diff options
46 files changed, 679 insertions, 791 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 766087781ecd..1da946548772 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2262,6 +2262,21 @@ bytes respectively. Such letter suffixes can also be entirely omitted. This sorting is done to get a device order compatible with older (<= 2.4) kernels. nobfsort Don't sort PCI devices into breadth-first order. + pcie_bus_tune_off Disable PCIe MPS (Max Payload Size) + tuning and use the BIOS-configured MPS defaults. + pcie_bus_safe Set every device's MPS to the largest value + supported by all devices below the root complex. + pcie_bus_perf Set device MPS to the largest allowable MPS + based on its parent bus. Also set MRRS (Max + Read Request Size) to the largest supported + value (no larger than the MPS that the device + or bus can support) for best performance. + pcie_bus_peer2peer Set every device's MPS to 128B, which + every device is guaranteed to support. This + configuration allows peer-to-peer DMA between + any pair of devices, possibly at the cost of + reduced performance. This also guarantees + that hot-added devices will work. cbiosize=nn[KMG] The fixed amount of bus space which is reserved for the CardBus bridge's IO window. The default value is 256 bytes. @@ -2283,6 +2298,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. the default. off: Turn ECRC off on: Turn ECRC on. + hpiosize=nn[KMG] The fixed amount of bus space which is + reserved for hotplug bridge's IO window. + Default size is 256 bytes. + hpmemsize=nn[KMG] The fixed amount of bus space which is + reserved for hotplug bridge's memory window. + Default size is 2 megabytes. realloc= Enable/disable reallocating PCI bridge resources if allocations done by BIOS are too small to accommodate resources required by all child diff --git a/arch/frv/mb93090-mb00/pci-frv.h b/arch/frv/mb93090-mb00/pci-frv.h index 089eeba4f3bc..76c4e73d643d 100644 --- a/arch/frv/mb93090-mb00/pci-frv.h +++ b/arch/frv/mb93090-mb00/pci-frv.h @@ -31,7 +31,6 @@ void pcibios_resource_survey(void); /* pci-vdk.c */ extern int __nongpreldata pcibios_last_bus; -extern struct pci_bus *__nongpreldata pci_root_bus; extern struct pci_ops *__nongpreldata pci_root_ops; /* pci-irq.c */ diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c index d186b254ce99..0aa35f0eb0db 100644 --- a/arch/frv/mb93090-mb00/pci-vdk.c +++ b/arch/frv/mb93090-mb00/pci-vdk.c @@ -26,7 +26,6 @@ unsigned int __nongpreldata pci_probe = 1; int __nongpreldata pcibios_last_bus = -1; -struct pci_bus *__nongpreldata pci_root_bus; struct pci_ops *__nongpreldata pci_root_ops; /* @@ -416,8 +415,7 @@ int __init pcibios_init(void) printk("PCI: Probing PCI hardware\n"); pci_add_resource(&resources, &pci_ioport_resource); pci_add_resource(&resources, &pci_iomem_resource); - pci_root_bus = pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, - &resources); + pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources); pcibios_irq_init(); pcibios_fixup_peer_bridges(); diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 55b72ad57329..60532ab27346 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -393,6 +393,14 @@ out1: return NULL; } +int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) +{ + struct pci_controller *controller = bridge->bus->sysdata; + + ACPI_HANDLE_SET(&bridge->dev, controller->acpi_handle); + return 0; +} + static int is_valid_resource(struct pci_dev *dev, int idx) { unsigned int i, type_mask = IORESOURCE_IO | IORESOURCE_MEM; diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.h b/arch/mn10300/unit-asb2305/pci-asb2305.h index 1194fe486b01..7fa66a0e4624 100644 --- a/arch/mn10300/unit-asb2305/pci-asb2305.h +++ b/arch/mn10300/unit-asb2305/pci-asb2305.h @@ -36,7 +36,6 @@ extern void pcibios_resource_survey(void); /* pci.c */ extern int pcibios_last_bus; -extern struct pci_bus *pci_root_bus; extern struct pci_ops *pci_root_ops; extern struct irq_routing_table *pcibios_get_irq_routing_table(void); diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c index 6911e845b8cd..1adcf024bb9a 100644 --- a/arch/mn10300/unit-asb2305/pci.c +++ b/arch/mn10300/unit-asb2305/pci.c @@ -24,7 +24,6 @@ unsigned int pci_probe = 1; int pcibios_last_bus = -1; -struct pci_bus *pci_root_bus; struct pci_ops *pci_root_ops; /* @@ -377,8 +376,7 @@ static int __init pcibios_init(void) pci_add_resource_offset(&resources, &pci_ioport_resource, io_offset); pci_add_resource_offset(&resources, &pci_iomem_resource, mem_offset); - pci_root_bus = pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, - &resources); + pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, &resources); pcibios_irq_init(); pcibios_fixup_irqs(); diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h index c28fd02f4bf7..d9e9e6c7ed32 100644 --- a/arch/x86/include/asm/pci.h +++ b/arch/x86/include/asm/pci.h @@ -14,6 +14,9 @@ struct pci_sysdata { int domain; /* PCI domain */ int node; /* NUMA node */ +#ifdef CONFIG_ACPI + void *acpi; /* ACPI-specific data */ +#endif #ifdef CONFIG_X86_64 void *iommu; /* IOMMU private data */ #endif diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h index 747e5a38b590..fa1195dae425 100644 --- a/arch/x86/include/asm/pci_x86.h +++ b/arch/x86/include/asm/pci_x86.h @@ -54,7 +54,6 @@ void pcibios_set_cache_line_size(void); /* pci-pc.c */ extern int pcibios_last_bus; -extern struct pci_bus *pci_root_bus; extern struct pci_ops pci_root_ops; void pcibios_scan_specific_bus(int busn); diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 53ea60458e01..3e724256dbee 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -521,6 +521,7 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) sd = &info->sd; sd->domain = domain; sd->node = node; + sd->acpi = device->handle; /* * Maybe the desired pci bus has been already scanned. In such case * it is unnecessary to scan the pci bus with the given domain,busnum. @@ -592,6 +593,14 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) return bus; } +int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) +{ + struct pci_sysdata *sd = bridge->bus->sysdata; + + ACPI_HANDLE_SET(&bridge->dev, sd->acpi); + return 0; +} + int __init pci_acpi_init(void) { struct pci_dev *dev = NULL; diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index ccd0ab3ab899..901177d75ff5 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -34,7 +34,6 @@ int noioapicreroute = 1; #endif int pcibios_last_bus = -1; unsigned long pirq_table_addr; -struct pci_bus *pci_root_bus; const struct pci_raw_ops *__read_mostly raw_pci_ops; const struct pci_raw_ops *__read_mostly raw_pci_ext_ops; diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index dd8ca6f7223b..94919e307f8e 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -51,6 +51,7 @@ struct pcibios_fwaddrmap { static LIST_HEAD(pcibios_fwaddrmappings); static DEFINE_SPINLOCK(pcibios_fwaddrmap_lock); +static bool pcibios_fw_addr_done; /* Must be called with 'pcibios_fwaddrmap_lock' lock held. */ static struct pcibios_fwaddrmap *pcibios_fwaddrmap_lookup(struct pci_dev *dev) @@ -72,6 +73,9 @@ pcibios_save_fw_addr(struct pci_dev *dev, int idx, resource_size_t fw_addr) unsigned long flags; struct pcibios_fwaddrmap *map; + if (pcibios_fw_addr_done) + return; + spin_lock_irqsave(&pcibios_fwaddrmap_lock, flags); map = pcibios_fwaddrmap_lookup(dev); if (!map) { @@ -97,6 +101,9 @@ resource_size_t pcibios_retrieve_fw_addr(struct pci_dev *dev, int idx) struct pcibios_fwaddrmap *map; resource_size_t fw_addr = 0; + if (pcibios_fw_addr_done) + return 0; + spin_lock_irqsave(&pcibios_fwaddrmap_lock, flags); map = pcibios_fwaddrmap_lookup(dev); if (map) @@ -106,7 +113,7 @@ resource_size_t pcibios_retrieve_fw_addr(struct pci_dev *dev, int idx) return fw_addr; } -static void pcibios_fw_addr_list_del(void) +static void __init pcibios_fw_addr_list_del(void) { unsigned long flags; struct pcibios_fwaddrmap *entry, *next; @@ -118,6 +125,7 @@ static void pcibios_fw_addr_list_del(void) kfree(entry); } spin_unlock_irqrestore(&pcibios_fwaddrmap_lock, flags); + pcibios_fw_addr_done = true; } static int @@ -193,46 +201,46 @@ EXPORT_SYMBOL(pcibios_align_resource); * as well. */ -static void __init pcibios_allocate_bus_resources(struct list_head *bus_list) +static void pcibios_allocate_bridge_resources(struct pci_dev *dev) { - struct pci_bus *bus; - struct pci_dev *dev; int idx; struct resource *r; - /* Depth-First Search on bus tree */ - list_for_each_entry(bus, bus_list, node) { - if ((dev = bus->self)) { - for (idx = PCI_BRIDGE_RESOURCES; - idx < PCI_NUM_RESOURCES; idx++) { - r = &dev->resource[idx]; - if (!r->flags) - continue; - if (!r->start || - pci_claim_resource(dev, idx) < 0) { - /* - * Something is wrong with the region. - * Invalidate the resource to prevent - * child resource allocations in this - * range. - */ - r->start = r->end = 0; - r->flags = 0; - } - } + for (idx = PCI_BRIDGE_RESOURCES; idx < PCI_NUM_RESOURCES; idx++) { + r = &dev->resource[idx]; + if (!r->flags) + continue; + if (!r->start || pci_claim_resource(dev, idx) < 0) { + /* + * Something is wrong with the region. + * Invalidate the resource to prevent + * child resource allocations in this + * range. + */ + r->start = r->end = 0; + r->flags = 0; } - pcibios_allocate_bus_resources(&bus->children); } } +static void pcibios_allocate_bus_resources(struct pci_bus *bus) +{ + struct pci_bus *child; + + /* Depth-First Search on bus tree */ + if (bus->self) + pcibios_allocate_bridge_resources(bus->self); + list_for_each_entry(child, &bus->children, node) + pcibios_allocate_bus_resources(child); +} + struct pci_check_idx_range { int start; int end; }; -static void __init pcibios_allocate_resources(int pass) +static void pcibios_allocate_dev_resources(struct pci_dev *dev, int pass) { - struct pci_dev *dev = NULL; int idx, disabled, i; u16 command; struct resource *r; @@ -244,14 +252,13 @@ static void __init pcibios_allocate_resources(int pass) #endif }; - for_each_pci_dev(dev) { - pci_read_config_word(dev, PCI_COMMAND, &command); - for (i = 0; i < ARRAY_SIZE(idx_range); i++) + pci_read_config_word(dev, PCI_COMMAND, &command); + for (i = 0; i < ARRAY_SIZE(idx_range); i++) for (idx = idx_range[i].start; idx <= idx_range[i].end; idx++) { r = &dev->resource[idx]; - if (r->parent) /* Already allocated */ + if (r->parent) /* Already allocated */ continue; - if (!r->start) /* Address not assigned at all */ + if (!r->start) /* Address not assigned at all */ continue; if (r->flags & IORESOURCE_IO) disabled = !(command & PCI_COMMAND_IO); @@ -270,44 +277,74 @@ static void __init pcibios_allocate_resources(int pass) } } } - if (!pass) { - r = &dev->resource[PCI_ROM_RESOURCE]; - if (r->flags & IORESOURCE_ROM_ENABLE) { - /* Turn the ROM off, leave the resource region, - * but keep it unregistered. */ - u32 reg; - dev_dbg(&dev->dev, "disabling ROM %pR\n", r); - r->flags &= ~IORESOURCE_ROM_ENABLE; - pci_read_config_dword(dev, - dev->rom_base_reg, ®); - pci_write_config_dword(dev, dev->rom_base_reg, + if (!pass) { + r = &dev->resource[PCI_ROM_RESOURCE]; + if (r->flags & IORESOURCE_ROM_ENABLE) { + /* Turn the ROM off, leave the resource region, + * but keep it unregistered. */ + u32 reg; + dev_dbg(&dev->dev, "disabling ROM %pR\n", r); + r->flags &= ~IORESOURCE_ROM_ENABLE; + pci_read_config_dword(dev, dev->rom_base_reg, ®); + pci_write_config_dword(dev, dev->rom_base_reg, reg & ~PCI_ROM_ADDRESS_ENABLE); - } } } } -static int __init pcibios_assign_resources(void) +static void pcibios_allocate_resources(struct pci_bus *bus, int pass) +{ + struct pci_dev *dev; + struct pci_bus *child; + + list_for_each_entry(dev, &bus->devices, bus_list) { + pcibios_allocate_dev_resources(dev, pass); + + child = dev->subordinate; + if (child) + pcibios_allocate_resources(child, pass); + } +} + +static void pcibios_allocate_dev_rom_resource(struct pci_dev *dev) { - struct pci_dev *dev = NULL; struct resource *r; - if (!(pci_probe & PCI_ASSIGN_ROMS)) { - /* - * Try to use BIOS settings for ROMs, otherwise let - * pci_assign_unassigned_resources() allocate the new - * addresses. - */ - for_each_pci_dev(dev) { - r = &dev->resource[PCI_ROM_RESOURCE]; - if (!r->flags || !r->start) - continue; - if (pci_claim_resource(dev, PCI_ROM_RESOURCE) < 0) { - r->end -= r->start; - r->start = 0; - } - } + /* + * Try to use BIOS settings for ROMs, otherwise let + * pci_assign_unassigned_resources() allocate the new + * addresses. + */ + r = &dev->resource[PCI_ROM_RESOURCE]; + if (!r->flags || !r->start) + return; + + if (pci_claim_resource(dev, PCI_ROM_RESOURCE) < 0) { + r->end -= r->start; + r->start = 0; } +} +static void pcibios_allocate_rom_resources(struct pci_bus *bus) +{ + struct pci_dev *dev; + struct pci_bus *child; + + list_for_each_entry(dev, &bus->devices, bus_list) { + pcibios_allocate_dev_rom_resource(dev); + + child = dev->subordinate; + if (child) + pcibios_allocate_rom_resources(child); + } +} + +static int __init pcibios_assign_resources(void) +{ + struct pci_bus *bus; + + if (!(pci_probe & PCI_ASSIGN_ROMS)) + list_for_each_entry(bus, &pci_root_buses, node) + pcibios_allocate_rom_resources(bus); pci_assign_unassigned_resources(); pcibios_fw_addr_list_del(); @@ -315,12 +352,32 @@ static int __init pcibios_assign_resources(void) return 0; } +void pcibios_resource_survey_bus(struct pci_bus *bus) +{ + dev_printk(KERN_DEBUG, &bus->dev, "Allocating resources\n"); + + pcibios_allocate_bus_resources(bus); + + pcibios_allocate_resources(bus, 0); + pcibios_allocate_resources(bus, 1); + + if (!(pci_probe & PCI_ASSIGN_ROMS)) + pcibios_allocate_rom_resources(bus); +} + void __init pcibios_resource_survey(void) { + struct pci_bus *bus; + DBG("PCI: Allocating resources\n"); - pcibios_allocate_bus_resources(&pci_root_buses); - pcibios_allocate_resources(0); - pcibios_allocate_resources(1); + + list_for_each_entry(bus, &pci_root_buses, node) + pcibios_allocate_bus_resources(bus); + + list_for_each_entry(bus, &pci_root_buses, node) + pcibios_allocate_resources(bus, 0); + list_for_each_entry(bus, &pci_root_buses, node) + pcibios_allocate_resources(bus, 1); e820_reserve_resources_late(); /* diff --git a/arch/x86/pci/legacy.c b/arch/x86/pci/legacy.c index 4a2ab9cb3659..4db96fb1c232 100644 --- a/arch/x86/pci/legacy.c +++ b/arch/x86/pci/legacy.c @@ -30,7 +30,7 @@ int __init pci_legacy_init(void) } printk("PCI: Probing PCI hardware\n"); - pci_root_bus = pcibios_scan_root(0); + pcibios_scan_root(0); return 0; } diff --git a/arch/x86/pci/numaq_32.c b/arch/x86/pci/numaq_32.c index b96b14c250b6..72c229f9ebcf 100644 --- a/arch/x86/pci/numaq_32.c +++ b/arch/x86/pci/numaq_32.c @@ -152,7 +152,7 @@ int __init pci_numaq_init(void) raw_pci_ops = &pci_direct_conf1_mq; - pci_root_bus = pcibios_scan_root(0); + pcibios_scan_root(0); if (num_online_nodes() > 1) for_each_online_node(quad) { if (quad == 0) diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 1a4ed64586a7..320006019e68 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -306,7 +306,7 @@ config ACPI_DEBUG_FUNC_TRACE is about half of the penalty and is rarely useful. config ACPI_PCI_SLOT - tristate "PCI slot detection driver" + bool "PCI slot detection driver" depends on SYSFS default n help @@ -315,9 +315,6 @@ config ACPI_PCI_SLOT i.e., segment/bus/device/function tuples, with physical slots in the system. If you are unsure, say N. - To compile this driver as a module, choose M here: - the module will be called pci_slot. - config X86_PM_TIMER bool "Power Management Timer Support" if EXPERT depends on X86 diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 79092328cf06..c8b70b5b2814 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -25,8 +25,14 @@ int init_acpi_device_notify(void); int acpi_scan_init(void); +#ifdef CONFIG_ACPI_PCI_SLOT +void acpi_pci_slot_init(void); +#else +static inline void acpi_pci_slot_init(void) { } +#endif void acpi_pci_root_init(void); void acpi_pci_link_init(void); +void acpi_pci_root_hp_init(void); void acpi_platform_init(void); int acpi_sysfs_init(void); void acpi_csrt_init(void); diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 8080588f88cb..586e7e993d3d 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -84,8 +84,7 @@ static acpi_osd_handler acpi_irq_handler; static void *acpi_irq_context; static struct workqueue_struct *kacpid_wq; static struct workqueue_struct *kacpi_notify_wq; -struct workqueue_struct *kacpi_hotplug_wq; -EXPORT_SYMBOL(kacpi_hotplug_wq); +static struct workqueue_struct *kacpi_hotplug_wq; /* * This list of permanent mappings is for memory that may be accessed from @@ -1778,3 +1777,24 @@ void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, { __acpi_os_prepare_sleep = func; } + +void alloc_acpi_hp_work(acpi_handle handle, u32 type, void *context, + void (*func)(struct work_struct *work)) +{ + struct acpi_hp_work *hp_work; + int ret; + + hp_work = kmalloc(sizeof(*hp_work), GFP_KERNEL); + if (!hp_work) + return; + + hp_work->handle = handle; + hp_work->type = type; + hp_work->context = context; + + INIT_WORK(&hp_work->work, func); + ret = queue_work(kacpi_hotplug_wq, &hp_work->work); + if (!ret) + kfree(hp_work); +} +EXPORT_SYMBOL_GPL(alloc_acpi_hp_work); diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index 68a921d03247..41c5e1b799ef 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -53,9 +53,6 @@ struct acpi_prt_entry { u32 index; /* GSI, or link _CRS index */ }; -static LIST_HEAD(acpi_prt_list); -static DEFINE_SPINLOCK(acpi_prt_lock); - static inline char pin_name(int pin) { return 'A' + pin - 1; @@ -65,28 +62,6 @@ static inline char pin_name(int pin) PCI IRQ Routing Table (PRT) Support -------------------------------------------------------------------------- */ -static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(struct pci_dev *dev, - int pin) -{ - struct acpi_prt_entry *entry; - int segment = pci_domain_nr(dev->bus); - int bus = dev->bus->number; - int device = PCI_SLOT(dev->devfn); - - spin_lock(&acpi_prt_lock); - list_for_each_entry(entry, &acpi_prt_list, list) { - if ((segment == entry->id.segment) - && (bus == entry->id.bus) - && (device == entry->id.device) - && (pin == entry->pin)) { - spin_unlock(&acpi_prt_lock); - return entry; - } - } - spin_unlock(&acpi_prt_lock); - return NULL; -} - /* http://bugzilla.kernel.org/show_bug.cgi?id=4773 */ static const struct dmi_system_id medion_md9580[] = { { @@ -184,11 +159,19 @@ static void do_prt_fixups(struct acpi_prt_entry *entry, } } -static int acpi_pci_irq_add_entry(acpi_handle handle, int segment, int bus, - struct acpi_pci_routing_table *prt) +static int acpi_pci_irq_check_entry(acpi_handle handle, struct pci_dev *dev, + int pin, struct acpi_pci_routing_table *prt, + struct acpi_prt_entry **entry_ptr) { + int segment = pci_domain_nr(dev->bus); + int bus = dev->bus->number; + int device = PCI_SLOT(dev->devfn); struct acpi_prt_entry *entry; + if (((prt->address >> 16) & 0xffff) != device || + prt->pin + 1 != pin) + return -ENODEV; + entry = kzalloc(sizeof(struct acpi_prt_entry), GFP_KERNEL); if (!entry) return -ENOMEM; @@ -237,43 +220,37 @@ static int acpi_pci_irq_add_entry(acpi_handle handle, int segment, int bus, entry->id.device, pin_name(entry->pin), prt->source, entry->index)); - spin_lock(&acpi_prt_lock); - list_add_tail(&entry->list, &acpi_prt_list); - spin_unlock(&acpi_prt_lock); + *entry_ptr = entry; return 0; } -int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus) +static int acpi_pci_irq_find_prt_entry(struct pci_dev *dev, + int pin, struct acpi_prt_entry **entry_ptr) { acpi_status status; struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; struct acpi_pci_routing_table *entry; + acpi_handle handle = NULL; - /* 'handle' is the _PRT's parent (root bridge or PCI-PCI bridge) */ - status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer); - if (ACPI_FAILURE(status)) - return -ENODEV; - - printk(KERN_DEBUG "ACPI: PCI Interrupt Routing Table [%s._PRT]\n", - (char *) buffer.pointer); - - kfree(buffer.pointer); + if (dev->bus->bridge) + handle = ACPI_HANDLE(dev->bus->bridge); - buffer.length = ACPI_ALLOCATE_BUFFER; - buffer.pointer = NULL; + if (!handle) + return -ENODEV; + /* 'handle' is the _PRT's parent (root bridge or PCI-PCI bridge) */ status = acpi_get_irq_routing_table(handle, &buffer); if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRT [%s]", - acpi_format_exception(status))); kfree(buffer.pointer); return -ENODEV; } entry = buffer.pointer; while (entry && (entry->length > 0)) { - acpi_pci_irq_add_entry(handle, segment, bus, entry); + if (!acpi_pci_irq_check_entry(handle, dev, pin, + entry, entry_ptr)) + break; entry = (struct acpi_pci_routing_table *) ((unsigned long)entry + entry->length); } @@ -282,23 +259,6 @@ int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus) return 0; } -void acpi_pci_irq_del_prt(int segment, int bus) -{ - struct acpi_prt_entry *entry, *tmp; - - printk(KERN_DEBUG - "ACPI: Delete PCI Interrupt Routing Table for %04x:%02x\n", - segment, bus); - spin_lock(&acpi_prt_lock); - list_for_each_entry_safe(entry, tmp, &acpi_prt_list, list) { - if (segment == entry->id.segment && bus == entry->id.bus) { - list_del(&entry->list); - kfree(entry); - } - } - spin_unlock(&acpi_prt_lock); -} - /* ------------------------------------ |