diff options
Diffstat (limited to 'arch/x86/pci')
| -rw-r--r-- | arch/x86/pci/acpi.c | 59 | ||||
| -rw-r--r-- | arch/x86/pci/amd_bus.c | 10 | ||||
| -rw-r--r-- | arch/x86/pci/bus_numa.c | 13 | ||||
| -rw-r--r-- | arch/x86/pci/common.c | 128 | ||||
| -rw-r--r-- | arch/x86/pci/fixup.c | 24 | ||||
| -rw-r--r-- | arch/x86/pci/irq.c | 6 | ||||
| -rw-r--r-- | arch/x86/pci/legacy.c | 4 | ||||
| -rw-r--r-- | arch/x86/pci/numaq_32.c | 6 | ||||
| -rw-r--r-- | arch/x86/pci/visws.c | 4 |
9 files changed, 64 insertions, 190 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 4f25ec07755..01edac6c5e1 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -218,9 +218,8 @@ static void teardown_mcfg_map(struct pci_root_info *info) } #endif -static acpi_status -resource_to_addr(struct acpi_resource *resource, - struct acpi_resource_address64 *addr) +static acpi_status resource_to_addr(struct acpi_resource *resource, + struct acpi_resource_address64 *addr) { acpi_status status; struct acpi_resource_memory24 *memory24; @@ -265,8 +264,7 @@ resource_to_addr(struct acpi_resource *resource, return AE_ERROR; } -static acpi_status -count_resource(struct acpi_resource *acpi_res, void *data) +static acpi_status count_resource(struct acpi_resource *acpi_res, void *data) { struct pci_root_info *info = data; struct acpi_resource_address64 addr; @@ -278,8 +276,7 @@ count_resource(struct acpi_resource *acpi_res, void *data) return AE_OK; } -static acpi_status -setup_resource(struct acpi_resource *acpi_res, void *data) +static acpi_status setup_resource(struct acpi_resource *acpi_res, void *data) { struct pci_root_info *info = data; struct resource *res; @@ -435,9 +432,9 @@ static void release_pci_root_info(struct pci_host_bridge *bridge) __release_pci_root_info(info); } -static void -probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device, - int busnum, int domain) +static void probe_pci_root_info(struct pci_root_info *info, + struct acpi_device *device, + int busnum, int domain) { size_t size; @@ -473,16 +470,13 @@ probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device, struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) { struct acpi_device *device = root->device; - struct pci_root_info *info = NULL; + struct pci_root_info *info; int domain = root->segment; int busnum = root->secondary.start; LIST_HEAD(resources); - struct pci_bus *bus = NULL; + struct pci_bus *bus; struct pci_sysdata *sd; int node; -#ifdef CONFIG_ACPI_NUMA - int pxm; -#endif if (pci_ignore_seg) domain = 0; @@ -494,19 +488,12 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) return NULL; } - node = -1; -#ifdef CONFIG_ACPI_NUMA - pxm = acpi_get_pxm(device->handle); - if (pxm >= 0) - node = pxm_to_node(pxm); - if (node != -1) - set_mp_bus_to_node(busnum, node); - else -#endif - node = get_mp_bus_to_node(busnum); + node = acpi_get_node(device->handle); + if (node == NUMA_NO_NODE) + node = x86_pci_root_bus_node(busnum); - if (node != -1 && !node_online(node)) - node = -1; + if (node != NUMA_NO_NODE && !node_online(node)) + node = NUMA_NO_NODE; info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) { @@ -519,15 +506,12 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) sd->domain = domain; sd->node = node; sd->companion = device; - /* - * 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. - */ + bus = pci_find_bus(domain, busnum); if (bus) { /* - * If the desired bus exits, the content of bus->sysdata will - * be replaced by sd. + * If the desired bus has been scanned already, replace + * its bus->sysdata. */ memcpy(bus->sysdata, sd, sizeof(*sd)); kfree(info); @@ -572,15 +556,8 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) pcie_bus_configure_settings(child); } - if (bus && node != -1) { -#ifdef CONFIG_ACPI_NUMA - if (pxm >= 0) - dev_printk(KERN_DEBUG, &bus->dev, - "on NUMA node %d (pxm %d)\n", node, pxm); -#else + if (bus && node != NUMA_NO_NODE) dev_printk(KERN_DEBUG, &bus->dev, "on NUMA node %d\n", node); -#endif - } return bus; } diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c index a48be98e9de..a313a7fb6b8 100644 --- a/arch/x86/pci/amd_bus.c +++ b/arch/x86/pci/amd_bus.c @@ -44,15 +44,6 @@ static struct pci_root_info __init *find_pci_root_info(int node, int link) return NULL; } -static void __init set_mp_bus_range_to_node(int min_bus, int max_bus, int node) -{ -#ifdef CONFIG_NUMA - int j; - - for (j = min_bus; j <= max_bus; j++) - set_mp_bus_to_node(j, node); -#endif -} /** * early_fill_mp_bus_to_node() * called before pcibios_scan_root and pci_scan_bus @@ -117,7 +108,6 @@ static int __init early_fill_mp_bus_info(void) min_bus = (reg >> 16) & 0xff; max_bus = (reg >> 24) & 0xff; node = (reg >> 4) & 0x07; - set_mp_bus_range_to_node(min_bus, max_bus, node); link = (reg >> 8) & 0x03; info = alloc_pci_root_info(min_bus, max_bus, node, link); diff --git a/arch/x86/pci/bus_numa.c b/arch/x86/pci/bus_numa.c index c2735feb250..f3a2cfc1412 100644 --- a/arch/x86/pci/bus_numa.c +++ b/arch/x86/pci/bus_numa.c @@ -10,9 +10,6 @@ static struct pci_root_info *x86_find_pci_root_info(int bus) { struct pci_root_info *info; - if (list_empty(&pci_root_infos)) - return NULL; - list_for_each_entry(info, &pci_root_infos, list) if (info->busn.start == bus) return info; @@ -20,6 +17,16 @@ static struct pci_root_info *x86_find_pci_root_info(int bus) return NULL; } +int x86_pci_root_bus_node(int bus) +{ + struct pci_root_info *info = x86_find_pci_root_info(bus); + + if (!info) + return NUMA_NO_NODE; + + return info->node; +} + void x86_pci_root_bus_resources(int bus, struct list_head *resources) { struct pci_root_info *info = x86_find_pci_root_info(bus); diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 981c2dbd72c..d491deddeba 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -456,19 +456,25 @@ void __init dmi_check_pciprobe(void) dmi_check_system(pciprobe_dmi_table); } -struct pci_bus *pcibios_scan_root(int busnum) +void pcibios_scan_root(int busnum) { - struct pci_bus *bus = NULL; + struct pci_bus *bus; + struct pci_sysdata *sd; + LIST_HEAD(resources); - while ((bus = pci_find_next_bus(bus)) != NULL) { - if (bus->number == busnum) { - /* Already scanned */ - return bus; - } + sd = kzalloc(sizeof(*sd), GFP_KERNEL); + if (!sd) { + printk(KERN_ERR "PCI: OOM, skipping PCI bus %02x\n", busnum); + return; + } + sd->node = x86_pci_root_bus_node(busnum); + x86_pci_root_bus_resources(busnum, &resources); + printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busnum); + bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, sd, &resources); + if (!bus) { + pci_free_resource_list(&resources); + kfree(sd); } - - return pci_scan_bus_on_node(busnum, &pci_root_ops, - get_mp_bus_to_node(busnum)); } void __init pcibios_set_cache_line_size(void) @@ -677,105 +683,3 @@ int pci_ext_cfg_avail(void) else return 0; } - -struct pci_bus *pci_scan_bus_on_node(int busno, struct pci_ops *ops, int node) -{ - LIST_HEAD(resources); - struct pci_bus *bus = NULL; - struct pci_sysdata *sd; - - /* - * Allocate per-root-bus (not per bus) arch-specific data. - * TODO: leak; this memory is never freed. - * It's arguable whether it's worth the trouble to care. - */ - sd = kzalloc(sizeof(*sd), GFP_KERNEL); - if (!sd) { - printk(KERN_ERR "PCI: OOM, skipping PCI bus %02x\n", busno); - return NULL; - } - sd->node = node; - x86_pci_root_bus_resources(busno, &resources); - printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busno); - bus = pci_scan_root_bus(NULL, busno, ops, sd, &resources); - if (!bus) { - pci_free_resource_list(&resources); - kfree(sd); - } - - return bus; -} - -struct pci_bus *pci_scan_bus_with_sysdata(int busno) -{ - return pci_scan_bus_on_node(busno, &pci_root_ops, -1); -} - -/* - * NUMA info for PCI busses - * - * Early arch code is responsible for filling in reasonable values here. - * A node id of "-1" means "use current node". In other words, if a bus - * has a -1 node id, it's not tightly coupled to any particular chunk - * of memory (as is the case on some Nehalem systems). - */ -#ifdef CONFIG_NUMA - -#define BUS_NR 256 - -#ifdef CONFIG_X86_64 - -static int mp_bus_to_node[BUS_NR] = { - [0 ... BUS_NR - 1] = -1 -}; - -void set_mp_bus_to_node(int busnum, int node) -{ - if (busnum >= 0 && busnum < BUS_NR) - mp_bus_to_node[busnum] = node; -} - -int get_mp_bus_to_node(int busnum) -{ - int node = -1; - - if (busnum < 0 || busnum > (BUS_NR - 1)) - return node; - - node = mp_bus_to_node[busnum]; - - /* - * let numa_node_id to decide it later in dma_alloc_pages - * if there is no ram on that node - */ - if (node != -1 && !node_online(node)) - node = -1; - - return node; -} - -#else /* CONFIG_X86_32 */ - -static int mp_bus_to_node[BUS_NR] = { - [0 ... BUS_NR - 1] = -1 -}; - -void set_mp_bus_to_node(int busnum, int node) -{ - if (busnum >= 0 && busnum < BUS_NR) - mp_bus_to_node[busnum] = (unsigned char) node; -} - -int get_mp_bus_to_node(int busnum) -{ - int node; - - if (busnum < 0 || busnum > (BUS_NR - 1)) - return 0; - node = mp_bus_to_node[busnum]; - return node; -} - -#endif /* CONFIG_X86_32 */ - -#endif /* CONFIG_NUMA */ diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c index bca9e85daaa..94ae9ae9574 100644 --- a/arch/x86/pci/fixup.c +++ b/arch/x86/pci/fixup.c @@ -25,9 +25,9 @@ static void pci_fixup_i450nx(struct pci_dev *d) dev_dbg(&d->dev, "i450NX PXB %d: %02x/%02x/%02x\n", pxb, busno, suba, subb); if (busno) - pci_scan_bus_with_sysdata(busno); /* Bus A */ + pcibios_scan_root(busno); /* Bus A */ if (suba < subb) - pci_scan_bus_with_sysdata(suba+1); /* Bus B */ + pcibios_scan_root(suba+1); /* Bus B */ } pcibios_last_bus = -1; } @@ -42,7 +42,7 @@ static void pci_fixup_i450gx(struct pci_dev *d) u8 busno; pci_read_config_byte(d, 0x4a, &busno); dev_info(&d->dev, "i440KX/GX host bridge; secondary bus %02x\n", busno); - pci_scan_bus_with_sysdata(busno); + pcibios_scan_root(busno); pcibios_last_bus = -1; } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454GX, pci_fixup_i450gx); @@ -313,9 +313,10 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PC1, pcie_r * IORESOURCE_ROM_SHADOW is used to associate the boot video * card with this copy. On laptops this copy has to be used since * the main ROM may be compressed or combined with another image. - * See pci_map_rom() for use of this flag. IORESOURCE_ROM_SHADOW - * is marked here since the boot video device will be the only enabled - * video device at this point. + * See pci_map_rom() for use of this flag. Before marking the device + * with IORESOURCE_ROM_SHADOW check if a vga_default_device is already set + * by either arch cde or vga-arbitration, if so only apply the fixup to this + * already determined primary video card. */ static void pci_fixup_video(struct pci_dev *pdev) @@ -346,12 +347,13 @@ static void pci_fixup_video(struct pci_dev *pdev) } bus = bus->parent; } - pci_read_config_word(pdev, PCI_COMMAND, &config); - if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) { - pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW; - dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n"); - if (!vga_default_device()) + if (!vga_default_device() || pdev == vga_default_device()) { + pci_read_config_word(pdev, PCI_COMMAND, &config); + if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) { + pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW; + dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n"); vga_set_default_device(pdev); + } } } DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID, diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c index 372e9b8989b..84112f55dd7 100644 --- a/arch/x86/pci/irq.c +++ b/arch/x86/pci/irq.c @@ -136,13 +136,9 @@ static void __init pirq_peer_trick(void) busmap[e->bus] = 1; } for (i = 1; i < 256; i++) { - int node; if (!busmap[i] || pci_find_bus(0, i)) continue; - node = get_mp_bus_to_node(i); - if (pci_scan_bus_on_node(i, &pci_root_ops, node)) - printk(KERN_INFO "PCI: Discovered primary peer " - "bus %02x [IRQ]\n", i); + pcibios_scan_root(i); } pcibios_last_bus = -1; } diff --git a/arch/x86/pci/legacy.c b/arch/x86/pci/legacy.c index 4db96fb1c23..5b662c0faf8 100644 --- a/arch/x86/pci/legacy.c +++ b/arch/x86/pci/legacy.c @@ -37,19 +37,17 @@ int __init pci_legacy_init(void) void pcibios_scan_specific_bus(int busn) { int devfn; - long node; u32 l; if (pci_find_bus(0, busn)) return; - node = get_mp_bus_to_node(busn); for (devfn = 0; devfn < 256; devfn += 8) { if (!raw_pci_read(0, busn, devfn, PCI_VENDOR_ID, 2, &l) && l != 0x0000 && l != 0xffff) { DBG("Found device at %02x:%02x [%04x]\n", busn, devfn, l); printk(KERN_INFO "PCI: Discovered peer bus %02x\n", busn); - pci_scan_bus_on_node(busn, &pci_root_ops, node); + pcibios_scan_root(busn); return; } } diff --git a/arch/x86/pci/numaq_32.c b/arch/x86/pci/numaq_32.c index 72c229f9ebc..080eb0374ff 100644 --- a/arch/x86/pci/numaq_32.c +++ b/arch/x86/pci/numaq_32.c @@ -135,11 +135,11 @@ static void pci_fixup_i450nx(struct pci_dev *d) pxb, busno, suba, subb); if (busno) { /* Bus A */ - pci_scan_bus_with_sysdata(QUADLOCAL2BUS(quad, busno)); + pcibios_scan_root(QUADLOCAL2BUS(quad, busno)); } if (suba < subb) { /* Bus B */ - pci_scan_bus_with_sysdata(QUADLOCAL2BUS(quad, suba+1)); + pcibios_scan_root(QUADLOCAL2BUS(quad, suba+1)); } } pcibios_last_bus = -1; @@ -159,7 +159,7 @@ int __init pci_numaq_init(void) continue; printk("Scanning PCI bus %d for quad %d\n", QUADLOCAL2BUS(quad,0), quad); - pci_scan_bus_with_sysdata(QUADLOCAL2BUS(quad, 0)); + pcibios_scan_root(QUADLOCAL2BUS(quad, 0)); } return 0; } diff --git a/arch/x86/pci/visws.c b/arch/x86/pci/visws.c index 3e6d2a6db86..cd9d4d1681d 100644 --- a/arch/x86/pci/visws.c +++ b/arch/x86/pci/visws.c @@ -78,8 +78,8 @@ int __init pci_visws_init(void) "bridge B (PIIX4) bus: %u\n", pci_bus1, pci_bus0); raw_pci_ops = &pci_direct_conf1; - pci_scan_bus_with_sysdata(pci_bus0); - pci_scan_bus_with_sysdata(pci_bus1); + pcibios_scan_root(pci_bus0); + pcibios_scan_root(pci_bus1); pci_fixup_irqs(pci_common_swizzle, visws_map_irq); pcibios_resource_survey(); /* Request bus scan */ |