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>

diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index f54b3d2..839178b 100644 (file)
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -154,13 +154,7 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
 
 #endif /* CONFIG_PPC64 */
 
-extern void pcibios_resource_to_bus(struct pci_dev *dev,
-                       struct pci_bus_region *region,
-                       struct resource *res);
-
-extern void pcibios_bus_to_resource(struct pci_dev *dev,
-                       struct resource *res,
-                       struct pci_bus_region *region);
+#define ARCH_HAS_GENERIC_PCI_OFFSETS
 
 extern void pcibios_claim_one_bus(struct pci_bus *b);
 

diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 6d03da4..910b9de 100644 (file)
--- 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",