struct ehci_hcd *ehci, struct urb *urb, if (unlikely(status)) goto done_not_linked; status = iso_stream_schedule(ehci, urb, stream); - if (likely (status == 0)) + if (likely(status == 0)) { itd_link_urb (ehci, urb, ehci->periodic_size << 3, stream); - else + } else if (status > 0) { + status = 0; + ehci_urb_done(ehci, urb, 0); + } else { usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb); + } done_not_linked: spin_unlock_irqrestore (&ehci->lock, flags); done: @@ -1833,7 +2016,7 @@ sitd_sched_init( dma_addr_t dma = urb->transfer_dma; /* how many frames are needed for these transfers */ - iso_sched->span = urb->number_of_packets * stream->interval; + iso_sched->span = urb->number_of_packets * stream->ps.period; /* figure out per-frame sitd fields that we'll need later * when we fit new sitds into the schedule. @@ -1925,7 +2108,7 @@ sitd_urb_transaction ( memset (sitd, 0, sizeof *sitd); sitd->sitd_dma = sitd_dma; - sitd->frame = 9999; /* an invalid value */ + sitd->frame = NO_FRAME; list_add (&sitd->sitd_list, &iso_sched->td_list); } @@ -2008,7 +2191,7 @@ static void sitd_link_urb( ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs++; /* fill sITDs frame by frame */ - for (packet = 0, sitd = NULL; + for (packet = sched->first_packet, sitd = NULL; packet < urb->number_of_packets; packet++) { @@ -2027,7 +2210,7 @@ static void sitd_link_urb( sitd_link(ehci, (next_uframe >> 3) & (ehci->periodic_size - 1), sitd); - next_uframe += stream->interval << 3; + next_uframe += stream->uperiod; } stream->next_uframe = next_uframe & (mod - 1); @@ -2146,9 +2329,9 @@ static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb, ehci_dbg (ehci, "can't get iso stream\n"); return -ENOMEM; } - if (urb->interval != stream->interval) { + if (urb->interval != stream->ps.period) { ehci_dbg (ehci, "can't change iso interval %d --> %d\n", - stream->interval, urb->interval); + stream->ps.period, urb->interval); goto done; } @@ -2178,10 +2361,14 @@ static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb, if (unlikely(status)) goto done_not_linked; status = iso_stream_schedule(ehci, urb, stream); - if (status == 0) + if (likely(status == 0)) { sitd_link_urb (ehci, urb, ehci->periodic_size << 3, stream); - else + } else if (status > 0) { + status = 0; + ehci_urb_done(ehci, urb, 0); + } else { usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb); + } done_not_linked: spin_unlock_irqrestore (&ehci->lock, flags); done: @@ -2259,7 +2446,8 @@ restart: q.itd->hw_next != EHCI_LIST_END(ehci)) *hw_p = q.itd->hw_next; else - *hw_p = ehci->dummy->qh_dma; + *hw_p = cpu_to_hc32(ehci, + ehci->dummy->qh_dma); type = Q_NEXT_TYPE(ehci, q.itd->hw_next); wmb(); modified = itd_complete (ehci, q.itd); @@ -2294,7 +2482,8 @@ restart: q.sitd->hw_next != EHCI_LIST_END(ehci)) *hw_p = q.sitd->hw_next; else - *hw_p = ehci->dummy->qh_dma; + *hw_p = cpu_to_hc32(ehci, + ehci->dummy->qh_dma); type = Q_NEXT_TYPE(ehci, q.sitd->hw_next); wmb(); modified = sitd_complete (ehci, q.sitd); diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c index b2de52d39614..8a734498079b 100644 --- a/drivers/usb/host/ehci-sead3.c +++ b/drivers/usb/host/ehci-sead3.c @@ -55,7 +55,7 @@ const struct hc_driver ehci_sead3_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c index 93e59a13bc1f..dc899eb2b861 100644 --- a/drivers/usb/host/ehci-sh.c +++ b/drivers/usb/host/ehci-sh.c @@ -36,7 +36,7 @@ static const struct hc_driver ehci_sh_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_USB2 | HCD_MEMORY, + .flags = HCD_USB2 | HCD_MEMORY | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci-sysfs.c b/drivers/usb/host/ehci-sysfs.c index 14ced00ba220..f6459dfb6f54 100644 --- a/drivers/usb/host/ehci-sysfs.c +++ b/drivers/usb/host/ehci-sysfs.c @@ -97,8 +97,7 @@ static ssize_t store_uframe_periodic_max(struct device *dev, { struct ehci_hcd *ehci; unsigned uframe_periodic_max; - unsigned frame, uframe; - unsigned short allocated_max; + unsigned uframe; unsigned long flags; ssize_t ret; @@ -122,16 +121,14 @@ static ssize_t store_uframe_periodic_max(struct device *dev, /* * for request to decrease max periodic bandwidth, we have to check - * every microframe in the schedule to see whether the decrease is - * possible. + * to see whether the decrease is possible. */ if (uframe_periodic_max < ehci->uframe_periodic_max) { - allocated_max = 0; + u8 allocated_max = 0; - for (frame = 0; frame < ehci->periodic_size; ++frame) - for (uframe = 0; uframe < 7; ++uframe) - allocated_max = max(allocated_max, - periodic_usecs (ehci, frame, uframe)); + for (uframe = 0; uframe < EHCI_BANDWIDTH_SIZE; ++uframe) + allocated_max = max(allocated_max, + ehci->bandwidth[uframe]); if (allocated_max > uframe_periodic_max) { ehci_info(ehci, diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 78fa76da3324..e6d8e26e48cc 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -388,7 +388,7 @@ static int tegra_ehci_probe(struct platform_device *pdev) err = clk_prepare_enable(tegra->clk); if (err) - goto cleanup_clk_get; + goto cleanup_hcd_create; tegra_periph_reset_assert(tegra->clk); udelay(1); @@ -465,8 +465,6 @@ cleanup_phy: usb_phy_shutdown(hcd->phy); cleanup_clk_en: clk_disable_unprepare(tegra->clk); -cleanup_clk_get: - clk_put(tegra->clk); cleanup_hcd_create: usb_put_hcd(hcd); return err; diff --git a/drivers/usb/host/ehci-tilegx.c b/drivers/usb/host/ehci-tilegx.c index cca4be90a864..67026ffbf9a8 100644 --- a/drivers/usb/host/ehci-tilegx.c +++ b/drivers/usb/host/ehci-tilegx.c @@ -61,7 +61,7 @@ static const struct hc_driver ehci_tilegx_hc_driver = { * Generic hardware linkage. */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * Basic lifecycle operations. diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c index 59e0e24c753f..cdad8438c02b 100644 --- a/drivers/usb/host/ehci-w90x900.c +++ b/drivers/usb/host/ehci-w90x900.c @@ -11,13 +11,28 @@ * */ +#include <linux/dma-mapping.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> #include <linux/platform_device.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> + +#include "ehci.h" /* enable phy0 and phy1 for w90p910 */ #define ENPHY (0x01<<8) #define PHY0_CTR (0xA4) #define PHY1_CTR (0xA8) +#define DRIVER_DESC "EHCI w90x900 driver" + +static const char hcd_name[] = "ehci-w90x900 "; + +static struct hc_driver __read_mostly ehci_w90x900_hc_driver; + static int usb_w90x900_probe(const struct hc_driver *driver, struct platform_device *pdev) { @@ -90,8 +105,8 @@ err1: return retval; } -static -void usb_w90x900_remove(struct usb_hcd *hcd, struct platform_device *pdev) +static void usb_w90x900_remove(struct usb_hcd *hcd, + struct platform_device *pdev) { usb_remove_hcd(hcd); iounmap(hcd->regs); @@ -99,54 +114,6 @@ void usb_w90x900_remove(struct usb_hcd *hcd, struct platform_device *pdev) usb_put_hcd(hcd); } -static const struct hc_driver ehci_w90x900_hc_driver = { - .description = hcd_name, - .product_desc = "Nuvoton w90x900 EHCI Host Controller", - .hcd_priv_size = sizeof(struct ehci_hcd), - - /* - * generic hardware linkage - */ - .irq = ehci_irq, - .flags = HCD_USB2|HCD_MEMORY, - - /* - * basic lifecycle operations - */ - .reset = ehci_setup, - .start = ehci_run, - - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, - - /* - * scheduling support - */ - .get_frame_number = ehci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, -#endif - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, -}; - static int ehci_w90x900_probe(struct platform_device *pdev) { if (usb_disabled()) @@ -173,7 +140,25 @@ static struct platform_driver ehci_hcd_w90x900_driver = { }, }; +static int __init ehci_w90X900_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ehci_init_driver(&ehci_w90x900_hc_driver, NULL); + return platform_driver_register(&ehci_hcd_w90x900_driver); +} +module_init(ehci_w90X900_init); + +static void __exit ehci_w90X900_cleanup(void) +{ + platform_driver_unregister(&ehci_hcd_w90x900_driver); +} +module_exit(ehci_w90X900_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>"); -MODULE_DESCRIPTION("w90p910 usb ehci driver!"); -MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:w90p910-ehci"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c index eba962e6ebfb..95979f9f4381 100644 --- a/drivers/usb/host/ehci-xilinx-of.c +++ b/drivers/usb/host/ehci-xilinx-of.c @@ -79,7 +79,7 @@ static const struct hc_driver ehci_xilinx_of_hc_driver = { * generic hardware linkage */ .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, + .flags = HCD_MEMORY | HCD_USB2 | HCD_BH, /* * basic lifecycle operations diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 291db7d09f22..e8f41c5e771b 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -54,6 +54,28 @@ struct ehci_stats { unsigned long unlink; }; +/* + * Scheduling and budgeting information for periodic transfers, for both + * high-speed devices and full/low-speed devices lying behind a TT. + */ +struct ehci_per_sched { + struct usb_device *udev; /* access to the TT */ + struct usb_host_endpoint *ep; + struct list_head ps_list; /* node on ehci_tt's ps_list */ + u16 tt_usecs; /* time on the FS/LS bus */ + u16 cs_mask; /* C-mask and S-mask bytes */ + u16 period; /* actual period in frames */ + u16 phase; /* actual phase, frame part */ + u8 bw_phase; /* same, for bandwidth + reservation */ + u8 phase_uf; /* uframe part of the phase */ + u8 usecs, c_usecs; /* times on the HS bus */ + u8 bw_uperiod; /* period in microframes, for + bandwidth reservation */ + u8 bw_period; /* same, in frames */ +}; +#define NO_FRAME 29999 /* frame not assigned yet */ + /* ehci_hcd->lock guards shared data against other CPUs: * ehci_hcd: async, unlink, periodic (and shadow), ... * usb_host_endpoint: hcpriv @@ -230,6 +252,15 @@ struct ehci_hcd { /* one per controller */ struct dentry *debug_dir; #endif + /* bandwidth usage */ +#define EHCI_BANDWIDTH_SIZE 64 +#define EHCI_BANDWIDTH_FRAMES (EHCI_BANDWIDTH_SIZE >> 3) + u8 bandwidth[EHCI_BANDWIDTH_SIZE]; + /* us allocated per uframe */ + u8 tt_budget[EHCI_BANDWIDTH_SIZE]; + /* us budgeted per uframe */ + struct list_head tt_list; + /* platform-specific data -- must come last */ unsigned long priv[0] __aligned(sizeof(s64)); }; @@ -385,6 +416,7 @@ struct ehci_qh { struct list_head intr_node; /* list of intr QHs */ struct ehci_qtd *dummy; struct list_head unlink_node; + struct ehci_per_sched ps; /* scheduling info */ unsigned unlink_cycle; @@ -398,16 +430,8 @@ struct ehci_qh { u8 xacterrs; /* XactErr retry counter */ #define QH_XACTERR_MAX 32 /* XactErr retry limit */ - /* periodic schedule info */ - u8 usecs; /* intr bandwidth */ u8 gap_uf; /* uframes split/csplit gap */ - u8 c_usecs; /* ... split completion bw */ - u16 tt_usecs; /* tt downstream bandwidth */ - unsigned short period; /* polling interval */ - unsigned short start; /* where polling starts */ -#define NO_FRAME ((unsigned short)~0) /* pick new start */ - struct usb_device *dev; /* access to TT */ unsigned is_out:1; /* bulk or intr OUT */ unsigned clearing_tt:1; /* Clear-TT-Buf in progress */ unsigned dequeue_during_giveback:1; @@ -434,6 +458,7 @@ struct ehci_iso_packet { struct ehci_iso_sched { struct list_head td_list; unsigned span; + unsigned first_packet; struct ehci_iso_packet packet [0]; }; @@ -449,22 +474,17 @@ struct ehci_iso_stream { u8 highspeed; struct list_head td_list; /* queued itds/sitds */ struct list_head free_list; /* list of unused itds/sitds */ - struct usb_device *udev; - struct usb_host_endpoint *ep; /* output of (re)scheduling */ - int next_uframe; + struct ehci_per_sched ps; /* scheduling info */ + unsigned next_uframe; __hc32 splits; /* the rest is derived from the endpoint descriptor, - * trusting urb->interval == f(epdesc->bInterval) and * including the extra info for hw_bufp[0..2] */ - u8 usecs, c_usecs; - u16 interval; - u16 tt_usecs; + u16 uperiod; /* period in uframes */ u16 maxp; - u16 raw_mask; unsigned bandwidth; /* This is used to initialize iTD's hw_bufp fields */ @@ -579,6 +599,35 @@ struct ehci_fstn { /*-------------------------------------------------------------------------*/ +/* + * USB-2.0 Specification Sections 11.14 and 11.18 + * Scheduling and budgeting split transactions using TTs + * + * A hub can have a single TT for all its ports, or multiple TTs (one for each + * port). The bandwidth and budgeting information for the full/low-speed bus + * below each TT is self-contained and independent of the other TTs or the + * high-speed bus. + * + * "Bandwidth" refers to the number of microseconds on the FS/LS bus allocated + * to an interrupt or isochronous endpoint for each frame. "Budget" refers to + * the best-case estimate of the number of full-speed bytes allocated to an + * endpoint for each microframe within an allocated frame. + * + * Removal of an endpoint invalidates a TT's budget. Instead of trying to + * keep an up-to-date record, we recompute the budget when it is needed. + */ + +struct ehci_tt { + u16 bandwidth[EHCI_BANDWIDTH_FRAMES]; + + struct list_head tt_list; /* List of all ehci_tt's */ + struct list_head ps_list; /* Items using this TT */ + struct usb_tt *usb_tt; + int tt_port; /* TT port number */ +}; + +/*-------------------------------------------------------------------------*/ + /* Prepare the PORTSC wakeup flags during controller suspend/resume */ #define ehci_prepare_ports_for_controller_suspend(ehci, do_wakeup) \ diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c index fce13bcc4a3e..55486bd23cf1 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -412,7 +412,7 @@ struct debug_buffer { tmp = 'h'; break; \ default: \ tmp = '?'; break; \ - }; tmp; }) + } tmp; }) static inline char token_mark(struct fotg210_hcd *fotg210, __hc32 token) { diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c index 299253c826c7..e1c6d850a7e1 100644 --- a/drivers/usb/host/fusbh200-hcd.c +++ b/drivers/usb/host/fusbh200-hcd.c @@ -402,7 +402,7 @@ struct debug_buffer { case QH_LOW_SPEED: tmp = 'l'; break; \ case QH_HIGH_SPEED: tmp = 'h'; break; \ default: tmp = '?'; break; \ - }; tmp; }) + } tmp; }) static inline char token_mark(struct fusbh200_hcd *fusbh200, __hc32 token) { diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c index 5b86ffb88f1c..ada0a52797b1 100644 --- a/drivers/usb/host/hwa-hc.c +++ b/drivers/usb/host/hwa-hc.c @@ -199,10 +199,14 @@ static int hwahc_op_get_frame_number(struct usb_hcd *usb_hcd) { struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd); struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc); + struct wahc *wa = &hwahc->wa; - dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__, - usb_hcd, hwahc); - return -ENOSYS; + /* + * We cannot query the HWA for the WUSB time since that requires sending + * a synchronous URB and this function can be called in_interrupt. + * Instead, query the USB frame number for our parent and use that. + */ + return usb_get_current_frame_number(wa->usb_dev); } static int hwahc_op_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb, @@ -566,14 +570,10 @@ found: goto error; } wa->wa_descr = wa_descr = (struct usb_wa_descriptor *) hdr; - /* Make LE fields CPU order */ - wa_descr->bcdWAVersion = le16_to_cpu(wa_descr->bcdWAVersion); - wa_descr->wNumRPipes = le16_to_cpu(wa_descr->wNumRPipes); - wa_descr->wRPipeMaxBlock = le16_to_cpu(wa_descr->wRPipeMaxBlock); - if (wa_descr->bcdWAVersion > 0x0100) + if (le16_to_cpu(wa_descr->bcdWAVersion) > 0x0100) dev_warn(dev, "Wire Adapter v%d.%d newer than groked v1.0\n", - wa_descr->bcdWAVersion & 0xff00 >> 8, - wa_descr->bcdWAVersion & 0x00ff); + le16_to_cpu(wa_descr->bcdWAVersion) & 0xff00 >> 8, + le16_to_cpu(wa_descr->bcdWAVersion) & 0x00ff); result = 0; error: return result; @@ -679,7 +679,8 @@ static void hwahc_security_release(struct hwahc *hwahc) /* nothing to do here so far... */ } -static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface) +static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface, + kernel_ulong_t quirks) { int result; struct device *dev = &iface->dev; @@ -724,7 +725,7 @@ static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface) dev_err(dev, "Can't create WUSB HC structures: %d\n", result); goto error_wusbhc_create; } - result = wa_create(&hwahc->wa, iface); + result = wa_create(&hwahc->wa, iface, quirks); if (result < 0) goto error_wa_create; return 0; @@ -780,7 +781,7 @@ static int hwahc_probe(struct usb_interface *usb_iface, wusbhc = usb_hcd_to_wusbhc(usb_hcd); hwahc = container_of(wusbhc, struct hwahc, wusbhc); hwahc_init(hwahc); - result = hwahc_create(hwahc, usb_iface); + result = hwahc_create(hwahc, usb_iface, id->driver_info); if (result < 0) { dev_err(dev, "Cannot initialize internals: %d\n", result); goto error_hwahc_create; @@ -824,6 +825,12 @@ static void hwahc_disconnect(struct usb_interface *usb_iface) } static struct usb_device_id hwahc_id_table[] = { + /* Alereon 5310 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x13dc, 0x5310, 0xe0, 0x02, 0x01), + .driver_info = WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC }, + /* Alereon 5611 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x13dc, 0x5611, 0xe0, 0x02, 0x01), + .driver_info = WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC }, /* FIXME: use class labels for this */ { USB_INTERFACE_INFO(0xe0, 0x02, 0x01), }, {}, diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c index 6f29abad6815..935a2dd367a8 100644 --- a/drivers/usb/host/isp1362-hcd.c +++ b/drivers/usb/host/isp1362-hcd.c @@ -2108,7 +2108,7 @@ static int isp1362_show(struct seq_file *s, void *unused) default: s = "?"; break; - }; + } s;}), ep->maxpacket) ; list_for_each_entry(urb, &ep->hep->urb_list, urb_list) { seq_printf(s, " urb%p, %d/%d\n", urb, diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index caa3764a3407..476b5a5baf25 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -13,19 +13,24 @@ */ #include <linux/clk.h> -#include <linux/platform_device.h> +#include <linux/dma-mapping.h> #include <linux/of_platform.h> #include <linux/of_gpio.h> +#include <linux/platform_device.h> #include <linux/platform_data/atmel.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> #include <mach/hardware.h> #include <asm/gpio.h> #include <mach/cpu.h> -#ifndef CONFIG_ARCH_AT91 -#error "CONFIG_ARCH_AT91 must be defined." -#endif + +#include "ohci.h" #define valid_port(index) ((index) >= 0 && (index) < AT91_MAX_USBH_PORTS) #define at91_for_each_port(index) \ @@ -33,7 +38,17 @@ /* interface, function and usb clocks; sometimes also an AHB clock */ static struct clk *iclk, *fclk, *uclk, *hclk; +/* interface and function clocks; sometimes also an AHB clock */ + +#define DRIVER_DESC "OHCI Atmel driver" + +static const char hcd_name[] = "ohci-atmel"; + +static struct hc_driver __read_mostly ohci_at91_hc_driver; static int clocked; +static int (*orig_ohci_hub_control)(struct usb_hcd *hcd, u16 typeReq, + u16 wValue, u16 wIndex, char *buf, u16 wLength); +static int (*orig_ohci_hub_status_data)(struct usb_hcd *hcd, char *buf); extern int usb_disabled(void); @@ -117,6 +132,8 @@ static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); static int usb_hcd_at91_probe(const struct hc_driver *driver, struct platform_device *pdev) { + struct at91_usbh_data *board; + struct ohci_hcd *ohci; int retval; struct usb_hcd *hcd = NULL; @@ -177,8 +194,10 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, } } + board = hcd->self.controller->platform_data; + ohci = hcd_to_ohci(hcd); + ohci->num_ports = board->ports; at91_start_hc(pdev); - ohci_hcd_init(hcd_to_ohci(hcd)); retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED); if (retval == 0) @@ -238,36 +257,6 @@ static void usb_hcd_at91_remove(struct usb_hcd *hcd, } /*-------------------------------------------------------------------------*/ - -static int -ohci_at91_reset (struct usb_hcd *hcd) -{ - struct at91_usbh_data *board = dev_get_platdata(hcd->self.controller); - struct ohci_hcd *ohci = hcd_to_ohci (hcd); - int ret; - - if ((ret = ohci_init(ohci)) < 0) - return ret; - - ohci->num_ports = board->ports; - return 0; -} - -static int -ohci_at91_start (struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci (hcd); - int ret; - - if ((ret = ohci_run(ohci)) < 0) { - dev_err(hcd->self.controller, "can't start %s\n", - hcd->self.bus_name); - ohci_stop(hcd); - return ret; - } - return 0; -} - static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int enable) { if (!valid_port(port)) @@ -297,8 +286,8 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port) */ static int ohci_at91_hub_status_data(struct usb_hcd *hcd, char *buf) { - struct at91_usbh_data *pdata = dev_get_platdata(hcd->self.controller); - int length = ohci_hub_status_data(hcd, buf); + struct at91_usbh_data *pdata = hcd->self.controller->platform_data; + int length = orig_ohci_hub_status_data(hcd, buf); int port; at91_for_each_port(port) { @@ -376,7 +365,8 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, break; } - ret = ohci_hub_control(hcd, typeReq, wValue, wIndex + 1, buf, wLength); + ret = orig_ohci_hub_control(hcd, typeReq, wValue, wIndex + 1, + buf, wLength); if (ret) goto out; @@ -430,51 +420,6 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, /*-------------------------------------------------------------------------*/ -static const struct hc_driver ohci_at91_hc_driver = { - .description = hcd_name, - .product_desc = "AT91 OHCI", - .hcd_priv_size = sizeof(struct ohci_hcd), - - /* - * generic hardware linkage - */ - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - - /* - * basic lifecycle operations - */ - .reset = ohci_at91_reset, - .start = ohci_at91_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - /* - * scheduling support - */ - .get_frame_number = ohci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ohci_at91_hub_status_data, - .hub_control = ohci_at91_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -/*-------------------------------------------------------------------------*/ - static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data) { struct platform_device *pdev = data; @@ -703,7 +648,11 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg) * REVISIT: some boards will be able to turn VBUS off... */ if (at91_suspend_entering_slow_clock()) { - ohci_usb_reset (ohci); + ohci->hc_control = ohci_readl(ohci, &ohci->regs->control); + ohci->hc_control &= OHCI_CTRL_RWC; + ohci_writel(ohci, ohci->hc_control, &ohci->regs->control); + ohci->rh_state = OHCI_RH_HALTED; + /* flush the writes */ (void) ohci_readl (ohci, &ohci->regs->control); at91_stop_clock(); @@ -730,8 +679,6 @@ static int ohci_hcd_at91_drv_resume(struct platform_device *pdev) #define ohci_hcd_at91_drv_resume NULL #endif -MODULE_ALIAS("platform:at91_ohci"); - static struct platform_driver ohci_hcd_at91_driver = { .probe = ohci_hcd_at91_drv_probe, .remove = ohci_hcd_at91_drv_remove, @@ -744,3 +691,40 @@ static struct platform_driver ohci_hcd_at91_driver = { .of_match_table = of_match_ptr(at91_ohci_dt_ids), }, }; + +static int __init ohci_at91_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + ohci_init_driver(&ohci_at91_hc_driver, NULL); + + /* + * The Atmel HW has some unusual quirks, which require Atmel-specific + * workarounds. We override certain hc_driver functions here to + * achieve that. We explicitly do not enhance ohci_driver_overrides to + * allow this more easily, since this is an unusual case, and we don't + * want to encourage others to override these functions by making it + * too easy. + */ + + orig_ohci_hub_control = ohci_at91_hc_driver.hub_control; + orig_ohci_hub_status_data = ohci_at91_hc_driver.hub_status_data; + + ohci_at91_hc_driver.hub_status_data = ohci_at91_hub_status_data; + ohci_at91_hc_driver.hub_control = ohci_at91_hub_control; + + return platform_driver_register(&ohci_hcd_at91_driver); +} +module_init(ohci_at91_init); + +static void __exit ohci_at91_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_at91_driver); +} +module_exit(ohci_at91_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:at91_ohci"); diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index 31b81f9eacdc..3fca52ec02ac 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c @@ -17,7 +17,7 @@ case PIPE_BULK: temp = "bulk"; break; \ case PIPE_INTERRUPT: temp = "intr"; break; \ default: temp = "isoc"; break; \ - }; temp;}) + } temp;}) #define pipestring(pipe) edstring(usb_pipetype(pipe)) /* debug| print the main components of an URB diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c deleted file mode 100644 index 84a20d5223b9..000000000000 --- a/drivers/usb/host/ohci-ep93xx.c +++ /dev/null @@ -1,184 +0,0 @@ -/* - * OHCI HCD (Host Controller Driver) for USB. - * - * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> - * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> - * (C) Copyright 2002 Hewlett-Packard Company - * - * Bus Glue for ep93xx. - * - * Written by Christopher Hoover <ch@hpl.hp.com> - * Based on fragments of previous driver by Russell King et al. - * - * Modified for LH7A404 from ohci-sa1111.c - * by Durgesh Pattamatta <pattamattad@sharpsec.com> - * - * Modified for pxa27x from ohci-lh7a404.c - * by Nick Bane <nick@cecomputing.co.uk> 26-8-2004 - * - * Modified for ep93xx from ohci-pxa27x.c - * by Lennert Buytenhek <buytenh@wantstofly.org> 28-2-2006 - * Based on an earlier driver by Ray Lehtiniemi - * - * This file is licenced under the GPL. - */ - -#include <linux/clk.h> -#include <linux/device.h> -#include <linux/signal.h> -#include <linux/platform_device.h> - -static struct clk *usb_host_clock; - -static int ohci_ep93xx_start(struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - int ret; - - if ((ret = ohci_init(ohci)) < 0) - return ret; - - if ((ret = ohci_run(ohci)) < 0) { - dev_err(hcd->self.controller, "can't start %s\n", - hcd->self.bus_name); - ohci_stop(hcd); - return ret; - } - - return 0; -} - -static struct hc_driver ohci_ep93xx_hc_driver = { - .description = hcd_name, - .product_desc = "EP93xx OHCI", - .hcd_priv_size = sizeof(struct ohci_hcd), - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - .start = ohci_ep93xx_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - .get_frame_number = ohci_get_frame, - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -static int ohci_hcd_ep93xx_drv_probe(struct platform_device *pdev) -{ - struct usb_hcd *hcd; - struct resource *res; - int irq; - int ret; - - if (usb_disabled()) - return -ENODEV; - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return irq; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENXIO; - - hcd = usb_create_hcd(&ohci_ep93xx_hc_driver, &pdev->dev, "ep93xx"); - if (!hcd) - return -ENOMEM; - - hcd->rsrc_start = res->start; - hcd->rsrc_len = resource_size(res); - - hcd->regs = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(hcd->regs)) { - ret = PTR_ERR(hcd->regs); - goto err_put_hcd; - } - - usb_host_clock = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(usb_host_clock)) { - ret = PTR_ERR(usb_host_clock); - goto err_put_hcd; - } - - clk_enable(usb_host_clock); - - ohci_hcd_init(hcd_to_ohci(hcd)); - - ret = usb_add_hcd(hcd, irq, 0); - if (ret) - goto err_clk_disable; - - return 0; - -err_clk_disable: - clk_disable(usb_host_clock); -err_put_hcd: - usb_put_hcd(hcd); - - return ret; -} - -static int ohci_hcd_ep93xx_drv_remove(struct platform_device *pdev) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); - - usb_remove_hcd(hcd); - clk_disable(usb_host_clock); - usb_put_hcd(hcd); - - return 0; -} - -#ifdef CONFIG_PM -static int ohci_hcd_ep93xx_drv_suspend(struct platform_device *pdev, pm_message_t state) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - - if (time_before(jiffies, ohci->next_statechange)) - msleep(5); - ohci->next_statechange = jiffies; - - clk_disable(usb_host_clock); - return 0; -} - -static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - - if (time_before(jiffies, ohci->next_statechange)) - msleep(5); - ohci->next_statechange = jiffies; - - clk_enable(usb_host_clock); - - ohci_resume(hcd, false); - return 0; -} -#endif - - -static struct platform_driver ohci_hcd_ep93xx_driver = { - .probe = ohci_hcd_ep93xx_drv_probe, - .remove = ohci_hcd_ep93xx_drv_remove, - .shutdown = usb_hcd_platform_shutdown, -#ifdef CONFIG_PM - .suspend = ohci_hcd_ep93xx_drv_suspend, - .resume = ohci_hcd_ep93xx_drv_resume, -#endif - .driver = { - .name = "ep93xx-ohci", - .owner = THIS_MODULE, - }, -}; - -MODULE_ALIAS("platform:ep93xx-ohci"); diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index dc6ee9adacf5..a87baedc0aa7 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -12,98 +12,55 @@ */ #include <linux/clk.h> +#include <linux/dma-mapping.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> -#include <linux/platform_data/usb-ohci-exynos.h> #include <linux/usb/phy.h> #include <linux/usb/samsung_usb_phy.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> +#include <linux/usb/otg.h> + +#include "ohci.h" + +#define DRIVER_DESC "OHCI EXYNOS driver" + +static const char hcd_name[] = "ohci-exynos"; +static struct hc_driver __read_mostly exynos_ohci_hc_driver; + +#define to_exynos_ohci(hcd) (struct exynos_ohci_hcd *)(hcd_to_ohci(hcd)->priv) struct exynos_ohci_hcd { - struct device *dev; - struct usb_hcd *hcd; struct clk *clk; struct usb_phy *phy; struct usb_otg *otg; - struct exynos4_ohci_platdata *pdata; }; -static void exynos_ohci_phy_enable(struct exynos_ohci_hcd *exynos_ohci) +static void exynos_ohci_phy_enable(struct platform_device *pdev) { - struct platform_device *pdev = to_platform_device(exynos_ohci->dev); + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd); if (exynos_ohci->phy) usb_phy_init(exynos_ohci->phy); - else if (exynos_ohci->pdata && exynos_ohci->pdata->phy_init) - exynos_ohci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST); } -static void exynos_ohci_phy_disable(struct exynos_ohci_hcd *exynos_ohci) +static void exynos_ohci_phy_disable(struct platform_device *pdev) { - struct platform_device *pdev = to_platform_device(exynos_ohci->dev); + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd); if (exynos_ohci->phy) usb_phy_shutdown(exynos_ohci->phy); - else if (exynos_ohci->pdata && exynos_ohci->pdata->phy_exit) - exynos_ohci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST); -} - -static int ohci_exynos_reset(struct usb_hcd *hcd) -{ - return ohci_init(hcd_to_ohci(hcd)); } -static int ohci_exynos_start(struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - int ret; - - ohci_dbg(ohci, "ohci_exynos_start, ohci:%p", ohci); - - ret = ohci_run(ohci); - if (ret < 0) { - dev_err(hcd->self.controller, "can't start %s\n", - hcd->self.bus_name); - ohci_stop(hcd); - return ret; - } - - return 0; -} - -static const struct hc_driver exynos_ohci_hc_driver = { - .description = hcd_name, - .product_desc = "EXYNOS OHCI Host Controller", - .hcd_priv_size = sizeof(struct ohci_hcd), - - .irq = ohci_irq, - .flags = HCD_MEMORY|HCD_USB11, - - .reset = ohci_exynos_reset, - .start = ohci_exynos_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - - .get_frame_number = ohci_get_frame, - - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - static int exynos_ohci_probe(struct platform_device *pdev) { - struct exynos4_ohci_platdata *pdata = dev_get_platdata(&pdev->dev); struct exynos_ohci_hcd *exynos_ohci; struct usb_hcd *hcd; - struct ohci_hcd *ohci; struct resource *res; struct usb_phy *phy; int irq; @@ -119,10 +76,14 @@ static int exynos_ohci_probe(struct platform_device *pdev) if (!pdev->dev.coherent_dma_mask) pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); - exynos_ohci = devm_kzalloc(&pdev->dev, sizeof(struct exynos_ohci_hcd), - GFP_KERNEL); - if (!exynos_ohci) + hcd = usb_create_hcd(&exynos_ohci_hc_driver, + &pdev->dev, dev_name(&pdev->dev)); + if (!hcd) { + dev_err(&pdev->dev, "Unable to create HCD\n"); return -ENOMEM; + } + + exynos_ohci = to_exynos_ohci(hcd); if (of_device_is_compatible(pdev->dev.of_node, "samsung,exynos5440-ohci")) @@ -130,30 +91,15 @@ static int exynos_ohci_probe(struct platform_device *pdev) phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); if (IS_ERR(phy)) { - /* Fallback to pdata */ - if (!pdata) { - dev_warn(&pdev->dev, "no platform data or transceiver defined\n"); - return -EPROBE_DEFER; - } else { - exynos_ohci->pdata = pdata; - } + usb_put_hcd(hcd); + dev_warn(&pdev->dev, "no platform data or transceiver defined\n"); + return -EPROBE_DEFER; } else { exynos_ohci->phy = phy; exynos_ohci->otg = phy->otg; } skip_phy: - - exynos_ohci->dev = &pdev->dev; - - hcd = usb_create_hcd(&exynos_ohci_hc_driver, &pdev->dev, - dev_name(&pdev->dev)); - if (!hcd) { - dev_err(&pdev->dev, "Unable to create HCD\n"); - return -ENOMEM; - } - - exynos_ohci->hcd = hcd; exynos_ohci->clk = devm_clk_get(&pdev->dev, "usbhost"); if (IS_ERR(exynos_ohci->clk)) { @@ -190,26 +136,21 @@ skip_phy: } if (exynos_ohci->otg) - exynos_ohci->otg->set_host(exynos_ohci->otg, - &exynos_ohci->hcd->self); + exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self); - exynos_ohci_phy_enable(exynos_ohci); + platform_set_drvdata(pdev, hcd); - ohci = hcd_to_ohci(hcd); - ohci_hcd_init(ohci); + exynos_ohci_phy_enable(pdev); err = usb_add_hcd(hcd, irq, IRQF_SHARED); if (err) { dev_err(&pdev->dev, "Failed to add USB HCD\n"); goto fail_add_hcd; } - - platform_set_drvdata(pdev, exynos_ohci); - return 0; fail_add_hcd: - exynos_ohci_phy_disable(exynos_ohci); + exynos_ohci_phy_disable(pdev); fail_io: clk_disable_unprepare(exynos_ohci->clk); fail_clk: @@ -219,16 +160,15 @@ fail_clk: static int exynos_ohci_remove(struct platform_device *pdev) { - struct exynos_ohci_hcd *exynos_ohci = platform_get_drvdata(pdev); - struct usb_hcd *hcd = exynos_ohci->hcd; + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd); usb_remove_hcd(hcd); if (exynos_ohci->otg) - exynos_ohci->otg->set_host(exynos_ohci->otg, - &exynos_ohci->hcd->self); + exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self); - exynos_ohci_phy_disable(exynos_ohci); + exynos_ohci_phy_disable(pdev); clk_disable_unprepare(exynos_ohci->clk); @@ -239,8 +179,7 @@ static int exynos_ohci_remove(struct platform_device *pdev) static void exynos_ohci_shutdown(struct platform_device *pdev) { - struct exynos_ohci_hcd *exynos_ohci = platform_get_drvdata(pdev); - struct usb_hcd *hcd = exynos_ohci->hcd; + struct usb_hcd *hcd = platform_get_drvdata(pdev); if (hcd->driver->shutdown) hcd->driver->shutdown(hcd); @@ -249,9 +188,10 @@ static void exynos_ohci_shutdown(struct platform_device *pdev) #ifdef CONFIG_PM static int exynos_ohci_suspend(struct device *dev) { - struct exynos_ohci_hcd *exynos_ohci = dev_get_drvdata(dev); - struct usb_hcd *hcd = exynos_ohci->hcd; + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd); struct ohci_hcd *ohci = hcd_to_ohci(hcd); + struct platform_device *pdev = to_platform_device(dev); unsigned long flags; int rc = 0; @@ -271,10 +211,9 @@ static int exynos_ohci_suspend(struct device *dev) clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); if (exynos_ohci->otg) - exynos_ohci->otg->set_host(exynos_ohci->otg, - &exynos_ohci->hcd->self); + exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self); - exynos_ohci_phy_disable(exynos_ohci); + exynos_ohci_phy_disable(pdev); clk_disable_unprepare(exynos_ohci->clk); @@ -286,16 +225,16 @@ fail: static int exynos_ohci_resume(struct device *dev) { - struct exynos_ohci_hcd *exynos_ohci = dev_get_drvdata(dev); - struct usb_hcd *hcd = exynos_ohci->hcd; + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd); + struct platform_device *pdev = to_platform_device(dev); clk_prepare_enable(exynos_ohci->clk); if (exynos_ohci->otg) - exynos_ohci->otg->set_host(exynos_ohci->otg, - &exynos_ohci->hcd->self); + exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self); - exynos_ohci_phy_enable(exynos_ohci); + exynos_ohci_phy_enable(pdev); ohci_resume(hcd, false); @@ -306,6 +245,10 @@ static int exynos_ohci_resume(struct device *dev) #define exynos_ohci_resume NULL #endif +static const struct ohci_driver_overrides exynos_overrides __initconst = { + .extra_priv_size = sizeof(struct exynos_ohci_hcd), +}; + static const struct dev_pm_ops exynos_ohci_pm_ops = { .suspend = exynos_ohci_suspend, .resume = exynos_ohci_resume, @@ -331,6 +274,23 @@ static struct platform_driver exynos_ohci_driver = { .of_match_table = of_match_ptr(exynos_ohci_match), } }; +static int __init ohci_exynos_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + ohci_init_driver(&exynos_ohci_hc_driver, &exynos_overrides); + return platform_driver_register(&exynos_ohci_driver); +} +module_init(ohci_exynos_init); + +static void __exit ohci_exynos_cleanup(void) +{ + platform_driver_unregister(&exynos_ohci_driver); +} +module_exit(ohci_exynos_cleanup); MODULE_ALIAS("platform:exynos-ohci"); MODULE_AUTHOR("Jingoo Han <jg1.han@samsung.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index 604cad1bcf9c..8ada13f8dde2 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -1161,10 +1161,12 @@ void ohci_init_driver(struct hc_driver *drv, /* Copy the generic table to drv and then apply the overrides */ *drv = ohci_hc_driver; - drv->product_desc = over->product_desc; - drv->hcd_priv_size += over->extra_priv_size; - if (over->reset) - drv->reset = over->reset; + if (over) { + drv->product_desc = over->product_desc; + drv->hcd_priv_size += over->extra_priv_size; + if (over->reset) + drv->reset = over->reset; + } } EXPORT_SYMBOL_GPL(ohci_init_driver); @@ -1179,46 +1181,6 @@ MODULE_LICENSE ("GPL"); #define SA1111_DRIVER ohci_hcd_sa1111_driver #endif -#if defined(CONFIG_ARCH_S3C24XX) || defined(CONFIG_ARCH_S3C64XX) -#include "ohci-s3c2410.c" -#define S3C2410_PLATFORM_DRIVER ohci_hcd_s3c2410_driver -#endif - -#ifdef CONFIG_USB_OHCI_EXYNOS -#include "ohci-exynos.c" -#define EXYNOS_PLATFORM_DRIVER exynos_ohci_driver -#endif - -#ifdef CONFIG_USB_OHCI_HCD_OMAP1 -#include "ohci-omap.c" -#define OMAP1_PLATFORM_DRIVER ohci_hcd_omap_driver -#endif - -#ifdef CONFIG_USB_OHCI_HCD_OMAP3 -#include "ohci-omap3.c" -#define OMAP3_PLATFORM_DRIVER ohci_hcd_omap3_driver -#endif - -#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx) -#include "ohci-pxa27x.c" -#define PLATFORM_DRIVER ohci_hcd_pxa27x_driver -#endif - -#ifdef CONFIG_ARCH_EP93XX -#include "ohci-ep93xx.c" -#define EP93XX_PLATFORM_DRIVER ohci_hcd_ep93xx_driver -#endif - -#ifdef CONFIG_ARCH_AT91 -#include "ohci-at91.c" -#define AT91_PLATFORM_DRIVER ohci_hcd_at91_driver -#endif - -#ifdef CONFIG_ARCH_LPC32XX -#include "ohci-nxp.c" -#define NXP_PLATFORM_DRIVER usb_hcd_nxp_driver -#endif - #ifdef CONFIG_ARCH_DAVINCI_DA8XX #include "ohci-da8xx.c" #define DAVINCI_PLATFORM_DRIVER ohci_hcd_da8xx_driver @@ -1229,11 +1191,6 @@ MODULE_LICENSE ("GPL"); #define OF_PLATFORM_DRIVER ohci_hcd_ppc_of_driver #endif -#ifdef CONFIG_PLAT_SPEAR -#include "ohci-spear.c" -#define SPEAR_PLATFORM_DRIVER spear_ohci_hcd_driver -#endif - #ifdef CONFIG_PPC_PS3 #include "ohci-ps3.c" #define PS3_SYSTEM_BUS_DRIVER ps3_ohci_driver @@ -1296,18 +1253,6 @@ static int __init ohci_hcd_mod_init(void) goto error_platform; #endif -#ifdef OMAP1_PLATFORM_DRIVER - retval = platform_driver_register(&OMAP1_PLATFORM_DRIVER); - if (retval < 0) - goto error_omap1_platform; -#endif - -#ifdef OMAP3_PLATFORM_DRIVER - retval = platform_driver_register(&OMAP3_PLATFORM_DRIVER); - if (retval < 0) - goto error_omap3_platform; -#endif - #ifdef OF_PLATFORM_DRIVER retval = platform_driver_register(&OF_PLATFORM_DRIVER); if (retval < 0) @@ -1332,79 +1277,19 @@ static int __init ohci_hcd_mod_init(void) goto error_tmio; #endif -#ifdef S3C2410_PLATFORM_DRIVER - retval = platform_driver_register(&S3C2410_PLATFORM_DRIVER); - if (retval < 0) - goto error_s3c2410; -#endif - -#ifdef EXYNOS_PLATFORM_DRIVER - retval = platform_driver_register(&EXYNOS_PLATFORM_DRIVER); - if (retval < 0) - goto error_exynos; -#endif - -#ifdef EP93XX_PLATFORM_DRIVER - retval = platform_driver_register(&EP93XX_PLATFORM_DRIVER); - if (retval < 0) - goto error_ep93xx; -#endif - -#ifdef AT91_PLATFORM_DRIVER - retval = platform_driver_register(&AT91_PLATFORM_DRIVER); - if (retval < 0) - goto error_at91; -#endif - -#ifdef NXP_PLATFORM_DRIVER - retval = platform_driver_register(&NXP_PLATFORM_DRIVER); - if (retval < 0) - goto error_nxp; -#endif - #ifdef DAVINCI_PLATFORM_DRIVER retval = platform_driver_register(&DAVINCI_PLATFORM_DRIVER); if (retval < 0) goto error_davinci; #endif -#ifdef SPEAR_PLATFORM_DRIVER - retval = platform_driver_register(&SPEAR_PLATFORM_DRIVER); - if (retval < 0) - goto error_spear; -#endif - return retval; /* Error path */ -#ifdef SPEAR_PLATFORM_DRIVER - platform_driver_unregister(&SPEAR_PLATFORM_DRIVER); - error_spear: -#endif #ifdef DAVINCI_PLATFORM_DRIVER platform_driver_unregister(&DAVINCI_PLATFORM_DRIVER); error_davinci: #endif -#ifdef NXP_PLATFORM_DRIVER - platform_driver_unregister(&NXP_PLATFORM_DRIVER); - error_nxp: -#endif -#ifdef AT91_PLATFORM_DRIVER - platform_driver_unregister(&AT91_PLATFORM_DRIVER); - error_at91: -#endif -#ifdef EP93XX_PLATFORM_DRIVER - platform_driver_unregister(&EP93XX_PLATFORM_DRIVER); - error_ep93xx: -#endif -#ifdef EXYNOS_PLATFORM_DRIVER - platform_driver_unregister(&EXYNOS_PLATFORM_DRIVER); - error_exynos: -#endif -#ifdef S3C2410_PLATFORM_DRIVER - platform_driver_unregister(&S3C2410_PLATFORM_DRIVER); - error_s3c2410: -#endif #ifdef TMIO_OHCI_DRIVER platform_driver_unregister(&TMIO_OHCI_DRIVER); error_tmio: @@ -1421,14 +1306,6 @@ static int __init ohci_hcd_mod_init(void) platform_driver_unregister(&OF_PLATFORM_DRIVER); error_of_platform: #endif -#ifdef OMAP3_PLATFORM_DRIVER - platform_driver_unregister(&OMAP3_PLATFORM_DRIVER); - error_omap3_platform: -#endif -#ifdef OMAP1_PLATFORM_DRIVER - platform_driver_unregister(&OMAP1_PLATFORM_DRIVER); - error_omap1_platform: -#endif #ifdef PLATFORM_DRIVER platform_driver_unregister(&PLATFORM_DRIVER); error_platform: @@ -1450,27 +1327,9 @@ module_init(ohci_hcd_mod_init); static void __exit ohci_hcd_mod_exit(void) { -#ifdef SPEAR_PLATFORM_DRIVER - platform_driver_unregister(&SPEAR_PLATFORM_DRIVER); -#endif #ifdef DAVINCI_PLATFORM_DRIVER platform_driver_unregister(&DAVINCI_PLATFORM_DRIVER); #endif -#ifdef NXP_PLATFORM_DRIVER - platform_driver_unregister(&NXP_PLATFORM_DRIVER); -#endif -#ifdef AT91_PLATFORM_DRIVER - platform_driver_unregister(&AT91_PLATFORM_DRIVER); -#endif -#ifdef EP93XX_PLATFORM_DRIVER - platform_driver_unregister(&EP93XX_PLATFORM_DRIVER); -#endif -#ifdef EXYNOS_PLATFORM_DRIVER - platform_driver_unregister(&EXYNOS_PLATFORM_DRIVER); -#endif -#ifdef S3C2410_PLATFORM_DRIVER - platform_driver_unregister(&S3C2410_PLATFORM_DRIVER); -#endif #ifdef TMIO_OHCI_DRIVER platform_driver_unregister(&TMIO_OHCI_DRIVER); #endif @@ -1483,12 +1342,6 @@ static void __exit ohci_hcd_mod_exit(void) #ifdef OF_PLATFORM_DRIVER platform_driver_unregister(&OF_PLATFORM_DRIVER); #endif -#ifdef OMAP3_PLATFORM_DRIVER - platform_driver_unregister(&OMAP3_PLATFORM_DRIVER); -#endif -#ifdef OMAP1_PLATFORM_DRIVER - platform_driver_unregister(&OMAP1_PLATFORM_DRIVER); -#endif #ifdef PLATFORM_DRIVER platform_driver_unregister(&PLATFORM_DRIVER); #endif diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index 2347ab83f046..61705a760e7d 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -212,10 +212,11 @@ __acquires(ohci->lock) /* Sometimes PCI D3 suspend trashes frame timings ... */ periodic_reinit (ohci); - /* the following code is executed with ohci->lock held and - * irqs disabled if and only if autostopped is true + /* + * The following code is executed with ohci->lock held and + * irqs disabled if and only if autostopped is true. This + * will cause sparse to warn about a "context imbalance". */ - skip_resume: /* interrupts might have been disabled */ ohci_writel (ohci, OHCI_INTR_INIT, &ohci->regs->intrenable); @@ -531,7 +532,7 @@ ohci_hub_descriptor ( temp |= 0x0010; else if (rh & RH_A_OCPM) /* per-port overcurrent reporting? */ temp |= 0x0008; - desc->wHubCharacteristics = (__force __u16)cpu_to_hc16(ohci, temp); + desc->wHubCharacteristics = cpu_to_le16(temp); /* ports removable, and usb 1.0 legacy PortPwrCtrlMask */ rh = roothub_b (ohci); diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c index 7d7d507d54e8..9ab7e24ba65d 100644 --- a/drivers/usb/host/ohci-nxp.c +++ b/drivers/usb/host/ohci-nxp.c @@ -19,10 +19,19 @@ * or implied. */ #include <linux/clk.h> -#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/io.h> #include <linux/i2c.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/of.h> +#include <linux/platform_device.h> #include <linux/usb/isp1301.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> + +#include "ohci.h" + #include <mach/hardware.h> #include <asm/mach-types.h> @@ -57,6 +66,11 @@ #define start_int_umask(irq) #endif +#define DRIVER_DESC "OHCI NXP driver" + +static const char hcd_name[] = "ohci-nxp"; +static struct hc_driver __read_mostly ohci_nxp_hc_driver; + static struct i2c_client *isp1301_i2c_client; extern int usb_disabled(void); @@ -132,14 +146,14 @@ static inline void isp1301_vbus_off(void) OTG1_VBUS_DRV); } -static void nxp_start_hc(void) +static void ohci_nxp_start_hc(void) { unsigned long tmp = __raw_readl(USB_OTG_STAT_CONTROL) | HOST_EN; __raw_writel(tmp, USB_OTG_STAT_CONTROL); isp1301_vbus_on(); } -static void nxp_stop_hc(void) +static void ohci_nxp_stop_hc(void) { unsigned long tmp; isp1301_vbus_off(); @@ -147,68 +161,9 @@ static void nxp_stop_hc(void) __raw_writel(tmp, USB_OTG_STAT_CONTROL); } -static int ohci_nxp_start(struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - int ret; - - if ((ret = ohci_init(ohci)) < 0) - return ret; - - if ((ret = ohci_run(ohci)) < 0) { - dev_err(hcd->self.controller, "can't start\n"); - ohci_stop(hcd); - return ret; - } - return 0; -} - -static const struct hc_driver ohci_nxp_hc_driver = { - .description = hcd_name, - .product_desc = "nxp OHCI", - - /* - * generic hardware linkage - */ - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - - .hcd_priv_size = sizeof(struct ohci_hcd), - /* - * basic lifecycle operations - */ - .start = ohci_nxp_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - /* - * scheduling support - */ - .get_frame_number = ohci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -static int usb_hcd_nxp_probe(struct platform_device *pdev) +static int ohci_hcd_nxp_probe(struct platform_device *pdev) { struct usb_hcd *hcd = 0; - struct ohci_hcd *ohci; const struct hc_driver *driver = &ohci_nxp_hc_driver; struct resource *res; int ret = 0, irq; @@ -313,17 +268,15 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev) goto fail_resource; } - nxp_start_hc(); + ohci_nxp_start_hc(); platform_set_drvdata(pdev, hcd); - ohci = hcd_to_ohci(hcd); - ohci_hcd_init(ohci); dev_info(&pdev->dev, "at 0x%p, irq %d\n", hcd->regs, hcd->irq); ret = usb_add_hcd(hcd, irq, 0); if (ret == 0) return ret; - nxp_stop_hc(); + ohci_nxp_stop_hc(); fail_resource: usb_put_hcd(hcd); fail_hcd: @@ -345,12 +298,12 @@ fail_disable: return ret; } -static int usb_hcd_nxp_remove(struct platform_device *pdev) +static int ohci_hcd_nxp_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); usb_remove_hcd(hcd); - nxp_stop_hc(); + ohci_nxp_stop_hc(); usb_put_hcd(hcd); clk_disable(usb_pll_clk); clk_put(usb_pll_clk); @@ -366,20 +319,40 @@ static int usb_hcd_nxp_remove(struct platform_device *pdev) MODULE_ALIAS("platform:usb-ohci"); #ifdef CONFIG_OF -static const struct of_device_id usb_hcd_nxp_match[] = { +static const struct of_device_id ohci_hcd_nxp_match[] = { { .compatible = "nxp,ohci-nxp" }, {}, }; -MODULE_DEVICE_TABLE(of, usb_hcd_nxp_match); +MODULE_DEVICE_TABLE(of, ohci_hcd_nxp_match); #endif -static struct platform_driver usb_hcd_nxp_driver = { +static struct platform_driver ohci_hcd_nxp_driver = { .driver = { .name = "usb-ohci", .owner = THIS_MODULE, - .of_match_table = of_match_ptr(usb_hcd_nxp_match), + .of_match_table = of_match_ptr(ohci_hcd_nxp_match), }, - .probe = usb_hcd_nxp_probe, - .remove = usb_hcd_nxp_remove, + .probe = ohci_hcd_nxp_probe, + .remove = ohci_hcd_nxp_remove, }; +static int __init ohci_nxp_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ohci_init_driver(&ohci_nxp_hc_driver, NULL); + return platform_driver_register(&ohci_hcd_nxp_driver); +} +module_init(ohci_nxp_init); + +static void __exit ohci_nxp_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_nxp_driver); +} +module_exit(ohci_nxp_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 31d3a12eb486..f253214741ba 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -14,12 +14,21 @@ * This file is licenced under the GPL. */ -#include <linux/signal.h> -#include <linux/jiffies.h> -#include <linux/platform_device.h> #include <linux/clk.h> +#include <linux/dma-mapping.h> #include <linux/err.h> #include <linux/gpio.h> +#include <linux/io.h> +#include <linux/jiffies.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/usb/otg.h> +#include <linux/platform_device.h> +#include <linux/signal.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> + +#include "ohci.h" #include <asm/io.h> #include <asm/mach-types.h> @@ -42,10 +51,7 @@ #define OMAP1510_LB_MMU_RAM_H 0xfffec234 #define OMAP1510_LB_MMU_RAM_L 0xfffec238 - -#ifndef CONFIG_ARCH_OMAP -#error "This file is OMAP bus glue. CONFIG_OMAP must be defined." -#endif +#define DRIVER_DESC "OHCI OMAP driver" #ifdef CONFIG_TPS65010 #include <linux/i2c/tps65010.h> @@ -68,8 +74,9 @@ extern int ocpi_enable(void); static struct clk *usb_host_ck; static struct clk *usb_dc_ck; -static int host_enabled; -static int host_initialized; + +static const char hcd_name[] = "ohci-omap"; +static struct hc_driver __read_mostly ohci_omap_hc_driver; static void omap_ohci_clock_power(int on) { @@ -188,7 +195,7 @@ static void start_hnp(struct ohci_hcd *ohci) /*-------------------------------------------------------------------------*/ -static int ohci_omap_init(struct usb_hcd *hcd) +static int ohci_omap_reset(struct usb_hcd *hcd) { struct ohci_hcd *ohci = hcd_to_ohci(hcd); struct omap_usb_config *config = dev_get_platdata(hcd->self.controller); @@ -198,9 +205,9 @@ static int ohci_omap_init(struct usb_hcd *hcd) dev_dbg(hcd->self.controller, "starting USB Controller\n"); if (config->otg) { - ohci_to_hcd(ohci)->self.otg_port = config->otg; + hcd->self.otg_port = config->otg; /* default/minimum OTG power budget: 8 mA */ - ohci_to_hcd(ohci)->power_budget = 8; + hcd->power_budget = 8; } /* boards can use OTG transceivers in non-OTG modes */ @@ -238,9 +245,15 @@ static int ohci_omap_init(struct usb_hcd *hcd) omap_1510_local_bus_init(); } - if ((ret = ohci_init(ohci)) < 0) + ret = ohci_setup(hcd); + if (ret < 0) return ret; + if (config->otg || config->rwc) { + ohci->hc_control = OHCI_CTRL_RWC; + writel(OHCI_CTRL_RWC, &ohci->regs->control); + } + /* board-specific power switching and overcurrent support */ if (machine_is_omap_osk() || machine_is_omap_innovator()) { u32 rh = roothub_a (ohci); @@ -281,14 +294,6 @@ static int ohci_omap_init(struct usb_hcd *hcd) return 0; } -static void ohci_omap_stop(struct usb_hcd *hcd) -{ - dev_dbg(hcd->self.controller, "stopping USB Controller\n"); - ohci_stop(hcd); - omap_ohci_clock_power(0); -} - - /*-------------------------------------------------------------------------*/ /** @@ -304,7 +309,6 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, { int retval, irq; struct usb_hcd *hcd = 0; - struct ohci_hcd *ohci; if (pdev->num_resources != 2) { printk(KERN_ERR "hcd probe: invalid num_resources: %i\n", @@ -354,12 +358,6 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, goto err2; } - ohci = hcd_to_ohci(hcd); - ohci_hcd_init(ohci); - - host_initialized = 0; - host_enabled = 1; - irq = platform_get_irq(pdev, 0); if (irq < 0) { retval = -ENXIO; @@ -369,11 +367,6 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver, if (retval) goto err3; - host_initialized = 1; - - if (!host_enabled) - omap_ohci_clock_power(0); - return 0; err3: iounmap(hcd->regs); @@ -402,7 +395,9 @@ err0: static inline void usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev) { + dev_dbg(hcd->self.controller, "stopping USB Controller\n"); usb_remove_hcd(hcd); + omap_ohci_clock_power(0); if (!IS_ERR_OR_NULL(hcd->phy)) { (void) otg_set_host(hcd->phy->otg, 0); usb_put_phy(hcd->phy); @@ -418,76 +413,6 @@ usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev) /*-------------------------------------------------------------------------*/ -static int -ohci_omap_start (struct usb_hcd *hcd) -{ - struct omap_usb_config *config; - struct ohci_hcd *ohci = hcd_to_ohci (hcd); - int ret; - - if (!host_enabled) - return 0; - config = dev_get_platdata(hcd->self.controller); - if (config->otg || config->rwc) { - ohci->hc_control = OHCI_CTRL_RWC; - writel(OHCI_CTRL_RWC, &ohci->regs->control); - } - - if ((ret = ohci_run (ohci)) < 0) { - dev_err(hcd->self.controller, "can't start\n"); - ohci_stop (hcd); - return ret; - } - return 0; -} - -/*-------------------------------------------------------------------------*/ - -static const struct hc_driver ohci_omap_hc_driver = { - .description = hcd_name, - .product_desc = "OMAP OHCI", - .hcd_priv_size = sizeof(struct ohci_hcd), - - /* - * generic hardware linkage - */ - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - - /* - * basic lifecycle operations - */ - .reset = ohci_omap_init, - .start = ohci_omap_start, - .stop = ohci_omap_stop, - .shutdown = ohci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - /* - * scheduling support - */ - .get_frame_number = ohci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -/*-------------------------------------------------------------------------*/ - static int ohci_hcd_omap_drv_probe(struct platform_device *dev) { return usb_hcd_omap_probe(&ohci_omap_hc_driver, dev); @@ -506,16 +431,23 @@ static int ohci_hcd_omap_drv_remove(struct platform_device *dev) #ifdef CONFIG_PM -static int ohci_omap_suspend(struct platform_device *dev, pm_message_t message) +static int ohci_omap_suspend(struct platform_device *pdev, pm_message_t message) { - struct ohci_hcd *ohci = hcd_to_ohci(platform_get_drvdata(dev)); + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + bool do_wakeup = device_may_wakeup(&pdev->dev); + int ret; if (time_before(jiffies, ohci->next_statechange)) msleep(5); ohci->next_statechange = jiffies; + ret = ohci_suspend(hcd, do_wakeup); + if (ret) + return ret; + omap_ohci_clock_power(0); - return 0; + return ret; } static int ohci_omap_resume(struct platform_device *dev) @@ -553,4 +485,29 @@ static struct platform_driver ohci_hcd_omap_driver = { }, }; +static const struct ohci_driver_overrides omap_overrides __initconst = { + .product_desc = "OMAP OHCI", + .reset = ohci_omap_reset +}; + +static int __init ohci_omap_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ohci_init_driver(&ohci_omap_hc_driver, &omap_overrides); + return platform_driver_register(&ohci_hcd_omap_driver); +} +module_init(ohci_omap_init); + +static void __exit ohci_omap_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_omap_driver); +} +module_exit(ohci_omap_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_ALIAS("platform:ohci"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c index a09af26f69ed..408d06a68571 100644 --- a/drivers/usb/host/ohci-omap3.c +++ b/drivers/usb/host/ohci-omap3.c @@ -29,90 +29,22 @@ * - add kernel-doc */ +#include <linux/dma-mapping.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/usb/otg.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> -#include <linux/of.h> -#include <linux/dma-mapping.h> - -/*-------------------------------------------------------------------------*/ - -static int ohci_omap3_init(struct usb_hcd *hcd) -{ - dev_dbg(hcd->self.controller, "starting OHCI controller\n"); - - return ohci_init(hcd_to_ohci(hcd)); -} - -/*-------------------------------------------------------------------------*/ - -static int ohci_omap3_start(struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - int ret; - - /* - * RemoteWakeupConnected has to be set explicitly before - * calling ohci_run. The reset value of RWC is 0. - */ - ohci->hc_control = OHCI_CTRL_RWC; - writel(OHCI_CTRL_RWC, &ohci->regs->control); - - ret = ohci_run(ohci); - - if (ret < 0) { - dev_err(hcd->self.controller, "can't start\n"); - ohci_stop(hcd); - } +#include <linux/usb.h> +#include <linux/usb/hcd.h> - return ret; -} +#include "ohci.h" -/*-------------------------------------------------------------------------*/ +#define DRIVER_DESC "OHCI OMAP3 driver" -static const struct hc_driver ohci_omap3_hc_driver = { - .description = hcd_name, - .product_desc = "OMAP3 OHCI Host Controller", - .hcd_priv_size = sizeof(struct ohci_hcd), - - /* - * generic hardware linkage - */ - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - - /* - * basic lifecycle operations - */ - .reset = ohci_omap3_init, - .start = ohci_omap3_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - /* - * scheduling support - */ - .get_frame_number = ohci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -/*-------------------------------------------------------------------------*/ +static const char hcd_name[] = "ohci-omap3"; +static struct hc_driver __read_mostly ohci_omap3_hc_driver; /* * configure so an HC device and id are always provided @@ -129,6 +61,7 @@ static const struct hc_driver ohci_omap3_hc_driver = { static int ohci_hcd_omap3_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; + struct ohci_hcd *ohci; struct usb_hcd *hcd = NULL; void __iomem *regs = NULL; struct resource *res; @@ -185,7 +118,12 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev) pm_runtime_enable(dev); pm_runtime_get_sync(dev); - ohci_hcd_init(hcd_to_ohci(hcd)); + ohci = hcd_to_ohci(hcd); + /* + * RemoteWakeupConnected has to be set explicitly before + * calling ohci_run. The reset value of RWC is 0. + */ + ohci->hc_control = OHCI_CTRL_RWC; ret = usb_add_hcd(hcd, irq, 0); if (ret) { @@ -248,5 +186,25 @@ static struct platform_driver ohci_hcd_omap3_driver = { }, }; +static int __init ohci_omap3_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ohci_init_driver(&ohci_omap3_hc_driver, NULL); + return platform_driver_register(&ohci_hcd_omap3_driver); +} +module_init(ohci_omap3_init); + +static void __exit ohci_omap3_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_omap3_driver); +} +module_exit(ohci_omap3_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_ALIAS("platform:ohci-omap3"); MODULE_AUTHOR("Anand Gadiyar <gadiyar@ti.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index ec337c2bd5e0..90879e9ccbec 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -150,28 +150,16 @@ static int ohci_quirk_nec(struct usb_hcd *hcd) static int ohci_quirk_amd700(struct usb_hcd *hcd) { struct ohci_hcd *ohci = hcd_to_ohci(hcd); - struct pci_dev *amd_smbus_dev; - u8 rev; if (usb_amd_find_chipset_info()) ohci->flags |= OHCI_QUIRK_AMD_PLL; - amd_smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI, - PCI_DEVICE_ID_ATI_SBX00_SMBUS, NULL); - if (!amd_smbus_dev) - return 0; - - rev = amd_smbus_dev->revision; - /* SB800 needs pre-fetch fix */ - if ((rev >= 0x40) && (rev <= 0x4f)) { + if (usb_amd_prefetch_quirk()) { ohci->flags |= OHCI_QUIRK_AMD_PREFETCH; ohci_dbg(ohci, "enabled AMD prefetch quirk\n"); } - pci_dev_put(amd_smbus_dev); - amd_smbus_dev = NULL; - return 0; } @@ -323,3 +311,4 @@ module_exit(ohci_pci_cleanup); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); +MODULE_SOFTDEP("pre: ehci_pci"); diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c index a4c6410f0ed4..f351ff5b171f 100644 --- a/drivers/usb/host/ohci-platform.c +++ b/drivers/usb/host/ohci-platform.c @@ -139,14 +139,21 @@ static int ohci_platform_remove(struct platform_device *dev) static int ohci_platform_suspend(struct device *dev) { - struct usb_ohci_pdata *pdata = dev_get_platdata(dev); + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct usb_ohci_pdata *pdata = dev->platform_data; struct platform_device *pdev = container_of(dev, struct platform_device, dev); + bool do_wakeup = device_may_wakeup(dev); + int ret; + + ret = ohci_suspend(hcd, do_wakeup); + if (ret) + return ret; if (pdata->power_suspend) pdata->power_suspend(pdev); - return 0; + return ret; } static int ohci_platform_resume(struct device *dev) diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index 93371a235e82..deea5d1d6394 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -19,15 +19,26 @@ * This file is licenced under the GPL. */ -#include <linux/device.h> -#include <linux/signal.h> -#include <linux/platform_device.h> #include <linux/clk.h> +#include <linux/device.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/of_platform.h> #include <linux/of_gpio.h> -#include <mach/hardware.h> #include <linux/platform_data/usb-ohci-pxa27x.h> #include <linux/platform_data/usb-pxa3xx-ulpi.h> +#include <linux/platform_device.h> +#include <linux/signal.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> +#include <linux/usb/otg.h> + +#include <mach/hardware.h> + +#include "ohci.h" + +#define DRIVER_DESC "OHCI PXA27x/PXA3x driver" /* * UHC: USB Host Controller (OHCI-like) register definitions @@ -101,16 +112,16 @@ #define PXA_UHC_MAX_PORTNUM 3 -struct pxa27x_ohci { - /* must be 1st member here for hcd_to_ohci() to work */ - struct ohci_hcd ohci; +static const char hcd_name[] = "ohci-pxa27x"; + +static struct hc_driver __read_mostly ohci_pxa27x_hc_driver; - struct device *dev; +struct pxa27x_ohci { struct clk *clk; void __iomem *mmio_base; }; -#define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)hcd_to_ohci(hcd) +#define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)(hcd_to_ohci(hcd)->priv) /* PMM_NPS_MODE -- PMM Non-power switching mode @@ -122,10 +133,10 @@ struct pxa27x_ohci { PMM_PERPORT_MODE -- PMM per port switching mode Ports are powered individually. */ -static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode) +static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *pxa_ohci, int mode) { - uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA); - uint32_t uhcrhdb = __raw_readl(ohci->mmio_base + UHCRHDB); + uint32_t uhcrhda = __raw_readl(pxa_ohci->mmio_base + UHCRHDA); + uint32_t uhcrhdb = __raw_readl(pxa_ohci->mmio_base + UHCRHDB); switch (mode) { case PMM_NPS_MODE: @@ -149,20 +160,18 @@ static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode) uhcrhda |= RH_A_NPS; } - __raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA); - __raw_writel(uhcrhdb, ohci->mmio_base + UHCRHDB); + __raw_writel(uhcrhda, pxa_ohci->mmio_base + UHCRHDA); + __raw_writel(uhcrhdb, pxa_ohci->mmio_base + UHCRHDB); return 0; } -extern int usb_disabled(void); - /*-------------------------------------------------------------------------*/ -static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci, +static inline void pxa27x_setup_hc(struct pxa27x_ohci *pxa_ohci, struct pxaohci_platform_data *inf) { - uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR); - uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA); + uint32_t uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR); + uint32_t uhcrhda = __raw_readl(pxa_ohci->mmio_base + UHCRHDA); if (inf->flags & ENABLE_PORT1) uhchr &= ~UHCHR_SSEP1; @@ -194,17 +203,17 @@ static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci, uhcrhda |= UHCRHDA_POTPGT(inf->power_on_delay / 2); } - __raw_writel(uhchr, ohci->mmio_base + UHCHR); - __raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA); + __raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR); + __raw_writel(uhcrhda, pxa_ohci->mmio_base + UHCRHDA); } -static inline void pxa27x_reset_hc(struct pxa27x_ohci *ohci) +static inline void pxa27x_reset_hc(struct pxa27x_ohci *pxa_ohci) { - uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR); + uint32_t uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR); - __raw_writel(uhchr | UHCHR_FHR, ohci->mmio_base + UHCHR); + __raw_writel(uhchr | UHCHR_FHR, pxa_ohci->mmio_base + UHCHR); udelay(11); - __raw_writel(uhchr & ~UHCHR_FHR, ohci->mmio_base + UHCHR); + __raw_writel(uhchr & ~UHCHR_FHR, pxa_ohci->mmio_base + UHCHR); } #ifdef CONFIG_PXA27x @@ -213,25 +222,26 @@ extern void pxa27x_clear_otgph(void); #define pxa27x_clear_otgph() do {} while (0) #endif -static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) +static int pxa27x_start_hc(struct pxa27x_ohci *pxa_ohci, struct device *dev) { int retval = 0; struct pxaohci_platform_data *inf; uint32_t uhchr; + struct usb_hcd *hcd = dev_get_drvdata(dev); inf = dev_get_platdata(dev); - clk_prepare_enable(ohci->clk); + clk_prepare_enable(pxa_ohci->clk); - pxa27x_reset_hc(ohci); + pxa27x_reset_hc(pxa_ohci); - uhchr = __raw_readl(ohci->mmio_base + UHCHR) | UHCHR_FSBIR; - __raw_writel(uhchr, ohci->mmio_base + UHCHR); + uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR) | UHCHR_FSBIR; + __raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR); - while (__raw_readl(ohci->mmio_base + UHCHR) & UHCHR_FSBIR) + while (__raw_readl(pxa_ohci->mmio_base + UHCHR) & UHCHR_FSBIR) cpu_relax(); - pxa27x_setup_hc(ohci, inf); + pxa27x_setup_hc(pxa_ohci, inf); if (inf->init) retval = inf->init(dev); @@ -240,38 +250,39 @@ static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev) return retval; if (cpu_is_pxa3xx()) - pxa3xx_u2d_start_hc(&ohci_to_hcd(&ohci->ohci)->self); + pxa3xx_u2d_start_hc(&hcd->self); - uhchr = __raw_readl(ohci->mmio_base + UHCHR) & ~UHCHR_SSE; - __raw_writel(uhchr, ohci->mmio_base + UHCHR); - __raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, ohci->mmio_base + UHCHIE); + uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR) & ~UHCHR_SSE; + __raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR); + __raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, pxa_ohci->mmio_base + UHCHIE); /* Clear any OTG Pin Hold */ pxa27x_clear_otgph(); return 0; } -static void pxa27x_stop_hc(struct pxa27x_ohci *ohci, struct device *dev) +static void pxa27x_stop_hc(struct pxa27x_ohci *pxa_ohci, struct device *dev) { struct pxaohci_platform_data *inf; + struct usb_hcd *hcd = dev_get_drvdata(dev); uint32_t uhccoms; inf = dev_get_platdata(dev); if (cpu_is_pxa3xx()) - pxa3xx_u2d_stop_hc(&ohci_to_hcd(&ohci->ohci)->self); + pxa3xx_u2d_stop_hc(&hcd->self); if (inf->exit) inf->exit(dev); - pxa27x_reset_hc(ohci); + pxa27x_reset_hc(pxa_ohci); /* Host Controller Reset */ - uhccoms = __raw_readl(ohci->mmio_base + UHCCOMS) | 0x01; - __raw_writel(uhccoms, ohci->mmio_base + UHCCOMS); + uhccoms = __raw_readl(pxa_ohci->mmio_base + UHCCOMS) | 0x01; + __raw_writel(uhccoms, pxa_ohci->mmio_base + UHCCOMS); udelay(10); - clk_disable_unprepare(ohci->clk); + clk_disable_unprepare(pxa_ohci->clk); } #ifdef CONFIG_OF @@ -356,7 +367,8 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device int retval, irq; struct usb_hcd *hcd; struct pxaohci_platform_data *inf; - struct pxa27x_ohci *ohci; + struct pxa27x_ohci *pxa_ohci; + struct ohci_hcd *ohci; struct resource *r; struct clk *usb_clk; @@ -409,29 +421,31 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device } /* initialize "struct pxa27x_ohci" */ - ohci = (struct pxa27x_ohci *)hcd_to_ohci(hcd); - ohci->dev = &pdev->dev; - ohci->clk = usb_clk; - ohci->mmio_base = (void __iomem *)hcd->regs; + pxa_ohci = to_pxa27x_ohci(hcd); + pxa_ohci->clk = usb_clk; + pxa_ohci->mmio_base = (void __iomem *)hcd->regs; - if ((retval = pxa27x_start_hc(ohci, &pdev->dev)) < 0) { + retval = pxa27x_start_hc(pxa_ohci, &pdev->dev); + if (retval < 0) { pr_debug("pxa27x_start_hc failed"); goto err3; } /* Select Power Management Mode */ - pxa27x_ohci_select_pmm(ohci, inf->port_mode); + pxa27x_ohci_select_pmm(pxa_ohci, inf->port_mode); if (inf->power_budget) hcd->power_budget = inf->power_budget; - ohci_hcd_init(hcd_to_ohci(hcd)); + /* The value of NDP in roothub_a is incorrect on this hardware */ + ohci = hcd_to_ohci(hcd); + ohci->num_ports = 3; retval = usb_add_hcd(hcd, irq, 0); if (retval == 0) return retval; - pxa27x_stop_hc(ohci, &pdev->dev); + pxa27x_stop_hc(pxa_ohci, &pdev->dev); err3: iounmap(hcd->regs); err2: @@ -459,88 +473,18 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device */ void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *pdev) { - struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); + struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd); usb_remove_hcd(hcd); - pxa27x_stop_hc(ohci, &pdev->dev); + pxa27x_stop_hc(pxa_ohci, &pdev->dev); iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + clk_put(pxa_ohci->clk); usb_put_hcd(hcd); - clk_put(ohci->clk); -} - -/*-------------------------------------------------------------------------*/ - -static int -ohci_pxa27x_start (struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci (hcd); - int ret; - - ohci_dbg (ohci, "ohci_pxa27x_start, ohci:%p", ohci); - - /* The value of NDP in roothub_a is incorrect on this hardware */ - ohci->num_ports = 3; - - if ((ret = ohci_init(ohci)) < 0) - return ret; - - if ((ret = ohci_run (ohci)) < 0) { - dev_err(hcd->self.controller, "can't start %s", - hcd->self.bus_name); - ohci_stop (hcd); - return ret; - } - - return 0; } /*-------------------------------------------------------------------------*/ -static const struct hc_driver ohci_pxa27x_hc_driver = { - .description = hcd_name, - .product_desc = "PXA27x OHCI", - .hcd_priv_size = sizeof(struct pxa27x_ohci), - - /* - * generic hardware linkage - */ - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - - /* - * basic lifecycle operations - */ - .start = ohci_pxa27x_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - /* - * scheduling support - */ - .get_frame_number = ohci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -/*-------------------------------------------------------------------------*/ - static int ohci_hcd_pxa27x_drv_probe(struct platform_device *pdev) { pr_debug ("In ohci_hcd_pxa27x_drv_probe"); @@ -563,32 +507,42 @@ static int ohci_hcd_pxa27x_drv_remove(struct platform_device *pdev) static int ohci_hcd_pxa27x_drv_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); + struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + bool do_wakeup = device_may_wakeup(dev); + int ret; + - if (time_before(jiffies, ohci->ohci.next_statechange)) + if (time_before(jiffies, ohci->next_statechange)) msleep(5); - ohci->ohci.next_statechange = jiffies; + ohci->next_statechange = jiffies; - pxa27x_stop_hc(ohci, dev); - return 0; + ret = ohci_suspend(hcd, do_wakeup); + if (ret) + return ret; + + pxa27x_stop_hc(pxa_ohci, dev); + return ret; } static int ohci_hcd_pxa27x_drv_resume(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd); + struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd); struct pxaohci_platform_data *inf = dev_get_platdata(dev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); int status; - if (time_before(jiffies, ohci->ohci.next_statechange)) + if (time_before(jiffies, ohci->next_statechange)) msleep(5); - ohci->ohci.next_statechange = jiffies; + ohci->next_statechange = jiffies; - if ((status = pxa27x_start_hc(ohci, dev)) < 0) + status = pxa27x_start_hc(pxa_ohci, dev); + if (status < 0) return status; /* Select Power Management Mode */ - pxa27x_ohci_select_pmm(ohci, inf->port_mode); + pxa27x_ohci_select_pmm(pxa_ohci, inf->port_mode); ohci_resume(hcd, false); return 0; @@ -600,9 +554,6 @@ static const struct dev_pm_ops ohci_hcd_pxa27x_pm_ops = { }; #endif -/* work with hotplug and coldplug */ -MODULE_ALIAS("platform:pxa27x-ohci"); - static struct platform_driver ohci_hcd_pxa27x_driver = { .probe = ohci_hcd_pxa27x_drv_probe, .remove = ohci_hcd_pxa27x_drv_remove, @@ -617,3 +568,27 @@ static struct platform_driver ohci_hcd_pxa27x_driver = { }, }; +static const struct ohci_driver_overrides pxa27x_overrides __initconst = { + .extra_priv_size = sizeof(struct pxa27x_ohci), +}; + +static int __init ohci_pxa27x_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + ohci_init_driver(&ohci_pxa27x_hc_driver, &pxa27x_overrides); + return platform_driver_register(&ohci_hcd_pxa27x_driver); +} +module_init(ohci_pxa27x_init); + +static void __exit ohci_pxa27x_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_pxa27x_driver); +} +module_exit(ohci_pxa27x_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:pxa27x-ohci"); diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c index 4919afa4125e..be3429e08d90 100644 --- a/drivers/usb/host/ohci-s3c2410.c +++ b/drivers/usb/host/ohci-s3c2410.c @@ -19,19 +19,36 @@ * This file is licenced under the GPL. */ -#include <linux/platform_device.h> #include <linux/clk.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> #include <linux/platform_data/usb-ohci-s3c2410.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> + +#include "ohci.h" + #define valid_port(idx) ((idx) == 1 || (idx) == 2) /* clock device associated with the hcd */ + +#define DRIVER_DESC "OHCI S3C2410 driver" + +static const char hcd_name[] = "ohci-s3c2410"; + static struct clk *clk; static struct clk *usb_clk; /* forward definitions */ +static int (*orig_ohci_hub_control)(struct usb_hcd *hcd, u16 typeReq, + u16 wValue, u16 wIndex, char *buf, u16 wLength); +static int (*orig_ohci_hub_status_data)(struct usb_hcd *hcd, char *buf); + static void s3c2410_hcd_oc(struct s3c2410_hcd_info *info, int port_oc); /* conversion functions */ @@ -93,7 +110,7 @@ ohci_s3c2410_hub_status_data(struct usb_hcd *hcd, char *buf) int orig; int portno; - orig = ohci_hub_status_data(hcd, buf); + orig = orig_ohci_hub_status_data(hcd, buf); if (info == NULL) return orig; @@ -164,7 +181,7 @@ static int ohci_s3c2410_hub_control( * process the request straight away and exit */ if (info == NULL) { - ret = ohci_hub_control(hcd, typeReq, wValue, + ret = orig_ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength); goto out; } @@ -214,7 +231,7 @@ static int ohci_s3c2410_hub_control( break; } - ret = ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength); + ret = orig_ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength); if (ret) goto out; @@ -374,8 +391,6 @@ static int usb_hcd_s3c2410_probe(const struct hc_driver *driver, s3c2410_start_hc(dev, hcd); - ohci_hcd_init(hcd_to_ohci(hcd)); - retval = usb_add_hcd(hcd, dev->resource[1].start, 0); if (retval != 0) goto err_ioremap; @@ -392,71 +407,7 @@ static int usb_hcd_s3c2410_probe(const struct hc_driver *driver, /*-------------------------------------------------------------------------*/ -static int -ohci_s3c2410_start(struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - int ret; - - ret = ohci_init(ohci); - if (ret < 0) - return ret; - - ret = ohci_run(ohci); - if (ret < 0) { - dev_err(hcd->self.controller, "can't start %s\n", - hcd->self.bus_name); - ohci_stop(hcd); - return ret; - } - - return 0; -} - - -static const struct hc_driver ohci_s3c2410_hc_driver = { - .description = hcd_name, - .product_desc = "S3C24XX OHCI", - .hcd_priv_size = sizeof(struct ohci_hcd), - - /* - * generic hardware linkage - */ - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - - /* - * basic lifecycle operations - */ - .start = ohci_s3c2410_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - /* - * scheduling support - */ - .get_frame_number = ohci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ohci_s3c2410_hub_status_data, - .hub_control = ohci_s3c2410_hub_control, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - .start_port_reset = ohci_start_port_reset, -}; - -/* device driver */ +static struct hc_driver __read_mostly ohci_s3c2410_hc_driver; static int ohci_hcd_s3c2410_drv_probe(struct platform_device *pdev) { @@ -533,4 +484,39 @@ static struct platform_driver ohci_hcd_s3c2410_driver = { }, }; +static int __init ohci_s3c2410_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + ohci_init_driver(&ohci_s3c2410_hc_driver, NULL); + + /* + * The Samsung HW has some unusual quirks, which require + * Sumsung-specific workarounds. We override certain hc_driver + * functions here to achieve that. We explicitly do not enhance + * ohci_driver_overrides to allow this more easily, since this + * is an unusual case, and we don't want to encourage others to + * override these functions by making it too easy. + */ + + orig_ohci_hub_control = ohci_s3c2410_hc_driver.hub_control; + orig_ohci_hub_status_data = ohci_s3c2410_hc_driver.hub_status_data; + + ohci_s3c2410_hc_driver.hub_status_data = ohci_s3c2410_hub_status_data; + ohci_s3c2410_hc_driver.hub_control = ohci_s3c2410_hub_control; + + return platform_driver_register(&ohci_hcd_s3c2410_driver); +} +module_init(ohci_s3c2410_init); + +static void __exit ohci_s3c2410_cleanup(void) +{ + platform_driver_unregister(&ohci_hcd_s3c2410_driver); +} +module_exit(ohci_s3c2410_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:s3c2410-ohci"); diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c index d479d5ddab88..2a5de5fecd8f 100644 --- a/drivers/usb/host/ohci-sm501.c +++ b/drivers/usb/host/ohci-sm501.c @@ -216,14 +216,21 @@ static int ohci_hcd_sm501_drv_remove(struct platform_device *pdev) static int ohci_sm501_suspend(struct platform_device *pdev, pm_message_t msg) { struct device *dev = &pdev->dev; - struct ohci_hcd *ohci = hcd_to_ohci(platform_get_drvdata(pdev)); + struct usb_hcd *hcd = platform_get_drvdata(pdev); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + bool do_wakeup = device_may_wakeup(dev); + int ret; if (time_before(jiffies, ohci->next_statechange)) msleep(5); ohci->next_statechange = jiffies; + ret = ohci_suspend(hcd, do_wakeup); + if (ret) + return ret; + sm501_unit_power(dev->parent, SM501_GATE_USB_HOST, 0); - return 0; + return ret; } static int ohci_sm501_resume(struct platform_device *pdev) diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c index cc9dd9e4f05e..31ff3fc4e26f 100644 --- a/drivers/usb/host/ohci-spear.c +++ b/drivers/usb/host/ohci-spear.c @@ -11,92 +11,37 @@ * warranty of any kind, whether express or implied. */ -#include <linux/signal.h> -#include <linux/platform_device.h> #include <linux/clk.h> +#include <linux/dma-mapping.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/signal.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> + +#include "ohci.h" +#define DRIVER_DESC "OHCI SPEAr driver" + +static const char hcd_name[] = "SPEAr-ohci"; struct spear_ohci { - struct ohci_hcd ohci; struct clk *clk; }; -#define to_spear_ohci(hcd) (struct spear_ohci *)hcd_to_ohci(hcd) - -static void spear_start_ohci(struct spear_ohci *ohci) -{ - clk_prepare_enable(ohci->clk); -} - -static void spear_stop_ohci(struct spear_ohci *ohci) -{ - clk_disable_unprepare(ohci->clk); -} - -static int ohci_spear_start(struct usb_hcd *hcd) -{ - struct ohci_hcd *ohci = hcd_to_ohci(hcd); - int ret; - - ret = ohci_init(ohci); - if (ret < 0) - return ret; - ohci->regs = hcd->regs; - - ret = ohci_run(ohci); - if (ret < 0) { - dev_err(hcd->self.controller, "can't start\n"); - ohci_stop(hcd); - return ret; - } - - create_debug_files(ohci); - -#ifdef DEBUG - ohci_dump(ohci, 1); -#endif - return 0; -} - -static const struct hc_driver ohci_spear_hc_driver = { - .description = hcd_name, - .product_desc = "SPEAr OHCI", - .hcd_priv_size = sizeof(struct spear_ohci), - - /* generic hardware linkage */ - .irq = ohci_irq, - .flags = HCD_USB11 | HCD_MEMORY, - - /* basic lifecycle operations */ - .start = ohci_spear_start, - .stop = ohci_stop, - .shutdown = ohci_shutdown, -#ifdef CONFIG_PM - .bus_suspend = ohci_bus_suspend, - .bus_resume = ohci_bus_resume, -#endif - - /* managing i/o requests and associated device resources */ - .urb_enqueue = ohci_urb_enqueue, - .urb_dequeue = ohci_urb_dequeue, - .endpoint_disable = ohci_endpoint_disable, - - /* scheduling support */ - .get_frame_number = ohci_get_frame, +#define to_spear_ohci(hcd) (struct spear_ohci *)(hcd_to_ohci(hcd)->priv) - /* root hub support */ - .hub_status_data = ohci_hub_status_data, - .hub_control = ohci_hub_control, - - .start_port_reset = ohci_start_port_reset, -}; +static struct hc_driver __read_mostly ohci_spear_hc_driver; static int spear_ohci_hcd_drv_probe(struct platform_device *pdev) { const struct hc_driver *driver = &ohci_spear_hc_driver; + struct ohci_hcd *ohci; struct usb_hcd *hcd = NULL; struct clk *usbh_clk; - struct spear_ohci *ohci_p; + struct spear_ohci *sohci_p; struct resource *res; int retval, irq; @@ -151,16 +96,18 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev) goto err_put_hcd; } - ohci_p = (struct spear_ohci *)hcd_to_ohci(hcd); - ohci_p->clk = usbh_clk; - spear_start_ohci(ohci_p); - ohci_hcd_init(hcd_to_ohci(hcd)); + sohci_p = to_spear_ohci(hcd); + sohci_p->clk = usbh_clk; + + clk_prepare_enable(sohci_p->clk); + + ohci = hcd_to_ohci(hcd); retval = usb_add_hcd(hcd, platform_get_irq(pdev, 0), 0); if (retval == 0) return retval; - spear_stop_ohci(ohci_p); + clk_disable_unprepare(sohci_p->clk); err_put_hcd: usb_put_hcd(hcd); fail: @@ -172,11 +119,11 @@ fail: static int spear_ohci_hcd_drv_remove(struct platform_device *pdev) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - struct spear_ohci *ohci_p = to_spear_ohci(hcd); + struct spear_ohci *sohci_p = to_spear_ohci(hcd); usb_remove_hcd(hcd); - if (ohci_p->clk) - spear_stop_ohci(ohci_p); + if (sohci_p->clk) + clk_disable_unprepare(sohci_p->clk); usb_put_hcd(hcd); return 0; @@ -188,13 +135,14 @@ static int spear_ohci_hcd_drv_suspend(struct platform_device *dev, { struct usb_hcd *hcd = platform_get_drvdata(dev); struct ohci_hcd *ohci = hcd_to_ohci(hcd); - struct spear_ohci *ohci_p = to_spear_ohci(hcd); + struct spear_ohci *sohci_p = to_spear_ohci(hcd); if (time_before(jiffies, ohci->next_statechange)) msleep(5); ohci->next_statechange = jiffies; - spear_stop_ohci(ohci_p); + clk_disable_unprepare(sohci_p->clk); + return 0; } @@ -202,13 +150,13 @@ static int spear_ohci_hcd_drv_resume(struct platform_device *dev) { struct usb_hcd *hcd = platform_get_drvdata(dev); struct ohci_hcd *ohci = hcd_to_ohci(hcd); - struct spear_ohci *ohci_p = to_spear_ohci(hcd); + struct spear_ohci *sohci_p = to_spear_ohci(hcd); if (time_before(jiffies, ohci->next_statechange)) msleep(5); ohci->next_statechange = jiffies; - spear_start_ohci(ohci_p); + clk_prepare_enable(sohci_p->clk); ohci_resume(hcd, false); return 0; } @@ -234,4 +182,28 @@ static struct platform_driver spear_ohci_hcd_driver = { }, }; +static const struct ohci_driver_overrides spear_overrides __initconst = { + .extra_priv_size = sizeof(struct spear_ohci), +}; +static int __init ohci_spear_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ohci_init_driver(&ohci_spear_hc_driver, &spear_overrides); + return platform_driver_register(&spear_ohci_hcd_driver); +} +module_init(ohci_spear_init); + +static void __exit ohci_spear_cleanup(void) +{ + platform_driver_unregister(&spear_ohci_hcd_driver); +} +module_exit(ohci_spear_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Deepak Sikri"); +MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:spear-ohci"); diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 2c76ef1320ea..dfbdd3aefe98 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -79,11 +79,30 @@ #define USB_INTEL_USB3_PSSEN 0xD8 #define USB_INTEL_USB3PRM 0xDC +/* + * amd_chipset_gen values represent AMD different chipset generations + */ +enum amd_chipset_gen { + NOT_AMD_CHIPSET = 0, + AMD_CHIPSET_SB600, + AMD_CHIPSET_SB700, + AMD_CHIPSET_SB800, + AMD_CHIPSET_HUDSON2, + AMD_CHIPSET_BOLTON, + AMD_CHIPSET_YANGTZE, + AMD_CHIPSET_UNKNOWN, +}; + +struct amd_chipset_type { + enum amd_chipset_gen gen; + u8 rev; +}; + static struct amd_chipset_info { struct pci_dev *nb_dev; struct pci_dev *smbus_dev; int nb_type; - int sb_type; + struct amd_chipset_type sb_type; int isoc_reqs; int probe_count; int probe_result; @@ -91,6 +110,51 @@ static struct amd_chipset_info { static DEFINE_SPINLOCK(amd_lock); +/* + * amd_chipset_sb_type_init - initialize amd chipset southbridge type + * + * AMD FCH/SB generation and revision is identified by SMBus controller + * vendor, device and revision IDs. + * + * Returns: 1 if it is an AMD chipset, 0 otherwise. + */ +static int amd_chipset_sb_type_init(struct amd_chipset_info *pinfo) +{ + u8 rev = 0; + pinfo->sb_type.gen = AMD_CHIPSET_UNKNOWN; + + pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI, + PCI_DEVICE_ID_ATI_SBX00_SMBUS, NULL); + if (pinfo->smbus_dev) { + rev = pinfo->smbus_dev->revision; + if (rev >= 0x10 && rev <= 0x1f) + pinfo->sb_type.gen = AMD_CHIPSET_SB600; + else if (rev >= 0x30 && rev <= 0x3f) + pinfo->sb_type.gen = AMD_CHIPSET_SB700; + else if (rev >= 0x40 && rev <= 0x4f) + pinfo->sb_type.gen = AMD_CHIPSET_SB800; + } else { + pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD, + PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL); + + if (!pinfo->smbus_dev) { + pinfo->sb_type.gen = NOT_AMD_CHIPSET; + return 0; + } + + rev = pinfo->smbus_dev->revision; + if (rev >= 0x11 && rev <= 0x14) + pinfo->sb_type.gen = AMD_CHIPSET_HUDSON2; + else if (rev >= 0x15 && rev <= 0x18) + pinfo->sb_type.gen = AMD_CHIPSET_BOLTON; + else if (rev >= 0x39 && rev <= 0x3a) + pinfo->sb_type.gen = AMD_CHIPSET_YANGTZE; + } + + pinfo->sb_type.rev = rev; + return 1; +} + void sb800_prefetch(struct device *dev, int on) { u16 misc; @@ -106,7 +170,6 @@ EXPORT_SYMBOL_GPL(sb800_prefetch); int usb_amd_find_chipset_info(void) { - u8 rev = 0; unsigned long flags; struct amd_chipset_info info; int ret; @@ -122,27 +185,17 @@ int usb_amd_find_chipset_info(void) memset(&info, 0, sizeof(info)); spin_unlock_irqrestore(&amd_lock, flags); - info.smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI, 0x4385, NULL); - if (info.smbus_dev) { - rev = info.smbus_dev->revision; - if (rev >= 0x40) - info.sb_type = 1; - else if (rev >= 0x30 && rev <= 0x3b) - info.sb_type = 3; - } else { - info.smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD, - 0x780b, NULL); - if (!info.smbus_dev) { - ret = 0; - goto commit; - } - - rev = info.smbus_dev->revision; - if (rev >= 0x11 && rev <= 0x18) - info.sb_type = 2; + if (!amd_chipset_sb_type_init(&info)) { + ret = 0; + goto commit; } - if (info.sb_type == 0) { + /* Below chipset generations needn't enable AMD PLL quirk */ + if (info.sb_type.gen == AMD_CHIPSET_UNKNOWN || + info.sb_type.gen == AMD_CHIPSET_SB600 || + info.sb_type.gen == AMD_CHIPSET_YANGTZE || + (info.sb_type.gen == AMD_CHIPSET_SB700 && + info.sb_type.rev > 0x3b)) { if (info.smbus_dev) { pci_dev_put(info.smbus_dev); info.smbus_dev = NULL; @@ -197,6 +250,39 @@ commit: } EXPORT_SYMBOL_GPL(usb_amd_find_chipset_info); +int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *pdev) +{ + /* Make sure amd chipset type has already been initialized */ + usb_amd_find_chipset_info(); + if (amd_chipset.sb_type.gen != AMD_CHIPSET_YANGTZE) + return 0; + + dev_dbg(&pdev->dev, "QUIRK: Enable AMD remote wakeup fix\n"); + return 1; +} +EXPORT_SYMBOL_GPL(usb_hcd_amd_remote_wakeup_quirk); + +bool usb_amd_hang_symptom_quirk(void) +{ + u8 rev; + + usb_amd_find_chipset_info(); + rev = amd_chipset.sb_type.rev; + /* SB600 and old version of SB700 have hang symptom bug */ + return amd_chipset.sb_type.gen == AMD_CHIPSET_SB600 || + (amd_chipset.sb_type.gen == AMD_CHIPSET_SB700 && + rev >= 0x3a && rev <= 0x3b); +} +EXPORT_SYMBOL_GPL(usb_amd_hang_symptom_quirk); + +bool usb_amd_prefetch_quirk(void) +{ + usb_amd_find_chipset_info(); + /* SB800 needs pre-fetch fix */ + return amd_chipset.sb_type.gen == AMD_CHIPSET_SB800; +} +EXPORT_SYMBOL_GPL(usb_amd_prefetch_quirk); + /* * The hardware normally enables the A-link power management feature, which * lets the system lower the power consumption in idle states. @@ -229,7 +315,9 @@ static void usb_amd_quirk_pll(int disable) } } - if (amd_chipset.sb_type == 1 || amd_chipset.sb_type == 2) { + if (amd_chipset.sb_type.gen == AMD_CHIPSET_SB800 || + amd_chipset.sb_type.gen == AMD_CHIPSET_HUDSON2 || + amd_chipset.sb_type.gen == AMD_CHIPSET_BOLTON) { outb_p(AB_REG_BAR_LOW, 0xcd6); addr_low = inb_p(0xcd7); outb_p(AB_REG_BAR_HIGH, 0xcd6); @@ -240,7 +328,8 @@ static void usb_amd_quirk_pll(int disable) outl_p(0x40, AB_DATA(addr)); outl_p(0x34, AB_INDX(addr)); val = inl_p(AB_DATA(addr)); - } else if (amd_chipset.sb_type == 3) { + } else if (amd_chipset.sb_type.gen == AMD_CHIPSET_SB700 && + amd_chipset.sb_type.rev <= 0x3b) { pci_read_config_dword(amd_chipset.smbus_dev, AB_REG_BAR_SB700, &addr); outl(AX_INDXC, AB_INDX(addr)); @@ -353,7 +442,7 @@ void usb_amd_dev_put(void) amd_chipset.nb_dev = NULL; amd_chipset.smbus_dev = NULL; amd_chipset.nb_type = 0; - amd_chipset.sb_type = 0; + memset(&amd_chipset.sb_type, 0, sizeof(amd_chipset.sb_type)); amd_chipset.isoc_reqs = 0; amd_chipset.probe_result = 0; @@ -799,7 +888,7 @@ void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev) * switchable ports. */ pci_write_config_dword(xhci_pdev, USB_INTEL_USB3_PSSEN, - cpu_to_le32(ports_available)); + ports_available); pci_read_config_dword(xhci_pdev, USB_INTEL_USB3_PSSEN, &ports_available); @@ -821,7 +910,7 @@ void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev) * host. */ pci_write_config_dword(xhci_pdev, USB_INTEL_XUSB2PR, - cpu_to_le32(ports_available)); + ports_available); pci_read_config_dword(xhci_pdev, USB_INTEL_XUSB2PR, &ports_available); diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h index ed6700d00fe6..638e88f7a28b 100644 --- a/drivers/usb/host/pci-quirks.h +++ b/drivers/usb/host/pci-quirks.h @@ -5,6 +5,8 @@ void uhci_reset_hc(struct pci_dev *pdev, unsigned long base); int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base); int usb_amd_find_chipset_info(void); +bool usb_amd_hang_symptom_quirk(void); +bool usb_amd_prefetch_quirk(void); void usb_amd_dev_put(void); void usb_amd_quirk_pll_disable(void); void usb_amd_quirk_pll_enable(void); diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index 5477bf5df218..79620c39217e 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -1413,7 +1413,7 @@ static int sl811h_show(struct seq_file *s, void *unused) case SL11H_CTL1MASK_SE0: s = " se0/reset"; break; case SL11H_CTL1MASK_K: s = " k/resume"; break; default: s = "j"; break; - }; s; }), + } s; }), (t & SL11H_CTL1MASK_LSPD) ? " lowspeed" : "", (t & SL11H_CTL1MASK_SUSPEND) ? " suspend" : ""); @@ -1446,7 +1446,7 @@ static int sl811h_show(struct seq_file *s, void *unused) case USB_PID_SETUP: s = "setup"; break; case USB_PID_ACK: s = "status"; break; default: s = "?"; break; - }; s;}), + } s;}), ep->maxpacket, ep->nak_count, ep->error_count); list_for_each_entry (urb, &ep->hep->urb_list, urb_list) { diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c index 455737546525..8e239cdd95d5 100644 --- a/drivers/usb/host/uhci-debug.c +++ b/drivers/usb/host/uhci-debug.c @@ -310,14 +310,14 @@ static int uhci_show_status(struct uhci_hcd *uhci, char *buf, int len) unsigned short portsc1, portsc2; - usbcmd = uhci_readw(uhci, 0); - usbstat = uhci_readw(uhci, 2); - usbint = uhci_readw(uhci, 4); - usbfrnum = uhci_readw(uhci, 6); - flbaseadd = uhci_readl(uhci, 8); - sof = uhci_readb(uhci, 12); - portsc1 = uhci_readw(uhci, 16); - portsc2 = uhci_readw(uhci, 18); + usbcmd = uhci_readw(uhci, USBCMD); + usbstat = uhci_readw(uhci, USBSTS); + usbint = uhci_readw(uhci, USBINTR); + usbfrnum = uhci_readw(uhci, USBFRNUM); + flbaseadd = uhci_readl(uhci, USBFLBASEADD); + sof = uhci_readb(uhci, USBSOF); + portsc1 = uhci_readw(uhci, USBPORTSC1); + portsc2 = uhci_readw(uhci, USBPORTSC2); out += sprintf(out, " usbcmd = %04x %s%s%s%s%s%s%s%s\n", usbcmd, diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c index 9189bc984c98..93e17b12fb33 100644 --- a/drivers/usb/host/uhci-hub.c +++ b/drivers/usb/host/uhci-hub.c @@ -75,8 +75,6 @@ static inline int get_hub_status_data(struct uhci_hcd *uhci, char *buf) return !!*buf; } -#define OK(x) len = (x); break - #define CLR_RH_PORTSTAT(x) \ status = uhci_readw(uhci, port_addr); \ status &= ~(RWC_BITS|WZ_BITS); \ @@ -244,7 +242,7 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength) { struct uhci_hcd *uhci = hcd_to_uhci(hcd); - int status, lstatus, retval = 0, len = 0; + int status, lstatus, retval = 0; unsigned int port = wIndex - 1; unsigned long port_addr = USBPORTSC1 + 2 * port; u16 wPortChange, wPortStatus; @@ -258,7 +256,8 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, case GetHubStatus: *(__le32 *)buf = cpu_to_le32(0); - OK(4); /* hub power */ + retval = 4; /* hub power */ + break; case GetPortStatus: if (port >= uhci->rh_numports) goto err; @@ -311,13 +310,14 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, *(__le16 *)buf = cpu_to_le16(wPortStatus); *(__le16 *)(buf + 2) = cpu_to_le16(wPortChange); - OK(4); + retval = 4; + break; case SetHubFeature: /* We don't implement these */ case ClearHubFeature: switch (wValue) { case C_HUB_OVER_CURRENT: case C_HUB_LOCAL_POWER: - OK(0); + break; default: goto err; } @@ -329,7 +329,7 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, switch (wValue) { case USB_PORT_FEAT_SUSPEND: SET_RH_PORTSTAT(USBPORTSC_SUSP); - OK(0); + break; case USB_PORT_FEAT_RESET: SET_RH_PORTSTAT(USBPORTSC_PR); @@ -338,10 +338,10 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, /* USB v2.0 7.1.7.5 */ uhci->ports_timeout = jiffies + msecs_to_jiffies(50); - OK(0); + break; case USB_PORT_FEAT_POWER: /* UHCI has no power switching */ - OK(0); + break; default: goto err; } @@ -356,10 +356,10 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, /* Disable terminates Resume signalling */ uhci_finish_suspend(uhci, port, port_addr); - OK(0); + break; case USB_PORT_FEAT_C_ENABLE: CLR_RH_PORTSTAT(USBPORTSC_PEC); - OK(0); + break; case USB_PORT_FEAT_SUSPEND: if (!(uhci_readw(uhci, port_addr) & USBPORTSC_SUSP)) { @@ -382,32 +382,32 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, uhci->ports_timeout = jiffies + msecs_to_jiffies(20); } - OK(0); + break; case USB_PORT_FEAT_C_SUSPEND: clear_bit(port, &uhci->port_c_suspend); - OK(0); + break; case USB_PORT_FEAT_POWER: /* UHCI has no power switching */ goto err; case USB_PORT_FEAT_C_CONNECTION: CLR_RH_PORTSTAT(USBPORTSC_CSC); - OK(0); + break; case USB_PORT_FEAT_C_OVER_CURRENT: CLR_RH_PORTSTAT(USBPORTSC_OCC); - OK(0); + break; case USB_PORT_FEAT_C_RESET: /* this driver won't report these */ - OK(0); + break; default: goto err; } break; case GetHubDescriptor: - len = min_t(unsigned int, sizeof(root_hub_hub_des), wLength); - memcpy(buf, root_hub_hub_des, len); - if (len > 2) + retval = min_t(unsigned int, sizeof(root_hub_hub_des), wLength); + memcpy(buf, root_hub_hub_des, retval); + if (retval > 2) buf[2] = uhci->rh_numports; - OK(len); + break; default: err: retval = -EPIPE; diff --git a/drivers/usb/host/uhci-pci.c b/drivers/usb/host/uhci-pci.c index 0f228c46eeda..4cd79888804b 100644 --- a/drivers/usb/host/uhci-pci.c +++ b/drivers/usb/host/uhci-pci.c @@ -162,6 +162,8 @@ static void uhci_shutdown(struct pci_dev *pdev) #ifdef CONFIG_PM +static int uhci_pci_resume(struct usb_hcd *hcd, bool hibernated); + static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup) { struct uhci_hcd *uhci = hcd_to_uhci(hcd); @@ -174,12 +176,6 @@ static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup) if (!HCD_HW_ACCESSIBLE(hcd) || uhci->dead) goto done_okay; /* Already suspended or dead */ - if (uhci->rh_state > UHCI_RH_SUSPENDED) { - dev_warn(uhci_dev(uhci), "Root hub isn't suspended!\n"); - rc = -EBUSY; - goto done; - }; - /* All PCI host controllers are required to disable IRQ generation * at the source, so we must turn off PIRQ. */ @@ -195,8 +191,15 @@ static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup) done_okay: clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); -done: spin_unlock_irq(&uhci->lock); + + synchronize_irq(hcd->irq); + + /* Check for race with a wakeup request */ + if (do_wakeup && HCD_WAKEUP_PENDING(hcd)) { + uhci_pci_resume(hcd, false); + rc = -EBUSY; + } return rc; } @@ -299,3 +302,5 @@ static struct pci_driver uhci_pci_driver = { }, #endif }; + +MODULE_SOFTDEP("pre: ehci_pci"); diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c index d033a0ec7f0d..ded842bc6578 100644 --- a/drivers/usb/host/uhci-platform.c +++ b/drivers/usb/host/uhci-platform.c @@ -105,8 +105,7 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev) uhci->regs = hcd->regs; - ret = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_DISABLED | - IRQF_SHARED); + ret = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED); if (ret) goto err_uhci; diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c index ecc88db804e0..1b0888f8da9a 100644 --- a/drivers/usb/host/whci/hcd.c +++ b/drivers/usb/host/whci/hcd.c @@ -134,7 +134,7 @@ static int whc_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb, default: ret = asl_urb_enqueue(whc, urb, mem_flags); break; - }; + } return ret; } @@ -160,7 +160,7 @@ static int whc_urb_dequeue(struct usb_hcd *usb_hcd, struct urb *urb, int status) default: ret = asl_urb_dequeue(whc, urb, status); break; - }; + } return ret; } diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 773a6b28c4f1..805f2348eeba 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -296,7 +296,7 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend) /* Wait for last stop endpoint command to finish */ timeleft = wait_for_completion_interruptible_timeout( cmd->completion, - USB_CTRL_SET_TIMEOUT); + XHCI_CMD_DEFAULT_TIMEOUT); if (timeleft <= 0) { xhci_warn(xhci, "%s while waiting for stop endpoint command\n", timeleft == 0 ? "Timeout" : "Signal"); @@ -524,7 +524,8 @@ static void xhci_hub_report_usb3_link_state(u32 *status, u32 status_reg) * the compliance mode timer is deleted. A port won't enter * compliance mode if it has previously entered U0. */ -void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status, u16 wIndex) +static void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status, + u16 wIndex) { u32 all_ports_seen_u0 = ((1 << xhci->num_usb3_ports)-1); bool port_in_u0 = ((status & PORT_PLS_MASK) == XDEV_U0); @@ -1157,18 +1158,6 @@ int xhci_bus_suspend(struct usb_hcd *hcd) t1 = xhci_port_state_to_neutral(t1); if (t1 != t2) xhci_writel(xhci, t2, port_array[port_index]); - - if (hcd->speed != HCD_USB3) { - /* enable remote wake up for USB 2.0 */ - __le32 __iomem *addr; - u32 tmp; - - /* Get the port power control register address. */ - addr = port_array[port_index] + PORTPMSC; - tmp = xhci_readl(xhci, addr); - tmp |= PORT_RWE; - xhci_writel(xhci, tmp, addr); - } } hcd->state = HC_STATE_SUSPENDED; bus_state->next_statechange = jiffies + msecs_to_jiffies(10); @@ -1247,20 +1236,6 @@ int xhci_bus_resume(struct usb_hcd *hcd) xhci_ring_device(xhci, slot_id); } else xhci_writel(xhci, temp, port_array[port_index]); - - if (hcd->speed != HCD_USB3) { - /* disable remote wake up for USB 2.0 */ - __le32 __iomem *addr; - u32 tmp; - - /* Add one to the port status register address to get - * the port power control register address. - */ - addr = port_array[port_index] + PORTPMSC; - tmp = xhci_readl(xhci, addr); - tmp &= ~PORT_RWE; - xhci_writel(xhci, tmp, addr); - } } (void) xhci_readl(xhci, &xhci->op_regs->command); diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 83bcd13622c3..49b8bd063fab 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1693,9 +1693,7 @@ void xhci_free_command(struct xhci_hcd *xhci, void xhci_mem_cleanup(struct xhci_hcd *xhci) { struct pci_dev *pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller); - struct dev_info *dev_info, *next; struct xhci_cd *cur_cd, *next_cd; - unsigned long flags; int size; int i, j, num_ports; @@ -1756,13 +1754,6 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) scratchpad_free(xhci); - spin_lock_irqsave(&xhci->lock, flags); - list_for_each_entry_safe(dev_info, next, &xhci->lpm_failed_devs, list) { - list_del(&dev_info->list); - kfree(dev_info); - } - spin_unlock_irqrestore(&xhci->lock, flags); - if (!xhci->rh_bw) goto no_bw; @@ -2231,7 +2222,6 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) u32 page_size, temp; int i; - INIT_LIST_HEAD(&xhci->lpm_failed_devs); INIT_LIST_HEAD(&xhci->cancel_cmd_list); page_size = xhci_readl(xhci, &xhci->op_regs->page_size); diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 236c3aabe940..b8dffd59eb25 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -35,6 +35,9 @@ #define PCI_VENDOR_ID_ETRON 0x1b6f #define PCI_DEVICE_ID_ASROCK_P67 0x7023 +#define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI 0x8c31 +#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 + static const char hcd_name[] = "xhci_hcd"; /* called after powerup, by probe or system-pm "wakeup" */ @@ -69,6 +72,14 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) "QUIRK: Fresco Logic xHC needs configure" " endpoint cmd after reset endpoint"); } + if (pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_PDK && + pdev->revision == 0x4) { + xhci->quirks |= XHCI_SLOW_SUSPEND; + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "QUIRK: Fresco Logic xHC revision %u" + "must be suspended extra slowly", + pdev->revision); + } /* Fresco Logic confirms: all revisions of this chip do not * support MSI, even though some of them claim to in their PCI * capabilities. @@ -110,6 +121,15 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) xhci->quirks |= XHCI_SPURIOUS_REBOOT; xhci->quirks |= XHCI_AVOID_BEI; } + if (pdev->vendor == PCI_VENDOR_ID_INTEL && + (pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI || + pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI)) { + /* Workaround for occasional spurious wakeups from S5 (or + * any other sleep) on Haswell machines with LPT and LPT-LP + * with the new Intel BIOS + */ + xhci->quirks |= XHCI_SPURIOUS_WAKEUP; + } if (pdev->vendor == PCI_VENDOR_ID_ETRON && pdev->device == PCI_DEVICE_ID_ASROCK_P67) { xhci->quirks |= XHCI_RESET_ON_RESUME; @@ -217,6 +237,11 @@ static void xhci_pci_remove(struct pci_dev *dev) usb_put_hcd(xhci->shared_hcd); } usb_hcd_pci_remove(dev); + + /* Workaround for spurious wakeups at shutdown with HSW */ + if (xhci->quirks & XHCI_SPURIOUS_WAKEUP) + pci_set_power_state(dev, PCI_D3hot); + kfree(xhci); } diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 6bfbd80ec2b9..1e2f3f495843 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -178,7 +178,7 @@ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring) if (ring->type == TYPE_EVENT && last_trb_on_last_seg(xhci, ring, ring->deq_seg, ring->dequeue)) { - ring->cycle_state = (ring->cycle_state ? 0 : 1); + ring->cycle_state ^= 1; } ring->deq_seg = ring->deq_seg->next; ring->dequeue = ring->deq_seg->trbs; @@ -726,7 +726,7 @@ static void xhci_stop_watchdog_timer_in_irq(struct xhci_hcd *xhci, /* Must be called with xhci->lock held in interrupt context */ static void xhci_giveback_urb_in_irq(struct xhci_hcd *xhci, - struct xhci_td *cur_td, int status, char *adjective) + struct xhci_td *cur_td, int status) { struct usb_hcd *hcd; struct urb *urb; @@ -765,10 +765,9 @@ static void xhci_giveback_urb_in_irq(struct xhci_hcd *xhci, * 2. Otherwise, we turn all the TRBs in the TD into No-op TRBs (with the chain * bit cleared) so that the HW will skip over them. */ -static void handle_stopped_endpoint(struct xhci_hcd *xhci, +static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci, int slot_id, union xhci_trb *trb, struct xhci_event_cmd *event) { - unsigned int slot_id; unsigned int ep_index; struct xhci_virt_device *virt_dev; struct xhci_ring *ep_ring; @@ -779,10 +778,7 @@ static void handle_stopped_endpoint(struct xhci_hcd *xhci, struct xhci_dequeue_state deq_state; - if (unlikely(TRB_TO_SUSPEND_PORT( - le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])))) { - slot_id = TRB_TO_SLOT_ID( - le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])); + if (unlikely(TRB_TO_SUSPEND_PORT(le32_to_cpu(trb->generic.field[3])))) { virt_dev = xhci->devs[slot_id]; if (virt_dev) handle_cmd_in_cmd_wait_list(xhci, virt_dev, @@ -795,7 +791,6 @@ static void handle_stopped_endpoint(struct xhci_hcd *xhci, } memset(&deq_state, 0, sizeof(deq_state)); - slot_id = TRB_TO_SLOT_ID(le32_to_cpu(trb->generic.field[3])); ep_index = TRB_TO_EP_INDEX(le32_to_cpu(trb->generic.field[3])); ep = &xhci->devs[slot_id]->eps[ep_index]; @@ -891,7 +886,7 @@ remove_finished_td: /* Doesn't matter what we pass for status, since the core will * just overwrite it (because the URB has been unlinked). */ - xhci_giveback_urb_in_irq(xhci, cur_td, 0, "cancelled"); + xhci_giveback_urb_in_irq(xhci, cur_td, 0); /* Stop processing the cancelled list if the watchdog timer is * running. @@ -1001,7 +996,7 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg) if (!list_empty(&cur_td->cancelled_td_list)) list_del_init(&cur_td->cancelled_td_list); xhci_giveback_urb_in_irq(xhci, cur_td, - -ESHUTDOWN, "killed"); + -ESHUTDOWN); } while (!list_empty(&temp_ep->cancelled_td_list)) { cur_td = list_first_entry( @@ -1010,7 +1005,7 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg) cancelled_td_list); list_del_init(&cur_td->cancelled_td_list); xhci_giveback_urb_in_irq(xhci, cur_td, - -ESHUTDOWN, "killed"); + -ESHUTDOWN); } } } @@ -1077,11 +1072,9 @@ static void update_ring_for_set_deq_completion(struct xhci_hcd *xhci, * endpoint doorbell to restart the ring, but only if there aren't more * cancellations pending. */ -static void handle_set_deq_completion(struct xhci_hcd *xhci, - struct xhci_event_cmd *event, - union xhci_trb *trb) +static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id, + union xhci_trb *trb, u32 cmd_comp_code) { - unsigned int slot_id; unsigned int ep_index; unsigned int stream_id; struct xhci_ring *ep_ring; @@ -1089,7 +1082,6 @@ static void handle_set_deq_completion(struct xhci_hcd *xhci, struct xhci_ep_ctx *ep_ctx; struct xhci_slot_ctx *slot_ctx; - slot_id = TRB_TO_SLOT_ID(le32_to_cpu(trb->generic.field[3])); ep_index = TRB_TO_EP_INDEX(le32_to_cpu(trb->generic.field[3])); stream_id = TRB_TO_STREAM_ID(le32_to_cpu(trb->generic.field[2])); dev = xhci->devs[slot_id]; @@ -1107,11 +1099,11 @@ static void handle_set_deq_completion(struct xhci_hcd *xhci, ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index); slot_ctx = xhci_get_slot_ctx(xhci, dev->out_ctx); - if (GET_COMP_CODE(le32_to_cpu(event->status)) != COMP_SUCCESS) { + if (cmd_comp_code != COMP_SUCCESS) { unsigned int ep_state; unsigned int slot_state; - switch (GET_COMP_CODE(le32_to_cpu(event->status))) { + switch (cmd_comp_code) { case COMP_TRB_ERR: xhci_warn(xhci, "WARN Set TR Deq Ptr cmd invalid because " "of stream ID configuration\n"); @@ -1134,7 +1126,7 @@ static void handle_set_deq_completion(struct xhci_hcd *xhci, default: xhci_warn(xhci, "WARN Set TR Deq Ptr cmd with unknown " "completion code of %u.\n", - GET_COMP_CODE(le32_to_cpu(event->status))); + cmd_comp_code); break; } /* OK what do we do now? The endpoint state is hosed, and we @@ -1171,21 +1163,17 @@ static void handle_set_deq_completion(struct xhci_hcd *xhci, ring_doorbell_for_active_rings(xhci, slot_id, ep_index); } -static void handle_reset_ep_completion(struct xhci_hcd *xhci, - struct xhci_event_cmd *event, - union xhci_trb *trb) +static void xhci_handle_cmd_reset_ep(struct xhci_hcd *xhci, int slot_id, + union xhci_trb *trb, u32 cmd_comp_code) { - int slot_id; unsigned int ep_index; - slot_id = TRB_TO_SLOT_ID(le32_to_cpu(trb->generic.field[3])); ep_index = TRB_TO_EP_INDEX(le32_to_cpu(trb->generic.field[3])); /* This command will only fail if the endpoint wasn't halted, * but we don't care. */ xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep, - "Ignoring reset ep completion code of %u", - GET_COMP_CODE(le32_to_cpu(event->status))); + "Ignoring reset ep completion code of %u", cmd_comp_code); /* HW with the reset endpoint quirk needs to have a configure endpoint * command complete before the endpoint can be used. Queue that here @@ -1386,21 +1374,149 @@ static int handle_stopped_cmd_ring(struct xhci_hcd *xhci, return cur_trb_is_good; } +static void xhci_handle_cmd_enable_slot(struct xhci_hcd *xhci, int slot_id, + u32 cmd_comp_code) +{ + if (cmd_comp_code == COMP_SUCCESS) + xhci->slot_id = slot_id; + else + xhci->slot_id = 0; + complete(&xhci->addr_dev); +} + +static void xhci_handle_cmd_disable_slot(struct xhci_hcd *xhci, int slot_id) +{ + struct xhci_virt_device *virt_dev; + + virt_dev = xhci->devs[slot_id]; + if (!virt_dev) + return; + if (xhci->quirks & XHCI_EP_LIMIT_QUIRK) + /* Delete default control endpoint resources */ + xhci_free_device_endpoint_resources(xhci, virt_dev, true); + xhci_free_virt_device(xhci, slot_id); +} + +static void xhci_handle_cmd_config_ep(struct xhci_hcd *xhci, int slot_id, + struct xhci_event_cmd *event, u32 cmd_comp_code) +{ + struct xhci_virt_device *virt_dev; + struct xhci_input_control_ctx *ctrl_ctx; + unsigned int ep_index; + unsigned int ep_state; + u32 add_flags, drop_flags; + + virt_dev = xhci->devs[slot_id]; + if (handle_cmd_in_cmd_wait_list(xhci, virt_dev, event)) + return; + /* + * Configure endpoint commands can come from the USB core + * configuration or alt setting changes, or because the HW + * needed an extra configure endpoint command after a reset + * endpoint command or streams were being configured. + * If the command was for a halted endpoint, the xHCI driver + * is not waiting on the configure endpoint command. + */ + ctrl_ctx = xhci_get_input_control_ctx(xhci, virt_dev->in_ctx); + if (!ctrl_ctx) { + xhci_warn(xhci, "Could not get input context, bad type.\n"); + return; + } + + add_flags = le32_to_cpu(ctrl_ctx->add_flags); + drop_flags = le32_to_cpu(ctrl_ctx->drop_flags); + /* Input ctx add_flags are the endpoint index plus one */ + ep_index = xhci_last_valid_endpoint(add_flags) - 1; + + /* A usb_set_interface() call directly after clearing a halted + * condition may race on this quirky hardware. Not worth + * worrying about, since this is prototype hardware. Not sure + * if this will work for streams, but streams support was + * untested on this prototype. + */ + if (xhci->quirks & XHCI_RESET_EP_QUIRK && + ep_index != (unsigned int) -1 && + add_flags - SLOT_FLAG == drop_flags) { + ep_state = virt_dev->eps[ep_index].ep_state; + if (!(ep_state & EP_HALTED)) + goto bandwidth_change; + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "Completed config ep cmd - " + "last ep index = %d, state = %d", + ep_index, ep_state); + /* Clear internal halted state and restart ring(s) */ + virt_dev->eps[ep_index].ep_state &= ~EP_HALTED; + ring_doorbell_for_active_rings(xhci, slot_id, ep_index); + return; + } +bandwidth_change: + xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, + "Completed config ep cmd"); + virt_dev->cmd_status = cmd_comp_code; + complete(&virt_dev->cmd_completion); + return; +} + +static void xhci_handle_cmd_eval_ctx(struct xhci_hcd *xhci, int slot_id, + struct xhci_event_cmd *event, u32 cmd_comp_code) +{ + struct xhci_virt_device *virt_dev; + + virt_dev = xhci->devs[slot_id]; + if (handle_cmd_in_cmd_wait_list(xhci, virt_dev, event)) + return; + virt_dev->cmd_status = cmd_comp_code; + complete(&virt_dev->cmd_completion); +} + +static void xhci_handle_cmd_addr_dev(struct xhci_hcd *xhci, int slot_id, + u32 cmd_comp_code) +{ + xhci->devs[slot_id]->cmd_status = cmd_comp_code; + complete(&xhci->addr_dev); +} + +static void xhci_handle_cmd_reset_dev(struct xhci_hcd *xhci, int slot_id, + struct xhci_event_cmd *event) +{ + struct xhci_virt_device *virt_dev; + + xhci_dbg(xhci, "Completed reset device command.\n"); + virt_dev = xhci->devs[slot_id]; + if (virt_dev) + handle_cmd_in_cmd_wait_list(xhci, virt_dev, event); + else + xhci_warn(xhci, "Reset device command completion " + "for disabled slot %u\n", slot_id); +} + +static void xhci_handle_cmd_nec_get_fw(struct xhci_hcd *xhci, + struct xhci_event_cmd *event) +{ + if (!(xhci->quirks & XHCI_NEC_HOST)) { + xhci->error_bitmask |= 1 << 6; + return; + } + xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, + "NEC firmware version %2x.%02x", + NEC_FW_MAJOR(le32_to_cpu(event->status)), + NEC_FW_MINOR(le32_to_cpu(event->status))); +} + static void handle_cmd_completion(struct xhci_hcd *xhci, struct xhci_event_cmd *event) { int slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags)); u64 cmd_dma; dma_addr_t cmd_dequeue_dma; - struct xhci_input_control_ctx *ctrl_ctx; - struct xhci_virt_device *virt_dev; - unsigned int ep_index; - struct xhci_ring *ep_ring; - unsigned int ep_state; + u32 cmd_comp_code; + union xhci_trb *cmd_trb; + u32 cmd_type; cmd_dma = le64_to_cpu(event->cmd_trb); + cmd_trb = xhci->cmd_ring->dequeue; cmd_dequeue_dma = xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg, - xhci->cmd_ring->dequeue); + cmd_trb); /* Is the command ring deq ptr out of sync with the deq seg ptr? */ if (cmd_dequeue_dma == 0) { xhci->error_bitmask |= 1 << 4; @@ -1412,19 +1528,17 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, return; } - trace_xhci_cmd_completion(&xhci->cmd_ring->dequeue->generic, - (struct xhci_generic_trb *) event); + trace_xhci_cmd_completion(cmd_trb, (struct xhci_generic_trb *) event); - if ((GET_COMP_CODE(le32_to_cpu(event->status)) == COMP_CMD_ABORT) || - (GET_COMP_CODE(le32_to_cpu(event->status)) == COMP_CMD_STOP)) { + cmd_comp_code = GET_COMP_CODE(le32_to_cpu(event->status)); + if (cmd_comp_code == COMP_CMD_ABORT || cmd_comp_code == COMP_CMD_STOP) { /* If the return value is 0, we think the trb pointed by * command ring dequeue pointer is a good trb. The good * trb means we don't want to cancel the trb, but it have * been stopped by host. So we should handle it normally. * Otherwise, driver should invoke inc_deq() and return. */ - if (handle_stopped_cmd_ring(xhci, - GET_COMP_CODE(le32_to_cpu(event->status)))) { + if (handle_stopped_cmd_ring(xhci, cmd_comp_code)) { inc_deq(xhci, xhci->cmd_ring); return; } @@ -1436,117 +1550,47 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, return; } - switch (le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3]) - & TRB_TYPE_BITMASK) { - case TRB_TYPE(TRB_ENABLE_SLOT): - if (GET_COMP_CODE(le32_to_cpu(event->status)) == COMP_SUCCESS) - xhci->slot_id = slot_id; - else - xhci->slot_id = 0; - complete(&xhci->addr_dev); + cmd_type = TRB_FIELD_TO_TYPE(le32_to_cpu(cmd_trb->generic.field[3])); + switch (cmd_type) { + case TRB_ENABLE_SLOT: + xhci_handle_cmd_enable_slot(xhci, slot_id, cmd_comp_code); break; - case TRB_TYPE(TRB_DISABLE_SLOT): - if (xhci->devs[slot_id]) { - if (xhci->quirks & XHCI_EP_LIMIT_QUIRK) - /* Delete default control endpoint resources */ - xhci_free_device_endpoint_resources(xhci, - xhci->devs[slot_id], true); - xhci_free_virt_device(xhci, slot_id); - } + case TRB_DISABLE_SLOT: + xhci_handle_cmd_disable_slot(xhci, slot_id); break; - case TRB_TYPE(TRB_CONFIG_EP): - virt_dev = xhci->devs[slot_id]; - if (handle_cmd_in_cmd_wait_list(xhci, virt_dev, event)) - break; - /* - * Configure endpoint commands can come from the USB core - * configuration or alt setting changes, or because the HW - * needed an extra configure endpoint command after a reset - * endpoint command or streams were being configured. - * If the command was for a halted endpoint, the xHCI driver - * is not waiting on the configure endpoint command. - */ - ctrl_ctx = xhci_get_input_control_ctx(xhci, - virt_dev->in_ctx); - if (!ctrl_ctx) { - xhci_warn(xhci, "Could not get input context, bad type.\n"); - break; - } - /* Input ctx add_flags are the endpoint index plus one */ - ep_index = xhci_last_valid_endpoint(le32_to_cpu(ctrl_ctx->add_flags)) - 1; - /* A usb_set_interface() call directly after clearing a halted - * condition may race on this quirky hardware. Not worth - * worrying about, since this is prototype hardware. Not sure - * if this will work for streams, but streams support was - * untested on this prototype. - */ - if (xhci->quirks & XHCI_RESET_EP_QUIRK && - ep_index != (unsigned int) -1 && - le32_to_cpu(ctrl_ctx->add_flags) - SLOT_FLAG == - le32_to_cpu(ctrl_ctx->drop_flags)) { - ep_ring = xhci->devs[slot_id]->eps[ep_index].ring; - ep_state = xhci->devs[slot_id]->eps[ep_index].ep_state; - if (!(ep_state & EP_HALTED)) - goto bandwidth_change; - xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, - "Completed config ep cmd - " - "last ep index = %d, state = %d", - ep_index, ep_state); - /* Clear internal halted state and restart ring(s) */ - xhci->devs[slot_id]->eps[ep_index].ep_state &= - ~EP_HALTED; - ring_doorbell_for_active_rings(xhci, slot_id, ep_index); - break; - } -bandwidth_change: - xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, - "Completed config ep cmd"); - xhci->devs[slot_id]->cmd_status = - GET_COMP_CODE(le32_to_cpu(event->status)); - complete(&xhci->devs[slot_id]->cmd_completion); + case TRB_CONFIG_EP: + xhci_handle_cmd_config_ep(xhci, slot_id, event, cmd_comp_code); break; - case TRB_TYPE(TRB_EVAL_CONTEXT): - virt_dev = xhci->devs[slot_id]; - if (handle_cmd_in_cmd_wait_list(xhci, virt_dev, event)) - break; - xhci->devs[slot_id]->cmd_status = GET_COMP_CODE(le32_to_cpu(event->status)); - complete(&xhci->devs[slot_id]->cmd_completion); + case TRB_EVAL_CONTEXT: + xhci_handle_cmd_eval_ctx(xhci, slot_id, event, cmd_comp_code); break; - case TRB_TYPE(TRB_ADDR_DEV): - xhci->devs[slot_id]->cmd_status = GET_COMP_CODE(le32_to_cpu(event->status)); - complete(&xhci->addr_dev); + case TRB_ADDR_DEV: + xhci_handle_cmd_addr_dev(xhci, slot_id, cmd_comp_code); break; - case TRB_TYPE(TRB_STOP_RING): - handle_stopped_endpoint(xhci, xhci->cmd_ring->dequeue, event); + case TRB_STOP_RING: + WARN_ON(slot_id != TRB_TO_SLOT_ID( + le32_to_cpu(cmd_trb->generic.field[3]))); + xhci_handle_cmd_stop_ep(xhci, slot_id, cmd_trb, event); break; - case TRB_TYPE(TRB_SET_DEQ): - handle_set_deq_completion(xhci, event, xhci->cmd_ring->dequeue); + case TRB_SET_DEQ: + WARN_ON(slot_id != TRB_TO_SLOT_ID( + le32_to_cpu(cmd_trb->generic.field[3]))); + xhci_handle_cmd_set_deq(xhci, slot_id, cmd_trb, cmd_comp_code); break; - case TRB_TYPE(TRB_CMD_NOOP): + case TRB_CMD_NOOP: break; - case TRB_TYPE(TRB_RESET_EP): - handle_reset_ep_completion(xhci, event, xhci->cmd_ring->dequeue); + case TRB_RESET_EP: + WARN_ON(slot_id != TRB_TO_SLOT_ID( + le32_to_cpu(cmd_trb->generic.field[3]))); + xhci_handle_cmd_reset_ep(xhci, slot_id, cmd_trb, cmd_comp_code); break; - case TRB_TYPE(TRB_RESET_DEV): - xhci_dbg(xhci, "Completed reset device command.\n"); - slot_id = TRB_TO_SLOT_ID( - le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])); - virt_dev = xhci->devs[slot_id]; - if (virt_dev) - handle_cmd_in_cmd_wait_list(xhci, virt_dev, event); - else - xhci_warn(xhci, "Reset device command completion " - "for disabled slot %u\n", slot_id); + case TRB_RESET_DEV: + WARN_ON(slot_id != TRB_TO_SLOT_ID( + le32_to_cpu(cmd_trb->generic.field[3]))); + xhci_handle_cmd_reset_dev(xhci, slot_id, event); break; - case TRB_TYPE(TRB_NEC_GET_FW): - if (!(xhci->quirks & XHCI_NEC_HOST)) { - xhci->error_bitmask |= 1 << 6; - break; - } - xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, - "NEC firmware version %2x.%02x", - NEC_FW_MAJOR(le32_to_cpu(event->status)), - NEC_FW_MINOR(le32_to_cpu(event->status))); + case TRB_NEC_GET_FW: + xhci_handle_cmd_nec_get_fw(xhci, event); break; default: /* Skip over unknown commands on the event ring */ diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 1e36dbb48366..4265b48856f6 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -730,6 +730,9 @@ void xhci_shutdown(struct usb_hcd *hcd) spin_lock_irq(&xhci->lock); xhci_halt(xhci); + /* Workaround for spurious wakeups at shutdown with HSW */ + if (xhci->quirks & XHCI_SPURIOUS_WAKEUP) + xhci_reset(xhci); spin_unlock_irq(&xhci->lock); xhci_cleanup_msix(xhci); @@ -737,6 +740,10 @@ void xhci_shutdown(struct usb_hcd *hcd) xhci_dbg_trace(xhci, trace_xhci_dbg_init, "xhci_shutdown completed - status = %x", xhci_readl(xhci, &xhci->op_regs->status)); + + /* Yet another workaround for spurious wakeups at shutdown with HSW */ + if (xhci->quirks & XHCI_SPURIOUS_WAKEUP) + pci_set_power_state(to_pci_dev(hcd->self.controller), PCI_D3hot); } #ifdef CONFIG_PM @@ -839,6 +846,7 @@ static void xhci_clear_command_ring(struct xhci_hcd *xhci) int xhci_suspend(struct xhci_hcd *xhci) { int rc = 0; + unsigned int delay = XHCI_MAX_HALT_USEC; struct usb_hcd *hcd = xhci_to_hcd(xhci); u32 command; @@ -861,8 +869,12 @@ int xhci_suspend(struct xhci_hcd *xhci) command = xhci_readl(xhci, &xhci->op_regs->command); command &= ~CMD_RUN; xhci_writel(xhci, command, &xhci->op_regs->command); + + /* Some chips from Fresco Logic need an extraordinary delay */ + delay *= (xhci->quirks & XHCI_SLOW_SUSPEND) ? 10 : 1; + if (xhci_handshake(xhci, &xhci->op_regs->status, - STS_HALT, STS_HALT, XHCI_MAX_HALT_USEC)) { + STS_HALT, STS_HALT, delay)) { xhci_warn(xhci, "WARN: xHC CMD_RUN timeout\n"); spin_unlock_irq(&xhci->lock); return -ETIMEDOUT; @@ -3447,7 +3459,7 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev) /* Wait for the Reset Device command to finish */ timeleft = wait_for_completion_interruptible_timeout( reset_device_cmd->completion, - USB_CTRL_SET_TIMEOUT); + XHCI_CMD_DEFAULT_TIMEOUT); if (timeleft <= 0) { xhci_warn(xhci, "%s while waiting for reset device command\n", timeleft == 0 ? "Timeout" : "Signal"); @@ -3571,11 +3583,6 @@ void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) del_timer_sync(&virt_dev->eps[i].stop_cmd_timer); } - if (udev->usb2_hw_lpm_enabled) { - xhci_set_usb2_hardware_lpm(hcd, udev, 0); - udev->usb2_hw_lpm_enabled = 0; - } - spin_lock_irqsave(&xhci->lock, flags); /* Don't disable the slot if the host controller is dead. */ state = xhci_readl(xhci, &xhci->op_regs->status); @@ -3709,9 +3716,6 @@ disable_slot: * the device). * We should be protected by the usb_address0_mutex in khubd's hub_port_init, so * we should only issue and wait on one address command at the same time. - * - * We add one to the device address issued by the hardware because the USB core - * uses address 1 for the root hubs (even though they're not really devices). */ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) { @@ -3856,16 +3860,13 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev) slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx); trace_xhci_address_ctx(xhci, virt_dev->out_ctx, slot_ctx->dev_info >> 27); - /* Use kernel assigned address for devices; store xHC assigned - * address locally. */ - virt_dev->address = (le32_to_cpu(slot_ctx->dev_state) & DEV_ADDR_MASK) - + 1; /* Zero the input context control for later use */ ctrl_ctx->add_flags = 0; ctrl_ctx->drop_flags = 0; xhci_dbg_trace(xhci, trace_xhci_dbg_address, - "Internal device address = %d", virt_dev->address); + "Internal device address = %d", + le32_to_cpu(slot_ctx->dev_state) & DEV_ADDR_MASK); return 0; } @@ -4013,133 +4014,6 @@ static int xhci_calculate_usb2_hw_lpm_params(struct usb_device *udev) return PORT_BESLD(besld) | PORT_L1_TIMEOUT(l1) | PORT_HIRDM(hirdm); } -static int xhci_usb2_software_lpm_test(struct usb_hcd *hcd, - struct usb_device *udev) -{ - struct xhci_hcd *xhci = hcd_to_xhci(hcd); - struct dev_info *dev_info; - __le32 __iomem **port_array; - __le32 __iomem *addr, *pm_addr; - u32 temp, dev_id; - unsigned int port_num; - unsigned long flags; - int hird; - int ret; - - if (hcd->speed == HCD_USB3 || !xhci->sw_lpm_support || - !udev->lpm_capable) - return -EINVAL; - - /* we only support lpm for non-hub device connected to root hub yet */ - if (!udev->parent || udev->parent->parent || - udev->descriptor.bDeviceClass == USB_CLASS_HUB) - return -EINVAL; - - spin_lock_irqsave(&xhci->lock, flags); - - /* Look for devices in lpm_failed_devs list */ - dev_id = le16_to_cpu(udev->descriptor.idVendor) << 16 | - le16_to_cpu(udev->descriptor.idProduct); - list_for_each_entry(dev_info, &xhci->lpm_failed_devs, list) { - if (dev_info->dev_id == dev_id) { - ret = -EINVAL; - goto finish; - } - } - - port_array = xhci->usb2_ports; - port_num = udev->portnum - 1; - - if (port_num > HCS_MAX_PORTS(xhci->hcs_params1)) { - xhci_dbg(xhci, "invalid port number %d\n", udev->portnum); - ret = -EINVAL; - goto finish; - } - - /* - * Test USB 2.0 software LPM. - * FIXME: some xHCI 1.0 hosts may implement a new register to set up - * hardware-controlled USB 2.0 LPM. See section 5.4.11 and 4.23.5.1.1.1 - * in the June 2011 errata release. - */ - xhci_dbg(xhci, "test port %d software LPM\n", port_num); - /* - * Set L1 Device Slot and HIRD/BESL. - * Check device's USB 2.0 extension descriptor to determine whether - * HIRD or BESL shoule be used. See USB2.0 LPM errata. - */ - pm_addr = port_array[port_num] + PORTPMSC; - hird = xhci_calculate_hird_besl(xhci, udev); - temp = PORT_L1DS(udev->slot_id) | PORT_HIRD(hird); - xhci_writel(xhci, temp, pm_addr); - - /* Set port link state to U2(L1) */ - addr = port_array[port_num]; - xhci_set_link_state(xhci, port_array, port_num, XDEV_U2); - - /* wait for ACK */ - spin_unlock_irqrestore(&xhci->lock, flags); - msleep(10); - spin_lock_irqsave(&xhci->lock, flags); - - /* Check L1 Status */ - ret = xhci_handshake(xhci, pm_addr, - PORT_L1S_MASK, PORT_L1S_SUCCESS, 125); - if (ret != -ETIMEDOUT) { - /* enter L1 successfully */ - temp = xhci_readl(xhci, addr); - xhci_dbg(xhci, "port %d entered L1 state, port status 0x%x\n", - port_num, temp); - ret = 0; - } else { - temp = xhci_readl(xhci, pm_addr); - xhci_dbg(xhci, "port %d software lpm failed, L1 status %d\n", - port_num, temp & PORT_L1S_MASK); - ret = -EINVAL; - } - - /* Resume the port */ - xhci_set_link_state(xhci, port_array, port_num, XDEV_U0); - - spin_unlock_irqrestore(&xhci->lock, flags); - msleep(10); - spin_lock_irqsave(&xhci->lock, flags); - - /* Clear PLC */ - xhci_test_and_clear_bit(xhci, port_array, port_num, PORT_PLC); - - /* Check PORTSC to make sure the device is in the right state */ - if (!ret) { - temp = xhci_readl(xhci, addr); - xhci_dbg(xhci, "resumed port %d status 0x%x\n", port_num, temp); - if (!(temp & PORT_CONNECT) || !(temp & PORT_PE) || - (temp & PORT_PLS_MASK) != XDEV_U0) { - xhci_dbg(xhci, "port L1 resume fail\n"); - ret = -EINVAL; - } - } - - if (ret) { - /* Insert dev to lpm_failed_devs list */ - xhci_warn(xhci, "device LPM test failed, may disconnect and " - "re-enumerate\n"); - dev_info = kzalloc(sizeof(struct dev_info), GFP_ATOMIC); - if (!dev_info) { - ret = -ENOMEM; - goto finish; - } - dev_info->dev_id = dev_id; - INIT_LIST_HEAD(&dev_info->list); - list_add(&dev_info->list, &xhci->lpm_failed_devs); - } else { - xhci_ring_device(xhci, udev->slot_id); - } - -finish: - spin_unlock_irqrestore(&xhci->lock, flags); - return ret; -} - int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, struct usb_device *udev, int enable) { @@ -4216,7 +4090,7 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, } pm_val &= ~PORT_HIRD_MASK; - pm_val |= PORT_HIRD(hird) | PORT_RWE; + pm_val |= PORT_HIRD(hird) | PORT_RWE | PORT_L1DS(udev->slot_id); xhci_writel(xhci, pm_val, pm_addr); pm_val = xhci_readl(xhci, pm_addr); pm_val |= PORT_HLE; @@ -4224,7 +4098,7 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd, /* flush write */ xhci_readl(xhci, pm_addr); } else { - pm_val &= ~(PORT_HLE | PORT_RWE | PORT_HIRD_MASK); + pm_val &= ~(PORT_HLE | PORT_RWE | PORT_HIRD_MASK | PORT_L1DS_MASK); xhci_writel(xhci, pm_val, pm_addr); /* flush write */ xhci_readl(xhci, pm_addr); @@ -4267,24 +4141,26 @@ static int xhci_check_usb2_port_capability(struct xhci_hcd *xhci, int port, int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); - int ret; int portnum = udev->portnum - 1; - ret = xhci_usb2_software_lpm_test(hcd, udev); - if (!ret) { - xhci_dbg(xhci, "software LPM test succeed\n"); - if (xhci->hw_lpm_support == 1 && - xhci_check_usb2_port_capability(xhci, portnum, XHCI_HLC)) { - udev->usb2_hw_lpm_capable = 1; - udev->l1_params.timeout = XHCI_L1_TIMEOUT; - udev->l1_params.besl = XHCI_DEFAULT_BESL; - if (xhci_check_usb2_port_capability(xhci, portnum, - XHCI_BLC)) - udev->usb2_hw_lpm_besl_capable = 1; - ret = xhci_set_usb2_hardware_lpm(hcd, udev, 1); - if (!ret) - udev->usb2_hw_lpm_enabled = 1; - } + if (hcd->speed == HCD_USB3 || !xhci->sw_lpm_support || + !udev->lpm_capable) + return 0; + + /* we only support lpm for non-hub device connected to root hub yet */ + if (!udev->parent || udev->parent->parent || + udev->descriptor.bDeviceClass == USB_CLASS_HUB) + return 0; + + if (xhci->hw_lpm_support == 1 && + xhci_check_usb2_port_capability( + xhci, portnum, XHCI_HLC)) { + udev->usb2_hw_lpm_capable = 1; + udev->l1_params.timeout = XHCI_L1_TIMEOUT; + udev->l1_params.besl = XHCI_DEFAULT_BESL; + if (xhci_check_usb2_port_capability(xhci, portnum, + XHCI_BLC)) + udev->usb2_hw_lpm_besl_capable = 1; } return 0; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 289fbfbae746..03c74b7965f8 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -383,6 +383,7 @@ struct xhci_op_regs { #define PORT_RWE (1 << 3) #define PORT_HIRD(p) (((p) & 0xf) << 4) #define PORT_HIRD_MASK (0xf << 4) +#define PORT_L1DS_MASK (0xff << 8) #define PORT_L1DS(p) (((p) & 0xff) << 8) #define PORT_HLE (1 << 16) @@ -934,8 +935,6 @@ struct xhci_virt_device { /* Rings saved to ensure old alt settings can be re-instated */ struct xhci_ring **ring_cache; int num_rings_cached; - /* Store xHC assigned device address */ - int address; #define XHCI_MAX_RINGS_CACHED 31 struct xhci_virt_ep eps[31]; struct completion cmd_completion; @@ -1548,6 +1547,8 @@ struct xhci_hcd { #define XHCI_COMP_MODE_QUIRK (1 << 14) #define XHCI_AVOID_BEI (1 << 15) #define XHCI_PLAT (1 << 16) +#define XHCI_SLOW_SUSPEND (1 << 17) +#define XHCI_SPURIOUS_WAKEUP (1 << 18) unsigned int num_active_eps; unsigned int limit_active_eps; /* There are two roothubs to keep track of bus suspend info for */ diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig index e2b21c1d9c40..ba5f70f92888 100644 --- a/drivers/usb/misc/Kconfig +++ b/drivers/usb/misc/Kconfig @@ -246,6 +246,6 @@ config USB_EZUSB_FX2 config USB_HSIC_USB3503 tristate "USB3503 HSIC to USB20 Driver" depends on I2C - select REGMAP + select REGMAP_I2C help This option enables support for SMSC USB3503 HSIC to USB 2.0 Driver. diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index aa28ac8c7607..b4152820d655 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -120,7 +120,7 @@ get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf) struct usb_host_endpoint *e; e = alt->endpoint + ep; - switch (e->desc.bmAttributes) { + switch (usb_endpoint_type(&e->desc)) { case USB_ENDPOINT_XFER_BULK: break; case USB_ENDPOINT_XFER_ISOC: @@ -437,7 +437,7 @@ alloc_sglist(int nents, int max, int vary) if (max == 0) return NULL; - sg = kmalloc_array(nents, sizeof *sg, GFP_KERNEL); + sg = kmalloc_array(nents, sizeof(*sg), GFP_KERNEL); if (!sg) return NULL; sg_init_table(sg, nents); @@ -573,7 +573,7 @@ static int is_good_config(struct usbtest_dev *tdev, int len) { struct usb_config_descriptor *config; - if (len < sizeof *config) + if (len < sizeof(*config)) return 0; config = (struct usb_config_descriptor *) tdev->buf; @@ -606,6 +606,76 @@ static int is_good_config(struct usbtest_dev *tdev, int len) return 0; } +static int is_good_ext(struct usbtest_dev *tdev, u8 *buf) +{ + struct usb_ext_cap_descriptor *ext; + u32 attr; + + ext = (struct usb_ext_cap_descriptor *) buf; + + if (ext->bLength != USB_DT_USB_EXT_CAP_SIZE) { + ERROR(tdev, "bogus usb 2.0 extension descriptor length\n"); + return 0; + } + + attr = le32_to_cpu(ext->bmAttributes); + /* bits[1:4] is used and others are reserved */ + if (attr & ~0x1e) { /* reserved == 0 */ + ERROR(tdev, "reserved bits set\n"); + return 0; + } + + return 1; +} + +static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf) +{ + struct usb_ss_cap_descriptor *ss; + + ss = (struct usb_ss_cap_descriptor *) buf; + + if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) { + ERROR(tdev, "bogus superspeed device capability descriptor length\n"); + return 0; + } + + /* + * only bit[1] of bmAttributes is used for LTM and others are + * reserved + */ + if (ss->bmAttributes & ~0x02) { /* reserved == 0 */ + ERROR(tdev, "reserved bits set in bmAttributes\n"); + return 0; + } + + /* bits[0:3] of wSpeedSupported is used and others are reserved */ + if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) { /* reserved == 0 */ + ERROR(tdev, "reserved bits set in wSpeedSupported\n"); + return 0; + } + + return 1; +} + +static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf) +{ + struct usb_ss_container_id_descriptor *con_id; + + con_id = (struct usb_ss_container_id_descriptor *) buf; + + if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) { + ERROR(tdev, "bogus container id descriptor length\n"); + return 0; + } + + if (con_id->bReserved) { /* reserved == 0 */ + ERROR(tdev, "reserved bits set\n"); + return 0; + } + + return 1; +} + /* sanity test for standard requests working with usb_control_mesg() and some * of the utility functions which use it. * @@ -683,12 +753,96 @@ static int ch9_postconfig(struct usbtest_dev *dev) /* there's always [9.4.3] a device descriptor [9.6.1] */ retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0, - dev->buf, sizeof udev->descriptor); - if (retval != sizeof udev->descriptor) { + dev->buf, sizeof(udev->descriptor)); + if (retval != sizeof(udev->descriptor)) { dev_err(&iface->dev, "dev descriptor --> %d\n", retval); return (retval < 0) ? retval : -EDOM; } + /* + * there's always [9.4.3] a bos device descriptor [9.6.2] in USB + * 3.0 spec + */ + if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0300) { + struct usb_bos_descriptor *bos = NULL; + struct usb_dev_cap_header *header = NULL; + unsigned total, num, length; + u8 *buf; + + retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf, + sizeof(*udev->bos->desc)); + if (retval != sizeof(*udev->bos->desc)) { + dev_err(&iface->dev, "bos descriptor --> %d\n", retval); + return (retval < 0) ? retval : -EDOM; + } + + bos = (struct usb_bos_descriptor *)dev->buf; + total = le16_to_cpu(bos->wTotalLength); + num = bos->bNumDeviceCaps; + + if (total > TBUF_SIZE) + total = TBUF_SIZE; + + /* + * get generic device-level capability descriptors [9.6.2] + * in USB 3.0 spec + */ + retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf, + total); + if (retval != total) { + dev_err(&iface->dev, "bos descriptor set --> %d\n", + retval); + return (retval < 0) ? retval : -EDOM; + } + + length = sizeof(*udev->bos->desc); + buf = dev->buf; + for (i = 0; i < num; i++) { + buf += length; + if (buf + sizeof(struct usb_dev_cap_header) > + dev->buf + total) + break; + + header = (struct usb_dev_cap_header *)buf; + length = header->bLength; + + if (header->bDescriptorType != + USB_DT_DEVICE_CAPABILITY) { + dev_warn(&udev->dev, "not device capability descriptor, skip\n"); + continue; + } + + switch (header->bDevCapabilityType) { + case USB_CAP_TYPE_EXT: + if (buf + USB_DT_USB_EXT_CAP_SIZE > + dev->buf + total || + !is_good_ext(dev, buf)) { + dev_err(&iface->dev, "bogus usb 2.0 extension descriptor\n"); + return -EDOM; + } + break; + case USB_SS_CAP_TYPE: + if (buf + USB_DT_USB_SS_CAP_SIZE > + dev->buf + total || + !is_good_ss_cap(dev, buf)) { + dev_err(&iface->dev, "bogus superspeed device capability descriptor\n"); + return -EDOM; + } + break; + case CONTAINER_ID_TYPE: + if (buf + USB_DT_USB_SS_CONTN_ID_SIZE > + dev->buf + total || + !is_good_con_id(dev, buf)) { + dev_err(&iface->dev, "bogus container id descriptor\n"); + return -EDOM; + } + break; + default: + break; + } + } + } + /* there's always [9.4.3] at least one config descriptor [9.6.3] */ for (i = 0; i < udev->descriptor.bNumConfigurations; i++) { retval = usb_get_descriptor(udev, USB_DT_CONFIG, i, @@ -954,7 +1108,7 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param) * device, but some are chosen to trigger protocol stalls * or short reads. */ - memset(&req, 0, sizeof req); + memset(&req, 0, sizeof(req)); req.bRequest = USB_REQ_GET_DESCRIPTOR; req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE; @@ -1074,7 +1228,7 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param) if (!u) goto cleanup; - reqp = kmalloc(sizeof *reqp, GFP_KERNEL); + reqp = kmalloc(sizeof(*reqp), GFP_KERNEL); if (!reqp) goto cleanup; reqp->setup = req; @@ -1667,13 +1821,13 @@ test_iso_queue(struct usbtest_dev *dev, struct usbtest_param *param, if (param->sglen > 10) return -EDOM; - memset(&context, 0, sizeof context); + memset(&context, 0, sizeof(context)); context.count = param->iterations * param->sglen; context.dev = dev; init_completion(&context.done); spin_lock_init(&context.lock); - memset(urbs, 0, sizeof urbs); + memset(urbs, 0, sizeof(urbs)); udev = testdev_to_usbdev(dev); dev_info(&dev->intf->dev, "... iso period %d %sframes, wMaxPacket %04x\n", diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index c258a97ef1b0..57dfc0cedb00 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -75,6 +75,7 @@ config USB_MUSB_TUSB6010 config USB_MUSB_OMAP2PLUS tristate "OMAP2430 and onwards" depends on ARCH_OMAP2PLUS + select GENERIC_PHY config USB_MUSB_AM35X tristate "AM35x" @@ -90,7 +91,7 @@ config USB_MUSB_BLACKFIN depends on (BF54x && !BF544) || (BF52x && ! BF522 && !BF523) config USB_MUSB_UX500 - tristate "U8500 and U5500" + tristate "Ux500 platforms" endchoice @@ -112,7 +113,7 @@ choice allow using DMA on multiplatform kernels. config USB_UX500_DMA - bool 'ST Ericsson U8500 and U5500' + bool 'ST Ericsson Ux500' depends on USB_MUSB_UX500 help Enable DMA transfers on UX500 platforms. diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c index 5c310c664218..ca45b39db5b9 100644 --- a/drivers/usb/musb/am35x.c +++ b/drivers/usb/musb/am35x.c @@ -89,7 +89,6 @@ struct am35x_glue { struct clk *phy_clk; struct clk *clk; }; -#define glue_to_musb(g) platform_get_drvdata(g->musb) /* * am35x_musb_enable - enable interrupts @@ -452,14 +451,18 @@ static const struct musb_platform_ops am35x_ops = { .set_vbus = am35x_musb_set_vbus, }; -static u64 am35x_dmamask = DMA_BIT_MASK(32); +static const struct platform_device_info am35x_dev_info = { + .name = "musb-hdrc", + .id = PLATFORM_DEVID_AUTO, + .dma_mask = DMA_BIT_MASK(32), +}; static int am35x_probe(struct platform_device *pdev) { struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct platform_device *musb; struct am35x_glue *glue; - + struct platform_device_info pinfo; struct clk *phy_clk; struct clk *clk; @@ -471,12 +474,6 @@ static int am35x_probe(struct platform_device *pdev) goto err0; } - musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); - if (!musb) { - dev_err(&pdev->dev, "failed to allocate musb device\n"); - goto err1; - } - phy_clk = clk_get(&pdev->dev, "fck"); if (IS_ERR(phy_clk)) { dev_err(&pdev->dev, "failed to get PHY clock\n"); @@ -503,12 +500,7 @@ static int am35x_probe(struct platform_device *pdev) goto err6; } - musb->dev.parent = &pdev->dev; - musb->dev.dma_mask = &am35x_dmamask; - musb->dev.coherent_dma_mask = am35x_dmamask; - glue->dev = &pdev->dev; - glue->musb = musb; glue->phy_clk = phy_clk; glue->clk = clk; @@ -516,22 +508,17 @@ static int am35x_probe(struct platform_device *pdev) platform_set_drvdata(pdev, glue); - ret = platform_device_add_resources(musb, pdev->resource, - pdev->num_resources); - if (ret) { - dev_err(&pdev->dev, "failed to add resources\n"); - goto err7; - } - - ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); - if (ret) { - dev_err(&pdev->dev, "failed to add platform_data\n"); - goto err7; - } - - ret = platform_device_add(musb); - if (ret) { - dev_err(&pdev->dev, "failed to register musb device\n"); + pinfo = am35x_dev_info; + pinfo.parent = &pdev->dev; + pinfo.res = pdev->resource; + pinfo.num_res = pdev->num_resources; + pinfo.data = pdata; + pinfo.size_data = sizeof(*pdata); + + glue->musb = musb = platform_device_register_full(&pinfo); + if (IS_ERR(musb)) { + ret = PTR_ERR(musb); + dev_err(&pdev->dev, "failed to register musb device: %d\n", ret); goto err7; } @@ -550,9 +537,6 @@ err4: clk_put(phy_clk); err3: - platform_device_put(musb); - -err1: kfree(glue); err0: @@ -615,23 +599,16 @@ static int am35x_resume(struct device *dev) return 0; } - -static struct dev_pm_ops am35x_pm_ops = { - .suspend = am35x_suspend, - .resume = am35x_resume, -}; - -#define DEV_PM_OPS &am35x_pm_ops -#else -#define DEV_PM_OPS NULL #endif +static SIMPLE_DEV_PM_OPS(am35x_pm_ops, am35x_suspend, am35x_resume); + static struct platform_driver am35x_driver = { .probe = am35x_probe, .remove = am35x_remove, .driver = { .name = "musb-am35x", - .pm = DEV_PM_OPS, + .pm = &am35x_pm_ops, }, }; diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c index 72e2056b6082..d9692f78e227 100644 --- a/drivers/usb/musb/blackfin.c +++ b/drivers/usb/musb/blackfin.c @@ -561,23 +561,16 @@ static int bfin_resume(struct device *dev) return 0; } - -static struct dev_pm_ops bfin_pm_ops = { - .suspend = bfin_suspend, - .resume = bfin_resume, -}; - -#define DEV_PM_OPS &bfin_pm_ops -#else -#define DEV_PM_OPS NULL #endif +static SIMPLE_DEV_PM_OPS(bfin_pm_ops, bfin_suspend, bfin_resume); + static struct platform_driver bfin_driver = { .probe = bfin_probe, .remove = __exit_p(bfin_remove), .driver = { .name = "musb-blackfin", - .pm = DEV_PM_OPS, + .pm = &bfin_pm_ops, }, }; diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c index d9ddf4122f37..2f2c1cb36421 100644 --- a/drivers/usb/musb/da8xx.c +++ b/drivers/usb/musb/da8xx.c @@ -472,7 +472,11 @@ static const struct musb_platform_ops da8xx_ops = { .set_vbus = da8xx_musb_set_vbus, }; -static u64 da8xx_dmamask = DMA_BIT_MASK(32); +static const struct platform_device_info da8xx_dev_info = { + .name = "musb-hdrc", + .id = PLATFORM_DEVID_AUTO, + .dma_mask = DMA_BIT_MASK(32), +}; static int da8xx_probe(struct platform_device *pdev) { @@ -480,7 +484,7 @@ static int da8xx_probe(struct platform_device *pdev) struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct platform_device *musb; struct da8xx_glue *glue; - + struct platform_device_info pinfo; struct clk *clk; int ret = -ENOMEM; @@ -491,12 +495,6 @@ static int da8xx_probe(struct platform_device *pdev) goto err0; } - musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); - if (!musb) { - dev_err(&pdev->dev, "failed to allocate musb device\n"); - goto err1; - } - clk = clk_get(&pdev->dev, "usb20"); if (IS_ERR(clk)) { dev_err(&pdev->dev, "failed to get clock\n"); @@ -510,12 +508,7 @@ static int da8xx_probe(struct platform_device *pdev) goto err4; } - musb->dev.parent = &pdev->dev; - musb->dev.dma_mask = &da8xx_dmamask; - musb->dev.coherent_dma_mask = da8xx_dmamask; - glue->dev = &pdev->dev; - glue->musb = musb; glue->clk = clk; pdata->platform_ops = &da8xx_ops; @@ -535,22 +528,17 @@ static int da8xx_probe(struct platform_device *pdev) musb_resources[1].end = pdev->resource[1].end; musb_resources[1].flags = pdev->resource[1].flags; - ret = platform_device_add_resources(musb, musb_resources, - ARRAY_SIZE(musb_resources)); - if (ret) { - dev_err(&pdev->dev, "failed to add resources\n"); - goto err5; - } - - ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); - if (ret) { - dev_err(&pdev->dev, "failed to add platform_data\n"); - goto err5; - } - - ret = platform_device_add(musb); - if (ret) { - dev_err(&pdev->dev, "failed to register musb device\n"); + pinfo = da8xx_dev_info; + pinfo.parent = &pdev->dev; + pinfo.res = musb_resources; + pinfo.num_res = ARRAY_SIZE(musb_resources); + pinfo.data = pdata; + pinfo.size_data = sizeof(*pdata); + + glue->musb = musb = platform_device_register_full(&pinfo); + if (IS_ERR(musb)) { + ret = PTR_ERR(musb); + dev_err(&pdev->dev, "failed to register musb device: %d\n", ret); goto err5; } @@ -563,9 +551,6 @@ err4: clk_put(clk); err3: - platform_device_put(musb); - -err1: kfree(glue); err0: diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index ed0834e2b72e..1121fd741bf8 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -505,14 +505,19 @@ static const struct musb_platform_ops davinci_ops = { .set_vbus = davinci_musb_set_vbus, }; -static u64 davinci_dmamask = DMA_BIT_MASK(32); +static const struct platform_device_info davinci_dev_info = { + .name = "musb-hdrc", + .id = PLATFORM_DEVID_AUTO, + .dma_mask = DMA_BIT_MASK(32), +}; static int davinci_probe(struct platform_device *pdev) { - struct resource musb_resources[2]; + struct resource musb_resources[3]; struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct platform_device *musb; struct davinci_glue *glue; + struct platform_device_info pinfo; struct clk *clk; int ret = -ENOMEM; @@ -523,12 +528,6 @@ static int davinci_probe(struct platform_device *pdev) goto err0; } - musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); - if (!musb) { - dev_err(&pdev->dev, "failed to allocate musb device\n"); - goto err1; - } - clk = clk_get(&pdev->dev, "usb"); if (IS_ERR(clk)) { dev_err(&pdev->dev, "failed to get clock\n"); @@ -542,12 +541,7 @@ static int davinci_probe(struct platform_device *pdev) goto err4; } - musb->dev.parent = &pdev->dev; - musb->dev.dma_mask = &davinci_dmamask; - musb->dev.coherent_dma_mask = davinci_dmamask; - glue->dev = &pdev->dev; - glue->musb = musb; glue->clk = clk; pdata->platform_ops = &davinci_ops; @@ -567,22 +561,26 @@ static int davinci_probe(struct platform_device *pdev) musb_resources[1].end = pdev->resource[1].end; musb_resources[1].flags = pdev->resource[1].flags; - ret = platform_device_add_resources(musb, musb_resources, - ARRAY_SIZE(musb_resources)); - if (ret) { - dev_err(&pdev->dev, "failed to add resources\n"); - goto err5; - } - - ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); - if (ret) { - dev_err(&pdev->dev, "failed to add platform_data\n"); - goto err5; - } - - ret = platform_device_add(musb); - if (ret) { - dev_err(&pdev->dev, "failed to register musb device\n"); + /* + * For DM6467 3 resources are passed. A placeholder for the 3rd + * resource is always there, so it's safe to always copy it... + */ + musb_resources[2].name = pdev->resource[2].name; + musb_resources[2].start = pdev->resource[2].start; + musb_resources[2].end = pdev->resource[2].end; + musb_resources[2].flags = pdev->resource[2].flags; + + pinfo = davinci_dev_info; + pinfo.parent = &pdev->dev; + pinfo.res = musb_resources; + pinfo.num_res = ARRAY_SIZE(musb_resources); + pinfo.data = pdata; + pinfo.size_data = sizeof(*pdata); + + glue->musb = musb = platform_device_register_full(&pinfo); + if (IS_ERR(musb)) { + ret = PTR_ERR(musb); + dev_err(&pdev->dev, "failed to register musb device: %d\n", ret); goto err5; } @@ -595,9 +593,6 @@ err4: clk_put(clk); err3: - platform_device_put(musb); - -err1: kfree(glue); err0: diff --git a/drivers/usb/musb/musb_am335x.c b/drivers/usb/musb/musb_am335x.c index 41ac5b5b57ce..8be9b02c3cc2 100644 --- a/drivers/usb/musb/musb_am335x.c +++ b/drivers/usb/musb/musb_am335x.c @@ -46,7 +46,7 @@ static struct platform_driver am335x_child_driver = { .remove = am335x_child_remove, .driver = { .name = "am335x-usb-childs", - .of_match_table = of_match_ptr(am335x_child_of_match), + .of_match_table = am335x_child_of_match, }, }; diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 18e877ffe7b7..0a43329569d1 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -617,7 +617,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, /* case 3 << MUSB_DEVCTL_VBUS_SHIFT: */ default: s = "VALID"; break; - }; s; }), + } s; }), VBUSERR_RETRY_COUNT - musb->vbuserr_retry, musb->port1_status); @@ -922,6 +922,52 @@ static void musb_generic_disable(struct musb *musb) } /* + * Program the HDRC to start (enable interrupts, dma, etc.). + */ +void musb_start(struct musb *musb) +{ + void __iomem *regs = musb->mregs; + u8 devctl = musb_readb(regs, MUSB_DEVCTL); + + dev_dbg(musb->controller, "<== devctl %02x\n", devctl); + + /* Set INT enable registers, enable interrupts */ + musb->intrtxe = musb->epmask; + musb_writew(regs, MUSB_INTRTXE, musb->intrtxe); + musb->intrrxe = musb->epmask & 0xfffe; + musb_writew(regs, MUSB_INTRRXE, musb->intrrxe); + musb_writeb(regs, MUSB_INTRUSBE, 0xf7); + + musb_writeb(regs, MUSB_TESTMODE, 0); + + /* put into basic highspeed mode and start session */ + musb_writeb(regs, MUSB_POWER, MUSB_POWER_ISOUPDATE + | MUSB_POWER_HSENAB + /* ENSUSPEND wedges tusb */ + /* | MUSB_POWER_ENSUSPEND */ + ); + + musb->is_active = 0; + devctl = musb_readb(regs, MUSB_DEVCTL); + devctl &= ~MUSB_DEVCTL_SESSION; + + /* session started after: + * (a) ID-grounded irq, host mode; + * (b) vbus present/connect IRQ, peripheral mode; + * (c) peripheral initiates, using SRP + */ + if (musb->port_mode != MUSB_PORT_MODE_HOST && + (devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS) { + musb->is_active = 1; + } else { + devctl |= MUSB_DEVCTL_SESSION; + } + + musb_platform_enable(musb); + musb_writeb(regs, MUSB_DEVCTL, devctl); +} + +/* * Make the HDRC stop (disable interrupts, etc.); * reversible by musb_start * called on gadget driver unregister @@ -1763,8 +1809,7 @@ static void musb_free(struct musb *musb) disable_irq_wake(musb->nIrq); free_irq(musb->nIrq, musb); } - if (musb->dma_controller) - dma_controller_destroy(musb->dma_controller); + cancel_work_sync(&musb->irq_work); musb_host_free(musb); } @@ -1839,8 +1884,13 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) pm_runtime_get_sync(musb->controller); - if (use_dma && dev->dma_mask) + if (use_dma && dev->dma_mask) { musb->dma_controller = dma_controller_create(musb, musb->mregs); + if (IS_ERR(musb->dma_controller)) { + status = PTR_ERR(musb->dma_controller); + goto fail2_5; + } + } /* be sure interrupts are disabled before connecting ISR */ musb_platform_disable(musb); @@ -1900,6 +1950,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) if (status < 0) goto fail3; status = musb_gadget_setup(musb); + if (status) + musb_host_cleanup(musb); break; default: dev_err(dev, "unsupported port mode %d\n", musb->port_mode); @@ -1926,10 +1978,12 @@ fail5: fail4: musb_gadget_cleanup(musb); + musb_host_cleanup(musb); fail3: if (musb->dma_controller) dma_controller_destroy(musb->dma_controller); +fail2_5: pm_runtime_put_sync(musb->controller); fail2: @@ -1986,6 +2040,9 @@ static int musb_remove(struct platform_device *pdev) musb_exit_debugfs(musb); musb_shutdown(pdev); + if (musb->dma_controller) + dma_controller_destroy(musb->dma_controller); + musb_free(musb); device_init_wakeup(dev, 0); return 0; diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 65f3917b4fc5..29f7cd7c7964 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -46,6 +46,7 @@ #include <linux/usb.h> #include <linux/usb/otg.h> #include <linux/usb/musb.h> +#include <linux/phy/phy.h> struct musb; struct musb_hw_ep; @@ -341,6 +342,7 @@ struct musb { u16 int_tx; struct usb_phy *xceiv; + struct phy *phy; int nIrq; unsigned irq_wake:1; @@ -503,6 +505,7 @@ static inline void musb_configure_ep0(struct musb *musb) extern const char musb_driver_name[]; extern void musb_stop(struct musb *musb); +extern void musb_start(struct musb *musb); extern void musb_write_fifo(struct musb_hw_ep *ep, u16 len, const u8 *src); extern void musb_read_fifo(struct musb_hw_ep *ep, u16 len, u8 *dst); diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c index ae959746f77f..ff9d6de2b746 100644 --- a/drivers/usb/musb/musb_cppi41.c +++ b/drivers/usb/musb/musb_cppi41.c @@ -484,6 +484,7 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller) if (ret) goto err; + ret = -EINVAL; if (port > MUSB_DMA_NUM_CHANNELS || !port) goto err; if (is_tx) @@ -503,6 +504,7 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller) dc = dma_request_slave_channel(dev, str); if (!dc) { dev_err(dev, "Falied to request %s.\n", str); + ret = -EPROBE_DEFER; goto err; } cppi41_channel->dc = dc; @@ -510,7 +512,7 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller) return 0; err: cppi41_release_all_dma_chans(controller); - return -EINVAL; + return ret; } void dma_controller_destroy(struct dma_controller *c) @@ -526,7 +528,7 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *base) { struct cppi41_dma_controller *controller; - int ret; + int ret = 0; if (!musb->controller->of_node) { dev_err(musb->controller, "Need DT for the DMA engine.\n"); @@ -553,5 +555,7 @@ struct dma_controller *dma_controller_create(struct musb *musb, plat_get_fail: kfree(controller); kzalloc_fail: + if (ret == -EPROBE_DEFER) + return ERR_PTR(ret); return NULL; } diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index bd4138d80a48..1901f6fe5807 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -121,6 +121,43 @@ struct dsps_glue { unsigned long last_timer; /* last timer data for each instance */ }; +static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout) +{ + struct device *dev = musb->controller; + struct dsps_glue *glue = dev_get_drvdata(dev->parent); + + if (timeout == 0) + timeout = jiffies + msecs_to_jiffies(3); + + /* Never idle if active, or when VBUS timeout is not set as host */ + if (musb->is_active || (musb->a_wait_bcon == 0 && + musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) { + dev_dbg(musb->controller, "%s active, deleting timer\n", + usb_otg_state_string(musb->xceiv->state)); + del_timer(&glue->timer); + glue->last_timer = jiffies; + return; + } + if (musb->port_mode != MUSB_PORT_MODE_DUAL_ROLE) + return; + + if (!musb->g.dev.driver) + return; + + if (time_after(glue->last_timer, timeout) && + timer_pending(&glue->timer)) { + dev_dbg(musb->controller, + "Longer idle timer already pending, ignoring...\n"); + return; + } + glue->last_timer = timeout; + + dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n", + usb_otg_state_string(musb->xceiv->state), + jiffies_to_msecs(timeout - jiffies)); + mod_timer(&glue->timer, timeout); +} + /** * dsps_musb_enable - enable interrupts */ @@ -143,6 +180,7 @@ static void dsps_musb_enable(struct musb *musb) /* Force the DRVVBUS IRQ so we can start polling for ID change. */ dsps_writel(reg_base, wrp->coreintr_set, (1 << wrp->drvvbus) << wrp->usb_shift); + dsps_musb_try_idle(musb, 0); } /** @@ -171,6 +209,7 @@ static void otg_timer(unsigned long _musb) const struct dsps_musb_wrapper *wrp = glue->wrp; u8 devctl; unsigned long flags; + int skip_session = 0; /* * We poll because DSPS IP's won't expose several OTG-critical @@ -183,10 +222,12 @@ static void otg_timer(unsigned long _musb) spin_lock_irqsave(&musb->lock, flags); switch (musb->xceiv->state) { case OTG_STATE_A_WAIT_BCON: - devctl &= ~MUSB_DEVCTL_SESSION; - dsps_writeb(musb->mregs, MUSB_DEVCTL, devctl); + dsps_writeb(musb->mregs, MUSB_DEVCTL, 0); + skip_session = 1; + /* fall */ - devctl = dsps_readb(musb->mregs, MUSB_DEVCTL); + case OTG_STATE_A_IDLE: + case OTG_STATE_B_IDLE: if (devctl & MUSB_DEVCTL_BDEVICE) { musb->xceiv->state = OTG_STATE_B_IDLE; MUSB_DEV_MODE(musb); @@ -194,60 +235,21 @@ static void otg_timer(unsigned long _musb) musb->xceiv->state = OTG_STATE_A_IDLE; MUSB_HST_MODE(musb); } + if (!(devctl & MUSB_DEVCTL_SESSION) && !skip_session) + dsps_writeb(mregs, MUSB_DEVCTL, MUSB_DEVCTL_SESSION); + mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ); break; case OTG_STATE_A_WAIT_VFALL: musb->xceiv->state = OTG_STATE_A_WAIT_VRISE; dsps_writel(musb->ctrl_base, wrp->coreintr_set, MUSB_INTR_VBUSERROR << wrp->usb_shift); break; - case OTG_STATE_B_IDLE: - devctl = dsps_readb(mregs, MUSB_DEVCTL); - if (devctl & MUSB_DEVCTL_BDEVICE) - mod_timer(&glue->timer, - jiffies + wrp->poll_seconds * HZ); - else - musb->xceiv->state = OTG_STATE_A_IDLE; - break; default: break; } spin_unlock_irqrestore(&musb->lock, flags); } -static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout) -{ - struct device *dev = musb->controller; - struct dsps_glue *glue = dev_get_drvdata(dev->parent); - - if (timeout == 0) - timeout = jiffies + msecs_to_jiffies(3); - - /* Never idle if active, or when VBUS timeout is not set as host */ - if (musb->is_active || (musb->a_wait_bcon == 0 && - musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) { - dev_dbg(musb->controller, "%s active, deleting timer\n", - usb_otg_state_string(musb->xceiv->state)); - del_timer(&glue->timer); - glue->last_timer = jiffies; - return; - } - if (musb->port_mode == MUSB_PORT_MODE_HOST) - return; - - if (time_after(glue->last_timer, timeout) && - timer_pending(&glue->timer)) { - dev_dbg(musb->controller, - "Longer idle timer already pending, ignoring...\n"); - return; - } - glue->last_timer = timeout; - - dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n", - usb_otg_state_string(musb->xceiv->state), - jiffies_to_msecs(timeout - jiffies)); - mod_timer(&glue->timer, timeout); -} - static irqreturn_t dsps_interrupt(int irq, void *hci) { struct musb *musb = hci; @@ -443,7 +445,7 @@ static int get_musb_port_mode(struct device *dev) case USB_DR_MODE_OTG: default: return MUSB_PORT_MODE_DUAL_ROLE; - }; + } } static int dsps_create_musb_pdev(struct dsps_glue *glue, @@ -631,7 +633,7 @@ static struct platform_driver dsps_usbss_driver = { .remove = dsps_remove, .driver = { .name = "musb-dsps", - .of_match_table = of_match_ptr(musb_dsps_of_match), + .of_match_table = musb_dsps_of_match, }, }; diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index b19ed213ab85..d2d3a173b315 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1121,7 +1121,7 @@ static int musb_gadget_enable(struct usb_ep *ep, case USB_ENDPOINT_XFER_BULK: s = "bulk"; break; case USB_ENDPOINT_XFER_INT: s = "int"; break; default: s = "iso"; break; - }; s; }), + } s; }), musb_ep->is_in ? "IN" : "OUT", musb_ep->dma ? "dma, " : "", musb_ep->packet_sz); @@ -1853,11 +1853,14 @@ static int musb_gadget_start(struct usb_gadget *g, musb->gadget_driver = driver; spin_lock_irqsave(&musb->lock, flags); + musb->is_active = 1; otg_set_peripheral(otg, &musb->g); musb->xceiv->state = OTG_STATE_B_IDLE; spin_unlock_irqrestore(&musb->lock, flags); + musb_start(musb); + /* REVISIT: funcall to other code, which also * handles power budgeting ... this way also * ensures HdrcStart is indirectly called. diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 9a2b8c85f19a..6582a20bec05 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -253,7 +253,7 @@ musb_start_urb(struct musb *musb, int is_in, struct musb_qh *qh) case USB_ENDPOINT_XFER_BULK: s = "-bulk"; break; case USB_ENDPOINT_XFER_ISOC: s = "-iso"; break; default: s = "-intr"; break; - }; s; }), + } s; }), epnum, buf + offset, len); /* Configure endpoint */ diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c index a523950c2b32..9af6bba5eac9 100644 --- a/drivers/usb/musb/musb_virthub.c +++ b/drivers/usb/musb/musb_virthub.c @@ -44,52 +44,6 @@ #include "musb_core.h" -/* -* Program the HDRC to start (enable interrupts, dma, etc.). -*/ -static void musb_start(struct musb *musb) -{ - void __iomem *regs = musb->mregs; - u8 devctl = musb_readb(regs, MUSB_DEVCTL); - - dev_dbg(musb->controller, "<== devctl %02x\n", devctl); - - /* Set INT enable registers, enable interrupts */ - musb->intrtxe = musb->epmask; - musb_writew(regs, MUSB_INTRTXE, musb->intrtxe); - musb->intrrxe = musb->epmask & 0xfffe; - musb_writew(regs, MUSB_INTRRXE, musb->intrrxe); - musb_writeb(regs, MUSB_INTRUSBE, 0xf7); - - musb_writeb(regs, MUSB_TESTMODE, 0); - - /* put into basic highspeed mode and start session */ - musb_writeb(regs, MUSB_POWER, MUSB_POWER_ISOUPDATE - | MUSB_POWER_HSENAB - /* ENSUSPEND wedges tusb */ - /* | MUSB_POWER_ENSUSPEND */ - ); - - musb->is_active = 0; - devctl = musb_readb(regs, MUSB_DEVCTL); - devctl &= ~MUSB_DEVCTL_SESSION; - - /* session started after: - * (a) ID-grounded irq, host mode; - * (b) vbus present/connect IRQ, peripheral mode; - * (c) peripheral initiates, using SRP - */ - if (musb->port_mode != MUSB_PORT_MODE_HOST && - (devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS) { - musb->is_active = 1; - } else { - devctl |= MUSB_DEVCTL_SESSION; - } - - musb_platform_enable(musb); - musb_writeb(regs, MUSB_DEVCTL, devctl); -} - static void musb_port_suspend(struct musb *musb, bool do_suspend) { struct usb_otg *otg = musb->xceiv->otg; @@ -266,6 +220,23 @@ int musb_hub_status_data(struct usb_hcd *hcd, char *buf) return retval; } +static int musb_has_gadget(struct musb *musb) +{ + /* + * In host-only mode we start a connection right away. In OTG mode + * we have to wait until we loaded a gadget. We don't really need a + * gadget if we operate as a host but we should not start a session + * as a device without a gadget or else we explode. + */ +#ifdef CONFIG_USB_MUSB_HOST + return 1; +#else + if (musb->port_mode == MUSB_PORT_MODE_HOST) + return 1; + return musb->g.dev.driver != NULL; +#endif +} + int musb_hub_control( struct usb_hcd *hcd, u16 typeReq, @@ -408,7 +379,7 @@ int musb_hub_control( * initialization logic, e.g. for OTG, or change any * logic relating to VBUS power-up. */ - if (!hcd->self.is_b_host) + if (!hcd->self.is_b_host && musb_has_gadget(musb)) musb_start(musb); break; case USB_PORT_FEAT_RESET: diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 59d2245db1c8..2a408cdaf7b2 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -38,6 +38,7 @@ #include <linux/delay.h> #include <linux/usb/musb-omap.h> #include <linux/usb/omap_control_usb.h> +#include <linux/of_platform.h> #include "musb_core.h" #include "omap2430.h" @@ -305,6 +306,9 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue) default: dev_dbg(dev, "ID float\n"); } + + atomic_notifier_call_chain(&musb->xceiv->notifier, + musb->xceiv->last_event, NULL); } @@ -348,11 +352,21 @@ static int omap2430_musb_init(struct musb *musb) * up through ULPI. TWL4030-family PMICs include one, * which needs a driver, drivers aren't always needed. */ - if (dev->parent->of_node) + if (dev->parent->of_node) { + musb->phy = devm_phy_get(dev->parent, "usb2-phy"); + + /* We can't totally remove musb->xceiv as of now because + * musb core uses xceiv.state and xceiv.otg. Once we have + * a separate state machine to handle otg, these can be moved + * out of xceiv and then we can start using the generic PHY + * framework + */ musb->xceiv = devm_usb_get_phy_by_phandle(dev->parent, "usb-phy", 0); - else + } else { musb->xceiv = devm_usb_get_phy_dev(dev, 0); + musb->phy = devm_phy_get(dev, "usb"); + } if (IS_ERR(musb->xceiv)) { status = PTR_ERR(musb->xceiv); @@ -364,6 +378,10 @@ static int omap2430_musb_init(struct musb *musb) return -EPROBE_DEFER; } + if (IS_ERR(musb->phy)) { + pr_err("HS USB OTG: no PHY configured\n"); + return PTR_ERR(musb->phy); + } musb->isr = omap2430_musb_interrupt; status = pm_runtime_get_sync(dev); @@ -397,7 +415,7 @@ static int omap2430_musb_init(struct musb *musb) if (glue->status != OMAP_MUSB_UNKNOWN) omap_musb_set_mailbox(glue); - usb_phy_init(musb->xceiv); + phy_init(musb->phy); pm_runtime_put_noidle(musb->controller); return 0; @@ -460,6 +478,7 @@ static int omap2430_musb_exit(struct musb *musb) del_timer_sync(&musb_idle_timer); omap2430_low_level_exit(musb); + phy_exit(musb->phy); return 0; } @@ -509,8 +528,12 @@ static int omap2430_probe(struct platform_device *pdev) glue->dev = &pdev->dev; glue->musb = musb; glue->status = OMAP_MUSB_UNKNOWN; + glue->control_otghs = ERR_PTR(-ENODEV); if (np) { + struct device_node *control_node; + struct platform_device *control_pdev; + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) { dev_err(&pdev->dev, @@ -539,22 +562,20 @@ static int omap2430_probe(struct platform_device *pdev) of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits); of_property_read_u32(np, "power", (u32 *)&pdata->power); config->multipoint = of_property_read_bool(np, "multipoint"); - pdata->has_mailbox = of_property_read_bool(np, - "ti,has-mailbox"); pdata->board_data = data; pdata->config = config; - } - if (pdata->has_mailbox) { - glue->control_otghs = omap_get_control_dev(); - if (IS_ERR(glue->control_otghs)) { - dev_vdbg(&pdev->dev, "Failed to get control device\n"); - ret = PTR_ERR(glue->control_otghs); - goto err2; + control_node = of_parse_phandle(np, "ctrl-module", 0); + if (control_node) { + control_pdev = of_find_device_by_node(control_node); + if (!control_pdev) { + dev_err(&pdev->dev, "Failed to get control device\n"); + ret = -EINVAL; + goto err2; + } + glue->control_otghs = &control_pdev->dev; } - } else { - glue->control_otghs = ERR_PTR(-ENODEV); } pdata->platform_ops = &omap2430_ops; @@ -638,7 +659,7 @@ static int omap2430_runtime_suspend(struct device *dev) OTG_INTERFSEL); omap2430_low_level_exit(musb); - usb_phy_set_suspend(musb->xceiv, 1); + phy_power_off(musb->phy); } return 0; @@ -653,8 +674,7 @@ static int omap2430_runtime_resume(struct device *dev) omap2430_low_level_init(musb); musb_writel(musb->mregs, OTG_INTERFSEL, musb->context.otg_interfsel); - - usb_phy_set_suspend(musb->xceiv, 0); + phy_power_on(musb->phy); } return 0; diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index b3b3ed723882..4432314d70ee 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -1152,7 +1152,11 @@ static const struct musb_platform_ops tusb_ops = { .set_vbus = tusb_musb_set_vbus, }; -static u64 tusb_dmamask = DMA_BIT_MASK(32); +static const struct platform_device_info tusb_dev_info = { + .name = "musb-hdrc", + .id = PLATFORM_DEVID_AUTO, + .dma_mask = DMA_BIT_MASK(32), +}; static int tusb_probe(struct platform_device *pdev) { @@ -1160,7 +1164,7 @@ static int tusb_probe(struct platform_device *pdev) struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev); struct platform_device *musb; struct tusb6010_glue *glue; - + struct platform_device_info pinfo; int ret = -ENOMEM; glue = kzalloc(sizeof(*glue), GFP_KERNEL); @@ -1169,18 +1173,7 @@ static int tusb_probe(struct platform_device *pdev) goto err0; } - musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); - if (!musb) { - dev_err(&pdev->dev, "failed to allocate musb device\n"); - goto err1; - } - - musb->dev.parent = &pdev->dev; - musb->dev.dma_mask = &tusb_dmamask; - musb->dev.coherent_dma_mask = tusb_dmamask; - glue->dev = &pdev->dev; - glue->musb = musb; pdata->platform_ops = &tusb_ops; @@ -1204,31 +1197,23 @@ static int tusb_probe(struct platform_device *pdev) musb_resources[2].end = pdev->resource[2].end; musb_resources[2].flags = pdev->resource[2].flags; - ret = platform_device_add_resources(musb, musb_resources, - ARRAY_SIZE(musb_resources)); - if (ret) { - dev_err(&pdev->dev, "failed to add resources\n"); - goto err3; - } - - ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); - if (ret) { - dev_err(&pdev->dev, "failed to add platform_data\n"); - goto err3; - } - - ret = platform_device_add(musb); - if (ret) { - dev_err(&pdev->dev, "failed to register musb device\n"); + pinfo = tusb_dev_info; + pinfo.parent = &pdev->dev; + pinfo.res = musb_resources; + pinfo.num_res = ARRAY_SIZE(musb_resources); + pinfo.data = pdata; + pinfo.size_data = sizeof(*pdata); + + glue->musb = musb = platform_device_register_full(&pinfo); + if (IS_ERR(musb)) { + ret = PTR_ERR(musb); + dev_err(&pdev->dev, "failed to register musb device: %d\n", ret); goto err3; } return 0; err3: - platform_device_put(musb); - -err1: kfree(glue); err0: diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c index 59256b12f746..f483d1924c28 100644 --- a/drivers/usb/musb/ux500.c +++ b/drivers/usb/musb/ux500.c @@ -376,17 +376,10 @@ static int ux500_resume(struct device *dev) return 0; } - -static const struct dev_pm_ops ux500_pm_ops = { - .suspend = ux500_suspend, - .resume = ux500_resume, -}; - -#define DEV_PM_OPS (&ux500_pm_ops) -#else -#define DEV_PM_OPS NULL #endif +static SIMPLE_DEV_PM_OPS(ux500_pm_ops, ux500_suspend, ux500_resume); + static const struct of_device_id ux500_match[] = { { .compatible = "stericsson,db8500-musb", }, {} @@ -397,7 +390,7 @@ static struct platform_driver ux500_driver = { .remove = ux500_remove, .driver = { .name = "musb-ux500", - .pm = DEV_PM_OPS, + .pm = &ux500_pm_ops, .of_match_table = ux500_match, }, }; diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index d5589f9c60a9..08e2f39027ec 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -66,17 +66,6 @@ config OMAP_CONTROL_USB power on the USB2 PHY is present in OMAP4 and OMAP5. OMAP5 has an additional register to power on USB3 PHY. -config OMAP_USB2 - tristate "OMAP USB2 PHY Driver" - depends on ARCH_OMAP2PLUS - select OMAP_CONTROL_USB - select USB_PHY - help - Enable this to support the transceiver that is part of SOC. This - driver takes care of all the PHY functionality apart from comparator. - The USB OTG controller communicates with the comparator using this - driver. - config OMAP_USB3 tristate "OMAP USB3 PHY Driver" depends on ARCH_OMAP2PLUS || COMPILE_TEST @@ -93,6 +82,7 @@ config AM335X_CONTROL_USB config AM335X_PHY_USB tristate "AM335x USB PHY Driver" + depends on ARM || COMPILE_TEST select USB_PHY select AM335X_CONTROL_USB select NOP_USB_XCEIV @@ -123,16 +113,6 @@ config SAMSUNG_USB3PHY Enable this to support Samsung USB 3.0 (Super Speed) phy controller for samsung SoCs. -config TWL4030_USB - tristate "TWL4030 USB Transceiver Driver" - depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS - select USB_PHY - help - Enable this to support the USB OTG transceiver on TWL4030 - family chips (including the TWL5030 and TPS659x0 devices). - This transceiver supports high and full speed devices plus, - in host mode, low speed. - config TWL6030_USB tristate "TWL6030 USB Transceiver Driver" depends on TWL4030_CORE && OMAP_USB2 && USB_MUSB_OMAP2PLUS @@ -214,6 +194,19 @@ config USB_RCAR_PHY To compile this driver as a module, choose M here: the module will be called phy-rcar-usb. +config USB_RCAR_GEN2_PHY + tristate "Renesas R-Car Gen2 USB PHY support" + depends on ARCH_R8A7790 || ARCH_R8A7791 || COMPILE_TEST + select USB_PHY + help + Say Y here to add support for the Renesas R-Car Gen2 USB PHY driver. + It is typically used to control internal USB PHY for USBHS, + and to configure shared USB channels 0 and 2. + This driver supports R8A7790 and R8A7791. + + To compile this driver as a module, choose M here: the + module will be called phy-rcar-gen2-usb. + config USB_ULPI bool "Generic ULPI Transceiver Driver" depends on ARM diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile index 2135e85f46ed..022c1da7fb78 100644 --- a/drivers/usb/phy/Makefile +++ b/drivers/usb/phy/Makefile @@ -15,12 +15,10 @@ obj-$(CONFIG_NOP_USB_XCEIV) += phy-generic.o obj-$(CONFIG_OMAP_CONTROL_USB) += phy-omap-control.o obj-$(CONFIG_AM335X_CONTROL_USB) += phy-am335x-control.o obj-$(CONFIG_AM335X_PHY_USB) += phy-am335x.o -obj-$(CONFIG_OMAP_USB2) += phy-omap-usb2.o obj-$(CONFIG_OMAP_USB3) += phy-omap-usb3.o obj-$(CONFIG_SAMSUNG_USBPHY) += phy-samsung-usb.o obj-$(CONFIG_SAMSUNG_USB2PHY) += phy-samsung-usb2.o obj-$(CONFIG_SAMSUNG_USB3PHY) += phy-samsung-usb3.o -obj-$(CONFIG_TWL4030_USB) += phy-twl4030-usb.o obj-$(CONFIG_TWL6030_USB) += phy-twl6030-usb.o obj-$(CONFIG_USB_EHCI_TEGRA) += phy-tegra-usb.o obj-$(CONFIG_USB_GPIO_VBUS) += phy-gpio-vbus-usb.o @@ -29,5 +27,6 @@ obj-$(CONFIG_USB_MSM_OTG) += phy-msm-usb.o obj-$(CONFIG_USB_MV_OTG) += phy-mv-usb.o obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o obj-$(CONFIG_USB_RCAR_PHY) += phy-rcar-usb.o +obj-$(CONFIG_USB_RCAR_GEN2_PHY) += phy-rcar-gen2-usb.o obj-$(CONFIG_USB_ULPI) += phy-ulpi.o obj-$(CONFIG_USB_ULPI_VIEWPORT) += phy-ulpi-viewport.o diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c index 22cf07d62e4c..634f49acd20e 100644 --- a/drivers/usb/phy/phy-am335x-control.c +++ b/drivers/usb/phy/phy-am335x-control.c @@ -26,6 +26,41 @@ struct am335x_control_usb { #define USBPHY_OTGVDET_EN (1 << 19) #define USBPHY_OTGSESSEND_EN (1 << 20) +#define AM335X_PHY0_WK_EN (1 << 0) +#define AM335X_PHY1_WK_EN (1 << 8) + +static void am335x_phy_wkup(struct phy_control *phy_ctrl, u32 id, bool on) +{ + struct am335x_control_usb *usb_ctrl; + u32 val; + u32 reg; + + usb_ctrl = container_of(phy_ctrl, struct am335x_control_usb, phy_ctrl); + + switch (id) { + case 0: + reg = AM335X_PHY0_WK_EN; + break; + case 1: + reg = AM335X_PHY1_WK_EN; + break; + default: + WARN_ON(1); + return; + } + + spin_lock(&usb_ctrl->lock); + val = readl(usb_ctrl->wkup); + + if (on) + val |= reg; + else + val &= ~reg; + + writel(val, usb_ctrl->wkup); + spin_unlock(&usb_ctrl->lock); +} + static void am335x_phy_power(struct phy_control *phy_ctrl, u32 id, bool on) { struct am335x_control_usb *usb_ctrl; @@ -59,6 +94,7 @@ static void am335x_phy_power(struct phy_control *phy_ctrl, u32 id, bool on) static const struct phy_control ctrl_am335x = { .phy_power = am335x_phy_power, + .phy_wkup = am335x_phy_wkup, }; static const struct of_device_id omap_control_usb_id_table[] = { @@ -117,6 +153,12 @@ static int am335x_control_usb_probe(struct platform_device *pdev) ctrl_usb->phy_reg = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(ctrl_usb->phy_reg)) return PTR_ERR(ctrl_usb->phy_reg); + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "wakeup"); + ctrl_usb->wkup = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(ctrl_usb->wkup)) + return PTR_ERR(ctrl_usb->wkup); + spin_lock_init(&ctrl_usb->lock); ctrl_usb->phy_ctrl = *phy_ctrl; @@ -129,7 +171,7 @@ static struct platform_driver am335x_control_driver = { .driver = { .name = "am335x-control-usb", .owner = THIS_MODULE, - .of_match_table = of_match_ptr(omap_control_usb_id_table), + .of_match_table = omap_control_usb_id_table, }, }; diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c index c4d614d1f173..6370e50649d7 100644 --- a/drivers/usb/phy/phy-am335x.c +++ b/drivers/usb/phy/phy-am335x.c @@ -53,21 +53,20 @@ static int am335x_phy_probe(struct platform_device *pdev) } ret = usb_phy_gen_create_phy(dev, &am_phy->usb_phy_gen, - USB_PHY_TYPE_USB2, 0, false, false); + USB_PHY_TYPE_USB2, 0, false); if (ret) return ret; ret = usb_add_phy_dev(&am_phy->usb_phy_gen.phy); if (ret) - goto err_add; + return ret; am_phy->usb_phy_gen.phy.init = am335x_init; am_phy->usb_phy_gen.phy.shutdown = am335x_shutdown; platform_set_drvdata(pdev, am_phy); + return 0; -err_add: - usb_phy_gen_cleanup_phy(&am_phy->usb_phy_gen); return ret; } @@ -79,6 +78,40 @@ static int am335x_phy_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM_RUNTIME + +static int am335x_phy_runtime_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct am335x_phy *am_phy = platform_get_drvdata(pdev); + + if (device_may_wakeup(dev)) + phy_ctrl_wkup(am_phy->phy_ctrl, am_phy->id, true); + phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, false); + return 0; +} + +static int am335x_phy_runtime_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct am335x_phy *am_phy = platform_get_drvdata(pdev); + + phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, true); + if (device_may_wakeup(dev)) + phy_ctrl_wkup(am_phy->phy_ctrl, am_phy->id, false); + return 0; +} + +static const struct dev_pm_ops am335x_pm_ops = { + SET_RUNTIME_PM_OPS(am335x_phy_runtime_suspend, + am335x_phy_runtime_resume, NULL) +}; + +#define DEV_PM_OPS (&am335x_pm_ops) +#else +#define DEV_PM_OPS NULL +#endif + static const struct of_device_id am335x_phy_ids[] = { { .compatible = "ti,am335x-usb-phy" }, { } @@ -91,7 +124,8 @@ static struct platform_driver am335x_phy_driver = { .driver = { .name = "am335x-phy-driver", .owner = THIS_MODULE, - .of_match_table = of_match_ptr(am335x_phy_ids), + .pm = DEV_PM_OPS, + .of_match_table = am335x_phy_ids, }, }; diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c index fa7c9f9628b5..7f3c73b967ce 100644 --- a/drivers/usb/phy/phy-fsl-usb.c +++ b/drivers/usb/phy/phy-fsl-usb.c @@ -134,7 +134,7 @@ int write_ulpi(u8 addr, u8 data) /* Operations that will be called from OTG Finite State Machine */ /* Charge vbus for vbus pulsing in SRP */ -void fsl_otg_chrg_vbus(int on) +void fsl_otg_chrg_vbus(struct otg_fsm *fsm, int on) { u32 tmp; @@ -170,7 +170,7 @@ void fsl_otg_dischrg_vbus(int on) } /* A-device driver vbus, controlled through PP bit in PORTSC */ -void fsl_otg_drv_vbus(int on) +void fsl_otg_drv_vbus(struct otg_fsm *fsm, int on) { u32 tmp; @@ -188,7 +188,7 @@ void fsl_otg_drv_vbus(int on) * Pull-up D+, signalling connect by periperal. Also used in * data-line pulsing in SRP */ -void fsl_otg_loc_conn(int on) +void fsl_otg_loc_conn(struct otg_fsm *fsm, int on) { u32 tmp; @@ -207,7 +207,7 @@ void fsl_otg_loc_conn(int on) * port. In host mode, controller will automatically send SOF. * Suspend will block the data on the port. */ -void fsl_otg_loc_sof(int on) +void fsl_otg_loc_sof(struct otg_fsm *fsm, int on) { u32 tmp; @@ -222,7 +222,7 @@ void fsl_otg_loc_sof(int on) } /* Start SRP pulsing by data-line pulsing, followed with v-bus pulsing. */ -void fsl_otg_start_pulse(void) +void fsl_otg_start_pulse(struct otg_fsm *fsm) { u32 tmp; @@ -235,7 +235,7 @@ void fsl_otg_start_pulse(void) fsl_otg_loc_conn(1); #endif - fsl_otg_add_timer(b_data_pulse_tmr); + fsl_otg_add_timer(fsm, b_data_pulse_tmr); } void b_data_pulse_end(unsigned long foo) @@ -252,14 +252,14 @@ void b_data_pulse_end(unsigned long foo) void fsl_otg_pulse_vbus(void) { srp_wait_done = 0; - fsl_otg_chrg_vbus(1); + fsl_otg_chrg_vbus(&fsl_otg_dev->fsm, 1); /* start the timer to end vbus charge */ - fsl_otg_add_timer(b_vbus_pulse_tmr); + fsl_otg_add_timer(&fsl_otg_dev->fsm, b_vbus_pulse_tmr); } void b_vbus_pulse_end(unsigned long foo) { - fsl_otg_chrg_vbus(0); + fsl_otg_chrg_vbus(&fsl_otg_dev->fsm, 0); /* * As USB3300 using the same a_sess_vld and b_sess_vld voltage @@ -267,7 +267,7 @@ void b_vbus_pulse_end(unsigned long foo) * residual voltage of vbus pulsing and A device pull up */ fsl_otg_dischrg_vbus(1); - fsl_otg_add_timer(b_srp_wait_tmr); + fsl_otg_add_timer(&fsl_otg_dev->fsm, b_srp_wait_tmr); } void b_srp_end(unsigned long foo) @@ -289,7 +289,7 @@ void a_wait_enum(unsigned long foo) { VDBG("a_wait_enum timeout\n"); if (!fsl_otg_dev->phy.otg->host->b_hnp_enable) - fsl_otg_add_timer(a_wait_enum_tmr); + fsl_otg_add_timer(&fsl_otg_dev->fsm, a_wait_enum_tmr); else otg_statemachine(&fsl_otg_dev->fsm); } @@ -375,8 +375,42 @@ void fsl_otg_uninit_timers(void) kfree(b_vbus_pulse_tmr); } +static struct fsl_otg_timer *fsl_otg_get_timer(enum otg_fsm_timer t) +{ + struct fsl_otg_timer *timer; + + /* REVISIT: use array of pointers to timers instead */ + switch (t) { + case A_WAIT_VRISE: + timer = a_wait_vrise_tmr; + break; + case A_WAIT_BCON: + timer = a_wait_vrise_tmr; + break; + case A_AIDL_BDIS: + timer = a_wait_vrise_tmr; + break; + case B_ASE0_BRST: + timer = a_wait_vrise_tmr; + break; + case B_SE0_SRP: + timer = a_wait_vrise_tmr; + break; + case B_SRP_FAIL: + timer = a_wait_vrise_tmr; + break; + case A_WAIT_ENUM: + timer = a_wait_vrise_tmr; + break; + default: + timer = NULL; + } + + return timer; +} + /* Add timer to timer list */ -void fsl_otg_add_timer(void *gtimer) +void fsl_otg_add_timer(struct otg_fsm *fsm, void *gtimer) { struct fsl_otg_timer *timer = gtimer; struct fsl_otg_timer *tmp_timer; @@ -394,8 +428,19 @@ void fsl_otg_add_timer(void *gtimer) list_add_tail(&timer->list, &active_timers); } +static void fsl_otg_fsm_add_timer(struct otg_fsm *fsm, enum otg_fsm_timer t) +{ + struct fsl_otg_timer *timer; + + timer = fsl_otg_get_timer(t); + if (!timer) + return; + + fsl_otg_add_timer(fsm, timer); +} + /* Remove timer from the timer list; clear timeout status */ -void fsl_otg_del_timer(void *gtimer) +void fsl_otg_del_timer(struct otg_fsm *fsm, void *gtimer) { struct fsl_otg_timer *timer = gtimer; struct fsl_otg_timer *tmp_timer, *del_tmp; @@ -405,6 +450,17 @@ void fsl_otg_del_timer(void *gtimer) list_del(&timer->list); } +static void fsl_otg_fsm_del_timer(struct otg_fsm *fsm, enum otg_fsm_timer t) +{ + struct fsl_otg_timer *timer; + + timer = fsl_otg_get_timer(t); + if (!timer) + return; + + fsl_otg_del_timer(fsm, timer); +} + /* * Reduce timer count by 1, and find timeout conditions. * Called by fsl_otg 1ms timer interrupt @@ -468,7 +524,7 @@ int fsl_otg_start_host(struct otg_fsm *fsm, int on) retval = dev->driver->pm->resume(dev); if (fsm->id) { /* default-b */ - fsl_otg_drv_vbus(1); + fsl_otg_drv_vbus(fsm, 1); /* * Workaround: b_host can't driver * vbus, but PP in PORTSC needs to @@ -493,7 +549,7 @@ int fsl_otg_start_host(struct otg_fsm *fsm, int on) retval = dev->driver->pm->suspend(dev); if (fsm->id) /* default-b */ - fsl_otg_drv_vbus(0); + fsl_otg_drv_vbus(fsm, 0); } otg_dev->host_working = 0; } @@ -757,8 +813,8 @@ static struct otg_fsm_ops fsl_otg_ops = { .loc_sof = fsl_otg_loc_sof, .start_pulse = fsl_otg_start_pulse, - .add_timer = fsl_otg_add_timer, - .del_timer = fsl_otg_del_timer, + .add_timer = fsl_otg_fsm_add_timer, + .del_timer = fsl_otg_fsm_del_timer, .start_host = fsl_otg_start_host, .start_gadget = fsl_otg_start_gadget, @@ -1011,7 +1067,7 @@ static int show_fsl_usb2_otg_state(struct device *dev, "b_bus_suspend: %d\n" "b_conn: %d\n" "b_se0_srp: %d\n" - "b_sess_end: %d\n" + "b_ssend_srp: %d\n" "b_sess_vld: %d\n" "id: %d\n", fsm->a_bus_req, @@ -1026,7 +1082,7 @@ static int show_fsl_usb2_otg_state(struct device *dev, fsm->b_bus_suspend, fsm->b_conn, fsm->b_se0_srp, - fsm->b_sess_end, + fsm->b_ssend_srp, fsm->b_sess_vld, fsm->id); size -= t; @@ -1057,7 +1113,7 @@ static long fsl_otg_ioctl(struct file *file, unsigned int cmd, break; case SET_A_SUSPEND_REQ: - fsl_otg_dev->fsm.a_suspend_req = arg; + fsl_otg_dev->fsm.a_suspend_req_inf = arg; break; case SET_A_BUS_DROP: diff --git a/drivers/usb/phy/phy-fsl-usb.h b/drivers/usb/phy/phy-fsl-usb.h index e1859b8ef567..7365170a2f23 100644 --- a/drivers/usb/phy/phy-fsl-usb.h +++ b/drivers/usb/phy/phy-fsl-usb.h @@ -401,6 +401,6 @@ struct fsl_otg_config { #define GET_A_BUS_REQ _IOR(OTG_IOCTL_MAGIC, 8, int) #define GET_B_BUS_REQ _IOR(OTG_IOCTL_MAGIC, 9, int) -void fsl_otg_add_timer(void *timer); -void fsl_otg_del_timer(void *timer); +void fsl_otg_add_timer(struct otg_fsm *fsm, void *timer); +void fsl_otg_del_timer(struct otg_fsm *fsm, void *timer); void fsl_otg_pulse_vbus(void); diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c index 7f4596606e18..329c2d2f8595 100644 --- a/drivers/usb/phy/phy-fsm-usb.c +++ b/drivers/usb/phy/phy-fsm-usb.c @@ -41,17 +41,17 @@ static int otg_set_protocol(struct otg_fsm *fsm, int protocol) fsm->protocol, protocol); /* stop old protocol */ if (fsm->protocol == PROTO_HOST) - ret = fsm->ops->start_host(fsm, 0); + ret = otg_start_host(fsm, 0); else if (fsm->protocol == PROTO_GADGET) - ret = fsm->ops->start_gadget(fsm, 0); + ret = otg_start_gadget(fsm, 0); if (ret) return ret; /* start new protocol */ if (protocol == PROTO_HOST) - ret = fsm->ops->start_host(fsm, 1); + ret = otg_start_host(fsm, 1); else if (protocol == PROTO_GADGET) - ret = fsm->ops->start_gadget(fsm, 1); + ret = otg_start_gadget(fsm, 1); if (ret) return ret; @@ -69,42 +69,50 @@ void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state) { switch (old_state) { case OTG_STATE_B_IDLE: - otg_del_timer(fsm, b_se0_srp_tmr); + otg_del_timer(fsm, B_SE0_SRP); fsm->b_se0_srp = 0; + fsm->adp_sns = 0; + fsm->adp_prb = 0; break; case OTG_STATE_B_SRP_INIT: + fsm->data_pulse = 0; fsm->b_srp_done = 0; break; case OTG_STATE_B_PERIPHERAL: break; case OTG_STATE_B_WAIT_ACON: - otg_del_timer(fsm, b_ase0_brst_tmr); + otg_del_timer(fsm, B_ASE0_BRST); fsm->b_ase0_brst_tmout = 0; break; case OTG_STATE_B_HOST: break; case OTG_STATE_A_IDLE: + fsm->adp_prb = 0; break; case OTG_STATE_A_WAIT_VRISE: - otg_del_timer(fsm, a_wait_vrise_tmr); + otg_del_timer(fsm, A_WAIT_VRISE); fsm->a_wait_vrise_tmout = 0; break; case OTG_STATE_A_WAIT_BCON: - otg_del_timer(fsm, a_wait_bcon_tmr); + otg_del_timer(fsm, A_WAIT_BCON); fsm->a_wait_bcon_tmout = 0; break; case OTG_STATE_A_HOST: - otg_del_timer(fsm, a_wait_enum_tmr); + otg_del_timer(fsm, A_WAIT_ENUM); break; case OTG_STATE_A_SUSPEND: - otg_del_timer(fsm, a_aidl_bdis_tmr); + otg_del_timer(fsm, A_AIDL_BDIS); fsm->a_aidl_bdis_tmout = 0; - fsm->a_suspend_req = 0; + fsm->a_suspend_req_inf = 0; break; case OTG_STATE_A_PERIPHERAL: + otg_del_timer(fsm, A_BIDL_ADIS); + fsm->a_bidl_adis_tmout = 0; break; case OTG_STATE_A_WAIT_VFALL: - otg_del_timer(fsm, a_wait_vrise_tmr); + otg_del_timer(fsm, A_WAIT_VFALL); + fsm->a_wait_vfall_tmout = 0; + otg_del_timer(fsm, A_WAIT_VRISE); break; case OTG_STATE_A_VBUS_ERR: break; @@ -127,14 +135,19 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) otg_chrg_vbus(fsm, 0); otg_loc_conn(fsm, 0); otg_loc_sof(fsm, 0); + /* + * Driver is responsible for starting ADP probing + * if ADP sensing times out. + */ + otg_start_adp_sns(fsm); otg_set_protocol(fsm, PROTO_UNDEF); - otg_add_timer(fsm, b_se0_srp_tmr); + otg_add_timer(fsm, B_SE0_SRP); break; case OTG_STATE_B_SRP_INIT: otg_start_pulse(fsm); otg_loc_sof(fsm, 0); otg_set_protocol(fsm, PROTO_UNDEF); - otg_add_timer(fsm, b_srp_fail_tmr); + otg_add_timer(fsm, B_SRP_FAIL); break; case OTG_STATE_B_PERIPHERAL: otg_chrg_vbus(fsm, 0); @@ -147,7 +160,7 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) otg_loc_conn(fsm, 0); otg_loc_sof(fsm, 0); otg_set_protocol(fsm, PROTO_HOST); - otg_add_timer(fsm, b_ase0_brst_tmr); + otg_add_timer(fsm, B_ASE0_BRST); fsm->a_bus_suspend = 0; break; case OTG_STATE_B_HOST: @@ -163,6 +176,7 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) otg_chrg_vbus(fsm, 0); otg_loc_conn(fsm, 0); otg_loc_sof(fsm, 0); + otg_start_adp_prb(fsm); otg_set_protocol(fsm, PROTO_HOST); break; case OTG_STATE_A_WAIT_VRISE: @@ -170,14 +184,14 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) otg_loc_conn(fsm, 0); otg_loc_sof(fsm, 0); otg_set_protocol(fsm, PROTO_HOST); - otg_add_timer(fsm, a_wait_vrise_tmr); + otg_add_timer(fsm, A_WAIT_VRISE); break; case OTG_STATE_A_WAIT_BCON: otg_drv_vbus(fsm, 1); otg_loc_conn(fsm, 0); otg_loc_sof(fsm, 0); otg_set_protocol(fsm, PROTO_HOST); - otg_add_timer(fsm, a_wait_bcon_tmr); + otg_add_timer(fsm, A_WAIT_BCON); break; case OTG_STATE_A_HOST: otg_drv_vbus(fsm, 1); @@ -188,15 +202,15 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) * When HNP is triggered while a_bus_req = 0, a_host will * suspend too fast to complete a_set_b_hnp_en */ - if (!fsm->a_bus_req || fsm->a_suspend_req) - otg_add_timer(fsm, a_wait_enum_tmr); + if (!fsm->a_bus_req || fsm->a_suspend_req_inf) + otg_add_timer(fsm, A_WAIT_ENUM); break; case OTG_STATE_A_SUSPEND: otg_drv_vbus(fsm, 1); otg_loc_conn(fsm, 0); otg_loc_sof(fsm, 0); otg_set_protocol(fsm, PROTO_HOST); - otg_add_timer(fsm, a_aidl_bdis_tmr); + otg_add_timer(fsm, A_AIDL_BDIS); break; case OTG_STATE_A_PERIPHERAL: @@ -204,12 +218,14 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) otg_loc_sof(fsm, 0); otg_set_protocol(fsm, PROTO_GADGET); otg_drv_vbus(fsm, 1); + otg_add_timer(fsm, A_BIDL_ADIS); break; case OTG_STATE_A_WAIT_VFALL: otg_drv_vbus(fsm, 0); otg_loc_conn(fsm, 0); otg_loc_sof(fsm, 0); otg_set_protocol(fsm, PROTO_HOST); + otg_add_timer(fsm, A_WAIT_VFALL); break; case OTG_STATE_A_VBUS_ERR: otg_drv_vbus(fsm, 0); @@ -250,7 +266,8 @@ int otg_statemachine(struct otg_fsm *fsm) otg_set_state(fsm, OTG_STATE_A_IDLE); else if (fsm->b_sess_vld && fsm->otg->gadget) otg_set_state(fsm, OTG_STATE_B_PERIPHERAL); - else if (fsm->b_bus_req && fsm->b_sess_end && fsm->b_se0_srp) + else if ((fsm->b_bus_req || fsm->adp_change || fsm->power_up) && + fsm->b_ssend_srp && fsm->b_se0_srp) otg_set_state(fsm, OTG_STATE_B_SRP_INIT); break; case OTG_STATE_B_SRP_INIT: @@ -277,13 +294,14 @@ int otg_statemachine(struct otg_fsm *fsm) case OTG_STATE_B_HOST: if (!fsm->id || !fsm->b_sess_vld) otg_set_state(fsm, OTG_STATE_B_IDLE); - else if (!fsm->b_bus_req || !fsm->a_conn) + else if (!fsm->b_bus_req || !fsm->a_conn || fsm->test_device) otg_set_state(fsm, OTG_STATE_B_PERIPHERAL); break; case OTG_STATE_A_IDLE: if (fsm->id) otg_set_state(fsm, OTG_STATE_B_IDLE); - else if (!fsm->a_bus_drop && (fsm->a_bus_req || fsm->a_srp_det)) + else if (!fsm->a_bus_drop && (fsm->a_bus_req || + fsm->a_srp_det || fsm->adp_change || fsm->power_up)) otg_set_state(fsm, OTG_STATE_A_WAIT_VRISE); break; case OTG_STATE_A_WAIT_VRISE: @@ -301,7 +319,7 @@ int otg_statemachine(struct otg_fsm *fsm) otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL); break; case OTG_STATE_A_HOST: - if ((!fsm->a_bus_req || fsm->a_suspend_req) && + if ((!fsm->a_bus_req || fsm->a_suspend_req_inf) && fsm->otg->host->b_hnp_enable) otg_set_state(fsm, OTG_STATE_A_SUSPEND); else if (fsm->id || !fsm->b_conn || fsm->a_bus_drop) @@ -324,14 +342,14 @@ int otg_statemachine(struct otg_fsm *fsm) case OTG_STATE_A_PERIPHERAL: if (fsm->id || fsm->a_bus_drop) otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL); - else if (fsm->b_bus_suspend) + else if (fsm->a_bidl_adis_tmout || fsm->b_bus_suspend) otg_set_state(fsm, OTG_STATE_A_WAIT_BCON); else if (!fsm->a_vbus_vld) otg_set_state(fsm, OTG_STATE_A_VBUS_ERR); break; case OTG_STATE_A_WAIT_VFALL: - if (fsm->id || fsm->a_bus_req || (!fsm->a_sess_vld && - !fsm->b_conn)) + if (fsm->a_wait_vfall_tmout || fsm->id || fsm->a_bus_req || + (!fsm->a_sess_vld && !fsm->b_conn)) otg_set_state(fsm, OTG_STATE_A_IDLE); break; case OTG_STATE_A_VBUS_ERR: diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h index fbe586206f33..7441b46a27f1 100644 --- a/drivers/usb/phy/phy-fsm-usb.h +++ b/drivers/usb/phy/phy-fsm-usb.h @@ -34,45 +34,76 @@ #define PROTO_HOST (1) #define PROTO_GADGET (2) +enum otg_fsm_timer { + /* Standard OTG timers */ + A_WAIT_VRISE, + A_WAIT_VFALL, + A_WAIT_BCON, + A_AIDL_BDIS, + B_ASE0_BRST, + A_BIDL_ADIS, + + /* Auxiliary timers */ + B_SE0_SRP, + B_SRP_FAIL, + A_WAIT_ENUM, + + NUM_OTG_FSM_TIMERS, +}; + /* OTG state machine according to the OTG spec */ struct otg_fsm { /* Input */ + int id; + int adp_change; + int power_up; + int test_device; + int a_bus_drop; + int a_bus_req; + int a_srp_det; + int a_vbus_vld; + int b_conn; int a_bus_resume; int a_bus_suspend; int a_conn; + int b_bus_req; + int b_se0_srp; + int b_ssend_srp; + int b_sess_vld; + /* Auxilary inputs */ int a_sess_vld; - int a_srp_det; - int a_vbus_vld; int b_bus_resume; int b_bus_suspend; - int b_conn; - int b_se0_srp; - int b_sess_end; - int b_sess_vld; - int id; + + /* Output */ + int data_pulse; + int drv_vbus; + int loc_conn; + int loc_sof; + int adp_prb; + int adp_sns; /* Internal variables */ int a_set_b_hnp_en; int b_srp_done; int b_hnp_enable; + int a_clr_err; + + /* Informative variables */ + int a_bus_drop_inf; + int a_bus_req_inf; + int a_clr_err_inf; + int b_bus_req_inf; + /* Auxilary informative variables */ + int a_suspend_req_inf; /* Timeout indicator for timers */ int a_wait_vrise_tmout; + int a_wait_vfall_tmout; int a_wait_bcon_tmout; int a_aidl_bdis_tmout; int b_ase0_brst_tmout; - - /* Informative variables */ - int a_bus_drop; - int a_bus_req; - int a_clr_err; - int a_suspend_req; - int b_bus_req; - - /* Output */ - int drv_vbus; - int loc_conn; - int loc_sof; + int a_bidl_adis_tmout; struct otg_fsm_ops *ops; struct usb_otg *otg; @@ -83,65 +114,123 @@ struct otg_fsm { }; struct otg_fsm_ops { - void (*chrg_vbus)(int on); - void (*drv_vbus)(int on); - void (*loc_conn)(int on); - void (*loc_sof)(int on); - void (*start_pulse)(void); - void (*add_timer)(void *timer); - void (*del_timer)(void *timer); + void (*chrg_vbus)(struct otg_fsm *fsm, int on); + void (*drv_vbus)(struct otg_fsm *fsm, int on); + void (*loc_conn)(struct otg_fsm *fsm, int on); + void (*loc_sof)(struct otg_fsm *fsm, int on); + void (*start_pulse)(struct otg_fsm *fsm); + void (*start_adp_prb)(struct otg_fsm *fsm); + void (*start_adp_sns)(struct otg_fsm *fsm); + void (*add_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer); + void (*del_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer); int (*start_host)(struct otg_fsm *fsm, int on); int (*start_gadget)(struct otg_fsm *fsm, int on); }; -static inline void otg_chrg_vbus(struct otg_fsm *fsm, int on) +static inline int otg_chrg_vbus(struct otg_fsm *fsm, int on) { - fsm->ops->chrg_vbus(on); + if (!fsm->ops->chrg_vbus) + return -EOPNOTSUPP; + fsm->ops->chrg_vbus(fsm, on); + return 0; } -static inline void otg_drv_vbus(struct otg_fsm *fsm, int on) +static inline int otg_drv_vbus(struct otg_fsm *fsm, int on) { + if (!fsm->ops->drv_vbus) + return -EOPNOTSUPP; if (fsm->drv_vbus != on) { fsm->drv_vbus = on; - fsm->ops->drv_vbus(on); + fsm->ops->drv_vbus(fsm, on); } + return 0; } -static inline void otg_loc_conn(struct otg_fsm *fsm, int on) +static inline int otg_loc_conn(struct otg_fsm *fsm, int on) { + if (!fsm->ops->loc_conn) + return -EOPNOTSUPP; if (fsm->loc_conn != on) { fsm->loc_conn = on; - fsm->ops->loc_conn(on); + fsm->ops->loc_conn(fsm, on); } + return 0; } -static inline void otg_loc_sof(struct otg_fsm *fsm, int on) +static inline int otg_loc_sof(struct otg_fsm *fsm, int on) { + if (!fsm->ops->loc_sof) + return -EOPNOTSUPP; if (fsm->loc_sof != on) { fsm->loc_sof = on; - fsm->ops->loc_sof(on); + fsm->ops->loc_sof(fsm, on); + } + return 0; +} + +static inline int otg_start_pulse(struct otg_fsm *fsm) +{ + if (!fsm->ops->start_pulse) + return -EOPNOTSUPP; + if (!fsm->data_pulse) { + fsm->data_pulse = 1; + fsm->ops->start_pulse(fsm); } + return 0; } -static inline void otg_start_pulse(struct otg_fsm *fsm) +static inline int otg_start_adp_prb(struct otg_fsm *fsm) { - fsm->ops->start_pulse(); + if (!fsm->ops->start_adp_prb) + return -EOPNOTSUPP; + if (!fsm->adp_prb) { + fsm->adp_sns = 0; + fsm->adp_prb = 1; + fsm->ops->start_adp_prb(fsm); + } + return 0; } -static inline void otg_add_timer(struct otg_fsm *fsm, void *timer) +static inline int otg_start_adp_sns(struct otg_fsm *fsm) { - fsm->ops->add_timer(timer); + if (!fsm->ops->start_adp_sns) + return -EOPNOTSUPP; + if (!fsm->adp_sns) { + fsm->adp_sns = 1; + fsm->ops->start_adp_sns(fsm); + } + return 0; } -static inline void otg_del_timer(struct otg_fsm *fsm, void *timer) +static inline int otg_add_timer(struct otg_fsm *fsm, enum otg_fsm_timer timer) { - fsm->ops->del_timer(timer); + if (!fsm->ops->add_timer) + return -EOPNOTSUPP; + fsm->ops->add_timer(fsm, timer); + return 0; } -int otg_statemachine(struct otg_fsm *fsm); +static inline int otg_del_timer(struct otg_fsm *fsm, enum otg_fsm_timer timer) +{ + if (!fsm->ops->del_timer) + return -EOPNOTSUPP; + fsm->ops->del_timer(fsm, timer); + return 0; +} -/* Defined by device specific driver, for different timer implementation */ -extern struct fsl_otg_timer *a_wait_vrise_tmr, *a_wait_bcon_tmr, - *a_aidl_bdis_tmr, *b_ase0_brst_tmr, *b_se0_srp_tmr, *b_srp_fail_tmr, - *a_wait_enum_tmr; +static inline int otg_start_host(struct otg_fsm *fsm, int on) +{ + if (!fsm->ops->start_host) + return -EOPNOTSUPP; + return fsm->ops->start_host(fsm, on); +} + +static inline int otg_start_gadget(struct otg_fsm *fsm, int on) +{ + if (!fsm->ops->start_gadget) + return -EOPNOTSUPP; + return fsm->ops->start_gadget(fsm, on); +} + +int otg_statemachine(struct otg_fsm *fsm); diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c index efe59f3f7fda..fce3a9e9bb5d 100644 --- a/drivers/usb/phy/phy-generic.c +++ b/drivers/usb/phy/phy-generic.c @@ -35,6 +35,9 @@ #include <linux/clk.h> #include <linux/regulator/consumer.h> #include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/gpio.h> +#include <linux/delay.h> #include "phy-generic.h" @@ -64,6 +67,23 @@ static int nop_set_suspend(struct usb_phy *x, int suspend) return 0; } +static void nop_reset_set(struct usb_phy_gen_xceiv *nop, int asserted) +{ + int value; + + if (!gpio_is_valid(nop->gpio_reset)) + return; + + value = asserted; + if (nop->reset_active_low) + value = !value; + + gpio_set_value_cansleep(nop->gpio_reset, value); + + if (!asserted) + usleep_range(10000, 20000); +} + int usb_gen_phy_init(struct usb_phy *phy) { struct usb_phy_gen_xceiv *nop = dev_get_drvdata(phy->dev); @@ -74,13 +94,10 @@ int usb_gen_phy_init(struct usb_phy *phy) } if (!IS_ERR(nop->clk)) - clk_enable(nop->clk); + clk_prepare_enable(nop->clk); - if (!IS_ERR(nop->reset)) { - /* De-assert RESET */ - if (regulator_enable(nop->reset)) - dev_err(phy->dev, "Failed to de-assert reset\n"); - } + /* De-assert RESET */ + nop_reset_set(nop, 0); return 0; } @@ -90,14 +107,11 @@ void usb_gen_phy_shutdown(struct usb_phy *phy) { struct usb_phy_gen_xceiv *nop = dev_get_drvdata(phy->dev); - if (!IS_ERR(nop->reset)) { - /* Assert RESET */ - if (regulator_disable(nop->reset)) - dev_err(phy->dev, "Failed to assert reset\n"); - } + /* Assert RESET */ + nop_reset_set(nop, 1); if (!IS_ERR(nop->clk)) - clk_disable(nop->clk); + clk_disable_unprepare(nop->clk); if (!IS_ERR(nop->vcc)) { if (regulator_disable(nop->vcc)) @@ -136,8 +150,7 @@ static int nop_set_host(struct usb_otg *otg, struct usb_bus *host) } int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop, - enum usb_phy_type type, u32 clk_rate, bool needs_vcc, - bool needs_reset) + enum usb_phy_type type, u32 clk_rate, bool needs_vcc) { int err; @@ -160,14 +173,6 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop, } } - if (!IS_ERR(nop->clk)) { - err = clk_prepare(nop->clk); - if (err) { - dev_err(dev, "Error preparing clock\n"); - return err; - } - } - nop->vcc = devm_regulator_get(dev, "vcc"); if (IS_ERR(nop->vcc)) { dev_dbg(dev, "Error getting vcc regulator: %ld\n", @@ -176,12 +181,22 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop, return -EPROBE_DEFER; } - nop->reset = devm_regulator_get(dev, "reset"); - if (IS_ERR(nop->reset)) { - dev_dbg(dev, "Error getting reset regulator: %ld\n", - PTR_ERR(nop->reset)); - if (needs_reset) - return -EPROBE_DEFER; + if (gpio_is_valid(nop->gpio_reset)) { + unsigned long gpio_flags; + + /* Assert RESET */ + if (nop->reset_active_low) + gpio_flags = GPIOF_OUT_INIT_LOW; + else + gpio_flags = GPIOF_OUT_INIT_HIGH; + + err = devm_gpio_request_one(dev, nop->gpio_reset, + gpio_flags, dev_name(dev)); + if (err) { + dev_err(dev, "Error requesting RESET GPIO %d\n", + nop->gpio_reset); + return err; + } } nop->dev = dev; @@ -200,13 +215,6 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop, } EXPORT_SYMBOL_GPL(usb_phy_gen_create_phy); -void usb_phy_gen_cleanup_phy(struct usb_phy_gen_xceiv *nop) -{ - if (!IS_ERR(nop->clk)) - clk_unprepare(nop->clk); -} -EXPORT_SYMBOL_GPL(usb_phy_gen_cleanup_phy); - static int usb_phy_gen_xceiv_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -217,31 +225,36 @@ static int usb_phy_gen_xceiv_probe(struct platform_device *pdev) int err; u32 clk_rate = 0; bool needs_vcc = false; - bool needs_reset = false; + + nop = devm_kzalloc(dev, sizeof(*nop), GFP_KERNEL); + if (!nop) + return -ENOMEM; + + nop->reset_active_low = true; /* default behaviour */ if (dev->of_node) { struct device_node *node = dev->of_node; + enum of_gpio_flags flags; if (of_property_read_u32(node, "clock-frequency", &clk_rate)) clk_rate = 0; needs_vcc = of_property_read_bool(node, "vcc-supply"); - needs_reset = of_property_read_bool(node, "reset-supply"); + nop->gpio_reset = of_get_named_gpio_flags(node, "reset-gpios", + 0, &flags); + if (nop->gpio_reset == -EPROBE_DEFER) + return -EPROBE_DEFER; + + nop->reset_active_low = flags & OF_GPIO_ACTIVE_LOW; } else if (pdata) { type = pdata->type; clk_rate = pdata->clk_rate; needs_vcc = pdata->needs_vcc; - needs_reset = pdata->needs_reset; + nop->gpio_reset = pdata->gpio_reset; } - nop = devm_kzalloc(dev, sizeof(*nop), GFP_KERNEL); - if (!nop) - return -ENOMEM; - - - err = usb_phy_gen_create_phy(dev, nop, type, clk_rate, needs_vcc, - needs_reset); + err = usb_phy_gen_create_phy(dev, nop, type, clk_rate, needs_vcc); if (err) return err; @@ -252,15 +265,13 @@ static int usb_phy_gen_xceiv_probe(struct platform_device *pdev) if (err) { dev_err(&pdev->dev, "can't register transceiver, err: %d\n", err); - goto err_add; + return err; } platform_set_drvdata(pdev, nop); return 0; -err_add: - usb_phy_gen_cleanup_phy(nop); return err; } @@ -268,7 +279,6 @@ static int usb_phy_gen_xceiv_remove(struct platform_device *pdev) { struct usb_phy_gen_xceiv *nop = platform_get_drvdata(pdev); - usb_phy_gen_cleanup_phy(nop); usb_remove_phy(&nop->phy); return 0; diff --git a/drivers/usb/phy/phy-generic.h b/drivers/usb/phy/phy-generic.h index 61687d5a965b..d2a220d81734 100644 --- a/drivers/usb/phy/phy-generic.h +++ b/drivers/usb/phy/phy-generic.h @@ -6,15 +6,14 @@ struct usb_phy_gen_xceiv { struct device *dev; struct clk *clk; struct regulator *vcc; - struct regulator *reset; + int gpio_reset; + bool reset_active_low; }; int usb_gen_phy_init(struct usb_phy *phy); void usb_gen_phy_shutdown(struct usb_phy *phy); int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop, - enum usb_phy_type type, u32 clk_rate, bool needs_vcc, - bool needs_reset); -void usb_phy_gen_cleanup_phy(struct usb_phy_gen_xceiv *nop); + enum usb_phy_type type, u32 clk_rate, bool needs_vcc); #endif diff --git a/drivers/usb/phy/phy-omap-control.c b/drivers/usb/phy/phy-omap-control.c index a4dda8e12562..09c5ace1edd8 100644 --- a/drivers/usb/phy/phy-omap-control.c +++ b/drivers/usb/phy/phy-omap-control.c @@ -20,87 +20,77 @@ #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/of.h> +#include <linux/of_device.h> #include <linux/err.h> #include <linux/io.h> #include <linux/clk.h> #include <linux/usb/omap_control_usb.h> -static struct omap_control_usb *control_usb; - -/** - * omap_get_control_dev - returns the device pointer for this control device - * - * This API should be called to get the device pointer for this control - * module device. This device pointer should be used for called other - * exported API's in this driver. - * - * To be used by PHY driver and glue driver. - */ -struct device *omap_get_control_dev(void) -{ - if (!control_usb) - return ERR_PTR(-ENODEV); - - return control_usb->dev; -} -EXPORT_SYMBOL_GPL(omap_get_control_dev); - /** - * omap_control_usb3_phy_power - power on/off the serializer using control - * module + * omap_control_usb_phy_power - power on/off the phy using control module reg * @dev: the control module device - * @on: 0 to off and 1 to on based on powering on or off the PHY - * - * usb3 PHY driver should call this API to power on or off the PHY. + * @on: 0 or 1, based on powering on or off the PHY */ -void omap_control_usb3_phy_power(struct device *dev, bool on) +void omap_control_usb_phy_power(struct device *dev, int on) { u32 val; unsigned long rate; - struct omap_control_usb *control_usb = dev_get_drvdata(dev); + struct omap_control_usb *control_usb; - if (control_usb->type != OMAP_CTRL_DEV_TYPE2) + if (IS_ERR(dev) || !dev) { + pr_err("%s: invalid device\n", __func__); return; + } - rate = clk_get_rate(control_usb->sys_clk); - rate = rate/1000000; - - val = readl(control_usb->phy_power); - - if (on) { - val &= ~(OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK | - OMAP_CTRL_USB_PWRCTL_CLK_FREQ_MASK); - val |= OMAP_CTRL_USB3_PHY_TX_RX_POWERON << - OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT; - val |= rate << OMAP_CTRL_USB_PWRCTL_CLK_FREQ_SHIFT; - } else { - val &= ~OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK; - val |= OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF << - OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT; + control_usb = dev_get_drvdata(dev); + if (!control_usb) { + dev_err(dev, "%s: invalid control usb device\n", __func__); + return; } - writel(val, control_usb->phy_power); -} -EXPORT_SYMBOL_GPL(omap_control_usb3_phy_power); + if (control_usb->type == OMAP_CTRL_TYPE_OTGHS) + return; -/** - * omap_control_usb_phy_power - power on/off the phy using control module reg - * @dev: the control module device - * @on: 0 or 1, based on powering on or off the PHY - */ -void omap_control_usb_phy_power(struct device *dev, int on) -{ - u32 val; - struct omap_control_usb *control_usb = dev_get_drvdata(dev); + val = readl(control_usb->power); - val = readl(control_usb->dev_conf); + switch (control_usb->type) { + case OMAP_CTRL_TYPE_USB2: + if (on) + val &= ~OMAP_CTRL_DEV_PHY_PD; + else + val |= OMAP_CTRL_DEV_PHY_PD; + break; - if (on) - val &= ~OMAP_CTRL_DEV_PHY_PD; - else - val |= OMAP_CTRL_DEV_PHY_PD; + case OMAP_CTRL_TYPE_PIPE3: + rate = clk_get_rate(control_usb->sys_clk); + rate = rate/1000000; + + if (on) { + val &= ~(OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK | + OMAP_CTRL_USB_PWRCTL_CLK_FREQ_MASK); + val |= OMAP_CTRL_USB3_PHY_TX_RX_POWERON << + OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT; + val |= rate << OMAP_CTRL_USB_PWRCTL_CLK_FREQ_SHIFT; + } else { + val &= ~OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK; + val |= OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF << + OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT; + } + break; - writel(val, control_usb->dev_conf); + case OMAP_CTRL_TYPE_DRA7USB2: + if (on) + val &= ~OMAP_CTRL_USB2_PHY_PD; + else + val |= OMAP_CTRL_USB2_PHY_PD; + break; + default: + dev_err(dev, "%s: type %d not recognized\n", + __func__, control_usb->type); + break; + } + + writel(val, control_usb->power); } EXPORT_SYMBOL_GPL(omap_control_usb_phy_power); @@ -172,11 +162,19 @@ void omap_control_usb_set_mode(struct device *dev, { struct omap_control_usb *ctrl_usb; - if (IS_ERR(dev) || control_usb->type != OMAP_CTRL_DEV_TYPE1) + if (IS_ERR(dev) || !dev) return; ctrl_usb = dev_get_drvdata(dev); + if (!ctrl_usb) { + dev_err(dev, "Invalid control usb device\n"); + return; + } + + if (ctrl_usb->type != OMAP_CTRL_TYPE_OTGHS) + return; + switch (mode) { case USB_MODE_HOST: omap_control_usb_host_mode(ctrl_usb); @@ -193,12 +191,46 @@ void omap_control_usb_set_mode(struct device *dev, } EXPORT_SYMBOL_GPL(omap_control_usb_set_mode); +#ifdef CONFIG_OF + +static const enum omap_control_usb_type otghs_data = OMAP_CTRL_TYPE_OTGHS; +static const enum omap_control_usb_type usb2_data = OMAP_CTRL_TYPE_USB2; +static const enum omap_control_usb_type pipe3_data = OMAP_CTRL_TYPE_PIPE3; +static const enum omap_control_usb_type dra7usb2_data = OMAP_CTRL_TYPE_DRA7USB2; + +static const struct of_device_id omap_control_usb_id_table[] = { + { + .compatible = "ti,control-phy-otghs", + .data = &otghs_data, + }, + { + .compatible = "ti,control-phy-usb2", + .data = &usb2_data, + }, + { + .compatible = "ti,control-phy-pipe3", + .data = &pipe3_data, + }, + { + .compatible = "ti,control-phy-dra7usb2", + .data = &dra7usb2_data, + }, + {}, +}; +MODULE_DEVICE_TABLE(of, omap_control_usb_id_table); +#endif + + static int omap_control_usb_probe(struct platform_device *pdev) { struct resource *res; - struct device_node *np = pdev->dev.of_node; - struct omap_control_usb_platform_data *pdata = - dev_get_platdata(&pdev->dev); + const struct of_device_id *of_id; + struct omap_control_usb *control_usb; + + of_id = of_match_device(of_match_ptr(omap_control_usb_id_table), + &pdev->dev); + if (!of_id) + return -EINVAL; control_usb = devm_kzalloc(&pdev->dev, sizeof(*control_usb), GFP_KERNEL); @@ -207,40 +239,27 @@ static int omap_control_usb_probe(struct platform_device *pdev) return -ENOMEM; } - if (np) { - of_property_read_u32(np, "ti,type", &control_usb->type); - } else if (pdata) { - control_usb->type = pdata->type; - } else { - dev_err(&pdev->dev, "no pdata present\n"); - return -EINVAL; - } - - control_usb->dev = &pdev->dev; - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "control_dev_conf"); - control_usb->dev_conf = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(control_usb->dev_conf)) - return PTR_ERR(control_usb->dev_conf); + control_usb->dev = &pdev->dev; + control_usb->type = *(enum omap_control_usb_type *)of_id->data; - if (control_usb->type == OMAP_CTRL_DEV_TYPE1) { + if (control_usb->type == OMAP_CTRL_TYPE_OTGHS) { res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "otghs_control"); control_usb->otghs_control = devm_ioremap_resource( &pdev->dev, res); if (IS_ERR(control_usb->otghs_control)) return PTR_ERR(control_usb->otghs_control); - } - - if (control_usb->type == OMAP_CTRL_DEV_TYPE2) { + } else { res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "phy_power_usb"); - control_usb->phy_power = devm_ioremap_resource( - &pdev->dev, res); - if (IS_ERR(control_usb->phy_power)) - return PTR_ERR(control_usb->phy_power); + "power"); + control_usb->power = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(control_usb->power)) { + dev_err(&pdev->dev, "Couldn't get power register\n"); + return PTR_ERR(control_usb->power); + } + } + if (control_usb->type == OMAP_CTRL_TYPE_PIPE3) { control_usb->sys_clk = devm_clk_get(control_usb->dev, "sys_clkin"); if (IS_ERR(control_usb->sys_clk)) { @@ -249,20 +268,11 @@ static int omap_control_usb_probe(struct platform_device *pdev) } } - dev_set_drvdata(control_usb->dev, control_usb); return 0; } -#ifdef CONFIG_OF -static const struct of_device_id omap_control_usb_id_table[] = { - { .compatible = "ti,omap-control-usb" }, - {} -}; -MODULE_DEVICE_TABLE(of, omap_control_usb_id_table); -#endif - static struct platform_driver omap_control_usb_driver = { .probe = omap_control_usb_probe, .driver = { diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c index 4e8a0405f956..0c6ba29bdddd 100644 --- a/drivers/usb/phy/phy-omap-usb3.c +++ b/drivers/usb/phy/phy-omap-usb3.c @@ -26,6 +26,7 @@ #include <linux/pm_runtime.h> #include <linux/delay.h> #include <linux/usb/omap_control_usb.h> +#include <linux/of_platform.h> #define PLL_STATUS 0x00000004 #define PLL_GO 0x00000008 @@ -100,7 +101,7 @@ static int omap_usb3_suspend(struct usb_phy *x, int suspend) udelay(1); } while (--timeout); - omap_control_usb3_phy_power(phy->control_dev, 0); + omap_control_usb_phy_power(phy->control_dev, 0); phy->is_suspended = 1; } else if (!suspend && phy->is_suspended) { @@ -189,15 +190,21 @@ static int omap_usb3_init(struct usb_phy *x) if (ret) return ret; - omap_control_usb3_phy_power(phy->control_dev, 1); + omap_control_usb_phy_power(phy->control_dev, 1); return 0; } static int omap_usb3_probe(struct platform_device *pdev) { - struct omap_usb *phy; - struct resource *res; + struct omap_usb *phy; + struct resource *res; + struct device_node *node = pdev->dev.of_node; + struct device_node *control_node; + struct platform_device *control_pdev; + + if (!node) + return -EINVAL; phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); if (!phy) { @@ -239,13 +246,20 @@ static int omap_usb3_probe(struct platform_device *pdev) return -EINVAL; } - phy->control_dev = omap_get_control_dev(); - if (IS_ERR(phy->control_dev)) { - dev_dbg(&pdev->dev, "Failed to get control device\n"); - return -ENODEV; + control_node = of_parse_phandle(node, "ctrl-module", 0); + if (!control_node) { + dev_err(&pdev->dev, "Failed to get control device phandle\n"); + return -EINVAL; } + control_pdev = of_find_device_by_node(control_node); + if (!control_pdev) { + dev_err(&pdev->dev, "Failed to get control device\n"); + return -EINVAL; + } + + phy->control_dev = &control_pdev->dev; - omap_control_usb3_phy_power(phy->control_dev, 0); + omap_control_usb_phy_power(phy->control_dev, 0); usb_add_phy_dev(&phy->phy); platform_set_drvdata(pdev, phy); diff --git a/drivers/usb/phy/phy-rcar-gen2-usb.c b/drivers/usb/phy/phy-rcar-gen2-usb.c new file mode 100644 index 000000000000..a99a6953f11c --- /dev/null +++ b/drivers/usb/phy/phy-rcar-gen2-usb.c @@ -0,0 +1,248 @@ +/* + * Renesas R-Car Gen2 USB phy driver + * + * Copyright (C) 2013 Renesas Solutions Corp. + * Copyright (C) 2013 Cogent Embedded, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/platform_data/usb-rcar-gen2-phy.h> +#include <linux/platform_device.h> +#include <linux/spinlock.h> +#include <linux/usb/otg.h> + +struct rcar_gen2_usb_phy_priv { + struct usb_phy phy; + void __iomem *base; + struct clk *clk; + spinlock_t lock; + int usecount; + u32 ugctrl2; +}; + +#define usb_phy_to_priv(p) container_of(p, struct rcar_gen2_usb_phy_priv, phy) + +/* Low Power Status register */ +#define USBHS_LPSTS_REG 0x02 +#define USBHS_LPSTS_SUSPM (1 << 14) + +/* USB General control register */ +#define USBHS_UGCTRL_REG 0x80 +#define USBHS_UGCTRL_CONNECT (1 << 2) +#define USBHS_UGCTRL_PLLRESET (1 << 0) + +/* USB General control register 2 */ +#define USBHS_UGCTRL2_REG 0x84 +#define USBHS_UGCTRL2_USB0_PCI (1 << 4) +#define USBHS_UGCTRL2_USB0_HS (3 << 4) +#define USBHS_UGCTRL2_USB2_PCI (0 << 31) +#define USBHS_UGCTRL2_USB2_SS (1 << 31) + +/* USB General status register */ +#define USBHS_UGSTS_REG 0x88 +#define USBHS_UGSTS_LOCK (3 << 8) + +/* Enable USBHS internal phy */ +static int __rcar_gen2_usbhs_phy_enable(void __iomem *base) +{ + u32 val; + int i; + + /* USBHS PHY power on */ + val = ioread32(base + USBHS_UGCTRL_REG); + val &= ~USBHS_UGCTRL_PLLRESET; + iowrite32(val, base + USBHS_UGCTRL_REG); + + val = ioread16(base + USBHS_LPSTS_REG); + val |= USBHS_LPSTS_SUSPM; + iowrite16(val, base + USBHS_LPSTS_REG); + + for (i = 0; i < 20; i++) { + val = ioread32(base + USBHS_UGSTS_REG); + if ((val & USBHS_UGSTS_LOCK) == USBHS_UGSTS_LOCK) { + val = ioread32(base + USBHS_UGCTRL_REG); + val |= USBHS_UGCTRL_CONNECT; + iowrite32(val, base + USBHS_UGCTRL_REG); + return 0; + } + udelay(1); + } + + /* Timed out waiting for the PLL lock */ + return -ETIMEDOUT; +} + +/* Disable USBHS internal phy */ +static int __rcar_gen2_usbhs_phy_disable(void __iomem *base) +{ + u32 val; + + /* USBHS PHY power off */ + val = ioread32(base + USBHS_UGCTRL_REG); + val &= ~USBHS_UGCTRL_CONNECT; + iowrite32(val, base + USBHS_UGCTRL_REG); + + val = ioread16(base + USBHS_LPSTS_REG); + val &= ~USBHS_LPSTS_SUSPM; + iowrite16(val, base + USBHS_LPSTS_REG); + + val = ioread32(base + USBHS_UGCTRL_REG); + val |= USBHS_UGCTRL_PLLRESET; + iowrite32(val, base + USBHS_UGCTRL_REG); + return 0; +} + +/* Setup USB channels */ +static void __rcar_gen2_usb_phy_init(struct rcar_gen2_usb_phy_priv *priv) +{ + u32 val; + + clk_prepare_enable(priv->clk); + + /* Set USB channels in the USBHS UGCTRL2 register */ + val = ioread32(priv->base); + val &= ~(USBHS_UGCTRL2_USB0_HS | USBHS_UGCTRL2_USB2_SS); + val |= priv->ugctrl2; + iowrite32(val, priv->base); +} + +/* Shutdown USB channels */ +static void __rcar_gen2_usb_phy_shutdown(struct rcar_gen2_usb_phy_priv *priv) +{ + __rcar_gen2_usbhs_phy_disable(priv->base); + clk_disable_unprepare(priv->clk); +} + +static int rcar_gen2_usb_phy_set_suspend(struct usb_phy *phy, int suspend) +{ + struct rcar_gen2_usb_phy_priv *priv = usb_phy_to_priv(phy); + unsigned long flags; + int retval; + + spin_lock_irqsave(&priv->lock, flags); + retval = suspend ? __rcar_gen2_usbhs_phy_disable(priv->base) : + __rcar_gen2_usbhs_phy_enable(priv->base); + spin_unlock_irqrestore(&priv->lock, flags); + return retval; +} + +static int rcar_gen2_usb_phy_init(struct usb_phy *phy) +{ + struct rcar_gen2_usb_phy_priv *priv = usb_phy_to_priv(phy); + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + /* + * Enable the clock and setup USB channels + * if it's the first user + */ + if (!priv->usecount++) + __rcar_gen2_usb_phy_init(priv); + spin_unlock_irqrestore(&priv->lock, flags); + return 0; +} + +static void rcar_gen2_usb_phy_shutdown(struct usb_phy *phy) +{ + struct rcar_gen2_usb_phy_priv *priv = usb_phy_to_priv(phy); + unsigned long flags; + + spin_lock_irqsave(&priv->lock, flags); + if (!priv->usecount) { + dev_warn(phy->dev, "Trying to disable phy with 0 usecount\n"); + goto out; + } + + /* Disable everything if it's the last user */ + if (!--priv->usecount) + __rcar_gen2_usb_phy_shutdown(priv); +out: + spin_unlock_irqrestore(&priv->lock, flags); +} + +static int rcar_gen2_usb_phy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct rcar_gen2_phy_platform_data *pdata; + struct rcar_gen2_usb_phy_priv *priv; + struct resource *res; + void __iomem *base; + struct clk *clk; + int retval; + + pdata = dev_get_platdata(&pdev->dev); + if (!pdata) { + dev_err(dev, "No platform data\n"); + return -EINVAL; + } + + clk = devm_clk_get(&pdev->dev, "usbhs"); + if (IS_ERR(clk)) { + dev_err(&pdev->dev, "Can't get the clock\n"); + return PTR_ERR(clk); + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + base = devm_ioremap_resource(dev, res); + if (IS_ERR(base)) + return PTR_ERR(base); + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) { + dev_err(dev, "Memory allocation failed\n"); + return -ENOMEM; + } + + spin_lock_init(&priv->lock); + priv->clk = clk; + priv->base = base; + priv->ugctrl2 = pdata->chan0_pci ? + USBHS_UGCTRL2_USB0_PCI : USBHS_UGCTRL2_USB0_HS; + priv->ugctrl2 |= pdata->chan2_pci ? + USBHS_UGCTRL2_USB2_PCI : USBHS_UGCTRL2_USB2_SS; + priv->phy.dev = dev; + priv->phy.label = dev_name(dev); + priv->phy.init = rcar_gen2_usb_phy_init; + priv->phy.shutdown = rcar_gen2_usb_phy_shutdown; + priv->phy.set_suspend = rcar_gen2_usb_phy_set_suspend; + + retval = usb_add_phy(&priv->phy, USB_PHY_TYPE_USB2); + if (retval < 0) { + dev_err(dev, "Failed to add USB phy\n"); + return retval; + } + + platform_set_drvdata(pdev, priv); + + return retval; +} + +static int rcar_gen2_usb_phy_remove(struct platform_device *pdev) +{ + struct rcar_gen2_usb_phy_priv *priv = platform_get_drvdata(pdev); + + usb_remove_phy(&priv->phy); + + return 0; +} + +static struct platform_driver rcar_gen2_usb_phy_driver = { + .driver = { + .name = "usb_phy_rcar_gen2", + }, + .probe = rcar_gen2_usb_phy_probe, + .remove = rcar_gen2_usb_phy_remove, +}; + +module_platform_driver(rcar_gen2_usb_phy_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Renesas R-Car Gen2 USB phy"); +MODULE_AUTHOR("Valentine Barshak <valentine.barshak@cogentembedded.com>"); diff --git a/drivers/usb/phy/phy-samsung-usb2.c b/drivers/usb/phy/phy-samsung-usb2.c index ff70e4b19b97..b3ba86627b72 100644 --- a/drivers/usb/phy/phy-samsung-usb2.c +++ b/drivers/usb/phy/phy-samsung-usb2.c @@ -411,6 +411,7 @@ static int samsung_usb2phy_probe(struct platform_device *pdev) sphy->drv_data = drv_data; sphy->phy.dev = sphy->dev; sphy->phy.label = "samsung-usb2phy"; + sphy->phy.type = USB_PHY_TYPE_USB2; sphy->phy.init = samsung_usb2phy_init; sphy->phy.shutdown = samsung_usb2phy_shutdown; @@ -426,7 +427,7 @@ static int samsung_usb2phy_probe(struct platform_device *pdev) platform_set_drvdata(pdev, sphy); - return usb_add_phy(&sphy->phy, USB_PHY_TYPE_USB2); + return usb_add_phy_dev(&sphy->phy); } static int samsung_usb2phy_remove(struct platform_device *pdev) diff --git a/drivers/usb/phy/phy-samsung-usb3.c b/drivers/usb/phy/phy-samsung-usb3.c index c6eb22213de6..cc0819248acf 100644 --- a/drivers/usb/phy/phy-samsung-usb3.c +++ b/drivers/usb/phy/phy-samsung-usb3.c @@ -271,6 +271,7 @@ static int samsung_usb3phy_probe(struct platform_device *pdev) sphy->clk = clk; sphy->phy.dev = sphy->dev; sphy->phy.label = "samsung-usb3phy"; + sphy->phy.type = USB_PHY_TYPE_USB3; sphy->phy.init = samsung_usb3phy_init; sphy->phy.shutdown = samsung_usb3phy_shutdown; sphy->drv_data = samsung_usbphy_get_driver_data(pdev); @@ -283,7 +284,7 @@ static int samsung_usb3phy_probe(struct platform_device *pdev) platform_set_drvdata(pdev, sphy); - return usb_add_phy(&sphy->phy, USB_PHY_TYPE_USB3); + return usb_add_phy_dev(&sphy->phy); } static int samsung_usb3phy_remove(struct platform_device *pdev) diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c index e9cb1cb8abc7..82232acf1ab6 100644 --- a/drivers/usb/phy/phy-tegra-usb.c +++ b/drivers/usb/phy/phy-tegra-usb.c @@ -1090,7 +1090,7 @@ static struct platform_driver tegra_usb_phy_driver = { .driver = { .name = "tegra-phy", .owner = THIS_MODULE, - .of_match_table = of_match_ptr(tegra_usb_phy_id_table), + .of_match_table = tegra_usb_phy_id_table, }, }; module_platform_driver(tegra_usb_phy_driver); diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c index 16dbc9382678..30e8a61552d4 100644 --- a/drivers/usb/phy/phy-twl6030-usb.c +++ b/drivers/usb/phy/phy-twl6030-usb.c @@ -33,6 +33,7 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/delay.h> +#include <linux/of.h> /* usb register definitions */ #define USB_VENDOR_ID_LSB 0x00 diff --git a/drivers/usb/phy/phy-ulpi-viewport.c b/drivers/usb/phy/phy-ulpi-viewport.c index 7c22a5390fc3..18bb8264b5a0 100644 --- a/drivers/usb/phy/phy-ulpi-viewport.c +++ b/drivers/usb/phy/phy-ulpi-viewport.c @@ -36,7 +36,7 @@ static int ulpi_viewport_wait(void __iomem *view, u32 mask) return 0; udelay(1); - }; + } return -ETIMEDOUT; } diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c index a9984c700d2c..1b74523e1fee 100644 --- a/drivers/usb/phy/phy.c +++ b/drivers/usb/phy/phy.c @@ -98,7 +98,7 @@ struct usb_phy *devm_usb_get_phy(struct device *dev, enum usb_phy_type type) ptr = devres_alloc(devm_usb_phy_release, sizeof(*ptr), GFP_KERNEL); if (!ptr) - return NULL; + return ERR_PTR(-ENOMEM); phy = usb_get_phy(type); if (!IS_ERR(phy)) { diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index 781426230d69..6e1b69d0f5f5 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -279,7 +279,7 @@ static void cyberjack_read_int_callback(struct urb *urb) old_rdtodo = priv->rdtodo; - if (old_rdtodo + size < old_rdtodo) { + if (old_rdtodo > SHRT_MAX - size) { dev_dbg(dev, "To many bulk_in urbs to do.\n"); spin_unlock(&priv->lock); goto resubmit; diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index c45f9c0a1b34..9ced8937a8f3 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -904,6 +904,7 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(FTDI_VID, FTDI_LUMEL_PD12_PID) }, /* Crucible Devices */ { USB_DEVICE(FTDI_VID, FTDI_CT_COMET_PID) }, + { USB_DEVICE(FTDI_VID, FTDI_Z3X_PID) }, { } /* Terminating entry */ }; @@ -1966,8 +1967,16 @@ static int ftdi_process_packet(struct usb_serial_port *port, port->icount.dsr++; if (diff_status & FTDI_RS0_RI) port->icount.rng++; - if (diff_status & FTDI_RS0_RLSD) + if (diff_status & FTDI_RS0_RLSD) { + struct tty_struct *tty; + port->icount.dcd++; + tty = tty_port_tty_get(&port->port); + if (tty) + usb_serial_handle_dcd_change(port, tty, + status & FTDI_RS0_RLSD); + tty_kref_put(tty); + } wake_up_interruptible(&port->port.delta_msr_wait); priv->prev_status = status; diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 1b8af461b522..a7019d1e3058 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -1307,3 +1307,9 @@ * Manufacturer: Crucible Technologies */ #define FTDI_CT_COMET_PID 0x8e08 + +/* + * Product: Z3X Box + * Manufacturer: Smart GSM Team + */ +#define FTDI_Z3X_PID 0x0011 diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 1f31e6b4c251..2b01ec8651c2 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -7,7 +7,6 @@ * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version * 2 as published by the Free Software Foundation. - * */ #include <linux/kernel.h> @@ -37,7 +36,6 @@ MODULE_PARM_DESC(product, "User specified USB idProduct"); static struct usb_device_id generic_device_ids[2]; /* Initially all zeroes. */ -/* All of the device info needed for the Generic Serial Converter */ struct usb_serial_driver usb_serial_generic_device = { .driver = { .owner = THIS_MODULE, @@ -66,7 +64,6 @@ int usb_serial_generic_register(void) generic_device_ids[0].match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT; - /* register our generic driver with ourselves */ retval = usb_serial_register_drivers(serial_drivers, "usbserial_generic", generic_device_ids); #endif @@ -76,7 +73,6 @@ int usb_serial_generic_register(void) void usb_serial_generic_deregister(void) { #ifdef CONFIG_USB_SERIAL_GENERIC - /* remove our generic driver */ usb_serial_deregister_drivers(serial_drivers); #endif } @@ -86,13 +82,11 @@ int usb_serial_generic_open(struct tty_struct *tty, struct usb_serial_port *port int result = 0; unsigned long flags; - /* clear the throttle flags */ spin_lock_irqsave(&port->lock, flags); port->throttled = 0; port->throttle_req = 0; spin_unlock_irqrestore(&port->lock, flags); - /* if we have a bulk endpoint, start reading from it */ if (port->bulk_in_size) result = usb_serial_generic_submit_read_urbs(port, GFP_KERNEL); @@ -127,12 +121,16 @@ int usb_serial_generic_prepare_write_buffer(struct usb_serial_port *port, } /** - * usb_serial_generic_write_start - kick off an URB write - * @port: Pointer to the &struct usb_serial_port data + * usb_serial_generic_write_start - start writing buffered data + * @port: usb-serial port + * @mem_flags: flags to use for memory allocations + * + * Serialised using USB_SERIAL_WRITE_BUSY flag. * - * Returns zero on success, or a negative errno value + * Return: Zero on success or if busy, otherwise a negative errno value. */ -static int usb_serial_generic_write_start(struct usb_serial_port *port) +int usb_serial_generic_write_start(struct usb_serial_port *port, + gfp_t mem_flags) { struct urb *urb; int count, result; @@ -163,7 +161,7 @@ retry: spin_unlock_irqrestore(&port->lock, flags); clear_bit(i, &port->write_urbs_free); - result = usb_submit_urb(urb, GFP_ATOMIC); + result = usb_submit_urb(urb, mem_flags); if (result) { dev_err_console(port, "%s - error submitting urb: %d\n", __func__, result); @@ -175,34 +173,34 @@ retry: clear_bit_unlock(USB_SERIAL_WRITE_BUSY, &port->flags); return result; } - - /* Try sending off another urb, unless in irq context (in which case - * there will be no free urb). */ - if (!in_irq()) + /* + * Try sending off another urb, unless called from completion handler + * (in which case there will be no free urb or no data). + */ + if (mem_flags != GFP_ATOMIC) goto retry; clear_bit_unlock(USB_SERIAL_WRITE_BUSY, &port->flags); return 0; } +EXPORT_SYMBOL_GPL(usb_serial_generic_write_start); /** - * usb_serial_generic_write - generic write function for serial USB devices - * @tty: Pointer to &struct tty_struct for the device - * @port: Pointer to the &usb_serial_port structure for the device - * @buf: Pointer to the data to write - * @count: Number of bytes to write + * usb_serial_generic_write - generic write function + * @tty: tty for the port + * @port: usb-serial port + * @buf: data to write + * @count: number of bytes to write * - * Returns the number of characters actually written, which may be anything - * from zero to @count. If an error occurs, it returns the negative errno - * value. + * Return: The number of characters buffered, which may be anything from + * zero to @count, or a negative errno value. */ int usb_serial_generic_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { int result; - /* only do something if we have a bulk out endpoint */ if (!port->bulk_out_size) return -ENODEV; @@ -210,7 +208,7 @@ int usb_serial_generic_write(struct tty_struct *tty, return 0; count = kfifo_in_locked(&port->write_fifo, buf, count, &port->lock); - result = usb_serial_generic_write_start(port); + result = usb_serial_generic_write_start(port, GFP_KERNEL); if (result) return result; @@ -337,10 +335,11 @@ void usb_serial_generic_process_read_urb(struct urb *urb) if (!urb->actual_length) return; - - /* The per character mucking around with sysrq path it too slow for - stuff like 3G modems, so shortcircuit it in the 99.9999999% of cases - where the USB serial is not a console anyway */ + /* + * The per character mucking around with sysrq path it too slow for + * stuff like 3G modems, so shortcircuit it in the 99.9999999% of + * cases where the USB serial is not a console anyway. + */ if (!port->port.console || !port->sysrq) tty_insert_flip_string(&port->port, ch, urb->actual_length); else { @@ -413,7 +412,7 @@ void usb_serial_generic_write_bulk_callback(struct urb *urb) kfifo_reset_out(&port->write_fifo); spin_unlock_irqrestore(&port->lock, flags); } else { - usb_serial_generic_write_start(port); + usb_serial_generic_write_start(port, GFP_ATOMIC); } usb_serial_port_softint(port); @@ -425,8 +424,6 @@ void usb_serial_generic_throttle(struct tty_struct *tty) struct usb_serial_port *port = tty->driver_data; unsigned long flags; - /* Set the throttle request flag. It will be picked up - * by usb_serial_generic_read_bulk_callback(). */ spin_lock_irqsave(&port->lock, flags); port->throttle_req = 1; spin_unlock_irqrestore(&port->lock, flags); @@ -438,7 +435,6 @@ void usb_serial_generic_unthrottle(struct tty_struct *tty) struct usb_serial_port *port = tty->driver_data; int was_throttled; - /* Clear the throttle flags */ spin_lock_irq(&port->lock); was_throttled = port->throttled; port->throttled = port->throttle_req = 0; @@ -558,10 +554,10 @@ int usb_serial_handle_break(struct usb_serial_port *port) EXPORT_SYMBOL_GPL(usb_serial_handle_break); /** - * usb_serial_handle_dcd_change - handle a change of carrier detect state - * @port: usb_serial_port structure for the open port - * @tty: tty_struct structure for the port - * @status: new carrier detect status, nonzero if active + * usb_serial_handle_dcd_change - handle a change of carrier detect state + * @port: usb-serial port + * @tty: tty for the port + * @status: new carrier detect status, nonzero if active */ void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port, struct tty_struct *tty, unsigned int status) @@ -570,6 +566,16 @@ void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port, dev_dbg(&usb_port->dev, "%s - status %d\n", __func__, status); + if (tty) { + struct tty_ldisc *ld = tty_ldisc_ref(tty); + + if (ld) { + if (ld->ops->dcd_change) + ld->ops->dcd_change(tty, status); + tty_ldisc_deref(ld); + } + } + if (status) wake_up_interruptible(&port->open_wait); else if (tty && !C_CLOCAL(tty)) @@ -595,7 +601,7 @@ int usb_serial_generic_resume(struct usb_serial *serial) } if (port->bulk_out_size) { - r = usb_serial_generic_write_start(port); + r = usb_serial_generic_write_start(port, GFP_NOIO); if (r < 0) c++; } diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index fdf953539c62..e5bdd987b9e8 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -1532,7 +1532,11 @@ static int mos7840_tiocmget(struct tty_struct *tty) return -ENODEV; status = mos7840_get_uart_reg(port, MODEM_STATUS_REGISTER, &msr); + if (status != 1) + return -EIO; status = mos7840_get_uart_reg(port, MODEM_CONTROL_REGISTER, &mcr); + if (status != 1) + return -EIO; result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0) | ((mcr & MCR_RTS) ? TIOCM_RTS : 0) | ((mcr & MCR_LOOPBACK) ? TIOCM_LOOP : 0) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 80a7104d5ddb..c3d94853b4ab 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -451,6 +451,10 @@ static void option_instat_callback(struct urb *urb); #define CHANGHONG_VENDOR_ID 0x2077 #define CHANGHONG_PRODUCT_CH690 0x7001 +/* Inovia */ +#define INOVIA_VENDOR_ID 0x20a6 +#define INOVIA_SEW858 0x1105 + /* some devices interfaces need special handling due to a number of reasons */ enum option_blacklist_reason { OPTION_BLACKLIST_NONE = 0, @@ -689,6 +693,222 @@ static const struct usb_device_id option_ids[] = { { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x7A) }, { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x7B) }, { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x02, 0x7C) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x01) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x02) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x03) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x04) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x05) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x06) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x0A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x0B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x0D) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x0E) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x0F) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x10) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x12) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x13) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x14) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x15) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x17) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x18) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x19) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x1A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x1B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x1C) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x31) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x32) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x33) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x34) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x35) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x36) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x3A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x3B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x3D) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x3E) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x3F) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x48) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x49) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x4A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x4B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x4C) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x61) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x62) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x63) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x64) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x65) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x66) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x6A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x6B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x6D) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x6E) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x6F) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x78) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x79) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x7A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x7B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x03, 0x7C) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x01) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x02) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x03) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x04) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x05) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x06) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x0A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x0B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x0D) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x0E) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x0F) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x10) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x12) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x13) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x14) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x15) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x17) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x18) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x19) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x1A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x1B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x1C) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x31) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x32) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x33) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x34) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x35) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x36) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x3A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x3B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x3D) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x3E) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x3F) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x48) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x49) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x4A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x4B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x4C) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x61) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x62) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x63) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x64) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x65) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x66) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x6A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x6B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x6D) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x6E) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x6F) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x78) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x79) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x7A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x7B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x04, 0x7C) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x01) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x02) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x03) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x04) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x05) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x06) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x0A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x0B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x0D) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x0E) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x0F) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x10) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x12) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x13) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x14) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x15) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x17) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x18) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x19) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x1A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x1B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x1C) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x31) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x32) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x33) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x34) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x35) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x36) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x3A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x3B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x3D) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x3E) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x3F) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x48) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x49) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x4A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x4B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x4C) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x61) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x62) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x63) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x64) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x65) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x66) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x6A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x6B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x6D) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x6E) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x6F) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x78) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x79) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x7A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x7B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x05, 0x7C) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x01) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x02) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x03) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x04) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x05) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x06) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x0A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x0B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x0D) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x0E) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x0F) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x10) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x12) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x13) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x14) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x15) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x17) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x18) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x19) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x1A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x1B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x1C) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x31) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x32) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x33) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x34) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x35) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x36) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x3A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x3B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x3D) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x3E) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x3F) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x48) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x49) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x4A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x4B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x4C) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x61) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x62) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x63) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x64) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x65) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x66) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x6A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x6B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x6D) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x6E) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x6F) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x78) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x79) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7A) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7B) }, + { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0x06, 0x7C) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, @@ -1156,6 +1376,23 @@ static const struct usb_device_id option_ids[] = { .driver_info = (kernel_ulong_t)&net_intf2_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1426, 0xff, 0xff, 0xff), /* ZTE MF91 */ .driver_info = (kernel_ulong_t)&net_intf2_blacklist }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1533, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1534, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1535, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1545, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1546, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1547, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1565, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1566, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1567, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1589, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1590, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1591, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1592, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1594, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1596, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1598, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1600, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2002, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t)&zte_k3765_z_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2003, 0xff, 0xff, 0xff) }, @@ -1257,7 +1494,9 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD100) }, { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD145) }, - { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD200) }, + { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD200), + .driver_info = (kernel_ulong_t)&net_intf6_blacklist + }, { USB_DEVICE(CELOT_VENDOR_ID, CELOT_PRODUCT_CT680M) }, /* CT-650 CDMA 450 1xEVDO modem */ { USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_GT_B3730, USB_CLASS_CDC_DATA, 0x00, 0x00) }, /* Samsung GT-B3730 LTE USB modem.*/ { USB_DEVICE(YUGA_VENDOR_ID, YUGA_PRODUCT_CEM600) }, @@ -1345,6 +1584,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x00, 0x00) }, { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */ { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */ + { USB_DEVICE(INOVIA_VENDOR_ID, INOVIA_SEW858) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, option_ids); diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index bedf8e47713b..1e6de4cd079d 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -4,11 +4,6 @@ * Copyright (C) 2001-2007 Greg Kroah-Hartman (greg@kroah.com) * Copyright (C) 2003 IBM Corp. * - * Copyright (C) 2009, 2013 Frank Schäfer <fschaefer.oss@googlemail.com> - * - fixes, improvements and documentation for the baud rate encoding methods - * Copyright (C) 2013 Reinhard Max <max@suse.de> - * - fixes and improvements for the divisor based baud rate encoding method - * * Original driver for 2.2.x by anonymous * * This program is free software; you can redistribute it and/or @@ -134,18 +129,10 @@ MODULE_DEVICE_TABLE(usb, id_table); enum pl2303_type { - type_0, /* H version ? */ - type_1, /* H version ? */ - HX_TA, /* HX(A) / X(A) / TA version */ /* TODO: improve */ - HXD_EA_RA_SA, /* HXD / EA / RA / SA version */ /* TODO: improve */ - TB, /* TB version */ - HX_CLONE, /* Cheap and less functional clone of the HX chip */ + type_0, /* don't know the difference between type 0 and */ + type_1, /* type 1, until someone from prolific tells us... */ + HX, /* HX version of the pl2303 chip */ }; -/* - * NOTE: don't know the difference between type 0 and type 1, - * until someone from Prolific tells us... - * TODO: distinguish between X/HX, TA and HXD, EA, RA, SA variants - */ struct pl2303_serial_private { enum pl2303_type type; @@ -185,7 +172,6 @@ static int pl2303_startup(struct usb_serial *serial) { struct pl2303_serial_private *spriv; enum pl2303_type type = type_0; - char *type_str = "unknown (treating as type_0)"; unsigned char *buf; spriv = kzalloc(sizeof(*spriv), GFP_KERNEL); @@ -198,53 +184,15 @@ static int pl2303_startup(struct usb_serial *serial) return -ENOMEM; } - if (serial->dev->descriptor.bDeviceClass == 0x02) { + if (serial->dev->descriptor.bDeviceClass == 0x02) type = type_0; - type_str = "type_0"; - } else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) { - /* - * NOTE: The bcdDevice version is the only difference between - * the device descriptors of the X/HX, HXD, EA, RA, SA, TA, TB - */ - if (le16_to_cpu(serial->dev->descriptor.bcdDevice) == 0x300) { - /* Check if the device is a clone */ - pl2303_vendor_read(0x9494, 0, serial, buf); - /* - * NOTE: Not sure if this read is really needed. - * The HX returns 0x00, the clone 0x02, but the Windows - * driver seems to ignore the value and continues. - */ - pl2303_vendor_write(0x0606, 0xaa, serial); - pl2303_vendor_read(0x8686, 0, serial, buf); - if (buf[0] != 0xaa) { - type = HX_CLONE; - type_str = "X/HX clone (limited functionality)"; - } else { - type = HX_TA; - type_str = "X/HX/TA"; - } - pl2303_vendor_write(0x0606, 0x00, serial); - } else if (le16_to_cpu(serial->dev->descriptor.bcdDevice) - == 0x400) { - type = HXD_EA_RA_SA; - type_str = "HXD/EA/RA/SA"; - } else if (le16_to_cpu(serial->dev->descriptor.bcdDevice) - == 0x500) { - type = TB; - type_str = "TB"; - } else { - dev_info(&serial->interface->dev, - "unknown/unsupported device type\n"); - kfree(spriv); - kfree(buf); - return -ENODEV; - } - } else if (serial->dev->descriptor.bDeviceClass == 0x00 - || serial->dev->descriptor.bDeviceClass == 0xFF) { + else if (serial->dev->descriptor.bMaxPacketSize0 == 0x40) + type = HX; + else if (serial->dev->descriptor.bDeviceClass == 0x00) type = type_1; - type_str = "type_1"; - } - dev_dbg(&serial->interface->dev, "device type: %s\n", type_str); + else if (serial->dev->descriptor.bDeviceClass == 0xFF) + type = type_1; + dev_dbg(&serial->interface->dev, "device type: %d\n", type); spriv->type = type; usb_set_serial_data(serial, spriv); @@ -259,10 +207,10 @@ static int pl2303_startup(struct usb_serial *serial) pl2303_vendor_read(0x8383, 0, serial, buf); pl2303_vendor_write(0, 1, serial); pl2303_vendor_write(1, 0, serial); - if (type == type_0 || type == type_1) - pl2303_vendor_write(2, 0x24, serial); - else + if (type == HX) pl2303_vendor_write(2, 0x44, serial); + else + pl2303_vendor_write(2, 0x24, serial); kfree(buf); return 0; @@ -316,174 +264,65 @@ static int pl2303_set_control_lines(struct usb_serial_port *port, u8 value) return retval; } -static int pl2303_baudrate_encode_direct(int baud, enum pl2303_type type, - u8 buf[4]) +static void pl2303_encode_baudrate(struct tty_struct *tty, + struct usb_serial_port *port, + u8 buf[4]) { - /* - * NOTE: Only the values defined in baud_sup are supported ! - * => if unsupported values are set, the PL2303 uses 9600 baud instead - * => HX clones just don't work at unsupported baud rates < 115200 baud, - * for baud rates > 115200 they run at 115200 baud - */ const int baud_sup[] = { 75, 150, 300, 600, 1200, 1800, 2400, 3600, - 4800, 7200, 9600, 14400, 19200, 28800, 38400, - 57600, 115200, 230400, 460800, 614400, 921600, - 1228800, 2457600, 3000000, 6000000, 12000000 }; + 4800, 7200, 9600, 14400, 19200, 28800, 38400, + 57600, 115200, 230400, 460800, 500000, 614400, + 921600, 1228800, 2457600, 3000000, 6000000 }; + + struct usb_serial *serial = port->serial; + struct pl2303_serial_private *spriv = usb_get_serial_data(serial); + int baud; + int i; + /* - * NOTE: With the exception of type_0/1 devices, the following - * additional baud rates are supported (tested with HX rev. 3A only): - * 110*, 56000*, 128000, 134400, 161280, 201600, 256000*, 268800, - * 403200, 806400. (*: not HX and HX clones) - * - * Maximum values: HXD, TB: 12000000; HX, TA: 6000000; - * type_0+1: 1228800; RA: 921600; HX clones, SA: 115200 - * - * As long as we are not using this encoding method for anything else - * than the type_0+1, HX and HX clone chips, there is no point in - * complicating the code to support them. + * NOTE: Only the values defined in baud_sup are supported! + * => if unsupported values are set, the PL2303 seems to use + * 9600 baud (at least my PL2303X always does) */ - int i; + baud = tty_get_baud_rate(tty); + dev_dbg(&port->dev, "baud requested = %d\n", baud); + if (!baud) + return; /* Set baudrate to nearest supported value */ for (i = 0; i < ARRAY_SIZE(baud_sup); ++i) { if (baud_sup[i] > baud) break; } + if (i == ARRAY_SIZE(baud_sup)) baud = baud_sup[i - 1]; else if (i > 0 && (baud_sup[i] - baud) > (baud - baud_sup[i - 1])) baud = baud_sup[i - 1]; else baud = baud_sup[i]; - /* Respect the chip type specific baud rate limits */ - /* - * FIXME: as long as we don't know how to distinguish between the - * HXD, EA, RA, and SA chip variants, allow the max. value of 12M. - */ - if (type == HX_TA) - baud = min_t(int, baud, 6000000); - else if (type == type_0 || type == type_1) - baud = min_t(int, baud, 1228800); - else if (type == HX_CLONE) - baud = min_t(int, baud, 115200); - /* Direct (standard) baud rate encoding method */ - put_unaligned_le32(baud, buf); - - return baud; -} -static int pl2303_baudrate_encode_divisor(int baud, enum pl2303_type type, - u8 buf[4]) -{ - /* - * Divisor based baud rate encoding method - * - * NOTE: HX clones do NOT support this method. - * It's not clear if the type_0/1 chips support it. - * - * divisor = 12MHz * 32 / baudrate = 2^A * B - * - * with - * - * A = buf[1] & 0x0e - * B = buf[0] + (buf[1] & 0x01) << 8 - * - * Special cases: - * => 8 < B < 16: device seems to work not properly - * => B <= 8: device uses the max. value B = 512 instead - */ - unsigned int A, B; + /* type_0, type_1 only support up to 1228800 baud */ + if (spriv->type != HX) + baud = min_t(int, baud, 1228800); - /* - * NOTE: The Windows driver allows maximum baud rates of 110% of the - * specified maximium value. - * Quick tests with early (2004) HX (rev. A) chips suggest, that even - * higher baud rates (up to the maximum of 24M baud !) are working fine, - * but that should really be tested carefully in "real life" scenarios - * before removing the upper limit completely. - * Baud rates smaller than the specified 75 baud are definitely working - * fine. - */ - if (type == type_0 || type == type_1) - baud = min_t(int, baud, 1228800 * 1.1); - else if (type == HX_TA) - baud = min_t(int, baud, 6000000 * 1.1); - else if (type == HXD_EA_RA_SA) - /* HXD, EA: 12Mbps; RA: 1Mbps; SA: 115200 bps */ - /* - * FIXME: as long as we don't know how to distinguish between - * these chip variants, allow the max. of these values - */ - baud = min_t(int, baud, 12000000 * 1.1); - else if (type == TB) - baud = min_t(int, baud, 12000000 * 1.1); - /* Determine factors A and B */ - A = 0; - B = 12000000 * 32 / baud; /* 12MHz */ - B <<= 1; /* Add one bit for rounding */ - while (B > (512 << 1) && A <= 14) { - A += 2; - B >>= 2; - } - if (A > 14) { /* max. divisor = min. baudrate reached */ - A = 14; - B = 512; - /* => ~45.78 baud */ + if (baud <= 115200) { + put_unaligned_le32(baud, buf); } else { - B = (B + 1) >> 1; /* Round the last bit */ - } - /* Handle special cases */ - if (B == 512) - B = 0; /* also: 1 to 8 */ - else if (B < 16) /* - * NOTE: With the current algorithm this happens - * only for A=0 and means that the min. divisor - * (respectively: the max. baudrate) is reached. + * Apparently the formula for higher speeds is: + * baudrate = 12M * 32 / (2^buf[1]) / buf[0] */ - B = 16; /* => 24 MBaud */ - /* Encode the baud rate */ - buf[3] = 0x80; /* Select divisor encoding method */ - buf[2] = 0; - buf[1] = (A & 0x0e); /* A */ - buf[1] |= ((B & 0x100) >> 8); /* MSB of B */ - buf[0] = B & 0xff; /* 8 LSBs of B */ - /* Calculate the actual/resulting baud rate */ - if (B <= 8) - B = 512; - baud = 12000000 * 32 / ((1 << A) * B); - - return baud; -} - -static void pl2303_encode_baudrate(struct tty_struct *tty, - struct usb_serial_port *port, - enum pl2303_type type, - u8 buf[4]) -{ - int baud; + unsigned tmp = 12000000 * 32 / baud; + buf[3] = 0x80; + buf[2] = 0; + buf[1] = (tmp >= 256); + while (tmp >= 256) { + tmp >>= 2; + buf[1] <<= 1; + } + buf[0] = tmp; + } - baud = tty_get_baud_rate(tty); - dev_dbg(&port->dev, "baud requested = %d\n", baud); - if (!baud) - return; - /* - * There are two methods for setting/encoding the baud rate - * 1) Direct method: encodes the baud rate value directly - * => supported by all chip types - * 2) Divisor based method: encodes a divisor to a base value (12MHz*32) - * => not supported by HX clones (and likely type_0/1 chips) - * - * NOTE: Although the divisor based baud rate encoding method is much - * more flexible, some of the standard baud rate values can not be - * realized exactly. But the difference is very small (max. 0.2%) and - * the device likely uses the same baud rate generator for both methods - * so that there is likley no difference. - */ - if (type == type_0 || type == type_1 || type == HX_CLONE) - baud = pl2303_baudrate_encode_direct(baud, type, buf); - else - baud = pl2303_baudrate_encode_divisor(baud, type, buf); /* Save resulting baud rate */ tty_encode_baud_rate(tty, baud, baud); dev_dbg(&port->dev, "baud set = %d\n", baud); @@ -540,8 +379,8 @@ static void pl2303_set_termios(struct tty_struct *tty, dev_dbg(&port->dev, "data bits = %d\n", buf[6]); } - /* For reference: buf[0]:buf[3] baud rate value */ - pl2303_encode_baudrate(tty, port, spriv->type, buf); + /* For reference buf[0]:buf[3] baud rate value */ + pl2303_encode_baudrate(tty, port, &buf[0]); /* For reference buf[4]=0 is 1 stop bits */ /* For reference buf[4]=1 is 1.5 stop bits */ @@ -618,10 +457,10 @@ static void pl2303_set_termios(struct tty_struct *tty, dev_dbg(&port->dev, "0xa1:0x21:0:0 %d - %7ph\n", i, buf); if (C_CRTSCTS(tty)) { - if (spriv->type == type_0 || spriv->type == type_1) - pl2303_vendor_write(0x0, 0x41, serial); - else + if (spriv->type == HX) pl2303_vendor_write(0x0, 0x61, serial); + else + pl2303_vendor_write(0x0, 0x41, serial); } else { pl2303_vendor_write(0x0, 0x0, serial); } @@ -658,7 +497,7 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port) struct pl2303_serial_private *spriv = usb_get_serial_data(serial); int result; - if (spriv->type == type_0 || spriv->type == type_1) { + if (spriv->type != HX) { usb_clear_halt(serial->dev, port->write_urb->pipe); usb_clear_halt(serial->dev, port->read_urb->pipe); } else { @@ -833,7 +672,6 @@ static void pl2303_break_ctl(struct tty_struct *tty, int break_state) result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), BREAK_REQUEST, BREAK_REQUEST_TYPE, state, 0, NULL, 0, 100); - /* NOTE: HX clones don't support sending breaks, -EPIPE is returned */ if (result) dev_err(&port->dev, "error sending break = %d\n", result); } diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 760b78560f67..c9a35697ebe9 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -190,6 +190,7 @@ static struct usb_device_id ti_id_table_combined[] = { { USB_DEVICE(IBM_VENDOR_ID, IBM_454B_PRODUCT_ID) }, { USB_DEVICE(IBM_VENDOR_ID, IBM_454C_PRODUCT_ID) }, { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_PRODUCT_ID) }, + { USB_DEVICE(ABBOTT_VENDOR_ID, ABBOTT_STRIP_PORT_ID) }, { USB_DEVICE(TI_VENDOR_ID, FRI2_PRODUCT_ID) }, { } /* terminator */ }; diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index 94d75edef77f..18509e6c21ab 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -211,8 +211,11 @@ static int slave_configure(struct scsi_device *sdev) /* * Many devices do not respond properly to READ_CAPACITY_16. * Tell the SCSI layer to try READ_CAPACITY_10 first. + * However some USB 3.0 drive enclosures return capacity + * modulo 2TB. Those must use READ_CAPACITY_16 */ - sdev->try_rc_10_first = 1; + if (!(us->fflags & US_FL_NEEDS_CAP16)) + sdev->try_rc_10_first = 1; /* assume SPC3 or latter devices support sense size > 18 */ if (sdev->scsi_level > SCSI_SPC_2) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index c015f2c16729..de32cfa5bfa6 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1925,6 +1925,13 @@ UNUSUAL_DEV( 0x1652, 0x6600, 0x0201, 0x0201, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), +/* Reported by Oliver Neukum <oneukum@suse.com> */ +UNUSUAL_DEV( 0x174c, 0x55aa, 0x0100, 0x0100, + "ASMedia", + "AS2105", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_NEEDS_CAP16), + /* Reported by Jesse Feddema <jdfeddema@gmail.com> */ UNUSUAL_DEV( 0x177f, 0x0400, 0x0000, 0x0000, "Yarvik", diff --git a/drivers/usb/wusbcore/cbaf.c b/drivers/usb/wusbcore/cbaf.c index 7f78f300f8fb..f06ed82e63d1 100644 --- a/drivers/usb/wusbcore/cbaf.c +++ b/drivers/usb/wusbcore/cbaf.c @@ -208,9 +208,9 @@ static int cbaf_check(struct cbaf *cbaf) ar_name = "ASSOCIATE"; ar_assoc = 1; break; - }; + } break; - }; + } dev_dbg(dev, "Association request #%02u: 0x%04x/%04x " "(%zu bytes): %s\n", @@ -623,6 +623,8 @@ static int cbaf_probe(struct usb_interface *iface, error_create_group: error_check: + usb_put_intf(iface); + usb_put_dev(cbaf->usb_dev); kfree(cbaf->buffer); error_kmalloc_buffer: kfree(cbaf); @@ -637,6 +639,7 @@ static void cbaf_disconnect(struct usb_interface *iface) sysfs_remove_group(&dev->kobj, &cbaf_dev_attr_group); usb_set_intfdata(iface, NULL); usb_put_intf(iface); + usb_put_dev(cbaf->usb_dev); kfree(cbaf->buffer); /* paranoia: clean up crypto keys */ kzfree(cbaf); diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c index 33a12788f9ca..e538b72c4e3a 100644 --- a/drivers/usb/wusbcore/devconnect.c +++ b/drivers/usb/wusbcore/devconnect.c @@ -973,7 +973,7 @@ int wusb_usb_ncb(struct notifier_block *nb, unsigned long val, default: WARN_ON(1); result = NOTIFY_BAD; - }; + } return result; } diff --git a/drivers/usb/wusbcore/wa-hc.c b/drivers/usb/wusbcore/wa-hc.c index a09b65ebd9bb..368360f9a93a 100644 --- a/drivers/usb/wusbcore/wa-hc.c +++ b/drivers/usb/wusbcore/wa-hc.c @@ -33,7 +33,8 @@ * wa->usb_dev and wa->usb_iface initialized and refcounted, * wa->wa_descr initialized. */ -int wa_create(struct wahc *wa, struct usb_interface *iface) +int wa_create(struct wahc *wa, struct usb_interface *iface, + kernel_ulong_t quirks) { int result; struct device *dev = &iface->dev; @@ -41,14 +42,15 @@ int wa_create(struct wahc *wa, struct usb_interface *iface) result = wa_rpipes_create(wa); if (result < 0) goto error_rpipes_create; + wa->quirks = quirks; /* Fill up Data Transfer EP pointers */ wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc; wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc; - wa->xfer_result_size = usb_endpoint_maxp(wa->dti_epd); - wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL); - if (wa->xfer_result == NULL) { + wa->dti_buf_size = usb_endpoint_maxp(wa->dti_epd); + wa->dti_buf = kmalloc(wa->dti_buf_size, GFP_KERNEL); + if (wa->dti_buf == NULL) { result = -ENOMEM; - goto error_xfer_result_alloc; + goto error_dti_buf_alloc; } result = wa_nep_create(wa, iface); if (result < 0) { @@ -59,8 +61,8 @@ int wa_create(struct wahc *wa, struct usb_interface *iface) return 0; error_nep_create: - kfree(wa->xfer_result); -error_xfer_result_alloc: + kfree(wa->dti_buf); +error_dti_buf_alloc: wa_rpipes_destroy(wa); error_rpipes_create: return result; @@ -76,7 +78,7 @@ void __wa_destroy(struct wahc *wa) usb_kill_urb(wa->buf_in_urb); usb_put_urb(wa->buf_in_urb); } - kfree(wa->xfer_result); + kfree(wa->dti_buf); wa_nep_destroy(wa); wa_rpipes_destroy(wa); } diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h index cf250c21e946..e614f02f0cf2 100644 --- a/drivers/usb/wusbcore/wa-hc.h +++ b/drivers/usb/wusbcore/wa-hc.h @@ -117,11 +117,25 @@ struct wa_rpipe { struct wahc *wa; spinlock_t seg_lock; struct list_head seg_list; + struct list_head list_node; atomic_t segs_available; u8 buffer[1]; /* For reads/writes on USB */ }; +enum wa_dti_state { + WA_DTI_TRANSFER_RESULT_PENDING, + WA_DTI_ISOC_PACKET_STATUS_PENDING +}; + +enum wa_quirks { + /* + * The Alereon HWA expects the data frames in isochronous transfer + * requests to be concatenated and not sent as separate packets. + */ + WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC = 0x01, +}; + /** * Instance of a HWA Host Controller * @@ -178,14 +192,26 @@ struct wahc { u16 rpipes; unsigned long *rpipe_bm; /* rpipe usage bitmap */ - spinlock_t rpipe_bm_lock; /* protect rpipe_bm */ + struct list_head rpipe_delayed_list; /* delayed RPIPES. */ + spinlock_t rpipe_lock; /* protect rpipe_bm and delayed list */ struct mutex rpipe_mutex; /* assigning resources to endpoints */ + /* + * dti_state is used to track the state of the dti_urb. When dti_state + * is WA_DTI_ISOC_PACKET_STATUS_PENDING, dti_isoc_xfer_in_progress and + * dti_isoc_xfer_seg identify which xfer the incoming isoc packet status + * refers to. + */ + enum wa_dti_state dti_state; + u32 dti_isoc_xfer_in_progress; + u8 dti_isoc_xfer_seg; struct urb *dti_urb; /* URB for reading xfer results */ struct urb *buf_in_urb; /* URB for reading data in */ struct edc dti_edc; /* DTI error density counter */ - struct wa_xfer_result *xfer_result; /* real size = dti_ep maxpktsize */ - size_t xfer_result_size; + void *dti_buf; + size_t dti_buf_size; + + unsigned long dto_in_use; /* protect dto endoint serialization. */ s32 status; /* For reading status */ @@ -200,10 +226,13 @@ struct wahc { struct work_struct xfer_enqueue_work; struct work_struct xfer_error_work; atomic_t xfer_id_count; + + kernel_ulong_t quirks; }; -extern int wa_create(struct wahc *wa, struct usb_interface *iface); +extern int wa_create(struct wahc *wa, struct usb_interface *iface, + kernel_ulong_t); extern void __wa_destroy(struct wahc *wa); void wa_reset_all(struct wahc *wa); @@ -239,7 +268,8 @@ static inline void wa_nep_disarm(struct wahc *wa) /* RPipes */ static inline void wa_rpipe_init(struct wahc *wa) { - spin_lock_init(&wa->rpipe_bm_lock); + INIT_LIST_HEAD(&wa->rpipe_delayed_list); + spin_lock_init(&wa->rpipe_lock); mutex_init(&wa->rpipe_mutex); } @@ -247,6 +277,7 @@ static inline void wa_init(struct wahc *wa) { edc_init(&wa->nep_edc); atomic_set(&wa->notifs_queued, 0); + wa->dti_state = WA_DTI_TRANSFER_RESULT_PENDING; wa_rpipe_init(wa); edc_init(&wa->dti_edc); INIT_LIST_HEAD(&wa->xfer_list); @@ -255,6 +286,7 @@ static inline void wa_init(struct wahc *wa) spin_lock_init(&wa->xfer_list_lock); INIT_WORK(&wa->xfer_enqueue_work, wa_urb_enqueue_run); INIT_WORK(&wa->xfer_error_work, wa_process_errored_transfers_run); + wa->dto_in_use = 0; atomic_set(&wa->xfer_id_count, 1); } diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c index fd4f1ce6256a..b48e74cc54d7 100644 --- a/drivers/usb/wusbcore/wa-rpipe.c +++ b/drivers/usb/wusbcore/wa-rpipe.c @@ -143,17 +143,18 @@ static void rpipe_init(struct wa_rpipe *rpipe) kref_init(&rpipe->refcnt); spin_lock_init(&rpipe->seg_lock); INIT_LIST_HEAD(&rpipe->seg_list); + INIT_LIST_HEAD(&rpipe->list_node); } static unsigned rpipe_get_idx(struct wahc *wa, unsigned rpipe_idx) { unsigned long flags; - spin_lock_irqsave(&wa->rpipe_bm_lock, flags); + spin_lock_irqsave(&wa->rpipe_lock, flags); rpipe_idx = find_next_zero_bit(wa->rpipe_bm, wa->rpipes, rpipe_idx); if (rpipe_idx < wa->rpipes) set_bit(rpipe_idx, wa->rpipe_bm); - spin_unlock_irqrestore(&wa->rpipe_bm_lock, flags); + spin_unlock_irqrestore(&wa->rpipe_lock, flags); return rpipe_idx; } @@ -162,9 +163,9 @@ static void rpipe_put_idx(struct wahc *wa, unsigned rpipe_idx) { unsigned long flags; - spin_lock_irqsave(&wa->rpipe_bm_lock, flags); + spin_lock_irqsave(&wa->rpipe_lock, flags); clear_bit(rpipe_idx, wa->rpipe_bm); - spin_unlock_irqrestore(&wa->rpipe_bm_lock, flags); + spin_unlock_irqrestore(&wa->rpipe_lock, flags); } void rpipe_destroy(struct kref *_rpipe) @@ -333,7 +334,10 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa, /* FIXME: compute so seg_size > ep->maxpktsize */ rpipe->descr.wBlocks = cpu_to_le16(16); /* given */ /* ep0 maxpktsize is 0x200 (WUSB1.0[4.8.1]) */ - rpipe->descr.wMaxPacketSize = cpu_to_le16(ep->desc.wMaxPacketSize); + if (usb_endpoint_xfer_isoc(&ep->desc)) + rpipe->descr.wMaxPacketSize = epcd->wOverTheAirPacketSize; + else + rpipe->descr.wMaxPacketSize = ep->desc.wMaxPacketSize; rpipe->descr.hwa_bMaxBurst = max(min_t(unsigned int, epcd->bMaxBurst, 16U), 1U); @@ -361,8 +365,10 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa, epcd->bMaxSequence, 32U), 2U); rpipe->descr.bMaxDataSequence = epcd_max_sequence - 1; rpipe->descr.bInterval = ep->desc.bInterval; - /* FIXME: bOverTheAirInterval */ - rpipe->descr.bOverTheAirInterval = 0; /* 0 if not isoc */ + if (usb_endpoint_xfer_isoc(&ep->desc)) + rpipe->descr.bOverTheAirInterval = epcd->bOverTheAirInterval; + else + rpipe->descr.bOverTheAirInterval = 0; /* 0 if not isoc */ /* FIXME: xmit power & preamble blah blah */ rpipe->descr.bmAttribute = (ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK); @@ -477,7 +483,7 @@ error: */ int wa_rpipes_create(struct wahc *wa) { - wa->rpipes = wa->wa_descr->wNumRPipes; + wa->rpipes = le16_to_cpu(wa->wa_descr->wNumRPipes); wa->rpipe_bm = kzalloc(BITS_TO_LONGS(wa->rpipes)*sizeof(unsigned long), GFP_KERNEL); if (wa->rpipe_bm == NULL) diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 6ad02f57c366..ed5abe87b049 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -91,7 +91,8 @@ #include "wusbhc.h" enum { - WA_SEGS_MAX = 255, + /* [WUSB] section 8.3.3 allocates 7 bits for the segment index. */ + WA_SEGS_MAX = 128, }; enum wa_seg_status { @@ -107,6 +108,7 @@ enum wa_seg_status { }; static void wa_xfer_delayed_run(struct wa_rpipe *); +static int __wa_xfer_delayed_run(struct wa_rpipe *rpipe, int *dto_waiting); /* * Life cycle governed by 'struct urb' (the refcount of the struct is @@ -114,24 +116,27 @@ static void wa_xfer_delayed_run(struct wa_rpipe *); * struct). */ struct wa_seg { - struct urb urb; - struct urb *dto_urb; /* for data output? */ + struct urb tr_urb; /* transfer request urb. */ + struct urb *isoc_pack_desc_urb; /* for isoc packet descriptor. */ + struct urb *dto_urb; /* for data output. */ struct list_head list_node; /* for rpipe->req_list */ struct wa_xfer *xfer; /* out xfer */ u8 index; /* which segment we are */ + int isoc_frame_count; /* number of isoc frames in this segment. */ + int isoc_frame_offset; /* starting frame offset in the xfer URB. */ + int isoc_size; /* size of all isoc frames sent by this seg. */ enum wa_seg_status status; ssize_t result; /* bytes xfered or error */ struct wa_xfer_hdr xfer_hdr; - u8 xfer_extra[]; /* xtra space for xfer_hdr_ctl */ }; static inline void wa_seg_init(struct wa_seg *seg) { - usb_init_urb(&seg->urb); + usb_init_urb(&seg->tr_urb); /* set the remaining memory to 0. */ - memset(((void *)seg) + sizeof(seg->urb), 0, - sizeof(*seg) - sizeof(seg->urb)); + memset(((void *)seg) + sizeof(seg->tr_urb), 0, + sizeof(*seg) - sizeof(seg->tr_urb)); } /* @@ -153,12 +158,17 @@ struct wa_xfer { unsigned is_dma:1; size_t seg_size; int result; + /* Isoc frame that the current transfer buffer corresponds to. */ + int dto_isoc_frame_index; gfp_t gfp; /* allocation mask */ struct wusb_dev *wusb_dev; /* for activity timestamps */ }; +static void __wa_populate_dto_urb_isoc(struct wa_xfer *xfer, + struct wa_seg *seg, int curr_iso_frame); + static inline void wa_xfer_init(struct wa_xfer *xfer) { kref_init(&xfer->refcnt); @@ -169,7 +179,7 @@ static inline void wa_xfer_init(struct wa_xfer *xfer) /* * Destroy a transfer structure * - * Note that freeing xfer->seg[cnt]->urb will free the containing + * Note that freeing xfer->seg[cnt]->tr_urb will free the containing * xfer->seg[cnt] memory that was allocated by __wa_xfer_setup_segs. */ static void wa_xfer_destroy(struct kref *_xfer) @@ -178,9 +188,17 @@ static void wa_xfer_destroy(struct kref *_xfer) if (xfer->seg) { unsigned cnt; for (cnt = 0; cnt < xfer->segs; cnt++) { - usb_free_urb(xfer->seg[cnt]->dto_urb); - usb_free_urb(&xfer->seg[cnt]->urb); + struct wa_seg *seg = xfer->seg[cnt]; + if (seg) { + usb_free_urb(seg->isoc_pack_desc_urb); + if (seg->dto_urb) { + kfree(seg->dto_urb->sg); + usb_free_urb(seg->dto_urb); + } + usb_free_urb(&seg->tr_urb); + } } + kfree(xfer->seg); } kfree(xfer); } @@ -196,6 +214,59 @@ static void wa_xfer_put(struct wa_xfer *xfer) } /* + * Try to get exclusive access to the DTO endpoint resource. Return true + * if successful. + */ +static inline int __wa_dto_try_get(struct wahc *wa) +{ + return (test_and_set_bit(0, &wa->dto_in_use) == 0); +} + +/* Release the DTO endpoint resource. */ +static inline void __wa_dto_put(struct wahc *wa) +{ + clear_bit_unlock(0, &wa->dto_in_use); +} + +/* Service RPIPEs that are waiting on the DTO resource. */ +static void wa_check_for_delayed_rpipes(struct wahc *wa) +{ + unsigned long flags; + int dto_waiting = 0; + struct wa_rpipe *rpipe; + + spin_lock_irqsave(&wa->rpipe_lock, flags); + while (!list_empty(&wa->rpipe_delayed_list) && !dto_waiting) { + rpipe = list_first_entry(&wa->rpipe_delayed_list, + struct wa_rpipe, list_node); + __wa_xfer_delayed_run(rpipe, &dto_waiting); + /* remove this RPIPE from the list if it is not waiting. */ + if (!dto_waiting) { + pr_debug("%s: RPIPE %d serviced and removed from delayed list.\n", + __func__, + le16_to_cpu(rpipe->descr.wRPipeIndex)); + list_del_init(&rpipe->list_node); + } + } + spin_unlock_irqrestore(&wa->rpipe_lock, flags); +} + +/* add this RPIPE to the end of the delayed RPIPE list. */ +static void wa_add_delayed_rpipe(struct wahc *wa, struct wa_rpipe *rpipe) +{ + unsigned long flags; + + spin_lock_irqsave(&wa->rpipe_lock, flags); + /* add rpipe to the list if it is not already on it. */ + if (list_empty(&rpipe->list_node)) { + pr_debug("%s: adding RPIPE %d to the delayed list.\n", + __func__, le16_to_cpu(rpipe->descr.wRPipeIndex)); + list_add_tail(&rpipe->list_node, &wa->rpipe_delayed_list); + } + spin_unlock_irqrestore(&wa->rpipe_lock, flags); +} + +/* * xfer is referenced * * xfer->lock has to be unlocked @@ -232,6 +303,31 @@ static void wa_xfer_completion(struct wa_xfer *xfer) } /* + * Initialize a transfer's ID + * + * We need to use a sequential number; if we use the pointer or the + * hash of the pointer, it can repeat over sequential transfers and + * then it will confuse the HWA....wonder why in hell they put a 32 + * bit handle in there then. + */ +static void wa_xfer_id_init(struct wa_xfer *xfer) +{ + xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count); +} + +/* Return the xfer's ID. */ +static inline u32 wa_xfer_id(struct wa_xfer *xfer) +{ + return xfer->id; +} + +/* Return the xfer's ID in transport format (little endian). */ +static inline __le32 wa_xfer_id_le32(struct wa_xfer *xfer) +{ + return cpu_to_le32(xfer->id); +} + +/* * If transfer is done, wrap it up and return true * * xfer->lock has to be locked @@ -253,33 +349,37 @@ static unsigned __wa_xfer_is_done(struct wa_xfer *xfer) switch (seg->status) { case WA_SEG_DONE: if (found_short && seg->result > 0) { - dev_dbg(dev, "xfer %p#%u: bad short segments (%zu)\n", - xfer, cnt, seg->result); + dev_dbg(dev, "xfer %p ID %08X#%u: bad short segments (%zu)\n", + xfer, wa_xfer_id(xfer), cnt, + seg->result); urb->status = -EINVAL; goto out; } urb->actual_length += seg->result; - if (seg->result < xfer->seg_size + if (!(usb_pipeisoc(xfer->urb->pipe)) + && seg->result < xfer->seg_size && cnt != xfer->segs-1) found_short = 1; - dev_dbg(dev, "xfer %p#%u: DONE short %d " + dev_dbg(dev, "xfer %p ID %08X#%u: DONE short %d " "result %zu urb->actual_length %d\n", - xfer, seg->index, found_short, seg->result, - urb->actual_length); + xfer, wa_xfer_id(xfer), seg->index, found_short, + seg->result, urb->actual_length); break; case WA_SEG_ERROR: xfer->result = seg->result; - dev_dbg(dev, "xfer %p#%u: ERROR result %zu\n", - xfer, seg->index, seg->result); + dev_dbg(dev, "xfer %p ID %08X#%u: ERROR result %zu(0x%08zX)\n", + xfer, wa_xfer_id(xfer), seg->index, seg->result, + seg->result); goto out; case WA_SEG_ABORTED: - dev_dbg(dev, "xfer %p#%u ABORTED: result %d\n", - xfer, seg->index, urb->status); + dev_dbg(dev, "xfer %p ID %08X#%u ABORTED: result %d\n", + xfer, wa_xfer_id(xfer), seg->index, + urb->status); xfer->result = urb->status; goto out; default: - dev_warn(dev, "xfer %p#%u: is_done bad state %d\n", - xfer, cnt, seg->status); + dev_warn(dev, "xfer %p ID %08X#%u: is_done bad state %d\n", + xfer, wa_xfer_id(xfer), cnt, seg->status); xfer->result = -EINVAL; goto out; } @@ -290,29 +390,6 @@ out: } /* - * Initialize a transfer's ID - * - * We need to use a sequential number; if we use the pointer or the - * hash of the pointer, it can repeat over sequential transfers and - * then it will confuse the HWA....wonder why in hell they put a 32 - * bit handle in there then. - */ -static void wa_xfer_id_init(struct wa_xfer *xfer) -{ - xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count); -} - -/* - * Return the xfer's ID associated with xfer - * - * Need to generate a - */ -static u32 wa_xfer_id(struct wa_xfer *xfer) -{ - return xfer->id; -} - -/* * Search for a transfer list ID on the HCD's URB list * * For 32 bit architectures, we use the pointer itself; for 64 bits, a @@ -356,15 +433,11 @@ static void __wa_xfer_abort_cb(struct urb *urb) * * The callback (see above) does nothing but freeing up the data by * putting the URB. Because the URB is allocated at the head of the - * struct, the whole space we allocated is kfreed. - * - * We'll get an 'aborted transaction' xfer result on DTI, that'll - * politely ignore because at this point the transaction has been - * marked as aborted already. + * struct, the whole space we allocated is kfreed. * */ -static void __wa_xfer_abort(struct wa_xfer *xfer) +static int __wa_xfer_abort(struct wa_xfer *xfer) { - int result; + int result = -ENOMEM; struct device *dev = &xfer->wa->usb_iface->dev; struct wa_xfer_abort_buffer *b; struct wa_rpipe *rpipe = xfer->ep->hcpriv; @@ -375,7 +448,7 @@ static void __wa_xfer_abort(struct wa_xfer *xfer) b->cmd.bLength = sizeof(b->cmd); b->cmd.bRequestType = WA_XFER_ABORT; b->cmd.wRPipe = rpipe->descr.wRPipeIndex; - b->cmd.dwTransferID = wa_xfer_id(xfer); + b->cmd.dwTransferID = wa_xfer_id_le32(xfer); usb_init_urb(&b->urb); usb_fill_bulk_urb(&b->urb, xfer->wa->usb_dev, @@ -385,7 +458,7 @@ static void __wa_xfer_abort(struct wa_xfer *xfer) result = usb_submit_urb(&b->urb, GFP_ATOMIC); if (result < 0) goto error_submit; - return; /* callback frees! */ + return result; /* callback frees! */ error_submit: @@ -394,11 +467,52 @@ error_submit: xfer, result); kfree(b); error_kmalloc: - return; + return result; } /* + * Calculate the number of isoc frames starting from isoc_frame_offset + * that will fit a in transfer segment. + */ +static int __wa_seg_calculate_isoc_frame_count(struct wa_xfer *xfer, + int isoc_frame_offset, int *total_size) +{ + int segment_size = 0, frame_count = 0; + int index = isoc_frame_offset; + struct usb_iso_packet_descriptor *iso_frame_desc = + xfer->urb->iso_frame_desc; + + while ((index < xfer->urb->number_of_packets) + && ((segment_size + iso_frame_desc[index].length) + <= xfer->seg_size)) { + /* + * For Alereon HWA devices, only include an isoc frame in a + * segment if it is physically contiguous with the previous + * frame. This is required because those devices expect + * the isoc frames to be sent as a single USB transaction as + * opposed to one transaction per frame with standard HWA. + */ + if ((xfer->wa->quirks & WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC) + && (index > isoc_frame_offset) + && ((iso_frame_desc[index - 1].offset + + iso_frame_desc[index - 1].length) != + iso_frame_desc[index].offset)) + break; + + /* this frame fits. count it. */ + ++frame_count; + segment_size += iso_frame_desc[index].length; + + /* move to the next isoc frame. */ + ++index; + } + + *total_size = segment_size; + return frame_count; +} + +/* * * @returns < 0 on error, transfer segment request size if ok */ @@ -422,43 +536,92 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer, result = sizeof(struct wa_xfer_bi); break; case USB_ENDPOINT_XFER_ISOC: - dev_err(dev, "FIXME: ISOC not implemented\n"); - result = -ENOSYS; - goto error; + if (usb_pipeout(urb->pipe)) { + *pxfer_type = WA_XFER_TYPE_ISO; + result = sizeof(struct wa_xfer_hwaiso); + } else { + dev_err(dev, "FIXME: ISOC IN not implemented\n"); + result = -ENOSYS; + goto error; + } + break; default: /* never happens */ BUG(); result = -EINVAL; /* shut gcc up */ - }; + } xfer->is_inbound = urb->pipe & USB_DIR_IN ? 1 : 0; xfer->is_dma = urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP ? 1 : 0; - xfer->seg_size = le16_to_cpu(rpipe->descr.wBlocks) - * 1 << (xfer->wa->wa_descr->bRPipeBlockSize - 1); - /* Compute the segment size and make sure it is a multiple of - * the maxpktsize (WUSB1.0[8.3.3.1])...not really too much of - * a check (FIXME) */ + maxpktsize = le16_to_cpu(rpipe->descr.wMaxPacketSize); - if (xfer->seg_size < maxpktsize) { - dev_err(dev, "HW BUG? seg_size %zu smaller than maxpktsize " - "%zu\n", xfer->seg_size, maxpktsize); - result = -EINVAL; - goto error; + if ((rpipe->descr.bmAttribute & 0x3) == USB_ENDPOINT_XFER_ISOC) { + int index = 0; + + xfer->seg_size = maxpktsize; + xfer->segs = 0; + /* + * loop over urb->number_of_packets to determine how many + * xfer segments will be needed to send the isoc frames. + */ + while (index < urb->number_of_packets) { + int seg_size; /* don't care. */ + index += __wa_seg_calculate_isoc_frame_count(xfer, + index, &seg_size); + ++xfer->segs; + } + } else { + xfer->seg_size = le16_to_cpu(rpipe->descr.wBlocks) + * 1 << (xfer->wa->wa_descr->bRPipeBlockSize - 1); + /* Compute the segment size and make sure it is a multiple of + * the maxpktsize (WUSB1.0[8.3.3.1])...not really too much of + * a check (FIXME) */ + if (xfer->seg_size < maxpktsize) { + dev_err(dev, + "HW BUG? seg_size %zu smaller than maxpktsize %zu\n", + xfer->seg_size, maxpktsize); + result = -EINVAL; + goto error; + } + xfer->seg_size = (xfer->seg_size / maxpktsize) * maxpktsize; + xfer->segs = DIV_ROUND_UP(urb->transfer_buffer_length, + xfer->seg_size); + if (xfer->segs == 0 && *pxfer_type == WA_XFER_TYPE_CTL) + xfer->segs = 1; } - xfer->seg_size = (xfer->seg_size / maxpktsize) * maxpktsize; - xfer->segs = DIV_ROUND_UP(urb->transfer_buffer_length, xfer->seg_size); - if (xfer->segs >= WA_SEGS_MAX) { - dev_err(dev, "BUG? ops, number of segments %d bigger than %d\n", - (int)(urb->transfer_buffer_length / xfer->seg_size), + + if (xfer->segs > WA_SEGS_MAX) { + dev_err(dev, "BUG? oops, number of segments %zu bigger than %d\n", + (urb->transfer_buffer_length/xfer->seg_size), WA_SEGS_MAX); result = -EINVAL; goto error; } - if (xfer->segs == 0 && *pxfer_type == WA_XFER_TYPE_CTL) - xfer->segs = 1; error: return result; } +static void __wa_setup_isoc_packet_descr( + struct wa_xfer_packet_info_hwaiso *packet_desc, + struct wa_xfer *xfer, + struct wa_seg *seg) { + struct usb_iso_packet_descriptor *iso_frame_desc = + xfer->urb->iso_frame_desc; + int frame_index; + + /* populate isoc packet descriptor. */ + packet_desc->bPacketType = WA_XFER_ISO_PACKET_INFO; + packet_desc->wLength = cpu_to_le16(sizeof(*packet_desc) + + (sizeof(packet_desc->PacketLength[0]) * + seg->isoc_frame_count)); + for (frame_index = 0; frame_index < seg->isoc_frame_count; + ++frame_index) { + int offset_index = frame_index + seg->isoc_frame_offset; + packet_desc->PacketLength[frame_index] = + cpu_to_le16(iso_frame_desc[offset_index].length); + } +} + + /* Fill in the common request header and xfer-type specific data. */ static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer, struct wa_xfer_hdr *xfer_hdr0, @@ -466,12 +629,13 @@ static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer, size_t xfer_hdr_size) { struct wa_rpipe *rpipe = xfer->ep->hcpriv; + struct wa_seg *seg = xfer->seg[0]; - xfer_hdr0 = &xfer->seg[0]->xfer_hdr; + xfer_hdr0 = &seg->xfer_hdr; xfer_hdr0->bLength = xfer_hdr_size; xfer_hdr0->bRequestType = xfer_type; xfer_hdr0->wRPipe = rpipe->descr.wRPipeIndex; - xfer_hdr0->dwTransferID = wa_xfer_id(xfer); + xfer_hdr0->dwTransferID = wa_xfer_id_le32(xfer); xfer_hdr0->bTransferSegment = 0; switch (xfer_type) { case WA_XFER_TYPE_CTL: { @@ -484,8 +648,18 @@ static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer, } case WA_XFER_TYPE_BI: break; - case WA_XFER_TYPE_ISO: - printk(KERN_ERR "FIXME: ISOC not implemented\n"); + case WA_XFER_TYPE_ISO: { + struct wa_xfer_hwaiso *xfer_iso = + container_of(xfer_hdr0, struct wa_xfer_hwaiso, hdr); + struct wa_xfer_packet_info_hwaiso *packet_desc = + ((void *)xfer_iso) + xfer_hdr_size; + + /* populate the isoc section of the transfer request. */ + xfer_iso->dwNumOfPackets = cpu_to_le32(seg->isoc_frame_count); + /* populate isoc packet descriptor. */ + __wa_setup_isoc_packet_descr(packet_desc, xfer, seg); + break; + } default: BUG(); }; @@ -494,12 +668,12 @@ static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer, /* * Callback for the OUT data phase of the segment request * - * Check wa_seg_cb(); most comments also apply here because this + * Check wa_seg_tr_cb(); most comments also apply here because this * function does almost the same thing and they work closely * together. * * If the seg request has failed but this DTO phase has succeeded, - * wa_seg_cb() has already failed the segment and moved the + * wa_seg_tr_cb() has already failed the segment and moved the * status to WA_SEG_ERROR, so this will go through 'case 0' and * effectively do nothing. */ @@ -512,6 +686,139 @@ static void wa_seg_dto_cb(struct urb *urb) struct wa_rpipe *rpipe; unsigned long flags; unsigned rpipe_ready = 0; + int data_send_done = 1, release_dto = 0, holding_dto = 0; + u8 done = 0; + int result; + + /* free the sg if it was used. */ + kfree(urb->sg); + urb->sg = NULL; + + spin_lock_irqsave(&xfer->lock, flags); + wa = xfer->wa; + dev = &wa->usb_iface->dev; + if (usb_pipeisoc(xfer->urb->pipe)) { + /* Alereon HWA sends all isoc frames in a single transfer. */ + if (wa->quirks & WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC) + xfer->dto_isoc_frame_index += seg->isoc_frame_count; + else + xfer->dto_isoc_frame_index += 1; + if (xfer->dto_isoc_frame_index < seg->isoc_frame_count) { + data_send_done = 0; + holding_dto = 1; /* checked in error cases. */ + /* + * if this is the last isoc frame of the segment, we + * can release DTO after sending this frame. + */ + if ((xfer->dto_isoc_frame_index + 1) >= + seg->isoc_frame_count) + release_dto = 1; + } + dev_dbg(dev, "xfer 0x%08X#%u: isoc frame = %d, holding_dto = %d, release_dto = %d.\n", + wa_xfer_id(xfer), seg->index, + xfer->dto_isoc_frame_index, holding_dto, release_dto); + } + spin_unlock_irqrestore(&xfer->lock, flags); + + switch (urb->status) { + case 0: + spin_lock_irqsave(&xfer->lock, flags); + seg->result += urb->actual_length; + if (data_send_done) { + dev_dbg(dev, "xfer 0x%08X#%u: data out done (%zu bytes)\n", + wa_xfer_id(xfer), seg->index, seg->result); + if (seg->status < WA_SEG_PENDING) + seg->status = WA_SEG_PENDING; + } else { + /* should only hit this for isoc xfers. */ + /* + * Populate the dto URB with the next isoc frame buffer, + * send the URB and release DTO if we no longer need it. + */ + __wa_populate_dto_urb_isoc(xfer, seg, + seg->isoc_frame_offset + + xfer->dto_isoc_frame_index); + + /* resubmit the URB with the next isoc frame. */ + result = usb_submit_urb(seg->dto_urb, GFP_ATOMIC); + if (result < 0) { + dev_err(dev, "xfer 0x%08X#%u: DTO submit failed: %d\n", + wa_xfer_id(xfer), seg->index, result); + spin_unlock_irqrestore(&xfer->lock, flags); + goto error_dto_submit; + } + } + spin_unlock_irqrestore(&xfer->lock, flags); + if (release_dto) { + __wa_dto_put(wa); + wa_check_for_delayed_rpipes(wa); + } + break; + case -ECONNRESET: /* URB unlinked; no need to do anything */ + case -ENOENT: /* as it was done by the who unlinked us */ + if (holding_dto) { + __wa_dto_put(wa); + wa_check_for_delayed_rpipes(wa); + } + break; + default: /* Other errors ... */ + dev_err(dev, "xfer 0x%08X#%u: data out error %d\n", + wa_xfer_id(xfer), seg->index, urb->status); + goto error_default; + } + + return; + +error_dto_submit: +error_default: + spin_lock_irqsave(&xfer->lock, flags); + rpipe = xfer->ep->hcpriv; + if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS, + EDC_ERROR_TIMEFRAME)){ + dev_err(dev, "DTO: URB max acceptable errors exceeded, resetting device\n"); + wa_reset_all(wa); + } + if (seg->status != WA_SEG_ERROR) { + seg->status = WA_SEG_ERROR; + seg->result = urb->status; + xfer->segs_done++; + __wa_xfer_abort(xfer); + rpipe_ready = rpipe_avail_inc(rpipe); + done = __wa_xfer_is_done(xfer); + } + spin_unlock_irqrestore(&xfer->lock, flags); + if (holding_dto) { + __wa_dto_put(wa); + wa_check_for_delayed_rpipes(wa); + } + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + +} + +/* + * Callback for the isoc packet descriptor phase of the segment request + * + * Check wa_seg_tr_cb(); most comments also apply here because this + * function does almost the same thing and they work closely + * together. + * + * If the seg request has failed but this phase has succeeded, + * wa_seg_tr_cb() has already failed the segment and moved the + * status to WA_SEG_ERROR, so this will go through 'case 0' and + * effectively do nothing. + */ +static void wa_seg_iso_pack_desc_cb(struct urb *urb) +{ + struct wa_seg *seg = urb->context; + struct wa_xfer *xfer = seg->xfer; + struct wahc *wa; + struct device *dev; + struct wa_rpipe *rpipe; + unsigned long flags; + unsigned rpipe_ready = 0; u8 done = 0; switch (urb->status) { @@ -519,11 +826,10 @@ static void wa_seg_dto_cb(struct urb *urb) spin_lock_irqsave(&xfer->lock, flags); wa = xfer->wa; dev = &wa->usb_iface->dev; - dev_dbg(dev, "xfer %p#%u: data out done (%d bytes)\n", - xfer, seg->index, urb->actual_length); - if (seg->status < WA_SEG_PENDING) + dev_dbg(dev, "iso xfer %08X#%u: packet descriptor done\n", + wa_xfer_id(xfer), seg->index); + if (xfer->is_inbound && seg->status < WA_SEG_PENDING) seg->status = WA_SEG_PENDING; - seg->result = urb->actual_length; spin_unlock_irqrestore(&xfer->lock, flags); break; case -ECONNRESET: /* URB unlinked; no need to do anything */ @@ -534,15 +840,15 @@ static void wa_seg_dto_cb(struct urb *urb) wa = xfer->wa; dev = &wa->usb_iface->dev; rpipe = xfer->ep->hcpriv; - dev_dbg(dev, "xfer %p#%u: data out error %d\n", - xfer, seg->index, urb->status); + pr_err_ratelimited("iso xfer %08X#%u: packet descriptor error %d\n", + wa_xfer_id(xfer), seg->index, urb->status); if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)){ - dev_err(dev, "DTO: URB max acceptable errors " - "exceeded, resetting device\n"); + dev_err(dev, "DTO: URB max acceptable errors exceeded, resetting device\n"); wa_reset_all(wa); } if (seg->status != WA_SEG_ERROR) { + usb_unlink_urb(seg->dto_urb); seg->status = WA_SEG_ERROR; seg->result = urb->status; xfer->segs_done++; @@ -572,11 +878,11 @@ static void wa_seg_dto_cb(struct urb *urb) * We have to check before setting the status to WA_SEG_PENDING * because sometimes the xfer result callback arrives before this * callback (geeeeeeze), so it might happen that we are already in - * another state. As well, we don't set it if the transfer is inbound, + * another state. As well, we don't set it if the transfer is not inbound, * as in that case, wa_seg_dto_cb will do it when the OUT data phase * finishes. */ -static void wa_seg_cb(struct urb *urb) +static void wa_seg_tr_cb(struct urb *urb) { struct wa_seg *seg = urb->context; struct wa_xfer *xfer = seg->xfer; @@ -592,8 +898,11 @@ static void wa_seg_cb(struct urb *urb) spin_lock_irqsave(&xfer->lock, flags); wa = xfer->wa; dev = &wa->usb_iface->dev; - dev_dbg(dev, "xfer %p#%u: request done\n", xfer, seg->index); - if (xfer->is_inbound && seg->status < WA_SEG_PENDING) + dev_dbg(dev, "xfer %p ID 0x%08X#%u: request done\n", + xfer, wa_xfer_id(xfer), seg->index); + if (xfer->is_inbound && + seg->status < WA_SEG_PENDING && + !(usb_pipeisoc(xfer->urb->pipe))) seg->status = WA_SEG_PENDING; spin_unlock_irqrestore(&xfer->lock, flags); break; @@ -606,14 +915,16 @@ static void wa_seg_cb(struct urb *urb) dev = &wa->usb_iface->dev; rpipe = xfer->ep->hcpriv; if (printk_ratelimit()) - dev_err(dev, "xfer %p#%u: request error %d\n", - xfer, seg->index, urb->status); + dev_err(dev, "xfer %p ID 0x%08X#%u: request error %d\n", + xfer, wa_xfer_id(xfer), seg->index, + urb->status); if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS, EDC_ERROR_TIMEFRAME)){ dev_err(dev, "DTO: URB max acceptable errors " "exceeded, resetting device\n"); wa_reset_all(wa); } + usb_unlink_urb(seg->isoc_pack_desc_urb); usb_unlink_urb(seg->dto_urb); seg->status = WA_SEG_ERROR; seg->result = urb->status; @@ -629,9 +940,11 @@ static void wa_seg_cb(struct urb *urb) } } -/* allocate an SG list to store bytes_to_transfer bytes and copy the +/* + * Allocate an SG list to store bytes_to_transfer bytes and copy the * subset of the in_sg that matches the buffer subset - * we are about to transfer. */ + * we are about to transfer. + */ static struct scatterlist *wa_xfer_create_subset_sg(struct scatterlist *in_sg, const unsigned int bytes_transferred, const unsigned int bytes_to_transfer, unsigned int *out_num_sgs) @@ -710,6 +1023,75 @@ static struct scatterlist *wa_xfer_create_subset_sg(struct scatterlist *in_sg, } /* + * Populate DMA buffer info for the isoc dto urb. + */ +static void __wa_populate_dto_urb_isoc(struct wa_xfer *xfer, + struct wa_seg *seg, int curr_iso_frame) +{ + seg->dto_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + seg->dto_urb->sg = NULL; + seg->dto_urb->num_sgs = 0; + /* dto urb buffer address pulled from iso_frame_desc. */ + seg->dto_urb->transfer_dma = xfer->urb->transfer_dma + + xfer->urb->iso_frame_desc[curr_iso_frame].offset; + /* The Alereon HWA sends a single URB with all isoc segs. */ + if (xfer->wa->quirks & WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC) + seg->dto_urb->transfer_buffer_length = seg->isoc_size; + else + seg->dto_urb->transfer_buffer_length = + xfer->urb->iso_frame_desc[curr_iso_frame].length; +} + +/* + * Populate buffer ptr and size, DMA buffer or SG list for the dto urb. + */ +static int __wa_populate_dto_urb(struct wa_xfer *xfer, + struct wa_seg *seg, size_t buf_itr_offset, size_t buf_itr_size) +{ + int result = 0; + + if (xfer->is_dma) { + seg->dto_urb->transfer_dma = + xfer->urb->transfer_dma + buf_itr_offset; + seg->dto_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + seg->dto_urb->sg = NULL; + seg->dto_urb->num_sgs = 0; + } else { + /* do buffer or SG processing. */ + seg->dto_urb->transfer_flags &= + ~URB_NO_TRANSFER_DMA_MAP; + /* this should always be 0 before a resubmit. */ + seg->dto_urb->num_mapped_sgs = 0; + + if (xfer->urb->transfer_buffer) { + seg->dto_urb->transfer_buffer = + xfer->urb->transfer_buffer + + buf_itr_offset; + seg->dto_urb->sg = NULL; + seg->dto_urb->num_sgs = 0; + } else { + seg->dto_urb->transfer_buffer = NULL; + + /* + * allocate an SG list to store seg_size bytes + * and copy the subset of the xfer->urb->sg that + * matches the buffer subset we are about to + * read. + */ + seg->dto_urb->sg = wa_xfer_create_subset_sg( + xfer->urb->sg, + buf_itr_offset, buf_itr_size, + &(seg->dto_urb->num_sgs)); + if (!(seg->dto_urb->sg)) + result = -ENOMEM; + } + } + seg->dto_urb->transfer_buffer_length = buf_itr_size; + + return result; +} + +/* * Allocate the segs array and initialize each of them * * The segments are freed by wa_xfer_destroy() when the xfer use count @@ -719,13 +1101,14 @@ static struct scatterlist *wa_xfer_create_subset_sg(struct scatterlist *in_sg, */ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) { - int result, cnt; + int result, cnt, iso_frame_offset; size_t alloc_size = sizeof(*xfer->seg[0]) - sizeof(xfer->seg[0]->xfer_hdr) + xfer_hdr_size; struct usb_device *usb_dev = xfer->wa->usb_dev; const struct usb_endpoint_descriptor *dto_epd = xfer->wa->dto_epd; struct wa_seg *seg; size_t buf_itr, buf_size, buf_itr_size; + int xfer_isoc_frame_offset = 0; result = -ENOMEM; xfer->seg = kcalloc(xfer->segs, sizeof(xfer->seg[0]), GFP_ATOMIC); @@ -733,18 +1116,35 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) goto error_segs_kzalloc; buf_itr = 0; buf_size = xfer->urb->transfer_buffer_length; + iso_frame_offset = 0; for (cnt = 0; cnt < xfer->segs; cnt++) { - seg = xfer->seg[cnt] = kmalloc(alloc_size, GFP_ATOMIC); + size_t iso_pkt_descr_size = 0; + int seg_isoc_frame_count = 0, seg_isoc_size = 0; + + if (usb_pipeisoc(xfer->urb->pipe)) { + seg_isoc_frame_count = + __wa_seg_calculate_isoc_frame_count(xfer, + xfer_isoc_frame_offset, &seg_isoc_size); + + iso_pkt_descr_size = + sizeof(struct wa_xfer_packet_info_hwaiso) + + (seg_isoc_frame_count * sizeof(__le16)); + } + seg = xfer->seg[cnt] = kmalloc(alloc_size + iso_pkt_descr_size, + GFP_ATOMIC); if (seg == NULL) goto error_seg_kmalloc; wa_seg_init(seg); seg->xfer = xfer; seg->index = cnt; - usb_fill_bulk_urb(&seg->urb, usb_dev, + seg->isoc_frame_count = seg_isoc_frame_count; + seg->isoc_frame_offset = xfer_isoc_frame_offset; + seg->isoc_size = seg_isoc_size; + usb_fill_bulk_urb(&seg->tr_urb, usb_dev, usb_sndbulkpipe(usb_dev, dto_epd->bEndpointAddress), &seg->xfer_hdr, xfer_hdr_size, - wa_seg_cb, seg); + wa_seg_tr_cb, seg); buf_itr_size = min(buf_size, xfer->seg_size); if (xfer->is_inbound == 0 && buf_size > 0) { /* outbound data. */ @@ -756,69 +1156,64 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size) usb_sndbulkpipe(usb_dev, dto_epd->bEndpointAddress), NULL, 0, wa_seg_dto_cb, seg); - if (xfer->is_dma) { - seg->dto_urb->transfer_dma = - xfer->urb->transfer_dma + buf_itr; - seg->dto_urb->transfer_flags |= - URB_NO_TRANSFER_DMA_MAP; - seg->dto_urb->transfer_buffer = NULL; - seg->dto_urb->sg = NULL; - seg->dto_urb->num_sgs = 0; + + if (usb_pipeisoc(xfer->urb->pipe)) { + /* iso packet descriptor. */ + seg->isoc_pack_desc_urb = + usb_alloc_urb(0, GFP_ATOMIC); + if (seg->isoc_pack_desc_urb == NULL) + goto error_iso_pack_desc_alloc; + /* + * The buffer for the isoc packet descriptor + * after the transfer request header in the + * segment object memory buffer. + */ + usb_fill_bulk_urb( + seg->isoc_pack_desc_urb, usb_dev, + usb_sndbulkpipe(usb_dev, + dto_epd->bEndpointAddress), + (void *)(&seg->xfer_hdr) + + xfer_hdr_size, + iso_pkt_descr_size, + wa_seg_iso_pack_desc_cb, seg); + + /* + * Fill in the xfer buffer information for the + * first isoc frame. Subsequent frames in this + * segment will be filled in and sent from the + * DTO completion routine, if needed. + */ + __wa_populate_dto_urb_isoc(xfer, seg, + xfer_isoc_frame_offset); + /* adjust starting frame offset for next seg. */ + xfer_isoc_frame_offset += seg_isoc_frame_count; } else { - /* do buffer or SG processing. */ - seg->dto_urb->transfer_flags &= - ~URB_NO_TRANSFER_DMA_MAP; - /* this should always be 0 before a resubmit. */ - seg->dto_urb->num_mapped_sgs = 0; - - if (xfer->urb->transfer_buffer) { - seg->dto_urb->transfer_buffer = - xfer->urb->transfer_buffer + - buf_itr; - seg->dto_urb->sg = NULL; - seg->dto_urb->num_sgs = 0; - } else { - /* allocate an SG list to store seg_size - bytes and copy the subset of the - xfer->urb->sg that matches the - buffer subset we are about to read. - */ - seg->dto_urb->sg = - wa_xfer_create_subset_sg( - xfer->urb->sg, - buf_itr, buf_itr_size, - &(seg->dto_urb->num_sgs)); - - if (!(seg->dto_urb->sg)) { - seg->dto_urb->num_sgs = 0; - goto error_sg_alloc; - } - - seg->dto_urb->transfer_buffer = NULL; - } + /* fill in the xfer buffer information. */ + result = __wa_populate_dto_urb(xfer, seg, + buf_itr, buf_itr_size); + if (result < 0) + goto error_seg_outbound_populate; + + buf_itr += buf_itr_size; + buf_size -= buf_itr_size; } - seg->dto_urb->transfer_buffer_length = buf_itr_size; } seg->status = WA_SEG_READY; - buf_itr += buf_itr_size; - buf_size -= buf_itr_size; } return 0; -error_sg_alloc: + /* + * Free the memory for the current segment which failed to init. + * Use the fact that cnt is left at were it failed. The remaining + * segments will be cleaned up by wa_xfer_destroy. + */ +error_iso_pack_desc_alloc: +error_seg_outbound_populate: usb_free_urb(xfer->seg[cnt]->dto_urb); error_dto_alloc: kfree(xfer->seg[cnt]); - cnt--; + xfer->seg[cnt] = NULL; error_seg_kmalloc: - /* use the fact that cnt is left at were it failed */ - for (; cnt >= 0; cnt--) { - if (xfer->seg[cnt] && xfer->is_inbound == 0) { - usb_free_urb(xfer->seg[cnt]->dto_urb); - kfree(xfer->seg[cnt]->dto_urb->sg); - } - kfree(xfer->seg[cnt]); - } error_segs_kzalloc: return result; } @@ -856,21 +1251,45 @@ static int __wa_xfer_setup(struct wa_xfer *xfer, struct urb *urb) wa_xfer_id_init(xfer); __wa_xfer_setup_hdr0(xfer, xfer_hdr0, xfer_type, xfer_hdr_size); - /* Fill remainig headers */ + /* Fill remaining headers */ xfer_hdr = xfer_hdr0; - transfer_size = urb->transfer_buffer_length; - xfer_hdr0->dwTransferLength = transfer_size > xfer->seg_size ? - xfer->seg_size : transfer_size; - transfer_size -= xfer->seg_size; - for (cnt = 1; cnt < xfer->segs; cnt++) { - xfer_hdr = &xfer->seg[cnt]->xfer_hdr; - memcpy(xfer_hdr, xfer_hdr0, xfer_hdr_size); - xfer_hdr->bTransferSegment = cnt; - xfer_hdr->dwTransferLength = transfer_size > xfer->seg_size ? - cpu_to_le32(xfer->seg_size) - : cpu_to_le32(transfer_size); - xfer->seg[cnt]->status = WA_SEG_READY; + if (xfer_type == WA_XFER_TYPE_ISO) { + xfer_hdr0->dwTransferLength = + cpu_to_le32(xfer->seg[0]->isoc_size); + for (cnt = 1; cnt < xfer->segs; cnt++) { + struct wa_xfer_packet_info_hwaiso *packet_desc; + struct wa_seg *seg = xfer->seg[cnt]; + + xfer_hdr = &seg->xfer_hdr; + packet_desc = ((void *)xfer_hdr) + xfer_hdr_size; + /* + * Copy values from the 0th header. Segment specific + * values are set below. + */ + memcpy(xfer_hdr, xfer_hdr0, xfer_hdr_size); + xfer_hdr->bTransferSegment = cnt; + xfer_hdr->dwTransferLength = + cpu_to_le32(seg->isoc_size); + __wa_setup_isoc_packet_descr(packet_desc, xfer, seg); + seg->status = WA_SEG_READY; + } + } else { + transfer_size = urb->transfer_buffer_length; + xfer_hdr0->dwTransferLength = transfer_size > xfer->seg_size ? + cpu_to_le32(xfer->seg_size) : + cpu_to_le32(transfer_size); transfer_size -= xfer->seg_size; + for (cnt = 1; cnt < xfer->segs; cnt++) { + xfer_hdr = &xfer->seg[cnt]->xfer_hdr; + memcpy(xfer_hdr, xfer_hdr0, xfer_hdr_size); + xfer_hdr->bTransferSegment = cnt; + xfer_hdr->dwTransferLength = + transfer_size > xfer->seg_size ? + cpu_to_le32(xfer->seg_size) + : cpu_to_le32(transfer_size); + xfer->seg[cnt]->status = WA_SEG_READY; + transfer_size -= xfer->seg_size; + } } xfer_hdr->bTransferSegment |= 0x80; /* this is the last segment */ result = 0; @@ -885,20 +1304,46 @@ error_setup_sizes: * rpipe->seg_lock is held! */ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer, - struct wa_seg *seg) + struct wa_seg *seg, int *dto_done) { int result; - result = usb_submit_urb(&seg->urb, GFP_ATOMIC); + + /* default to done unless we encounter a multi-frame isoc segment. */ + *dto_done = 1; + + /* submit the transfer request. */ + result = usb_submit_urb(&seg->tr_urb, GFP_ATOMIC); if (result < 0) { - printk(KERN_ERR "xfer %p#%u: REQ submit failed: %d\n", - xfer, seg->index, result); + pr_err("%s: xfer %p#%u: REQ submit failed: %d\n", + __func__, xfer, seg->index, result); goto error_seg_submit; } + /* submit the isoc packet descriptor if present. */ + if (seg->isoc_pack_desc_urb) { + struct wahc *wa = xfer->wa; + + result = usb_submit_urb(seg->isoc_pack_desc_urb, GFP_ATOMIC); + if (result < 0) { + pr_err("%s: xfer %p#%u: ISO packet descriptor submit failed: %d\n", + __func__, xfer, seg->index, result); + goto error_iso_pack_desc_submit; + } + xfer->dto_isoc_frame_index = 0; + /* + * If this segment contains more than one isoc frame, hold + * onto the dto resource until we send all frames. + * Only applies to non-Alereon devices. + */ + if (((wa->quirks & WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC) == 0) + && (seg->isoc_frame_count > 1)) + *dto_done = 0; + } + /* submit the out data if this is an out request. */ if (seg->dto_urb) { result = usb_submit_urb(seg->dto_urb, GFP_ATOMIC); if (result < 0) { - printk(KERN_ERR "xfer %p#%u: DTO submit failed: %d\n", - xfer, seg->index, result); + pr_err("%s: xfer %p#%u: DTO submit failed: %d\n", + __func__, xfer, seg->index, result); goto error_dto_submit; } } @@ -907,38 +1352,48 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer, return 0; error_dto_submit: - usb_unlink_urb(&seg->urb); + usb_unlink_urb(seg->isoc_pack_desc_urb); +error_iso_pack_desc_submit: + usb_unlink_urb(&seg->tr_urb); error_seg_submit: seg->status = WA_SEG_ERROR; seg->result = result; + *dto_done = 1; return result; } /* - * Execute more queued request segments until the maximum concurrent allowed + * Execute more queued request segments until the maximum concurrent allowed. + * Return true if the DTO resource was acquired and released. * * The ugly unlock/lock sequence on the error path is needed as the * xfer->lock normally nests the seg_lock and not viceversa. - * */ -static void wa_xfer_delayed_run(struct wa_rpipe *rpipe) +static int __wa_xfer_delayed_run(struct wa_rpipe *rpipe, int *dto_waiting) { - int result; + int result, dto_acquired = 0, dto_done = 0; struct device *dev = &rpipe->wa->usb_iface->dev; struct wa_seg *seg; struct wa_xfer *xfer; unsigned long flags; + *dto_waiting = 0; + spin_lock_irqsave(&rpipe->seg_lock, flags); while (atomic_read(&rpipe->segs_available) > 0 - && !list_empty(&rpipe->seg_list)) { + && !list_empty(&rpipe->seg_list) + && (dto_acquired = __wa_dto_try_get(rpipe->wa))) { seg = list_first_entry(&(rpipe->seg_list), struct wa_seg, list_node); list_del(&seg->list_node); xfer = seg->xfer; - result = __wa_seg_submit(rpipe, xfer, seg); - dev_dbg(dev, "xfer %p#%u submitted from delayed [%d segments available] %d\n", - xfer, seg->index, atomic_read(&rpipe->segs_available), result); + result = __wa_seg_submit(rpipe, xfer, seg, &dto_done); + /* release the dto resource if this RPIPE is done with it. */ + if (dto_done) + __wa_dto_put(rpipe->wa); + dev_dbg(dev, "xfer %p ID %08X#%u submitted from delayed [%d segments available] %d\n", + xfer, wa_xfer_id(xfer), seg->index, + atomic_read(&rpipe->segs_available), result); if (unlikely(result < 0)) { spin_unlock_irqrestore(&rpipe->seg_lock, flags); spin_lock_irqsave(&xfer->lock, flags); @@ -948,7 +1403,37 @@ static void wa_xfer_delayed_run(struct wa_rpipe *rpipe) spin_lock_irqsave(&rpipe->seg_lock, flags); } } + /* + * Mark this RPIPE as waiting if dto was not acquired, there are + * delayed segs and no active transfers to wake us up later. + */ + if (!dto_acquired && !list_empty(&rpipe->seg_list) + && (atomic_read(&rpipe->segs_available) == + le16_to_cpu(rpipe->descr.wRequests))) + *dto_waiting = 1; + spin_unlock_irqrestore(&rpipe->seg_lock, flags); + + return dto_done; +} + +static void wa_xfer_delayed_run(struct wa_rpipe *rpipe) +{ + int dto_waiting; + int dto_done = __wa_xfer_delayed_run(rpipe, &dto_waiting); + + /* + * If this RPIPE is waiting on the DTO resource, add it to the tail of + * the waiting list. + * Otherwise, if the WA DTO resource was acquired and released by + * __wa_xfer_delayed_run, another RPIPE may have attempted to acquire + * DTO and failed during that time. Check the delayed list and process + * any waiters. Start searching from the next RPIPE index. + */ + if (dto_waiting) + wa_add_delayed_rpipe(rpipe->wa, rpipe); + else if (dto_done) + wa_check_for_delayed_rpipes(rpipe->wa); } /* @@ -960,7 +1445,7 @@ static void wa_xfer_delayed_run(struct wa_rpipe *rpipe) */ static int __wa_xfer_submit(struct wa_xfer *xfer) { - int result; + int result, dto_acquired = 0, dto_done = 0, dto_waiting = 0; struct wahc *wa = xfer->wa; struct device *dev = &wa->usb_iface->dev; unsigned cnt; @@ -979,27 +1464,58 @@ static int __wa_xfer_submit(struct wa_xfer *xfer) result = 0; spin_lock_irqsave(&rpipe->seg_lock, flags); for (cnt = 0; cnt < xfer->segs; cnt++) { + int delay_seg = 1; + available = atomic_read(&rpipe->segs_available); empty = list_empty(&rpipe->seg_list); seg = xfer->seg[cnt]; - dev_dbg(dev, "xfer %p#%u: available %u empty %u (%s)\n", - xfer, cnt, available, empty, - available == 0 || !empty ? "delayed" : "submitted"); - if (available == 0 || !empty) { - dev_dbg(dev, "xfer %p#%u: delayed\n", xfer, cnt); + if (available && empty) { + /* + * Only attempt to acquire DTO if we have a segment + * to send. + */ + dto_acquired = __wa_dto_try_get(rpipe->wa); + if (dto_acquired) { + delay_seg = 0; + result = __wa_seg_submit(rpipe, xfer, seg, + &dto_done); + dev_dbg(dev, "xfer %p ID 0x%08X#%u: available %u empty %u submitted\n", + xfer, wa_xfer_id(xfer), cnt, available, + empty); + if (dto_done) + __wa_dto_put(rpipe->wa); + + if (result < 0) { + __wa_xfer_abort(xfer); + goto error_seg_submit; + } + } + } + + if (delay_seg) { + dev_dbg(dev, "xfer %p ID 0x%08X#%u: available %u empty %u delayed\n", + xfer, wa_xfer_id(xfer), cnt, available, empty); seg->status = WA_SEG_DELAYED; list_add_tail(&seg->list_node, &rpipe->seg_list); - } else { - result = __wa_seg_submit(rpipe, xfer, seg); - if (result < 0) { - __wa_xfer_abort(xfer); - goto error_seg_submit; - } } xfer->segs_submitted++; } error_seg_submit: + /* + * Mark this RPIPE as waiting if dto was not acquired, there are + * delayed segs and no active transfers to wake us up later. + */ + if (!dto_acquired && !list_empty(&rpipe->seg_list) + && (atomic_read(&rpipe->segs_available) == + le16_to_cpu(rpipe->descr.wRequests))) + dto_waiting = 1; spin_unlock_irqrestore(&rpipe->seg_lock, flags); + + if (dto_waiting) + wa_add_delayed_rpipe(rpipe->wa, rpipe); + else if (dto_done) + wa_check_for_delayed_rpipes(rpipe->wa); + return result; } @@ -1025,7 +1541,7 @@ error_seg_submit: * result never kicks in, the xfer will timeout from the USB code and * dequeue() will be called. */ -static void wa_urb_enqueue_b(struct wa_xfer *xfer) +static int wa_urb_enqueue_b(struct wa_xfer *xfer) { int result; unsigned long flags; @@ -1036,18 +1552,22 @@ static void wa_urb_enqueue_b(struct wa_xfer *xfer) unsigned done; result = rpipe_get_by_ep(wa, xfer->ep, urb, xfer->gfp); - if (result < 0) + if (result < 0) { + pr_err("%s: error_rpipe_get\n", __func__); goto error_rpipe_get; + } result = -ENODEV; /* FIXME: segmentation broken -- kills DWA */ mutex_lock(&wusbhc->mutex); /* get a WUSB dev */ if (urb->dev == NULL) { mutex_unlock(&wusbhc->mutex); + pr_err("%s: error usb dev gone\n", __func__); goto error_dev_gone; } wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, urb->dev); if (wusb_dev == NULL) { mutex_unlock(&wusbhc->mutex); + pr_err("%s: error wusb dev gone\n", __func__); goto error_dev_gone; } mutex_unlock(&wusbhc->mutex); @@ -1055,21 +1575,28 @@ static void wa_urb_enqueue_b(struct wa_xfer *xfer) spin_lock_irqsave(&xfer->lock, flags); xfer->wusb_dev = wusb_dev; result = urb->status; - if (urb->status != -EINPROGRESS) + if (urb->status != -EINPROGRESS) { + pr_err("%s: error_dequeued\n", __func__); goto error_dequeued; + } result = __wa_xfer_setup(xfer, urb); - if (result < 0) + if (result < 0) { + pr_err("%s: error_xfer_setup\n", __func__); goto error_xfer_setup; + } result = __wa_xfer_submit(xfer); - if (result < 0) + if (result < 0) { + pr_err("%s: error_xfer_submit\n", __func__); goto error_xfer_submit; + } spin_unlock_irqrestore(&xfer->lock, flags); - return; + return 0; - /* this is basically wa_xfer_completion() broken up wa_xfer_giveback() - * does a wa_xfer_put() that will call wa_xfer_destroy() and clean - * upundo setup(). + /* + * this is basically wa_xfer_completion() broken up wa_xfer_giveback() + * does a wa_xfer_put() that will call wa_xfer_destroy() and undo + * setup(). */ error_xfer_setup: error_dequeued: @@ -1081,8 +1608,7 @@ error_dev_gone: rpipe_put(xfer->ep->hcpriv); error_rpipe_get: xfer->result = result; - wa_xfer_giveback(xfer); - return; + return result; error_xfer_submit: done = __wa_xfer_is_done(xfer); @@ -1090,6 +1616,8 @@ error_xfer_submit: spin_unlock_irqrestore(&xfer->lock, flags); if (done) wa_xfer_completion(xfer); + /* return success since the completion routine will run. */ + return 0; } /* @@ -1123,7 +1651,8 @@ void wa_urb_enqueue_run(struct work_struct *ws) list_del_init(&xfer->list_node); urb = xfer->urb; - wa_urb_enqueue_b(xfer); + if (wa_urb_enqueue_b(xfer) < 0) + wa_xfer_giveback(xfer); usb_put_urb(urb); /* taken when queuing */ } } @@ -1229,7 +1758,19 @@ int wa_urb_enqueue(struct wahc *wa, struct usb_host_endpoint *ep, spin_unlock_irqrestore(&wa->xfer_list_lock, my_flags); queue_work(wusbd, &wa->xfer_enqueue_work); } else { - wa_urb_enqueue_b(xfer); + result = wa_urb_enqueue_b(xfer); + if (result < 0) { + /* + * URB submit/enqueue failed. Clean up, return an + * error and do not run the callback. This avoids + * an infinite submit/complete loop. + */ + dev_err(dev, "%s: URB enqueue failed: %d\n", + __func__, result); + wa_put(xfer->wa); + wa_xfer_put(xfer); + return result; + } } return 0; @@ -1264,7 +1805,7 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb) struct wa_xfer *xfer; struct wa_seg *seg; struct wa_rpipe *rpipe; - unsigned cnt; + unsigned cnt, done = 0, xfer_abort_pending; unsigned rpipe_ready = 0; xfer = urb->hcpriv; @@ -1278,6 +1819,7 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb) goto out; } spin_lock_irqsave(&xfer->lock, flags); + pr_debug("%s: DEQUEUE xfer id 0x%08X\n", __func__, wa_xfer_id(xfer)); rpipe = xfer->ep->hcpriv; if (rpipe == NULL) { pr_debug("%s: xfer id 0x%08X has no RPIPE. %s", @@ -1293,9 +1835,11 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb) if (xfer->seg == NULL) /* still hasn't reached */ goto out_unlock; /* setup(), enqueue_b() completes */ /* Ok, the xfer is in flight already, it's been setup and submitted.*/ - __wa_xfer_abort(xfer); + xfer_abort_pending = __wa_xfer_abort(xfer) >= 0; for (cnt = 0; cnt < xfer->segs; cnt++) { seg = xfer->seg[cnt]; + pr_debug("%s: xfer id 0x%08X#%d status = %d\n", + __func__, wa_xfer_id(xfer), cnt, seg->status); switch (seg->status) { case WA_SEG_NOTREADY: case WA_SEG_READY: @@ -1304,42 +1848,50 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb) WARN_ON(1); break; case WA_SEG_DELAYED: + /* + * delete from rpipe delayed list. If no segments on + * this xfer have been submitted, __wa_xfer_is_done will + * trigger a giveback below. Otherwise, the submitted + * segments will be completed in the DTI interrupt. + */ seg->status = WA_SEG_ABORTED; spin_lock_irqsave(&rpipe->seg_lock, flags2); list_del(&seg->list_node); xfer->segs_done++; - rpipe_ready = rpipe_avail_inc(rpipe); spin_unlock_irqrestore(&rpipe->seg_lock, flags2); break; - case WA_SEG_SUBMITTED: - seg->status = WA_SEG_ABORTED; - usb_unlink_urb(&seg->urb); - if (xfer->is_inbound == 0) - usb_unlink_urb(seg->dto_urb); - xfer->segs_done++; - rpipe_ready = rpipe_avail_inc(rpipe); - break; - case WA_SEG_PENDING: - seg->status = WA_SEG_ABORTED; - xfer->segs_done++; - rpipe_ready = rpipe_avail_inc(rpipe); - break; - case WA_SEG_DTI_PENDING: - usb_unlink_urb(wa->dti_urb); - seg->status = WA_SEG_ABORTED; - xfer->segs_done++; - rpipe_ready = rpipe_avail_inc(rpipe); - break; case WA_SEG_DONE: case WA_SEG_ERROR: case WA_SEG_ABORTED: break; + /* + * In the states below, the HWA device already knows + * about the transfer. If an abort request was sent, + * allow the HWA to process it and wait for the + * results. Otherwise, the DTI state and seg completed + * counts can get out of sync. + */ + case WA_SEG_SUBMITTED: + case WA_SEG_PENDING: + case WA_SEG_DTI_PENDING: + /* + * Check if the abort was successfully sent. This could + * be false if the HWA has been removed but we haven't + * gotten the disconnect notification yet. + */ + if (!xfer_abort_pending) { + seg->status = WA_SEG_ABORTED; + rpipe_ready = rpipe_avail_inc(rpipe); + xfer->segs_done++; + } + break; } } xfer->result = urb->status; /* -ENOENT or -ECONNRESET */ - __wa_xfer_is_done(xfer); + done = __wa_xfer_is_done(xfer); spin_unlock_irqrestore(&xfer->lock, flags); - wa_xfer_completion(xfer); + if (done) + wa_xfer_completion(xfer); if (rpipe_ready) wa_xfer_delayed_run(rpipe); return 0; @@ -1410,13 +1962,56 @@ static int wa_xfer_status_to_errno(u8 status) } /* + * If a last segment flag and/or a transfer result error is encountered, + * no other segment transfer results will be returned from the device. + * Mark the remaining submitted or pending xfers as completed so that + * the xfer will complete cleanly. + */ +static void wa_complete_remaining_xfer_segs(struct wa_xfer *xfer, + struct wa_seg *incoming_seg) +{ + int index; + struct wa_rpipe *rpipe = xfer->ep->hcpriv; + + for (index = incoming_seg->index + 1; index < xfer->segs_submitted; + index++) { + struct wa_seg *current_seg = xfer->seg[index]; + + BUG_ON(current_seg == NULL); + + switch (current_seg->status) { + case WA_SEG_SUBMITTED: + case WA_SEG_PENDING: + case WA_SEG_DTI_PENDING: + rpipe_avail_inc(rpipe); + /* + * do not increment RPIPE avail for the WA_SEG_DELAYED case + * since it has not been submitted to the RPIPE. + */ + case WA_SEG_DELAYED: + xfer->segs_done++; + current_seg->status = incoming_seg->status; + break; + case WA_SEG_ABORTED: + break; + default: + WARN(1, "%s: xfer 0x%08X#%d. bad seg status = %d\n", + __func__, wa_xfer_id(xfer), index, + current_seg->status); + break; + } + } +} + +/* * Process a xfer result completion message * - * inbound transfers: need to schedule a DTI read + * inbound transfers: need to schedule a buf_in_urb read * * FIXME: this function needs to be broken up in parts */ -static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer) +static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer, + struct wa_xfer_result *xfer_result) { int result; struct device *dev = &wa->usb_iface->dev; @@ -1424,8 +2019,7 @@ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer) u8 seg_idx; struct wa_seg *seg; struct wa_rpipe *rpipe; - struct wa_xfer_result *xfer_result = wa->xfer_result; - u8 done = 0; + unsigned done = 0; u8 usb_status; unsigned rpipe_ready = 0; @@ -1436,8 +2030,8 @@ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer) seg = xfer->seg[seg_idx]; rpipe = xfer->ep->hcpriv; usb_status = xfer_result->bTransferStatus; - dev_dbg(dev, "xfer %p#%u: bTransferStatus 0x%02x (seg status %u)\n", - xfer, seg_idx, usb_status, seg->status); + dev_dbg(dev, "xfer %p ID 0x%08X#%u: bTransferStatus 0x%02x (seg status %u)\n", + xfer, wa_xfer_id(xfer), seg_idx, usb_status, seg->status); if (seg->status == WA_SEG_ABORTED || seg->status == WA_SEG_ERROR) /* already handled */ goto segment_aborted; @@ -1453,12 +2047,19 @@ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer) seg->result = wa_xfer_status_to_errno(usb_status); dev_err(dev, "DTI: xfer %p#:%08X:%u failed (0x%02x)\n", xfer, xfer->id, seg->index, usb_status); + seg->status = ((usb_status & 0x7F) == WA_XFER_STATUS_ABORTED) ? + WA_SEG_ABORTED : WA_SEG_ERROR; goto error_complete; } /* FIXME: we ignore warnings, tally them for stats */ if (usb_status & 0x40) /* Warning?... */ usb_status = 0; /* ... pass */ - if (xfer->is_inbound) { /* IN data phase: read to buffer */ + if (usb_pipeisoc(xfer->urb->pipe)) { + /* set up WA state to read the isoc packet status next. */ + wa->dti_isoc_xfer_in_progress = wa_xfer_id(xfer); + wa->dti_isoc_xfer_seg = seg_idx; + wa->dti_state = WA_DTI_ISOC_PACKET_STATUS_PENDING; + } else if (xfer->is_inbound) { /* IN data phase: read to buffer */ seg->status = WA_SEG_DTI_PENDING; BUG_ON(wa->buf_in_urb->status == -EINPROGRESS); /* this should always be 0 before a resubmit. */ @@ -1535,12 +2136,14 @@ error_submit_buf_in: xfer, seg_idx, result); seg->result = result; kfree(wa->buf_in_urb->sg); + wa->buf_in_urb->sg = NULL; error_sg_alloc: __wa_xfer_abort(xfer); -error_complete: seg->status = WA_SEG_ERROR; +error_complete: xfer->segs_done++; rpipe_ready = rpipe_avail_inc(rpipe); + wa_complete_remaining_xfer_segs(xfer, seg); done = __wa_xfer_is_done(xfer); /* * queue work item to clear STALL for control endpoints. @@ -1552,10 +2155,8 @@ error_complete: dev_info(dev, "Control EP stall. Queue delayed work.\n"); spin_lock_irq(&wa->xfer_list_lock); - /* remove xfer from xfer_list. */ - list_del(&xfer->list_node); - /* add xfer to xfer_errored_list. */ - list_add_tail(&xfer->list_node, &wa->xfer_errored_list); + /* move xfer from xfer_list to xfer_errored_list. */ + list_move_tail(&xfer->list_node, &wa->xfer_errored_list); spin_unlock_irq(&wa->xfer_list_lock); spin_unlock_irqrestore(&xfer->lock, flags); queue_work(wusbd, &wa->xfer_error_work); @@ -1587,6 +2188,90 @@ segment_aborted: } /* + * Process a isochronous packet status message + * + * inbound transfers: need to schedule a buf_in_urb read + */ +static void wa_process_iso_packet_status(struct wahc *wa, struct urb *urb) +{ + struct device *dev = &wa->usb_iface->dev; + struct wa_xfer_packet_status_hwaiso *packet_status; + struct wa_xfer_packet_status_len_hwaiso *status_array; + struct wa_xfer *xfer; + unsigned long flags; + struct wa_seg *seg; + struct wa_rpipe *rpipe; + unsigned done = 0; + unsigned rpipe_ready = 0, seg_index; + int expected_size; + + /* We have a xfer result buffer; check it */ + dev_dbg(dev, "DTI: isoc packet status %d bytes at %p\n", + urb->actual_length, urb->transfer_buffer); + packet_status = (struct wa_xfer_packet_status_hwaiso *)(wa->dti_buf); + if (packet_status->bPacketType != WA_XFER_ISO_PACKET_STATUS) { + dev_err(dev, "DTI Error: isoc packet status--bad type 0x%02x\n", + packet_status->bPacketType); + goto error_parse_buffer; + } + xfer = wa_xfer_get_by_id(wa, wa->dti_isoc_xfer_in_progress); + if (xfer == NULL) { + dev_err(dev, "DTI Error: isoc packet status--unknown xfer 0x%08x\n", + wa->dti_isoc_xfer_in_progress); + goto error_parse_buffer; + } + spin_lock_irqsave(&xfer->lock, flags); + if (unlikely(wa->dti_isoc_xfer_seg >= xfer->segs)) + goto error_bad_seg; + seg = xfer->seg[wa->dti_isoc_xfer_seg]; + rpipe = xfer->ep->hcpriv; + expected_size = sizeof(*packet_status) + + (sizeof(packet_status->PacketStatus[0]) * + seg->isoc_frame_count); + if (urb->actual_length != expected_size) { + dev_err(dev, "DTI Error: isoc packet status--bad urb length (%d bytes vs %d needed)\n", + urb->actual_length, expected_size); + goto error_bad_seg; + } + if (le16_to_cpu(packet_status->wLength) != expected_size) { + dev_err(dev, "DTI Error: isoc packet status--bad length %u\n", + le16_to_cpu(packet_status->wLength)); + goto error_bad_seg; + } + /* isoc packet status and lengths back xfer urb. */ + status_array = packet_status->PacketStatus; + for (seg_index = 0; seg_index < seg->isoc_frame_count; ++seg_index) { + xfer->urb->iso_frame_desc[seg->index].status = + wa_xfer_status_to_errno( + le16_to_cpu(status_array[seg_index].PacketStatus)); + xfer->urb->iso_frame_desc[seg->index].actual_length = + le16_to_cpu(status_array[seg_index].PacketLength); + } + + if (!xfer->is_inbound) { + /* OUT transfer, complete it -- */ + seg->status = WA_SEG_DONE; + xfer->segs_done++; + rpipe_ready = rpipe_avail_inc(rpipe); + done = __wa_xfer_is_done(xfer); + } + spin_unlock_irqrestore(&xfer->lock, flags); + wa->dti_state = WA_DTI_TRANSFER_RESULT_PENDING; + if (done) + wa_xfer_completion(xfer); + if (rpipe_ready) + wa_xfer_delayed_run(rpipe); + wa_xfer_put(xfer); + return; + +error_bad_seg: + spin_unlock_irqrestore(&xfer->lock, flags); + wa_xfer_put(xfer); +error_parse_buffer: + return; +} + +/* * Callback for the IN data phase * * If successful transition state; otherwise, take a note of the @@ -1687,56 +2372,61 @@ static void wa_buf_in_cb(struct urb *urb) * We go back to OFF when we detect a ENOENT or ESHUTDOWN (or too many * errors) in the URBs. */ -static void wa_xfer_result_cb(struct urb *urb) +static void wa_dti_cb(struct urb *urb) { int result; struct wahc *wa = urb->context; struct device *dev = &wa->usb_iface->dev; - struct wa_xfer_result *xfer_result; u32 xfer_id; - struct wa_xfer *xfer; u8 usb_status; BUG_ON(wa->dti_urb != urb); switch (wa->dti_urb->status) { case 0: - /* We have a xfer result buffer; check it */ - dev_dbg(dev, "DTI: xfer result %d bytes at %p\n", - urb->actual_length, urb->transfer_buffer); - if (wa->dti_urb->actual_length != sizeof(*xfer_result)) { - dev_err(dev, "DTI Error: xfer result--bad size " - "xfer result (%d bytes vs %zu needed)\n", - urb->actual_length, sizeof(*xfer_result)); - break; - } - xfer_result = wa->xfer_result; - if (xfer_result->hdr.bLength != sizeof(*xfer_result)) { - dev_err(dev, "DTI Error: xfer result--" - "bad header length %u\n", - xfer_result->hdr.bLength); - break; - } - if (xfer_result->hdr.bNotifyType != WA_XFER_RESULT) { - dev_err(dev, "DTI Error: xfer result--" - "bad header type 0x%02x\n", - xfer_result->hdr.bNotifyType); - break; - } - usb_status = xfer_result->bTransferStatus & 0x3f; - if (usb_status == WA_XFER_STATUS_NOT_FOUND) - /* taken care of already */ - break; - xfer_id = xfer_result->dwTransferID; - xfer = wa_xfer_get_by_id(wa, xfer_id); - if (xfer == NULL) { - /* FIXME: transaction might have been cancelled */ - dev_err(dev, "DTI Error: xfer result--" - "unknown xfer 0x%08x (status 0x%02x)\n", - xfer_id, usb_status); - break; + if (wa->dti_state == WA_DTI_TRANSFER_RESULT_PENDING) { + struct wa_xfer_result *xfer_result; + struct wa_xfer *xfer; + + /* We have a xfer result buffer; check it */ + dev_dbg(dev, "DTI: xfer result %d bytes at %p\n", + urb->actual_length, urb->transfer_buffer); + if (urb->actual_length != sizeof(*xfer_result)) { + dev_err(dev, "DTI Error: xfer result--bad size xfer result (%d bytes vs %zu needed)\n", + urb->actual_length, + sizeof(*xfer_result)); + break; + } + xfer_result = (struct wa_xfer_result *)(wa->dti_buf); + if (xfer_result->hdr.bLength != sizeof(*xfer_result)) { + dev_err(dev, "DTI Error: xfer result--bad header length %u\n", + xfer_result->hdr.bLength); + break; + } + if (xfer_result->hdr.bNotifyType != WA_XFER_RESULT) { + dev_err(dev, "DTI Error: xfer result--bad header type 0x%02x\n", + xfer_result->hdr.bNotifyType); + break; + } + usb_status = xfer_result->bTransferStatus & 0x3f; + if (usb_status == WA_XFER_STATUS_NOT_FOUND) + /* taken care of already */ + break; + xfer_id = le32_to_cpu(xfer_result->dwTransferID); + xfer = wa_xfer_get_by_id(wa, xfer_id); + if (xfer == NULL) { + /* FIXME: transaction not found. */ + dev_err(dev, "DTI Error: xfer result--unknown xfer 0x%08x (status 0x%02x)\n", + xfer_id, usb_status); + break; + } + wa_xfer_result_chew(wa, xfer, xfer_result); + wa_xfer_put(xfer); + } else if (wa->dti_state == WA_DTI_ISOC_PACKET_STATUS_PENDING) { + wa_process_iso_packet_status(wa, urb); + } else { + dev_err(dev, "DTI Error: unexpected EP state = %d\n", + wa->dti_state); } - wa_xfer_result_chew(wa, xfer); - wa_xfer_put(xfer); break; case -ENOENT: /* (we killed the URB)...so, no broadcast */ case -ESHUTDOWN: /* going away! */ @@ -1777,7 +2467,7 @@ out: * don't really set it up and start it until the first xfer complete * notification arrives, which is what we do here. * - * Follow up in wa_xfer_result_cb(), as that's where the whole state + * Follow up in wa_dti_cb(), as that's where the whole state * machine starts. * * So here we just initialize the DTI URB for reading transfer result @@ -1813,8 +2503,8 @@ void wa_handle_notif_xfer(struct wahc *wa, struct wa_notif_hdr *notif_hdr) usb_fill_bulk_urb( wa->dti_urb, wa->usb_dev, usb_rcvbulkpipe(wa->usb_dev, 0x80 | notif_xfer->bEndpoint), - wa->xfer_result, wa->xfer_result_size, - wa_xfer_result_cb, wa); + wa->dti_buf, wa->dti_buf_size, + wa_dti_cb, wa); wa->buf_in_urb = usb_alloc_urb(0, GFP_KERNEL); if (wa->buf_in_urb == NULL) { @@ -1836,6 +2526,7 @@ out: error_dti_urb_submit: usb_put_urb(wa->buf_in_urb); + wa->buf_in_urb = NULL; error_buf_in_urb_alloc: usb_put_urb(wa->dti_urb); wa->dti_urb = NULL; diff --git a/drivers/uwb/lc-dev.c b/drivers/uwb/lc-dev.c index 9209eafc75b1..80079b8fed15 100644 --- a/drivers/uwb/lc-dev.c +++ b/drivers/uwb/lc-dev.c @@ -244,7 +244,7 @@ static ssize_t uwb_dev_RSSI_store(struct device *dev, static DEVICE_ATTR(RSSI, S_IRUGO | S_IWUSR, uwb_dev_RSSI_show, uwb_dev_RSSI_store); -static struct attribute *dev_attrs[] = { +static struct attribute *uwb_dev_attrs[] = { &dev_attr_EUI_48.attr, &dev_attr_DevAddr.attr, &dev_attr_BPST.attr, @@ -253,20 +253,10 @@ static struct attribute *dev_attrs[] = { &dev_attr_RSSI.attr, NULL, }; - -static struct attribute_group dev_attr_group = { - .attrs = dev_attrs, -}; - -static const struct attribute_group *groups[] = { - &dev_attr_group, - NULL, -}; +ATTRIBUTE_GROUPS(uwb_dev); /** * Device SYSFS registration - * - * */ static int __uwb_dev_sys_add(struct uwb_dev *uwb_dev, struct device *parent_dev) { @@ -276,7 +266,7 @@ static int __uwb_dev_sys_add(struct uwb_dev *uwb_dev, struct device *parent_dev) /* Device sysfs files are only useful for neighbor devices not local radio controllers. */ if (&uwb_dev->rc->uwb_dev != uwb_dev) - dev->groups = groups; + dev->groups = uwb_dev_groups; dev->parent = parent_dev; dev_set_drvdata(dev, uwb_dev); diff --git a/drivers/uwb/umc-bus.c b/drivers/uwb/umc-bus.c index 5c5b3fc9088a..e3ed6ff6a481 100644 --- a/drivers/uwb/umc-bus.c +++ b/drivers/uwb/umc-bus.c @@ -201,6 +201,7 @@ static ssize_t capability_id_show(struct device *dev, struct device_attribute *a return sprintf(buf, "0x%02x\n", umc->cap_id); } +static DEVICE_ATTR_RO(capability_id); static ssize_t version_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -208,12 +209,14 @@ static ssize_t version_show(struct device *dev, struct device_attribute *attr, c return sprintf(buf, "0x%04x\n", umc->version); } +static DEVICE_ATTR_RO(version); -static struct device_attribute umc_dev_attrs[] = { - __ATTR_RO(capability_id), - __ATTR_RO(version), - __ATTR_NULL, +static struct attribute *umc_dev_attrs[] = { + &dev_attr_capability_id.attr, + &dev_attr_version.attr, + NULL, }; +ATTRIBUTE_GROUPS(umc_dev); struct bus_type umc_bus_type = { .name = "umc", @@ -222,7 +225,7 @@ struct bus_type umc_bus_type = { .remove = umc_device_remove, .suspend = umc_device_suspend, .resume = umc_device_resume, - .dev_attrs = umc_dev_attrs, + .dev_groups = umc_dev_groups, }; EXPORT_SYMBOL_GPL(umc_bus_type); diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c index a9807dea3887..4fb7a8f83c8a 100644 --- a/drivers/vfio/vfio_iommu_type1.c +++ b/drivers/vfio/vfio_iommu_type1.c @@ -545,6 +545,8 @@ static int vfio_dma_do_map(struct vfio_iommu *iommu, long npage; int ret = 0, prot = 0; uint64_t mask; + struct vfio_dma *dma = NULL; + unsigned long pfn; end = map->iova + map->size; @@ -587,8 +589,6 @@ static int vfio_dma_do_map(struct vfio_iommu *iommu, } for (iova = map->iova; iova < end; iova += size, vaddr += size) { - struct vfio_dma *dma = NULL; - unsigned long pfn; long i; /* Pin a contiguous chunk of memory */ @@ -597,16 +597,15 @@ static int vfio_dma_do_map(struct vfio_iommu *iommu, if (npage <= 0) { WARN_ON(!npage); ret = (int)npage; - break; + goto out; } /* Verify pages are not already mapped */ for (i = 0; i < npage; i++) { if (iommu_iova_to_phys(iommu->domain, iova + (i << PAGE_SHIFT))) { - vfio_unpin_pages(pfn, npage, prot, true); ret = -EBUSY; - break; + goto out_unpin; } } @@ -616,8 +615,7 @@ static int vfio_dma_do_map(struct vfio_iommu *iommu, if (ret) { if (ret != -EBUSY || map_try_harder(iommu, iova, pfn, npage, prot)) { - vfio_unpin_pages(pfn, npage, prot, true); - break; + goto out_unpin; } } @@ -672,9 +670,8 @@ static int vfio_dma_do_map(struct vfio_iommu *iommu, dma = kzalloc(sizeof(*dma), GFP_KERNEL); if (!dma) { iommu_unmap(iommu->domain, iova, size); - vfio_unpin_pages(pfn, npage, prot, true); ret = -ENOMEM; - break; + goto out_unpin; } dma->size = size; @@ -685,16 +682,21 @@ static int vfio_dma_do_map(struct vfio_iommu *iommu, } } - if (ret) { - struct vfio_dma *tmp; - iova = map->iova; - size = map->size; - while ((tmp = vfio_find_dma(iommu, iova, size))) { - int r = vfio_remove_dma_overlap(iommu, iova, - &size, tmp); - if (WARN_ON(r || !size)) - break; - } + WARN_ON(ret); + mutex_unlock(&iommu->lock); + return ret; + +out_unpin: + vfio_unpin_pages(pfn, npage, prot, true); + +out: + iova = map->iova; + size = map->size; + while ((dma = vfio_find_dma(iommu, iova, size))) { + int r = vfio_remove_dma_overlap(iommu, iova, + &size, dma); + if (WARN_ON(r || !size)) + break; } mutex_unlock(&iommu->lock); diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index ce5221fa393a..e663921eebb6 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -1056,7 +1056,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq) if (data_direction != DMA_NONE) { ret = vhost_scsi_map_iov_to_sgl(cmd, &vq->iov[data_first], data_num, - data_direction == DMA_TO_DEVICE); + data_direction == DMA_FROM_DEVICE); if (unlikely(ret)) { vq_err(vq, "Failed to map iov to sgl\n"); goto err_free; diff --git a/drivers/video/au1100fb.c b/drivers/video/au1100fb.c index a54ccdc4d661..22ad85242e5b 100644 --- a/drivers/video/au1100fb.c +++ b/drivers/video/au1100fb.c @@ -361,37 +361,13 @@ void au1100fb_fb_rotate(struct fb_info *fbi, int angle) int au1100fb_fb_mmap(struct fb_info *fbi, struct vm_area_struct *vma) { struct au1100fb_device *fbdev; - unsigned int len; - unsigned long start=0, off; fbdev = to_au1100fb_device(fbi); - if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) { - return -EINVAL; - } - - start = fbdev->fb_phys & PAGE_MASK; - len = PAGE_ALIGN((start & ~PAGE_MASK) + fbdev->fb_len); - - off = vma->vm_pgoff << PAGE_SHIFT; - - if ((vma->vm_end - vma->vm_start + off) > len) { - return -EINVAL; - } - - off += start; - vma->vm_pgoff = off >> PAGE_SHIFT; - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); pgprot_val(vma->vm_page_prot) |= (6 << 9); //CCA=6 - if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, - vma->vm_end - vma->vm_start, - vma->vm_page_prot)) { - return -EAGAIN; - } - - return 0; + return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len); } static struct fb_ops au1100fb_ops = diff --git a/drivers/video/au1200fb.c b/drivers/video/au1200fb.c index 301224ecc950..1d02897d17f2 100644 --- a/drivers/video/au1200fb.c +++ b/drivers/video/au1200fb.c @@ -1233,34 +1233,13 @@ static int au1200fb_fb_blank(int blank_mode, struct fb_info *fbi) * method mainly to allow the use of the TLB streaming flag (CCA=6) */ static int au1200fb_fb_mmap(struct fb_info *info, struct vm_area_struct *vma) - { - unsigned int len; - unsigned long start=0, off; struct au1200fb_device *fbdev = info->par; - if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT)) { - return -EINVAL; - } - - start = fbdev->fb_phys & PAGE_MASK; - len = PAGE_ALIGN((start & ~PAGE_MASK) + fbdev->fb_len); - - off = vma->vm_pgoff << PAGE_SHIFT; - - if ((vma->vm_end - vma->vm_start + off) > len) { - return -EINVAL; - } - - off += start; - vma->vm_pgoff = off >> PAGE_SHIFT; - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); pgprot_val(vma->vm_page_prot) |= _CACHE_MASK; /* CCA=7 */ - return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT, - vma->vm_end - vma->vm_start, - vma->vm_page_prot); + return vm_iomap_memory(vma, fbdev->fb_phys, fbdev->fb_len); } static void set_global(u_int cmd, struct au1200_lcd_global_regs_t *pdata) diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c index 0393d827dd44..f7447f7004fb 100644 --- a/drivers/video/backlight/atmel-pwm-bl.c +++ b/drivers/video/backlight/atmel-pwm-bl.c @@ -118,7 +118,7 @@ static const struct backlight_ops atmel_pwm_bl_ops = { .update_status = atmel_pwm_bl_set_intensity, }; -static int __init atmel_pwm_bl_probe(struct platform_device *pdev) +static int atmel_pwm_bl_probe(struct platform_device *pdev) { struct backlight_properties props; const struct atmel_pwm_bl_platform_data *pdata; @@ -202,7 +202,7 @@ err_free_mem: return retval; } -static int __exit atmel_pwm_bl_remove(struct platform_device *pdev) +static int atmel_pwm_bl_remove(struct platform_device *pdev) { struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev); @@ -220,10 +220,11 @@ static struct platform_driver atmel_pwm_bl_driver = { .name = "atmel-pwm-bl", }, /* REVISIT add suspend() and resume() */ - .remove = __exit_p(atmel_pwm_bl_remove), + .probe = atmel_pwm_bl_probe, + .remove = atmel_pwm_bl_remove, }; -module_platform_driver_probe(atmel_pwm_bl_driver, atmel_pwm_bl_probe); +module_platform_driver(atmel_pwm_bl_driver); MODULE_AUTHOR("Hans-Christian egtvedt <hans-christian.egtvedt@atmel.com>"); MODULE_DESCRIPTION("Atmel PWM backlight driver"); diff --git a/drivers/video/exynos/Kconfig b/drivers/video/exynos/Kconfig index 1b035b2eb6b6..1129d0e9e640 100644 --- a/drivers/video/exynos/Kconfig +++ b/drivers/video/exynos/Kconfig @@ -16,6 +16,7 @@ if EXYNOS_VIDEO config EXYNOS_MIPI_DSI bool "EXYNOS MIPI DSI driver support." depends on ARCH_S5PV210 || ARCH_EXYNOS + select GENERIC_PHY help This enables support for MIPI-DSI device. @@ -29,7 +30,7 @@ config EXYNOS_LCD_S6E8AX0 config EXYNOS_DP bool "EXYNOS DP driver support" - depends on ARCH_EXYNOS + depends on OF && ARCH_EXYNOS default n help This enables support for DP device. diff --git a/drivers/video/exynos/exynos_dp_core.c b/drivers/video/exynos/exynos_dp_core.c index 12bbede3b091..5e1a71580051 100644 --- a/drivers/video/exynos/exynos_dp_core.c +++ b/drivers/video/exynos/exynos_dp_core.c @@ -19,8 +19,7 @@ #include <linux/interrupt.h> #include <linux/delay.h> #include <linux/of.h> - -#include <video/exynos_dp.h> +#include <linux/phy/phy.h> #include "exynos_dp_core.h" @@ -894,26 +893,17 @@ static void exynos_dp_hotplug(struct work_struct *work) dev_err(dp->dev, "unable to config video\n"); } -#ifdef CONFIG_OF -static struct exynos_dp_platdata *exynos_dp_dt_parse_pdata(struct device *dev) +static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev) { struct device_node *dp_node = dev->of_node; - struct exynos_dp_platdata *pd; struct video_info *dp_video_config; - pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL); - if (!pd) { - dev_err(dev, "memory allocation for pdata failed\n"); - return ERR_PTR(-ENOMEM); - } dp_video_config = devm_kzalloc(dev, sizeof(*dp_video_config), GFP_KERNEL); - if (!dp_video_config) { dev_err(dev, "memory allocation for video config failed\n"); return ERR_PTR(-ENOMEM); } - pd->video_info = dp_video_config; dp_video_config->h_sync_polarity = of_property_read_bool(dp_node, "hsync-active-high"); @@ -960,7 +950,7 @@ static struct exynos_dp_platdata *exynos_dp_dt_parse_pdata(struct device *dev) return ERR_PTR(-EINVAL); } - return pd; + return dp_video_config; } static int exynos_dp_dt_parse_phydata(struct exynos_dp_device *dp) @@ -971,8 +961,11 @@ static int exynos_dp_dt_parse_phydata(struct exynos_dp_device *dp) dp_phy_node = of_find_node_by_name(dp_phy_node, "dptx-phy"); if (!dp_phy_node) { - dev_err(dp->dev, "could not find dptx-phy node\n"); - return -ENODEV; + dp->phy = devm_phy_get(dp->dev, "dp"); + if (IS_ERR(dp->phy)) + return PTR_ERR(dp->phy); + else + return 0; } if (of_property_read_u32(dp_phy_node, "reg", &phy_base)) { @@ -1003,48 +996,34 @@ err: static void exynos_dp_phy_init(struct exynos_dp_device *dp) { - u32 reg; - - reg = __raw_readl(dp->phy_addr); - reg |= dp->enable_mask; - __raw_writel(reg, dp->phy_addr); -} - -static void exynos_dp_phy_exit(struct exynos_dp_device *dp) -{ - u32 reg; - - reg = __raw_readl(dp->phy_addr); - reg &= ~(dp->enable_mask); - __raw_writel(reg, dp->phy_addr); -} -#else -static struct exynos_dp_platdata *exynos_dp_dt_parse_pdata(struct device *dev) -{ - return NULL; -} - -static int exynos_dp_dt_parse_phydata(struct exynos_dp_device *dp) -{ - return -EINVAL; -} - -static void exynos_dp_phy_init(struct exynos_dp_device *dp) -{ - return; + if (dp->phy) { + phy_power_on(dp->phy); + } else if (dp->phy_addr) { + u32 reg; + + reg = __raw_readl(dp->phy_addr); + reg |= dp->enable_mask; + __raw_writel(reg, dp->phy_addr); + } } static void exynos_dp_phy_exit(struct exynos_dp_device *dp) { - return; + if (dp->phy) { + phy_power_off(dp->phy); + } else if (dp->phy_addr) { + u32 reg; + + reg = __raw_readl(dp->phy_addr); + reg &= ~(dp->enable_mask); + __raw_writel(reg, dp->phy_addr); + } } -#endif /* CONFIG_OF */ static int exynos_dp_probe(struct platform_device *pdev) { struct resource *res; struct exynos_dp_device *dp; - struct exynos_dp_platdata *pdata; int ret = 0; @@ -1057,21 +1036,13 @@ static int exynos_dp_probe(struct platform_device *pdev) dp->dev = &pdev->dev; - if (pdev->dev.of_node) { - pdata = exynos_dp_dt_parse_pdata(&pdev->dev); - if (IS_ERR(pdata)) - return PTR_ERR(pdata); + dp->video_info = exynos_dp_dt_parse_pdata(&pdev->dev); + if (IS_ERR(dp->video_info)) + return PTR_ERR(dp->video_info); - ret = exynos_dp_dt_parse_phydata(dp); - if (ret) - return ret; - } else { - pdata = pdev->dev.platform_data; - if (!pdata) { - dev_err(&pdev->dev, "no platform data\n"); - return -EINVAL; - } - } + ret = exynos_dp_dt_parse_phydata(dp); + if (ret) + return ret; dp->clock = devm_clk_get(&pdev->dev, "dp"); if (IS_ERR(dp->clock)) { @@ -1095,15 +1066,7 @@ static int exynos_dp_probe(struct platform_device *pdev) INIT_WORK(&dp->hotplug_work, exynos_dp_hotplug); - dp->video_info = pdata->video_info; - - if (pdev->dev.of_node) { - if (dp->phy_addr) - exynos_dp_phy_init(dp); - } else { - if (pdata->phy_init) - pdata->phy_init(); - } + exynos_dp_phy_init(dp); exynos_dp_init_dp(dp); @@ -1121,18 +1084,11 @@ static int exynos_dp_probe(struct platform_device *pdev) static int exynos_dp_remove(struct platform_device *pdev) { - struct exynos_dp_platdata *pdata = pdev->dev.platform_data; struct exynos_dp_device *dp = platform_get_drvdata(pdev); flush_work(&dp->hotplug_work); - if (pdev->dev.of_node) { - if (dp->phy_addr) - exynos_dp_phy_exit(dp); - } else { - if (pdata->phy_exit) - pdata->phy_exit(); - } + exynos_dp_phy_exit(dp); clk_disable_unprepare(dp->clock); @@ -1143,20 +1099,13 @@ static int exynos_dp_remove(struct platform_device *pdev) #ifdef CONFIG_PM_SLEEP static int exynos_dp_suspend(struct device *dev) { - struct exynos_dp_platdata *pdata = dev->platform_data; struct exynos_dp_device *dp = dev_get_drvdata(dev); disable_irq(dp->irq); flush_work(&dp->hotplug_work); - if (dev->of_node) { - if (dp->phy_addr) - exynos_dp_phy_exit(dp); - } else { - if (pdata->phy_exit) - pdata->phy_exit(); - } + exynos_dp_phy_exit(dp); clk_disable_unprepare(dp->clock); @@ -1165,16 +1114,9 @@ static int exynos_dp_suspend(struct device *dev) static int exynos_dp_resume(struct device *dev) { - struct exynos_dp_platdata *pdata = dev->platform_data; struct exynos_dp_device *dp = dev_get_drvdata(dev); - if (dev->of_node) { - if (dp->phy_addr) - exynos_dp_phy_init(dp); - } else { - if (pdata->phy_init) - pdata->phy_init(); - } + exynos_dp_phy_init(dp); clk_prepare_enable(dp->clock); @@ -1203,7 +1145,7 @@ static struct platform_driver exynos_dp_driver = { .name = "exynos-dp", .owner = THIS_MODULE, .pm = &exynos_dp_pm_ops, - .of_match_table = of_match_ptr(exynos_dp_match), + .of_match_table = exynos_dp_match, }, }; diff --git a/drivers/video/exynos/exynos_dp_core.h b/drivers/video/exynos/exynos_dp_core.h index 6c567bbf2fb8..607e36d0c147 100644 --- a/drivers/video/exynos/exynos_dp_core.h +++ b/drivers/video/exynos/exynos_dp_core.h @@ -13,6 +13,99 @@ #ifndef _EXYNOS_DP_CORE_H #define _EXYNOS_DP_CORE_H +#define DP_TIMEOUT_LOOP_COUNT 100 +#define MAX_CR_LOOP 5 +#define MAX_EQ_LOOP 5 + +enum link_rate_type { + LINK_RATE_1_62GBPS = 0x06, + LINK_RATE_2_70GBPS = 0x0a +}; + +enum link_lane_count_type { + LANE_COUNT1 = 1, + LANE_COUNT2 = 2, + LANE_COUNT4 = 4 +}; + +enum link_training_state { + START, + CLOCK_RECOVERY, + EQUALIZER_TRAINING, + FINISHED, + FAILED +}; + +enum voltage_swing_level { + VOLTAGE_LEVEL_0, + VOLTAGE_LEVEL_1, + VOLTAGE_LEVEL_2, + VOLTAGE_LEVEL_3, +}; + +enum pre_emphasis_level { + PRE_EMPHASIS_LEVEL_0, + PRE_EMPHASIS_LEVEL_1, + PRE_EMPHASIS_LEVEL_2, + PRE_EMPHASIS_LEVEL_3, +}; + +enum pattern_set { + PRBS7, + D10_2, + TRAINING_PTN1, + TRAINING_PTN2, + DP_NONE +}; + +enum color_space { + COLOR_RGB, + COLOR_YCBCR422, + COLOR_YCBCR444 +}; + +enum color_depth { + COLOR_6, + COLOR_8, + COLOR_10, + COLOR_12 +}; + +enum color_coefficient { + COLOR_YCBCR601, + COLOR_YCBCR709 +}; + +enum dynamic_range { + VESA, + CEA +}; + +enum pll_status { + PLL_UNLOCKED, + PLL_LOCKED +}; + +enum clock_recovery_m_value_type { + CALCULATED_M, + REGISTER_M +}; + +enum video_timing_recognition_type { + VIDEO_TIMING_FROM_CAPTURE, + VIDEO_TIMING_FROM_REGISTER +}; + +enum analog_power_block { + AUX_BLOCK, + CH0_BLOCK, + CH1_BLOCK, + CH2_BLOCK, + CH3_BLOCK, + ANALOG_TOTAL, + POWER_ALL +}; + enum dp_irq_type { DP_IRQ_TYPE_HP_CABLE_IN, DP_IRQ_TYPE_HP_CABLE_OUT, @@ -20,6 +113,22 @@ enum dp_irq_type { DP_IRQ_TYPE_UNKNOWN, }; +struct video_info { + char *name; + + bool h_sync_polarity; + bool v_sync_polarity; + bool interlaced; + + enum color_space color_space; + enum dynamic_range dynamic_range; + enum color_coefficient ycbcr_coeff; + enum color_depth color_depth; + + enum link_rate_type link_rate; + enum link_lane_count_type lane_count; +}; + struct link_train { int eq_loop; int cr_loop[4]; @@ -42,6 +151,7 @@ struct exynos_dp_device { struct video_info *video_info; struct link_train link_train; struct work_struct hotplug_work; + struct phy *phy; }; /* exynos_dp_reg.c */ diff --git a/drivers/video/exynos/exynos_dp_reg.c b/drivers/video/exynos/exynos_dp_reg.c index 29d9d035c73a..b70da5052ff0 100644 --- a/drivers/video/exynos/exynos_dp_reg.c +++ b/drivers/video/exynos/exynos_dp_reg.c @@ -14,8 +14,6 @@ #include <linux/io.h> #include <linux/delay.h> -#include <video/exynos_dp.h> - #include "exynos_dp_core.h" #include "exynos_dp_reg.h" diff --git a/drivers/video/exynos/exynos_mipi_dsi.c b/drivers/video/exynos/exynos_mipi_dsi.c index 32e540600f99..00b3a52c1d68 100644 --- a/drivers/video/exynos/exynos_mipi_dsi.c +++ b/drivers/video/exynos/exynos_mipi_dsi.c @@ -30,6 +30,7 @@ #include <linux/interrupt.h> #include <linux/kthread.h> #include <linux/notifier.h> +#include <linux/phy/phy.h> #include <linux/regulator/consumer.h> #include <linux/pm_runtime.h> #include <linux/err.h> @@ -156,8 +157,7 @@ static int exynos_mipi_dsi_blank_mode(struct mipi_dsim_device *dsim, int power) exynos_mipi_regulator_enable(dsim); /* enable MIPI-DSI PHY. */ - if (dsim->pd->phy_enable) - dsim->pd->phy_enable(pdev, true); + phy_power_on(dsim->phy); clk_enable(dsim->clock); @@ -373,6 +373,10 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev) return ret; } + dsim->phy = devm_phy_get(&pdev->dev, "dsim"); + if (IS_ERR(dsim->phy)) + return PTR_ERR(dsim->phy); + dsim->clock = devm_clk_get(&pdev->dev, "dsim0"); if (IS_ERR(dsim->clock)) { dev_err(&pdev->dev, "failed to get dsim clock source\n"); @@ -439,8 +443,7 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev) exynos_mipi_regulator_enable(dsim); /* enable MIPI-DSI PHY. */ - if (dsim->pd->phy_enable) - dsim->pd->phy_enable(pdev, true); + phy_power_on(dsim->phy); exynos_mipi_update_cfg(dsim); @@ -504,9 +507,8 @@ static int exynos_mipi_dsi_suspend(struct device *dev) if (client_drv && client_drv->suspend) client_drv->suspend(client_dev); - /* enable MIPI-DSI PHY. */ - if (dsim->pd->phy_enable) - dsim->pd->phy_enable(pdev, false); + /* disable MIPI-DSI PHY. */ + phy_power_off(dsim->phy); clk_disable(dsim->clock); @@ -536,8 +538,7 @@ static int exynos_mipi_dsi_resume(struct device *dev) exynos_mipi_regulator_enable(dsim); /* enable MIPI-DSI PHY. */ - if (dsim->pd->phy_enable) - dsim->pd->phy_enable(pdev, true); + phy_power_on(dsim->phy); clk_enable(dsim->clock); diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c index ee59b74768d9..fed0ce198ae3 100644 --- a/drivers/virtio/virtio.c +++ b/drivers/virtio/virtio.c @@ -13,18 +13,24 @@ static ssize_t device_show(struct device *_d, struct virtio_device *dev = dev_to_virtio(_d); return sprintf(buf, "0x%04x\n", dev->id.device); } +static DEVICE_ATTR_RO(device); + static ssize_t vendor_show(struct device *_d, struct device_attribute *attr, char *buf) { struct virtio_device *dev = dev_to_virtio(_d); return sprintf(buf, "0x%04x\n", dev->id.vendor); } +static DEVICE_ATTR_RO(vendor); + static ssize_t status_show(struct device *_d, struct device_attribute *attr, char *buf) { struct virtio_device *dev = dev_to_virtio(_d); return sprintf(buf, "0x%08x\n", dev->config->get_status(dev)); } +static DEVICE_ATTR_RO(status); + static ssize_t modalias_show(struct device *_d, struct device_attribute *attr, char *buf) { @@ -32,6 +38,8 @@ static ssize_t modalias_show(struct device *_d, return sprintf(buf, "virtio:d%08Xv%08X\n", dev->id.device, dev->id.vendor); } +static DEVICE_ATTR_RO(modalias); + static ssize_t features_show(struct device *_d, struct device_attribute *attr, char *buf) { @@ -47,14 +55,17 @@ static ssize_t features_show(struct device *_d, len += sprintf(buf+len, "\n"); return len; } -static struct device_attribute virtio_dev_attrs[] = { - __ATTR_RO(device), - __ATTR_RO(vendor), - __ATTR_RO(status), - __ATTR_RO(modalias), - __ATTR_RO(features), - __ATTR_NULL +static DEVICE_ATTR_RO(features); + +static struct attribute *virtio_dev_attrs[] = { + &dev_attr_device.attr, + &dev_attr_vendor.attr, + &dev_attr_status.attr, + &dev_attr_modalias.attr, + &dev_attr_features.attr, + NULL, }; +ATTRIBUTE_GROUPS(virtio_dev); static inline int virtio_id_match(const struct virtio_device *dev, const struct virtio_device_id *id) @@ -165,7 +176,7 @@ static int virtio_dev_remove(struct device *_d) static struct bus_type virtio_bus = { .name = "virtio", .match = virtio_dev_match, - .dev_attrs = virtio_dev_attrs, + .dev_groups = virtio_dev_groups, .uevent = virtio_uevent, .probe = virtio_dev_probe, .remove = virtio_dev_remove, diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c index 96cab6ac2b4e..41613f92a723 100644 --- a/drivers/w1/masters/ds1wm.c +++ b/drivers/w1/masters/ds1wm.c @@ -498,7 +498,7 @@ static int ds1wm_probe(struct platform_device *pdev) irq_set_irq_type(ds1wm_data->irq, IRQ_TYPE_EDGE_FALLING); ret = devm_request_irq(&pdev->dev, ds1wm_data->irq, ds1wm_isr, - IRQF_DISABLED | IRQF_SHARED, "ds1wm", ds1wm_data); + IRQF_SHARED, "ds1wm", ds1wm_data); if (ret) return ret; diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c index 6e94d8dd3d00..9900e8ec7393 100644 --- a/drivers/w1/masters/omap_hdq.c +++ b/drivers/w1/masters/omap_hdq.c @@ -577,8 +577,7 @@ static int omap_hdq_probe(struct platform_device *pdev) goto err_irq; } - ret = devm_request_irq(dev, irq, hdq_isr, IRQF_DISABLED, - "omap_hdq", hdq_data); + ret = devm_request_irq(dev, irq, hdq_isr, 0, "omap_hdq", hdq_data); if (ret < 0) { dev_dbg(&pdev->dev, "could not request irq\n"); goto err_irq; diff --git a/drivers/w1/masters/w1-gpio.c b/drivers/w1/masters/w1-gpio.c index f54ece268c98..264ad1c583ab 100644 --- a/drivers/w1/masters/w1-gpio.c +++ b/drivers/w1/masters/w1-gpio.c @@ -58,6 +58,7 @@ static int w1_gpio_probe_dt(struct platform_device *pdev) { struct w1_gpio_platform_data *pdata = pdev->dev.platform_data; struct device_node *np = pdev->dev.of_node; + int gpio; pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) @@ -66,7 +67,11 @@ static int w1_gpio_probe_dt(struct platform_device *pdev) if (of_get_property(np, "linux,open-drain", NULL)) pdata->is_open_drain = 1; - pdata->pin = of_get_gpio(np, 0); + gpio = of_get_gpio(np, 0); + if (gpio < 0) + return gpio; + pdata->pin = gpio; + pdata->ext_pullup_enable_pin = of_get_gpio(np, 1); pdev->dev.platform_data = pdata; @@ -94,25 +99,27 @@ static int w1_gpio_probe(struct platform_device *pdev) return -ENXIO; } - master = kzalloc(sizeof(struct w1_bus_master), GFP_KERNEL); + master = devm_kzalloc(&pdev->dev, sizeof(struct w1_bus_master), + GFP_KERNEL); if (!master) { dev_err(&pdev->dev, "Out of memory\n"); return -ENOMEM; } - err = gpio_request(pdata->pin, "w1"); + err = devm_gpio_request(&pdev->dev, pdata->pin, "w1"); if (err) { dev_err(&pdev->dev, "gpio_request (pin) failed\n"); - goto free_master; + return err; } if (gpio_is_valid(pdata->ext_pullup_enable_pin)) { - err = gpio_request_one(pdata->ext_pullup_enable_pin, - GPIOF_INIT_LOW, "w1 pullup"); + err = devm_gpio_request_one(&pdev->dev, + pdata->ext_pullup_enable_pin, GPIOF_INIT_LOW, + "w1 pullup"); if (err < 0) { dev_err(&pdev->dev, "gpio_request_one " "(ext_pullup_enable_pin) failed\n"); - goto free_gpio; + return err; } } @@ -130,7 +137,7 @@ static int w1_gpio_probe(struct platform_device *pdev) err = w1_add_master_device(master); if (err) { dev_err(&pdev->dev, "w1_add_master device failed\n"); - goto free_gpio_ext_pu; + return err; } if (pdata->enable_external_pullup) @@ -142,16 +149,6 @@ static int w1_gpio_probe(struct platform_device *pdev) platform_set_drvdata(pdev, master); return 0; - - free_gpio_ext_pu: - if (gpio_is_valid(pdata->ext_pullup_enable_pin)) - gpio_free(pdata->ext_pullup_enable_pin); - free_gpio: - gpio_free(pdata->pin); - free_master: - kfree(master); - - return err; } static int w1_gpio_remove(struct platform_device *pdev) @@ -166,8 +163,6 @@ static int w1_gpio_remove(struct platform_device *pdev) gpio_set_value(pdata->ext_pullup_enable_pin, 0); w1_remove_master_device(master); - gpio_free(pdata->pin); - kfree(master); return 0; } diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c index c7c64f18773d..fa932c2f7d97 100644 --- a/drivers/w1/w1.c +++ b/drivers/w1/w1.c @@ -613,6 +613,9 @@ static int w1_bus_notify(struct notifier_block *nb, unsigned long action, sl = dev_to_w1_slave(dev); fops = sl->family->fops; + if (!fops) + return 0; + switch (action) { case BUS_NOTIFY_ADD_DEVICE: /* if the family driver needs to initialize something... */ @@ -713,7 +716,10 @@ static int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn) atomic_set(&sl->refcnt, 0); init_completion(&sl->released); + /* slave modules need to be loaded in a context with unlocked mutex */ + mutex_unlock(&dev->mutex); request_module("w1-family-0x%0x", rn->family); + mutex_lock(&dev->mutex); spin_lock(&w1_flock); f = w1_family_registered(rn->family); diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index 5be5e3d14f79..19f3c3fc65f4 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -802,6 +802,12 @@ static int hpwdt_init_one(struct pci_dev *dev, return -ENODEV; } + /* + * Ignore all auxilary iLO devices with the following PCI ID + */ + if (dev->subsystem_device == 0x1979) + return -ENODEV; + if (pci_enable_device(dev)) { dev_warn(&dev->dev, "Not possible to enable PCI Device: 0x%x:0x%x.\n", diff --git a/drivers/watchdog/kempld_wdt.c b/drivers/watchdog/kempld_wdt.c index 491419e0772a..5c3d4df63e68 100644 --- a/drivers/watchdog/kempld_wdt.c +++ b/drivers/watchdog/kempld_wdt.c @@ -35,7 +35,7 @@ #define KEMPLD_WDT_STAGE_TIMEOUT(x) (0x1b + (x) * 4) #define KEMPLD_WDT_STAGE_CFG(x) (0x18 + (x)) #define STAGE_CFG_GET_PRESCALER(x) (((x) & 0x30) >> 4) -#define STAGE_CFG_SET_PRESCALER(x) (((x) & 0x30) << 4) +#define STAGE_CFG_SET_PRESCALER(x) (((x) & 0x3) << 4) #define STAGE_CFG_PRESCALER_MASK 0x30 #define STAGE_CFG_ACTION_MASK 0x7 #define STAGE_CFG_ASSERT (1 << 3) diff --git a/drivers/watchdog/sunxi_wdt.c b/drivers/watchdog/sunxi_wdt.c index 1f94b42764aa..f6caa77151c7 100644 --- a/drivers/watchdog/sunxi_wdt.c +++ b/drivers/watchdog/sunxi_wdt.c @@ -146,7 +146,7 @@ static const struct watchdog_ops sunxi_wdt_ops = { .set_timeout = sunxi_wdt_set_timeout, }; -static int __init sunxi_wdt_probe(struct platform_device *pdev) +static int sunxi_wdt_probe(struct platform_device *pdev) { struct sunxi_wdt_dev *sunxi_wdt; struct resource *res; @@ -187,7 +187,7 @@ static int __init sunxi_wdt_probe(struct platform_device *pdev) return 0; } -static int __exit sunxi_wdt_remove(struct platform_device *pdev) +static int sunxi_wdt_remove(struct platform_device *pdev) { struct sunxi_wdt_dev *sunxi_wdt = platform_get_drvdata(pdev); diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c index 42913f131dc2..c9b0c627fe7e 100644 --- a/drivers/watchdog/ts72xx_wdt.c +++ b/drivers/watchdog/ts72xx_wdt.c @@ -310,7 +310,8 @@ static long ts72xx_wdt_ioctl(struct file *file, unsigned int cmd, case WDIOC_GETSTATUS: case WDIOC_GETBOOTSTATUS: - return put_user(0, p); + error = put_user(0, p); + break; case WDIOC_KEEPALIVE: ts72xx_wdt_kick(wdt); diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 38e92b770e91..3c0a74b3e9b1 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -384,12 +384,14 @@ static ssize_t nodename_show(struct device *dev, { return sprintf(buf, "%s\n", to_xenbus_device(dev)->nodename); } +static DEVICE_ATTR_RO(nodename); static ssize_t devtype_show(struct device *dev, struct device_attribute *attr, char *buf) { return sprintf(buf, "%s\n", to_xenbus_device(dev)->devicetype); } +static DEVICE_ATTR_RO(devtype); static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -397,14 +399,24 @@ static ssize_t modalias_show(struct device *dev, return sprintf(buf, "%s:%s\n", dev->bus->name, to_xenbus_device(dev)->devicetype); } +static DEVICE_ATTR_RO(modalias); -struct device_attribute xenbus_dev_attrs[] = { - __ATTR_RO(nodename), - __ATTR_RO(devtype), - __ATTR_RO(modalias), - __ATTR_NULL +static struct attribute *xenbus_dev_attrs[] = { + &dev_attr_nodename.attr, + &dev_attr_devtype.attr, + &dev_attr_modalias.attr, + NULL, }; -EXPORT_SYMBOL_GPL(xenbus_dev_attrs); + +static const struct attribute_group xenbus_dev_group = { + .attrs = xenbus_dev_attrs, +}; + +const struct attribute_group *xenbus_dev_groups[] = { + &xenbus_dev_group, + NULL, +}; +EXPORT_SYMBOL_GPL(xenbus_dev_groups); int xenbus_probe_node(struct xen_bus_type *bus, const char *type, diff --git a/drivers/xen/xenbus/xenbus_probe.h b/drivers/xen/xenbus/xenbus_probe.h index 146f857a36f8..1085ec294a19 100644 --- a/drivers/xen/xenbus/xenbus_probe.h +++ b/drivers/xen/xenbus/xenbus_probe.h @@ -54,7 +54,7 @@ enum xenstore_init { XS_LOCAL, }; -extern struct device_attribute xenbus_dev_attrs[]; +extern const struct attribute_group *xenbus_dev_groups[]; extern int xenbus_match(struct device *_dev, struct device_driver *_drv); extern int xenbus_dev_probe(struct device *_dev); diff --git a/drivers/xen/xenbus/xenbus_probe_backend.c b/drivers/xen/xenbus/xenbus_probe_backend.c index 998bbbab816b..5125dce11a60 100644 --- a/drivers/xen/xenbus/xenbus_probe_backend.c +++ b/drivers/xen/xenbus/xenbus_probe_backend.c @@ -200,7 +200,7 @@ static struct xen_bus_type xenbus_backend = { .probe = xenbus_dev_probe, .remove = xenbus_dev_remove, .shutdown = xenbus_dev_shutdown, - .dev_attrs = xenbus_dev_attrs, + .dev_groups = xenbus_dev_groups, }, }; diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c index 34b20bfa4e8c..129bf84c19ec 100644 --- a/drivers/xen/xenbus/xenbus_probe_frontend.c +++ b/drivers/xen/xenbus/xenbus_probe_frontend.c @@ -154,7 +154,7 @@ static struct xen_bus_type xenbus_frontend = { .probe = xenbus_frontend_dev_probe, .remove = xenbus_dev_remove, .shutdown = xenbus_dev_shutdown, - .dev_attrs = xenbus_dev_attrs, + .dev_groups = xenbus_dev_groups, .pm = &xenbus_pm_ops, }, |