aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2010-01-08 13:55:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-01-08 13:55:39 -0800
commit00cd25b29ba946b7d0907157577ab5cf421bd50e (patch)
tree57d76cf7a495ea8f1ac662e12442bf6164ea3024
parente2b6d02cca533715d6be40fdfc32d3cc47333358 (diff)
parentb49bfd32901625e4adcfee011d2b32a43b4db67d (diff)
downloadlinux-linaro-android-00cd25b29ba946b7d0907157577ab5cf421bd50e.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCIe AER: prevent AER injection if hardware masks error reporting PCI/PM: Use per-device D3 delays PCI: Check the node argument passed to cpumask_of_node PCI: AER: fix aer inject result in kernel oops PCI: pcie portdrv: style cleanup
-rw-r--r--drivers/net/sky2.c1
-rw-r--r--drivers/pci/pci-sysfs.c6
-rw-r--r--drivers/pci/pci.c19
-rw-r--r--drivers/pci/pcie/aer/aer_inject.c28
-rw-r--r--drivers/pci/pcie/portdrv_core.c16
-rw-r--r--drivers/pci/pcie/portdrv_pci.c17
-rw-r--r--include/linux/pci.h1
7 files changed, 62 insertions, 26 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 1c01b96c961..2d28d58200d 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -4684,6 +4684,7 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
INIT_WORK(&hw->restart_work, sky2_restart);
pci_set_drvdata(pdev, hw);
+ pdev->d3_delay = 150;
return 0;
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index c5df94e8667..807224ec835 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -75,7 +75,8 @@ static ssize_t local_cpus_show(struct device *dev,
int len;
#ifdef CONFIG_NUMA
- mask = cpumask_of_node(dev_to_node(dev));
+ mask = (dev_to_node(dev) == -1) ? cpu_online_mask :
+ cpumask_of_node(dev_to_node(dev));
#else
mask = cpumask_of_pcibus(to_pci_dev(dev)->bus);
#endif
@@ -93,7 +94,8 @@ static ssize_t local_cpulist_show(struct device *dev,
int len;
#ifdef CONFIG_NUMA
- mask = cpumask_of_node(dev_to_node(dev));
+ mask = (dev_to_node(dev) == -1) ? cpu_online_mask :
+ cpumask_of_node(dev_to_node(dev));
#else
mask = cpumask_of_pcibus(to_pci_dev(dev)->bus);
#endif
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 0906599ebfd..315fea47e78 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -29,7 +29,17 @@ const char *pci_power_names[] = {
};
EXPORT_SYMBOL_GPL(pci_power_names);
-unsigned int pci_pm_d3_delay = PCI_PM_D3_WAIT;
+unsigned int pci_pm_d3_delay;
+
+static void pci_dev_d3_sleep(struct pci_dev *dev)
+{
+ unsigned int delay = dev->d3_delay;
+
+ if (delay < pci_pm_d3_delay)
+ delay = pci_pm_d3_delay;
+
+ msleep(delay);
+}
#ifdef CONFIG_PCI_DOMAINS
int pci_domains_supported = 1;
@@ -522,7 +532,7 @@ static int pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state)
/* Mandatory power management transition delays */
/* see PCI PM 1.1 5.6.1 table 18 */
if (state == PCI_D3hot || dev->current_state == PCI_D3hot)
- msleep(pci_pm_d3_delay);
+ pci_dev_d3_sleep(dev);
else if (state == PCI_D2 || dev->current_state == PCI_D2)
udelay(PCI_PM_D2_DELAY);
@@ -1409,6 +1419,7 @@ void pci_pm_init(struct pci_dev *dev)
}
dev->pm_cap = pm;
+ dev->d3_delay = PCI_PM_D3_WAIT;
dev->d1_support = false;
dev->d2_support = false;
@@ -2247,12 +2258,12 @@ static int pci_pm_reset(struct pci_dev *dev, int probe)
csr &= ~PCI_PM_CTRL_STATE_MASK;
csr |= PCI_D3hot;
pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, csr);
- msleep(pci_pm_d3_delay);
+ pci_dev_d3_sleep(dev);
csr &= ~PCI_PM_CTRL_STATE_MASK;
csr |= PCI_D0;
pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, csr);
- msleep(pci_pm_d3_delay);
+ pci_dev_d3_sleep(dev);
return 0;
}
diff --git a/drivers/pci/pcie/aer/aer_inject.c b/drivers/pci/pcie/aer/aer_inject.c
index 797d47809f7..8c30a9544d6 100644
--- a/drivers/pci/pcie/aer/aer_inject.c
+++ b/drivers/pci/pcie/aer/aer_inject.c
@@ -321,7 +321,7 @@ static int aer_inject(struct aer_error_inj *einj)
unsigned long flags;
unsigned int devfn = PCI_DEVFN(einj->dev, einj->fn);
int pos_cap_err, rp_pos_cap_err;
- u32 sever;
+ u32 sever, mask;
int ret = 0;
dev = pci_get_domain_bus_and_slot((int)einj->domain, einj->bus, devfn);
@@ -374,6 +374,24 @@ static int aer_inject(struct aer_error_inj *einj)
err->header_log2 = einj->header_log2;
err->header_log3 = einj->header_log3;
+ pci_read_config_dword(dev, pos_cap_err + PCI_ERR_COR_MASK, &mask);
+ if (einj->cor_status && !(einj->cor_status & ~mask)) {
+ ret = -EINVAL;
+ printk(KERN_WARNING "The correctable error(s) is masked "
+ "by device\n");
+ spin_unlock_irqrestore(&inject_lock, flags);
+ goto out_put;
+ }
+
+ pci_read_config_dword(dev, pos_cap_err + PCI_ERR_UNCOR_MASK, &mask);
+ if (einj->uncor_status && !(einj->uncor_status & ~mask)) {
+ ret = -EINVAL;
+ printk(KERN_WARNING "The uncorrectable error(s) is masked "
+ "by device\n");
+ spin_unlock_irqrestore(&inject_lock, flags);
+ goto out_put;
+ }
+
rperr = __find_aer_error_by_dev(rpdev);
if (!rperr) {
rperr = rperr_alloc;
@@ -413,8 +431,14 @@ static int aer_inject(struct aer_error_inj *einj)
if (ret)
goto out_put;
- if (find_aer_device(rpdev, &edev))
+ if (find_aer_device(rpdev, &edev)) {
+ if (!get_service_data(edev)) {
+ printk(KERN_WARNING "AER service is not initialized\n");
+ ret = -EINVAL;
+ goto out_put;
+ }
aer_irq(-1, edev);
+ }
else
ret = -EINVAL;
out_put:
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 413262eb95b..b174188ac12 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -27,7 +27,7 @@
*/
static void release_pcie_device(struct device *dev)
{
- kfree(to_pcie_device(dev));
+ kfree(to_pcie_device(dev));
}
/**
@@ -346,12 +346,11 @@ static int suspend_iter(struct device *dev, void *data)
{
struct pcie_port_service_driver *service_driver;
- if ((dev->bus == &pcie_port_bus_type) &&
- (dev->driver)) {
- service_driver = to_service_driver(dev->driver);
- if (service_driver->suspend)
- service_driver->suspend(to_pcie_device(dev));
- }
+ if ((dev->bus == &pcie_port_bus_type) && dev->driver) {
+ service_driver = to_service_driver(dev->driver);
+ if (service_driver->suspend)
+ service_driver->suspend(to_pcie_device(dev));
+ }
return 0;
}
@@ -494,6 +493,7 @@ int pcie_port_service_register(struct pcie_port_service_driver *new)
return driver_register(&new->driver);
}
+EXPORT_SYMBOL(pcie_port_service_register);
/**
* pcie_port_service_unregister - unregister PCI Express port service driver
@@ -503,6 +503,4 @@ void pcie_port_service_unregister(struct pcie_port_service_driver *drv)
{
driver_unregister(&drv->driver);
}
-
-EXPORT_SYMBOL(pcie_port_service_register);
EXPORT_SYMBOL(pcie_port_service_unregister);
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 34d65172a4d..13c8972886e 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -63,7 +63,7 @@ static const struct dev_pm_ops pcie_portdrv_pm_ops = {
* pcie_portdrv_probe - Probe PCI-Express port devices
* @dev: PCI-Express port device being probed
*
- * If detected invokes the pcie_port_device_register() method for
+ * If detected invokes the pcie_port_device_register() method for
* this port device.
*
*/
@@ -78,7 +78,7 @@ static int __devinit pcie_portdrv_probe(struct pci_dev *dev,
(dev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)))
return -ENODEV;
- if (!dev->irq && dev->pin) {
+ if (!dev->irq && dev->pin) {
dev_warn(&dev->dev, "device [%04x:%04x] has invalid IRQ; "
"check vendor BIOS\n", dev->vendor, dev->device);
}
@@ -91,7 +91,7 @@ static int __devinit pcie_portdrv_probe(struct pci_dev *dev,
return 0;
}
-static void pcie_portdrv_remove (struct pci_dev *dev)
+static void pcie_portdrv_remove(struct pci_dev *dev)
{
pcie_port_device_remove(dev);
pci_disable_device(dev);
@@ -129,14 +129,13 @@ static int error_detected_iter(struct device *device, void *data)
static pci_ers_result_t pcie_portdrv_error_detected(struct pci_dev *dev,
enum pci_channel_state error)
{
- struct aer_broadcast_data result_data =
- {error, PCI_ERS_RESULT_CAN_RECOVER};
- int retval;
+ struct aer_broadcast_data data = {error, PCI_ERS_RESULT_CAN_RECOVER};
+ int ret;
/* can not fail */
- retval = device_for_each_child(&dev->dev, &result_data, error_detected_iter);
+ ret = device_for_each_child(&dev->dev, &data, error_detected_iter);
- return result_data.result;
+ return data.result;
}
static int mmio_enabled_iter(struct device *device, void *data)
@@ -290,7 +289,7 @@ static int __init pcie_portdrv_init(void)
return retval;
}
-static void __exit pcie_portdrv_exit(void)
+static void __exit pcie_portdrv_exit(void)
{
pci_unregister_driver(&pcie_portdriver);
pcie_port_bus_unregister();
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 5da0690d9ce..174e5392e51 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -243,6 +243,7 @@ struct pci_dev {
unsigned int d2_support:1; /* Low power state D2 is supported */
unsigned int no_d1d2:1; /* Only allow D0 and D3 */
unsigned int wakeup_prepared:1;
+ unsigned int d3_delay; /* D3->D0 transition time in ms */
#ifdef CONFIG_PCIEASPM
struct pcie_link_state *link_state; /* ASPM link state. */