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author | Bjorn Helgaas <bhelgaas@google.com> | 2012-02-24 04:19:03 +0100 |
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committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-02-24 04:19:03 +0100 |
commit | 6c5705fec63d83eeb165fe61e34adc92ecc2ce75 (patch) | |
tree | 80efef86786d06cba09c3ad72dea2e991afd7e8c /arch/powerpc/kernel/pci-common.c | |
parent | parisc/PCI: get rid of device resource fixups (diff) | |
download | linux-6c5705fec63d83eeb165fe61e34adc92ecc2ce75.tar.xz linux-6c5705fec63d83eeb165fe61e34adc92ecc2ce75.zip |
powerpc/PCI: get rid of device resource fixups
Tell the PCI core about host bridge address translation so it can take
care of bus-to-resource conversion for us.
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'arch/powerpc/kernel/pci-common.c')
-rw-r--r-- | arch/powerpc/kernel/pci-common.c | 79 |
1 files changed, 5 insertions, 74 deletions
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 6d03da475572..910b9dea7037 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -846,60 +846,6 @@ int pci_proc_domain(struct pci_bus *bus) return 1; } -void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, - struct resource *res) -{ - resource_size_t offset = 0, mask = (resource_size_t)-1; - struct pci_controller *hose = pci_bus_to_host(dev->bus); - - if (!hose) - return; - if (res->flags & IORESOURCE_IO) { - offset = (unsigned long)hose->io_base_virt - _IO_BASE; - mask = 0xffffffffu; - } else if (res->flags & IORESOURCE_MEM) - offset = hose->pci_mem_offset; - - region->start = (res->start - offset) & mask; - region->end = (res->end - offset) & mask; -} -EXPORT_SYMBOL(pcibios_resource_to_bus); - -void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, - struct pci_bus_region *region) -{ - resource_size_t offset = 0, mask = (resource_size_t)-1; - struct pci_controller *hose = pci_bus_to_host(dev->bus); - - if (!hose) - return; - if (res->flags & IORESOURCE_IO) { - offset = (unsigned long)hose->io_base_virt - _IO_BASE; - mask = 0xffffffffu; - } else if (res->flags & IORESOURCE_MEM) - offset = hose->pci_mem_offset; - res->start = (region->start + offset) & mask; - res->end = (region->end + offset) & mask; -} -EXPORT_SYMBOL(pcibios_bus_to_resource); - -/* Fixup a bus resource into a linux resource */ -static void __devinit fixup_resource(struct resource *res, struct pci_dev *dev) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - resource_size_t offset = 0, mask = (resource_size_t)-1; - - if (res->flags & IORESOURCE_IO) { - offset = (unsigned long)hose->io_base_virt - _IO_BASE; - mask = 0xffffffffu; - } else if (res->flags & IORESOURCE_MEM) - offset = hose->pci_mem_offset; - - res->start = (res->start + offset) & mask; - res->end = (res->end + offset) & mask; -} - - /* This header fixup will do the resource fixup for all devices as they are * probed, but not for bridge ranges */ @@ -939,18 +885,11 @@ static void __devinit pcibios_fixup_resources(struct pci_dev *dev) continue; } - pr_debug("PCI:%s Resource %d %016llx-%016llx [%x] fixup...\n", + pr_debug("PCI:%s Resource %d %016llx-%016llx [%x]\n", pci_name(dev), i, (unsigned long long)res->start,\ (unsigned long long)res->end, (unsigned int)res->flags); - - fixup_resource(res, dev); - - pr_debug("PCI:%s %016llx-%016llx\n", - pci_name(dev), - (unsigned long long)res->start, - (unsigned long long)res->end); } /* Call machine specific resource fixup */ @@ -1052,27 +991,18 @@ static void __devinit pcibios_fixup_bridge(struct pci_bus *bus) continue; } - pr_debug("PCI:%s Bus rsrc %d %016llx-%016llx [%x] fixup...\n", + pr_debug("PCI:%s Bus rsrc %d %016llx-%016llx [%x]\n", pci_name(dev), i, (unsigned long long)res->start,\ (unsigned long long)res->end, (unsigned int)res->flags); - /* Perform fixup */ - fixup_resource(res, dev); - /* Try to detect uninitialized P2P bridge resources, * and clear them out so they get re-assigned later */ if (pcibios_uninitialized_bridge_resource(bus, res)) { res->flags = 0; pr_debug("PCI:%s (unassigned)\n", pci_name(dev)); - } else { - - pr_debug("PCI:%s %016llx-%016llx\n", - pci_name(dev), - (unsigned long long)res->start, - (unsigned long long)res->end); } } } @@ -1586,7 +1516,8 @@ static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose, s (unsigned long long)res->start, (unsigned long long)res->end, (unsigned long)res->flags); - pci_add_resource(resources, res); + pci_add_resource_offset(resources, res, + (resource_size_t) hose->io_base_virt - _IO_BASE); /* Hookup PHB Memory resources */ for (i = 0; i < 3; ++i) { @@ -1609,7 +1540,7 @@ static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose, s (unsigned long long)res->start, (unsigned long long)res->end, (unsigned long)res->flags); - pci_add_resource(resources, res); + pci_add_resource_offset(resources, res, hose->pci_mem_offset); } pr_debug("PCI: PHB MEM offset = %016llx\n", |