From bded67cc51db4e29af84f9ec1d671a86b0b6763b Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 9 Dec 2013 22:54:40 -0800 Subject: PCI: Convert pcibios_resource_to_bus() to take a pci_bus, not a pci_dev commit fc2798502f860b18f3c7121e4dc659d3d9d28d74 upstream. These interfaces: pcibios_resource_to_bus(struct pci_dev *dev, *bus_region, *resource) pcibios_bus_to_resource(struct pci_dev *dev, *resource, *bus_region) took a pci_dev, but they really depend only on the pci_bus. And we want to use them in resource allocation paths where we have the bus but not a device, so this patch converts them to take the pci_bus instead of the pci_dev: pcibios_resource_to_bus(struct pci_bus *bus, *bus_region, *resource) pcibios_bus_to_resource(struct pci_bus *bus, *resource, *bus_region) In fact, with standard PCI-PCI bridges, they only depend on the host bridge, because that's the only place address translation occurs, but we aren't going that far yet. [bhelgaas: changelog] Signed-off-by: Yinghai Lu Signed-off-by: Bjorn Helgaas Cc: Dirk Behme [lizf: Backported to 3.4: - make changes to pci_host_bridge() instead of find_pci_root_bus() - adjust context] Signed-off-by: Zefan Li --- arch/alpha/kernel/pci-sysfs.c | 4 ++-- arch/powerpc/kernel/pci_of_scan.c | 4 ++-- arch/powerpc/platforms/powernv/pci-ioda.c | 4 ++-- arch/sparc/kernel/pci.c | 12 ++++++------ drivers/pci/probe.c | 32 +++++++++++++++---------------- drivers/pci/quirks.c | 2 +- drivers/pci/rom.c | 2 +- drivers/pci/setup-bus.c | 14 +++++++------- drivers/pci/setup-res.c | 2 +- drivers/pcmcia/i82092.c | 2 +- drivers/pcmcia/yenta_socket.c | 6 +++--- drivers/scsi/sym53c8xx_2/sym_glue.c | 5 +++-- drivers/video/arkfb.c | 2 +- drivers/video/s3fb.c | 2 +- drivers/video/vt8623fb.c | 2 +- include/linux/pci.h | 4 ++-- 16 files changed, 49 insertions(+), 50 deletions(-) diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c index 53649c7d0068..1a333558f656 100644 --- a/arch/alpha/kernel/pci-sysfs.c +++ b/arch/alpha/kernel/pci-sysfs.c @@ -84,7 +84,7 @@ static int pci_mmap_resource(struct kobject *kobj, if (iomem_is_exclusive(res->start)) return -EINVAL; - pcibios_resource_to_bus(pdev, &bar, res); + pcibios_resource_to_bus(pdev->bus, &bar, res); vma->vm_pgoff += bar.start >> (PAGE_SHIFT - (sparse ? 5 : 0)); mmap_type = res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_io; @@ -140,7 +140,7 @@ static int sparse_mem_mmap_fits(struct pci_dev *pdev, int num) long dense_offset; unsigned long sparse_size; - pcibios_resource_to_bus(pdev, &bar, &pdev->resource[num]); + pcibios_resource_to_bus(pdev->bus, &bar, &pdev->resource[num]); /* All core logic chips have 4G sparse address space, except CIA which has 16G (see xxx_SPARSE_MEM and xxx_DENSE_MEM diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c index 89dde171a6fa..55551a823bd3 100644 --- a/arch/powerpc/kernel/pci_of_scan.c +++ b/arch/powerpc/kernel/pci_of_scan.c @@ -111,7 +111,7 @@ static void of_pci_parse_addrs(struct device_node *node, struct pci_dev *dev) res->name = pci_name(dev); region.start = base; region.end = base + size - 1; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); } } @@ -276,7 +276,7 @@ void __devinit of_scan_pci_bridge(struct pci_dev *dev) res->flags = flags; region.start = of_read_number(&ranges[1], 2); region.end = region.start + size - 1; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); } sprintf(bus->name, "PCI Bus %04x:%02x", pci_domain_nr(bus), bus->number); diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 5da8e8df5922..79a17f798ef8 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -392,7 +392,7 @@ static void __devinit pnv_ioda_setup_pe_segments(struct pci_dev *dev) /* Setup IO segments */ if (io_res.start < io_res.end) { - pcibios_resource_to_bus(dev, ®ion, &io_res); + pcibios_resource_to_bus(dev->bus, ®ion, &io_res); pos = region.start; i = pos / phb->ioda.io_segsize; while(i < phb->ioda.total_pe && pos <= region.end) { @@ -422,7 +422,7 @@ static void __devinit pnv_ioda_setup_pe_segments(struct pci_dev *dev) /* Setup M32 segments */ if (m32_res.start < m32_res.end) { - pcibios_resource_to_bus(dev, ®ion, &m32_res); + pcibios_resource_to_bus(dev->bus, ®ion, &m32_res); pos = region.start; i = pos / phb->ioda.m32_segsize; while(i < phb->ioda.total_pe && pos <= region.end) { diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 8c5c9a5675b4..ab5f471aa6e9 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -409,7 +409,7 @@ static void __devinit pci_cfg_fake_ranges(struct pci_dev *dev, res2.flags = res->flags; region.start = base; region.end = limit + 0xfff; - pcibios_bus_to_resource(dev, &res2, ®ion); + pcibios_bus_to_resource(dev->bus, &res2, ®ion); if (!res->start) res->start = res2.start; if (!res->end) @@ -427,7 +427,7 @@ static void __devinit pci_cfg_fake_ranges(struct pci_dev *dev, IORESOURCE_MEM); region.start = base; region.end = limit + 0xfffff; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); } pci_read_config_word(dev, PCI_PREF_MEMORY_BASE, &mem_base_lo); @@ -458,7 +458,7 @@ static void __devinit pci_cfg_fake_ranges(struct pci_dev *dev, IORESOURCE_MEM | IORESOURCE_PREFETCH); region.start = base; region.end = limit + 0xfffff; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); } } @@ -480,7 +480,7 @@ static void __devinit apb_fake_ranges(struct pci_dev *dev, res->flags = IORESOURCE_IO; region.start = (first << 21); region.end = (last << 21) + ((1 << 21) - 1); - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); pci_read_config_byte(dev, APB_MEM_ADDRESS_MAP, &map); apb_calc_first_last(map, &first, &last); @@ -488,7 +488,7 @@ static void __devinit apb_fake_ranges(struct pci_dev *dev, res->flags = IORESOURCE_MEM; region.start = (first << 29); region.end = (last << 29) + ((1 << 29) - 1); - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); } static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm, @@ -579,7 +579,7 @@ static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm, res->flags = flags; region.start = GET_64BIT(ranges, 1); region.end = region.start + size - 1; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); } after_ranges: sprintf(bus->name, "PCI Bus %04x:%02x", pci_domain_nr(bus), diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index d62ad0b1516d..868440f83939 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -44,12 +44,10 @@ int no_pci_devices(void) } EXPORT_SYMBOL(no_pci_devices); -static struct pci_host_bridge *pci_host_bridge(struct pci_dev *dev) +static struct pci_host_bridge *pci_host_bridge(struct pci_bus *bus) { - struct pci_bus *bus; struct pci_host_bridge *bridge; - bus = dev->bus; while (bus->parent) bus = bus->parent; @@ -66,10 +64,10 @@ static bool resource_contains(struct resource *res1, struct resource *res2) return res1->start <= res2->start && res1->end >= res2->end; } -void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, +void pcibios_resource_to_bus(struct pci_bus *bus, struct pci_bus_region *region, struct resource *res) { - struct pci_host_bridge *bridge = pci_host_bridge(dev); + struct pci_host_bridge *bridge = pci_host_bridge(bus); struct pci_host_bridge_window *window; resource_size_t offset = 0; @@ -94,10 +92,10 @@ static bool region_contains(struct pci_bus_region *region1, return region1->start <= region2->start && region1->end >= region2->end; } -void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, +void pcibios_bus_to_resource(struct pci_bus *bus, struct resource *res, struct pci_bus_region *region) { - struct pci_host_bridge *bridge = pci_host_bridge(dev); + struct pci_host_bridge *bridge = pci_host_bridge(bus); struct pci_host_bridge_window *window; struct pci_bus_region bus_region; resource_size_t offset = 0; @@ -298,11 +296,11 @@ 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); + pcibios_bus_to_resource(dev->bus, res, ®ion); } else { region.start = l64; region.end = l64 + sz64; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", pos, res); } @@ -314,7 +312,7 @@ 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->bus, res, ®ion); dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", pos, res); } @@ -373,7 +371,7 @@ static void __devinit pci_read_bridge_io(struct pci_bus *child) res2.flags = res->flags; region.start = base; region.end = limit + 0xfff; - pcibios_bus_to_resource(dev, &res2, ®ion); + pcibios_bus_to_resource(dev->bus, &res2, ®ion); if (!res->start) res->start = res2.start; if (!res->end) @@ -399,7 +397,7 @@ static void __devinit pci_read_bridge_mmio(struct pci_bus *child) res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | IORESOURCE_MEM; region.start = base; region.end = limit + 0xfffff; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); dev_printk(KERN_DEBUG, &dev->dev, " bridge window %pR\n", res); } } @@ -448,7 +446,7 @@ static void __devinit pci_read_bridge_mmio_pref(struct pci_bus *child) res->flags |= IORESOURCE_MEM_64; region.start = base; region.end = limit + 0xfffff; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); dev_printk(KERN_DEBUG, &dev->dev, " bridge window %pR\n", res); } } @@ -1063,24 +1061,24 @@ int pci_setup_device(struct pci_dev *dev) region.end = 0x1F7; res = &dev->resource[0]; res->flags = LEGACY_IO_RESOURCE; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); region.start = 0x3F6; region.end = 0x3F6; res = &dev->resource[1]; res->flags = LEGACY_IO_RESOURCE; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); } if ((progif & 4) == 0) { region.start = 0x170; region.end = 0x177; res = &dev->resource[2]; res->flags = LEGACY_IO_RESOURCE; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); region.start = 0x376; region.end = 0x376; res = &dev->resource[3]; res->flags = LEGACY_IO_RESOURCE; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); } } break; diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index ffde183ac1b3..c0300242db86 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -393,7 +393,7 @@ static void __devinit quirk_io_region(struct pci_dev *dev, unsigned region, /* Convert from PCI bus to resource space. */ bus_region.start = res->start; bus_region.end = res->end; - pcibios_bus_to_resource(dev, res, &bus_region); + pcibios_bus_to_resource(dev->bus, res, &bus_region); if (pci_claim_resource(dev, nr) == 0) dev_info(&dev->dev, "quirk: %pR claimed by %s\n", diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c index e31659ce91eb..336b999a716d 100644 --- a/drivers/pci/rom.c +++ b/drivers/pci/rom.c @@ -31,7 +31,7 @@ int pci_enable_rom(struct pci_dev *pdev) if (!res->flags) return -1; - pcibios_resource_to_bus(pdev, ®ion, res); + pcibios_resource_to_bus(pdev->bus, ®ion, res); pci_read_config_dword(pdev, pdev->rom_base_reg, &rom_addr); rom_addr &= ~PCI_ROM_ADDRESS_MASK; rom_addr |= region.start | PCI_ROM_ADDRESS_ENABLE; diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 8fa2d4be88de..244ada411369 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -408,7 +408,7 @@ void pci_setup_cardbus(struct pci_bus *bus) bus->secondary, bus->subordinate); res = bus->resource[0]; - pcibios_resource_to_bus(bridge, ®ion, res); + pcibios_resource_to_bus(bridge->bus, ®ion, res); if (res->flags & IORESOURCE_IO) { /* * The IO resource is allocated a range twice as large as it @@ -422,7 +422,7 @@ void pci_setup_cardbus(struct pci_bus *bus) } res = bus->resource[1]; - pcibios_resource_to_bus(bridge, ®ion, res); + pcibios_resource_to_bus(bridge->bus, ®ion, res); if (res->flags & IORESOURCE_IO) { dev_info(&bridge->dev, " bridge window %pR\n", res); pci_write_config_dword(bridge, PCI_CB_IO_BASE_1, @@ -432,7 +432,7 @@ void pci_setup_cardbus(struct pci_bus *bus) } res = bus->resource[2]; - pcibios_resource_to_bus(bridge, ®ion, res); + pcibios_resource_to_bus(bridge->bus, ®ion, res); if (res->flags & IORESOURCE_MEM) { dev_info(&bridge->dev, " bridge window %pR\n", res); pci_write_config_dword(bridge, PCI_CB_MEMORY_BASE_0, @@ -442,7 +442,7 @@ void pci_setup_cardbus(struct pci_bus *bus) } res = bus->resource[3]; - pcibios_resource_to_bus(bridge, ®ion, res); + pcibios_resource_to_bus(bridge->bus, ®ion, res); if (res->flags & IORESOURCE_MEM) { dev_info(&bridge->dev, " bridge window %pR\n", res); pci_write_config_dword(bridge, PCI_CB_MEMORY_BASE_1, @@ -473,7 +473,7 @@ static void pci_setup_bridge_io(struct pci_bus *bus) /* Set up the top and bottom of the PCI I/O segment for this bus. */ res = bus->resource[0]; - pcibios_resource_to_bus(bridge, ®ion, res); + pcibios_resource_to_bus(bridge->bus, ®ion, res); if (res->flags & IORESOURCE_IO) { pci_read_config_dword(bridge, PCI_IO_BASE, &l); l &= 0xffff0000; @@ -504,7 +504,7 @@ static void pci_setup_bridge_mmio(struct pci_bus *bus) /* Set up the top and bottom of the PCI Memory segment for this bus. */ res = bus->resource[1]; - pcibios_resource_to_bus(bridge, ®ion, res); + pcibios_resource_to_bus(bridge->bus, ®ion, res); if (res->flags & IORESOURCE_MEM) { l = (region.start >> 16) & 0xfff0; l |= region.end & 0xfff00000; @@ -530,7 +530,7 @@ static void pci_setup_bridge_mmio_pref(struct pci_bus *bus) /* Set up PREF base/limit. */ bu = lu = 0; res = bus->resource[2]; - pcibios_resource_to_bus(bridge, ®ion, res); + pcibios_resource_to_bus(bridge->bus, ®ion, res); if (res->flags & IORESOURCE_PREFETCH) { l = (region.start >> 16) & 0xfff0; l |= region.end & 0xfff00000; diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index be76ebacf486..d427277e43ec 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -50,7 +50,7 @@ void pci_update_resource(struct pci_dev *dev, int resno) if (res->flags & IORESOURCE_PCI_FIXED) return; - pcibios_resource_to_bus(dev, ®ion, res); + pcibios_resource_to_bus(dev->bus, ®ion, res); new = region.start | (res->flags & PCI_REGION_FLAG_MASK); if (res->flags & IORESOURCE_IO) diff --git a/drivers/pcmcia/i82092.c b/drivers/pcmcia/i82092.c index 4e8831bdb6ef..099034b39812 100644 --- a/drivers/pcmcia/i82092.c +++ b/drivers/pcmcia/i82092.c @@ -610,7 +610,7 @@ static int i82092aa_set_mem_map(struct pcmcia_socket *socket, struct pccard_mem_ enter("i82092aa_set_mem_map"); - pcibios_resource_to_bus(sock_info->dev, ®ion, mem->res); + pcibios_resource_to_bus(sock_info->dev->bus, ®ion, mem->res); map = mem->map; if (map > 4) { diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index d07f9ac8c41d..13e76f9bdbcf 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -445,7 +445,7 @@ static int yenta_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map * unsigned int start, stop, card_start; unsigned short word; - pcibios_resource_to_bus(socket->dev, ®ion, mem->res); + pcibios_resource_to_bus(socket->dev->bus, ®ion, mem->res); map = mem->map; start = region.start; @@ -709,7 +709,7 @@ static int yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type region.start = config_readl(socket, addr_start) & mask; region.end = config_readl(socket, addr_end) | ~mask; if (region.start && region.end > region.start && !override_bios) { - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); if (pci_claim_resource(dev, PCI_BRIDGE_RESOURCES + nr) == 0) return 0; dev_printk(KERN_INFO, &dev->dev, @@ -1033,7 +1033,7 @@ static void yenta_config_init(struct yenta_socket *socket) struct pci_dev *dev = socket->dev; struct pci_bus_region region; - pcibios_resource_to_bus(socket->dev, ®ion, &dev->resource[0]); + pcibios_resource_to_bus(socket->dev->bus, ®ion, &dev->resource[0]); config_writel(socket, CB_LEGACY_MODE_BASE, 0); config_writel(socket, PCI_BASE_ADDRESS_0, region.start); diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index 36d1ed7817eb..1e3d7891b72c 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -1609,7 +1609,7 @@ sym_iomap_device(struct sym_device *device) struct pci_bus_region bus_addr; int i = 2; - pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[1]); + pcibios_resource_to_bus(pdev->bus, &bus_addr, &pdev->resource[1]); device->mmio_base = bus_addr.start; if (device->chip.features & FE_RAM) { @@ -1619,7 +1619,8 @@ sym_iomap_device(struct sym_device *device) */ if (!pdev->resource[i].flags) i++; - pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[i]); + pcibios_resource_to_bus(pdev->bus, &bus_addr, + &pdev->resource[i]); device->ram_base = bus_addr.start; } diff --git a/drivers/video/arkfb.c b/drivers/video/arkfb.c index 555dd4c64f5b..65196fe348e4 100644 --- a/drivers/video/arkfb.c +++ b/drivers/video/arkfb.c @@ -1014,7 +1014,7 @@ static int __devinit ark_pci_probe(struct pci_dev *dev, const struct pci_device_ vga_res.flags = IORESOURCE_IO; - pcibios_bus_to_resource(dev, &vga_res, &bus_reg); + pcibios_bus_to_resource(dev->bus, &vga_res, &bus_reg); par->state.vgabase = (void __iomem *) vga_res.start; diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c index 2c80246b18b8..7b7af8c8706d 100644 --- a/drivers/video/s3fb.c +++ b/drivers/video/s3fb.c @@ -1172,7 +1172,7 @@ static int __devinit s3_pci_probe(struct pci_dev *dev, const struct pci_device_i vga_res.flags = IORESOURCE_IO; - pcibios_bus_to_resource(dev, &vga_res, &bus_reg); + pcibios_bus_to_resource(dev->bus, &vga_res, &bus_reg); par->state.vgabase = (void __iomem *) vga_res.start; diff --git a/drivers/video/vt8623fb.c b/drivers/video/vt8623fb.c index 4e74d262cf3e..dfecf02fad37 100644 --- a/drivers/video/vt8623fb.c +++ b/drivers/video/vt8623fb.c @@ -727,7 +727,7 @@ static int __devinit vt8623_pci_probe(struct pci_dev *dev, const struct pci_devi vga_res.flags = IORESOURCE_IO; - pcibios_bus_to_resource(dev, &vga_res, &bus_reg); + pcibios_bus_to_resource(dev->bus, &vga_res, &bus_reg); par->state.vgabase = (void __iomem *) vga_res.start; diff --git a/include/linux/pci.h b/include/linux/pci.h index e444f5b49118..469c9536c5e5 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -648,9 +648,9 @@ void pci_fixup_cardbus(struct pci_bus *); /* Generic PCI functions used internally */ -void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, +void pcibios_resource_to_bus(struct pci_bus *bus, struct pci_bus_region *region, struct resource *res); -void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, +void pcibios_bus_to_resource(struct pci_bus *bus, struct resource *res, struct pci_bus_region *region); void pcibios_scan_specific_bus(int busn); extern struct pci_bus *pci_find_bus(int domain, int busnr); -- cgit v1.2.3