From d18d7682c18b617f523df6beea5ea0bd396ed0bd Mon Sep 17 00:00:00 2001 From: Fabio Massimo Di Nitto Date: Sat, 10 Feb 2007 23:50:00 -0800 Subject: [PARTITION]: Add whole_disk attribute. Some partitioning systems create special partitions that span the entire disk. One example are Sun partitions, and this whole-disk partition exists to tell the firmware the extent of the entire device so it can load the boot block and do other things. Such partitions should not be treated as normal partitions, because all the other partitions overlap this whole-disk one. So we'd see multiple instances of the same UUID etc. which we do not want. udev and friends can thus search for this 'whole_disk' attribute and use it to decide to ignore the partition. Signed-off-by: Fabio Massimo Di Nitto Signed-off-by: David S. Miller --- block/ioctl.c | 2 +- fs/partitions/check.c | 15 ++++++++++++--- fs/partitions/msdos.c | 2 +- fs/partitions/sgi.c | 2 +- fs/partitions/sun.c | 5 ++++- include/linux/genhd.h | 8 +++++++- 6 files changed, 26 insertions(+), 8 deletions(-) diff --git a/block/ioctl.c b/block/ioctl.c index f6962b64660..e3f5eb9882c 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -61,7 +61,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user } } /* all seems OK */ - add_partition(disk, part, start, length); + add_partition(disk, part, start, length, ADDPART_FLAG_NONE); mutex_unlock(&bdev->bd_mutex); return 0; case BLKPG_DEL_PARTITION: diff --git a/fs/partitions/check.c b/fs/partitions/check.c index 3d73d94d93a..ac32a2e8540 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -365,7 +365,7 @@ void delete_partition(struct gendisk *disk, int part) kobject_put(&p->kobj); } -void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len) +void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len, int flags) { struct hd_struct *p; @@ -390,6 +390,15 @@ void add_partition(struct gendisk *disk, int part, sector_t start, sector_t len) if (!disk->part_uevent_suppress) kobject_uevent(&p->kobj, KOBJ_ADD); sysfs_create_link(&p->kobj, &block_subsys.kset.kobj, "subsystem"); + if (flags & ADDPART_FLAG_WHOLEDISK) { + static struct attribute addpartattr = { + .name = "whole_disk", + .mode = S_IRUSR | S_IRGRP | S_IROTH, + .owner = THIS_MODULE, + }; + + sysfs_create_file(&p->kobj, &addpartattr); + } partition_sysfs_add_subdir(p); disk->part[part-1] = p; } @@ -543,9 +552,9 @@ int rescan_partitions(struct gendisk *disk, struct block_device *bdev) printk(" %s: p%d exceeds device capacity\n", disk->disk_name, p); } - add_partition(disk, p, from, size); + add_partition(disk, p, from, size, state->parts[p].flags); #ifdef CONFIG_BLK_DEV_MD - if (state->parts[p].flags) + if (state->parts[p].flags & ADDPART_FLAG_RAID) md_autodetect_dev(bdev->bd_dev+p); #endif } diff --git a/fs/partitions/msdos.c b/fs/partitions/msdos.c index 8c7af177781..d964d1f90de 100644 --- a/fs/partitions/msdos.c +++ b/fs/partitions/msdos.c @@ -155,7 +155,7 @@ parse_extended(struct parsed_partitions *state, struct block_device *bdev, put_partition(state, state->next, next, size); if (SYS_IND(p) == LINUX_RAID_PARTITION) - state->parts[state->next].flags = 1; + state->parts[state->next].flags = ADDPART_FLAG_RAID; loopct = 0; if (++state->next == state->limit) goto done; diff --git a/fs/partitions/sgi.c b/fs/partitions/sgi.c index 6fa4ff89510..ed5ac83fe83 100644 --- a/fs/partitions/sgi.c +++ b/fs/partitions/sgi.c @@ -72,7 +72,7 @@ int sgi_partition(struct parsed_partitions *state, struct block_device *bdev) if (blocks) { put_partition(state, slot, start, blocks); if (be32_to_cpu(p->type) == LINUX_RAID_PARTITION) - state->parts[slot].flags = 1; + state->parts[slot].flags = ADDPART_FLAG_RAID; } slot++; } diff --git a/fs/partitions/sun.c b/fs/partitions/sun.c index 0a5927c806c..123f8b46c8b 100644 --- a/fs/partitions/sun.c +++ b/fs/partitions/sun.c @@ -80,8 +80,11 @@ int sun_partition(struct parsed_partitions *state, struct block_device *bdev) num_sectors = be32_to_cpu(p->num_sectors); if (num_sectors) { put_partition(state, slot, st_sector, num_sectors); + state->parts[slot].flags = 0; if (label->infos[i].id == LINUX_RAID_PARTITION) - state->parts[slot].flags = 1; + state->parts[slot].flags |= ADDPART_FLAG_RAID; + if (label->infos[i].id == SUN_WHOLE_DISK) + state->parts[slot].flags |= ADDPART_FLAG_WHOLEDISK; } slot++; } diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 0a022b2f63f..247734f7881 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -20,6 +20,8 @@ enum { LINUX_EXTENDED_PARTITION = 0x85, WIN98_EXTENDED_PARTITION = 0x0f, + SUN_WHOLE_DISK = DOS_EXTENDED_PARTITION, + LINUX_SWAP_PARTITION = 0x82, LINUX_RAID_PARTITION = 0xfd, /* autodetect RAID partition */ @@ -400,10 +402,14 @@ struct unixware_disklabel { #ifdef __KERNEL__ +#define ADDPART_FLAG_NONE 0 +#define ADDPART_FLAG_RAID 1 +#define ADDPART_FLAG_WHOLEDISK 2 + char *disk_name (struct gendisk *hd, int part, char *buf); extern int rescan_partitions(struct gendisk *disk, struct block_device *bdev); -extern void add_partition(struct gendisk *, int, sector_t, sector_t); +extern void add_partition(struct gendisk *, int, sector_t, sector_t, int); extern void delete_partition(struct gendisk *, int); extern struct gendisk *alloc_disk_node(int minors, int node_id); -- cgit v1.2.3 From cf69eab231bb748b5c34912412a8fc8c763bcf57 Mon Sep 17 00:00:00 2001 From: Fabio Massimo Di Nitto Date: Wed, 20 Dec 2006 09:22:28 -0800 Subject: [SPARC64]: Add obppath sysfs attribute for SBUS and PCI devices. Signed-off-by: Fabio Massimo Di Nitto Signed-off-by: David S. Miller --- arch/sparc64/kernel/pci_common.c | 25 ++++++++++++++++++++++++- drivers/sbus/sbus.c | 18 +++++++++++++++++- 2 files changed, 41 insertions(+), 2 deletions(-) diff --git a/arch/sparc64/kernel/pci_common.c b/arch/sparc64/kernel/pci_common.c index 827ae30aa49..5a92cb90ebe 100644 --- a/arch/sparc64/kernel/pci_common.c +++ b/arch/sparc64/kernel/pci_common.c @@ -7,6 +7,8 @@ #include #include #include +#include +#include #include #include @@ -129,6 +131,20 @@ static void __init fixup_obp_assignments(struct pci_dev *pdev, } } +static ssize_t +show_pciobppath_attr(struct device * dev, struct device_attribute * attr, char * buf) +{ + struct pci_dev *pdev; + struct pcidev_cookie *sysdata; + + pdev = to_pci_dev(dev); + sysdata = pdev->sysdata; + + return snprintf (buf, PAGE_SIZE, "%s\n", sysdata->prom_node->full_name); +} + +static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH, show_pciobppath_attr, NULL); + /* Fill in the PCI device cookie sysdata for the given * PCI device. This cookie is the means by which one * can get to OBP and PCI controller specific information @@ -142,7 +158,7 @@ static void __init pdev_cookie_fillin(struct pci_pbm_info *pbm, struct pcidev_cookie *pcp; struct device_node *dp; struct property *prop; - int nregs, len; + int nregs, len, err; dp = find_device_prom_node(pbm, pdev, bus_node, &pregs, &nregs); @@ -215,6 +231,13 @@ static void __init pdev_cookie_fillin(struct pci_pbm_info *pbm, fixup_obp_assignments(pdev, pcp); pdev->sysdata = pcp; + + /* we don't really care if we can create this file or not, + * but we need to assign the result of the call or the world will fall + * under alien invasion and everybody will be frozen on a spaceship + * ready to be eaten on alpha centauri by some green and jelly humanoid. + */ + err = sysfs_create_file(&pdev->dev.kobj, &dev_attr_obppath.attr); } void __init pci_fill_in_pbm_cookies(struct pci_bus *pbus, diff --git a/drivers/sbus/sbus.c b/drivers/sbus/sbus.c index 98fcbb3d556..6349dd617f8 100644 --- a/drivers/sbus/sbus.c +++ b/drivers/sbus/sbus.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include @@ -17,13 +18,25 @@ #include #include +static ssize_t +show_sbusobppath_attr(struct device * dev, struct device_attribute * attr, char * buf) +{ + struct sbus_dev *sbus; + + sbus = to_sbus_device(dev); + + return snprintf (buf, PAGE_SIZE, "%s\n", sbus->ofdev.node->full_name); +} + +static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH, show_sbusobppath_attr, NULL); + struct sbus_bus *sbus_root; static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sdev) { unsigned long base; void *pval; - int len; + int len, err; sdev->prom_node = dp->node; strcpy(sdev->prom_name, dp->name); @@ -66,6 +79,9 @@ static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sde if (of_device_register(&sdev->ofdev) != 0) printk(KERN_DEBUG "sbus: device registration error for %s!\n", dp->path_component_name); + + /* WE HAVE BEEN INVADED BY ALIENS! */ + err = sysfs_create_file(&sdev->ofdev.dev.kobj, &dev_attr_obppath.attr); } static void __init sbus_bus_ranges_init(struct device_node *dp, struct sbus_bus *sbus) -- cgit v1.2.3 From 68c921869491c119142612fa5796c9f8b4e9970b Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 29 Jan 2007 12:12:28 -0800 Subject: [SPARC64] IRQ: Use irq_desc->chip_data instead of irq_desc->handler_data Otherwise we can't use the generic MSI code. Furthermore, properly use the {get,set}_irq_foo() abstracted interfaces instead of direct accesses to irq_desc[]->foo. Signed-off-by: David S. Miller --- arch/sparc64/kernel/irq.c | 44 ++++++++++++++++++++------------------------ 1 file changed, 20 insertions(+), 24 deletions(-) diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c index c3d068c7a41..2873835e262 100644 --- a/arch/sparc64/kernel/irq.c +++ b/arch/sparc64/kernel/irq.c @@ -268,8 +268,7 @@ static int irq_choose_cpu(unsigned int virt_irq) static void sun4u_irq_enable(unsigned int virt_irq) { - irq_desc_t *desc = irq_desc + virt_irq; - struct irq_handler_data *data = desc->handler_data; + struct irq_handler_data *data = get_irq_chip_data(virt_irq); if (likely(data)) { unsigned long cpuid, imap; @@ -286,8 +285,7 @@ static void sun4u_irq_enable(unsigned int virt_irq) static void sun4u_irq_disable(unsigned int virt_irq) { - irq_desc_t *desc = irq_desc + virt_irq; - struct irq_handler_data *data = desc->handler_data; + struct irq_handler_data *data = get_irq_chip_data(virt_irq); if (likely(data)) { unsigned long imap = data->imap; @@ -300,8 +298,7 @@ static void sun4u_irq_disable(unsigned int virt_irq) static void sun4u_irq_end(unsigned int virt_irq) { - irq_desc_t *desc = irq_desc + virt_irq; - struct irq_handler_data *data = desc->handler_data; + struct irq_handler_data *data = get_irq_chip_data(virt_irq); if (likely(data)) upa_writel(ICLR_IDLE, data->iclr); @@ -362,8 +359,7 @@ static void sun4v_irq_end(unsigned int virt_irq) static void run_pre_handler(unsigned int virt_irq) { struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq); - irq_desc_t *desc = irq_desc + virt_irq; - struct irq_handler_data *data = desc->handler_data; + struct irq_handler_data *data = get_irq_chip_data(virt_irq); if (likely(data->pre_handler)) { data->pre_handler(__irq_ino(__irq(bucket)), @@ -406,26 +402,27 @@ void irq_install_pre_handler(int virt_irq, void (*func)(unsigned int, void *, void *), void *arg1, void *arg2) { - irq_desc_t *desc = irq_desc + virt_irq; - struct irq_handler_data *data = desc->handler_data; + struct irq_handler_data *data = get_irq_chip_data(virt_irq); + struct irq_chip *chip; data->pre_handler = func; data->pre_handler_arg1 = arg1; data->pre_handler_arg2 = arg2; - if (desc->chip == &sun4u_irq_ack || - desc->chip == &sun4v_irq_ack) + chip = get_irq_chip(virt_irq); + if (chip == &sun4u_irq_ack || + chip == &sun4v_irq_ack) return; - desc->chip = (desc->chip == &sun4u_irq ? - &sun4u_irq_ack : &sun4v_irq_ack); + chip = (chip == &sun4u_irq ? + &sun4u_irq_ack : &sun4v_irq_ack); + set_irq_chip(virt_irq, chip); } unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap) { struct ino_bucket *bucket; struct irq_handler_data *data; - irq_desc_t *desc; int ino; BUG_ON(tlb_type == hypervisor); @@ -434,11 +431,11 @@ unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap) bucket = &ivector_table[ino]; if (!bucket->virt_irq) { bucket->virt_irq = virt_irq_alloc(__irq(bucket)); - irq_desc[bucket->virt_irq].chip = &sun4u_irq; + set_irq_chip(bucket->virt_irq, &sun4u_irq); } - desc = irq_desc + bucket->virt_irq; - if (unlikely(desc->handler_data)) + data = get_irq_chip_data(bucket->virt_irq); + if (unlikely(data)) goto out; data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC); @@ -446,7 +443,7 @@ unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap) prom_printf("IRQ: kzalloc(irq_handler_data) failed.\n"); prom_halt(); } - desc->handler_data = data; + set_irq_chip_data(bucket->virt_irq, data); data->imap = imap; data->iclr = iclr; @@ -460,7 +457,6 @@ unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino) struct ino_bucket *bucket; struct irq_handler_data *data; unsigned long sysino; - irq_desc_t *desc; BUG_ON(tlb_type != hypervisor); @@ -468,11 +464,11 @@ unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino) bucket = &ivector_table[sysino]; if (!bucket->virt_irq) { bucket->virt_irq = virt_irq_alloc(__irq(bucket)); - irq_desc[bucket->virt_irq].chip = &sun4v_irq; + set_irq_chip(bucket->virt_irq, &sun4v_irq); } - desc = irq_desc + bucket->virt_irq; - if (unlikely(desc->handler_data)) + data = get_irq_chip_data(bucket->virt_irq); + if (unlikely(data)) goto out; data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC); @@ -480,7 +476,7 @@ unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino) prom_printf("IRQ: kzalloc(irq_handler_data) failed.\n"); prom_halt(); } - desc->handler_data = data; + set_irq_chip_data(bucket->virt_irq, data); /* Catch accidental accesses to these things. IMAP/ICLR handling * is done by hypervisor calls on sun4v platforms, not by direct -- cgit v1.2.3 From 35a17eb6a87c9ceb0d35dcb51f464fe6faf584ab Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 10 Feb 2007 17:41:02 -0800 Subject: [SPARC64]: Add PCI MSI support on Niagara. This is kind of hokey, we could use the hardware provided facilities much better. MSIs are assosciated with MSI Queues. MSI Queues generate interrupts when any MSI assosciated with it is signalled. This suggests a two-tiered IRQ dispatch scheme: MSI Queue interrupt --> queue interrupt handler MSI dispatch --> driver interrupt handler But we just get one-level under Linux currently. What I'd like to do is possibly stick the IRQ actions into a per-MSI-Queue data structure, and dispatch them form there, but the generic IRQ layer doesn't provide a way to do that right now. So, the current kludge is to "ACK" the interrupt by processing the MSI Queue data structures and ACK'ing them, then we run the actual handler like normal. We are wasting a lot of useful information, for example the MSI data and address are provided with ever MSI, as well as a system tick if available. If we could pass this into the IRQ handler it could help with certain things, in particular for PCI-Express error messages. The MSI entries on sparc64 also tell you exactly which bus/device/fn sent the MSI, which would be great for error handling when no registered IRQ handler can service the interrupt. We override the disable/enable IRQ chip methods in sun4v_msi, so we have to call {mask,unmask}_msi_irq() directly from there. This is another ugly wart. Signed-off-by: David S. Miller --- arch/sparc64/kernel/irq.c | 104 ++++++++- arch/sparc64/kernel/pci.c | 35 +++ arch/sparc64/kernel/pci_sun4v.c | 444 ++++++++++++++++++++++++++++++++++++ arch/sparc64/kernel/pci_sun4v.h | 61 +++++ arch/sparc64/kernel/pci_sun4v_asm.S | 266 +++++++++++++++++++++ drivers/pci/Kconfig | 2 +- include/asm-sparc64/irq.h | 4 + include/asm-sparc64/pbm.h | 28 +++ 8 files changed, 934 insertions(+), 10 deletions(-) diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c index 2873835e262..b5ff3ee5ace 100644 --- a/arch/sparc64/kernel/irq.c +++ b/arch/sparc64/kernel/irq.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include @@ -87,7 +88,6 @@ struct ino_bucket ivector_table[NUM_IVECS] __attribute__ ((aligned (SMP_CACHE_BY #define irq_work(__cpu) &(trap_block[(__cpu)].irq_worklist) static unsigned int virt_to_real_irq_table[NR_IRQS]; -static unsigned char virt_irq_cur = 1; static unsigned char virt_irq_alloc(unsigned int real_irq) { @@ -95,26 +95,32 @@ static unsigned char virt_irq_alloc(unsigned int real_irq) BUILD_BUG_ON(NR_IRQS >= 256); - ent = virt_irq_cur; + for (ent = 1; ent < NR_IRQS; ent++) { + if (!virt_to_real_irq_table[ent]) + break; + } if (ent >= NR_IRQS) { printk(KERN_ERR "IRQ: Out of virtual IRQs.\n"); return 0; } - virt_irq_cur = ent + 1; virt_to_real_irq_table[ent] = real_irq; return ent; } -#if 0 /* Currently unused. */ -static unsigned char real_to_virt_irq(unsigned int real_irq) +static void virt_irq_free(unsigned int virt_irq) { - struct ino_bucket *bucket = __bucket(real_irq); + unsigned int real_irq; - return bucket->virt_irq; + if (virt_irq >= NR_IRQS) + return; + + real_irq = virt_to_real_irq_table[virt_irq]; + virt_to_real_irq_table[virt_irq] = 0; + + __bucket(real_irq)->virt_irq = 0; } -#endif static unsigned int virt_to_real_irq(unsigned char virt_irq) { @@ -341,6 +347,20 @@ static void sun4v_irq_disable(unsigned int virt_irq) } } +#ifdef CONFIG_PCI_MSI +static void sun4v_msi_enable(unsigned int virt_irq) +{ + sun4v_irq_enable(virt_irq); + unmask_msi_irq(virt_irq); +} + +static void sun4v_msi_disable(unsigned int virt_irq) +{ + mask_msi_irq(virt_irq); + sun4v_irq_disable(virt_irq); +} +#endif + static void sun4v_irq_end(unsigned int virt_irq) { struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq); @@ -398,6 +418,18 @@ static struct irq_chip sun4v_irq_ack = { .end = sun4v_irq_end, }; +#ifdef CONFIG_PCI_MSI +static struct irq_chip sun4v_msi = { + .typename = "sun4v+msi", + .mask = mask_msi_irq, + .unmask = unmask_msi_irq, + .enable = sun4v_msi_enable, + .disable = sun4v_msi_disable, + .ack = run_pre_handler, + .end = sun4v_irq_end, +}; +#endif + void irq_install_pre_handler(int virt_irq, void (*func)(unsigned int, void *, void *), void *arg1, void *arg2) @@ -411,7 +443,11 @@ void irq_install_pre_handler(int virt_irq, chip = get_irq_chip(virt_irq); if (chip == &sun4u_irq_ack || - chip == &sun4v_irq_ack) + chip == &sun4v_irq_ack +#ifdef CONFIG_PCI_MSI + || chip == &sun4v_msi +#endif + ) return; chip = (chip == &sun4u_irq ? @@ -489,6 +525,56 @@ out: return bucket->virt_irq; } +#ifdef CONFIG_PCI_MSI +unsigned int sun4v_build_msi(u32 devhandle, unsigned int *virt_irq_p, + unsigned int msi_start, unsigned int msi_end) +{ + struct ino_bucket *bucket; + struct irq_handler_data *data; + unsigned long sysino; + unsigned int devino; + + BUG_ON(tlb_type != hypervisor); + + /* Find a free devino in the given range. */ + for (devino = msi_start; devino < msi_end; devino++) { + sysino = sun4v_devino_to_sysino(devhandle, devino); + bucket = &ivector_table[sysino]; + if (!bucket->virt_irq) + break; + } + if (devino >= msi_end) + return 0; + + sysino = sun4v_devino_to_sysino(devhandle, devino); + bucket = &ivector_table[sysino]; + bucket->virt_irq = virt_irq_alloc(__irq(bucket)); + *virt_irq_p = bucket->virt_irq; + set_irq_chip(bucket->virt_irq, &sun4v_msi); + + data = get_irq_chip_data(bucket->virt_irq); + if (unlikely(data)) + return devino; + + data = kzalloc(sizeof(struct irq_handler_data), GFP_ATOMIC); + if (unlikely(!data)) { + prom_printf("IRQ: kzalloc(irq_handler_data) failed.\n"); + prom_halt(); + } + set_irq_chip_data(bucket->virt_irq, data); + + data->imap = ~0UL; + data->iclr = ~0UL; + + return devino; +} + +void sun4v_destroy_msi(unsigned int virt_irq) +{ + virt_irq_free(virt_irq); +} +#endif + void ack_bad_irq(unsigned int virt_irq) { struct ino_bucket *bucket = virt_irq_to_bucket(virt_irq); diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c index dfc41cd4bb5..6b740eb6fe7 100644 --- a/arch/sparc64/kernel/pci.c +++ b/arch/sparc64/kernel/pci.c @@ -13,6 +13,8 @@ #include #include #include +#include +#include #include #include @@ -646,4 +648,37 @@ int pci_domain_nr(struct pci_bus *pbus) } EXPORT_SYMBOL(pci_domain_nr); +#ifdef CONFIG_PCI_MSI +int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc) +{ + struct pcidev_cookie *pcp = pdev->sysdata; + struct pci_pbm_info *pbm = pcp->pbm; + struct pci_controller_info *p = pbm->parent; + int virt_irq, err; + + if (!pbm->msi_num || !p->setup_msi_irq) + return -EINVAL; + + err = p->setup_msi_irq(&virt_irq, pdev, desc); + if (err < 0) + return err; + + return virt_irq; +} + +void arch_teardown_msi_irq(unsigned int virt_irq) +{ + struct msi_desc *entry = get_irq_data(virt_irq); + struct pci_dev *pdev = entry->dev; + struct pcidev_cookie *pcp = pdev->sysdata; + struct pci_pbm_info *pbm = pcp->pbm; + struct pci_controller_info *p = pbm->parent; + + if (!pbm->msi_num || !p->setup_msi_irq) + return; + + return p->teardown_msi_irq(virt_irq, pdev); +} +#endif /* !(CONFIG_PCI_MSI) */ + #endif /* !(CONFIG_PCI) */ diff --git a/arch/sparc64/kernel/pci_sun4v.c b/arch/sparc64/kernel/pci_sun4v.c index 6b04794b7a9..ec22cd61ec8 100644 --- a/arch/sparc64/kernel/pci_sun4v.c +++ b/arch/sparc64/kernel/pci_sun4v.c @@ -10,6 +10,8 @@ #include #include #include +#include +#include #include #include @@ -1074,6 +1076,443 @@ static void pci_sun4v_get_bus_range(struct pci_pbm_info *pbm) } +#ifdef CONFIG_PCI_MSI +struct pci_sun4v_msiq_entry { + u64 version_type; +#define MSIQ_VERSION_MASK 0xffffffff00000000UL +#define MSIQ_VERSION_SHIFT 32 +#define MSIQ_TYPE_MASK 0x00000000000000ffUL +#define MSIQ_TYPE_SHIFT 0 +#define MSIQ_TYPE_NONE 0x00 +#define MSIQ_TYPE_MSG 0x01 +#define MSIQ_TYPE_MSI32 0x02 +#define MSIQ_TYPE_MSI64 0x03 +#define MSIQ_TYPE_INTX 0x08 +#define MSIQ_TYPE_NONE2 0xff + + u64 intx_sysino; + u64 reserved1; + u64 stick; + u64 req_id; /* bus/device/func */ +#define MSIQ_REQID_BUS_MASK 0xff00UL +#define MSIQ_REQID_BUS_SHIFT 8 +#define MSIQ_REQID_DEVICE_MASK 0x00f8UL +#define MSIQ_REQID_DEVICE_SHIFT 3 +#define MSIQ_REQID_FUNC_MASK 0x0007UL +#define MSIQ_REQID_FUNC_SHIFT 0 + + u64 msi_address; + + /* The format of this value is message type dependant. + * For MSI bits 15:0 are the data from the MSI packet. + * For MSI-X bits 31:0 are the data from the MSI packet. + * For MSG, the message code and message routing code where: + * bits 39:32 is the bus/device/fn of the msg target-id + * bits 18:16 is the message routing code + * bits 7:0 is the message code + * For INTx the low order 2-bits are: + * 00 - INTA + * 01 - INTB + * 10 - INTC + * 11 - INTD + */ + u64 msi_data; + + u64 reserved2; +}; + +/* For now this just runs as a pre-handler for the real interrupt handler. + * So we just walk through the queue and ACK all the entries, update the + * head pointer, and return. + * + * In the longer term it would be nice to do something more integrated + * wherein we can pass in some of this MSI info to the drivers. This + * would be most useful for PCIe fabric error messages, although we could + * invoke those directly from the loop here in order to pass the info around. + */ +static void pci_sun4v_msi_prehandler(unsigned int ino, void *data1, void *data2) +{ + struct pci_pbm_info *pbm = data1; + struct pci_sun4v_msiq_entry *base, *ep; + unsigned long msiqid, orig_head, head, type, err; + + msiqid = (unsigned long) data2; + + head = 0xdeadbeef; + err = pci_sun4v_msiq_gethead(pbm->devhandle, msiqid, &head); + if (unlikely(err)) + goto hv_error_get; + + if (unlikely(head >= (pbm->msiq_ent_count * sizeof(struct pci_sun4v_msiq_entry)))) + goto bad_offset; + + head /= sizeof(struct pci_sun4v_msiq_entry); + orig_head = head; + base = (pbm->msi_queues + ((msiqid - pbm->msiq_first) * + (pbm->msiq_ent_count * + sizeof(struct pci_sun4v_msiq_entry)))); + ep = &base[head]; + while ((ep->version_type & MSIQ_TYPE_MASK) != 0) { + type = (ep->version_type & MSIQ_TYPE_MASK) >> MSIQ_TYPE_SHIFT; + if (unlikely(type != MSIQ_TYPE_MSI32 && + type != MSIQ_TYPE_MSI64)) + goto bad_type; + + pci_sun4v_msi_setstate(pbm->devhandle, + ep->msi_data /* msi_num */, + HV_MSISTATE_IDLE); + + /* Clear the entry. */ + ep->version_type &= ~MSIQ_TYPE_MASK; + + /* Go to next entry in ring. */ + head++; + if (head >= pbm->msiq_ent_count) + head = 0; + ep = &base[head]; + } + + if (likely(head != orig_head)) { + /* ACK entries by updating head pointer. */ + head *= sizeof(struct pci_sun4v_msiq_entry); + err = pci_sun4v_msiq_sethead(pbm->devhandle, msiqid, head); + if (unlikely(err)) + goto hv_error_set; + } + return; + +hv_error_set: + printk(KERN_EMERG "MSI: Hypervisor set head gives error %lu\n", err); + goto hv_error_cont; + +hv_error_get: + printk(KERN_EMERG "MSI: Hypervisor get head gives error %lu\n", err); + +hv_error_cont: + printk(KERN_EMERG "MSI: devhandle[%x] msiqid[%lx] head[%lu]\n", + pbm->devhandle, msiqid, head); + return; + +bad_offset: + printk(KERN_EMERG "MSI: Hypervisor gives bad offset %lx max(%lx)\n", + head, pbm->msiq_ent_count * sizeof(struct pci_sun4v_msiq_entry)); + return; + +bad_type: + printk(KERN_EMERG "MSI: Entry has bad type %lx\n", type); + return; +} + +static int msi_bitmap_alloc(struct pci_pbm_info *pbm) +{ + unsigned long size, bits_per_ulong; + + bits_per_ulong = sizeof(unsigned long) * 8; + size = (pbm->msi_num + (bits_per_ulong - 1)) & ~(bits_per_ulong - 1); + size /= 8; + BUG_ON(size % sizeof(unsigned long)); + + pbm->msi_bitmap = kzalloc(size, GFP_KERNEL); + if (!pbm->msi_bitmap) + return -ENOMEM; + + return 0; +} + +static void msi_bitmap_free(struct pci_pbm_info *pbm) +{ + kfree(pbm->msi_bitmap); + pbm->msi_bitmap = NULL; +} + +static int msi_queue_alloc(struct pci_pbm_info *pbm) +{ + unsigned long q_size, alloc_size, pages, order; + int i; + + q_size = pbm->msiq_ent_count * sizeof(struct pci_sun4v_msiq_entry); + alloc_size = (pbm->msiq_num * q_size); + order = get_order(alloc_size); + pages = __get_free_pages(GFP_KERNEL | __GFP_COMP, order); + if (pages == 0UL) { + printk(KERN_ERR "MSI: Cannot allocate MSI queues (o=%lu).\n", + order); + return -ENOMEM; + } + memset((char *)pages, 0, PAGE_SIZE << order); + pbm->msi_queues = (void *) pages; + + for (i = 0; i < pbm->msiq_num; i++) { + unsigned long err, base = __pa(pages + (i * q_size)); + unsigned long ret1, ret2; + + err = pci_sun4v_msiq_conf(pbm->devhandle, + pbm->msiq_first + i, + base, pbm->msiq_ent_count); + if (err) { + printk(KERN_ERR "MSI: msiq register fails (err=%lu)\n", + err); + goto h_error; + } + + err = pci_sun4v_msiq_info(pbm->devhandle, + pbm->msiq_first + i, + &ret1, &ret2); + if (err) { + printk(KERN_ERR "MSI: Cannot read msiq (err=%lu)\n", + err); + goto h_error; + } + if (ret1 != base || ret2 != pbm->msiq_ent_count) { + printk(KERN_ERR "MSI: Bogus qconf " + "expected[%lx:%x] got[%lx:%lx]\n", + base, pbm->msiq_ent_count, + ret1, ret2); + goto h_error; + } + } + + return 0; + +h_error: + free_pages(pages, order); + return -EINVAL; +} + +static void pci_sun4v_msi_init(struct pci_pbm_info *pbm) +{ + u32 *val; + int len; + + val = of_get_property(pbm->prom_node, "#msi-eqs", &len); + if (!val || len != 4) + goto no_msi; + pbm->msiq_num = *val; + if (pbm->msiq_num) { + struct msiq_prop { + u32 first_msiq; + u32 num_msiq; + u32 first_devino; + } *mqp; + struct msi_range_prop { + u32 first_msi; + u32 num_msi; + } *mrng; + struct addr_range_prop { + u32 msi32_high; + u32 msi32_low; + u32 msi32_len; + u32 msi64_high; + u32 msi64_low; + u32 msi64_len; + } *arng; + + val = of_get_property(pbm->prom_node, "msi-eq-size", &len); + if (!val || len != 4) + goto no_msi; + + pbm->msiq_ent_count = *val; + + mqp = of_get_property(pbm->prom_node, + "msi-eq-to-devino", &len); + if (!mqp || len != sizeof(struct msiq_prop)) + goto no_msi; + + pbm->msiq_first = mqp->first_msiq; + pbm->msiq_first_devino = mqp->first_devino; + + val = of_get_property(pbm->prom_node, "#msi", &len); + if (!val || len != 4) + goto no_msi; + pbm->msi_num = *val; + + mrng = of_get_property(pbm->prom_node, "msi-ranges", &len); + if (!mrng || len != sizeof(struct msi_range_prop)) + goto no_msi; + pbm->msi_first = mrng->first_msi; + + val = of_get_property(pbm->prom_node, "msi-data-mask", &len); + if (!val || len != 4) + goto no_msi; + pbm->msi_data_mask = *val; + + val = of_get_property(pbm->prom_node, "msix-data-width", &len); + if (!val || len != 4) + goto no_msi; + pbm->msix_data_width = *val; + + arng = of_get_property(pbm->prom_node, "msi-address-ranges", + &len); + if (!arng || len != sizeof(struct addr_range_prop)) + goto no_msi; + pbm->msi32_start = ((u64)arng->msi32_high << 32) | + (u64) arng->msi32_low; + pbm->msi64_start = ((u64)arng->msi64_high << 32) | + (u64) arng->msi64_low; + pbm->msi32_len = arng->msi32_len; + pbm->msi64_len = arng->msi64_len; + + if (msi_bitmap_alloc(pbm)) + goto no_msi; + + if (msi_queue_alloc(pbm)) { + msi_bitmap_free(pbm); + goto no_msi; + } + + printk(KERN_INFO "%s: MSI Queue first[%u] num[%u] count[%u] " + "devino[0x%x]\n", + pbm->name, + pbm->msiq_first, pbm->msiq_num, + pbm->msiq_ent_count, + pbm->msiq_first_devino); + printk(KERN_INFO "%s: MSI first[%u] num[%u] mask[0x%x] " + "width[%u]\n", + pbm->name, + pbm->msi_first, pbm->msi_num, pbm->msi_data_mask, + pbm->msix_data_width); + printk(KERN_INFO "%s: MSI addr32[0x%lx:0x%x] " + "addr64[0x%lx:0x%x]\n", + pbm->name, + pbm->msi32_start, pbm->msi32_len, + pbm->msi64_start, pbm->msi64_len); + printk(KERN_INFO "%s: MSI queues at RA [%p]\n", + pbm->name, + pbm->msi_queues); + } + + return; + +no_msi: + pbm->msiq_num = 0; + printk(KERN_INFO "%s: No MSI support.\n", pbm->name); +} + +static int alloc_msi(struct pci_pbm_info *pbm) +{ + int i; + + for (i = 0; i < pbm->msi_num; i++) { + if (!test_and_set_bit(i, pbm->msi_bitmap)) + return i + pbm->msi_first; + } + + return -ENOENT; +} + +static void free_msi(struct pci_pbm_info *pbm, int msi_num) +{ + msi_num -= pbm->msi_first; + clear_bit(msi_num, pbm->msi_bitmap); +} + +static int pci_sun4v_setup_msi_irq(unsigned int *virt_irq_p, + struct pci_dev *pdev, + struct msi_desc *entry) +{ + struct pcidev_cookie *pcp = pdev->sysdata; + struct pci_pbm_info *pbm = pcp->pbm; + unsigned long devino, msiqid; + struct msi_msg msg; + int msi_num, err; + + *virt_irq_p = 0; + + msi_num = alloc_msi(pbm); + if (msi_num < 0) + return msi_num; + + devino = sun4v_build_msi(pbm->devhandle, virt_irq_p, + pbm->msiq_first_devino, + (pbm->msiq_first_devino + + pbm->msiq_num)); + err = -ENOMEM; + if (!devino) + goto out_err; + + set_irq_msi(*virt_irq_p, entry); + + msiqid = ((devino - pbm->msiq_first_devino) + + pbm->msiq_first); + + err = -EINVAL; + if (pci_sun4v_msiq_setstate(pbm->devhandle, msiqid, HV_MSIQSTATE_IDLE)) + if (err) + goto out_err; + + if (pci_sun4v_msiq_setvalid(pbm->devhandle, msiqid, HV_MSIQ_VALID)) + goto out_err; + + if (pci_sun4v_msi_setmsiq(pbm->devhandle, + msi_num, msiqid, + (entry->msi_attrib.is_64 ? + HV_MSITYPE_MSI64 : HV_MSITYPE_MSI32))) + goto out_err; + + if (pci_sun4v_msi_setstate(pbm->devhandle, msi_num, HV_MSISTATE_IDLE)) + goto out_err; + + if (pci_sun4v_msi_setvalid(pbm->devhandle, msi_num, HV_MSIVALID_VALID)) + goto out_err; + + pcp->msi_num = msi_num; + + if (entry->msi_attrib.is_64) { + msg.address_hi = pbm->msi64_start >> 32; + msg.address_lo = pbm->msi64_start & 0xffffffff; + } else { + msg.address_hi = 0; + msg.address_lo = pbm->msi32_start; + } + msg.data = msi_num; + write_msi_msg(*virt_irq_p, &msg); + + irq_install_pre_handler(*virt_irq_p, + pci_sun4v_msi_prehandler, + pbm, (void *) msiqid); + + return 0; + +out_err: + free_msi(pbm, msi_num); + sun4v_destroy_msi(*virt_irq_p); + *virt_irq_p = 0; + return err; + +} + +static void pci_sun4v_teardown_msi_irq(unsigned int virt_irq, + struct pci_dev *pdev) +{ + struct pcidev_cookie *pcp = pdev->sysdata; + struct pci_pbm_info *pbm = pcp->pbm; + unsigned long msiqid, err; + unsigned int msi_num; + + msi_num = pcp->msi_num; + err = pci_sun4v_msi_getmsiq(pbm->devhandle, msi_num, &msiqid); + if (err) { + printk(KERN_ERR "%s: getmsiq gives error %lu\n", + pbm->name, err); + return; + } + + pci_sun4v_msi_setvalid(pbm->devhandle, msi_num, HV_MSIVALID_INVALID); + pci_sun4v_msiq_setvalid(pbm->devhandle, msiqid, HV_MSIQ_INVALID); + + free_msi(pbm, msi_num); + + /* The sun4v_destroy_msi() will liberate the devino and thus the MSIQ + * allocation. + */ + sun4v_destroy_msi(virt_irq); +} +#else /* CONFIG_PCI_MSI */ +static void pci_sun4v_msi_init(struct pci_pbm_info *pbm) +{ +} +#endif /* !(CONFIG_PCI_MSI) */ + static void pci_sun4v_pbm_init(struct pci_controller_info *p, struct device_node *dp, u32 devhandle) { struct pci_pbm_info *pbm; @@ -1119,6 +1558,7 @@ static void pci_sun4v_pbm_init(struct pci_controller_info *p, struct device_node pci_sun4v_get_bus_range(pbm); pci_sun4v_iommu_init(pbm); + pci_sun4v_msi_init(pbm); pdev_htab_populate(pbm); } @@ -1187,6 +1627,10 @@ void sun4v_pci_init(struct device_node *dp, char *model_name) p->scan_bus = pci_sun4v_scan_bus; p->base_address_update = pci_sun4v_base_address_update; p->resource_adjust = pci_sun4v_resource_adjust; +#ifdef CONFIG_PCI_MSI + p->setup_msi_irq = pci_sun4v_setup_msi_irq; + p->teardown_msi_irq = pci_sun4v_teardown_msi_irq; +#endif p->pci_ops = &pci_sun4v_ops; /* Like PSYCHO and SCHIZO we have a 2GB aligned area diff --git a/arch/sparc64/kernel/pci_sun4v.h b/arch/sparc64/kernel/pci_sun4v.h index 884d25f6158..8e9fc3a5b4f 100644 --- a/arch/sparc64/kernel/pci_sun4v.h +++ b/arch/sparc64/kernel/pci_sun4v.h @@ -28,4 +28,65 @@ extern int pci_sun4v_config_put(unsigned long devhandle, unsigned long size, unsigned long data); +extern unsigned long pci_sun4v_msiq_conf(unsigned long devhandle, + unsigned long msiqid, + unsigned long msiq_paddr, + unsigned long num_entries); +extern unsigned long pci_sun4v_msiq_info(unsigned long devhandle, + unsigned long msiqid, + unsigned long *msiq_paddr, + unsigned long *num_entries); +extern unsigned long pci_sun4v_msiq_getvalid(unsigned long devhandle, + unsigned long msiqid, + unsigned long *valid); +extern unsigned long pci_sun4v_msiq_setvalid(unsigned long devhandle, + unsigned long msiqid, + unsigned long valid); +extern unsigned long pci_sun4v_msiq_getstate(unsigned long devhandle, + unsigned long msiqid, + unsigned long *state); +extern unsigned long pci_sun4v_msiq_setstate(unsigned long devhandle, + unsigned long msiqid, + unsigned long state); +extern unsigned long pci_sun4v_msiq_gethead(unsigned long devhandle, + unsigned long msiqid, + unsigned long *head); +extern unsigned long pci_sun4v_msiq_sethead(unsigned long devhandle, + unsigned long msiqid, + unsigned long head); +extern unsigned long pci_sun4v_msiq_gettail(unsigned long devhandle, + unsigned long msiqid, + unsigned long *head); +extern unsigned long pci_sun4v_msi_getvalid(unsigned long devhandle, + unsigned long msinum, + unsigned long *valid); +extern unsigned long pci_sun4v_msi_setvalid(unsigned long devhandle, + unsigned long msinum, + unsigned long valid); +extern unsigned long pci_sun4v_msi_getmsiq(unsigned long devhandle, + unsigned long msinum, + unsigned long *msiq); +extern unsigned long pci_sun4v_msi_setmsiq(unsigned long devhandle, + unsigned long msinum, + unsigned long msiq, + unsigned long msitype); +extern unsigned long pci_sun4v_msi_getstate(unsigned long devhandle, + unsigned long msinum, + unsigned long *state); +extern unsigned long pci_sun4v_msi_setstate(unsigned long devhandle, + unsigned long msinum, + unsigned long state); +extern unsigned long pci_sun4v_msg_getmsiq(unsigned long devhandle, + unsigned long msinum, + unsigned long *msiq); +extern unsigned long pci_sun4v_msg_setmsiq(unsigned long devhandle, + unsigned long msinum, + unsigned long msiq); +extern unsigned long pci_sun4v_msg_getvalid(unsigned long devhandle, + unsigned long msinum, + unsigned long *valid); +extern unsigned long pci_sun4v_msg_setvalid(unsigned long devhandle, + unsigned long msinum, + unsigned long valid); + #endif /* !(_PCI_SUN4V_H) */ diff --git a/arch/sparc64/kernel/pci_sun4v_asm.S b/arch/sparc64/kernel/pci_sun4v_asm.S index 6604fdbf746..ecb81f389b0 100644 --- a/arch/sparc64/kernel/pci_sun4v_asm.S +++ b/arch/sparc64/kernel/pci_sun4v_asm.S @@ -93,3 +93,269 @@ pci_sun4v_config_put: mov -1, %o1 1: retl mov %o1, %o0 + + /* %o0: devhandle + * %o1: msiqid + * %o2: msiq phys address + * %o3: num entries + * + * returns %o0: status + * + * status will be zero if the operation completed + * successfully, else -1 if not + */ + .globl pci_sun4v_msiq_conf +pci_sun4v_msiq_conf: + mov HV_FAST_PCI_MSIQ_CONF, %o5 + ta HV_FAST_TRAP + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msiqid + * %o2: &msiq_phys_addr + * %o3: &msiq_num_entries + * + * returns %o0: status + */ + .globl pci_sun4v_msiq_info +pci_sun4v_msiq_info: + mov %o2, %o4 + mov HV_FAST_PCI_MSIQ_INFO, %o5 + ta HV_FAST_TRAP + stx %o1, [%o4] + stx %o2, [%o3] + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msiqid + * %o2: &valid + * + * returns %o0: status + */ + .globl pci_sun4v_msiq_getvalid +pci_sun4v_msiq_getvalid: + mov HV_FAST_PCI_MSIQ_GETVALID, %o5 + ta HV_FAST_TRAP + stx %o1, [%o2] + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msiqid + * %o2: valid + * + * returns %o0: status + */ + .globl pci_sun4v_msiq_setvalid +pci_sun4v_msiq_setvalid: + mov HV_FAST_PCI_MSIQ_SETVALID, %o5 + ta HV_FAST_TRAP + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msiqid + * %o2: &state + * + * returns %o0: status + */ + .globl pci_sun4v_msiq_getstate +pci_sun4v_msiq_getstate: + mov HV_FAST_PCI_MSIQ_GETSTATE, %o5 + ta HV_FAST_TRAP + stx %o1, [%o2] + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msiqid + * %o2: state + * + * returns %o0: status + */ + .globl pci_sun4v_msiq_setstate +pci_sun4v_msiq_setstate: + mov HV_FAST_PCI_MSIQ_SETSTATE, %o5 + ta HV_FAST_TRAP + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msiqid + * %o2: &head + * + * returns %o0: status + */ + .globl pci_sun4v_msiq_gethead +pci_sun4v_msiq_gethead: + mov HV_FAST_PCI_MSIQ_GETHEAD, %o5 + ta HV_FAST_TRAP + stx %o1, [%o2] + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msiqid + * %o2: head + * + * returns %o0: status + */ + .globl pci_sun4v_msiq_sethead +pci_sun4v_msiq_sethead: + mov HV_FAST_PCI_MSIQ_SETHEAD, %o5 + ta HV_FAST_TRAP + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msiqid + * %o2: &tail + * + * returns %o0: status + */ + .globl pci_sun4v_msiq_gettail +pci_sun4v_msiq_gettail: + mov HV_FAST_PCI_MSIQ_GETTAIL, %o5 + ta HV_FAST_TRAP + stx %o1, [%o2] + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msinum + * %o2: &valid + * + * returns %o0: status + */ + .globl pci_sun4v_msi_getvalid +pci_sun4v_msi_getvalid: + mov HV_FAST_PCI_MSI_GETVALID, %o5 + ta HV_FAST_TRAP + stx %o1, [%o2] + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msinum + * %o2: valid + * + * returns %o0: status + */ + .globl pci_sun4v_msi_setvalid +pci_sun4v_msi_setvalid: + mov HV_FAST_PCI_MSI_SETVALID, %o5 + ta HV_FAST_TRAP + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msinum + * %o2: &msiq + * + * returns %o0: status + */ + .globl pci_sun4v_msi_getmsiq +pci_sun4v_msi_getmsiq: + mov HV_FAST_PCI_MSI_GETMSIQ, %o5 + ta HV_FAST_TRAP + stx %o1, [%o2] + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msinum + * %o2: msitype + * %o3: msiq + * + * returns %o0: status + */ + .globl pci_sun4v_msi_setmsiq +pci_sun4v_msi_setmsiq: + mov HV_FAST_PCI_MSI_SETMSIQ, %o5 + ta HV_FAST_TRAP + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msinum + * %o2: &state + * + * returns %o0: status + */ + .globl pci_sun4v_msi_getstate +pci_sun4v_msi_getstate: + mov HV_FAST_PCI_MSI_GETSTATE, %o5 + ta HV_FAST_TRAP + stx %o1, [%o2] + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msinum + * %o2: state + * + * returns %o0: status + */ + .globl pci_sun4v_msi_setstate +pci_sun4v_msi_setstate: + mov HV_FAST_PCI_MSI_SETSTATE, %o5 + ta HV_FAST_TRAP + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msinum + * %o2: &msiq + * + * returns %o0: status + */ + .globl pci_sun4v_msg_getmsiq +pci_sun4v_msg_getmsiq: + mov HV_FAST_PCI_MSG_GETMSIQ, %o5 + ta HV_FAST_TRAP + stx %o1, [%o2] + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msinum + * %o2: msiq + * + * returns %o0: status + */ + .globl pci_sun4v_msg_setmsiq +pci_sun4v_msg_setmsiq: + mov HV_FAST_PCI_MSG_SETMSIQ, %o5 + ta HV_FAST_TRAP + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msinum + * %o2: &valid + * + * returns %o0: status + */ + .globl pci_sun4v_msg_getvalid +pci_sun4v_msg_getvalid: + mov HV_FAST_PCI_MSG_GETVALID, %o5 + ta HV_FAST_TRAP + stx %o1, [%o2] + retl + mov %o0, %o0 + + /* %o0: devhandle + * %o1: msinum + * %o2: valid + * + * returns %o0: status + */ + .globl pci_sun4v_msg_setvalid +pci_sun4v_msg_setvalid: + mov HV_FAST_PCI_MSG_SETVALID, %o5 + ta HV_FAST_TRAP + retl + mov %o0, %o0 + diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index 3cfb0a3575e..5ea5bc70cb8 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -4,7 +4,7 @@ config PCI_MSI bool "Message Signaled Interrupts (MSI and MSI-X)" depends on PCI - depends on (X86_LOCAL_APIC && X86_IO_APIC) || IA64 + depends on (X86_LOCAL_APIC && X86_IO_APIC) || IA64 || SPARC64 help This allows device drivers to enable MSI (Message Signaled Interrupts). Message Signaled Interrupts enable a device to diff --git a/include/asm-sparc64/irq.h b/include/asm-sparc64/irq.h index 905e59b4a73..5d233b42fe1 100644 --- a/include/asm-sparc64/irq.h +++ b/include/asm-sparc64/irq.h @@ -46,6 +46,10 @@ extern void irq_install_pre_handler(int virt_irq, #define irq_canonicalize(irq) (irq) extern unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap); extern unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino); +extern unsigned int sun4v_build_msi(u32 devhandle, unsigned int *virt_irq_p, + unsigned int msi_devino_start, + unsigned int msi_devino_end); +extern void sun4v_destroy_msi(unsigned int virt_irq); extern unsigned int sbus_build_irq(void *sbus, unsigned int ino); static __inline__ void set_softint(unsigned long bits) diff --git a/include/asm-sparc64/pbm.h b/include/asm-sparc64/pbm.h index dcfa7629358..7a246d8a182 100644 --- a/include/asm-sparc64/pbm.h +++ b/include/asm-sparc64/pbm.h @@ -11,6 +11,7 @@ #include #include #include +#include #include #include @@ -177,6 +178,24 @@ struct pci_pbm_info { int is_66mhz_capable; int all_devs_66mhz; +#ifdef CONFIG_PCI_MSI + /* MSI info. */ + u32 msiq_num; + u32 msiq_ent_count; + u32 msiq_first; + u32 msiq_first_devino; + u32 msi_num; + u32 msi_first; + u32 msi_data_mask; + u32 msix_data_width; + u64 msi32_start; + u64 msi64_start; + u32 msi32_len; + u32 msi64_len; + void *msi_queues; + unsigned long *msi_bitmap; +#endif /* !(CONFIG_PCI_MSI) */ + /* This PBM's streaming buffer. */ struct pci_strbuf stc; @@ -213,6 +232,12 @@ struct pci_controller_info { void (*base_address_update)(struct pci_dev *, int); void (*resource_adjust)(struct pci_dev *, struct resource *, struct resource *); +#ifdef CONFIG_PCI_MSI + int (*setup_msi_irq)(unsigned int *virt_irq_p, struct pci_dev *pdev, + struct msi_desc *entry); + void (*teardown_msi_irq)(unsigned int virt_irq, struct pci_dev *pdev); +#endif + /* Now things for the actual PCI bus probes. */ struct pci_ops *pci_ops; unsigned int pci_first_busno; @@ -231,6 +256,9 @@ struct pcidev_cookie { int num_prom_regs; struct linux_prom_pci_registers prom_assignments[PROMREG_MAX]; int num_prom_assignments; +#ifdef CONFIG_PCI_MSI + unsigned int msi_num; +#endif }; /* Currently these are the same across all PCI controllers -- cgit v1.2.3 From 784020fb950741cbb7390c6b622321da626fb1e8 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 10 Feb 2007 23:28:13 -0800 Subject: [SPARC64]: Update defconfig. Signed-off-by: David S. Miller --- arch/sparc64/defconfig | 41 ++++++++++++++++++++++++++++++++++------- 1 file changed, 34 insertions(+), 7 deletions(-) diff --git a/arch/sparc64/defconfig b/arch/sparc64/defconfig index 5a9e68b13e6..069ee3ccd84 100644 --- a/arch/sparc64/defconfig +++ b/arch/sparc64/defconfig @@ -1,7 +1,7 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.20-rc2 -# Thu Dec 28 15:09:49 2006 +# Linux kernel version: 2.6.20 +# Sat Feb 10 23:08:12 2007 # CONFIG_SPARC=y CONFIG_SPARC64=y @@ -151,7 +151,7 @@ CONFIG_SUN_AUXIO=y CONFIG_SUN_IO=y CONFIG_PCI=y CONFIG_PCI_DOMAINS=y -# CONFIG_PCI_MULTITHREAD_PROBE is not set +CONFIG_PCI_MSI=y # CONFIG_PCI_DEBUG is not set CONFIG_SUN_OPENPROMFS=m CONFIG_SPARC32_COMPAT=y @@ -182,7 +182,9 @@ CONFIG_UNIX=y CONFIG_XFRM=y CONFIG_XFRM_USER=m # CONFIG_XFRM_SUB_POLICY is not set +CONFIG_XFRM_MIGRATE=y CONFIG_NET_KEY=m +CONFIG_NET_KEY_MIGRATE=y CONFIG_INET=y CONFIG_IP_MULTICAST=y # CONFIG_IP_ADVANCED_ROUTER is not set @@ -300,6 +302,7 @@ CONFIG_STANDALONE=y # CONFIG_PREVENT_FIRMWARE_BUILD is not set CONFIG_FW_LOADER=y # CONFIG_DEBUG_DRIVER is not set +# CONFIG_DEBUG_DEVRES is not set # CONFIG_SYS_HYPERVISOR is not set # @@ -393,6 +396,7 @@ CONFIG_BLK_DEV_ALI15X3=y # CONFIG_BLK_DEV_JMICRON is not set # CONFIG_BLK_DEV_SC1200 is not set # CONFIG_BLK_DEV_PIIX is not set +# CONFIG_BLK_DEV_IT8213 is not set # CONFIG_BLK_DEV_IT821X is not set # CONFIG_BLK_DEV_NS87415 is not set # CONFIG_BLK_DEV_PDC202XX_OLD is not set @@ -402,6 +406,7 @@ CONFIG_BLK_DEV_ALI15X3=y # CONFIG_BLK_DEV_SLC90E66 is not set # CONFIG_BLK_DEV_TRM290 is not set # CONFIG_BLK_DEV_VIA82CXXX is not set +# CONFIG_BLK_DEV_TC86C001 is not set # CONFIG_IDE_ARM is not set CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_IVB is not set @@ -579,6 +584,7 @@ CONFIG_NET_PCI=y # CONFIG_EPIC100 is not set # CONFIG_SUNDANCE is not set # CONFIG_VIA_RHINE is not set +# CONFIG_SC92031 is not set # # Ethernet (1000 Mbit) @@ -601,11 +607,13 @@ CONFIG_E1000_NAPI=y CONFIG_TIGON3=m CONFIG_BNX2=m # CONFIG_QLA3XXX is not set +# CONFIG_ATL1 is not set # # Ethernet (10000 Mbit) # # CONFIG_CHELSIO_T1 is not set +# CONFIG_CHELSIO_T3 is not set # CONFIG_IXGB is not set # CONFIG_S2IO is not set # CONFIG_MYRI10GE is not set @@ -627,8 +635,17 @@ CONFIG_BNX2=m # CONFIG_WAN is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set -# CONFIG_PPP is not set +CONFIG_PPP=m +CONFIG_PPP_MULTILINK=y +CONFIG_PPP_FILTER=y +CONFIG_PPP_ASYNC=m +CONFIG_PPP_SYNC_TTY=m +CONFIG_PPP_DEFLATE=m +CONFIG_PPP_BSDCOMP=m +CONFIG_PPP_MPPE=m +CONFIG_PPPOE=m # CONFIG_SLIP is not set +CONFIG_SLHC=m # CONFIG_NET_FC is not set # CONFIG_SHAPER is not set # CONFIG_NETCONSOLE is not set @@ -1042,6 +1059,11 @@ CONFIG_SND_ALI5451=m CONFIG_SND_SUN_CS4231=m # CONFIG_SND_SUN_DBRI is not set +# +# SoC audio support +# +# CONFIG_SND_SOC is not set + # # Open Sound System # @@ -1052,6 +1074,7 @@ CONFIG_AC97_BUS=m # HID Devices # CONFIG_HID=y +# CONFIG_HID_DEBUG is not set # # USB support @@ -1066,9 +1089,7 @@ CONFIG_USB=y # Miscellaneous USB options # CONFIG_USB_DEVICEFS=y -# CONFIG_USB_BANDWIDTH is not set # CONFIG_USB_DYNAMIC_MINORS is not set -# CONFIG_USB_MULTITHREAD_PROBE is not set # CONFIG_USB_OTG is not set # @@ -1078,9 +1099,11 @@ CONFIG_USB_EHCI_HCD=m # CONFIG_USB_EHCI_SPLIT_ISO is not set # CONFIG_USB_EHCI_ROOT_HUB_TT is not set # CONFIG_USB_EHCI_TT_NEWSCHED is not set +# CONFIG_USB_EHCI_BIG_ENDIAN_MMIO is not set # CONFIG_USB_ISP116X_HCD is not set CONFIG_USB_OHCI_HCD=y -# CONFIG_USB_OHCI_BIG_ENDIAN is not set +# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set +# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set CONFIG_USB_OHCI_LITTLE_ENDIAN=y CONFIG_USB_UHCI_HCD=m # CONFIG_USB_SL811_HCD is not set @@ -1132,6 +1155,7 @@ CONFIG_USB_HIDDEV=y # CONFIG_USB_ATI_REMOTE2 is not set # CONFIG_USB_KEYSPAN_REMOTE is not set # CONFIG_USB_APPLETOUCH is not set +# CONFIG_USB_GTCO is not set # # USB Imaging devices @@ -1473,8 +1497,10 @@ CONFIG_CRYPTO_TGR192=m CONFIG_CRYPTO_GF128MUL=m CONFIG_CRYPTO_ECB=m CONFIG_CRYPTO_CBC=y +CONFIG_CRYPTO_PCBC=m CONFIG_CRYPTO_LRW=m CONFIG_CRYPTO_DES=y +CONFIG_CRYPTO_FCRYPT=m CONFIG_CRYPTO_BLOWFISH=m CONFIG_CRYPTO_TWOFISH=m CONFIG_CRYPTO_TWOFISH_COMMON=m @@ -1489,6 +1515,7 @@ CONFIG_CRYPTO_ANUBIS=m CONFIG_CRYPTO_DEFLATE=y CONFIG_CRYPTO_MICHAEL_MIC=m CONFIG_CRYPTO_CRC32C=m +CONFIG_CRYPTO_CAMELLIA=m CONFIG_CRYPTO_TEST=m # -- cgit v1.2.3