diff options
37 files changed, 353 insertions, 273 deletions
diff --git a/Documentation/i2c/busses/i2c-piix4 b/Documentation/i2c/busses/i2c-piix4 index 1e6634f54c5..a370b2047cf 100644 --- a/Documentation/i2c/busses/i2c-piix4 +++ b/Documentation/i2c/busses/i2c-piix4 @@ -13,7 +13,7 @@ Supported adapters: * AMD SP5100 (SB700 derivative found on some server mainboards) Datasheet: Publicly available at the AMD website http://support.amd.com/us/Embedded_TechDocs/44413.pdf - * AMD Hudson-2 + * AMD Hudson-2, CZ Datasheet: Not publicly available * Standard Microsystems (SMSC) SLC90E66 (Victory66) southbridge Datasheet: Publicly available at the SMSC website http://www.smsc.com diff --git a/MAINTAINERS b/MAINTAINERS index 6d9578131c3..f4c2bc73fd2 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -244,6 +244,9 @@ F: include/linux/acpi.h F: include/acpi/ F: Documentation/acpi F: Documentation/ABI/testing/sysfs-bus-acpi +F: drivers/pci/*acpi* +F: drivers/pci/*/*acpi* +F: drivers/pci/*/*/*acpi* ACPI FAN DRIVER M: Zhang Rui <rui.zhang@intel.com> diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c index 2b00adedc45..0b5ce82d203 100644 --- a/arch/ia64/sn/kernel/io_init.c +++ b/arch/ia64/sn/kernel/io_init.c @@ -268,17 +268,10 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus) bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, controller, &resources); - if (bus == NULL) - goto error_return; /* error, or bus already scanned */ - - bus->sysdata = controller; - - return; - -error_return: - kfree(res); - kfree(controller); - return; + if (bus == NULL) { + kfree(res); + kfree(controller); + } } /* diff --git a/arch/m68k/platform/coldfire/pci.c b/arch/m68k/platform/coldfire/pci.c index 8572246db84..b33f97a13e6 100644 --- a/arch/m68k/platform/coldfire/pci.c +++ b/arch/m68k/platform/coldfire/pci.c @@ -320,7 +320,6 @@ static int __init mcf_pci_init(void) pci_bus_size_bridges(rootbus); pci_bus_assign_resources(rootbus); pci_enable_bridges(rootbus); - pci_bus_add_devices(rootbus); return 0; } diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c index 2a67e9baa59..6b0ba5854d9 100644 --- a/arch/powerpc/kernel/pci_of_scan.c +++ b/arch/powerpc/kernel/pci_of_scan.c @@ -128,7 +128,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, const char *type; struct pci_slot *slot; - dev = alloc_pci_dev(); + dev = pci_alloc_dev(bus); if (!dev) return NULL; type = of_get_property(node, "device_type", NULL); @@ -137,7 +137,6 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, pr_debug(" create device, devfn: %x, type: %s\n", devfn, type); - dev->bus = bus; dev->dev.of_node = of_node_get(node); dev->dev.parent = bus->bridge; dev->dev.bus = &pci_bus_type; @@ -165,7 +164,7 @@ struct pci_dev *of_create_pci_dev(struct device_node *node, pr_debug(" class: 0x%x\n", dev->class); pr_debug(" revision: 0x%x\n", dev->revision); - dev->current_state = 4; /* unknown power state */ + dev->current_state = PCI_UNKNOWN; /* unknown power state */ dev->error_state = pci_channel_io_normal; dev->dma_mask = 0xffffffff; diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 2031c65fd4e..bc4d3f5d2e5 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -254,7 +254,7 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, const char *type; u32 class; - dev = alloc_pci_dev(); + dev = pci_alloc_dev(bus); if (!dev) return NULL; @@ -281,7 +281,6 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, printk(" create device, devfn: %x, type: %s\n", devfn, type); - dev->bus = bus; dev->sysdata = node; dev->dev.parent = bus->bridge; dev->dev.bus = &pci_bus_type; @@ -327,7 +326,7 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) pci_set_master(dev); - dev->current_state = 4; /* unknown power state */ + dev->current_state = PCI_UNKNOWN; /* unknown power state */ dev->error_state = pci_channel_io_normal; dev->dma_mask = 0xffffffff; diff --git a/arch/unicore32/kernel/pci.c b/arch/unicore32/kernel/pci.c index ef69c0c8282..374a055a8e6 100644 --- a/arch/unicore32/kernel/pci.c +++ b/arch/unicore32/kernel/pci.c @@ -277,11 +277,6 @@ static int __init pci_common_init(void) pci_bus_assign_resources(puv3_bus); } - /* - * Tell drivers about devices found. - */ - pci_bus_add_devices(puv3_bus); - return 0; } subsys_initcall(pci_common_init); diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 3e724256dbe..d641897a1f4 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -324,14 +324,11 @@ setup_resource(struct acpi_resource *acpi_res, void *data) res->start = start; res->end = end; info->res_offset[info->res_num] = addr.translation_offset; + info->res_num++; - if (!pci_use_crs) { + if (!pci_use_crs) dev_printk(KERN_DEBUG, &info->bridge->dev, "host bridge window %pR (ignored)\n", res); - return AE_OK; - } - - info->res_num++; return AE_OK; } diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index fcd7d91cec3..ec9b57d428a 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -449,9 +449,19 @@ static void ghes_do_proc(struct ghes *ghes, pcie_err->validation_bits & CPER_PCIE_VALID_AER_INFO) { unsigned int devfn; int aer_severity; + devfn = PCI_DEVFN(pcie_err->device_id.device, pcie_err->device_id.function); aer_severity = cper_severity_to_aer(sev); + + /* + * If firmware reset the component to contain + * the error, we must reinitialize it before + * use, so treat it as a fatal AER error. + */ + if (gdata->flags & CPER_SEC_RESET) + aer_severity = AER_FATAL; + aer_recover_queue(pcie_err->device_id.segment, pcie_err->device_id.bus, devfn, aer_severity, diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index e427dc516c7..5917839321b 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -65,10 +65,6 @@ static struct acpi_scan_handler pci_root_handler = { .detach = acpi_pci_root_remove, }; -/* Lock to protect both acpi_pci_roots lists */ -static DEFINE_MUTEX(acpi_pci_root_lock); -static LIST_HEAD(acpi_pci_roots); - static DEFINE_MUTEX(osc_lock); /** @@ -100,13 +96,12 @@ get_root_bridge_busnr_callback(struct acpi_resource *resource, void *data) { struct resource *res = data; struct acpi_resource_address64 address; + acpi_status status; - if (resource->type != ACPI_RESOURCE_TYPE_ADDRESS16 && - resource->type != ACPI_RESOURCE_TYPE_ADDRESS32 && - resource->type != ACPI_RESOURCE_TYPE_ADDRESS64) + status = acpi_resource_to_address64(resource, &address); + if (ACPI_FAILURE(status)) return AE_OK; - acpi_resource_to_address64(resource, &address); if ((address.address_length > 0) && (address.resource_type == ACPI_BUS_NUMBER_RANGE)) { res->start = address.minimum; @@ -382,23 +377,24 @@ static int acpi_pci_root_add(struct acpi_device *device, int result; struct acpi_pci_root *root; u32 flags, base_flags; + acpi_handle handle = device->handle; root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL); if (!root) return -ENOMEM; segment = 0; - status = acpi_evaluate_integer(device->handle, METHOD_NAME__SEG, NULL, + status = acpi_evaluate_integer(handle, METHOD_NAME__SEG, NULL, &segment); if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { - printk(KERN_ERR PREFIX "can't evaluate _SEG\n"); + dev_err(&device->dev, "can't evaluate _SEG\n"); result = -ENODEV; goto end; } /* Check _CRS first, then _BBN. If no _BBN, default to zero. */ root->secondary.flags = IORESOURCE_BUS; - status = try_get_root_bridge_busnr(device->handle, &root->secondary); + status = try_get_root_bridge_busnr(handle, &root->secondary); if (ACPI_FAILURE(status)) { /* * We need both the start and end of the downstream bus range @@ -407,33 +403,32 @@ static int acpi_pci_root_add(struct acpi_device *device, * can do is assume [_BBN-0xFF] or [0-0xFF]. */ root->secondary.end = 0xFF; - printk(KERN_WARNING FW_BUG PREFIX - "no secondary bus range in _CRS\n"); - status = acpi_evaluate_integer(device->handle, METHOD_NAME__BBN, + dev_warn(&device->dev, + FW_BUG "no secondary bus range in _CRS\n"); + status = acpi_evaluate_integer(handle, METHOD_NAME__BBN, NULL, &bus); if (ACPI_SUCCESS(status)) root->secondary.start = bus; else if (status == AE_NOT_FOUND) root->secondary.start = 0; else { - printk(KERN_ERR PREFIX "can't evaluate _BBN\n"); + dev_err(&device->dev, "can't evaluate _BBN\n"); result = -ENODEV; goto end; } } - INIT_LIST_HEAD(&root->node); root->device = device; root->segment = segment & 0xFFFF; strcpy(acpi_device_name(device), ACPI_PCI_ROOT_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS); device->driver_data = root; - printk(KERN_INFO PREFIX "%s [%s] (domain %04x %pR)\n", + pr_info(PREFIX "%s [%s] (domain %04x %pR)\n", acpi_device_name(device), acpi_device_bid(device), root->segment, &root->secondary); - root->mcfg_addr = acpi_pci_root_get_mcfg_addr(device->handle); + root->mcfg_addr = acpi_pci_root_get_mcfg_addr(handle); /* * All supported architectures that use ACPI have support for @@ -446,10 +441,6 @@ static int acpi_pci_root_add(struct acpi_device *device, * TBD: Need PCI interface for enumeration/configuration of roots. */ - mutex_lock(&acpi_pci_root_lock); - list_add_tail(&root->node, &acpi_pci_roots); - mutex_unlock(&acpi_pci_root_lock); - /* * Scan the Root Bridge * -------------------- @@ -459,11 +450,11 @@ static int acpi_pci_root_add(struct acpi_device *device, */ root->bus = pci_acpi_scan_root(root); if (!root->bus) { - printk(KERN_ERR PREFIX - "Bus %04x:%02x not present in PCI namespace\n", - root->segment, (unsigned int)root->secondary.start); + dev_err(&device->dev, + "Bus %04x:%02x not present in PCI namespace\n", + root->segment, (unsigned int)root->secondary.start); result = -ENODEV; - goto out_del_root; + goto end; } /* Indicate support for various _OSC capabilities. */ @@ -502,7 +493,7 @@ static int acpi_pci_root_add(struct acpi_device *device, dev_info(&device->dev, "Requesting ACPI _OSC control (0x%02x)\n", flags); - status = acpi_pci_osc_control_set(device->handle, &flags, + status = acpi_pci_osc_control_set(handle, &flags, OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL); if (ACPI_SUCCESS(status)) { dev_info(&device->dev, @@ -519,8 +510,8 @@ static int acpi_pci_root_add(struct acpi_device *device, "ACPI _OSC request failed (%s), " "returned control mask: 0x%02x\n", acpi_format_exception(status), flags); - pr_info("ACPI _OSC control for PCIe not granted, " - "disabling ASPM\n"); + dev_info(&device->dev, + "ACPI _OSC control for PCIe not granted, disabling ASPM\n"); pcie_no_aspm(); } } else { @@ -536,20 +527,14 @@ static int acpi_pci_root_add(struct acpi_device *device, if (system_state != SYSTEM_BOOTING) { pcibios_resource_survey_bus(root->bus); pci_assign_unassigned_bus_resources(root->bus); - } - /* need to after hot-added ioapic is registered */ - if (system_state != SYSTEM_BOOTING) + /* need to after hot-added ioapic is registered */ pci_enable_bridges(root->bus); + } pci_bus_add_devices(root->bus); return 1; -out_del_root: - mutex_lock(&acpi_pci_root_lock); - list_del(&root->node); - mutex_unlock(&acpi_pci_root_lock); - end: kfree(root); return result; @@ -566,9 +551,6 @@ static void acpi_pci_root_remove(struct acpi_device *device) pci_remove_root_bus(root->bus); - mutex_lock(&acpi_pci_root_lock); - list_del(&root->node); - mutex_unlock(&acpi_pci_root_lock); kfree(root); } @@ -588,12 +570,13 @@ static void handle_root_bridge_insertion(acpi_handle handle) struct acpi_device *device; if (!acpi_bus_get_device(handle, &device)) { - printk(KERN_DEBUG "acpi device exists...\n"); + dev_printk(KERN_DEBUG, &device->dev, + "acpi device already exists; ignoring notify\n"); return; } if (acpi_bus_scan(handle)) - printk(KERN_ERR "cannot add bridge to acpi list\n"); + acpi_handle_err(handle, "cannot add bridge to acpi list\n"); } static void handle_root_bridge_removal(struct acpi_device *device) @@ -622,7 +605,6 @@ static void handle_root_bridge_removal(struct acpi_device *device) static void _handle_hotplug_event_root(struct work_struct *work) { struct acpi_pci_root *root; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER }; struct acpi_hp_work *hp_work; acpi_handle handle; u32 type; @@ -634,13 +616,12 @@ static void _handle_hotplug_event_root(struct work_struct *work) acpi_scan_lock_acquire(); root = acpi_pci_find_root(handle); - acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer); switch (type) { case ACPI_NOTIFY_BUS_CHECK: /* bus enumerate */ - printk(KERN_DEBUG "%s: Bus check notify on %s\n", __func__, - (char *)buffer.pointer); + acpi_handle_printk(KERN_DEBUG, handle, + "Bus check notify on %s\n", __func__); if (root) acpiphp_check_host_bridge(handle); else @@ -650,28 +631,28 @@ static void _handle_hotplug_event_root(struct work_struct *work) case ACPI_NOTIFY_DEVICE_CHECK: /* device check */ - printk(KERN_DEBUG "%s: Device check notify on %s\n", __func__, - (char *)buffer.pointer); + acpi_handle_printk(KERN_DEBUG, handle, + "Device check notify on %s\n", __func__); if (!root) handle_root_bridge_insertion(handle); break; case ACPI_NOTIFY_EJECT_REQUEST: /* request device eject */ - printk(KERN_DEBUG "%s: Device eject notify on %s\n", __func__, - (char *)buffer.pointer); + acpi_handle_printk(KERN_DEBUG, handle, + "Device eject notify on %s\n", __func__); if (root) handle_root_bridge_removal(root->device); break; default: - printk(KERN_WARNING "notify_handler: unknown event type 0x%x for %s\n", - type, (char *)buffer.pointer); + acpi_handle_warn(handle, + "notify_handler: unknown event type 0x%x\n", + type); break; } acpi_scan_lock_release(); kfree(hp_work); /* allocated in handle_hotplug_event_bridge */ - kfree(buffer.pointer); } static void handle_hotplug_event_root(acpi_handle handle, u32 type, @@ -685,9 +666,6 @@ static acpi_status __init find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv) { acpi_status status; - char objname[64]; - struct acpi_buffer buffer = { .length = sizeof(objname), - .pointer = objname }; int *count = (int *)context; if (!acpi_is_root_bridge(handle)) @@ -695,16 +673,15 @@ find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv) (*count)++; - acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer); - status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, handle_hotplug_event_root, NULL); if (ACPI_FAILURE(status)) - printk(KERN_DEBUG "acpi root: %s notify handler is not installed, exit status: %u\n", - objname, (unsigned int)status); + acpi_handle_printk(KERN_DEBUG, handle, + "notify handler is not installed, exit status: %u\n", + (unsigned int)status); else - printk(KERN_DEBUG "acpi root: %s notify handler is installed\n", - objname); + acpi_handle_printk(KERN_DEBUG, handle, + "notify handler is installed\n"); return AE_OK; } diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 2b50dfdf1cf..fe1a889c691 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -310,6 +310,7 @@ static const struct pci_device_id ahci_pci_tbl[] = { /* AMD */ { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */ + { PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */ /* AMD is using RAID class only for ahci controllers */ { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci }, diff --git a/drivers/char/agp/alpha-agp.c b/drivers/char/agp/alpha-agp.c index dd84af4d4f7..199b8e99f7d 100644 --- a/drivers/char/agp/alpha-agp.c +++ b/drivers/char/agp/alpha-agp.c @@ -174,7 +174,7 @@ alpha_core_agp_setup(void) /* * Build a fake pci_dev struct */ - pdev = alloc_pci_dev(); + pdev = pci_alloc_dev(NULL); if (!pdev) return -ENOMEM; pdev->vendor = 0xffff; diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c index 94821ab01c6..bf5d2477cb7 100644 --- a/drivers/char/agp/parisc-agp.c +++ b/drivers/char/agp/parisc-agp.c @@ -333,7 +333,7 @@ parisc_agp_setup(void __iomem *ioc_hpa, void __iomem *lba_hpa) struct agp_bridge_data *bridge; int error = 0; - fake_bridge_dev = alloc_pci_dev(); + fake_bridge_dev = pci_alloc_dev(NULL); if (!fake_bridge_dev) { error = -ENOMEM; goto fail; diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 73e2e7db2b6..527503617ee 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -150,6 +150,7 @@ config I2C_PIIX4 ATI SB700/SP5100 ATI SB800 AMD Hudson-2 + AMD CZ Serverworks OSB4 Serverworks CSB5 Serverworks CSB6 diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c index 39ab78c1a02..d05ad590af2 100644 --- a/drivers/i2c/busses/i2c-piix4.c +++ b/drivers/i2c/busses/i2c-piix4.c @@ -22,7 +22,7 @@ Intel PIIX4, 440MX Serverworks OSB4, CSB5, CSB6, HT-1000, HT-1100 ATI IXP200, IXP300, IXP400, SB600, SB700/SP5100, SB800 - AMD Hudson-2 + AMD Hudson-2, CZ SMSC Victory66 Note: we assume there can only be one device, with one or more @@ -522,6 +522,7 @@ static DEFINE_PCI_DEVICE_TABLE(piix4_ids) = { { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS) }, { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS) }, { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SMBUS) }, + { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x790b) }, { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4) }, { PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index dcfea4e39be..39f81aeefcd 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -51,26 +51,27 @@ static void irq_remapping_disable_io_apic(void) static int do_setup_msi_irqs(struct pci_dev *dev, int nvec) { - int node, ret, sub_handle, index = 0; + int node, ret, sub_handle, nvec_pow2, index = 0; unsigned int irq; struct msi_desc *msidesc; - nvec = __roundup_pow_of_two(nvec); - WARN_ON(!list_is_singular(&dev->msi_list)); msidesc = list_entry(dev->msi_list.next, struct msi_desc, list); WARN_ON(msidesc->irq); WARN_ON(msidesc->msi_attrib.multiple); + WARN_ON(msidesc->nvec_used); node = dev_to_node(&dev->dev); irq = __create_irqs(get_nr_irqs_gsi(), nvec, node); if (irq == 0) return -ENOSPC; - msidesc->msi_attrib.multiple = ilog2(nvec); + nvec_pow2 = __roundup_pow_of_two(nvec); + msidesc->nvec_used = nvec; + msidesc->msi_attrib.multiple = ilog2(nvec_pow2); for (sub_handle = 0; sub_handle < nvec; sub_handle++) { if (!sub_handle) { - index = msi_alloc_remapped_irq(dev, irq, nvec); + index = msi_alloc_remapped_irq(dev, irq, nvec_pow2); if (index < 0) { ret = index; goto error; @@ -95,6 +96,7 @@ error: * IRQs from tearing down again in default_teardown_msi_irqs() */ msidesc->irq = 0; + msidesc->nvec_used = 0; msidesc->msi_attrib.multiple = 0; return ret; diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c index 32e66a6f12d..b1ff02ab4f1 100644 --- a/drivers/pci/bus.c +++ b/drivers/pci/bus.c @@ -283,6 +283,21 @@ void pci_walk_bus(struct pci_bus *top, int (*cb)(struct pci_dev *, void *), } EXPORT_SYMBOL_GPL(pci_walk_bus); +struct pci_bus *pci_bus_get(struct pci_bus *bus) +{ + if (bus) + get_device(&bus->dev); + return bus; +} +EXPORT_SYMBOL(pci_bus_get); + +void pci_bus_put(struct pci_bus *bus) +{ + if (bus) + put_device(&bus->dev); +} +EXPORT_SYMBOL(pci_bus_put); + EXPORT_SYMBOL(pci_bus_alloc_resource); EXPORT_SYMBOL_GPL(pci_bus_add_device); EXPORT_SYMBOL(pci_bus_add_devices); diff --git a/drivers/pci/ioapic.c b/drivers/pci/ioapic.c index 3c6bbdd059a..1b90579b233 100644 --- a/drivers/pci/ioapic.c +++ b/drivers/pci/ioapic.c @@ -113,17 +113,6 @@ static struct pci_driver ioapic_driver = { .remove = ioapic_remove, }; -static int __init ioapic_init(void) -{ - return pci_register_driver(&ioapic_driver); -} - -static void __exit ioapic_exit(void) -{ - pci_unregister_driver(&ioapic_driver); -} - -module_init(ioapic_init); -module_exit(ioapic_exit); +module_pci_driver(ioapic_driver); MODULE_LICENSE("GPL"); diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index c93071d428f..de8ffacf9c9 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -47,51 +47,43 @@ static struct pci_bus *virtfn_add_bus(struct pci_bus *bus, int busnr) return NULL; pci_bus_insert_busn_res(child, busnr, busnr); - bus->is_added = 1; return child; } -static void virtfn_remove_bus(struct pci_bus *bus, int busnr) +static void virtfn_remove_bus(struct pci_bus *physbus, struct pci_bus *virtbus) { - struct pci_bus *child; - - if (bus->number == busnr) - return; - - child = pci_find_bus(pci_domain_nr(bus), busnr); - BUG_ON(!child); - - if (list_empty(&child->devices)) - pci_remove_bus(child); + if (physbus != virtbus && list_empty(&virtbus->devices)) + pci_remove_bus(virtbus); } static int virtfn_add(struct pci_dev *dev, int id, int reset) { int i; - int rc; + int rc = -ENOMEM; u64 size; char buf[VIRTFN_ID_LEN]; struct pci_dev *virtfn; struct resource *res; struct pci_sriov *iov = dev->sriov; + struct pci_bus *bus; - virtfn = alloc_pci_dev(); + mutex_lock(&iov->dev->sriov->lock); + bus = virtfn_add_bus(dev->bus, virtfn_bus(dev, id)); + if (!bus) + goto failed; + + virtfn = pci_alloc_dev(bus); if (!virtfn) - return -ENOMEM; + goto failed0; - mutex_lock(&iov->dev->sriov->lock); - virtfn->bus = virtfn_add_bus(dev->bus, virtfn_bus(dev, id)); - if (!virtfn->bus) { - kfree(virtfn); - mutex_unlock(&iov->dev->sriov->lock); - return -ENOMEM; - } virtfn->devfn = virtfn_devfn(dev, id); virtfn->vendor = dev->vendor; pci_read_config_word(dev, iov->pos + PCI_SRIOV_VF_DID, &virtfn->device); pci_setup_device(virtfn); virtfn->dev.parent = dev->dev.parent; + virtfn->physfn = pci_dev_get(dev); + virtfn->is_virtfn = 1; for (i = 0; i < PCI_SRIOV_NUM_BARS; i++) { res = dev->resource + PCI_IOV_RESOURCES + i; @@ -113,9 +105,6 @@ static int virtfn_add(struct pci_dev *dev, int id, int reset) pci_device_add(virtfn, virtfn->bus); mutex_unlock(&iov->dev->sriov->lock); - virtfn->physfn = pci_dev_get(dev); - virtfn->is_virtfn = 1; - rc = pci_bus_add_device(virtfn); sprintf(buf, "virtfn%u", id); rc = sysfs_create_link(&dev->dev.kobj, &virtfn->dev.kobj, buf); @@ -135,7 +124,9 @@ failed1: pci_dev_put(dev); mutex_lock(&iov->dev->sriov->lock); pci_stop_and_remove_bus_device(virtfn); - virtfn_remove_bus(dev->bus, virtfn_bus(dev, id)); +failed0: + virtfn_remove_bus(dev->bus, bus); +failed: mutex_unlock(&iov->dev->sriov->lock); return rc; @@ -144,20 +135,15 @@ failed1: static void virtfn_remove(struct pci_dev *dev, int id, int reset) { char buf[VIRTFN_ID_LEN]; - struct pci_bus *bus; struct pci_dev *virtfn; struct pci_sriov *iov = dev->sriov; - bus = pci_find_bus(pci_domain_nr(dev->bus), virtfn_bus(dev, id)); - if (!bus) - return; - - virtfn = pci_get_slot(bus, virtfn_devfn(dev, id)); + virtfn = pci_get_domain_bus_and_slot(pci_domain_nr(dev->bus), + virtfn_bus(dev, id), + virtfn_devfn(dev, id)); if (!virtfn) return; - pci_dev_put(virtfn); - if (reset) { device_release_driver(&virtfn->dev); __pci_reset_function(virtfn); @@ -175,9 +161,11 @@ static void virtfn_remove(struct pci_dev *dev, int id, int reset) mutex_lock(&iov->dev->sriov->lock); pci_stop_and_remove_bus_device(virtfn); - virtfn_remove_bus(dev->bus, virtfn_bus(dev, id)); + virtfn_remove_bus(dev->bus, virtfn->bus); mutex_unlock(&iov->dev->sriov->lock); + /* balance pci_get_domain_bus_and_slot() */ + pci_dev_put(virtfn); pci_dev_put(dev); } @@ -334,13 +322,14 @@ static int sriov_enable(struct pci_dev *dev, int nr_virtfn) if (!pdev) return -ENODEV; - pci_dev_put(pdev); - - if (!pdev->is_physfn) + if (!pdev->is_physfn) { + pci_dev_put(pdev); return -ENODEV; + } rc = sysfs_create_link(&dev->dev.kobj, &pdev->dev.kobj, "dep_link"); + pci_dev_put(pdev); if (rc) return rc; } diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 2c1075213be..aca7578b05e 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -81,7 +81,10 @@ void default_teardown_msi_irqs(struct pci_dev *dev) int i, nvec; if (entry->irq == 0) continue; - nvec = 1 << entry->msi_attrib.multiple; + if (entry->nvec_used) + nvec = entry->nvec_used; + else + nvec = 1 << entry->msi_attrib.multiple; for (i = 0; i < nvec; i++) arch_teardown_msi_irq(entry->irq + i); } @@ -336,7 +339,10 @@ static void free_msi_irqs(struct pci_dev *dev) int i, nvec; if (!entry->irq) continue; - nvec = 1 << entry->msi_attrib.multiple; + if (entry->nvec_used) + nvec = entry->nvec_used; + else + nvec = 1 << entry->msi_attrib.multiple; #ifdef CONFIG_GENERIC_HARDIRQS for (i = 0; i < nvec; i++) BUG_ON(irq_has_action(entry->irq + i)); diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index e4b1fb2c0f5..dbdc5f7e2b2 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -186,8 +186,8 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) [PCI_D0] = ACPI_STATE_D0, [PCI_D1] = ACPI_STATE_D1, [PCI_D2] = ACPI_STATE_D2, - [PCI_D3hot] = ACPI_STATE_D3, - [PCI_D3cold] = ACPI_STATE_D3 + [PCI_D3hot] = ACPI_STATE_D3_COLD, + [PCI_D3cold] = ACPI_STATE_D3_COLD, }; int error = -EINVAL; @@ -211,7 +211,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state) if (!error) dev_info(&dev->dev, "power state changed by ACPI to %s\n", - pci_power_name(state)); + acpi_power_state_string(state_conv[state])); return error; } @@ -376,12 +376,12 @@ static int __init acpi_pci_init(void) int ret; if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_MSI) { - printk(KERN_INFO"ACPI FADT declares the system doesn't support MSI, so disable it\n"); + pr_info("ACPI FADT declares the system doesn't support MSI, so disable it\n"); pci_no_msi(); } if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) { - printk(KERN_INFO"ACPI FADT declares the system doesn't support PCIe ASPM, so disable it\n"); + pr_info("ACPI FADT declares the system doesn't support PCIe ASPM, so disable it\n"); pcie_no_aspm(); } diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 5b4a9d9cd20..c0dbe1f6136 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -66,7 +66,7 @@ static ssize_t broken_parity_status_store(struct device *dev, struct pci_dev *pdev = to_pci_dev(dev); unsigned long val; - if (strict_strtoul(buf, 0, &val) < 0) + if (kstrtoul(buf, 0, &val) < 0) return -EINVAL; pdev->broken_parity_status = !!val; @@ -188,7 +188,7 @@ static ssize_t is_enabled_store(struct device *dev, { struct pci_dev *pdev = to_pci_dev(dev); unsigned long val; - ssize_t result = strict_strtoul(buf, 0, &val); + ssize_t result = kstrtoul(buf, 0, &val); if (result < 0) return result; @@ -259,7 +259,7 @@ msi_bus_store(struct device *dev, struct device_attribute *attr, struct pci_dev *pdev = to_pci_dev(dev); unsigned long val; - if (strict_strtoul(buf, 0, &val) < 0) + if (kstrtoul(buf, 0, &val) < 0) return -EINVAL; /* bad things may happen if the no_msi flag is changed @@ -291,7 +291,7 @@ static ssize_t bus_rescan_store(struct bus_type *bus, const char *buf, unsigned long val; struct pci_bus *b = NULL; - if (strict_strtoul(buf, 0, &val) < 0) + if (kstrtoul(buf, 0, &val) < 0) return -EINVAL; if (val) { @@ -315,7 +315,7 @@ dev_rescan_store(struct device *dev, struct device_attribute *attr, unsigned long val; struct pci_dev *pdev = to_pci_dev(dev); - if (strict_strtoul(buf, 0, &val) < 0) + if (kstrtoul(buf, 0, &val) < 0) return -EINVAL; if (val) { @@ -325,6 +325,8 @@ dev_rescan_store(struct device *dev, struct device_attribute *attr, } return count; } +struct device_attribute dev_rescan_attr = __ATTR(rescan, (S_IWUSR|S_IWGRP), + NULL, dev_rescan_store); static void remove_callback(struct device *dev) { @@ -342,7 +344,7 @@ remove_store(struct device *dev, struct device_attribute *dummy, int ret = 0; unsigned long val; - if (strict_strtoul(buf, 0, &val) < 0) + if (kstrtoul(buf, 0, &val) < 0) return -EINVAL; /* An attribute cannot be unregistered by one of its own methods, @@ -354,6 +356,8 @@ remove_store(struct device *dev, struct device_attribute *dummy, count = ret; return count; } +struct device_attribute dev_remove_attr = __ATTR(remove, (S_IWUSR|S_IWGRP), + NULL, remove_store); static ssize_t dev_bus_rescan_store(struct device *dev, struct device_attribute *attr, @@ -362,7 +366,7 @@ dev_bus_rescan_store(struct device *dev, struct device_attribute *attr, unsigned long val; struct pci_bus *bus = to_pci_bus(dev); - if (strict_strtoul(buf, 0, &val) < 0) + if (kstrtoul(buf, 0, &val) < 0) return -EINVAL; if (val) { @@ -384,7 +388,7 @@ static ssize_t d3cold_allowed_store(struct device *dev, struct pci_dev *pdev = to_pci_dev(dev); unsigned long val; - if (strict_strtoul(buf, 0, &val) < 0) + if (kstrtoul(buf, 0, &val) < 0) return -EINVAL; pdev->d3cold_allowed = !!val; @@ -504,8 +508,6 @@ struct device_attribute pci_dev_attrs[] = { __ATTR(broken_parity_status,(S_IRUGO|S_IWUSR), broken_parity_status_show,broken_parity_status_store), __ATTR(msi_bus, 0644, msi_bus_show, msi_bus_store), - __ATTR(remove, (S_IWUSR|S_IWGRP), NULL, remove_store), - __ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, dev_rescan_store), #if defined(CONFIG_PM_RUNTIME) && defined(CONFIG_ACPI) __ATTR(d3cold_allowed, 0644, d3cold_allowed_show, d3cold_allowed_store), #endif @@ -1236,7 +1238,7 @@ static ssize_t reset_store(struct device *dev, { struct pci_dev *pdev = to_pci_dev(dev); unsigned long val; - ssize_t result = strict_strtoul(buf, 0, &val); + ssize_t result = kstrtoul(buf, 0, &val); if (result < 0) return result; @@ -1463,6 +1465,29 @@ static umode_t pci_dev_attrs_are_visible(struct kobject *kobj, return a->mode; } +static struct attribute *pci_dev_hp_attrs[] = { + &dev_remove_attr.attr, + &dev_rescan_attr.attr, + NULL, +}; + +static umode_t pci_dev_hp_attrs_are_visible(struct kobject *kobj, + struct attribute *a, int n) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct pci_dev *pdev = to_pci_dev(dev); + + if (pdev->is_virtfn) + return 0; + + return a->mode; +} + +static struct attribute_group pci_dev_hp_attr_group = { + .attrs = pci_dev_hp_attrs, + .is_visible = pci_dev_hp_attrs_are_visible, +}; + #ifdef CONFIG_PCI_IOV static struct attribute *sriov_dev_attrs[] = { &sriov_totalvfs_attr.attr, @@ -1494,6 +1519,7 @@ static struct attribute_group pci_dev_attr_group = { static const struct attribute_group *pci_dev_attr_groups[] = { &pci_dev_attr_group, + &pci_dev_hp_attr_group, #ifdef CONFIG_PCI_IOV &sriov_dev_attr_group, #endif diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 95057a925d8..e37fea6e178 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -805,7 +805,7 @@ pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state) { pci_power_t ret; - if (!pci_find_capability(dev, PCI_CAP_ID_PM)) + if (!dev->pm_cap) return PCI_D0; ret = platform_pci_choose_state(dev); @@ -2431,7 +2431,7 @@ bool pci_acs_path_enabled(struct pci_dev *start, /** * pci_swizzle_interrupt_pin - swizzle INTx for device behind bridge * @dev: the PCI device - * @pin: the INTx pin (1=INTA, 2=INTB, 3=INTD, 4=INTD) + * @pin: the INTx pin (1=INTA, 2=INTB, 3=INTC, 4=INTD) * * Perform INTx swizzling for a device behind one level of bridge. This is * required by section 9.1 of the PCI-to-PCI bridge specification for devices diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h index d12c77cd699..90ea3e88041 100644 --- a/drivers/pci/pcie/aer/aerdrv.h +++ b/drivers/pci/pcie/aer/aerdrv.h @@ -13,10 +13,6 @@ #include <linux/aer.h> #include <linux/interrupt.h> -#define AER_NONFATAL 0 -#define AER_FATAL 1 -#define AER_CORRECTABLE 2 - #define SYSTEM_ERROR_INTR_ON_MESG_MASK (PCI_EXP_RTCTL_SECEE| \ PCI_EXP_RTCTL_SENFEE| \ PCI_EXP_RTCTL_SEFEE) diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c index 5194a7d4173..cf611ab2193 100644 --- a/drivers/pci/pcie/aer/aerdrv_acpi.c +++ b/drivers/pci/pcie/aer/aerdrv_acpi.c @@ -29,6 +29,22 @@ static inline int hest_match_pci(struct acpi_hest_aer_common *p, p->function == PCI_FUNC(pci->devfn)); } +static inline bool hest_match_type(struct acpi_hest_header *hest_hdr, + struct pci_dev *dev) +{ + u16 hest_type = hest_hdr->type; + u8 pcie_type = pci_pcie_type(dev); + + if ((hest_type == ACPI_HEST_TYPE_AER_ROOT_PORT && + pcie_type == PCI_EXP_TYPE_ROOT_PORT) || + (hest_type == ACPI_HEST_TYPE_AER_ENDPOINT && + pcie_type == PCI_EXP_TYPE_ENDPOINT) || + (hest_type == ACPI_HEST_TYPE_AER_BRIDGE && + (dev->class >> 16) == PCI_BASE_CLASS_BRIDGE)) + return true; + return false; +} + struct aer_hest_parse_info { struct pci_dev *pci_dev; int firmware_first; @@ -38,34 +54,16 @@ static int aer_hest_parse(struct acpi_hest_header *hest_hdr, void *data) { struct aer_hest_parse_info *info = data; struct acpi_hest_aer_common *p; - u8 pcie_type = 0; - u8 bridge = 0; - int ff = 0; - - switch (hest_hdr->type) { - case ACPI_HEST_TYPE_AER_ROOT_PORT: - pcie_type = PCI_EXP_TYPE_ROOT_PORT; - break; - case ACPI_HEST_TYPE_AER_ENDPOINT: - pcie_type = PCI_EXP_TYPE_ENDPOINT; - break; - case ACPI_HEST_TYPE_AER_BRIDGE: - if ((info->pci_dev->class >> 16) == PCI_BASE_CLASS_BRIDGE) - bridge = 1; - break; - default: - return 0; - } + int ff; p = (struct acpi_hest_aer_common *)(hest_hdr + 1); + ff = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST); if (p->flags & ACPI_HEST_GLOBAL) { - if ((pci_is_pcie(info->pci_dev) && - pci_pcie_type(info->pci_dev) == pcie_type) || bridge) - ff = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST); + if (hest_match_type(hest_hdr, info->pci_dev)) + info->firmware_first = ff; } else if (hest_match_pci(p, info->pci_dev)) - ff = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST); - info->firmware_first = ff; + info->firmware_first = ff; return 0; } @@ -89,6 +87,9 @@ static void aer_set_firmware_first(struct pci_dev *pci_dev) int pcie_aer_get_firmware_first(struct pci_dev *dev) { + if (!pci_is_pcie(dev)) + return 0; + if (!dev->__aer_firmware_first_valid) aer_set_firmware_first(dev); return dev->__aer_firmware_first; diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c index 0f4554e48cc..8b68ae59b7b 100644 --- a/drivers/pci/pcie/aer/aerdrv_core.c +++ b/drivers/pci/pcie/aer/aerdrv_core.c @@ -400,16 +400,16 @@ void aer_do_secondary_bus_reset(struct pci_dev *dev) } /** - * default_downstream_reset_link - default reset function for Downstream Port - * @dev: pointer to downstream port's pci_dev data structure + * default_reset_link - default reset function + * @dev: pointer to pci_dev data structure * - * Invoked when performing link reset at Downstream Port w/ no aer driver. + * Invoked when performing link reset on a Downstream Port or a + * Root Port with no aer driver. */ -static pci_ers_result_t default_downstream_reset_link(struct pci_dev *dev) +static pci_ers_result_t default_reset_link(struct pci_dev *dev) { aer_do_secondary_bus_reset(dev); - dev_printk(KERN_DEBUG, &dev->dev, - "Downstream Port link has been reset\n"); + dev_printk(KERN_DEBUG, &dev->dev, "downstream link has been reset\n"); return PCI_ERS_RESULT_RECOVERED; } @@ -458,8 +458,9 @@ static pci_ers_result_t reset_link(struct pci_dev *dev) if (driver && driver->reset_link) { status = driver->reset_link(udev); - } else if (pci_pcie_type(udev) == PCI_EXP_TYPE_DOWNSTREAM) { - status = default_downstream_reset_link(udev); + } else if (pci_pcie_type(udev) == PCI_EXP_TYPE_DOWNSTREAM || + pci_pcie_type(udev) == PCI_EXP_TYPE_ROOT_PORT) { + status = default_reset_link(udev); } else { dev_printk(KERN_DEBUG, &dev->dev, "no link-reset support at upstream device %s\n", diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index d320df6375a..403a44374ed 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -714,19 +714,12 @@ void pcie_aspm_powersave_config_link(struct pci_dev *pdev) up_read(&pci_bus_sem); } -/* - * pci_disable_link_state - disable pci device's link state, so the link will - * never enter specific states - */ static void __pci_disable_link_state(struct pci_dev *pdev, int state, bool sem, bool force) { struct pci_dev *parent = pdev->bus->self; struct pcie_link_state *link; - if (aspm_disabled && !force) - return; - if (!pci_is_pcie(pdev)) return; @@ -736,6 +729,19 @@ static void __pci_disable_link_state(struct pci_dev *pdev, int state, bool sem, if (!parent || !parent->link_state) return; + /* + * A driver requested that ASPM be disabled on this device, but + * if we don't have permission to manage ASPM (e.g., on ACPI + * systems we have to observe the FADT ACPI_FADT_NO_ASPM bit and + * the _OSC method), we can't honor that request. Windows has + * a similar mechanism using "PciASPMOptOut", which is also + * ignored in this situation. + */ + if (aspm_disabled && !force) { + dev_warn(&pdev->dev, "can't disable ASPM; OS doesn't have ASPM control\n"); + return; + } + if (sem) down_read(&pci_bus_sem); mutex_lock(&aspm_lock); @@ -761,6 +767,15 @@ void pci_disable_link_state_locked(struct pci_dev *pdev, int state) } EXPORT_SYMBOL(pci_disable_link_state_locked); +/** + * pci_disable_link_state - Disable device's link state, so the link will + * never enter specific states. Note that if the BIOS didn't grant ASPM + * control to the OS, this does nothing because we can't touch the LNKCTL + * register. + * + * @pdev: PCI device + * @state: ASPM link state to disable + */ void pci_disable_link_state(struct pci_dev *pdev, int state) { __pci_disable_link_state(pdev, state, true, false); diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c index 795db1f9d50..e56e594ce11 100644 --- a/drivers/pci/pcie/pme.c +++ b/drivers/pci/pcie/pme.c @@ -408,7 +408,7 @@ static int pcie_pme_resume(struct pcie_device *srv) /** * pcie_pme_remove - Prepare PCIe PME service device for removal. - * @srv - PCIe service device to resume. + * @srv - PCIe service device to remove. */ static void pcie_pme_remove(struct pcie_device *srv) { diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 58cc0a8a097..46ada5c098e 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -170,7 +170,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, { u32 l, sz, mask; u16 orig_cmd; - struct pci_bus_region region; + struct pci_bus_region region, inverted_region; bool bar_too_big = false, bar_disabled = false; mask = type ? PCI_ROM_ADDRESS_MASK : ~0; @@ -250,12 +250,10 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, pci_write_config_dword(dev, pos + 4, 0); region.start = 0; region.end = sz64; - pcibios_bus_to_resource(dev, res, ®ion); bar_disabled = true; } else { region.start = l64; region.end = l64 + sz64; - pcibios_bus_to_resource(dev, res, ®ion); } } else { sz = pci_size(l, sz, mask); @@ -265,7 +263,28 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type, region.start = l; region.end = l + sz; - pcibios_bus_to_resource(dev, res, ®ion); + } + + pcibios_bus_to_resource(dev, res, ®ion); + pcibios_resource_to_bus(dev, &inverted_region, res); + + /* + * If "A" is a BAR value (a bus address), "bus_to_resource(A)" is + * the corresponding resource address (the physical address used by + * the CPU. Converting that resource address back to a bus address + * should yield the original BAR value: + * + * resource_to_bus(bus_to_resource(A)) == A + * + * If it doesn't, CPU accesses to "bus_to_resource(A)" will not + * be claimed by the device. + */ + if (inverted_region.start != region.start) { + dev_info(&dev->dev, "reg 0x%x: initial BAR value %pa invalid; forcing reassignment\n", + pos, ®ion.start); + res->flags |= IORESOURCE_UNSET; + res->end -= res->start; + res->start = 0; } goto out; @@ -278,9 +297,9 @@ out: pci_write_config_word(dev, PCI_COMMAND, orig_cmd); if (bar_too_big) - dev_err(&dev->dev, "reg %x: can't handle 64-bit BAR\n", pos); + dev_err(&dev->dev, "reg 0x%x: can't handle 64-bit BAR\n", pos); if (res->flags && !bar_disabled) - dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", pos, res); + dev_printk(KERN_DEBUG, &dev->dev, "reg 0x%x: %pR\n", pos, res); return (res->flags & IORESOURCE_MEM_64) ? 1 : 0; } @@ -451,33 +470,46 @@ void pci_read_bridge_bases(struct pci_bus *child) } } -static struct pci_bus * pci_alloc_bus(void) +static struct pci_bus *pci_alloc_bus(void) { struct pci_bus *b; b = kzalloc(sizeof(*b), GFP_KERNEL); - if (b) { - INIT_LIST_HEAD(&b->node); - INIT_LIST_HEAD(&b->children); - INIT_LIST_HEAD(&b->devices); - INIT_LIST_HEAD(&b->slots); - INIT_LIST_HEAD(&b->resources); - b->max_bus_speed = PCI_SPEED_UNKNOWN; - b->cur_bus_speed = PCI_SPEED_UNKNOWN; - } + if (!b) + return NULL; + + INIT_LIST_HEAD(&b->node); + INIT_LIST_HEAD(&b->children); + INIT_LIST_HEAD(&b->devices); + INIT_LIST_HEAD(&b->slots); + INIT_LIST_HEAD(&b->resources); + b->max_bus_speed = PCI_SPEED_UNKNOWN; + b->cur_bus_speed = PCI_SPEED_UNKNOWN; return b; } +static void pci_release_host_bridge_dev(struct device *dev) +{ + struct pci_host_bridge *bridge = to_pci_host_bridge(dev); + + if (bridge->release_fn) + bridge->release_fn(bridge); + + pci_free_resource_list(&bridge->windows); + + kfree(bridge); +} + static struct pci_host_bridge *pci_alloc_host_bridge(struct pci_bus *b) { struct pci_host_bridge *bridge; bridge = kzalloc(sizeof(*bridge), GFP_KERNEL); - if (bridge) { - INIT_LIST_HEAD(&bridge->windows); - bridge->bus = b; - } + if (!bridge) + return NULL; + INIT_LIST_HEAD(&bridge->windows); + bridge->bus = b; return bridge; } @@ -1133,6 +1165,7 @@ static void pci_release_dev(struct device *dev) pci_release_capabilities(pci_dev); pci_release_of_node(pci_dev); pcibios_release_device(pci_dev); + pci_bus_put(pci_dev->bus); kfree(pci_dev); } @@ -1189,19 +1222,7 @@ int pci_cfg_space_size(struct pci_dev *dev) return PCI_CFG_SPACE_SIZE; } -static void pci_release_bus_bridge_dev(struct device *dev) -{ - struct pci_host_bridge *bridge = to_pci_host_bridge(dev); - - if (bridge->release_fn) - bridge->release_fn(bridge); - - pci_free_resource_list(&bridge->windows); - - kfree(bridge); -} - -struct pci_dev *alloc_pci_dev(void) +struct pci_dev *pci_alloc_dev(struct pci_bus *bus) { struct pci_dev *dev; @@ -1211,9 +1232,16 @@ struct pci_dev *alloc_pci_dev(void) INIT_LIST_HEAD(&dev->bus_list); dev->dev.type = &pci_dev_type; + dev->bus = pci_bus_get(bus); return dev; } +EXPORT_SYMBOL(pci_alloc_dev); + +struct pci_dev *alloc_pci_dev(void) +{ + return pci_alloc_dev(NULL); +} EXPORT_SYMBOL(alloc_pci_dev); bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *l, @@ -1264,11 +1292,10 @@ static struct pci_dev *pci_scan_device(struct pci_bus *bus, int devfn) if (!pci_bus_read_dev_vendor_id(bus, devfn, &l, 60*1000)) return NULL; - dev = alloc_pci_dev(); + dev = pci_alloc_dev(bus); if (!dev) return NULL; - dev->bus = bus; dev->devfn = devfn; dev->vendor = l & 0xffff; dev->device = (l >> 16) & 0xffff; @@ -1276,6 +1303,7 @@ static struct pci_dev *pci_scan_device(struct pci_bus *bus, int devfn) pci_set_of_node(dev); if (pci_setup_device(dev)) { + pci_bus_put(dev->bus); kfree(dev); return NULL; } @@ -1701,15 +1729,19 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus, goto err_out; bridge->dev.parent = parent; - bridge->dev.release = pci_release_bus_bridge_dev; + bridge->dev.release = pci_release_host_bridge_dev; dev_set_name(&bridge->dev, "pci%04x:%02x", pci_domain_nr(b), bus); error = pcibios_root_bridge_prepare(bridge); - if (error) - goto bridge_dev_reg_err; + if (error) { + kfree(bridge); + goto err_out; + } error = device_register(&bridge->dev); - if (error) - goto bridge_dev_reg_err; + if (error) { + put_device(&bridge->dev); + goto err_out; + } b->bridge = get_device(&bridge->dev); device_enable_async_suspend(b->bridge); pci_set_bus_of_node(b); @@ -1765,8 +1797,6 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus, class_dev_reg_err: put_device(&bridge->dev); device_unregister(&bridge->dev); -bridge_dev_reg_err: - kfree(bridge); err_out: kfree(b); return NULL; diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 7d68aeebf56..e85d23044ae 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1022,6 +1022,8 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode); DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode); /* * Serverworks CSB5 IDE does not fully support native mode @@ -1832,7 +1834,6 @@ static void quirk_e100_interrupt(struct pci_dev *dev) u16 command, pmcsr; u8 __iomem *csr; u8 cmd_hi; - int pm; switch (dev->device) { /* PCI IDs taken from drivers/net/e100.c */ @@ -1870,9 +1871,8 @@ static void quirk_e100_interrupt(struct pci_dev *dev) * Check that the device is in the D0 power state. If it's not, * there is no point to look any further. */ - pm = pci_find_capability(dev, PCI_CAP_ID_PM); - if (pm) { - pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr); + if (dev->pm_cap) { + pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr); if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0) return; } @@ -2865,6 +2865,31 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata); DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata); +/* + * Ivytown NTB BAR sizes are misreported by the hardware due to an erratum. To + * work around this, query the size it should be configured to by the device and + * modify the resource end to correspond to this new size. + */ +static void quirk_intel_ntb(struct pci_dev *dev) +{ + int rc; + u8 val; + + rc = pci_read_config_byte(dev, 0x00D0, &val); + if (rc) + return; + + dev->resource[2].end = dev->resource[2].start + ((u64) 1 << val) - 1; + + rc = pci_read_config_byte(dev, 0x00D1, &val); + if (rc) + return; + + dev->resource[4].end = dev->resource[4].start + ((u64) 1 << val) - 1; +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e08, quirk_intel_ntb); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e0d, quirk_intel_ntb); + static ktime_t fixup_debug_start(struct pci_dev *dev, void (*fn)(struct pci_dev *dev)) { diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 846f475f62c..90c95a3385d 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -2026,7 +2026,7 @@ megaraid_abort_and_reset(adapter_t *adapter, Scsi_Cmnd *cmd, int aor) static inline int make_local_pdev(adapter_t *adapter, struct pci_dev **pdev) { - *pdev = alloc_pci_dev(); + *pdev = pci_alloc_dev(NULL); if( *pdev == NULL ) return -1; diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index ca081ace2a1..56e6b68c8d2 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -434,7 +434,6 @@ int register_acpi_bus_type(struct acpi_bus_type *); int unregister_acpi_bus_type(struct acpi_bus_type *); struct acpi_pci_root { - struct list_head node; struct acpi_device * device; struct pci_bus *bus; u16 segment; diff --git a/include/linux/aer.h b/include/linux/aer.h index 737f90ab4b6..4dbaa708153 100644 --- a/include/linux/aer.h +++ b/include/linux/aer.h @@ -7,6 +7,10 @@ #ifndef _AER_H_ #define _AER_H_ +#define AER_NONFATAL 0 +#define AER_FATAL 1 +#define AER_CORRECTABLE 2 + struct aer_header_log_regs { unsigned int dw0; unsigned int dw1; @@ -31,9 +35,9 @@ struct aer_capability_regs { #if defined(CONFIG_PCIEAER) /* pci-e port driver needs this function to enable aer */ -extern int pci_enable_pcie_error_reporting(struct pci_dev *dev); -extern int pci_disable_pcie_error_reporting(struct pci_dev *dev); -extern int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev); +int pci_enable_pcie_error_reporting(struct pci_dev *dev); +int pci_disable_pcie_error_reporting(struct pci_dev *dev); +int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev); #else static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev) { @@ -49,11 +53,11 @@ static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev) } #endif -extern void cper_print_aer(struct pci_dev *dev, - int cper_severity, struct aer_capability_regs *aer); -extern int cper_severity_to_aer(int cper_severity); -extern void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn, - int severity, - struct aer_capability_regs *aer_regs); +void cper_print_aer(struct pci_dev *dev, int cper_severity, + struct aer_capability_regs *aer); +int cper_severity_to_aer(int cper_severity); +void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn, + int severity, + struct aer_capability_regs *aer_regs); #endif //_AER_H_ diff --git a/include/linux/msi.h b/include/linux/msi.h index 20c2d6dd5d2..ee66f3a12fb 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -35,6 +35,7 @@ struct msi_desc { u32 masked; /* mask bits */ unsigned int irq; + unsigned int nvec_used; /* number of messages */ struct list_head list; union { diff --git a/include/linux/pci.h b/include/linux/pci.h index 8f170e9073a..0fd1f1582fa 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -364,7 +364,8 @@ static inline struct pci_dev *pci_physfn(struct pci_dev *dev) return dev; } -struct pci_dev *alloc_pci_dev(void); +struct pci_dev *pci_alloc_dev(struct pci_bus *bus); +struct pci_dev * __deprecated alloc_pci_dev(void); #define to_pci_dev(n) container_of(n, struct pci_dev, dev) #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL) @@ -1018,6 +1019,8 @@ int pci_request_selected_regions_exclusive(struct pci_dev *, int, const char *); void pci_release_selected_regions(struct pci_dev *, int); /* drivers/pci/bus.c */ +struct pci_bus *pci_bus_get(struct pci_bus *bus); +void pci_bus_put(struct pci_bus *bus); void pci_add_resource(struct list_head *resources, struct resource *res); void pci_add_resource_offset(struct list_head *resources, struct resource *res, resource_size_t offset); diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index c1291624846..3bed2e89611 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -556,7 +556,6 @@ #define PCI_DEVICE_ID_AMD_8131_BRIDGE 0x7450 #define PCI_DEVICE_ID_AMD_8131_APIC 0x7451 #define PCI_DEVICE_ID_AMD_8132_BRIDGE 0x7458 -#define PCI_DEVICE_ID_AMD_HUDSON2_SMBUS 0x780b #define PCI_DEVICE_ID_AMD_CS5535_IDE 0x208F #define PCI_DEVICE_ID_AMD_CS5536_ISA 0x2090 #define PCI_DEVICE_ID_AMD_CS5536_FLASH 0x2091 @@ -568,8 +567,9 @@ #define PCI_DEVICE_ID_AMD_CS5536_IDE 0x209A #define PCI_DEVICE_ID_AMD_LX_VIDEO 0x2081 #define PCI_DEVICE_ID_AMD_LX_AES 0x2082 -#define PCI_DEVICE_ID_AMD_HUDSON2_IDE 0x780c #define PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE 0x7800 +#define PCI_DEVICE_ID_AMD_HUDSON2_SMBUS 0x780b +#define PCI_DEVICE_ID_AMD_HUDSON2_IDE 0x780c #define PCI_VENDOR_ID_TRIDENT 0x1023 #define PCI_DEVICE_ID_TRIDENT_4DWAVE_DX 0x2000 @@ -2476,6 +2476,9 @@ #define PCI_VENDOR_ID_ASMEDIA 0x1b21 +#define PCI_VENDOR_ID_CIRCUITCO 0x1cc8 +#define PCI_SUBSYSTEM_ID_CIRCUITCO_MINNOWBOARD 0x0001 + #define PCI_VENDOR_ID_TEKRAM 0x1de1 #define PCI_DEVICE_ID_TEKRAM_DC290 0xdc29 diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index 864e324da80..c3cc01d474b 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -468,7 +468,7 @@ #define PCI_EXP_LNKCAP_ASPMS 0x00000c00 /* ASPM Support */ #define PCI_EXP_LNKCAP_L0SEL 0x00007000 /* L0s Exit Latency */ #define PCI_EXP_LNKCAP_L1EL 0x00038000 /* L1 Exit Latency */ -#define PCI_EXP_LNKCAP_CLKPM 0x00040000 /* L1 Clock Power Management */ +#define PCI_EXP_LNKCAP_CLKPM 0x00040000 /* Clock Power Management */ #define PCI_EXP_LNKCAP_SDERC 0x00080000 /* Surprise Down Error Reporting Capable */ #define PCI_EXP_LNKCAP_DLLLARC 0x00100000 /* Data Link Layer Link Active Reporting Capable */ #define PCI_EXP_LNKCAP_LBNC 0x00200000 /* Link Bandwidth Notification Capability */ |