diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.2/0000-pci-backport.patch')
| -rw-r--r-- | target/linux/brcm47xx/patches-3.2/0000-pci-backport.patch | 2210 |
1 files changed, 2210 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/patches-3.2/0000-pci-backport.patch b/target/linux/brcm47xx/patches-3.2/0000-pci-backport.patch new file mode 100644 index 0000000000..5a6a9aedac --- /dev/null +++ b/target/linux/brcm47xx/patches-3.2/0000-pci-backport.patch @@ -0,0 +1,2210 @@ +--- a/Documentation/feature-removal-schedule.txt ++++ b/Documentation/feature-removal-schedule.txt +@@ -551,3 +551,15 @@ When: 3.5 + Why: The iwlagn module has been renamed iwlwifi. The alias will be around + for backward compatibility for several cycles and then dropped. + Who: Don Fry <donald.h.fry@intel.com> ++ ++---------------------------- ++ ++What: pci_scan_bus_parented() ++When: 3.5 ++Why: The pci_scan_bus_parented() interface creates a new root bus. The ++ bus is created with default resources (ioport_resource and ++ iomem_resource) that are always wrong, so we rely on arch code to ++ correct them later. Callers of pci_scan_bus_parented() should ++ convert to using pci_scan_root_bus() so they can supply a list of ++ bus resources when the bus is created. ++Who: Bjorn Helgaas <bhelgaas@google.com> +--- a/arch/alpha/kernel/pci.c ++++ b/arch/alpha/kernel/pci.c +@@ -281,27 +281,9 @@ pcibios_fixup_device_resources(struct pc + void __devinit + pcibios_fixup_bus(struct pci_bus *bus) + { +- /* Propagate hose info into the subordinate devices. */ +- +- struct pci_controller *hose = bus->sysdata; + struct pci_dev *dev = bus->self; + +- if (!dev) { +- /* Root bus. */ +- u32 pci_mem_end; +- u32 sg_base = hose->sg_pci ? hose->sg_pci->dma_base : ~0; +- unsigned long end; +- +- bus->resource[0] = hose->io_space; +- bus->resource[1] = hose->mem_space; +- +- /* Adjust hose mem_space limit to prevent PCI allocations +- in the iommu windows. */ +- pci_mem_end = min((u32)__direct_map_base, sg_base) - 1; +- end = hose->mem_space->start + pci_mem_end; +- if (hose->mem_space->end > end) +- hose->mem_space->end = end; +- } else if (pci_probe_only && ++ if (pci_probe_only && dev && + (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) { + pci_read_bridge_bases(bus); + pcibios_fixup_device_resources(dev, bus); +@@ -414,13 +396,31 @@ void __init + common_init_pci(void) + { + struct pci_controller *hose; ++ struct list_head resources; + struct pci_bus *bus; + int next_busno; + int need_domain_info = 0; ++ u32 pci_mem_end; ++ u32 sg_base; ++ unsigned long end; + + /* Scan all of the recorded PCI controllers. */ + for (next_busno = 0, hose = hose_head; hose; hose = hose->next) { +- bus = pci_scan_bus(next_busno, alpha_mv.pci_ops, hose); ++ sg_base = hose->sg_pci ? hose->sg_pci->dma_base : ~0; ++ ++ /* Adjust hose mem_space limit to prevent PCI allocations ++ in the iommu windows. */ ++ pci_mem_end = min((u32)__direct_map_base, sg_base) - 1; ++ end = hose->mem_space->start + pci_mem_end; ++ if (hose->mem_space->end > end) ++ hose->mem_space->end = end; ++ ++ INIT_LIST_HEAD(&resources); ++ pci_add_resource(&resources, hose->io_space); ++ pci_add_resource(&resources, hose->mem_space); ++ ++ bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops, ++ hose, &resources); + hose->bus = bus; + hose->need_domain_info = need_domain_info; + next_busno = bus->subordinate + 1; +--- a/arch/arm/common/it8152.c ++++ b/arch/arm/common/it8152.c +@@ -299,8 +299,8 @@ int __init it8152_pci_setup(int nr, stru + goto err1; + } + +- sys->resource[0] = &it8152_io; +- sys->resource[1] = &it8152_mem; ++ pci_add_resource(&sys->resources, &it8152_io); ++ pci_add_resource(&sys->resources, &it8152_mem); + + if (platform_notify || platform_notify_remove) { + printk(KERN_ERR "PCI: Can't use platform_notify\n"); +@@ -352,7 +352,7 @@ void pcibios_set_master(struct pci_dev * + + struct pci_bus * __init it8152_pci_scan_bus(int nr, struct pci_sys_data *sys) + { +- return pci_scan_bus(nr, &it8152_ops, sys); ++ return pci_scan_root_bus(NULL, nr, &it8152_ops, sys, &sys->resources); + } + + EXPORT_SYMBOL(dma_set_coherent_mask); +--- a/arch/arm/common/via82c505.c ++++ b/arch/arm/common/via82c505.c +@@ -86,7 +86,8 @@ int __init via82c505_setup(int nr, struc + struct pci_bus * __init via82c505_scan_bus(int nr, struct pci_sys_data *sysdata) + { + if (nr == 0) +- return pci_scan_bus(0, &via82c505_ops, sysdata); ++ return pci_scan_root_bus(NULL, 0, &via82c505_ops, sysdata, ++ &sysdata->resources); + + return NULL; + } +--- a/arch/arm/include/asm/mach/pci.h ++++ b/arch/arm/include/asm/mach/pci.h +@@ -40,7 +40,7 @@ struct pci_sys_data { + u64 mem_offset; /* bus->cpu memory mapping offset */ + unsigned long io_offset; /* bus->cpu IO mapping offset */ + struct pci_bus *bus; /* PCI bus */ +- struct resource *resource[3]; /* Primary PCI bus resources */ ++ struct list_head resources; /* root bus resources (apertures) */ + /* Bridge swizzling */ + u8 (*swizzle)(struct pci_dev *, u8 *); + /* IRQ mapping */ +--- a/arch/arm/kernel/bios32.c ++++ b/arch/arm/kernel/bios32.c +@@ -316,21 +316,6 @@ pdev_fixup_device_resources(struct pci_s + } + } + +-static void __devinit +-pbus_assign_bus_resources(struct pci_bus *bus, struct pci_sys_data *root) +-{ +- struct pci_dev *dev = bus->self; +- int i; +- +- if (!dev) { +- /* +- * Assign root bus resources. +- */ +- for (i = 0; i < 3; i++) +- bus->resource[i] = root->resource[i]; +- } +-} +- + /* + * pcibios_fixup_bus - Called after each bus is probed, + * but before its children are examined. +@@ -341,8 +326,6 @@ void pcibios_fixup_bus(struct pci_bus *b + struct pci_dev *dev; + u16 features = PCI_COMMAND_SERR | PCI_COMMAND_PARITY | PCI_COMMAND_FAST_BACK; + +- pbus_assign_bus_resources(bus, root); +- + /* + * Walk the devices on this bus, working out what we can + * and can't support. +@@ -508,12 +491,18 @@ static void __init pcibios_init_hw(struc + sys->busnr = busnr; + sys->swizzle = hw->swizzle; + sys->map_irq = hw->map_irq; +- sys->resource[0] = &ioport_resource; +- sys->resource[1] = &iomem_resource; ++ INIT_LIST_HEAD(&sys->resources); + + ret = hw->setup(nr, sys); + + if (ret > 0) { ++ if (list_empty(&sys->resources)) { ++ pci_add_resource(&sys->resources, ++ &ioport_resource); ++ pci_add_resource(&sys->resources, ++ &iomem_resource); ++ } ++ + sys->bus = hw->scan(nr, sys); + + if (!sys->bus) +--- a/arch/arm/mach-cns3xxx/pcie.c ++++ b/arch/arm/mach-cns3xxx/pcie.c +@@ -151,13 +151,12 @@ static int cns3xxx_pci_setup(int nr, str + struct cns3xxx_pcie *cnspci = sysdata_to_cnspci(sys); + struct resource *res_io = &cnspci->res_io; + struct resource *res_mem = &cnspci->res_mem; +- struct resource **sysres = sys->resource; + + BUG_ON(request_resource(&iomem_resource, res_io) || + request_resource(&iomem_resource, res_mem)); + +- sysres[0] = res_io; +- sysres[1] = res_mem; ++ pci_add_resource(&sys->resources, res_io); ++ pci_add_resource(&sys->resources, res_mem); + + return 1; + } +@@ -169,7 +168,8 @@ static struct pci_ops cns3xxx_pcie_ops = + + static struct pci_bus *cns3xxx_pci_scan_bus(int nr, struct pci_sys_data *sys) + { +- return pci_scan_bus(sys->busnr, &cns3xxx_pcie_ops, sys); ++ return pci_scan_root_bus(NULL, sys->busnr, &cns3xxx_pcie_ops, sys, ++ &sys->resources); + } + + static int cns3xxx_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +--- a/arch/arm/mach-dove/pcie.c ++++ b/arch/arm/mach-dove/pcie.c +@@ -69,7 +69,7 @@ static int __init dove_pcie_setup(int nr + pp->res[0].flags = IORESOURCE_IO; + if (request_resource(&ioport_resource, &pp->res[0])) + panic("Request PCIe IO resource failed\n"); +- sys->resource[0] = &pp->res[0]; ++ pci_add_resource(&sys->resources, &pp->res[0]); + + /* + * IORESOURCE_MEM +@@ -88,9 +88,7 @@ static int __init dove_pcie_setup(int nr + pp->res[1].flags = IORESOURCE_MEM; + if (request_resource(&iomem_resource, &pp->res[1])) + panic("Request PCIe Memory resource failed\n"); +- sys->resource[1] = &pp->res[1]; +- +- sys->resource[2] = NULL; ++ pci_add_resource(&sys->resources, &pp->res[1]); + + return 1; + } +@@ -184,7 +182,8 @@ dove_pcie_scan_bus(int nr, struct pci_sy + struct pci_bus *bus; + + if (nr < num_pcie_ports) { +- bus = pci_scan_bus(sys->busnr, &pcie_ops, sys); ++ bus = pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys, ++ &sys->resources); + } else { + bus = NULL; + BUG(); +--- a/arch/arm/mach-footbridge/dc21285.c ++++ b/arch/arm/mach-footbridge/dc21285.c +@@ -275,9 +275,9 @@ int __init dc21285_setup(int nr, struct + allocate_resource(&iomem_resource, &res[0], 0x40000000, + 0x80000000, 0xffffffff, 0x40000000, NULL, NULL); + +- sys->resource[0] = &ioport_resource; +- sys->resource[1] = &res[0]; +- sys->resource[2] = &res[1]; ++ pci_add_resource(&sys->resources, &ioport_resource); ++ pci_add_resource(&sys->resources, &res[0]); ++ pci_add_resource(&sys->resources, &res[1]); + sys->mem_offset = DC21285_PCI_MEM; + + return 1; +@@ -285,7 +285,7 @@ int __init dc21285_setup(int nr, struct + + struct pci_bus * __init dc21285_scan_bus(int nr, struct pci_sys_data *sys) + { +- return pci_scan_bus(0, &dc21285_ops, sys); ++ return pci_scan_root_bus(NULL, 0, &dc21285_ops, sys, &sys->resources); + } + + #define dc21285_request_irq(_a, _b, _c, _d, _e) \ +--- a/arch/arm/mach-integrator/pci_v3.c ++++ b/arch/arm/mach-integrator/pci_v3.c +@@ -359,7 +359,7 @@ static struct resource pre_mem = { + .flags = IORESOURCE_MEM | IORESOURCE_PREFETCH, + }; + +-static int __init pci_v3_setup_resources(struct resource **resource) ++static int __init pci_v3_setup_resources(struct pci_sys_data *sys) + { + if (request_resource(&iomem_resource, &non_mem)) { + printk(KERN_ERR "PCI: unable to allocate non-prefetchable " +@@ -374,13 +374,13 @@ static int __init pci_v3_setup_resources + } + + /* +- * bus->resource[0] is the IO resource for this bus +- * bus->resource[1] is the mem resource for this bus +- * bus->resource[2] is the prefetch mem resource for this bus ++ * the IO resource for this bus ++ * the mem resource for this bus ++ * the prefetch mem resource for this bus + */ +- resource[0] = &ioport_resource; +- resource[1] = &non_mem; +- resource[2] = &pre_mem; ++ pci_add_resource(&sys->resources, &ioport_resource); ++ pci_add_resource(&sys->resources, &non_mem); ++ pci_add_resource(&sys->resources, &pre_mem); + + return 1; + } +@@ -481,7 +481,7 @@ int __init pci_v3_setup(int nr, struct p + + if (nr == 0) { + sys->mem_offset = PHYS_PCI_MEM_BASE; +- ret = pci_v3_setup_resources(sys->resource); ++ ret = pci_v3_setup_resources(sys); + } + + return ret; +@@ -489,7 +489,8 @@ int __init pci_v3_setup(int nr, struct p + + struct pci_bus * __init pci_v3_scan_bus(int nr, struct pci_sys_data *sys) + { +- return pci_scan_bus(sys->busnr, &pci_v3_ops, sys); ++ return pci_scan_root_bus(NULL, sys->busnr, &pci_v3_ops, sys, ++ &sys->resources); + } + + /* +--- a/arch/arm/mach-iop13xx/pci.c ++++ b/arch/arm/mach-iop13xx/pci.c +@@ -537,14 +537,14 @@ struct pci_bus *iop13xx_scan_bus(int nr, + while(time_before(jiffies, atux_trhfa_timeout)) + udelay(100); + +- bus = pci_bus_atux = pci_scan_bus(sys->busnr, +- &iop13xx_atux_ops, +- sys); ++ bus = pci_bus_atux = pci_scan_root_bus(NULL, sys->busnr, ++ &iop13xx_atux_ops, ++ sys, &sys->resources); + break; + case IOP13XX_INIT_ATU_ATUE: +- bus = pci_bus_atue = pci_scan_bus(sys->busnr, +- &iop13xx_atue_ops, +- sys); ++ bus = pci_bus_atue = pci_scan_root_bus(NULL, sys->busnr, ++ &iop13xx_atue_ops, ++ sys, &sys->resources); + break; + } + +@@ -1084,9 +1084,8 @@ int iop13xx_pci_setup(int nr, struct pci + request_resource(&ioport_resource, &res[0]); + request_resource(&iomem_resource, &res[1]); + +- sys->resource[0] = &res[0]; +- sys->resource[1] = &res[1]; +- sys->resource[2] = NULL; ++ pci_add_resource(&sys->resources, &res[0]); ++ pci_add_resource(&sys->resources, &res[1]); + + return 1; + } +--- a/arch/arm/mach-ixp2000/enp2611.c ++++ b/arch/arm/mach-ixp2000/enp2611.c +@@ -145,7 +145,8 @@ static struct pci_ops enp2611_pci_ops = + static struct pci_bus * __init enp2611_pci_scan_bus(int nr, + struct pci_sys_data *sys) + { +- return pci_scan_bus(sys->busnr, &enp2611_pci_ops, sys); ++ return pci_scan_root_bus(NULL, sys->busnr, &enp2611_pci_ops, sys, ++ &sys->resources); + } + + static int __init enp2611_pci_map_irq(const struct pci_dev *dev, u8 slot, +--- a/arch/arm/mach-ixp2000/pci.c ++++ b/arch/arm/mach-ixp2000/pci.c +@@ -132,7 +132,8 @@ static struct pci_ops ixp2000_pci_ops = + + struct pci_bus *ixp2000_pci_scan_bus(int nr, struct pci_sys_data *sysdata) + { +- return pci_scan_bus(sysdata->busnr, &ixp2000_pci_ops, sysdata); ++ return pci_scan_root_bus(NULL, sysdata->busnr, &ixp2000_pci_ops, ++ sysdata, &sysdata->resources); + } + + +@@ -242,9 +243,8 @@ int ixp2000_pci_setup(int nr, struct pci + if (nr >= 1) + return 0; + +- sys->resource[0] = &ixp2000_pci_io_space; +- sys->resource[1] = &ixp2000_pci_mem_space; +- sys->resource[2] = NULL; ++ pci_add_resource(&sys->resources, &ixp2000_pci_io_space); ++ pci_add_resource(&sys->resources, &ixp2000_pci_mem_space); + + return 1; + } +--- a/arch/arm/mach-ixp23xx/pci.c ++++ b/arch/arm/mach-ixp23xx/pci.c +@@ -143,7 +143,8 @@ struct pci_ops ixp23xx_pci_ops = { + + struct pci_bus *ixp23xx_pci_scan_bus(int nr, struct pci_sys_data *sysdata) + { +- return pci_scan_bus(sysdata->busnr, &ixp23xx_pci_ops, sysdata); ++ return pci_scan_root_bus(NULL, sysdata->busnr, &ixp23xx_pci_ops, ++ sysdata, &sysdata->resources); + } + + int ixp23xx_pci_abort_handler(unsigned long addr, unsigned int fsr, struct pt_regs *regs) +@@ -280,9 +281,8 @@ int ixp23xx_pci_setup(int nr, struct pci + if (nr >= 1) + return 0; + +- sys->resource[0] = &ixp23xx_pci_io_space; +- sys->resource[1] = &ixp23xx_pci_mem_space; +- sys->resource[2] = NULL; ++ pci_add_resource(&sys->resources, &ixp23xx_pci_io_space); ++ pci_add_resource(&sys->resources, &ixp23xx_pci_mem_space); + + return 1; + } +--- a/arch/arm/mach-ixp4xx/common-pci.c ++++ b/arch/arm/mach-ixp4xx/common-pci.c +@@ -472,9 +472,8 @@ int ixp4xx_setup(int nr, struct pci_sys_ + request_resource(&ioport_resource, &res[0]); + request_resource(&iomem_resource, &res[1]); + +- sys->resource[0] = &res[0]; +- sys->resource[1] = &res[1]; +- sys->resource[2] = NULL; ++ pci_add_resource(&sys->resources, &res[0]); ++ pci_add_resource(&sys->resources, &res[1]); + + platform_notify = ixp4xx_pci_platform_notify; + platform_notify_remove = ixp4xx_pci_platform_notify_remove; +@@ -484,7 +483,8 @@ int ixp4xx_setup(int nr, struct pci_sys_ + + struct pci_bus * __devinit ixp4xx_scan_bus(int nr, struct pci_sys_data *sys) + { +- return pci_scan_bus(sys->busnr, &ixp4xx_ops, sys); ++ return pci_scan_root_bus(NULL, sys->busnr, &ixp4xx_ops, sys, ++ &sys->resources); + } + + int dma_set_coherent_mask(struct device *dev, u64 mask) +--- a/arch/arm/mach-kirkwood/pcie.c ++++ b/arch/arm/mach-kirkwood/pcie.c +@@ -198,9 +198,8 @@ static int __init kirkwood_pcie_setup(in + if (request_resource(&iomem_resource, &pp->res[1])) + panic("Request PCIe%d Memory resource failed\n", index); + +- sys->resource[0] = &pp->res[0]; +- sys->resource[1] = &pp->res[1]; +- sys->resource[2] = NULL; ++ pci_add_resource(&sys->resources, &pp->res[0]); ++ pci_add_resource(&sys->resources, &pp->res[1]); + sys->io_offset = 0; + + /* +@@ -236,7 +235,8 @@ kirkwood_pcie_scan_bus(int nr, struct pc + struct pci_bus *bus; + + if (nr < num_pcie_ports) { +- bus = pci_scan_bus(sys->busnr, &pcie_ops, sys); ++ bus = pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys, ++ &sys->resources); + } else { + bus = NULL; + BUG(); +--- a/arch/arm/mach-ks8695/pci.c ++++ b/arch/arm/mach-ks8695/pci.c +@@ -143,7 +143,8 @@ static struct pci_ops ks8695_pci_ops = { + + static struct pci_bus* __init ks8695_pci_scan_bus(int nr, struct pci_sys_data *sys) + { +- return pci_scan_bus(sys->busnr, &ks8695_pci_ops, sys); ++ return pci_scan_root_bus(NULL, sys->busnr, &ks8695_pci_ops, sys, ++ &sys->resources); + } + + static struct resource pci_mem = { +@@ -168,9 +169,8 @@ static int __init ks8695_pci_setup(int n + request_resource(&iomem_resource, &pci_mem); + request_resource(&ioport_resource, &pci_io); + +- sys->resource[0] = &pci_io; +- sys->resource[1] = &pci_mem; +- sys->resource[2] = NULL; ++ pci_add_resource(&sys->resources, &pci_io); ++ pci_add_resource(&sys->resources, &pci_mem); + + /* Assign and enable processor bridge */ + ks8695_local_writeconfig(PCI_BASE_ADDRESS_0, KS8695_PCIMEM_PA); +--- a/arch/arm/mach-mv78xx0/pcie.c ++++ b/arch/arm/mach-mv78xx0/pcie.c +@@ -155,9 +155,8 @@ static int __init mv78xx0_pcie_setup(int + orion_pcie_set_local_bus_nr(pp->base, sys->busnr); + orion_pcie_setup(pp->base, &mv78xx0_mbus_dram_info); + +- sys->resource[0] = &pp->res[0]; +- sys->resource[1] = &pp->res[1]; +- sys->resource[2] = NULL; ++ pci_add_resource(&sys->resources, &pp->res[0]); ++ pci_add_resource(&sys->resources, &pp->res[1]); + + return 1; + } +@@ -251,7 +250,8 @@ mv78xx0_pcie_scan_bus(int nr, struct pci + struct pci_bus *bus; + + if (nr < num_pcie_ports) { +- bus = pci_scan_bus(sys->busnr, &pcie_ops, sys); ++ bus = pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys, ++ &sys->resources); + } else { + bus = NULL; + BUG(); +--- a/arch/arm/mach-orion5x/pci.c ++++ b/arch/arm/mach-orion5x/pci.c +@@ -176,7 +176,7 @@ static int __init pcie_setup(struct pci_ + res[0].end = res[0].start + ORION5X_PCIE_IO_SIZE - 1; + if (request_resource(&ioport_resource, &res[0])) + panic("Request PCIe IO resource failed\n"); +- sys->resource[0] = &res[0]; ++ pci_add_resource(&sys->resources, &res[0]); + + /* + * IORESOURCE_MEM +@@ -187,9 +187,8 @@ static int __init pcie_setup(struct pci_ + res[1].end = res[1].start + ORION5X_PCIE_MEM_SIZE - 1; + if (request_resource(&iomem_resource, &res[1])) + panic("Request PCIe Memory resource failed\n"); +- sys->resource[1] = &res[1]; ++ pci_add_resource(&sys->resources, &res[1]); + +- sys->resource[2] = NULL; + sys->io_offset = 0; + + return 1; +@@ -505,7 +504,7 @@ static int __init pci_setup(struct pci_s + res[0].end = res[0].start + ORION5X_PCI_IO_SIZE - 1; + if (request_resource(&ioport_resource, &res[0])) + panic("Request PCI IO resource failed\n"); +- sys->resource[0] = &res[0]; ++ pci_add_resource(&sys->resources, &res[0]); + + /* + * IORESOURCE_MEM +@@ -516,9 +515,8 @@ static int __init pci_setup(struct pci_s + res[1].end = res[1].start + ORION5X_PCI_MEM_SIZE - 1; + if (request_resource(&iomem_resource, &res[1])) + panic("Request PCI Memory resource failed\n"); +- sys->resource[1] = &res[1]; ++ pci_add_resource(&sys->resources, &res[1]); + +- sys->resource[2] = NULL; + sys->io_offset = 0; + + return 1; +@@ -579,9 +577,11 @@ struct pci_bus __init *orion5x_pci_sys_s + struct pci_bus *bus; + + if (nr == 0) { +- bus = pci_scan_bus(sys->busnr, &pcie_ops, sys); ++ bus = pci_scan_root_bus(NULL, sys->busnr, &pcie_ops, sys, ++ &sys->resources); + } else if (nr == 1 && !orion5x_pci_disabled) { +- bus = pci_scan_bus(sys->busnr, &pci_ops, sys); ++ bus = pci_scan_root_bus(NULL, sys->busnr, &pci_ops, sys, ++ &sys->resources); + } else { + bus = NULL; + BUG(); +--- a/arch/arm/mach-sa1100/pci-nanoengine.c ++++ b/arch/arm/mach-sa1100/pci-nanoengine.c +@@ -131,7 +131,8 @@ static int __init pci_nanoengine_map_irq + + struct pci_bus * __init pci_nanoengine_scan_bus(int nr, struct pci_sys_data *sys) + { +- return pci_scan_bus(sys->busnr, &pci_nano_ops, sys); ++ return pci_scan_root_bus(NULL, sys->busnr, &pci_nano_ops, sys, ++ &sys->resources); + } + + static struct resource pci_io_ports = { +@@ -226,7 +227,7 @@ static struct resource pci_prefetchable_ + .flags = IORESOURCE_MEM | IORESOURCE_PREFETCH, + }; + +-static int __init pci_nanoengine_setup_resources(struct resource **resource) ++static int __init pci_nanoengine_setup_resources(struct pci_sys_data *sys) + { + if (request_resource(&ioport_resource, &pci_io_ports)) { + printk(KERN_ERR "PCI: unable to allocate io port region\n"); +@@ -243,9 +244,9 @@ static int __init pci_nanoengine_setup_r + printk(KERN_ERR "PCI: unable to allocate prefetchable\n"); + return -EBUSY; + } +- resource[0] = &pci_io_ports; +- resource[1] = &pci_non_prefetchable_memory; +- resource[2] = &pci_prefetchable_memory; ++ pci_add_resource(&sys->resources, &pci_io_ports); ++ pci_add_resource(&sys->resources, &pci_non_prefetchable_memory); ++ pci_add_resource(&sys->resources, &pci_prefetchable_memory); + + return 1; + } +@@ -260,7 +261,7 @@ int __init pci_nanoengine_setup(int nr, + if (nr == 0) { + sys->mem_offset = NANO_PCI_MEM_RW_PHYS; + sys->io_offset = 0x400; +- ret = pci_nanoengine_setup_resources(sys->resource); ++ ret = pci_nanoengine_setup_resources(sys); + /* Enable alternate memory bus master mode, see + * "Intel StrongARM SA1110 Developer's Manual", + * section 10.8, "Alternate Memory Bus Master Mode". */ +--- a/arch/arm/mach-tegra/pcie.c ++++ b/arch/arm/mach-tegra/pcie.c +@@ -409,7 +409,7 @@ static int tegra_pcie_setup(int nr, stru + pp->res[0].flags = IORESOURCE_IO; + if (request_resource(&ioport_resource, &pp->res[0])) + panic("Request PCIe IO resource failed\n"); +- sys->resource[0] = &pp->res[0]; ++ pci_add_resource(&sys->resources, &pp->res[0]); + + /* + * IORESOURCE_MEM +@@ -428,7 +428,7 @@ static int tegra_pcie_setup(int nr, stru + pp->res[1].flags = IORESOURCE_MEM; + if (request_resource(&iomem_resource, &pp->res[1])) + panic("Request PCIe Memory resource failed\n"); +- sys->resource[1] = &pp->res[1]; ++ pci_add_resource(&sys->resources, &pp->res[1]); + + /* + * IORESOURCE_MEM | IORESOURCE_PREFETCH +@@ -447,7 +447,7 @@ static int tegra_pcie_setup(int nr, stru + pp->res[2].flags = IORESOURCE_MEM | IORESOURCE_PREFETCH; + if (request_resource(&iomem_resource, &pp->res[2])) + panic("Request PCIe Prefetch Memory resource failed\n"); +- sys->resource[2] = &pp->res[2]; ++ pci_add_resource(&sys->resources, &pp->res[2]); + + return 1; + } +@@ -468,7 +468,8 @@ static struct pci_bus __init *tegra_pcie + pp = tegra_pcie.port + nr; + pp->root_bus_nr = sys->busnr; + +- return pci_scan_bus(sys->busnr, &tegra_pcie_ops, sys); ++ return pci_scan_root_bus(NULL, sys->busnr, &tegra_pcie_ops, sys, ++ &sys->resources); + } + + static struct hw_pci tegra_pcie_hw __initdata = { +--- a/arch/arm/mach-versatile/pci.c ++++ b/arch/arm/mach-versatile/pci.c +@@ -191,7 +191,7 @@ static struct resource pre_mem = { + .flags = IORESOURCE_MEM | IORESOURCE_PREFETCH, + }; + +-static int __init pci_versatile_setup_resources(struct resource **resource) ++static int __init pci_versatile_setup_resources(struct list_head *resources) + { + int ret = 0; + +@@ -215,13 +215,13 @@ static int __init pci_versatile_setup_re + } + + /* +- * bus->resource[0] is the IO resource for this bus +- * bus->resource[1] is the mem resource for this bus +- * bus->resource[2] is the prefetch mem resource for this bus ++ * the IO resource for this bus ++ * the mem resource for this bus ++ * the prefetch mem resource for this bus + */ +- resource[0] = &io_mem; +- resource[1] = &non_mem; +- resource[2] = &pre_mem; ++ pci_add_resource(resources, &io_mem); ++ pci_add_resource(resources, &non_mem); ++ pci_add_resource(resources, &pre_mem); + + goto out; + +@@ -250,7 +250,7 @@ int __init pci_versatile_setup(int nr, s + + if (nr == 0) { + sys->mem_offset = 0; +- ret = pci_versatile_setup_resources(sys->resource); ++ ret = pci_versatile_setup_resources(&sys->resources); + if (ret < 0) { + printk("pci_versatile_setup: resources... oops?\n"); + goto out; +@@ -306,7 +306,8 @@ int __init pci_versatile_setup(int nr, s + + struct pci_bus * __init pci_versatile_scan_bus(int nr, struct pci_sys_data *sys) + { +- return pci_scan_bus(sys->busnr, &pci_versatile_ops, sys); ++ return pci_scan_root_bus(NULL, sys->busnr, &pci_versatile_ops, sys, ++ &sys->resources); + } + + void __init pci_versatile_preinit(void) +--- a/arch/arm/plat-iop/pci.c ++++ b/arch/arm/plat-iop/pci.c +@@ -215,16 +215,16 @@ int iop3xx_pci_setup(int nr, struct pci_ + sys->mem_offset = IOP3XX_PCI_LOWER_MEM_PA - *IOP3XX_OMWTVR0; + sys->io_offset = IOP3XX_PCI_LOWER_IO_PA - *IOP3XX_OIOWTVR; + +- sys->resource[0] = &res[0]; +- sys->resource[1] = &res[1]; +- sys->resource[2] = NULL; ++ pci_add_resource(&sys->resources, &res[0]); ++ pci_add_resource(&sys->resources, &res[1]); + + return 1; + } + + struct pci_bus *iop3xx_pci_scan_bus(int nr, struct pci_sys_data *sys) + { +- return pci_scan_bus(sys->busnr, &iop3xx_ops, sys); ++ return pci_scan_root_bus(NULL, sys->busnr, &iop3xx_ops, sys, ++ &sys->resources); + } + + void __init iop3xx_atu_setup(void) +--- a/arch/frv/mb93090-mb00/pci-vdk.c ++++ b/arch/frv/mb93090-mb00/pci-vdk.c +@@ -327,11 +327,6 @@ void __init pcibios_fixup_bus(struct pci + printk("### PCIBIOS_FIXUP_BUS(%d)\n",bus->number); + #endif + +- if (bus->number == 0) { +- bus->resource[0] = &pci_ioport_resource; +- bus->resource[1] = &pci_iomem_resource; +- } +- + pci_read_bridge_bases(bus); + + if (bus->number == 0) { +@@ -357,6 +352,7 @@ void __init pcibios_fixup_bus(struct pci + int __init pcibios_init(void) + { + struct pci_ops *dir = NULL; ++ LIST_HEAD(resources); + + if (!mb93090_mb00_detected) + return -ENXIO; +@@ -420,7 +416,10 @@ int __init pcibios_init(void) + } + + printk("PCI: Probing PCI hardware\n"); +- pci_root_bus = pci_scan_bus(0, pci_root_ops, NULL); ++ 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); + + pcibios_irq_init(); + pcibios_fixup_peer_bridges(); +--- a/arch/ia64/pci/pci.c ++++ b/arch/ia64/pci/pci.c +@@ -134,6 +134,7 @@ alloc_pci_controller (int seg) + struct pci_root_info { + struct acpi_device *bridge; + struct pci_controller *controller; ++ struct list_head resources; + char *name; + }; + +@@ -315,24 +316,13 @@ static __devinit acpi_status add_window( + &window->resource); + } + +- return AE_OK; +-} ++ /* HP's firmware has a hack to work around a Windows bug. ++ * Ignore these tiny memory ranges */ ++ if (!((window->resource.flags & IORESOURCE_MEM) && ++ (window->resource.end - window->resource.start < 16))) ++ pci_add_resource(&info->resources, &window->resource); + +-static void __devinit +-pcibios_setup_root_windows(struct pci_bus *bus, struct pci_controller *ctrl) +-{ +- int i; +- +- pci_bus_remove_resources(bus); +- for (i = 0; i < ctrl->windows; i++) { +- struct resource *res = &ctrl->window[i].resource; +- /* HP's firmware has a hack to work around a Windows bug. +- * Ignore these tiny memory ranges */ +- if ((res->flags & IORESOURCE_MEM) && +- (res->end - res->start < 16)) +- continue; +- pci_bus_add_resource(bus, res, 0); +- } ++ return AE_OK; + } + + struct pci_bus * __devinit +@@ -343,6 +333,7 @@ pci_acpi_scan_root(struct acpi_pci_root + int bus = root->secondary.start; + struct pci_controller *controller; + unsigned int windows = 0; ++ struct pci_root_info info; + struct pci_bus *pbus; + char *name; + int pxm; +@@ -359,11 +350,10 @@ pci_acpi_scan_root(struct acpi_pci_root + controller->node = pxm_to_node(pxm); + #endif + ++ INIT_LIST_HEAD(&info.resources); + acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window, + &windows); + if (windows) { +- struct pci_root_info info; +- + controller->window = + kmalloc_node(sizeof(*controller->window) * windows, + GFP_KERNEL, controller->node); +@@ -387,8 +377,14 @@ pci_acpi_scan_root(struct acpi_pci_root + * should handle the case here, but it appears that IA64 hasn't + * such quirk. So we just ignore the case now. + */ +- pbus = pci_scan_bus_parented(NULL, bus, &pci_root_ops, controller); ++ pbus = pci_create_root_bus(NULL, bus, &pci_root_ops, controller, ++ &info.resources); ++ if (!pbus) { ++ pci_free_resource_list(&info.resources); ++ return NULL; ++ } + ++ pbus->subordinate = pci_scan_child_bus(pbus); + return pbus; + + out3: +@@ -504,14 +500,10 @@ pcibios_fixup_bus (struct pci_bus *b) + if (b->self) { + pci_read_bridge_bases(b); + pcibios_fixup_bridge_resources(b->self); +- } else { +- pcibios_setup_root_windows(b, b->sysdata); + } + list_for_each_entry(dev, &b->devices, bus_list) + pcibios_fixup_device_resources(dev); + platform_pci_fixup_bus(b); +- +- return; + } + + void __devinit +--- a/arch/microblaze/include/asm/pci-bridge.h ++++ b/arch/microblaze/include/asm/pci-bridge.h +@@ -140,7 +140,6 @@ extern void pci_process_bridge_OF_ranges + /* Allocate & free a PCI host bridge structure */ + extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev); + extern void pcibios_free_controller(struct pci_controller *phb); +-extern void pcibios_setup_phb_resources(struct pci_controller *hose); + + #endif /* __KERNEL__ */ + #endif /* _ASM_MICROBLAZE_PCI_BRIDGE_H */ +--- a/arch/microblaze/pci/pci-common.c ++++ b/arch/microblaze/pci/pci-common.c +@@ -1019,7 +1019,6 @@ static void __devinit pcibios_fixup_brid + struct pci_dev *dev = bus->self; + + pci_bus_for_each_resource(bus, res, i) { +- res = bus->resource[i]; + if (!res) + continue; + if (!res->flags) +@@ -1219,7 +1218,6 @@ void pcibios_allocate_bus_resources(stru + pci_domain_nr(bus), bus->number); + + pci_bus_for_each_resource(bus, res, i) { +- res = bus->resource[i]; + if (!res || !res->flags + || res->start > res->end || res->parent) + continue; +@@ -1510,14 +1508,18 @@ int pcibios_enable_device(struct pci_dev + return pci_enable_resources(dev, mask); + } + +-void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) ++static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose, struct list_head *resources) + { +- struct pci_bus *bus = hose->bus; + struct resource *res; + int i; + + /* Hookup PHB IO resource */ +- bus->resource[0] = res = &hose->io_resource; ++ res = &hose->io_resource; ++ ++ /* Fixup IO space offset */ ++ io_offset = (unsigned long)hose->io_base_virt - isa_io_base; ++ res->start = (res->start + io_offset) & 0xffffffffu; ++ res->end = (res->end + io_offset) & 0xffffffffu; + + if (!res->flags) { + printk(KERN_WARNING "PCI: I/O resource not set for host" +@@ -1528,6 +1530,7 @@ void __devinit pcibios_setup_phb_resourc + res->end = res->start + IO_SPACE_LIMIT; + res->flags = IORESOURCE_IO; + } ++ pci_add_resource(resources, res); + + pr_debug("PCI: PHB IO resource = %016llx-%016llx [%lx]\n", + (unsigned long long)res->start, +@@ -1550,7 +1553,7 @@ void __devinit pcibios_setup_phb_resourc + res->flags = IORESOURCE_MEM; + + } +- bus->resource[i+1] = res; ++ pci_add_resource(resources, res); + + pr_debug("PCI: PHB MEM resource %d = %016llx-%016llx [%lx]\n", + i, (unsigned long long)res->start, +@@ -1573,34 +1576,27 @@ struct device_node *pcibios_get_phb_of_n + + static void __devinit pcibios_scan_phb(struct pci_controller *hose) + { ++ LIST_HEAD(resources); + struct pci_bus *bus; + struct device_node *node = hose->dn; +- unsigned long io_offset; +- struct resource *res = &hose->io_resource; + + pr_debug("PCI: Scanning PHB %s\n", + node ? node->full_name : "<NO NAME>"); + +- /* Create an empty bus for the toplevel */ +- bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, hose); ++ pcibios_setup_phb_resources(hose, &resources); ++ ++ bus = pci_scan_root_bus(hose->parent, hose->first_busno, ++ hose->ops, hose, &resources); + if (bus == NULL) { + printk(KERN_ERR "Failed to create bus for PCI domain %04x\n", + hose->global_number); ++ pci_free_resource_list(&resources); + return; + } + bus->secondary = hose->first_busno; + hose->bus = bus; + +- /* Fixup IO space offset */ +- io_offset = (unsigned long)hose->io_base_virt - isa_io_base; +- res->start = (res->start + io_offset) & 0xffffffffu; +- res->end = (res->end + io_offset) & 0xffffffffu; +- +- /* Wire up PHB bus resources */ +- pcibios_setup_phb_resources(hose); +- +- /* Scan children */ +- hose->last_busno = bus->subordinate = pci_scan_child_bus(bus); ++ hose->last_busno = bus->subordinate; + } + + static int __init pcibios_init(void) +@@ -1614,8 +1610,6 @@ static int __init pcibios_init(void) + list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { + hose->last_busno = 0xff; + pcibios_scan_phb(hose); +- printk(KERN_INFO "calling pci_bus_add_devices()\n"); +- pci_bus_add_devices(hose->bus); + if (next_busno <= hose->last_busno) + next_busno = hose->last_busno + 1; + } +--- a/arch/mips/pci/pci.c ++++ b/arch/mips/pci/pci.c +@@ -81,6 +81,7 @@ static void __devinit pcibios_scanbus(st + { + static int next_busno; + static int need_domain_info; ++ LIST_HEAD(resources); + struct pci_bus *bus; + + if (!hose->iommu) +@@ -89,7 +90,13 @@ static void __devinit pcibios_scanbus(st + if (hose->get_busno && pci_probe_only) + next_busno = (*hose->get_busno)(); + +- bus = pci_scan_bus(next_busno, hose->pci_ops, hose); ++ pci_add_resource(&resources, hose->mem_resource); ++ pci_add_resource(&resources, hose->io_resource); ++ bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose, ++ &resources); ++ if (!bus) ++ pci_free_resource_list(&resources); ++ + hose->bus = bus; + + need_domain_info = need_domain_info || hose->index; +@@ -266,15 +273,11 @@ void __devinit pcibios_fixup_bus(struct + { + /* Propagate hose info into the subordinate devices. */ + +- struct pci_controller *hose = bus->sysdata; + struct list_head *ln; + struct pci_dev *dev = bus->self; + +- if (!dev) { +- bus->resource[0] = hose->io_resource; +- bus->resource[1] = hose->mem_resource; +- } else if (pci_probe_only && +- (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) { ++ if (pci_probe_only && dev && ++ (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) { + pci_read_bridge_bases(bus); + pcibios_fixup_device_resources(dev, bus); + } +--- a/arch/mn10300/unit-asb2305/pci.c ++++ b/arch/mn10300/unit-asb2305/pci.c +@@ -380,11 +380,6 @@ void __devinit pcibios_fixup_bus(struct + { + struct pci_dev *dev; + +- if (bus->number == 0) { +- bus->resource[0] = &pci_ioport_resource; +- bus->resource[1] = &pci_iomem_resource; +- } +- + if (bus->self) { + pci_read_bridge_bases(bus); + pcibios_fixup_device_resources(bus->self); +@@ -402,6 +397,8 @@ void __devinit pcibios_fixup_bus(struct + */ + static int __init pcibios_init(void) + { ++ LIST_HEAD(resources); ++ + ioport_resource.start = 0xA0000000; + ioport_resource.end = 0xDFFFFFFF; + iomem_resource.start = 0xA0000000; +@@ -423,7 +420,10 @@ static int __init pcibios_init(void) + printk(KERN_INFO "PCI: Probing PCI hardware [mempage %08x]\n", + MEM_PAGING_REG); + +- pci_root_bus = pci_scan_bus(0, &pci_direct_ampci, NULL); ++ pci_add_resource(&resources, &pci_ioport_resource); ++ pci_add_resource(&resources, &pci_iomem_resource); ++ pci_root_bus = pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL, ++ &resources); + + pcibios_irq_init(); + pcibios_fixup_irqs(); +--- a/arch/powerpc/include/asm/pci-bridge.h ++++ b/arch/powerpc/include/asm/pci-bridge.h +@@ -222,7 +222,6 @@ extern void pci_process_bridge_OF_ranges + /* Allocate & free a PCI host bridge structure */ + extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev); + extern void pcibios_free_controller(struct pci_controller *phb); +-extern void pcibios_setup_phb_resources(struct pci_controller *hose); + + #ifdef CONFIG_PCI + extern int pcibios_vaddr_is_ioport(void __iomem *address); +--- a/arch/powerpc/kernel/pci-common.c ++++ b/arch/powerpc/kernel/pci-common.c +@@ -1555,14 +1555,13 @@ int pcibios_enable_device(struct pci_dev + return pci_enable_resources(dev, mask); + } + +-void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) ++static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose, struct list_head *resources) + { +- struct pci_bus *bus = hose->bus; + struct resource *res; + int i; + + /* Hookup PHB IO resource */ +- bus->resource[0] = res = &hose->io_resource; ++ res = &hose->io_resource; + + if (!res->flags) { + printk(KERN_WARNING "PCI: I/O resource not set for host" +@@ -1580,6 +1579,7 @@ void __devinit pcibios_setup_phb_resourc + (unsigned long long)res->start, + (unsigned long long)res->end, + (unsigned long)res->flags); ++ pci_add_resource(resources, res); + + /* Hookup PHB Memory resources */ + for (i = 0; i < 3; ++i) { +@@ -1597,12 +1597,12 @@ void __devinit pcibios_setup_phb_resourc + res->flags = IORESOURCE_MEM; + #endif /* CONFIG_PPC32 */ + } +- bus->resource[i+1] = res; + + pr_debug("PCI: PHB MEM resource %d = %016llx-%016llx [%lx]\n", i, + (unsigned long long)res->start, + (unsigned long long)res->end, + (unsigned long)res->flags); ++ pci_add_resource(resources, res); + } + + pr_debug("PCI: PHB MEM offset = %016llx\n", +@@ -1696,6 +1696,7 @@ struct device_node *pcibios_get_phb_of_n + */ + void __devinit pcibios_scan_phb(struct pci_controller *hose) + { ++ LIST_HEAD(resources); + struct pci_bus *bus; + struct device_node *node = hose->dn; + int mode; +@@ -1703,22 +1704,24 @@ void __devinit pcibios_scan_phb(struct p + pr_debug("PCI: Scanning PHB %s\n", + node ? node->full_name : "<NO NAME>"); + ++ /* Get some IO space for the new PHB */ ++ pcibios_setup_phb_io_space(hose); ++ ++ /* Wire up PHB bus resources */ ++ pcibios_setup_phb_resources(hose, &resources); ++ + /* Create an empty bus for the toplevel */ +- bus = pci_create_bus(hose->parent, hose->first_busno, hose->ops, hose); ++ bus = pci_create_root_bus(hose->parent, hose->first_busno, ++ hose->ops, hose, &resources); + if (bus == NULL) { + pr_err("Failed to create bus for PCI domain %04x\n", + hose->global_number); ++ pci_free_resource_list(&resources); + return; + } + bus->secondary = hose->first_busno; + hose->bus = bus; + +- /* Get some IO space for the new PHB */ +- pcibios_setup_phb_io_space(hose); +- +- /* Wire up PHB bus resources */ +- pcibios_setup_phb_resources(hose); +- + /* Get probe mode and perform scan */ + mode = PCI_PROBE_NORMAL; + if (node && ppc_md.pci_probe_mode) +--- a/arch/powerpc/kernel/pci_64.c ++++ b/arch/powerpc/kernel/pci_64.c +@@ -131,30 +131,13 @@ EXPORT_SYMBOL_GPL(pcibios_unmap_io_space + + #endif /* CONFIG_HOTPLUG */ + +-int __devinit pcibios_map_io_space(struct pci_bus *bus) ++static int __devinit pcibios_map_phb_io_space(struct pci_controller *hose) + { + struct vm_struct *area; + unsigned long phys_page; + unsigned long size_page; + unsigned long io_virt_offset; +- struct pci_controller *hose; +- +- WARN_ON(bus == NULL); + +- /* If this not a PHB, nothing to do, page tables still exist and +- * thus HPTEs will be faulted in when needed +- */ +- if (bus->self) { +- pr_debug("IO mapping for PCI-PCI bridge %s\n", +- pci_name(bus->self)); +- pr_debug(" virt=0x%016llx...0x%016llx\n", +- bus->resource[0]->start + _IO_BASE, +- bus->resource[0]->end + _IO_BASE); +- return 0; +- } +- +- /* Get the host bridge */ +- hose = pci_bus_to_host(bus); + phys_page = _ALIGN_DOWN(hose->io_base_phys, PAGE_SIZE); + size_page = _ALIGN_UP(hose->pci_io_size, PAGE_SIZE); + +@@ -198,11 +181,30 @@ int __devinit pcibios_map_io_space(struc + + return 0; + } ++ ++int __devinit pcibios_map_io_space(struct pci_bus *bus) ++{ ++ WARN_ON(bus == NULL); ++ ++ /* If this not a PHB, nothing to do, page tables still exist and ++ * thus HPTEs will be faulted in when needed ++ */ ++ if (bus->self) { ++ pr_debug("IO mapping for PCI-PCI bridge %s\n", ++ pci_name(bus->self)); ++ pr_debug(" virt=0x%016llx...0x%016llx\n", ++ bus->resource[0]->start + _IO_BASE, ++ bus->resource[0]->end + _IO_BASE); ++ return 0; ++ } ++ ++ return pcibios_map_phb_io_space(pci_bus_to_host(bus)); ++} + EXPORT_SYMBOL_GPL(pcibios_map_io_space); + + void __devinit pcibios_setup_phb_io_space(struct pci_controller *hose) + { +- pcibios_map_io_space(hose->bus); ++ pcibios_map_phb_io_space(hose); + } + + #define IOBASE_BRIDGE_NUMBER 0 +--- a/arch/sh/drivers/pci/pci.c ++++ b/arch/sh/drivers/pci/pci.c +@@ -36,9 +36,15 @@ static void __devinit pcibios_scanbus(st + { + static int next_busno; + static int need_domain_info; ++ LIST_HEAD(resources); ++ int i; + struct pci_bus *bus; + +- bus = pci_scan_bus(next_busno, hose->pci_ops, hose); ++ for (i = 0; i < hose->nr_resources; i++) ++ pci_add_resource(&resources, hose->resources + i); ++ ++ bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose, ++ &resources); + hose->bus = bus; + + need_domain_info = need_domain_info || hose->index; +@@ -55,6 +61,8 @@ static void __devinit pcibios_scanbus(st + pci_bus_size_bridges(bus); + pci_bus_assign_resources(bus); + pci_enable_bridges(bus); ++ } else { ++ pci_free_resource_list(&resources); + } + } + +@@ -162,16 +170,8 @@ static void pcibios_fixup_device_resourc + */ + void __devinit pcibios_fixup_bus(struct pci_bus *bus) + { +- struct pci_dev *dev = bus->self; ++ struct pci_dev *dev; + struct list_head *ln; +- struct pci_channel *hose = bus->sysdata; +- +- if (!dev) { +- int i; +- +- for (i = 0; i < hose->nr_resources; i++) +- bus->resource[i] = hose->resources + i; +- } + + for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) { + dev = pci_dev_b(ln); +--- a/arch/sparc/kernel/leon_pci.c ++++ b/arch/sparc/kernel/leon_pci.c +@@ -19,22 +19,22 @@ + */ + void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info) + { ++ LIST_HEAD(resources); + struct pci_bus *root_bus; + +- root_bus = pci_scan_bus_parented(&ofdev->dev, 0, info->ops, info); +- if (root_bus) { +- root_bus->resource[0] = &info->io_space; +- root_bus->resource[1] = &info->mem_space; +- root_bus->resource[2] = NULL; +- +- /* Init all PCI devices into PCI tree */ +- pci_bus_add_devices(root_bus); ++ pci_add_resource(&resources, &info->io_space); ++ pci_add_resource(&resources, &info->mem_space); + ++ root_bus = pci_scan_root_bus(&ofdev->dev, 0, info->ops, info, ++ &resources); ++ if (root_bus) { + /* Setup IRQs of all devices using custom routines */ + pci_fixup_irqs(pci_common_swizzle, info->map_irq); + + /* Assign devices with resources */ + pci_assign_unassigned_resources(); ++ } else { ++ pci_free_resource_list(&resources); + } + } + +@@ -83,15 +83,6 @@ void __devinit pcibios_fixup_bus(struct + int i, has_io, has_mem; + u16 cmd; + +- /* Generic PCI bus probing sets these to point at +- * &io{port,mem}_resouce which is wrong for us. +- */ +- if (pbus->self == NULL) { +- pbus->resource[0] = &info->io_space; +- pbus->resource[1] = &info->mem_space; +- pbus->resource[2] = NULL; +- } +- + list_for_each_entry(dev, &pbus->devices, bus_list) { + /* + * We can not rely on that the bootloader has enabled I/O +--- a/arch/sparc/kernel/pci.c ++++ b/arch/sparc/kernel/pci.c +@@ -685,23 +685,25 @@ static void __devinit pci_bus_register_o + struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm, + struct device *parent) + { ++ LIST_HEAD(resources); + struct device_node *node = pbm->op->dev.of_node; + struct pci_bus *bus; + + printk("PCI: Scanning PBM %s\n", node->full_name); + +- bus = pci_create_bus(parent, pbm->pci_first_busno, pbm->pci_ops, pbm); ++ pci_add_resource(&resources, &pbm->io_space); ++ pci_add_resource(&resources, &pbm->mem_space); ++ bus = pci_create_root_bus(parent, pbm->pci_first_busno, pbm->pci_ops, ++ pbm, &resources); + if (!bus) { + printk(KERN_ERR "Failed to create bus for %s\n", + node->full_name); ++ pci_free_resource_list(&resources); + return NULL; + } + bus->secondary = pbm->pci_first_busno; + bus->subordinate = pbm->pci_last_busno; + +- bus->resource[0] = &pbm->io_space; +- bus->resource[1] = &pbm->mem_space; +- + pci_of_scan_bus(pbm, node, bus); + pci_bus_add_devices(bus); + pci_bus_register_of_sysfs(bus); +@@ -711,13 +713,6 @@ struct pci_bus * __devinit pci_scan_one_ + + void __devinit pcibios_fixup_bus(struct pci_bus *pbus) + { +- struct pci_pbm_info *pbm = pbus->sysdata; +- +- /* Generic PCI bus probing sets these to point at +- * &io{port,mem}_resouce which is wrong for us. +- */ +- pbus->resource[0] = &pbm->io_space; +- pbus->resource[1] = &pbm->mem_space; + } + + void pcibios_update_irq(struct pci_dev *pdev, int irq) +--- a/arch/x86/include/asm/topology.h ++++ b/arch/x86/include/asm/topology.h +@@ -174,7 +174,7 @@ static inline void arch_fix_phys_package + } + + struct pci_bus; +-void x86_pci_root_bus_res_quirks(struct pci_bus *b); ++void x86_pci_root_bus_resources(int bus, struct list_head *resources); + + #ifdef CONFIG_SMP + #define mc_capable() ((boot_cpu_data.x86_max_cores > 1) && \ +--- a/arch/x86/pci/acpi.c ++++ b/arch/x86/pci/acpi.c +@@ -12,7 +12,7 @@ struct pci_root_info { + char *name; + unsigned int res_num; + struct resource *res; +- struct pci_bus *bus; ++ struct list_head *resources; + int busnum; + }; + +@@ -261,23 +261,20 @@ static void add_resources(struct pci_roo + "ignoring host bridge window %pR (conflicts with %s %pR)\n", + res, conflict->name, conflict); + else +- pci_bus_add_resource(info->bus, res, 0); ++ pci_add_resource(info->resources, res); + } + } + + static void + get_current_resources(struct acpi_device *device, int busnum, +- int domain, struct pci_bus *bus) ++ int domain, struct list_head *resources) + { + struct pci_root_info info; + size_t size; + +- if (pci_use_crs) +- pci_bus_remove_resources(bus); +- + info.bridge = device; +- info.bus = bus; + info.res_num = 0; ++ info.resources = resources; + acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_resource, + &info); + if (!info.res_num) +@@ -286,7 +283,7 @@ get_current_resources(struct acpi_device + size = sizeof(*info.res) * info.res_num; + info.res = kmalloc(size, GFP_KERNEL); + if (!info.res) +- goto res_alloc_fail; ++ return; + + info.name = kasprintf(GFP_KERNEL, "PCI Bus %04x:%02x", domain, busnum); + if (!info.name) +@@ -301,8 +298,6 @@ get_current_resources(struct acpi_device + + name_alloc_fail: + kfree(info.res); +-res_alloc_fail: +- return; + } + + struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) +@@ -310,6 +305,7 @@ struct pci_bus * __devinit pci_acpi_scan + struct acpi_device *device = root->device; + int domain = root->segment; + int busnum = root->secondary.start; ++ LIST_HEAD(resources); + struct pci_bus *bus; + struct pci_sysdata *sd; + int node; +@@ -364,11 +360,15 @@ struct pci_bus * __devinit pci_acpi_scan + memcpy(bus->sysdata, sd, sizeof(*sd)); + kfree(sd); + } else { +- bus = pci_create_bus(NULL, busnum, &pci_root_ops, sd); +- if (bus) { +- get_current_resources(device, busnum, domain, bus); ++ get_current_resources(device, busnum, domain, &resources); ++ if (list_empty(&resources)) ++ x86_pci_root_bus_resources(busnum, &resources); ++ bus = pci_create_root_bus(NULL, busnum, &pci_root_ops, sd, ++ &resources); ++ if (bus) + bus->subordinate = pci_scan_child_bus(bus); +- } ++ else ++ pci_free_resource_list(&resources); + } + + /* After the PCI-E bus has been walked and all devices discovered, +--- a/arch/x86/pci/broadcom_bus.c ++++ b/arch/x86/pci/broadcom_bus.c +@@ -15,10 +15,11 @@ + #include <linux/pci.h> + #include <linux/init.h> + #include <asm/pci_x86.h> ++#include <asm/pci-direct.h> + + #include "bus_numa.h" + +-static void __devinit cnb20le_res(struct pci_dev *dev) ++static void __init cnb20le_res(u8 bus, u8 slot, u8 func) + { + struct pci_root_info *info; + struct resource res; +@@ -26,21 +27,12 @@ static void __devinit cnb20le_res(struct + u8 fbus, lbus; + int i; + +-#ifdef CONFIG_ACPI +- /* +- * We should get host bridge information from ACPI unless the BIOS +- * doesn't support it. +- */ +- if (acpi_os_get_root_pointer()) +- return; +-#endif +- + info = &pci_root_info[pci_root_num]; + pci_root_num++; + + /* read the PCI bus numbers */ +- pci_read_config_byte(dev, 0x44, &fbus); +- pci_read_config_byte(dev, 0x45, &lbus); ++ fbus = read_pci_config_byte(bus, slot, func, 0x44); ++ lbus = read_pci_config_byte(bus, slot, func, 0x45); + info->bus_min = fbus; + info->bus_max = lbus; + +@@ -59,8 +51,8 @@ static void __devinit cnb20le_res(struct + } + + /* read the non-prefetchable memory window */ +- pci_read_config_word(dev, 0xc0, &word1); +- pci_read_config_word(dev, 0xc2, &word2); ++ word1 = read_pci_config_16(bus, slot, func, 0xc0); ++ word2 = read_pci_config_16(bus, slot, func, 0xc2); + if (word1 != word2) { + res.start = (word1 << 16) | 0x0000; + res.end = (word2 << 16) | 0xffff; +@@ -69,8 +61,8 @@ static void __devinit cnb20le_res(struct + } + + /* read the prefetchable memory window */ +- pci_read_config_word(dev, 0xc4, &word1); +- pci_read_config_word(dev, 0xc6, &word2); ++ word1 = read_pci_config_16(bus, slot, func, 0xc4); ++ word2 = read_pci_config_16(bus, slot, func, 0xc6); + if (word1 != word2) { + res.start = (word1 << 16) | 0x0000; + res.end = (word2 << 16) | 0xffff; +@@ -79,8 +71,8 @@ static void __devinit cnb20le_res(struct + } + + /* read the IO port window */ +- pci_read_config_word(dev, 0xd0, &word1); +- pci_read_config_word(dev, 0xd2, &word2); ++ word1 = read_pci_config_16(bus, slot, func, 0xd0); ++ word2 = read_pci_config_16(bus, slot, func, 0xd2); + if (word1 != word2) { + res.start = word1; + res.end = word2; +@@ -92,13 +84,37 @@ static void __devinit cnb20le_res(struct + res.start = fbus; + res.end = lbus; + res.flags = IORESOURCE_BUS; +- dev_info(&dev->dev, "CNB20LE PCI Host Bridge (domain %04x %pR)\n", +- pci_domain_nr(dev->bus), &res); ++ printk(KERN_INFO "CNB20LE PCI Host Bridge (domain 0000 %pR)\n", &res); + + for (i = 0; i < info->res_num; i++) +- dev_info(&dev->dev, "host bridge window %pR\n", &info->res[i]); ++ printk(KERN_INFO "host bridge window %pR\n", &info->res[i]); + } + +-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_LE, +- cnb20le_res); ++static int __init broadcom_postcore_init(void) ++{ ++ u8 bus = 0, slot = 0; ++ u32 id; ++ u16 vendor, device; ++ ++#ifdef CONFIG_ACPI ++ /* ++ * We should get host bridge information from ACPI unless the BIOS ++ * doesn't support it. ++ */ ++ if (acpi_os_get_root_pointer()) ++ return 0; ++#endif ++ ++ id = read_pci_config(bus, slot, 0, PCI_VENDOR_ID); ++ vendor = id & 0xffff; ++ device = (id >> 16) & 0xffff; ++ ++ if (vendor == PCI_VENDOR_ID_SERVERWORKS && ++ device == PCI_DEVICE_ID_SERVERWORKS_LE) { ++ cnb20le_res(bus, slot, 0); ++ cnb20le_res(bus, slot, 1); ++ } ++ return 0; ++} + ++postcore_initcall(broadcom_postcore_init); +--- a/arch/x86/pci/bus_numa.c ++++ b/arch/x86/pci/bus_numa.c +@@ -7,45 +7,50 @@ + int pci_root_num; + struct pci_root_info pci_root_info[PCI_ROOT_NR]; + +-void x86_pci_root_bus_res_quirks(struct pci_bus *b) ++void x86_pci_root_bus_resources(int bus, struct list_head *resources) + { + int i; + int j; + struct pci_root_info *info; + +- /* don't go for it if _CRS is used already */ +- if (b->resource[0] != &ioport_resource || +- b->resource[1] != &iomem_resource) +- return; +- + if (!pci_root_num) +- return; ++ goto default_resources; + + for (i = 0; i < pci_root_num; i++) { +- if (pci_root_info[i].bus_min == b->number) ++ if (pci_root_info[i].bus_min == bus) + break; + } + + if (i == pci_root_num) +- return; ++ goto default_resources; + +- printk(KERN_DEBUG "PCI: peer root bus %02x res updated from pci conf\n", +- b->number); ++ printk(KERN_DEBUG "PCI: root bus %02x: hardware-probed resources\n", ++ bus); + +- pci_bus_remove_resources(b); + info = &pci_root_info[i]; + for (j = 0; j < info->res_num; j++) { + struct resource *res; + struct resource *root; + + res = &info->res[j]; +- pci_bus_add_resource(b, res, 0); ++ pci_add_resource(resources, res); + if (res->flags & IORESOURCE_IO) + root = &ioport_resource; + else + root = &iomem_resource; + insert_resource(root, res); + } ++ return; ++ ++default_resources: ++ /* ++ * We don't have any host bridge aperture information from the ++ * "native host bridge drivers," e.g., amd_bus or broadcom_bus, ++ * so fall back to the defaults historically used by pci_create_bus(). ++ */ ++ printk(KERN_DEBUG "PCI: root bus %02x: using default resources\n", bus); ++ pci_add_resource(resources, &ioport_resource); ++ pci_add_resource(resources, &iomem_resource); + } + + void __devinit update_res(struct pci_root_info *info, resource_size_t start, +--- a/arch/x86/pci/common.c ++++ b/arch/x86/pci/common.c +@@ -164,9 +164,6 @@ void __devinit pcibios_fixup_bus(struct + { + struct pci_dev *dev; + +- /* root bus? */ +- if (!b->parent) +- x86_pci_root_bus_res_quirks(b); + pci_read_bridge_bases(b); + list_for_each_entry(dev, &b->devices, bus_list) + pcibios_fixup_device_resources(dev); +@@ -433,6 +430,7 @@ void __init dmi_check_pciprobe(void) + + struct pci_bus * __devinit pcibios_scan_root(int busnum) + { ++ LIST_HEAD(resources); + struct pci_bus *bus = NULL; + struct pci_sysdata *sd; + +@@ -456,9 +454,12 @@ struct pci_bus * __devinit pcibios_scan_ + sd->node = get_mp_bus_to_node(busnum); + + printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busnum); +- bus = pci_scan_bus_parented(NULL, busnum, &pci_root_ops, sd); +- if (!bus) ++ x86_pci_root_bus_resources(busnum, &resources); ++ bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, sd, &resources); ++ if (!bus) { ++ pci_free_resource_list(&resources); + kfree(sd); ++ } + + return bus; + } +@@ -639,6 +640,7 @@ int pci_ext_cfg_avail(struct pci_dev *de + + struct pci_bus * __devinit 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; + +@@ -653,9 +655,12 @@ struct pci_bus * __devinit pci_scan_bus_ + return NULL; + } + sd->node = node; +- bus = pci_scan_bus(busno, ops, sd); +- if (!bus) ++ x86_pci_root_bus_resources(busno, &resources); ++ bus = pci_scan_root_bus(NULL, busno, ops, sd, &resources); ++ if (!bus) { ++ pci_free_resource_list(&resources); + kfree(sd); ++ } + + return bus; + } +--- a/arch/x86/pci/legacy.c ++++ b/arch/x86/pci/legacy.c +@@ -31,9 +31,6 @@ int __init pci_legacy_init(void) + + printk("PCI: Probing PCI hardware\n"); + pci_root_bus = pcibios_scan_root(0); +- if (pci_root_bus) +- pci_bus_add_devices(pci_root_bus); +- + return 0; + } + +--- a/arch/x86/pci/numaq_32.c ++++ b/arch/x86/pci/numaq_32.c +@@ -153,8 +153,6 @@ int __init pci_numaq_init(void) + raw_pci_ops = &pci_direct_conf1_mq; + + pci_root_bus = pcibios_scan_root(0); +- if (pci_root_bus) +- pci_bus_add_devices(pci_root_bus); + if (num_online_nodes() > 1) + for_each_online_node(quad) { + if (quad == 0) +--- a/arch/xtensa/kernel/pci.c ++++ b/arch/xtensa/kernel/pci.c +@@ -134,9 +134,46 @@ struct pci_controller * __init pcibios_a + return pci_ctrl; + } + ++static void __init pci_controller_apertures(struct pci_controller *pci_ctrl, ++ struct list_head *resources) ++{ ++ struct resource *res; ++ unsigned long io_offset; ++ int i; ++ ++ io_offset = (unsigned long)pci_ctrl->io_space.base; ++ res = &pci_ctrl->io_resource; ++ if (!res->flags) { ++ if (io_offset) ++ printk (KERN_ERR "I/O resource not set for host" ++ " bridge %d\n", pci_ctrl->index); ++ res->start = 0; ++ res->end = IO_SPACE_LIMIT; ++ res->flags = IORESOURCE_IO; ++ } ++ res->start += io_offset; ++ res->end += io_offset; ++ pci_add_resource(resources, res); ++ ++ for (i = 0; i < 3; i++) { ++ res = &pci_ctrl->mem_resources[i]; ++ if (!res->flags) { ++ if (i > 0) ++ continue; ++ printk(KERN_ERR "Memory resource not set for " ++ "host bridge %d\n", pci_ctrl->index); ++ res->start = 0; ++ res->end = ~0U; ++ res->flags = IORESOURCE_MEM; ++ } ++ pci_add_resource(resources, res); ++ } ++} ++ + static int __init pcibios_init(void) + { + struct pci_controller *pci_ctrl; ++ struct list_head resources; + struct pci_bus *bus; + int next_busno = 0, i; + +@@ -145,19 +182,10 @@ static int __init pcibios_init(void) + /* Scan all of the recorded PCI controllers. */ + for (pci_ctrl = pci_ctrl_head; pci_ctrl; pci_ctrl = pci_ctrl->next) { + pci_ctrl->last_busno = 0xff; +- bus = pci_scan_bus(pci_ctrl->first_busno, pci_ctrl->ops, +- pci_ctrl); +- if (pci_ctrl->io_resource.flags) { +- unsigned long offs; +- +- offs = (unsigned long)pci_ctrl->io_space.base; +- pci_ctrl->io_resource.start += offs; +- pci_ctrl->io_resource.end += offs; +- bus->resource[0] = &pci_ctrl->io_resource; +- } +- for (i = 0; i < 3; ++i) +- if (pci_ctrl->mem_resources[i].flags) +- bus->resource[i+1] =&pci_ctrl->mem_resources[i]; ++ INIT_LIST_HEAD(&resources); ++ pci_controller_apertures(pci_ctrl, &resources); ++ bus = pci_scan_root_bus(NULL, pci_ctrl->first_busno, ++ pci_ctrl->ops, pci_ctrl, &resources); + pci_ctrl->bus = bus; + pci_ctrl->last_busno = bus->subordinate; + if (next_busno <= pci_ctrl->last_busno) +@@ -178,36 +206,7 @@ void __init pcibios_fixup_bus(struct pci + int i; + + io_offset = (unsigned long)pci_ctrl->io_space.base; +- if (bus->parent == NULL) { +- /* this is a host bridge - fill in its resources */ +- pci_ctrl->bus = bus; +- +- bus->resource[0] = res = &pci_ctrl->io_resource; +- if (!res->flags) { +- if (io_offset) +- printk (KERN_ERR "I/O resource not set for host" +- " bridge %d\n", pci_ctrl->index); +- res->start = 0; +- res->end = IO_SPACE_LIMIT; +- res->flags = IORESOURCE_IO; +- } +- res->start += io_offset; +- res->end += io_offset; +- +- for (i = 0; i < 3; i++) { +- res = &pci_ctrl->mem_resources[i]; +- if (!res->flags) { +- if (i > 0) +- continue; +- printk(KERN_ERR "Memory resource not set for " +- "host bridge %d\n", pci_ctrl->index); +- res->start = 0; +- res->end = ~0U; +- res->flags = IORESOURCE_MEM; +- } +- bus->resource[i+1] = res; +- } +- } else { ++ if (bus->parent) { + /* This is a subordinate bridge */ + pci_read_bridge_bases(bus); + +--- a/drivers/parisc/dino.c ++++ b/drivers/parisc/dino.c +@@ -562,19 +562,6 @@ dino_fixup_bus(struct pci_bus *bus) + /* Firmware doesn't set up card-mode dino, so we have to */ + if (is_card_dino(&dino_dev->hba.dev->id)) { + dino_card_setup(bus, dino_dev->hba.base_addr); +- } else if(bus->parent == NULL) { +- /* must have a dino above it, reparent the resources +- * into the dino window */ +- int i; +- struct resource *res = &dino_dev->hba.lmmio_space; +- +- bus->resource[0] = &(dino_dev->hba.io_space); +- for(i = 0; i < DINO_MAX_LMMIO_RESOURCES; i++) { +- if(res[i].flags == 0) +- break; +- bus->resource[i+1] = &res[i]; +- } +- + } else if (bus->parent) { + int i; + +@@ -927,6 +914,7 @@ static int __init dino_probe(struct pari + const char *version = "unknown"; + char *name; + int is_cujo = 0; ++ LIST_HEAD(resources); + struct pci_bus *bus; + unsigned long hpa = dev->hpa.start; + +@@ -1003,26 +991,37 @@ static int __init dino_probe(struct pari + + dev->dev.platform_data = dino_dev; + ++ pci_add_resource(&resources, &dino_dev->hba.io_space); ++ if (dino_dev->hba.lmmio_space.flags) ++ pci_add_resource(&resources, &dino_dev->hba.lmmio_space); ++ if (dino_dev->hba.elmmio_space.flags) ++ pci_add_resource(&resources, &dino_dev->hba.elmmio_space); ++ if (dino_dev->hba.gmmio_space.flags) ++ pci_add_resource(&resources, &dino_dev->hba.gmmio_space); ++ + /* + ** It's not used to avoid chicken/egg problems + ** with configuration accessor functions. + */ +- dino_dev->hba.hba_bus = bus = pci_scan_bus_parented(&dev->dev, +- dino_current_bus, &dino_cfg_ops, NULL); +- +- if(bus) { +- /* This code *depends* on scanning being single threaded +- * if it isn't, this global bus number count will fail +- */ +- dino_current_bus = bus->subordinate + 1; +- pci_bus_assign_resources(bus); +- pci_bus_add_devices(bus); +- } else { ++ dino_dev->hba.hba_bus = bus = pci_create_root_bus(&dev->dev, ++ dino_current_bus, &dino_cfg_ops, NULL, &resources); ++ if (!bus) { + printk(KERN_ERR "ERROR: failed to scan PCI bus on %s (duplicate bus number %d?)\n", + dev_name(&dev->dev), dino_current_bus); ++ pci_free_resource_list(&resources); + /* increment the bus number in case of duplicates */ + dino_current_bus++; ++ return 0; + } ++ ++ bus->subordinate = pci_scan_child_bus(bus); ++ ++ /* This code *depends* on scanning being single threaded ++ * if it isn't, this global bus number count will fail ++ */ ++ dino_current_bus = bus->subordinate + 1; ++ pci_bus_assign_resources(bus); ++ pci_bus_add_devices(bus); + return 0; + } + +--- a/drivers/parisc/lba_pci.c ++++ b/drivers/parisc/lba_pci.c +@@ -653,7 +653,7 @@ lba_fixup_bus(struct pci_bus *bus) + } + } else { + /* Host-PCI Bridge */ +- int err, i; ++ int err; + + DBG("lba_fixup_bus() %s [%lx/%lx]/%lx\n", + ldev->hba.io_space.name, +@@ -669,9 +669,6 @@ lba_fixup_bus(struct pci_bus *bus) + lba_dump_res(&ioport_resource, 2); + BUG(); + } +- /* advertize Host bridge resources to PCI bus */ +- bus->resource[0] = &(ldev->hba.io_space); +- i = 1; + + if (ldev->hba.elmmio_space.start) { + err = request_resource(&iomem_resource, +@@ -685,35 +682,17 @@ lba_fixup_bus(struct pci_bus *bus) + + /* lba_dump_res(&iomem_resource, 2); */ + /* BUG(); */ +- } else +- bus->resource[i++] = &(ldev->hba.elmmio_space); ++ } + } + +- +- /* Overlaps with elmmio can (and should) fail here. +- * We will prune (or ignore) the distributed range. +- * +- * FIXME: SBA code should register all elmmio ranges first. +- * that would take care of elmmio ranges routed +- * to a different rope (already discovered) from +- * getting registered *after* LBA code has already +- * registered it's distributed lmmio range. +- */ +- if (truncate_pat_collision(&iomem_resource, +- &(ldev->hba.lmmio_space))) { +- +- printk(KERN_WARNING "LBA: lmmio_space [%lx/%lx] duplicate!\n", +- (long)ldev->hba.lmmio_space.start, +- (long)ldev->hba.lmmio_space.end); +- } else { ++ if (ldev->hba.lmmio_space.flags) { + err = request_resource(&iomem_resource, &(ldev->hba.lmmio_space)); + if (err < 0) { + printk(KERN_ERR "FAILED: lba_fixup_bus() request for " + "lmmio_space [%lx/%lx]\n", + (long)ldev->hba.lmmio_space.start, + (long)ldev->hba.lmmio_space.end); +- } else +- bus->resource[i++] = &(ldev->hba.lmmio_space); ++ } + } + + #ifdef CONFIG_64BIT +@@ -728,7 +707,6 @@ lba_fixup_bus(struct pci_bus *bus) + lba_dump_res(&iomem_resource, 2); + BUG(); + } +- bus->resource[i++] = &(ldev->hba.gmmio_space); + } + #endif + +@@ -1404,6 +1382,7 @@ static int __init + lba_driver_probe(struct parisc_device *dev) + { + struct lba_device *lba_dev; ++ LIST_HEAD(resources); + struct pci_bus *lba_bus; + struct pci_ops *cfg_ops; + u32 func_class; +@@ -1518,10 +1497,41 @@ lba_driver_probe(struct parisc_device *d + if (lba_dev->hba.bus_num.start < lba_next_bus) + lba_dev->hba.bus_num.start = lba_next_bus; + ++ /* Overlaps with elmmio can (and should) fail here. ++ * We will prune (or ignore) the distributed range. ++ * ++ * FIXME: SBA code should register all elmmio ranges first. ++ * that would take care of elmmio ranges routed ++ * to a different rope (already discovered) from ++ * getting registered *after* LBA code has already ++ * registered it's distributed lmmio range. ++ */ ++ if (truncate_pat_collision(&iomem_resource, ++ &(lba_dev->hba.lmmio_space))) { ++ printk(KERN_WARNING "LBA: lmmio_space [%lx/%lx] duplicate!\n", ++ (long)lba_dev->hba.lmmio_space.start, ++ (long)lba_dev->hba.lmmio_space.end); ++ lba_dev->hba.lmmio_space.flags = 0; ++ } ++ ++ pci_add_resource(&resources, &lba_dev->hba.io_space); ++ if (lba_dev->hba.elmmio_space.start) ++ pci_add_resource(&resources, &lba_dev->hba.elmmio_space); ++ if (lba_dev->hba.lmmio_space.flags) ++ pci_add_resource(&resources, &lba_dev->hba.lmmio_space); ++ if (lba_dev->hba.gmmio_space.flags) ++ pci_add_resource(&resources, &lba_dev->hba.gmmio_space); ++ + dev->dev.platform_data = lba_dev; + lba_bus = lba_dev->hba.hba_bus = +- pci_scan_bus_parented(&dev->dev, lba_dev->hba.bus_num.start, +- cfg_ops, NULL); ++ pci_create_root_bus(&dev->dev, lba_dev->hba.bus_num.start, ++ cfg_ops, NULL, &resources); ++ if (!lba_bus) { ++ pci_free_resource_list(&resources); ++ return 0; ++ } ++ ++ lba_bus->subordinate = pci_scan_child_bus(lba_bus); + + /* This is in lieu of calling pci_assign_unassigned_resources() */ + if (is_pdc_pat()) { +@@ -1551,10 +1561,8 @@ lba_driver_probe(struct parisc_device *d + lba_dev->flags |= LBA_FLAG_SKIP_PROBE; + } + +- if (lba_bus) { +- lba_next_bus = lba_bus->subordinate + 1; +- pci_bus_add_devices(lba_bus); +- } ++ lba_next_bus = lba_bus->subordinate + 1; ++ pci_bus_add_devices(lba_bus); + + /* Whew! Finally done! Tell services we got this one covered. */ + return 0; +--- a/drivers/pci/bus.c ++++ b/drivers/pci/bus.c +@@ -18,6 +18,32 @@ + + #include "pci.h" + ++void pci_add_resource(struct list_head *resources, struct resource *res) ++{ ++ struct pci_bus_resource *bus_res; ++ ++ bus_res = kzalloc(sizeof(struct pci_bus_resource), GFP_KERNEL); ++ if (!bus_res) { ++ printk(KERN_ERR "PCI: can't add bus resource %pR\n", res); ++ return; ++ } ++ ++ bus_res->res = res; ++ list_add_tail(&bus_res->list, resources); ++} ++EXPORT_SYMBOL(pci_add_resource); ++ ++void pci_free_resource_list(struct list_head *resources) ++{ ++ struct pci_bus_resource *bus_res, *tmp; ++ ++ list_for_each_entry_safe(bus_res, tmp, resources, list) { ++ list_del(&bus_res->list); ++ kfree(bus_res); ++ } ++} ++EXPORT_SYMBOL(pci_free_resource_list); ++ + void pci_bus_add_resource(struct pci_bus *bus, struct resource *res, + unsigned int flags) + { +@@ -52,16 +78,12 @@ EXPORT_SYMBOL_GPL(pci_bus_resource_n); + + void pci_bus_remove_resources(struct pci_bus *bus) + { +- struct pci_bus_resource *bus_res, *tmp; + int i; + + for (i = 0; i < PCI_BRIDGE_RESOURCE_NUM; i++) + bus->resource[i] = NULL; + +- list_for_each_entry_safe(bus_res, tmp, &bus->resources, list) { +- list_del(&bus_res->list); +- kfree(bus_res); +- } ++ pci_free_resource_list(&bus->resources); + } + + /** +--- a/drivers/pci/probe.c ++++ b/drivers/pci/probe.c +@@ -1522,12 +1522,14 @@ unsigned int __devinit pci_scan_child_bu + return max; + } + +-struct pci_bus * pci_create_bus(struct device *parent, +- int bus, struct pci_ops *ops, void *sysdata) ++struct pci_bus *pci_create_root_bus(struct device *parent, int bus, ++ struct pci_ops *ops, void *sysdata, struct list_head *resources) + { +- int error; ++ int error, i; + struct pci_bus *b, *b2; + struct device *dev; ++ struct pci_bus_resource *bus_res, *n; ++ struct resource *res; + + b = pci_alloc_bus(); + if (!b) +@@ -1577,8 +1579,20 @@ struct pci_bus * pci_create_bus(struct d + pci_create_legacy_files(b); + + b->number = b->secondary = bus; +- b->resource[0] = &ioport_resource; +- b->resource[1] = &iomem_resource; ++ ++ /* Add initial resources to the bus */ ++ list_for_each_entry_safe(bus_res, n, resources, list) ++ list_move_tail(&bus_res->list, &b->resources); ++ ++ if (parent) ++ dev_info(parent, "PCI host bridge to bus %s\n", dev_name(&b->dev)); ++ else ++ printk(KERN_INFO "PCI host bridge to bus %s\n", dev_name(&b->dev)); ++ ++ pci_bus_for_each_resource(b, res, i) { ++ if (res) ++ dev_info(&b->dev, "root bus resource %pR\n", res); ++ } + + return b; + +@@ -1594,18 +1608,58 @@ err_out: + return NULL; + } + ++struct pci_bus * __devinit pci_scan_root_bus(struct device *parent, int bus, ++ struct pci_ops *ops, void *sysdata, struct list_head *resources) ++{ ++ struct pci_bus *b; ++ ++ b = pci_create_root_bus(parent, bus, ops, sysdata, resources); ++ if (!b) ++ return NULL; ++ ++ b->subordinate = pci_scan_child_bus(b); ++ pci_bus_add_devices(b); ++ return b; ++} ++EXPORT_SYMBOL(pci_scan_root_bus); ++ ++/* Deprecated; use pci_scan_root_bus() instead */ + struct pci_bus * __devinit pci_scan_bus_parented(struct device *parent, + int bus, struct pci_ops *ops, void *sysdata) + { ++ LIST_HEAD(resources); + struct pci_bus *b; + +- b = pci_create_bus(parent, bus, ops, sysdata); ++ pci_add_resource(&resources, &ioport_resource); ++ pci_add_resource(&resources, &iomem_resource); ++ b = pci_create_root_bus(parent, bus, ops, sysdata, &resources); + if (b) + b->subordinate = pci_scan_child_bus(b); ++ else ++ pci_free_resource_list(&resources); + return b; + } + EXPORT_SYMBOL(pci_scan_bus_parented); + ++struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops, ++ void *sysdata) ++{ ++ LIST_HEAD(resources); ++ struct pci_bus *b; ++ ++ pci_add_resource(&resources, &ioport_resource); ++ pci_add_resource(&resources, &iomem_resource); ++ b = pci_create_root_bus(NULL, bus, ops, sysdata, &resources); ++ if (b) { ++ b->subordinate = pci_scan_child_bus(b); ++ pci_bus_add_devices(b); ++ } else { ++ pci_free_resource_list(&resources); ++ } ++ return b; ++} ++EXPORT_SYMBOL(pci_scan_bus); ++ + #ifdef CONFIG_HOTPLUG + /** + * pci_rescan_bus - scan a PCI bus for devices. +--- a/include/linux/pci.h ++++ b/include/linux/pci.h +@@ -660,17 +660,13 @@ extern struct pci_bus *pci_find_bus(int + void pci_bus_add_devices(const struct pci_bus *bus); + struct pci_bus *pci_scan_bus_parented(struct device *parent, int bus, + struct pci_ops *ops, void *sysdata); +-static inline struct pci_bus * __devinit pci_scan_bus(int bus, struct pci_ops *ops, +- void *sysdata) +-{ +- struct pci_bus *root_bus; +- root_bus = pci_scan_bus_parented(NULL, bus, ops, sysdata); +- if (root_bus) +- pci_bus_add_devices(root_bus); +- return root_bus; +-} +-struct pci_bus *pci_create_bus(struct device *parent, int bus, +- struct pci_ops *ops, void *sysdata); ++struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata); ++struct pci_bus *pci_create_root_bus(struct device *parent, int bus, ++ struct pci_ops *ops, void *sysdata, ++ struct list_head *resources); ++struct pci_bus * __devinit pci_scan_root_bus(struct device *parent, int bus, ++ struct pci_ops *ops, void *sysdata, ++ struct list_head *resources); + struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, + int busnr); + void pcie_update_link_speed(struct pci_bus *bus, u16 link_status); +@@ -910,6 +906,8 @@ int pci_request_selected_regions_exclusi + void pci_release_selected_regions(struct pci_dev *, int); + + /* drivers/pci/bus.c */ ++void pci_add_resource(struct list_head *resources, struct resource *res); ++void pci_free_resource_list(struct list_head *resources); + void pci_bus_add_resource(struct pci_bus *bus, struct resource *res, unsigned int flags); + struct resource *pci_bus_resource_n(const struct pci_bus *bus, int n); + void pci_bus_remove_resources(struct pci_bus *bus); |