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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-11 18:50:26 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-11 18:50:26 -0800 |
| commit | 7b67e751479d50b7f84d1a3cc5216eed5e534b66 (patch) | |
| tree | a1a6746857cf65f04dde739fe271bf4143d55eaf /arch | |
| parent | 9f13a1fd452f11c18004ba2422a6384b424ec8a9 (diff) | |
| parent | 76ccc297018d25d55b789bbd508861ef1e2cdb0c (diff) | |
| download | linux-stable-7b67e751479d50b7f84d1a3cc5216eed5e534b66.tar.gz linux-stable-7b67e751479d50b7f84d1a3cc5216eed5e534b66.tar.bz2 linux-stable-7b67e751479d50b7f84d1a3cc5216eed5e534b66.zip | |
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci: (80 commits)
x86/PCI: Expand the x86_msi_ops to have a restore MSIs.
PCI: Increase resource array mask bit size in pcim_iomap_regions()
PCI: DEVICE_COUNT_RESOURCE should be equal to PCI_NUM_RESOURCES
PCI: pci_ids: add device ids for STA2X11 device (aka ConneXT)
PNP: work around Dell 1536/1546 BIOS MMCONFIG bug that breaks USB
x86/PCI: amd: factor out MMCONFIG discovery
PCI: Enable ATS at the device state restore
PCI: msi: fix imbalanced refcount of msi irq sysfs objects
PCI: kconfig: English typo in pci/pcie/Kconfig
PCI/PM/Runtime: make PCI traces quieter
PCI: remove pci_create_bus()
xtensa/PCI: convert to pci_scan_root_bus() for correct root bus resources
x86/PCI: convert to pci_create_root_bus() and pci_scan_root_bus()
x86/PCI: use pci_scan_bus() instead of pci_scan_bus_parented()
x86/PCI: read Broadcom CNB20LE host bridge info before PCI scan
sparc32, leon/PCI: convert to pci_scan_root_bus() for correct root bus resources
sparc/PCI: convert to pci_create_root_bus()
sh/PCI: convert to pci_scan_root_bus() for correct root bus resources
powerpc/PCI: convert to pci_create_root_bus()
powerpc/PCI: split PHB part out of pcibios_map_io_space()
...
Fix up conflicts in drivers/pci/msi.c and include/linux/pci_regs.h due
to the same patches being applied in other branches.
Diffstat (limited to 'arch')
67 files changed, 506 insertions, 579 deletions
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index f3cae275d3f5..8c723c1b086a 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -281,27 +281,9 @@ pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus) 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; diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c index b539ec855e1a..d1bcd7b13ebc 100644 --- a/arch/arm/common/it8152.c +++ b/arch/arm/common/it8152.c @@ -299,8 +299,8 @@ int __init it8152_pci_setup(int nr, struct pci_sys_data *sys) 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"); @@ -327,6 +327,9 @@ err0: */ unsigned int pcibios_max_latency = 255; +/* ITE bridge requires setting latency timer to avoid early bus access + termination by PCI bus master devices +*/ void pcibios_set_master(struct pci_dev *dev) { u8 lat; @@ -352,7 +355,7 @@ void pcibios_set_master(struct pci_dev *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); diff --git a/arch/arm/common/via82c505.c b/arch/arm/common/via82c505.c index 8421d39109b3..67dd2affc57a 100644 --- a/arch/arm/common/via82c505.c +++ b/arch/arm/common/via82c505.c @@ -86,7 +86,8 @@ int __init via82c505_setup(int nr, struct pci_sys_data *sys) 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; } diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h index 186efd4e05c9..d943b7d20f11 100644 --- 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 */ diff --git a/arch/arm/include/asm/pci.h b/arch/arm/include/asm/pci.h index 2b1f245db0c6..da337ba57ffd 100644 --- a/arch/arm/include/asm/pci.h +++ b/arch/arm/include/asm/pci.h @@ -31,18 +31,6 @@ static inline int pci_proc_domain(struct pci_bus *bus) } #endif /* CONFIG_PCI_DOMAINS */ -#ifdef CONFIG_PCI_HOST_ITE8152 -/* ITE bridge requires setting latency timer to avoid early bus access - termination by PIC bus mater devices -*/ -extern void pcibios_set_master(struct pci_dev *dev); -#else -static inline void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} -#endif - static inline void pcibios_penalize_isa_irq(int irq, int active) { /* We don't do dynamic PCI IRQ allocation */ diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c index b530e9116a0c..f58ba3589908 100644 --- a/arch/arm/kernel/bios32.c +++ b/arch/arm/kernel/bios32.c @@ -316,21 +316,6 @@ pdev_fixup_device_resources(struct pci_sys_data *root, struct pci_dev *dev) } } -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 *bus) 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(struct hw_pci *hw) 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) @@ -571,6 +560,13 @@ void __init pci_common_init(struct hw_pci *hw) } } +#ifndef CONFIG_PCI_HOST_ITE8152 +void pcibios_set_master(struct pci_dev *dev) +{ + /* No special bus mastering setup handling */ +} +#endif + char * __init pcibios_setup(char *str) { if (!strcmp(str, "debug")) { diff --git a/arch/arm/mach-cns3xxx/pcie.c b/arch/arm/mach-cns3xxx/pcie.c index 0f8fca48a5ed..e159d69967c9 100644 --- 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, struct pci_sys_data *sys) 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) diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c index 6c11a4df7178..52e96d397ba8 100644 --- 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, struct pci_sys_data *sys) 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, struct pci_sys_data *sys) 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_sys_data *sys) 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(); diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c index 18c32a5541d9..f685650c25d7 100644 --- 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 pci_sys_data *sys) 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 pci_sys_data *sys) 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) \ diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c index b4d8f8b8a085..3c82566acece 100644 --- 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(struct resource **resource) } /* - * 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 pci_sys_data *sys) 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 pci_sys_data *sys) 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); } /* diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c index db012fadf88c..b8f5a8736511 100644 --- 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, struct pci_sys_data *sys) 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_sys_data *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]); return 1; } diff --git a/arch/arm/mach-ixp2000/enp2611.c b/arch/arm/mach-ixp2000/enp2611.c index ee525416f0d2..e872d238cd0f 100644 --- 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, diff --git a/arch/arm/mach-ixp2000/pci.c b/arch/arm/mach-ixp2000/pci.c index f5098b306fd3..626fda435aa9 100644 --- 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_sys_data *sys) 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; } diff --git a/arch/arm/mach-ixp23xx/pci.c b/arch/arm/mach-ixp23xx/pci.c index e6be5711c700..25b5c462cea2 100644 --- 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_sys_data *sys) 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; } diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c index 8325058ef871..5eff15f24bc2 100644 --- 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_data *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_data *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) diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c index fb451bfe478b..a066a6d8d9d2 100644 --- a/arch/arm/mach-kirkwood/pcie.c +++ b/arch/arm/mach-kirkwood/pcie.c @@ -198,9 +198,8 @@ static int __init kirkwood_pcie_setup(int nr, struct pci_sys_data *sys) 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 pci_sys_data *sys) 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(); diff --git a/arch/arm/mach-ks8695/pci.c b/arch/arm/mach-ks8695/pci.c index c7c9a188d105..b26f992071df 100644 --- 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 nr, struct pci_sys_data *sys) 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); diff --git a/arch/arm/mach-mv78xx0/pcie.c b/arch/arm/mach-mv78xx0/pcie.c index 12fcb108b0e1..8459f6d7d8ca 100644 --- 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 nr, struct pci_sys_data *sys) orion_pcie_set_local_bus_nr(pp->base, sys->busnr); orion_pcie_setup(pp->base); - 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_sys_data *sys) 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(); diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c index a494c470e3e4..09a045f0c406 100644 --- a/arch/arm/mach-orion5x/pci.c +++ b/arch/arm/mach-orion5x/pci.c @@ -177,7 +177,7 @@ static int __init pcie_setup(struct pci_sys_data *sys) 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 @@ -188,9 +188,8 @@ static int __init pcie_setup(struct pci_sys_data *sys) 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; @@ -506,7 +505,7 @@ static int __init pci_setup(struct pci_sys_data *sys) 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 @@ -517,9 +516,8 @@ static int __init pci_setup(struct pci_sys_data *sys) 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; @@ -580,9 +578,11 @@ struct pci_bus __init *orion5x_pci_sys_scan_bus(int nr, struct pci_sys_data *sys 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(); diff --git a/arch/arm/mach-sa1100/pci-nanoengine.c b/arch/arm/mach-sa1100/pci-nanoengine.c index dd39fee59549..0d01ca788922 100644 --- 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(const struct pci_dev *dev, u8 slot, 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_memory = { .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_resources(struct resource **resource) 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, struct pci_sys_data *sys) 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". */ diff --git a/arch/arm/mach-tegra/pcie.c b/arch/arm/mach-tegra/pcie.c index ec63c6b2b6b5..af8b63435727 100644 --- a/arch/arm/mach-tegra/pcie.c +++ b/arch/arm/mach-tegra/pcie.c @@ -408,7 +408,7 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys) 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 @@ -427,7 +427,7 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys) 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 @@ -446,7 +446,7 @@ static int tegra_pcie_setup(int nr, struct pci_sys_data *sys) 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; } @@ -467,7 +467,8 @@ static struct pci_bus __init *tegra_pcie_scan_bus(int nr, 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 = { diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c index c898deb3ada0..90069bce23bc 100644 --- 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_resources(struct resource **resource) } /* - * 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, struct pci_sys_data *sys) 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, struct pci_sys_data *sys) 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) diff --git a/arch/arm/plat-iop/pci.c b/arch/arm/plat-iop/pci.c index 845549cbbb27..f4d40a27111e 100644 --- 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_data *sys) 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) diff --git a/arch/blackfin/include/asm/pci.h b/arch/blackfin/include/asm/pci.h index 99cae2e3bac7..74352c4597d9 100644 --- a/arch/blackfin/include/asm/pci.h +++ b/arch/blackfin/include/asm/pci.h @@ -10,10 +10,6 @@ #define PCIBIOS_MIN_IO 0x00001000 #define PCIBIOS_MIN_MEM 0x10000000 -static inline void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} static inline void pcibios_penalize_isa_irq(int irq) { /* We don't do dynamic PCI IRQ allocation */ diff --git a/arch/frv/mb93090-mb00/pci-frv.c b/arch/frv/mb93090-mb00/pci-frv.c index 6b4fb28e9f99..c28121765448 100644 --- a/arch/frv/mb93090-mb00/pci-frv.c +++ b/arch/frv/mb93090-mb00/pci-frv.c @@ -194,23 +194,3 @@ void __init pcibios_resource_survey(void) pcibios_allocate_resources(1); pcibios_assign_resources(); } - -/* - * If we set up a device for bus mastering, we need to check the latency - * timer as certain crappy BIOSes forget to set it properly. - */ -unsigned int pcibios_max_latency = 255; - -void pcibios_set_master(struct pci_dev *dev) -{ - u8 lat; - pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); - if (lat < 16) - lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency; - else if (lat > pcibios_max_latency) - lat = pcibios_max_latency; - else - return; - printk(KERN_DEBUG "PCI: Setting latency timer of device %s to %d\n", pci_name(dev), lat); - pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); -} diff --git a/arch/frv/mb93090-mb00/pci-frv.h b/arch/frv/mb93090-mb00/pci-frv.h index f3fe55914793..089eeba4f3bc 100644 --- a/arch/frv/mb93090-mb00/pci-frv.h +++ b/arch/frv/mb93090-mb00/pci-frv.h @@ -26,8 +26,6 @@ extern unsigned int __nongpreldata pci_probe; /* pci-frv.c */ -extern unsigned int pcibios_max_latency; - void pcibios_resource_survey(void); /* pci-vdk.c */ diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c index f8dd37e49535..6b0b82ff4419 100644 --- 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_bus *bus) 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_bus *bus) 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(); diff --git a/arch/h8300/include/asm/pci.h b/arch/h8300/include/asm/pci.h index cc9762091c0a..0b2acaa3dd84 100644 --- a/arch/h8300/include/asm/pci.h +++ b/arch/h8300/include/asm/pci.h @@ -9,11 +9,6 @@ #define pcibios_assign_all_busses() 0 -static inline void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} - static inline void pcibios_penalize_isa_irq(int irq, int active) { /* We don't do dynamic PCI IRQ allocation */ diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h index 127dd7be346a..279b38ae74aa 100644 --- a/arch/ia64/include/asm/pci.h +++ b/arch/ia64/include/asm/pci.h @@ -43,12 +43,6 @@ extern unsigned long ia64_max_iommu_merge_mask; #define PCI_DMA_BUS_IS_PHYS (ia64_max_iommu_merge_mask == ~0UL) static inline void -pcibios_set_master (struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} - -static inline void pcibios_penalize_isa_irq (int irq, int active) { /* We don't do dynamic PCI IRQ allocation */ diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 2c27714d7b78..f82f5d4b65fd 100644 --- 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(struct acpi_resource *res, void *data) &window->resource); } - return AE_OK; -} - -static void __devinit -pcibios_setup_root_windows(struct pci_bus *bus, struct pci_controller *ctrl) -{ - int i; + /* 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); - 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 *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 *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 *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 +500,15 @@ 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 pcibios_set_master (struct pci_dev *dev) +{ + /* No special bus mastering setup handling */ } void __devinit diff --git a/arch/microblaze/include/asm/pci-bridge.h b/arch/microblaze/include/asm/pci-bridge.h index 32764cd077c6..e9834b2991d0 100644 --- 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(struct pci_controller *hose, /* 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 */ diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h index 1dd9d6b1e275..033137628e8a 100644 --- a/arch/microblaze/include/asm/pci.h +++ b/arch/microblaze/include/asm/pci.h @@ -42,11 +42,6 @@ struct pci_dev; */ #define pcibios_assign_all_busses() 0 -static inline void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} - static inline void pcibios_penalize_isa_irq(int irq, int active) { /* We don't do dynamic PCI IRQ allocation */ diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c index 0d71b2ed8107..85f2ac1230a8 100644 --- a/arch/microblaze/pci/pci-common.c +++ b/arch/microblaze/pci/pci-common.c @@ -190,6 +190,11 @@ int pcibios_add_platform_entries(struct pci_dev *pdev) return device_create_file(&pdev->dev, &dev_attr_devspec); } +void pcibios_set_master(struct pci_dev *dev) +{ + /* No special bus mastering setup handling */ +} + char __devinit *pcibios_setup(char *str) { return str; @@ -1019,7 +1024,6 @@ static void __devinit pcibios_fixup_bridge(struct pci_bus *bus) 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 +1223,6 @@ void pcibios_allocate_bus_resources(struct pci_bus *bus) 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 +1513,18 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) 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 +1535,7 @@ void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) 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 +1558,7 @@ void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) 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 +1581,27 @@ struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus) 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 +1615,6 @@ 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; } diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c index 41af7fa2887b..fa8e378413b1 100644 --- a/arch/mips/pci/pci.c +++ b/arch/mips/pci/pci.c @@ -81,6 +81,7 @@ static void __devinit pcibios_scanbus(struct pci_controller *hose) { 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(struct pci_controller *hose) 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; @@ -205,27 +212,6 @@ static int pcibios_enable_resources(struct pci_dev *dev, int mask) return 0; } -/* - * If we set up a device for bus mastering, we need to check the latency - * timer as certain crappy BIOSes forget to set it properly. - */ -static unsigned int pcibios_max_latency = 255; - -void pcibios_set_master(struct pci_dev *dev) -{ - u8 lat; - pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); - if (lat < 16) - lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency; - else if (lat > pcibios_max_latency) - lat = pcibios_max_latency; - else - return; - printk(KERN_DEBUG "PCI: Setting latency timer of device %s to %d\n", - pci_name(dev), lat); - pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); -} - unsigned int pcibios_assign_all_busses(void) { return (pci_probe & PCI_ASSIGN_ALL_BUSSES) ? 1 : 0; @@ -266,15 +252,11 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus) { /* 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); } diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.c b/arch/mn10300/unit-asb2305/pci-asb2305.c index 8e6763e6f250..c4e2e79281e8 100644 --- a/arch/mn10300/unit-asb2305/pci-asb2305.c +++ b/arch/mn10300/unit-asb2305/pci-asb2305.c @@ -213,28 +213,6 @@ void __init pcibios_resource_survey(void) pcibios_allocate_resources(1); } -/* - * If we set up a device for bus mastering, we need to check the latency - * timer as certain crappy BIOSes forget to set it properly. - */ -unsigned int pcibios_max_latency = 255; - -void pcibios_set_master(struct pci_dev *dev) -{ - u8 lat; - - pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); - - if (lat < 16) - lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency; - else if (lat > pcibios_max_latency) - lat = pcibios_max_latency; - else - return; - - pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); -} - int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine) { diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.h b/arch/mn10300/unit-asb2305/pci-asb2305.h index c3fa294b6e28..1194fe486b01 100644 --- a/arch/mn10300/unit-asb2305/pci-asb2305.h +++ b/arch/mn10300/unit-asb2305/pci-asb2305.h @@ -31,8 +31,6 @@ extern unsigned int pci_probe; /* pci-asb2305.c */ -extern unsigned int pcibios_max_latency; - extern void pcibios_resource_survey(void); /* pci.c */ diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c index a4954fe82094..a7c5f08ca9f5 100644 --- a/arch/mn10300/unit-asb2305/pci.c +++ b/arch/mn10300/unit-asb2305/pci.c @@ -380,11 +380,6 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus) { 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 pci_bus *bus) */ 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(); diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 882b6aa6c857..5d487657322e 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -226,7 +226,6 @@ extern void pci_process_bridge_OF_ranges(struct pci_controller *hose, /* 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); diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h index 1c92013466e3..f54b3d26ce9d 100644 --- a/arch/powerpc/include/asm/pci.h +++ b/arch/powerpc/include/asm/pci.h @@ -46,11 +46,6 @@ struct pci_dev; #define pcibios_assign_all_busses() \ (pci_has_flag(PCI_REASSIGN_ALL_BUS)) -static inline void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} - static inline void pcibios_penalize_isa_irq(int irq, int active) { /* We don't do dynamic PCI IRQ allocation */ diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index fa4a573d6716..cce98d76e905 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1131,6 +1131,11 @@ void __devinit pcibios_setup_bus_devices(struct pci_bus *bus) } } +void pcibios_set_master(struct pci_dev *dev) +{ + /* No special bus mastering setup handling */ +} + void __devinit pcibios_fixup_bus(struct pci_bus *bus) { /* When called from the generic PCI probe, read PCI<->PCI bridge @@ -1560,14 +1565,13 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) 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" @@ -1585,6 +1589,7 @@ void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) (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) { @@ -1602,12 +1607,12 @@ void __devinit pcibios_setup_phb_resources(struct pci_controller *hose) 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", @@ -1701,6 +1706,7 @@ struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus) */ void __devinit pcibios_scan_phb(struct pci_controller *hose) { + LIST_HEAD(resources); struct pci_bus *bus; struct device_node *node = hose->dn; int mode; @@ -1708,22 +1714,24 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose) 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) diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index bcf4bf9e72d9..3318d39b7d4c 100644 --- 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(struct pci_bus *bus) 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 diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 11aaf2fdec84..8f18dd090a66 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -36,9 +36,15 @@ static void __devinit pcibios_scanbus(struct pci_channel *hose) { 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(struct pci_channel *hose) 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_resources(struct pci_dev *dev, */ 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); @@ -243,27 +243,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) return pci_enable_resources(dev, mask); } -/* - * If we set up a device for bus mastering, we need to check and set - * the latency timer as it may not be properly set. - */ -static unsigned int pcibios_max_latency = 255; - -void pcibios_set_master(struct pci_dev *dev) -{ - u8 lat; - pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); - if (lat < 16) - lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency; - else if (lat > pcibios_max_latency) - lat = pcibios_max_latency; - else - return; - printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n", - pci_name(dev), lat); - pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); -} - void __init pcibios_update_irq(struct pci_dev *dev, int irq) { pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq); diff --git a/arch/sparc/include/asm/pci_32.h b/arch/sparc/include/asm/pci_32.h index 02939abd356c..6de7f7bf956a 100644 --- a/arch/sparc/include/asm/pci_32.h +++ b/arch/sparc/include/asm/pci_32.h @@ -16,11 +16,6 @@ #define PCI_IRQ_NONE 0xffffffff -static inline void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} - static inline void pcibios_penalize_isa_irq(int irq, int active) { /* We don't do dynamic PCI IRQ allocation */ diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h index 2614d96141c9..755a4bb6bcd3 100644 --- a/arch/sparc/include/asm/pci_64.h +++ b/arch/sparc/include/asm/pci_64.h @@ -16,11 +16,6 @@ #define PCI_IRQ_NONE 0xffffffff -static inline void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} - static inline void pcibios_penalize_isa_irq(int irq, int active) { /* We don't do dynamic PCI IRQ allocation */ diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c index f1cf6ef011a7..c7bec25fdb1c 100644 --- 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 pci_bus *pbus) 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 diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 31111e35281e..bb8bc2e519ac 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -685,23 +685,25 @@ static void __devinit pci_bus_register_of_sysfs(struct pci_bus *bus) 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_pbm(struct pci_pbm_info *pbm, 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) @@ -1083,6 +1078,11 @@ void pci_resource_to_user(const struct pci_dev *pdev, int bar, *end = rp->end - offset; } +void pcibios_set_master(struct pci_dev *dev) +{ + /* No special bus mastering setup handling */ +} + static int __init pcibios_init(void) { pci_dfl_cache_line_size = 64 >> 2; diff --git a/arch/tile/include/asm/pci.h b/arch/tile/include/asm/pci.h index 1d25fea42e54..5d5a635530bd 100644 --- a/arch/tile/include/asm/pci.h +++ b/arch/tile/include/asm/pci.h @@ -76,13 +76,6 @@ static inline int pcibios_assign_all_busses(void) return 1; } -/* - * No special bus mastering setup handling. - */ -static inline void pcibios_set_master(struct pci_dev *dev) -{ -} - #define PCIBIOS_MIN_MEM 0 #define PCIBIOS_MIN_IO 0 diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c index 25567934a21e..a1bb59eecc18 100644 --- a/arch/tile/kernel/pci.c +++ b/arch/tile/kernel/pci.c @@ -395,6 +395,11 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus) /* Nothing needs to be done. */ } +void pcibios_set_master(struct pci_dev *dev) +{ + /* No special bus mastering setup handling. */ +} + /* * This can be called from the generic PCI layer, but doesn't need to * do anything. diff --git a/arch/unicore32/include/asm/pci.h b/arch/unicore32/include/asm/pci.h index c5b28b459535..dd3867727c35 100644 --- a/arch/unicore32/include/asm/pci.h +++ b/arch/unicore32/include/asm/pci.h @@ -17,11 +17,6 @@ #include <asm-generic/pci.h> #include <mach/hardware.h> /* for PCIBIOS_MIN_* */ -static inline void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} - static inline void pcibios_penalize_isa_irq(int irq, int active) { /* We don't do dynamic PCI IRQ allocation */ diff --git a/arch/unicore32/kernel/pci.c b/arch/unicore32/kernel/pci.c index 4892fbb54ebf..a8f07fe10cad 100644 --- a/arch/unicore32/kernel/pci.c +++ b/arch/unicore32/kernel/pci.c @@ -309,6 +309,11 @@ char * __devinit pcibios_setup(char *str) return str; } +void pcibios_set_master(struct pci_dev *dev) +{ + /* No special bus mastering setup handling */ +} + /* * From arch/i386/kernel/pci-i386.c: * diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h index 8e41071704a5..49ad773f4b9f 100644 --- a/arch/x86/include/asm/amd_nb.h +++ b/arch/x86/include/asm/amd_nb.h @@ -1,6 +1,7 @@ #ifndef _ASM_X86_AMD_NB_H #define _ASM_X86_AMD_NB_H +#include <linux/ioport.h> #include <linux/pci.h> struct amd_nb_bus_dev_range { @@ -13,6 +14,7 @@ extern const struct pci_device_id amd_nb_misc_ids[]; extern const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[]; extern bool early_is_amd_nb(u32 value); +extern struct resource *amd_get_mmconfig_range(struct resource *res); extern int amd_cache_northbridges(void); extern void amd_flush_garts(void); extern int amd_numa_init(void); diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h index d498943b906c..df75d07571ce 100644 --- a/arch/x86/include/asm/pci.h +++ b/arch/x86/include/asm/pci.h @@ -112,19 +112,28 @@ static inline void x86_teardown_msi_irq(unsigned int irq) { x86_msi.teardown_msi_irq(irq); } +static inline void x86_restore_msi_irqs(struct pci_dev *dev, int irq) +{ + x86_msi.restore_msi_irqs(dev, irq); +} #define arch_setup_msi_irqs x86_setup_msi_irqs #define arch_teardown_msi_irqs x86_teardown_msi_irqs #define arch_teardown_msi_irq x86_teardown_msi_irq +#define arch_restore_msi_irqs x86_restore_msi_irqs /* implemented in arch/x86/kernel/apic/io_apic. */ int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type); void native_teardown_msi_irq(unsigned int irq); +void native_restore_msi_irqs(struct pci_dev *dev, int irq); /* default to the implementation in drivers/lib/msi.c */ #define HAVE_DEFAULT_MSI_TEARDOWN_IRQS +#define HAVE_DEFAULT_MSI_RESTORE_IRQS void default_teardown_msi_irqs(struct pci_dev *dev); +void default_restore_msi_irqs(struct pci_dev *dev, int irq); #else #define native_setup_msi_irqs NULL #define native_teardown_msi_irq NULL #define default_teardown_msi_irqs NULL +#define default_restore_msi_irqs NULL #endif #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys) diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h index e38197806853..b3a531746026 100644 --- a/arch/x86/include/asm/pci_x86.h +++ b/arch/x86/include/asm/pci_x86.h @@ -44,8 +44,6 @@ enum pci_bf_sort_state { /* pci-i386.c */ -extern unsigned int pcibios_max_latency; - void pcibios_resource_survey(void); void pcibios_set_cache_line_size(void); diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index 800f77c60051..b9676ae37ada 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -172,7 +172,7 @@ static inline void arch_fix_phys_package_id(int num, u32 slot) } 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) && \ diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h index 1ac860a09849..517d4767ffdd 100644 --- a/arch/x86/include/asm/x86_init.h +++ b/arch/x86/include/asm/x86_init.h @@ -179,6 +179,7 @@ struct x86_msi_ops { int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type); void (*teardown_msi_irq)(unsigned int irq); void (*teardown_msi_irqs)(struct pci_dev *dev); + void (*restore_msi_irqs)(struct pci_dev *dev, int irq); }; extern struct x86_init_ops x86_init; diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c index 013c1810ce72..be16854591cc 100644 --- a/arch/x86/kernel/amd_nb.c +++ b/arch/x86/kernel/amd_nb.c @@ -119,6 +119,37 @@ bool __init early_is_amd_nb(u32 device) return false; } +struct resource *amd_get_mmconfig_range(struct resource *res) +{ + u32 address; + u64 base, msr; + unsigned segn_busn_bits; + + if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) + return NULL; + + /* assume all cpus from fam10h have mmconfig */ + if (boot_cpu_data.x86 < 0x10) + return NULL; + + address = MSR_FAM10H_MMIO_CONF_BASE; + rdmsrl(address, msr); + + /* mmconfig is not enabled */ + if (!(msr & FAM10H_MMIO_CONF_ENABLE)) + return NULL; + + base = msr & (FAM10H_MMIO_CONF_BASE_MASK<<FAM10H_MMIO_CONF_BASE_SHIFT); + + segn_busn_bits = (msr >> FAM10H_MMIO_CONF_BUSRANGE_SHIFT) & + FAM10H_MMIO_CONF_BUSRANGE_MASK; + + res->flags = IORESOURCE_MEM; + res->start = base; + res->end = base + (1ULL<<(segn_busn_bits + 20)) - 1; + return res; +} + int amd_get_subcaches(int cpu) { struct pci_dev *link = node_to_amd_nb(amd_get_nb_id(cpu))->link; diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c index 91f83e21b989..947a06ccc673 100644 --- a/arch/x86/kernel/x86_init.c +++ b/arch/x86/kernel/x86_init.c @@ -115,4 +115,5 @@ struct x86_msi_ops x86_msi = { .setup_msi_irqs = native_setup_msi_irqs, .teardown_msi_irq = native_teardown_msi_irq, .teardown_msi_irqs = default_teardown_msi_irqs, + .restore_msi_irqs = default_restore_msi_irqs, }; diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 404f21a3ff9e..a312e76063a7 100644 --- 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; }; @@ -24,6 +24,12 @@ static int __init set_use_crs(const struct dmi_system_id *id) return 0; } +static int __init set_nouse_crs(const struct dmi_system_id *id) +{ + pci_use_crs = false; + return 0; +} + static const struct dmi_system_id pci_use_crs_table[] __initconst = { /* http://bugzilla.kernel.org/show_bug.cgi?id=14183 */ { @@ -54,6 +60,29 @@ static const struct dmi_system_id pci_use_crs_table[] __initconst = { DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."), }, }, + + /* Now for the blacklist.. */ + + /* https://bugzilla.redhat.com/show_bug.cgi?id=769657 */ + { + .callback = set_nouse_crs, + .ident = "Dell Studio 1557", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Studio 1557"), + DMI_MATCH(DMI_BIOS_VERSION, "A09"), + }, + }, + /* https://bugzilla.redhat.com/show_bug.cgi?id=769657 */ + { + .callback = set_nouse_crs, + .ident = "Thinkpad SL510", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), + DMI_MATCH(DMI_BOARD_NAME, "2847DFG"), + DMI_MATCH(DMI_BIOS_VERSION, "6JET85WW (1.43 )"), + }, + }, {} }; @@ -149,7 +178,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data) struct acpi_resource_address64 addr; acpi_status status; unsigned long flags; - u64 start, end; + u64 start, orig_end, end; status = resource_to_addr(acpi_res, &addr); if (!ACPI_SUCCESS(status)) @@ -165,7 +194,21 @@ setup_resource(struct acpi_resource *acpi_res, void *data) return AE_OK; start = addr.minimum + addr.translation_offset; - end = addr.maximum + addr.translation_offset; + orig_end = end = addr.maximum + addr.translation_offset; + + /* Exclude non-addressable range or non-addressable portion of range */ + end = min(end, (u64)iomem_resource.end); + if (end <= start) { + dev_info(&info->bridge->dev, + "host bridge window [%#llx-%#llx] " + "(ignored, not CPU addressable)\n", start, orig_end); + return AE_OK; + } else if (orig_end != end) { + dev_info(&info->bridge->dev, + "host bridge window [%#llx-%#llx] " + "([%#llx-%#llx] ignored, not CPU addressable)\n", + start, orig_end, end + 1, orig_end); + } res = &info->res[info->res_num]; res->name = info->name; @@ -261,23 +304,20 @@ static void add_resources(struct pci_root_info *info) "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 +326,7 @@ get_current_resources(struct acpi_device *device, int busnum, 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 +341,6 @@ get_current_resources(struct acpi_device *device, int busnum, 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 +348,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) 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 +403,15 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) 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, diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c index 026e4931d162..0567df3890e1 100644 --- a/arch/x86/pci/amd_bus.c +++ b/arch/x86/pci/amd_bus.c @@ -30,34 +30,6 @@ static struct pci_hostbridge_probe pci_probes[] __initdata = { { 0, 0x18, PCI_VENDOR_ID_AMD, 0x1300 }, }; -static u64 __initdata fam10h_mmconf_start; -static u64 __initdata fam10h_mmconf_end; -static void __init get_pci_mmcfg_amd_fam10h_range(void) -{ - u32 address; - u64 base, msr; - unsigned segn_busn_bits; - - /* assume all cpus from fam10h have mmconf */ - if (boot_cpu_data.x86 < 0x10) - return; - - address = MSR_FAM10H_MMIO_CONF_BASE; - rdmsrl(address, msr); - - /* mmconfig is not enable */ - if (!(msr & FAM10H_MMIO_CONF_ENABLE)) - return; - - base = msr & (FAM10H_MMIO_CONF_BASE_MASK<<FAM10H_MMIO_CONF_BASE_SHIFT); - - segn_busn_bits = (msr >> FAM10H_MMIO_CONF_BUSRANGE_SHIFT) & - FAM10H_MMIO_CONF_BUSRANGE_MASK; - - fam10h_mmconf_start = base; - fam10h_mmconf_end = base + (1ULL<<(segn_busn_bits + 20)) - 1; -} - #define RANGE_NUM 16 /** @@ -85,6 +57,9 @@ static int __init early_fill_mp_bus_info(void) u64 val; u32 address; bool found; + struct resource fam10h_mmconf_res, *fam10h_mmconf; + u64 fam10h_mmconf_start; + u64 fam10h_mmconf_end; if (!early_pci_allowed()) return -1; @@ -211,12 +186,17 @@ static int __init early_fill_mp_bus_info(void) subtract_range(range, RANGE_NUM, 0, end); /* get mmconfig */ - get_pci_mmcfg_amd_fam10h_range(); + fam10h_mmconf = amd_get_mmconfig_range(&fam10h_mmconf_res); /* need to take out mmconf range */ - if (fam10h_mmconf_end) { - printk(KERN_DEBUG "Fam 10h mmconf [%llx, %llx]\n", fam10h_mmconf_start, fam10h_mmconf_end); + if (fam10h_mmconf) { + printk(KERN_DEBUG "Fam 10h mmconf %pR\n", fam10h_mmconf); + fam10h_mmconf_start = fam10h_mmconf->start; + fam10h_mmconf_end = fam10h_mmconf->end; subtract_range(range, RANGE_NUM, fam10h_mmconf_start, fam10h_mmconf_end + 1); + } else { + fam10h_mmconf_start = 0; + fam10h_mmconf_end = 0; } /* mmio resource */ @@ -403,7 +383,6 @@ static void __init pci_enable_pci_io_ecs(void) ++n; } } - pr_info("Extended Config Space enabled on %u nodes\n", n); #endif } diff --git a/arch/x86/pci/broadcom_bus.c b/arch/x86/pci/broadcom_bus.c index ab8269b0da29..f3a7c569a403 100644 --- 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 pci_dev *dev) 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 pci_dev *dev) } /* 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 pci_dev *dev) } /* 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 pci_dev *dev) } /* 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 pci_dev *dev) 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); diff --git a/arch/x86/pci/bus_numa.c b/arch/x86/pci/bus_numa.c index 64a122883896..fd3f65510e9d 100644 --- 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, diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 7962ccb4d9b2..323481e06ef8 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -164,9 +164,6 @@ void __devinit pcibios_fixup_bus(struct pci_bus *b) { 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_root(int busnum) 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 *dev) 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_on_node(int busno, struct pci_ops *ops, 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; } diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index 794b092d01ae..91821a1a0c3a 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -254,26 +254,6 @@ void __init pcibios_resource_survey(void) */ fs_initcall(pcibios_assign_resources); -/* - * If we set up a device for bus mastering, we need to check the latency - * timer as certain crappy BIOSes forget to set it properly. - */ -unsigned int pcibios_max_latency = 255; - -void pcibios_set_master(struct pci_dev *dev) -{ - u8 lat; - pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); - if (lat < 16) - lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency; - else if (lat > pcibios_max_latency) - lat = pcibios_max_latency; - else - return; - dev_printk(KERN_DEBUG, &dev->dev, "setting latency timer to %d\n", lat); - pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); -} - static const struct vm_operations_struct pci_mmap_ops = { .access = generic_access_phys, }; diff --git a/arch/x86/pci/legacy.c b/arch/x86/pci/legacy.c index 2c2aeabc2609..a1df191129d3 100644 --- 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; } diff --git a/arch/x86/pci/numaq_32.c b/arch/x86/pci/numaq_32.c index 51abf02f9226..83e125b95ca6 100644 --- 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) diff --git a/arch/xtensa/include/asm/pci.h b/arch/xtensa/include/asm/pci.h index 4609b0f15f1f..05244f07dd31 100644 --- a/arch/xtensa/include/asm/pci.h +++ b/arch/xtensa/include/asm/pci.h @@ -22,11 +22,6 @@ extern struct pci_controller* pcibios_alloc_controller(void); -static inline void pcibios_set_master(struct pci_dev *dev) -{ - /* No special bus mastering setup handling */ -} - static inline void pcibios_penalize_isa_irq(int irq) { /* We don't do dynamic PCI IRQ allocation */ diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c index cd1026931203..61045c192e88 100644 --- a/arch/xtensa/kernel/pci.c +++ b/arch/xtensa/kernel/pci.c @@ -134,9 +134,46 @@ struct pci_controller * __init pcibios_alloc_controller(void) 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_bus *bus) 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); @@ -227,6 +226,11 @@ char __init *pcibios_setup(char *str) return str; } +void pcibios_set_master(struct pci_dev *dev) +{ + /* No special bus mastering setup handling */ +} + /* the next one is stolen from the alpha port... */ void __init |