119 files changed, 1649 insertions, 1701 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 7c33ef8a1ba9..1c9a348548dc 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2147,8 +2147,14 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                                 the default.
                                 off: Turn ECRC off
                                 on: Turn ECRC on.
-                realloc         reallocate PCI resources if allocations done by BIOS
-                                are erroneous.
+                realloc=        Enable/disable reallocating PCI bridge resources
+                                if allocations done by BIOS are too small to
+                                accommodate resources required by all child
+                                devices.
+                                off: Turn realloc off
+                                on: Turn realloc on
+                realloc         same as realloc=on
+                noari           do not use PCIe ARI.
 
         pcie_aspm=      [PCIE] Forcibly enable or disable PCIe Active State Power
                         Management.
@@ -2156,6 +2162,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                 force   Enable ASPM even on devices that claim not to support it.
                         WARNING: Forcing ASPM on may cause system lockups.
 
+        pcie_hp=        [PCIE] PCI Express Hotplug driver options:
+                nomsi   Do not use MSI for PCI Express Native Hotplug (this
+                        makes all PCIe ports use INTx for hotplug services).
+
         pcie_ports=     [PCIE] PCIe ports handling:
                 auto    Ask the BIOS whether or not to use native PCIe services
                         associated with PCIe ports (PME, hot-plug, AER).  Use
diff --git a/MAINTAINERS b/MAINTAINERS
index 95eba3135018..3b733fafb055 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5120,7 +5120,7 @@ F:	Documentation/PCI/pci-error-recovery.txt
 F:      Documentation/powerpc/eeh-pci-error-recovery.txt
 
 PCI SUBSYSTEM
-M:      Jesse Barnes <jbarnes@virtuousgeek.org>
+M:      Bjorn Helgaas <bhelgaas@google.com>
 L:      linux-pci@vger.kernel.org
 Q:      http://patchwork.kernel.org/project/linux-pci/list/
 T:      git git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6.git
@@ -5130,7 +5130,7 @@ F:	drivers/pci/
 F:      include/linux/pci*
 
 PCI HOTPLUG
-M:      Jesse Barnes <jbarnes@virtuousgeek.org>
+M:      Bjorn Helgaas <bhelgaas@google.com>
 L:      linux-pci@vger.kernel.org
 S:      Supported
 F:      drivers/pci/hotplug
diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h
index 28d0497fd3c7..d01afb78919c 100644
--- a/arch/alpha/include/asm/pci.h
+++ b/arch/alpha/include/asm/pci.h
@@ -7,6 +7,7 @@
 #include <linux/dma-mapping.h>
 #include <asm/scatterlist.h>
 #include <asm/machvec.h>
+#include <asm-generic/pci-bridge.h>
 
 /*
  * The following structure is used to manage multiple PCI busses.
@@ -99,12 +100,6 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
         return channel ? 15 : 14;
 }
 
-extern void pcibios_resource_to_bus(struct pci_dev *, struct pci_bus_region *,
-                                    struct resource *);
-
-extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-                                    struct pci_bus_region *region);
-
 #define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
 
 static inline int pci_proc_domain(struct pci_bus *bus)
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 8c723c1b086a..1a629636cc16 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -43,12 +43,10 @@ const char *const pci_mem_names[] = {
 
 const char pci_hae0_name[] = "HAE0";
 
-/* Indicate whether we respect the PCI setup left by console. */
 /*
- * Make this long-lived  so that we know when shutting down
- * whether we probed only or not.
+ * If PCI_PROBE_ONLY in pci_flags is set, we don't change any PCI resource
+ * assignments.
  */
-int pci_probe_only;
 
 /*
  * The PCI controller list.
@@ -215,7 +213,7 @@ pdev_save_srm_config(struct pci_dev *dev)
         struct pdev_srm_saved_conf *tmp;
         static int printed = 0;
 
-        if (!alpha_using_srm || pci_probe_only)
+        if (!alpha_using_srm || pci_has_flag(PCI_PROBE_ONLY))
                 return;
 
         if (!printed) {
@@ -242,7 +240,7 @@ pci_restore_srm_config(void)
         struct pdev_srm_saved_conf *tmp;
 
         /* No need to restore if probed only. */
-        if (pci_probe_only)
+        if (pci_has_flag(PCI_PROBE_ONLY))
                 return;
 
         /* Restore SRM config. */
@@ -253,46 +251,17 @@ pci_restore_srm_config(void)
 #endif
 
 void __devinit
-pcibios_fixup_resource(struct resource *res, struct resource *root)
-{
-        res->start += root->start;
-        res->end += root->start;
-}
-
-void __devinit
-pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus)
-{
-        /* Update device resources.  */
-        struct pci_controller *hose = (struct pci_controller *)bus->sysdata;
-        int i;
-
-        for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-                if (!dev->resource[i].start)
-                        continue;
-                if (dev->resource[i].flags & IORESOURCE_IO)
-                        pcibios_fixup_resource(&dev->resource[i],
-                                               hose->io_space);
-                else if (dev->resource[i].flags & IORESOURCE_MEM)
-                        pcibios_fixup_resource(&dev->resource[i],
-                                               hose->mem_space);
-        }
-}
-
-void __devinit
 pcibios_fixup_bus(struct pci_bus *bus)
 {
         struct pci_dev *dev = bus->self;
 
-        if (pci_probe_only && dev &&
+        if (pci_has_flag(PCI_PROBE_ONLY) && dev &&
                    (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
                 pci_read_bridge_bases(bus);
-                pcibios_fixup_device_resources(dev, bus);
         } 
 
         list_for_each_entry(dev, &bus->devices, bus_list) {
                 pdev_save_srm_config(dev);
-                if ((dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
-                        pcibios_fixup_device_resources(dev, bus);
         }
 }
 
@@ -302,42 +271,6 @@ pcibios_update_irq(struct pci_dev *dev, int irq)
         pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
 }
 
-void
-pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
-                         struct resource *res)
-{
-        struct pci_controller *hose = (struct pci_controller *)dev->sysdata;
-        unsigned long offset = 0;
-
-        if (res->flags & IORESOURCE_IO)
-                offset = hose->io_space->start;
-        else if (res->flags & IORESOURCE_MEM)
-                offset = hose->mem_space->start;
-
-        region->start = res->start - offset;
-        region->end = res->end - offset;
-}
-
-void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-                             struct pci_bus_region *region)
-{
-        struct pci_controller *hose = (struct pci_controller *)dev->sysdata;
-        unsigned long offset = 0;
-
-        if (res->flags & IORESOURCE_IO)
-                offset = hose->io_space->start;
-        else if (res->flags & IORESOURCE_MEM)
-                offset = hose->mem_space->start;
-
-        res->start = region->start + offset;
-        res->end = region->end + offset;
-}
-
-#ifdef CONFIG_HOTPLUG
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-EXPORT_SYMBOL(pcibios_bus_to_resource);
-#endif
-
 int
 pcibios_enable_device(struct pci_dev *dev, int mask)
 {
@@ -374,7 +307,8 @@ pcibios_claim_one_bus(struct pci_bus *b)
 
                         if (r->parent || !r->start || !r->flags)
                                 continue;
-                        if (pci_probe_only || (r->flags & IORESOURCE_PCI_FIXED))
+                        if (pci_has_flag(PCI_PROBE_ONLY) ||
+                            (r->flags & IORESOURCE_PCI_FIXED))
                                 pci_claim_resource(dev, i);
                 }
         }
@@ -416,8 +350,10 @@ common_init_pci(void)
                         hose->mem_space->end = end;
 
                 INIT_LIST_HEAD(&resources);
-                pci_add_resource(&resources, hose->io_space);
-                pci_add_resource(&resources, hose->mem_space);
+                pci_add_resource_offset(&resources, hose->io_space,
+                                        hose->io_space->start);
+                pci_add_resource_offset(&resources, hose->mem_space,
+                                        hose->mem_space->start);
 
                 bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops,
                                         hose, &resources);
diff --git a/arch/alpha/kernel/pci_impl.h b/arch/alpha/kernel/pci_impl.h
index 85457b2d4516..2b0ac429f5eb 100644
--- a/arch/alpha/kernel/pci_impl.h
+++ b/arch/alpha/kernel/pci_impl.h
@@ -173,9 +173,6 @@ extern void pci_restore_srm_config(void);
 extern struct pci_controller *hose_head, **hose_tail;
 extern struct pci_controller *pci_isa_hose;
 
-/* Indicate that we trust the console to configure things properly.  */
-extern int pci_probe_only;
-
 extern unsigned long alpha_agpgart_size;
 
 extern void common_init_pci(void);
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c
index 95cfc83ece8f..fc8b12508611 100644
--- a/arch/alpha/kernel/sys_marvel.c
+++ b/arch/alpha/kernel/sys_marvel.c
@@ -384,7 +384,8 @@ marvel_init_pci(void)
 
         marvel_register_error_handlers();
 
-        pci_probe_only = 1;
+        /* Indicate that we trust the console to configure things properly */
+        pci_set_flags(PCI_PROBE_ONLY);
         common_init_pci();
         locate_and_init_vga(NULL);
 
diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c
index f47b30a2a117..b8eafa053539 100644
--- a/arch/alpha/kernel/sys_titan.c
+++ b/arch/alpha/kernel/sys_titan.c
@@ -331,7 +331,8 @@ titan_init_pci(void)
          */
         titan_late_init();
  
-        pci_probe_only = 1;
+        /* Indicate that we trust the console to configure things properly */
+        pci_set_flags(PCI_PROBE_ONLY);
         common_init_pci();
         SMC669_Init(0);
         locate_and_init_vga(NULL);
diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c
index fb1f1cfce60c..dcb13494ca0d 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;
         }
 
-        pci_add_resource(&sys->resources, &it8152_io);
-        pci_add_resource(&sys->resources, &it8152_mem);
+        pci_add_resource_offset(&sys->resources, &it8152_io, sys->io_offset);
+        pci_add_resource_offset(&sys->resources, &it8152_mem, sys->mem_offset);
 
         if (platform_notify || platform_notify_remove) {
                 printk(KERN_ERR "PCI: Can't use platform_notify\n");
diff --git a/arch/arm/include/asm/pci.h b/arch/arm/include/asm/pci.h
index da337ba57ffd..a98a2e112fae 100644
--- a/arch/arm/include/asm/pci.h
+++ b/arch/arm/include/asm/pci.h
@@ -57,14 +57,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
                                enum pci_mmap_state mmap_state, int write_combine);
 
-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);
-
 /*
  * Dummy implementation; always return 0.
  */
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index f58ba3589908..632df9a66f8c 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -16,7 +16,6 @@
 #include <asm/mach/pci.h>
 
 static int debug_pci;
-static int use_firmware;
 
 /*
  * We can't use pci_find_device() here since we are
@@ -295,28 +294,6 @@ static inline int pdev_bad_for_parity(struct pci_dev *dev)
 }
 
 /*
- * Adjust the device resources from bus-centric to Linux-centric.
- */
-static void __devinit
-pdev_fixup_device_resources(struct pci_sys_data *root, struct pci_dev *dev)
-{
-        resource_size_t offset;
-        int i;
-
-        for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-                if (dev->resource[i].start == 0)
-                        continue;
-                if (dev->resource[i].flags & IORESOURCE_MEM)
-                        offset = root->mem_offset;
-                else
-                        offset = root->io_offset;
-
-                dev->resource[i].start += offset;
-                dev->resource[i].end   += offset;
-        }
-}
-
-/*
  * pcibios_fixup_bus - Called after each bus is probed,
  * but before its children are examined.
  */
@@ -333,8 +310,6 @@ void pcibios_fixup_bus(struct pci_bus *bus)
         list_for_each_entry(dev, &bus->devices, bus_list) {
                 u16 status;
 
-                pdev_fixup_device_resources(root, dev);
-
                 pci_read_config_word(dev, PCI_STATUS, &status);
 
                 /*
@@ -400,43 +375,6 @@ EXPORT_SYMBOL(pcibios_fixup_bus);
 #endif
 
 /*
- * Convert from Linux-centric to bus-centric addresses for bridge devices.
- */
-void
-pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
-                         struct resource *res)
-{
-        struct pci_sys_data *root = dev->sysdata;
-        unsigned long offset = 0;
-
-        if (res->flags & IORESOURCE_IO)
-                offset = root->io_offset;
-        if (res->flags & IORESOURCE_MEM)
-                offset = root->mem_offset;
-
-        region->start = res->start - offset;
-        region->end   = res->end - offset;
-}
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-
-void __devinit
-pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-                        struct pci_bus_region *region)
-{
-        struct pci_sys_data *root = dev->sysdata;
-        unsigned long offset = 0;
-
-        if (res->flags & IORESOURCE_IO)
-                offset = root->io_offset;
-        if (res->flags & IORESOURCE_MEM)
-                offset = root->mem_offset;
-
-        res->start = region->start + offset;
-        res->end   = region->end + offset;
-}
-EXPORT_SYMBOL(pcibios_bus_to_resource);
-
-/*
  * Swizzle the device pin each time we cross a bridge.
  * This might update pin and returns the slot number.
  */
@@ -497,10 +435,10 @@ static void __init pcibios_init_hw(struct hw_pci *hw)
 
                 if (ret > 0) {
                         if (list_empty(&sys->resources)) {
-                                pci_add_resource(&sys->resources,
-                                                 &ioport_resource);
-                                pci_add_resource(&sys->resources,
-                                                 &iomem_resource);
+                                pci_add_resource_offset(&sys->resources,
+                                         &ioport_resource, sys->io_offset);
+                                pci_add_resource_offset(&sys->resources,
+                                         &iomem_resource, sys->mem_offset);
                         }
 
                         sys->bus = hw->scan(nr, sys);
@@ -525,6 +463,7 @@ void __init pci_common_init(struct hw_pci *hw)
 
         INIT_LIST_HEAD(&hw->buses);
 
+        pci_add_flags(PCI_REASSIGN_ALL_RSRC);
         if (hw->preinit)
                 hw->preinit();
         pcibios_init_hw(hw);
@@ -536,7 +475,7 @@ void __init pci_common_init(struct hw_pci *hw)
         list_for_each_entry(sys, &hw->buses, node) {
                 struct pci_bus *bus = sys->bus;
 
-                if (!use_firmware) {
+                if (!pci_has_flag(PCI_PROBE_ONLY)) {
                         /*
                          * Size the bridge windows.
                          */
@@ -573,7 +512,7 @@ char * __init pcibios_setup(char *str)
                 debug_pci = 1;
                 return NULL;
         } else if (!strcmp(str, "firmware")) {
-                use_firmware = 1;
+                pci_add_flags(PCI_PROBE_ONLY);
                 return NULL;
         }
         return str;
diff --git a/arch/arm/mach-cns3xxx/pcie.c b/arch/arm/mach-cns3xxx/pcie.c
index e159d69967c9..79d001f831e0 100644
--- a/arch/arm/mach-cns3xxx/pcie.c
+++ b/arch/arm/mach-cns3xxx/pcie.c
@@ -155,8 +155,8 @@ static int cns3xxx_pci_setup(int nr, struct pci_sys_data *sys)
         BUG_ON(request_resource(&iomem_resource, res_io) ||
                request_resource(&iomem_resource, res_mem));
 
-        pci_add_resource(&sys->resources, res_io);
-        pci_add_resource(&sys->resources, res_mem);
+        pci_add_resource_offset(&sys->resources, res_io, sys->io_offset);
+        pci_add_resource_offset(&sys->resources, res_mem, sys->mem_offset);
 
         return 1;
 }
diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c
index 52e96d397ba8..48a032005ea3 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");
-        pci_add_resource(&sys->resources, &pp->res[0]);
+        pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset);
 
         /*
          * IORESOURCE_MEM
@@ -88,7 +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");
-        pci_add_resource(&sys->resources, &pp->res[1]);
+        pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset);
 
         return 1;
 }
diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c
index f685650c25d7..3194d3f73503 100644
--- a/arch/arm/mach-footbridge/dc21285.c
+++ b/arch/arm/mach-footbridge/dc21285.c
@@ -275,11 +275,13 @@ int __init dc21285_setup(int nr, struct pci_sys_data *sys)
         allocate_resource(&iomem_resource, &res[0], 0x40000000,
                           0x80000000, 0xffffffff, 0x40000000, NULL, NULL);
 
-        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;
 
+        pci_add_resource_offset(&sys->resources,
+                                &ioport_resource, sys->io_offset);
+        pci_add_resource_offset(&sys->resources, &res[0], sys->mem_offset);
+        pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
+
         return 1;
 }
 
diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index 3c82566acece..015be770c1d8 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -378,9 +378,10 @@ static int __init pci_v3_setup_resources(struct pci_sys_data *sys)
          * the mem resource for this bus
          * the prefetch mem resource for this bus
          */
-        pci_add_resource(&sys->resources, &ioport_resource);
-        pci_add_resource(&sys->resources, &non_mem);
-        pci_add_resource(&sys->resources, &pre_mem);
+        pci_add_resource_offset(&sys->resources,
+                                &ioport_resource, sys->io_offset);
+        pci_add_resource_offset(&sys->resources, &non_mem, sys->mem_offset);
+        pci_add_resource_offset(&sys->resources, &pre_mem, sys->mem_offset);
 
         return 1;
 }
diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c
index b8f5a8736511..861cb12ef436 100644
--- a/arch/arm/mach-iop13xx/pci.c
+++ b/arch/arm/mach-iop13xx/pci.c
@@ -1084,8 +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]);
 
-        pci_add_resource(&sys->resources, &res[0]);
-        pci_add_resource(&sys->resources, &res[1]);
+        pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
+        pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
 
         return 1;
 }
diff --git a/arch/arm/mach-ixp2000/ixdp2400.c b/arch/arm/mach-ixp2000/ixdp2400.c
index f53e911ec94a..d519944653ad 100644
--- a/arch/arm/mach-ixp2000/ixdp2400.c
+++ b/arch/arm/mach-ixp2000/ixdp2400.c
@@ -134,11 +134,11 @@ static void ixdp2400_pci_postinit(void)
 
         if (ixdp2x00_master_npu()) {
                 dev = pci_get_bus_and_slot(1, IXDP2400_SLAVE_ENET_DEVFN);
-                pci_remove_bus_device(dev);
+                pci_stop_and_remove_bus_device(dev);
                 pci_dev_put(dev);
         } else {
                 dev = pci_get_bus_and_slot(1, IXDP2400_MASTER_ENET_DEVFN);
-                pci_remove_bus_device(dev);
+                pci_stop_and_remove_bus_device(dev);
                 pci_dev_put(dev);
 
                 ixdp2x00_slave_pci_postinit();
diff --git a/arch/arm/mach-ixp2000/ixdp2800.c b/arch/arm/mach-ixp2000/ixdp2800.c
index a2e7c393e74f..b415febd2025 100644
--- a/arch/arm/mach-ixp2000/ixdp2800.c
+++ b/arch/arm/mach-ixp2000/ixdp2800.c
@@ -262,14 +262,14 @@ int __init ixdp2800_pci_init(void)
                 pci_common_init(&ixdp2800_pci);
                 if (ixdp2x00_master_npu()) {
                         dev = pci_get_bus_and_slot(1, IXDP2800_SLAVE_ENET_DEVFN);
-                        pci_remove_bus_device(dev);
+                        pci_stop_and_remove_bus_device(dev);
                         pci_dev_put(dev);
 
                         ixdp2800_master_enable_slave();
                         ixdp2800_master_wait_for_slave_bus_scan();
                 } else {
                         dev = pci_get_bus_and_slot(1, IXDP2800_MASTER_ENET_DEVFN);
-                        pci_remove_bus_device(dev);
+                        pci_stop_and_remove_bus_device(dev);
                         pci_dev_put(dev);
                 }
         }
diff --git a/arch/arm/mach-ixp2000/ixdp2x00.c b/arch/arm/mach-ixp2000/ixdp2x00.c
index 634b6c852f68..dd9838299068 100644
--- a/arch/arm/mach-ixp2000/ixdp2x00.c
+++ b/arch/arm/mach-ixp2000/ixdp2x00.c
@@ -239,12 +239,12 @@ void ixdp2x00_slave_pci_postinit(void)
          * Remove PMC device is there is one
          */
         if((dev = pci_get_bus_and_slot(1, IXDP2X00_PMC_DEVFN))) {
-                pci_remove_bus_device(dev);
+                pci_stop_and_remove_bus_device(dev);
                 pci_dev_put(dev);
         }
 
         dev = pci_get_bus_and_slot(0, IXDP2X00_21555_DEVFN);
-        pci_remove_bus_device(dev);
+        pci_stop_and_remove_bus_device(dev);
         pci_dev_put(dev);
 }
 
diff --git a/arch/arm/mach-ixp2000/pci.c b/arch/arm/mach-ixp2000/pci.c
index 626fda435aa9..49c36f3cd602 100644
--- a/arch/arm/mach-ixp2000/pci.c
+++ b/arch/arm/mach-ixp2000/pci.c
@@ -243,8 +243,10 @@ int ixp2000_pci_setup(int nr, struct pci_sys_data *sys)
         if (nr >= 1)
                 return 0;
 
-        pci_add_resource(&sys->resources, &ixp2000_pci_io_space);
-        pci_add_resource(&sys->resources, &ixp2000_pci_mem_space);
+        pci_add_resource_offset(&sys->resources,
+                                &ixp2000_pci_io_space, sys->io_offset);
+        pci_add_resource_offset(&sys->resources,
+                                &ixp2000_pci_mem_space, sys->mem_offset);
 
         return 1;
 }
diff --git a/arch/arm/mach-ixp23xx/pci.c b/arch/arm/mach-ixp23xx/pci.c
index 25b5c462cea2..3cbbd3208fa8 100644
--- a/arch/arm/mach-ixp23xx/pci.c
+++ b/arch/arm/mach-ixp23xx/pci.c
@@ -281,8 +281,10 @@ int ixp23xx_pci_setup(int nr, struct pci_sys_data *sys)
         if (nr >= 1)
                 return 0;
 
-        pci_add_resource(&sys->resources, &ixp23xx_pci_io_space);
-        pci_add_resource(&sys->resources, &ixp23xx_pci_mem_space);
+        pci_add_resource_offset(&sys->resources,
+                                &ixp23xx_pci_io_space, sys->io_offset);
+        pci_add_resource_offset(&sys->resources,
+                                &ixp23xx_pci_mem_space, sys->mem_offset);
 
         return 1;
 }
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index 5eff15f24bc2..8508882b13f0 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -472,8 +472,8 @@ int ixp4xx_setup(int nr, struct pci_sys_data *sys)
         request_resource(&ioport_resource, &res[0]);
         request_resource(&iomem_resource, &res[1]);
 
-        pci_add_resource(&sys->resources, &res[0]);
-        pci_add_resource(&sys->resources, &res[1]);
+        pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
+        pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
 
         platform_notify = ixp4xx_pci_platform_notify;
         platform_notify_remove = ixp4xx_pci_platform_notify_remove;
diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
index a066a6d8d9d2..f56a0118c1bb 100644
--- a/arch/arm/mach-kirkwood/pcie.c
+++ b/arch/arm/mach-kirkwood/pcie.c
@@ -198,9 +198,9 @@ 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);
 
-        pci_add_resource(&sys->resources, &pp->res[0]);
-        pci_add_resource(&sys->resources, &pp->res[1]);
         sys->io_offset = 0;
+        pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset);
+        pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset);
 
         /*
          * Generic PCIe unit setup.
diff --git a/arch/arm/mach-ks8695/pci.c b/arch/arm/mach-ks8695/pci.c
index b26f992071df..acc701435817 100644
--- a/arch/arm/mach-ks8695/pci.c
+++ b/arch/arm/mach-ks8695/pci.c
@@ -169,8 +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);
 
-        pci_add_resource(&sys->resources, &pci_io);
-        pci_add_resource(&sys->resources, &pci_mem);
+        pci_add_resource_offset(&sys->resources, &pci_io, sys->io_offset);
+        pci_add_resource_offset(&sys->resources, &pci_mem, sys->mem_offset);
 
         /* 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 8459f6d7d8ca..df3e38055a24 100644
--- a/arch/arm/mach-mv78xx0/pcie.c
+++ b/arch/arm/mach-mv78xx0/pcie.c
@@ -155,8 +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);
 
-        pci_add_resource(&sys->resources, &pp->res[0]);
-        pci_add_resource(&sys->resources, &pp->res[1]);
+        pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset);
+        pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset);
 
         return 1;
 }
diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c
index 09a045f0c406..d6a91948e4dc 100644
--- a/arch/arm/mach-orion5x/pci.c
+++ b/arch/arm/mach-orion5x/pci.c
@@ -171,13 +171,14 @@ static int __init pcie_setup(struct pci_sys_data *sys)
         /*
          * IORESOURCE_IO
          */
+        sys->io_offset = 0;
         res[0].name = "PCIe I/O Space";
         res[0].flags = IORESOURCE_IO;
         res[0].start = ORION5X_PCIE_IO_BUS_BASE;
         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");
-        pci_add_resource(&sys->resources, &res[0]);
+        pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
 
         /*
          * IORESOURCE_MEM
@@ -188,9 +189,7 @@ 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");
-        pci_add_resource(&sys->resources, &res[1]);
-
-        sys->io_offset = 0;
+        pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
 
         return 1;
 }
@@ -499,13 +498,14 @@ static int __init pci_setup(struct pci_sys_data *sys)
         /*
          * IORESOURCE_IO
          */
+        sys->io_offset = 0;
         res[0].name = "PCI I/O Space";
         res[0].flags = IORESOURCE_IO;
         res[0].start = ORION5X_PCI_IO_BUS_BASE;
         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");
-        pci_add_resource(&sys->resources, &res[0]);
+        pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
 
         /*
          * IORESOURCE_MEM
@@ -516,9 +516,7 @@ 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");
-        pci_add_resource(&sys->resources, &res[1]);
-
-        sys->io_offset = 0;
+        pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
 
         return 1;
 }
diff --git a/arch/arm/mach-sa1100/pci-nanoengine.c b/arch/arm/mach-sa1100/pci-nanoengine.c
index 0d01ca788922..b466bca9c651 100644
--- a/arch/arm/mach-sa1100/pci-nanoengine.c
+++ b/arch/arm/mach-sa1100/pci-nanoengine.c
@@ -244,9 +244,11 @@ static int __init pci_nanoengine_setup_resources(struct pci_sys_data *sys)
                 printk(KERN_ERR "PCI: unable to allocate prefetchable\n");
                 return -EBUSY;
         }
-        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);
+        pci_add_resource_offset(&sys->resources, &pci_io_ports, sys->io_offset);
+        pci_add_resource_offset(&sys->resources,
+                                &pci_non_prefetchable_memory, sys->mem_offset);
+        pci_add_resource_offset(&sys->resources,
+                                &pci_prefetchable_memory, sys->mem_offset);
 
         return 1;
 }
diff --git a/arch/arm/mach-tegra/pcie.c b/arch/arm/mach-tegra/pcie.c
index af8b63435727..14b29ab5d8f0 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");
-        pci_add_resource(&sys->resources, &pp->res[0]);
+        pci_add_resource_offset(&sys->resources, &pp->res[0], sys->io_offset);
 
         /*
          * 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");
-        pci_add_resource(&sys->resources, &pp->res[1]);
+        pci_add_resource_offset(&sys->resources, &pp->res[1], sys->mem_offset);
 
         /*
          * 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");
-        pci_add_resource(&sys->resources, &pp->res[2]);
+        pci_add_resource_offset(&sys->resources, &pp->res[2], sys->mem_offset);
 
         return 1;
 }
diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c
index 90069bce23bc..51733b022d04 100644
--- a/arch/arm/mach-versatile/pci.c
+++ b/arch/arm/mach-versatile/pci.c
@@ -219,9 +219,9 @@ static int __init pci_versatile_setup_resources(struct list_head *resources)
          * the mem resource for this bus
          * the prefetch mem resource for this bus
          */
-        pci_add_resource(resources, &io_mem);
-        pci_add_resource(resources, &non_mem);
-        pci_add_resource(resources, &pre_mem);
+        pci_add_resource_offset(resources, &io_mem, sys->io_offset);
+        pci_add_resource_offset(resources, &non_mem, sys->mem_offset);
+        pci_add_resource_offset(resources, &pre_mem, sys->mem_offset);
 
         goto out;
 
diff --git a/arch/arm/mm/iomap.c b/arch/arm/mm/iomap.c
index e62956e12030..4614208369f1 100644
--- a/arch/arm/mm/iomap.c
+++ b/arch/arm/mm/iomap.c
@@ -32,9 +32,6 @@ EXPORT_SYMBOL(pcibios_min_io);
 unsigned long pcibios_min_mem = 0x01000000;
 EXPORT_SYMBOL(pcibios_min_mem);
 
-unsigned int pci_flags = PCI_REASSIGN_ALL_RSRC;
-EXPORT_SYMBOL(pci_flags);
-
 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 {
         if ((unsigned long)addr >= VMALLOC_START &&
diff --git a/arch/arm/plat-iop/pci.c b/arch/arm/plat-iop/pci.c
index f4d40a27111e..72768356447a 100644
--- a/arch/arm/plat-iop/pci.c
+++ b/arch/arm/plat-iop/pci.c
@@ -215,8 +215,8 @@ 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;
 
-        pci_add_resource(&sys->resources, &res[0]);
-        pci_add_resource(&sys->resources, &res[1]);
+        pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset);
+        pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset);
 
         return 1;
 }
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index 279b38ae74aa..b22e5f5fa593 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -108,12 +108,6 @@ static inline int pci_proc_domain(struct pci_bus *bus)
         return (pci_domain_nr(bus) != 0);
 }
 
-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);
-
 static inline struct resource *
 pcibios_select_root(struct pci_dev *pdev, struct resource *res)
 {
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index f82f5d4b65fd..d1ce3200147c 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -320,7 +320,8 @@ static __devinit acpi_status add_window(struct acpi_resource *res, void *data)
          * 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_add_resource_offset(&info->resources, &window->resource,
+                                        window->offset);
 
         return AE_OK;
 }
@@ -395,54 +396,6 @@ out1:
         return NULL;
 }
 
-void pcibios_resource_to_bus(struct pci_dev *dev,
-                struct pci_bus_region *region, struct resource *res)
-{
-        struct pci_controller *controller = PCI_CONTROLLER(dev);
-        unsigned long offset = 0;
-        int i;
-
-        for (i = 0; i < controller->windows; i++) {
-                struct pci_window *window = &controller->window[i];
-                if (!(window->resource.flags & res->flags))
-                        continue;
-                if (window->resource.start > res->start)
-                        continue;
-                if (window->resource.end < res->end)
-                        continue;
-                offset = window->offset;
-                break;
-        }
-
-        region->start = res->start - offset;
-        region->end = res->end - offset;
-}
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-
-void pcibios_bus_to_resource(struct pci_dev *dev,
-                struct resource *res, struct pci_bus_region *region)
-{
-        struct pci_controller *controller = PCI_CONTROLLER(dev);
-        unsigned long offset = 0;
-        int i;
-
-        for (i = 0; i < controller->windows; i++) {
-                struct pci_window *window = &controller->window[i];
-                if (!(window->resource.flags & res->flags))
-                        continue;
-                if (window->resource.start - window->offset > region->start)
-                        continue;
-                if (window->resource.end - window->offset < region->end)
-                        continue;
-                offset = window->offset;
-                break;
-        }
-
-        res->start = region->start + offset;
-        res->end = region->end + offset;
-}
-EXPORT_SYMBOL(pcibios_bus_to_resource);
-
 static int __devinit is_valid_resource(struct pci_dev *dev, int idx)
 {
         unsigned int i, type_mask = IORESOURCE_IO | IORESOURCE_MEM;
@@ -464,15 +417,11 @@ static int __devinit is_valid_resource(struct pci_dev *dev, int idx)
 static void __devinit
 pcibios_fixup_resources(struct pci_dev *dev, int start, int limit)
 {
-        struct pci_bus_region region;
         int i;
 
         for (i = start; i < limit; i++) {
                 if (!dev->resource[i].flags)
                         continue;
-                region.start = dev->resource[i].start;
-                region.end = dev->resource[i].end;
-                pcibios_bus_to_resource(dev, &dev->resource[i], &region);
                 if ((is_valid_resource(dev, i)))
                         pci_claim_resource(dev, i);
         }
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index 0a36f082eaf1..238e2c511d94 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -297,7 +297,8 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
         s64 status = 0;
         struct pci_controller *controller;
         struct pcibus_bussoft *prom_bussoft_ptr;
-
+        LIST_HEAD(resources);
+        int i;
 
         status = sal_get_pcibus_info((u64) segment, (u64) busnum,
                                      (u64) ia64_tpa(&prom_bussoft_ptr));
@@ -315,7 +316,15 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
          */
         controller->platform_data = prom_bussoft_ptr;
 
-        bus = pci_scan_bus(busnum, &pci_root_ops, controller);
+        sn_legacy_pci_window_fixup(controller,
+                                   prom_bussoft_ptr->bs_legacy_io,
+                                   prom_bussoft_ptr->bs_legacy_mem);
+        for (i = 0; i < controller->windows; i++)
+                pci_add_resource_offset(&resources,
+                                        &controller->window[i].resource,
+                                        controller->window[i].offset);
+        bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, controller,
+                                &resources);
         if (bus == NULL)
                 goto error_return; /* error, or bus already scanned */
 
@@ -348,9 +357,6 @@ sn_bus_fixup(struct pci_bus *bus)
                         return;
                 }
                 sn_common_bus_fixup(bus, prom_bussoft_ptr);
-                sn_legacy_pci_window_fixup(PCI_CONTROLLER(bus),
-                                           prom_bussoft_ptr->bs_legacy_io,
-                                           prom_bussoft_ptr->bs_legacy_mem);
         }
         list_for_each_entry(pci_dev, &bus->devices, bus_list) {
                 sn_io_slot_fixup(pci_dev);
diff --git a/arch/microblaze/include/asm/pci-bridge.h b/arch/microblaze/include/asm/pci-bridge.h
index e9834b2991d0..cb5d39794800 100644
--- a/arch/microblaze/include/asm/pci-bridge.h
+++ b/arch/microblaze/include/asm/pci-bridge.h
@@ -10,7 +10,6 @@
 #include <linux/pci.h>
 #include <linux/list.h>
 #include <linux/ioport.h>
-#include <asm-generic/pci-bridge.h>
 
 struct device_node;
 
diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
index 033137628e8a..a0da88bf70c5 100644
--- a/arch/microblaze/include/asm/pci.h
+++ b/arch/microblaze/include/asm/pci.h
@@ -94,14 +94,6 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
  */
 #define PCI_DMA_BUS_IS_PHYS     (1)
 
-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);
-
 static inline struct resource *pcibios_select_root(struct pci_dev *pdev,
                         struct resource *res)
 {
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 85f2ac1230a8..d10403dadd2b 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -46,9 +46,6 @@ static int global_phb_number;		/* Global phb counter */
 /* ISA Memory physical address */
 resource_size_t isa_mem_base;
 
-/* Default PCI flags is 0 on ppc32, modified at boot on ppc64 */
-unsigned int pci_flags;
-
 static struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
 
 unsigned long isa_io_base;
@@ -833,64 +830,7 @@ int pci_proc_domain(struct pci_bus *bus)
 {
         struct pci_controller *hose = pci_bus_to_host(bus);
 
-        if (!(pci_flags & PCI_ENABLE_PROC_DOMAINS))
-                return 0;
-        if (pci_flags & PCI_COMPAT_DOMAIN_0)
-                return hose->global_number != 0;
-        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;
+        return 0;
 }
 
 /* This header fixup will do the resource fixup for all devices as they are
@@ -910,13 +850,7 @@ static void __devinit pcibios_fixup_resources(struct pci_dev *dev)
                 struct resource *res = dev->resource + i;
                 if (!res->flags)
                         continue;
-                /* On platforms that have PCI_PROBE_ONLY set, we don't
-                 * consider 0 as an unassigned BAR value. It's technically
-                 * a valid value, but linux doesn't like it... so when we can
-                 * re-assign things, we do so, but if we can't, we keep it
-                 * around and hope for the best...
-                 */
-                if (res->start == 0 && !(pci_flags & PCI_PROBE_ONLY)) {
+                if (res->start == 0) {
                         pr_debug("PCI:%s Resource %d %016llx-%016llx [%x]" \
                                                         "is unassigned\n",
                                  pci_name(dev), i,
@@ -929,18 +863,11 @@ 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);
         }
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_fixup_resources);
@@ -959,10 +886,6 @@ static int __devinit pcibios_uninitialized_bridge_resource(struct pci_bus *bus,
         u16 command;
         int i;
 
-        /* We don't do anything if PCI_PROBE_ONLY is set */
-        if (pci_flags & PCI_PROBE_ONLY)
-                return 0;
-
         /* Job is a bit different between memory and IO */
         if (res->flags & IORESOURCE_MEM) {
                 /* If the BAR is non-0 (res != pci_mem_offset) then it's
@@ -1037,9 +960,6 @@ static void __devinit pcibios_fixup_bridge(struct pci_bus *bus)
                          (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
                  */
@@ -1107,9 +1027,6 @@ EXPORT_SYMBOL(pcibios_fixup_bus);
 
 static int skip_isa_ioresource_align(struct pci_dev *dev)
 {
-        if ((pci_flags & PCI_CAN_SKIP_ISA_ALIGN) &&
-            !(dev->bus->bridge_ctl & PCI_BRIDGE_CTL_ISA))
-                return 1;
         return 0;
 }
 
@@ -1236,8 +1153,6 @@ void pcibios_allocate_bus_resources(struct pci_bus *bus)
                          * and as such ensure proper re-allocation
                          * later.
                          */
-                        if (pci_flags & PCI_REASSIGN_ALL_RSRC)
-                                goto clear_resource;
                         pr = pci_find_parent_resource(bus->self, res);
                         if (pr == res) {
                                 /* this happens when the generic PCI
@@ -1422,27 +1337,19 @@ void __init pcibios_resource_survey(void)
         list_for_each_entry(b, &pci_root_buses, node)
                 pcibios_allocate_bus_resources(b);
 
-        if (!(pci_flags & PCI_REASSIGN_ALL_RSRC)) {
-                pcibios_allocate_resources(0);
-                pcibios_allocate_resources(1);
-        }
+        pcibios_allocate_resources(0);
+        pcibios_allocate_resources(1);
 
         /* Before we start assigning unassigned resource, we try to reserve
          * the low IO area and the VGA memory area if they intersect the
          * bus available resources to avoid allocating things on top of them
          */
-        if (!(pci_flags & PCI_PROBE_ONLY)) {
-                list_for_each_entry(b, &pci_root_buses, node)
-                        pcibios_reserve_legacy_regions(b);
-        }
+        list_for_each_entry(b, &pci_root_buses, node)
+                pcibios_reserve_legacy_regions(b);
 
-        /* Now, if the platform didn't decide to blindly trust the firmware,
-         * we proceed to assigning things that were left unassigned
-         */
-        if (!(pci_flags & PCI_PROBE_ONLY)) {
-                pr_debug("PCI: Assigning unassigned resources...\n");
-                pci_assign_unassigned_resources();
-        }
+        /* Now proceed to assigning things that were left unassigned */
+        pr_debug("PCI: Assigning unassigned resources...\n");
+        pci_assign_unassigned_resources();
 }
 
 #ifdef CONFIG_HOTPLUG
@@ -1535,7 +1442,7 @@ static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose, s
                 res->end = res->start + IO_SPACE_LIMIT;
                 res->flags = IORESOURCE_IO;
         }
-        pci_add_resource(resources, res);
+        pci_add_resource_offset(resources, res, hose->io_base_virt - _IO_BASE);
 
         pr_debug("PCI: PHB IO resource    = %016llx-%016llx [%lx]\n",
                  (unsigned long long)res->start,
@@ -1558,7 +1465,7 @@ static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose, s
                         res->flags = IORESOURCE_MEM;
 
                 }
-                pci_add_resource(resources, res);
+                pci_add_resource_offset(resources, res, hose->pci_mem_offset);
 
                 pr_debug("PCI: PHB MEM resource %d = %016llx-%016llx [%lx]\n",
                         i, (unsigned long long)res->start,
diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
index 576397c69920..fcd4060f6421 100644
--- a/arch/mips/include/asm/pci.h
+++ b/arch/mips/include/asm/pci.h
@@ -92,6 +92,7 @@ extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
 #include <asm/scatterlist.h>
 #include <linux/string.h>
 #include <asm/io.h>
+#include <asm-generic/pci-bridge.h>
 
 struct pci_dev;
 
@@ -112,12 +113,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 }
 #endif
 
-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 pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
 
 static inline int pci_proc_domain(struct pci_bus *bus)
@@ -145,8 +140,6 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 #define arch_setup_msi_irqs arch_setup_msi_irqs
 #endif
 
-extern int pci_probe_only;
-
 extern char * (*pcibios_plat_setup)(char *str);
 
 #endif /* _ASM_PCI_H */
diff --git a/arch/mips/pci/fixup-cobalt.c b/arch/mips/pci/fixup-cobalt.c
index acacd1407c63..9553b14002dd 100644
--- a/arch/mips/pci/fixup-cobalt.c
+++ b/arch/mips/pci/fixup-cobalt.c
@@ -51,67 +51,6 @@ static void qube_raq_galileo_early_fixup(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_MARVELL, PCI_DEVICE_ID_MARVELL_GT64111,
          qube_raq_galileo_early_fixup);
 
-static void __devinit cobalt_legacy_ide_resource_fixup(struct pci_dev *dev,
-                                                       struct resource *res)
-{
-        struct pci_controller *hose = (struct pci_controller *)dev->sysdata;
-        unsigned long offset = hose->io_offset;
-        struct resource orig = *res;
-
-        if (!(res->flags & IORESOURCE_IO) ||
-            !(res->flags & IORESOURCE_PCI_FIXED))
-                return;
-
-        res->start -= offset;
-        res->end -= offset;
-        dev_printk(KERN_DEBUG, &dev->dev, "converted legacy %pR to bus %pR\n",
-                   &orig, res);
-}
-
-static void __devinit cobalt_legacy_ide_fixup(struct pci_dev *dev)
-{
-        u32 class;
-        u8 progif;
-
-        /*
-         * If the IDE controller is in legacy mode, pci_setup_device() fills in
-         * the resources with the legacy addresses that normally appear on the
-         * PCI bus, just as if we had read them from a BAR.
-         *
-         * However, with the GT-64111, those legacy addresses, e.g., 0x1f0,
-         * will never appear on the PCI bus because it converts memory accesses
-         * in the PCI I/O region (which is never at address zero) into I/O port
-         * accesses with no address translation.
-         *
-         * For example, if GT_DEF_PCI0_IO_BASE is 0x10000000, a load or store
-         * to physical address 0x100001f0 will become a PCI access to I/O port
-         * 0x100001f0.  There's no way to generate an access to I/O port 0x1f0,
-         * but the VT82C586 IDE controller does respond at 0x100001f0 because
-         * it only decodes the low 24 bits of the address.
-         *
-         * When this quirk runs, the pci_dev resources should contain bus
-         * addresses, not Linux I/O port numbers, so convert legacy addresses
-         * like 0x1f0 to bus addresses like 0x100001f0.  Later, we'll convert
-         * them back with pcibios_fixup_bus() or pcibios_bus_to_resource().
-         */
-        class = dev->class >> 8;
-        if (class != PCI_CLASS_STORAGE_IDE)
-                return;
-
-        pci_read_config_byte(dev, PCI_CLASS_PROG, &progif);
-        if ((progif & 1) == 0) {
-                cobalt_legacy_ide_resource_fixup(dev, &dev->resource[0]);
-                cobalt_legacy_ide_resource_fixup(dev, &dev->resource[1]);
-        }
-        if ((progif & 4) == 0) {
-                cobalt_legacy_ide_resource_fixup(dev, &dev->resource[2]);
-                cobalt_legacy_ide_resource_fixup(dev, &dev->resource[3]);
-        }
-}
-
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1,
-          cobalt_legacy_ide_fixup);
-
 static void qube_raq_via_bmIDE_fixup(struct pci_dev *dev)
 {
         unsigned short cfgword;
diff --git a/arch/mips/pci/pci-bcm1480.c b/arch/mips/pci/pci-bcm1480.c
index af8c31996965..37b52dc3d27e 100644
--- a/arch/mips/pci/pci-bcm1480.c
+++ b/arch/mips/pci/pci-bcm1480.c
@@ -204,7 +204,7 @@ static int __init bcm1480_pcibios_init(void)
         uint64_t reg;
 
         /* CFE will assign PCI resources */
-        pci_probe_only = 1;
+        pci_set_flags(PCI_PROBE_ONLY);
 
         /* Avoid ISA compat ranges.  */
         PCIBIOS_MIN_IO = 0x00008000UL;
diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c
index 193e9494f98e..0fbe4c0c170a 100644
--- a/arch/mips/pci/pci-ip27.c
+++ b/arch/mips/pci/pci-ip27.c
@@ -50,7 +50,7 @@ int __cpuinit bridge_probe(nasid_t nasid, int widget_id, int masterwid)
         bridge_t *bridge;
         int slot;
 
-        pci_probe_only = 1;
+        pci_set_flags(PCI_PROBE_ONLY);
 
         printk("a bridge\n");
 
diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c
index be1e1afe12c3..030c77e7926e 100644
--- a/arch/mips/pci/pci-lantiq.c
+++ b/arch/mips/pci/pci-lantiq.c
@@ -270,7 +270,8 @@ static int __devinit ltq_pci_probe(struct platform_device *pdev)
 {
         struct ltq_pci_data *ltq_pci_data =
                 (struct ltq_pci_data *) pdev->dev.platform_data;
-        pci_probe_only = 0;
+
+        pci_clear_flags(PCI_PROBE_ONLY);
         ltq_pci_irq_map = ltq_pci_data->irq;
         ltq_pci_membase = ioremap_nocache(PCI_CR_BASE_ADDR, PCI_CR_SIZE);
         ltq_pci_mapped_cfg =
diff --git a/arch/mips/pci/pci-sb1250.c b/arch/mips/pci/pci-sb1250.c
index 1711e8e101bc..dd97f3a83baa 100644
--- a/arch/mips/pci/pci-sb1250.c
+++ b/arch/mips/pci/pci-sb1250.c
@@ -213,7 +213,7 @@ static int __init sb1250_pcibios_init(void)
         uint64_t reg;
 
         /* CFE will assign PCI resources */
-        pci_probe_only = 1;
+        pci_set_flags(PCI_PROBE_ONLY);
 
         /* Avoid ISA compat ranges.  */
         PCIBIOS_MIN_IO = 0x00008000UL;
diff --git a/arch/mips/pci/pci-xlr.c b/arch/mips/pci/pci-xlr.c
index 3d701a962ef4..1644805a6730 100644
--- a/arch/mips/pci/pci-xlr.c
+++ b/arch/mips/pci/pci-xlr.c
@@ -292,7 +292,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
 static int __init pcibios_init(void)
 {
         /* PSB assigns PCI resources */
-        pci_probe_only = 1;
+        pci_set_flags(PCI_PROBE_ONLY);
         pci_config_base = ioremap(DEFAULT_PCI_CONFIG_BASE, 16 << 20);
 
         /* Extend IO port for memory mapped io */
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index 15521505ebe8..0514866fa925 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -20,16 +20,9 @@
 #include <asm/cpu-info.h>
 
 /*
- * Indicate whether we respect the PCI setup left by the firmware.
- *
- * Make this long-lived  so that we know when shutting down
- * whether we probed only or not.
+ * If PCI_PROBE_ONLY in pci_flags is set, we don't change any PCI resource
+ * assignments.
  */
-int pci_probe_only;
-
-#define PCI_ASSIGN_ALL_BUSSES   1
-
-unsigned int pci_probe = PCI_ASSIGN_ALL_BUSSES;
 
 /*
  * The PCI controller list.
@@ -92,11 +85,12 @@ static void __devinit pcibios_scanbus(struct pci_controller *hose)
         if (!hose->iommu)
                 PCI_DMA_BUS_IS_PHYS = 1;
 
-        if (hose->get_busno && pci_probe_only)
+        if (hose->get_busno && pci_has_flag(PCI_PROBE_ONLY))
                 next_busno = (*hose->get_busno)();
 
-        pci_add_resource(&resources, hose->mem_resource);
-        pci_add_resource(&resources, hose->io_resource);
+        pci_add_resource_offset(&resources,
+                                hose->mem_resource, hose->mem_offset);
+        pci_add_resource_offset(&resources, hose->io_resource, hose->io_offset);
         bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose,
                                 &resources);
         if (!bus)
@@ -115,7 +109,7 @@ static void __devinit pcibios_scanbus(struct pci_controller *hose)
                         need_domain_info = 1;
                 }
 
-                if (!pci_probe_only) {
+                if (!pci_has_flag(PCI_PROBE_ONLY)) {
                         pci_bus_size_bridges(bus);
                         pci_bus_assign_resources(bus);
                         pci_enable_bridges(bus);
@@ -241,7 +235,7 @@ static int pcibios_enable_resources(struct pci_dev *dev, int mask)
 
 unsigned int pcibios_assign_all_busses(void)
 {
-        return (pci_probe & PCI_ASSIGN_ALL_BUSSES) ? 1 : 0;
+        return 1;
 }
 
 int pcibios_enable_device(struct pci_dev *dev, int mask)
@@ -254,42 +248,13 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
         return pcibios_plat_dev_init(dev);
 }
 
-static void pcibios_fixup_device_resources(struct pci_dev *dev,
-        struct pci_bus *bus)
-{
-        /* Update device resources.  */
-        struct pci_controller *hose = (struct pci_controller *)bus->sysdata;
-        unsigned long offset = 0;
-        int i;
-
-        for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-                if (!dev->resource[i].start)
-                        continue;
-                if (dev->resource[i].flags & IORESOURCE_IO)
-                        offset = hose->io_offset;
-                else if (dev->resource[i].flags & IORESOURCE_MEM)
-                        offset = hose->mem_offset;
-
-                dev->resource[i].start += offset;
-                dev->resource[i].end += offset;
-        }
-}
-
 void __devinit pcibios_fixup_bus(struct pci_bus *bus)
 {
-        /* Propagate hose info into the subordinate devices.  */
-
         struct pci_dev *dev = bus->self;
 
-        if (pci_probe_only && dev &&
+        if (pci_has_flag(PCI_PROBE_ONLY) && dev &&
             (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
                 pci_read_bridge_bases(bus);
-                pcibios_fixup_device_resources(dev, bus);
-        }
-
-        list_for_each_entry(dev, &bus->devices, bus_list) {
-                if ((dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
-                        pcibios_fixup_device_resources(dev, bus);
         }
 }
 
@@ -299,40 +264,7 @@ pcibios_update_irq(struct pci_dev *dev, int irq)
         pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
 }
 
-void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
-                         struct resource *res)
-{
-        struct pci_controller *hose = (struct pci_controller *)dev->sysdata;
-        unsigned long offset = 0;
-
-        if (res->flags & IORESOURCE_IO)
-                offset = hose->io_offset;
-        else if (res->flags & IORESOURCE_MEM)
-                offset = hose->mem_offset;
-
-        region->start = res->start - offset;
-        region->end = res->end - offset;
-}
-
-void __devinit
-pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-                        struct pci_bus_region *region)
-{
-        struct pci_controller *hose = (struct pci_controller *)dev->sysdata;
-        unsigned long offset = 0;
-
-        if (res->flags & IORESOURCE_IO)
-                offset = hose->io_offset;
-        else if (res->flags & IORESOURCE_MEM)
-                offset = hose->mem_offset;
-
-        res->start = region->start + offset;
-        res->end = region->end + offset;
-}
-
 #ifdef CONFIG_HOTPLUG
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-EXPORT_SYMBOL(pcibios_bus_to_resource);
 EXPORT_SYMBOL(PCIBIOS_MIN_IO);
 EXPORT_SYMBOL(PCIBIOS_MIN_MEM);
 #endif
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index 6095a28561dd..8137c25c4e15 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -85,22 +85,6 @@ extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
 /* implement the pci_ DMA API in terms of the generic device dma_ one */
 #include <asm-generic/pci-dma-compat.h>
 
-/**
- * pcibios_resource_to_bus - convert resource to PCI bus address
- * @dev: device which owns this resource
- * @region: converted bus-centric region (start,end)
- * @res: resource to convert
- *
- * Convert a resource to a PCI device bus address or bus window.
- */
-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);
-
 static inline struct resource *
 pcibios_select_root(struct pci_dev *pdev, struct resource *res)
 {
diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c
index a7c5f08ca9f5..6dce9fc2cf3c 100644
--- a/arch/mn10300/unit-asb2305/pci.c
+++ b/arch/mn10300/unit-asb2305/pci.c
@@ -32,8 +32,7 @@ struct pci_ops *pci_root_ops;
  * insert specific PCI bus resources instead of using the platform-level bus
  * resources directly for the PCI root bus.
  *
- * These are configured and inserted by pcibios_init() and are attached to the
- * root bus by pcibios_fixup_bus().
+ * These are configured and inserted by pcibios_init().
  */
 static struct resource pci_ioport_resource = {
         .name   = "PCI IO",
@@ -78,52 +77,6 @@ static inline int __query(const struct pci_bus *bus, unsigned int devfn)
 }
 
 /*
- * translate Linuxcentric addresses to PCI bus addresses
- */
-void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
-                             struct resource *res)
-{
-        if (res->flags & IORESOURCE_IO) {
-                region->start = (res->start & 0x00ffffff);
-                region->end   = (res->end   & 0x00ffffff);
-        }
-
-        if (res->flags & IORESOURCE_MEM) {
-                region->start = (res->start & 0x03ffffff) | MEM_PAGING_REG;
-                region->end   = (res->end   & 0x03ffffff) | MEM_PAGING_REG;
-        }
-
-#if 0
-        printk(KERN_DEBUG "RES->BUS: %lx-%lx => %lx-%lx\n",
-               res->start, res->end, region->start, region->end);
-#endif
-}
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-
-/*
- * translate PCI bus addresses to Linuxcentric addresses
- */
-void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-                             struct pci_bus_region *region)
-{
-        if (res->flags & IORESOURCE_IO) {
-                res->start = (region->start & 0x00ffffff) | 0xbe000000;
-                res->end   = (region->end   & 0x00ffffff) | 0xbe000000;
-        }
-
-        if (res->flags & IORESOURCE_MEM) {
-                res->start = (region->start & 0x03ffffff) | 0xb8000000;
-                res->end   = (region->end   & 0x03ffffff) | 0xb8000000;
-        }
-
-#if 0
-        printk(KERN_INFO "BUS->RES: %lx-%lx => %lx-%lx\n",
-               region->start, region->end, res->start, res->end);
-#endif
-}
-EXPORT_SYMBOL(pcibios_bus_to_resource);
-
-/*
  *
  */
 static int pci_ampci_read_config_byte(struct pci_bus *bus, unsigned int devfn,
@@ -364,9 +317,6 @@ static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
                 if (!dev->resource[i].flags)
                         continue;
 
-                region.start = dev->resource[i].start;
-                region.end = dev->resource[i].end;
-                pcibios_bus_to_resource(dev, &dev->resource[i], &region);
                 if (is_valid_resource(dev, i))
                         pci_claim_resource(dev, i);
         }
@@ -397,6 +347,7 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus)
  */
 static int __init pcibios_init(void)
 {
+        resource_size_t io_offset, mem_offset;
         LIST_HEAD(resources);
 
         ioport_resource.start   = 0xA0000000;
@@ -420,8 +371,13 @@ static int __init pcibios_init(void)
         printk(KERN_INFO "PCI: Probing PCI hardware [mempage %08x]\n",
                MEM_PAGING_REG);
 
-        pci_add_resource(&resources, &pci_ioport_resource);
-        pci_add_resource(&resources, &pci_iomem_resource);
+        io_offset = pci_ioport_resource.start -
+            (pci_ioport_resource.start & 0x00ffffff);
+        mem_offset = pci_iomem_resource.start -
+            ((pci_iomem_resource.start & 0x03ffffff) | MEM_PAGING_REG);
+
+        pci_add_resource_offset(&resources, &pci_ioport_resource, io_offset);
+        pci_add_resource_offset(&resources, &pci_iomem_resource, mem_offset);
         pci_root_bus = pci_scan_root_bus(NULL, 0, &pci_direct_ampci, NULL,
                                          &resources);
 
diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 2242a5c636c2..3234f492d575 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -82,38 +82,8 @@ struct pci_hba_data {
 
 #ifdef CONFIG_64BIT
 #define PCI_F_EXTEND            0xffffffff00000000UL
-#define PCI_IS_LMMIO(hba,a)     pci_is_lmmio(hba,a)
-
-/* We need to know if an address is LMMMIO or GMMIO.
- * LMMIO requires mangling and GMMIO we must use as-is.
- */
-static __inline__  int pci_is_lmmio(struct pci_hba_data *hba, unsigned long a)
-{
-        return(((a) & PCI_F_EXTEND) == PCI_F_EXTEND);
-}
-
-/*
-** Convert between PCI (IO_VIEW) addresses and processor (PA_VIEW) addresses.
-** See pci.c for more conversions used by Generic PCI code.
-**
-** Platform characteristics/firmware guarantee that
-**      (1) PA_VIEW - IO_VIEW = lmmio_offset for both LMMIO and ELMMIO
-**      (2) PA_VIEW == IO_VIEW for GMMIO
-*/
-#define PCI_BUS_ADDR(hba,a)     (PCI_IS_LMMIO(hba,a)    \
-                ?  ((a) - hba->lmmio_space_offset)      /* mangle LMMIO */ \
-                : (a))                                  /* GMMIO */
-#define PCI_HOST_ADDR(hba,a)    (((a) & PCI_F_EXTEND) == 0 \
-                ? (a) + hba->lmmio_space_offset \
-                : (a))
-
 #else   /* !CONFIG_64BIT */
-
-#define PCI_BUS_ADDR(hba,a)     (a)
-#define PCI_HOST_ADDR(hba,a)    (a)
 #define PCI_F_EXTEND            0UL
-#define PCI_IS_LMMIO(hba,a)     (1)     /* 32-bit doesn't support GMMIO */
-
 #endif /* !CONFIG_64BIT */
 
 /*
@@ -245,14 +215,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 }
 #endif
 
-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);
-
 static inline void pcibios_penalize_isa_irq(int irq, int active)
 {
         /* We don't need to penalize isa irq's */
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 9efd97405317..74d544b1cd22 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -195,58 +195,6 @@ void __init pcibios_init_bus(struct pci_bus *bus)
         pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bridge_ctl);
 }
 
-/* called by drivers/pci/setup-bus.c:pci_setup_bridge().  */
-void __devinit pcibios_resource_to_bus(struct pci_dev *dev,
-                struct pci_bus_region *region, struct resource *res)
-{
-#ifdef CONFIG_64BIT
-        struct pci_hba_data *hba = HBA_DATA(dev->bus->bridge->platform_data);
-#endif
-
-        if (res->flags & IORESOURCE_IO) {
-                /*
-                ** I/O space may see busnumbers here. Something
-                ** in the form of 0xbbxxxx where bb is the bus num
-                ** and xxxx is the I/O port space address.
-                ** Remaining address translation are done in the
-                ** PCI Host adapter specific code - ie dino_out8.
-                */
-                region->start = PCI_PORT_ADDR(res->start);
-                region->end   = PCI_PORT_ADDR(res->end);
-        } else if (res->flags & IORESOURCE_MEM) {
-                /* Convert MMIO addr to PCI addr (undo global virtualization) */
-                region->start = PCI_BUS_ADDR(hba, res->start);
-                region->end   = PCI_BUS_ADDR(hba, res->end);
-        }
-
-        DBG_RES("pcibios_resource_to_bus(%02x %s [%lx,%lx])\n",
-                dev->bus->number, res->flags & IORESOURCE_IO ? "IO" : "MEM",
-                region->start, region->end);
-}
-
-void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-                              struct pci_bus_region *region)
-{
-#ifdef CONFIG_64BIT
-        struct pci_hba_data *hba = HBA_DATA(dev->bus->bridge->platform_data);
-#endif
-
-        if (res->flags & IORESOURCE_MEM) {
-                res->start = PCI_HOST_ADDR(hba, region->start);
-                res->end = PCI_HOST_ADDR(hba, region->end);
-        }
-
-        if (res->flags & IORESOURCE_IO) {
-                res->start = region->start;
-                res->end = region->end;
-        }
-}
-
-#ifdef CONFIG_HOTPLUG
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-EXPORT_SYMBOL(pcibios_bus_to_resource);
-#endif
-
 /*
  * pcibios align resources() is called every time generic PCI code
  * wants to generate a new address. The process of looking for
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index f54b3d26ce9d..6653f2743c4e 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -154,14 +154,6 @@ 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);
-
 extern void pcibios_claim_one_bus(struct pci_bus *b);
 
 extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
@@ -190,6 +182,7 @@ extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
                                  const struct resource *rsrc,
                                  resource_size_t *start, resource_size_t *end);
 
+extern resource_size_t pcibios_io_space_offset(struct pci_controller *hose);
 extern void pcibios_setup_bus_devices(struct pci_bus *bus);
 extern void pcibios_setup_bus_self(struct pci_bus *bus);
 extern void pcibios_setup_phb_io_space(struct pci_controller *hose);
diff --git a/arch/powerpc/include/asm/ppc-pci.h b/arch/powerpc/include/asm/ppc-pci.h
index e660b37aa7d0..80fa704d410f 100644
--- a/arch/powerpc/include/asm/ppc-pci.h
+++ b/arch/powerpc/include/asm/ppc-pci.h
@@ -45,8 +45,6 @@ extern void init_pci_config_tokens (void);
 extern unsigned long get_phb_buid (struct device_node *);
 extern int rtas_setup_phb(struct pci_controller *phb);
 
-extern unsigned long pci_probe_only;
-
 #ifdef CONFIG_EEH
 
 void pci_addr_cache_build(void);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index d0373bcb7c9d..8e78e93c8185 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -49,9 +49,6 @@ static int global_phb_number;		/* Global phb counter */
 /* ISA Memory physical address */
 resource_size_t isa_mem_base;
 
-/* Default PCI flags is 0 on ppc32, modified at boot on ppc64 */
-unsigned int pci_flags = 0;
-
 
 static struct dma_map_ops *pci_dma_ops = &dma_direct_ops;
 
@@ -834,60 +831,6 @@ 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
  */
@@ -927,18 +870,11 @@ 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 */
@@ -1040,27 +976,18 @@ 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);
                 }
         }
 }
@@ -1550,6 +1477,11 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
         return pci_enable_resources(dev, mask);
 }
 
+resource_size_t pcibios_io_space_offset(struct pci_controller *hose)
+{
+        return (unsigned long) hose->io_base_virt - _IO_BASE;
+}
+
 static void __devinit pcibios_setup_phb_resources(struct pci_controller *hose, struct list_head *resources)
 {
         struct resource *res;
@@ -1574,7 +1506,7 @@ 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, pcibios_io_space_offset(hose));
 
         /* Hookup PHB Memory resources */
         for (i = 0; i < 3; ++i) {
@@ -1597,7 +1529,7 @@ 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",
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index fdd1a3d951dc..4b06ec5a502e 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -219,9 +219,9 @@ void __devinit pcibios_setup_phb_io_space(struct pci_controller *hose)
         struct 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;
+        io_offset = pcibios_io_space_offset(hose);
+        res->start += io_offset;
+        res->end += io_offset;
 }
 
 static int __init pcibios_init(void)
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 3318d39b7d4c..94a54f61d341 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -33,8 +33,6 @@
 #include <asm/machdep.h>
 #include <asm/ppc-pci.h>
 
-unsigned long pci_probe_only = 1;
-
 /* pci_io_base -- the base address from which io bars are offsets.
  * This is the lowest I/O base address (so bar values are always positive),
  * and it *must* be the start of ISA space if an ISA bus exists because
@@ -55,9 +53,6 @@ static int __init pcibios_init(void)
          */
         ppc_md.phys_mem_access_prot = pci_phys_mem_access_prot;
 
-        if (pci_probe_only)
-                pci_add_flags(PCI_PROBE_ONLY);
-
         /* On ppc64, we always enable PCI domains and we keep domain 0
          * backward compatible in /proc for video cards
          */
@@ -173,7 +168,7 @@ static int __devinit pcibios_map_phb_io_space(struct pci_controller *hose)
                 return -ENOMEM;
 
         /* Fixup hose IO resource */
-        io_virt_offset = (unsigned long)hose->io_base_virt - _IO_BASE;
+        io_virt_offset = pcibios_io_space_offset(hose);
         hose->io_resource.start += io_virt_offset;
         hose->io_resource.end += io_virt_offset;
 
diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c
index b37d0b5a796e..89dde171a6fa 100644
--- a/arch/powerpc/kernel/pci_of_scan.c
+++ b/arch/powerpc/kernel/pci_of_scan.c
@@ -75,6 +75,7 @@ static void of_pci_parse_addrs(struct device_node *node, struct pci_dev *dev)
 {
         u64 base, size;
         unsigned int flags;
+        struct pci_bus_region region;
         struct resource *res;
         const u32 *addrs;
         u32 i;
@@ -106,10 +107,11 @@ static void of_pci_parse_addrs(struct device_node *node, struct pci_dev *dev)
                         printk(KERN_ERR "PCI: bad cfg reg num 0x%x\n", i);
                         continue;
                 }
-                res->start = base;
-                res->end = base + size - 1;
                 res->flags = flags;
                 res->name = pci_name(dev);
+                region.start = base;
+                region.end = base + size - 1;
+                pcibios_bus_to_resource(dev, res, &region);
         }
 }
 
@@ -209,6 +211,7 @@ void __devinit of_scan_pci_bridge(struct pci_dev *dev)
         struct pci_bus *bus;
         const u32 *busrange, *ranges;
         int len, i, mode;
+        struct pci_bus_region region;
         struct resource *res;
         unsigned int flags;
         u64 size;
@@ -270,9 +273,10 @@ void __devinit of_scan_pci_bridge(struct pci_dev *dev)
                         res = bus->resource[i];
                         ++i;
                 }
-                res->start = of_read_number(&ranges[1], 2);
-                res->end = res->start + size - 1;
                 res->flags = flags;
+                region.start = of_read_number(&ranges[1], 2);
+                region.end = region.start + size - 1;
+                pcibios_bus_to_resource(dev, res, &region);
         }
         sprintf(bus->name, "PCI Bus %04x:%02x", pci_domain_nr(bus),
                 bus->number);
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 517bd86bc3f0..179af906dcda 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -279,7 +279,7 @@ void __init find_and_init_phbs(void)
         eeh_dev_phb_init();
 
         /*
-         * pci_probe_only and pci_assign_all_buses can be set via properties
+         * PCI_PROBE_ONLY and PCI_REASSIGN_ALL_BUS can be set via properties
          * in chosen.
          */
         if (of_chosen) {
@@ -287,8 +287,12 @@ void __init find_and_init_phbs(void)
 
                 prop = of_get_property(of_chosen,
                                 "linux,pci-probe-only", NULL);
-                if (prop)
-                        pci_probe_only = *prop;
+                if (prop) {
+                        if (*prop)
+                                pci_add_flags(PCI_PROBE_ONLY);
+                        else
+                                pci_clear_flags(PCI_PROBE_ONLY);
+                }
 
 #ifdef CONFIG_PPC32 /* Will be made generic soon */
                 prop = of_get_property(of_chosen,
diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c
index 401e3f3f74c8..465ee8f5c086 100644
--- a/arch/powerpc/platforms/maple/pci.c
+++ b/arch/powerpc/platforms/maple/pci.c
@@ -620,7 +620,7 @@ void __init maple_pci_init(void)
         }
 
         /* Tell pci.c to not change any resource allocations.  */
-        pci_probe_only = 1;
+        pci_add_flags(PCI_PROBE_ONLY);
 }
 
 int maple_pci_get_legacy_ide_irq(struct pci_dev *pdev, int channel)
diff --git a/arch/powerpc/platforms/pasemi/pci.c b/arch/powerpc/platforms/pasemi/pci.c
index b6a0ec45c695..aa862713258c 100644
--- a/arch/powerpc/platforms/pasemi/pci.c
+++ b/arch/powerpc/platforms/pasemi/pci.c
@@ -229,9 +229,6 @@ void __init pas_pci_init(void)
 
         /* Setup the linkage between OF nodes and PHBs */
         pci_devs_phb_init();
-
-        /* Use the common resource allocation mechanism */
-        pci_probe_only = 1;
 }
 
 void __iomem *pasemi_pci_getcfgaddr(struct pci_dev *dev, int offset)
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index 31a7d3a7ce25..43bbe1bda939 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -1059,9 +1059,6 @@ void __init pmac_pci_init(void)
         }
         /* pmac_check_ht_link(); */
 
-        /* We can allocate missing resources if any */
-        pci_probe_only = 0;
-
 #else /* CONFIG_PPC64 */
         init_p2pbridge();
         init_second_ohare();
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 5e155dfc4320..fbdd74dac3ac 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1299,15 +1299,14 @@ void __init pnv_pci_init_ioda1_phb(struct device_node *np)
         /* Setup MSI support */
         pnv_pci_init_ioda_msis(phb);
 
-        /* We set both probe_only and PCI_REASSIGN_ALL_RSRC. This is an
+        /* We set both PCI_PROBE_ONLY and PCI_REASSIGN_ALL_RSRC. This is an
          * odd combination which essentially means that we skip all resource
          * fixups and assignments in the generic code, and do it all
          * ourselves here
          */
-        pci_probe_only = 1;
         ppc_md.pcibios_fixup_phb = pnv_pci_ioda_fixup_phb;
         ppc_md.pcibios_enable_device_hook = pnv_pci_enable_device_hook;
-        pci_add_flags(PCI_REASSIGN_ALL_RSRC);
+        pci_add_flags(PCI_PROBE_ONLY | PCI_REASSIGN_ALL_RSRC);
 
         /* Reset IODA tables to a clean state */
         rc = opal_pci_reset(phb_id, OPAL_PCI_IODA_TABLE_RESET, OPAL_ASSERT_RESET);
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 214478d781ae..be3cfc5ceabb 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -562,10 +562,7 @@ void __init pnv_pci_init(void)
 {
         struct device_node *np;
 
-        pci_set_flags(PCI_CAN_SKIP_ISA_ALIGN);
-
-        /* We do not want to just probe */
-        pci_probe_only = 0;
+        pci_add_flags(PCI_CAN_SKIP_ISA_ALIGN);
 
         /* OPAL absent, try POPAL first then RTAS detection of PHBs */
         if (!firmware_has_feature(FW_FEATURE_OPAL)) {
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c
index fbb21fc3080b..8b7bafa489c2 100644
--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
+++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
@@ -84,7 +84,7 @@ void pcibios_remove_pci_devices(struct pci_bus *bus)
         list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
                 pr_debug("     * Removing %s...\n", pci_name(dev));
                 eeh_remove_bus_device(dev);
-                pci_remove_bus_device(dev);
+                pci_stop_and_remove_bus_device(dev);
         }
 }
 EXPORT_SYMBOL_GPL(pcibios_remove_pci_devices);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 8f137af616af..51ecac920dd8 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -383,6 +383,9 @@ static void __init pSeries_setup_arch(void)
 
         fwnmi_init();
 
+        /* By default, only probe PCI (can be overriden by rtas_pci) */
+        pci_add_flags(PCI_PROBE_ONLY);
+
         /* Find and initialize PCI host bridges */
         init_pci_config_tokens();
         eeh_pseries_init();
diff --git a/arch/powerpc/platforms/wsp/wsp_pci.c b/arch/powerpc/platforms/wsp/wsp_pci.c
index d24b3acf858e..763014cd1e62 100644
--- a/arch/powerpc/platforms/wsp/wsp_pci.c
+++ b/arch/powerpc/platforms/wsp/wsp_pci.c
@@ -682,7 +682,6 @@ static int __init wsp_setup_one_phb(struct device_node *np)
         /* XXX Force re-assigning of everything for now */
         pci_add_flags(PCI_REASSIGN_ALL_BUS | PCI_REASSIGN_ALL_RSRC |
                       PCI_ENABLE_PROC_DOMAINS);
-        pci_probe_only = 0;
 
         /* Calculate how the TCE space is divided */
         phb->dma32_base         = 0;
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index 1e7b0e2e764d..9d10a3cb8797 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -37,11 +37,20 @@ static void __devinit pcibios_scanbus(struct pci_channel *hose)
         static int next_busno;
         static int need_domain_info;
         LIST_HEAD(resources);
+        struct resource *res;
+        resource_size_t offset;
         int i;
         struct pci_bus *bus;
 
-        for (i = 0; i < hose->nr_resources; i++)
-                pci_add_resource(&resources, hose->resources + i);
+        for (i = 0; i < hose->nr_resources; i++) {
+                res = hose->resources + i;
+                offset = 0;
+                if (res->flags & IORESOURCE_IO)
+                        offset = hose->io_offset;
+                else if (res->flags & IORESOURCE_MEM)
+                        offset = hose->mem_offset;
+                pci_add_resource_offset(&resources, res, offset);
+        }
 
         bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose,
                                 &resources);
@@ -143,42 +152,12 @@ static int __init pcibios_init(void)
 }
 subsys_initcall(pcibios_init);
 
-static void pcibios_fixup_device_resources(struct pci_dev *dev,
-        struct pci_bus *bus)
-{
-        /* Update device resources.  */
-        struct pci_channel *hose = bus->sysdata;
-        unsigned long offset = 0;
-        int i;
-
-        for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-                if (!dev->resource[i].start)
-                        continue;
-                if (dev->resource[i].flags & IORESOURCE_IO)
-                        offset = hose->io_offset;
-                else if (dev->resource[i].flags & IORESOURCE_MEM)
-                        offset = hose->mem_offset;
-
-                dev->resource[i].start += offset;
-                dev->resource[i].end += offset;
-        }
-}
-
 /*
  *  Called after each bus is probed, but before its children
  *  are examined.
  */
 void __devinit pcibios_fixup_bus(struct pci_bus *bus)
 {
-        struct pci_dev *dev;
-        struct list_head *ln;
-
-        for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) {
-                dev = pci_dev_b(ln);
-
-                if ((dev->class >> 8) != PCI_CLASS_BRIDGE_PCI)
-                        pcibios_fixup_device_resources(dev, bus);
-        }
 }
 
 /*
@@ -208,36 +187,6 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
         return start;
 }
 
-void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
-                             struct resource *res)
-{
-        struct pci_channel *hose = dev->sysdata;
-        unsigned long offset = 0;
-
-        if (res->flags & IORESOURCE_IO)
-                offset = hose->io_offset;
-        else if (res->flags & IORESOURCE_MEM)
-                offset = hose->mem_offset;
-
-        region->start = res->start - offset;
-        region->end = res->end - offset;
-}
-
-void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-                             struct pci_bus_region *region)
-{
-        struct pci_channel *hose = dev->sysdata;
-        unsigned long offset = 0;
-
-        if (res->flags & IORESOURCE_IO)
-                offset = hose->io_offset;
-        else if (res->flags & IORESOURCE_MEM)
-                offset = hose->mem_offset;
-
-        res->start = region->start + offset;
-        res->end = region->end + offset;
-}
-
 int pcibios_enable_device(struct pci_dev *dev, int mask)
 {
         return pci_enable_resources(dev, mask);
@@ -381,8 +330,6 @@ EXPORT_SYMBOL(pci_iounmap);
 #endif /* CONFIG_GENERIC_IOMAP */
 
 #ifdef CONFIG_HOTPLUG
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-EXPORT_SYMBOL(pcibios_bus_to_resource);
 EXPORT_SYMBOL(PCIBIOS_MIN_IO);
 EXPORT_SYMBOL(PCIBIOS_MIN_MEM);
 #endif
diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
index cb21e2399dc1..bff96c2e7d25 100644
--- a/arch/sh/include/asm/pci.h
+++ b/arch/sh/include/asm/pci.h
@@ -114,12 +114,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 /* Board-specific fixup routines. */
 int pcibios_map_platform_irq(const struct pci_dev *dev, u8 slot, u8 pin);
 
-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 pci_domain_nr(bus) ((struct pci_channel *)(bus)->sysdata)->index
 
 static inline int pci_proc_domain(struct pci_bus *bus)
diff --git a/arch/sparc/include/asm/pci_32.h b/arch/sparc/include/asm/pci_32.h
index 6de7f7bf956a..dc503297481f 100644
--- a/arch/sparc/include/asm/pci_32.h
+++ b/arch/sparc/include/asm/pci_32.h
@@ -52,14 +52,6 @@ static inline void pci_dma_burst_advice(struct pci_dev *pdev,
  * 64Kbytes by the Host controller.
  */
 
-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);
-
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 {
         return PCI_IRQ_NONE;
diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h
index 755a4bb6bcd3..1633b718d3bc 100644
--- a/arch/sparc/include/asm/pci_64.h
+++ b/arch/sparc/include/asm/pci_64.h
@@ -73,14 +73,6 @@ extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
                                enum pci_mmap_state mmap_state,
                                int write_combine);
 
-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);
-
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 {
         return PCI_IRQ_NONE;
diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c
index c7bec25fdb1c..aba6b958b2a5 100644
--- a/arch/sparc/kernel/leon_pci.c
+++ b/arch/sparc/kernel/leon_pci.c
@@ -15,14 +15,19 @@
 
 /* The LEON architecture does not rely on a BIOS or bootloader to setup
  * PCI for us. The Linux generic routines are used to setup resources,
- * reset values of confuration-space registers settings ae preseved.
+ * reset values of configuration-space register settings are preserved.
+ *
+ * PCI Memory and Prefetchable Memory is direct-mapped. However I/O Space is
+ * accessed through a Window which is translated to low 64KB in PCI space, the
+ * first 4KB is not used so 60KB is available.
  */
 void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info)
 {
         LIST_HEAD(resources);
         struct pci_bus *root_bus;
 
-        pci_add_resource(&resources, &info->io_space);
+        pci_add_resource_offset(&resources, &info->io_space,
+                                info->io_space.start - 0x1000);
         pci_add_resource(&resources, &info->mem_space);
 
         root_bus = pci_scan_root_bus(&ofdev->dev, 0, info->ops, info,
@@ -38,44 +43,6 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info)
         }
 }
 
-/* PCI Memory and Prefetchable Memory is direct-mapped. However I/O Space is
- * accessed through a Window which is translated to low 64KB in PCI space, the
- * first 4KB is not used so 60KB is available.
- *
- * This function is used by generic code to translate resource addresses into
- * PCI addresses.
- */
-void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
-                             struct resource *res)
-{
-        struct leon_pci_info *info = dev->bus->sysdata;
-
-        region->start = res->start;
-        region->end = res->end;
-
-        if (res->flags & IORESOURCE_IO) {
-                region->start -= (info->io_space.start - 0x1000);
-                region->end -= (info->io_space.start - 0x1000);
-        }
-}
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-
-/* see pcibios_resource_to_bus() comment */
-void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-                             struct pci_bus_region *region)
-{
-        struct leon_pci_info *info = dev->bus->sysdata;
-
-        res->start = region->start;
-        res->end = region->end;
-
-        if (res->flags & IORESOURCE_IO) {
-                res->start += (info->io_space.start - 0x1000);
-                res->end += (info->io_space.start - 0x1000);
-        }
-}
-EXPORT_SYMBOL(pcibios_bus_to_resource);
-
 void __devinit pcibios_fixup_bus(struct pci_bus *pbus)
 {
         struct leon_pci_info *info = pbus->sysdata;
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index bb8bc2e519ac..fdaf21811670 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -375,13 +375,6 @@ static void __devinit apb_calc_first_last(u8 map, u32 *first_p, u32 *last_p)
         *last_p = last;
 }
 
-static void pci_resource_adjust(struct resource *res,
-                                struct resource *root)
-{
-        res->start += root->start;
-        res->end += root->start;
-}
-
 /* For PCI bus devices which lack a 'ranges' property we interrogate
  * the config space values to set the resources, just like the generic
  * Linux PCI probing code does.
@@ -390,7 +383,8 @@ static void __devinit pci_cfg_fake_ranges(struct pci_dev *dev,
                                           struct pci_bus *bus,
                                           struct pci_pbm_info *pbm)
 {
-        struct resource *res;
+        struct pci_bus_region region;
+        struct resource *res, res2;
         u8 io_base_lo, io_limit_lo;
         u16 mem_base_lo, mem_limit_lo;
         unsigned long base, limit;
@@ -412,11 +406,14 @@ static void __devinit pci_cfg_fake_ranges(struct pci_dev *dev,
         res = bus->resource[0];
         if (base <= limit) {
                 res->flags = (io_base_lo & PCI_IO_RANGE_TYPE_MASK) | IORESOURCE_IO;
+                res2.flags = res->flags;
+                region.start = base;
+                region.end = limit + 0xfff;
+                pcibios_bus_to_resource(dev, &res2, &region);
                 if (!res->start)
-                        res->start = base;
+                        res->start = res2.start;
                 if (!res->end)
-                        res->end = limit + 0xfff;
-                pci_resource_adjust(res, &pbm->io_space);
+                        res->end = res2.end;
         }
 
         pci_read_config_word(dev, PCI_MEMORY_BASE, &mem_base_lo);
@@ -428,9 +425,9 @@ static void __devinit pci_cfg_fake_ranges(struct pci_dev *dev,
         if (base <= limit) {
                 res->flags = ((mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) |
                               IORESOURCE_MEM);
-                res->start = base;
-                res->end = limit + 0xfffff;
-                pci_resource_adjust(res, &pbm->mem_space);
+                region.start = base;
+                region.end = limit + 0xfffff;
+                pcibios_bus_to_resource(dev, res, &region);
         }
 
         pci_read_config_word(dev, PCI_PREF_MEMORY_BASE, &mem_base_lo);
@@ -459,9 +456,9 @@ static void __devinit pci_cfg_fake_ranges(struct pci_dev *dev,
         if (base <= limit) {
                 res->flags = ((mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) |
                               IORESOURCE_MEM | IORESOURCE_PREFETCH);
-                res->start = base;
-                res->end = limit + 0xfffff;
-                pci_resource_adjust(res, &pbm->mem_space);
+                region.start = base;
+                region.end = limit + 0xfffff;
+                pcibios_bus_to_resource(dev, res, &region);
         }
 }
 
@@ -472,6 +469,7 @@ static void __devinit apb_fake_ranges(struct pci_dev *dev,
                                       struct pci_bus *bus,
                                       struct pci_pbm_info *pbm)
 {
+        struct pci_bus_region region;
         struct resource *res;
         u32 first, last;
         u8 map;
@@ -479,18 +477,18 @@ static void __devinit apb_fake_ranges(struct pci_dev *dev,
         pci_read_config_byte(dev, APB_IO_ADDRESS_MAP, &map);
         apb_calc_first_last(map, &first, &last);
         res = bus->resource[0];
-        res->start = (first << 21);
-        res->end = (last << 21) + ((1 << 21) - 1);
         res->flags = IORESOURCE_IO;
-        pci_resource_adjust(res, &pbm->io_space);
+        region.start = (first << 21);
+        region.end = (last << 21) + ((1 << 21) - 1);
+        pcibios_bus_to_resource(dev, res, &region);
 
         pci_read_config_byte(dev, APB_MEM_ADDRESS_MAP, &map);
         apb_calc_first_last(map, &first, &last);
         res = bus->resource[1];
-        res->start = (first << 21);
-        res->end = (last << 21) + ((1 << 21) - 1);
         res->flags = IORESOURCE_MEM;
-        pci_resource_adjust(res, &pbm->mem_space);
+        region.start = (first << 21);
+        region.end = (last << 21) + ((1 << 21) - 1);
+        pcibios_bus_to_resource(dev, res, &region);
 }
 
 static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm,
@@ -506,6 +504,7 @@ static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm,
         struct pci_bus *bus;
         const u32 *busrange, *ranges;
         int len, i, simba;
+        struct pci_bus_region region;
         struct resource *res;
         unsigned int flags;
         u64 size;
@@ -556,8 +555,6 @@ static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm,
         }
         i = 1;
         for (; len >= 32; len -= 32, ranges += 8) {
-                struct resource *root;
-
                 flags = pci_parse_of_flags(ranges[0]);
                 size = GET_64BIT(ranges, 6);
                 if (flags == 0 || size == 0)
@@ -569,7 +566,6 @@ static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm,
                                        " for bridge %s\n", node->full_name);
                                 continue;
                         }
-                        root = &pbm->io_space;
                 } else {
                         if (i >= PCI_NUM_RESOURCES - PCI_BRIDGE_RESOURCES) {
                                 printk(KERN_ERR "PCI: too many memory ranges"
@@ -578,18 +574,12 @@ static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm,
                         }
                         res = bus->resource[i];
                         ++i;
-                        root = &pbm->mem_space;
                 }
 
-                res->start = GET_64BIT(ranges, 1);
-                res->end = res->start + size - 1;
                 res->flags = flags;
-
-                /* Another way to implement this would be to add an of_device
-                 * layer routine that can calculate a resource for a given
-                 * range property value in a PCI device.
-                 */
-                pci_resource_adjust(res, root);
+                region.start = GET_64BIT(ranges, 1);
+                region.end = region.start + size - 1;
+                pcibios_bus_to_resource(dev, res, &region);
         }
 after_ranges:
         sprintf(bus->name, "PCI Bus %04x:%02x", pci_domain_nr(bus),
@@ -691,8 +681,10 @@ struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm,
 
         printk("PCI: Scanning PBM %s\n", node->full_name);
 
-        pci_add_resource(&resources, &pbm->io_space);
-        pci_add_resource(&resources, &pbm->mem_space);
+        pci_add_resource_offset(&resources, &pbm->io_space,
+                                pbm->io_space.start);
+        pci_add_resource_offset(&resources, &pbm->mem_space,
+                                pbm->mem_space.start);
         bus = pci_create_root_bus(parent, pbm->pci_first_busno, pbm->pci_ops,
                                   pbm, &resources);
         if (!bus) {
@@ -755,46 +747,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
         return 0;
 }
 
-void pcibios_resource_to_bus(struct pci_dev *pdev, struct pci_bus_region *region,
-                             struct resource *res)
-{
-        struct pci_pbm_info *pbm = pdev->bus->sysdata;
-        struct resource zero_res, *root;
-
-        zero_res.start = 0;
-        zero_res.end = 0;
-        zero_res.flags = res->flags;
-
-        if (res->flags & IORESOURCE_IO)
-                root = &pbm->io_space;
-        else
-                root = &pbm->mem_space;
-
-        pci_resource_adjust(&zero_res, root);
-
-        region->start = res->start - zero_res.start;
-        region->end = res->end - zero_res.start;
-}
-EXPORT_SYMBOL(pcibios_resource_to_bus);
-
-void pcibios_bus_to_resource(struct pci_dev *pdev, struct resource *res,
-                             struct pci_bus_region *region)
-{
-        struct pci_pbm_info *pbm = pdev->bus->sysdata;
-        struct resource *root;
-
-        res->start = region->start;
-        res->end = region->end;
-
-        if (res->flags & IORESOURCE_IO)
-                root = &pbm->io_space;
-        else
-                root = &pbm->mem_space;
-
-        pci_resource_adjust(res, root);
-}
-EXPORT_SYMBOL(pcibios_bus_to_resource);
-
 char * __devinit pcibios_setup(char *str)
 {
         return str;
diff --git a/arch/unicore32/include/asm/pci.h b/arch/unicore32/include/asm/pci.h
index dd3867727c35..f5e108f4a151 100644
--- a/arch/unicore32/include/asm/pci.h
+++ b/arch/unicore32/include/asm/pci.h
@@ -14,6 +14,7 @@
 
 #ifdef __KERNEL__
 #include <asm-generic/pci-dma-compat.h>
+#include <asm-generic/pci-bridge.h>
 #include <asm-generic/pci.h>
 #include <mach/hardware.h> /* for PCIBIOS_MIN_* */
 
diff --git a/arch/unicore32/kernel/pci.c b/arch/unicore32/kernel/pci.c
index a8f07fe10cad..2fc2b1ba825e 100644
--- a/arch/unicore32/kernel/pci.c
+++ b/arch/unicore32/kernel/pci.c
@@ -21,7 +21,6 @@
 #include <linux/io.h>
 
 static int debug_pci;
-static int use_firmware;
 
 #define CONFIG_CMD(bus, devfn, where)   \
         (0x80000000 | (bus->number << 16) | (devfn << 8) | (where & ~3))
@@ -276,7 +275,7 @@ static int __init pci_common_init(void)
 
         pci_fixup_irqs(pci_common_swizzle, pci_puv3_map_irq);
 
-        if (!use_firmware) {
+        if (!pci_has_flag(PCI_PROBE_ONLY)) {
                 /*
                  * Size the bridge windows.
                  */
@@ -303,7 +302,7 @@ char * __devinit pcibios_setup(char *str)
                 debug_pci = 1;
                 return NULL;
         } else if (!strcmp(str, "firmware")) {
-                use_firmware = 1;
+                pci_add_flags(PCI_PROBE_ONLY);
                 return NULL;
         }
         return str;
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 1c4d769e21ea..28e5e06fcba4 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -262,10 +262,11 @@ rootfs_initcall(pci_iommu_init);
 
 static __devinit void via_no_dac(struct pci_dev *dev)
 {
-        if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) {
+        if (forbid_dac == 0) {
                 dev_info(&dev->dev, "disabling DAC on VIA PCI bridge\n");
                 forbid_dac = 1;
         }
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac);
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID,
+                                PCI_CLASS_BRIDGE_PCI, 8, via_no_dac);
 #endif
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 49a5cb55429b..ed2835e148b5 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -416,7 +416,12 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root)
                 kfree(sd);
         } else {
                 get_current_resources(device, busnum, domain, &resources);
-                if (list_empty(&resources))
+
+                /*
+                 * _CRS with no apertures is normal, so only fall back to
+                 * defaults or native bridge info if we're ignoring _CRS.
+                 */
+                if (!pci_use_crs)
                         x86_pci_root_bus_resources(busnum, &resources);
                 bus = pci_create_root_bus(NULL, busnum, &pci_root_ops, sd,
                                           &resources);
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index 6dd89555fbfa..d0e6e403b4f6 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -164,11 +164,11 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8367_0, pci_fixup_
  */
 static void __devinit pci_fixup_transparent_bridge(struct pci_dev *dev)
 {
-        if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI &&
-            (dev->device & 0xff00) == 0x2400)
+        if ((dev->device & 0xff00) == 0x2400)
                 dev->transparent = 1;
 }
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_fixup_transparent_bridge);
+DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
+                         PCI_CLASS_BRIDGE_PCI, 8, pci_fixup_transparent_bridge);
 
 /*
  * Fixup for C1 Halt Disconnect problem on nForce2 systems.
@@ -322,9 +322,6 @@ static void __devinit pci_fixup_video(struct pci_dev *pdev)
         struct pci_bus *bus;
         u16 config;
 
-        if ((pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
-                return;
-
         /* Is VGA routed to us? */
         bus = pdev->bus;
         while (bus) {
@@ -353,7 +350,8 @@ static void __devinit pci_fixup_video(struct pci_dev *pdev)
                 dev_printk(KERN_DEBUG, &pdev->dev, "Boot video device\n");
         }
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video);
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
+                                PCI_CLASS_DISPLAY_VGA, 8, pci_fixup_video);
 
 
 static const struct dmi_system_id __devinitconst msi_k8t_dmi_table[] = {
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 91821a1a0c3a..831971e731f7 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -39,6 +39,87 @@
 #include <asm/io_apic.h>
 
 
+/*
+ * This list of dynamic mappings is for temporarily maintaining
+ * original BIOS BAR addresses for possible reinstatement.
+ */
+struct pcibios_fwaddrmap {
+        struct list_head list;
+        struct pci_dev *dev;
+        resource_size_t fw_addr[DEVICE_COUNT_RESOURCE];
+};
+
+static LIST_HEAD(pcibios_fwaddrmappings);
+static DEFINE_SPINLOCK(pcibios_fwaddrmap_lock);
+
+/* Must be called with 'pcibios_fwaddrmap_lock' lock held. */
+static struct pcibios_fwaddrmap *pcibios_fwaddrmap_lookup(struct pci_dev *dev)
+{
+        struct pcibios_fwaddrmap *map;
+
+        WARN_ON(!spin_is_locked(&pcibios_fwaddrmap_lock));
+
+        list_for_each_entry(map, &pcibios_fwaddrmappings, list)
+                if (map->dev == dev)
+                        return map;
+
+        return NULL;
+}
+
+static void
+pcibios_save_fw_addr(struct pci_dev *dev, int idx, resource_size_t fw_addr)
+{
+        unsigned long flags;
+        struct pcibios_fwaddrmap *map;
+
+        spin_lock_irqsave(&pcibios_fwaddrmap_lock, flags);
+        map = pcibios_fwaddrmap_lookup(dev);
+        if (!map) {
+                spin_unlock_irqrestore(&pcibios_fwaddrmap_lock, flags);
+                map = kzalloc(sizeof(*map), GFP_KERNEL);
+                if (!map)
+                        return;
+
+                map->dev = pci_dev_get(dev);
+                map->fw_addr[idx] = fw_addr;
+                INIT_LIST_HEAD(&map->list);
+
+                spin_lock_irqsave(&pcibios_fwaddrmap_lock, flags);
+                list_add_tail(&map->list, &pcibios_fwaddrmappings);
+        } else
+                map->fw_addr[idx] = fw_addr;
+        spin_unlock_irqrestore(&pcibios_fwaddrmap_lock, flags);
+}
+
+resource_size_t pcibios_retrieve_fw_addr(struct pci_dev *dev, int idx)
+{
+        unsigned long flags;
+        struct pcibios_fwaddrmap *map;
+        resource_size_t fw_addr = 0;
+
+        spin_lock_irqsave(&pcibios_fwaddrmap_lock, flags);
+        map = pcibios_fwaddrmap_lookup(dev);
+        if (map)
+                fw_addr = map->fw_addr[idx];
+        spin_unlock_irqrestore(&pcibios_fwaddrmap_lock, flags);
+
+        return fw_addr;
+}
+
+static void pcibios_fw_addr_list_del(void)
+{
+        unsigned long flags;
+        struct pcibios_fwaddrmap *entry, *next;
+
+        spin_lock_irqsave(&pcibios_fwaddrmap_lock, flags);
+        list_for_each_entry_safe(entry, next, &pcibios_fwaddrmappings, list) {
+                list_del(&entry->list);
+                pci_dev_put(entry->dev);
+                kfree(entry);
+        }
+        spin_unlock_irqrestore(&pcibios_fwaddrmap_lock, flags);
+}
+
 static int
 skip_isa_ioresource_align(struct pci_dev *dev) {
 
@@ -182,7 +263,8 @@ static void __init pcibios_allocate_resources(int pass)
                                         idx, r, disabled, pass);
                                 if (pci_claim_resource(dev, idx) < 0) {
                                         /* We'll assign a new address later */
-                                        dev->fw_addr[idx] = r->start;
+                                        pcibios_save_fw_addr(dev,
+                                                        idx, r->start);
                                         r->end -= r->start;
                                         r->start = 0;
                                 }
@@ -228,6 +310,7 @@ static int __init pcibios_assign_resources(void)
         }
 
         pci_assign_unassigned_resources();
+        pcibios_fw_addr_list_del();
 
         return 0;
 }
diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/mrst.c
index cb29191cee58..140942f66b31 100644
--- a/arch/x86/pci/mrst.c
+++ b/arch/x86/pci/mrst.c
@@ -43,6 +43,8 @@
 #define PCI_FIXED_BAR_4_SIZE    0x14
 #define PCI_FIXED_BAR_5_SIZE    0x1c
 
+static int pci_soc_mode = 0;
+
 /**
  * fixed_bar_cap - return the offset of the fixed BAR cap if found
  * @bus: PCI bus
@@ -148,7 +150,9 @@ static bool type1_access_ok(unsigned int bus, unsigned int devfn, int reg)
          */
         if (reg >= 0x100 || reg == PCI_STATUS || reg == PCI_HEADER_TYPE)
                 return 0;
-        if (bus == 0 && (devfn == PCI_DEVFN(2, 0) || devfn == PCI_DEVFN(0, 0)))
+        if (bus == 0 && (devfn == PCI_DEVFN(2, 0)
+                                || devfn == PCI_DEVFN(0, 0)
+                                || devfn == PCI_DEVFN(3, 0)))
                 return 1;
         return 0; /* langwell on others */
 }
@@ -231,14 +235,43 @@ struct pci_ops pci_mrst_ops = {
  */
 int __init pci_mrst_init(void)
 {
-        printk(KERN_INFO "Moorestown platform detected, using MRST PCI ops\n");
+        printk(KERN_INFO "Intel MID platform detected, using MID PCI ops\n");
         pci_mmcfg_late_init();
         pcibios_enable_irq = mrst_pci_irq_enable;
         pci_root_ops = pci_mrst_ops;
+        pci_soc_mode = 1;
         /* Continue with standard init */
         return 1;
 }
 
+/* Langwell devices are not true pci devices, they are not subject to 10 ms
+ * d3 to d0 delay required by pci spec.
+ */
+static void __devinit pci_d3delay_fixup(struct pci_dev *dev)
+{
+        /* PCI fixups are effectively decided compile time. If we have a dual
+           SoC/non-SoC kernel we don't want to mangle d3 on non SoC devices */
+        if (!pci_soc_mode)
+            return;
+        /* true pci devices in lincroft should allow type 1 access, the rest
+         * are langwell fake pci devices.
+         */
+        if (type1_access_ok(dev->bus->number, dev->devfn, PCI_DEVICE_ID))
+                return;
+        dev->d3_delay = 0;
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_d3delay_fixup);
+
+static void __devinit mrst_power_off_unused_dev(struct pci_dev *dev)
+{
+        pci_set_power_state(dev, PCI_D3cold);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0801, mrst_power_off_unused_dev);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0809, mrst_power_off_unused_dev);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x080C, mrst_power_off_unused_dev);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0812, mrst_power_off_unused_dev);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0815, mrst_power_off_unused_dev);
+
 /*
  * Langwell devices reside at fixed offsets, don't try to move them.
  */
@@ -248,6 +281,9 @@ static void __devinit pci_fixed_bar_fixup(struct pci_dev *dev)
         u32 size;
         int i;
 
+        if (!pci_soc_mode)
+                return;
+
         /* Must have extended configuration space */
         if (dev->cfg_size < PCIE_CAP_OFFSET + 4)
                 return;
diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c
index 61045c192e88..eb30e356f5be 100644
--- a/arch/xtensa/kernel/pci.c
+++ b/arch/xtensa/kernel/pci.c
@@ -153,7 +153,7 @@ static void __init pci_controller_apertures(struct pci_controller *pci_ctrl,
         }
         res->start += io_offset;
         res->end += io_offset;
-        pci_add_resource(resources, res);
+        pci_add_resource_offset(resources, res, io_offset);
 
         for (i = 0; i < 3; i++) {
                 res = &pci_ctrl->mem_resources[i];
@@ -200,24 +200,9 @@ subsys_initcall(pcibios_init);
 
 void __init pcibios_fixup_bus(struct pci_bus *bus)
 {
-        struct pci_controller *pci_ctrl = bus->sysdata;
-        struct resource *res;
-        unsigned long io_offset;
-        int i;
-
-        io_offset = (unsigned long)pci_ctrl->io_space.base;
         if (bus->parent) {
                 /* This is a subordinate bridge */
                 pci_read_bridge_bases(bus);
-
-                for (i = 0; i < 4; i++) {
-                        if ((res = bus->resource[i]) == NULL || !res->flags)
-                                continue;
-                        if (io_offset && (res->flags & IORESOURCE_IO)) {
-                                res->start += io_offset;
-                                res->end += io_offset;
-                        }
-                }
         }
 }
 
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index a7dc4672d996..a5c591ffe395 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -346,7 +346,7 @@ static int mpt_remove_dead_ioc_func(void *arg)
         if ((pdev == NULL))
                 return -1;
 
-        pci_remove_bus_device(pdev);
+        pci_stop_and_remove_bus_device(pdev);
         return 0;
 }
 
diff --git a/drivers/parisc/dino.c b/drivers/parisc/dino.c
index 7ff10c1e8664..0610e91bceb2 100644
--- a/drivers/parisc/dino.c
+++ b/drivers/parisc/dino.c
@@ -553,7 +553,6 @@ dino_fixup_bus(struct pci_bus *bus)
         struct list_head *ln;
         struct pci_dev *dev;
         struct dino_device *dino_dev = DINO_DEV(parisc_walk_tree(bus->bridge));
-        int port_base = HBA_PORT_BASE(dino_dev->hba.hba_num);
 
         DBG(KERN_WARNING "%s(0x%p) bus %d platform_data 0x%p\n",
             __func__, bus, bus->secondary,
@@ -599,8 +598,6 @@ dino_fixup_bus(struct pci_bus *bus)
 
 
         list_for_each(ln, &bus->devices) {
-                int i;
-
                 dev = pci_dev_b(ln);
                 if (is_card_dino(&dino_dev->hba.dev->id))
                         dino_card_fixup(dev);
@@ -612,21 +609,6 @@ dino_fixup_bus(struct pci_bus *bus)
                 if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI)
                         continue;
 
-                /* Adjust the I/O Port space addresses */
-                for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-                        struct resource *res = &dev->resource[i];
-                        if (res->flags & IORESOURCE_IO) {
-                                res->start |= port_base;
-                                res->end |= port_base;
-                        }
-#ifdef __LP64__
-                        /* Sign Extend MMIO addresses */
-                        else if (res->flags & IORESOURCE_MEM) {
-                                res->start |= F_EXTEND(0UL);
-                                res->end   |= F_EXTEND(0UL);
-                        }
-#endif
-                }
                 /* null out the ROM resource if there is one (we don't
                  * care about an expansion rom on parisc, since it
                  * usually contains (x86) bios code) */
@@ -991,11 +973,14 @@ static int __init dino_probe(struct parisc_device *dev)
 
         dev->dev.platform_data = dino_dev;
 
-        pci_add_resource(&resources, &dino_dev->hba.io_space);
+        pci_add_resource_offset(&resources, &dino_dev->hba.io_space,
+                                HBA_PORT_BASE(dino_dev->hba.hba_num));
         if (dino_dev->hba.lmmio_space.flags)
-                pci_add_resource(&resources, &dino_dev->hba.lmmio_space);
+                pci_add_resource_offset(&resources, &dino_dev->hba.lmmio_space,
+                                        dino_dev->hba.lmmio_space_offset);
         if (dino_dev->hba.elmmio_space.flags)
-                pci_add_resource(&resources, &dino_dev->hba.elmmio_space);
+                pci_add_resource_offset(&resources, &dino_dev->hba.elmmio_space,
+                                        dino_dev->hba.lmmio_space_offset);
         if (dino_dev->hba.gmmio_space.flags)
                 pci_add_resource(&resources, &dino_dev->hba.gmmio_space);
 
diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c
index d5f3d753a108..e8857647e210 100644
--- a/drivers/parisc/lba_pci.c
+++ b/drivers/parisc/lba_pci.c
@@ -635,7 +635,6 @@ lba_fixup_bus(struct pci_bus *bus)
         u16 status;
 #endif
         struct lba_device *ldev = LBA_DEV(parisc_walk_tree(bus->bridge));
-        int lba_portbase = HBA_PORT_BASE(ldev->hba.hba_num);
 
         DBG("lba_fixup_bus(0x%p) bus %d platform_data 0x%p\n",
                 bus, bus->secondary, bus->bridge->platform_data);
@@ -726,27 +725,6 @@ lba_fixup_bus(struct pci_bus *bus)
                         if (!res->start)
                                 continue;
 
-                        if (res->flags & IORESOURCE_IO) {
-                                DBG("lba_fixup_bus() I/O Ports [%lx/%lx] -> ",
-                                        res->start, res->end);
-                                res->start |= lba_portbase;
-                                res->end   |= lba_portbase;
-                                DBG("[%lx/%lx]\n", res->start, res->end);
-                        } else if (res->flags & IORESOURCE_MEM) {
-                                /*
-                                ** Convert PCI (IO_VIEW) addresses to
-                                ** processor (PA_VIEW) addresses
-                                 */
-                                DBG("lba_fixup_bus() MMIO [%lx/%lx] -> ",
-                                        res->start, res->end);
-                                res->start = PCI_HOST_ADDR(HBA_DATA(ldev), res->start);
-                                res->end   = PCI_HOST_ADDR(HBA_DATA(ldev), res->end);
-                                DBG("[%lx/%lx]\n", res->start, res->end);
-                        } else {
-                                DBG("lba_fixup_bus() WTF? 0x%lx [%lx/%lx] XXX",
-                                        res->flags, res->start, res->end);
-                        }
-
                         /*
                         ** FIXME: this will result in whinging for devices
                         ** that share expansion ROMs (think quad tulip), but
@@ -1514,11 +1492,14 @@ lba_driver_probe(struct parisc_device *dev)
                 lba_dev->hba.lmmio_space.flags = 0;
         }
 
-        pci_add_resource(&resources, &lba_dev->hba.io_space);
+        pci_add_resource_offset(&resources, &lba_dev->hba.io_space,
+                                HBA_PORT_BASE(lba_dev->hba.hba_num));
         if (lba_dev->hba.elmmio_space.start)
-                pci_add_resource(&resources, &lba_dev->hba.elmmio_space);
+                pci_add_resource_offset(&resources, &lba_dev->hba.elmmio_space,
+                                        lba_dev->hba.lmmio_space_offset);
         if (lba_dev->hba.lmmio_space.flags)
-                pci_add_resource(&resources, &lba_dev->hba.lmmio_space);
+                pci_add_resource_offset(&resources, &lba_dev->hba.lmmio_space,
+                                        lba_dev->hba.lmmio_space_offset);
         if (lba_dev->hba.gmmio_space.flags)
                 pci_add_resource(&resources, &lba_dev->hba.gmmio_space);
 
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 37856f7c7781..848bfb84c04c 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -31,6 +31,19 @@ config PCI_DEBUG
 
           When in doubt, say N.
 
+config PCI_REALLOC_ENABLE_AUTO
+        bool "Enable PCI resource re-allocation detection"
+        depends on PCI
+        help
+          Say Y here if you want the PCI core to detect if PCI resource
+          re-allocation needs to be enabled. You can always use pci=realloc=on
+          or pci=realloc=off to override it.  Note this feature is a no-op
+          unless PCI_IOV support is also enabled; in that case it will
+          automatically re-allocate PCI resources if SR-IOV BARs have not
+          been allocated by the BIOS.
+
+          When in doubt, say N.
+
 config PCI_STUB
         tristate "PCI Stub driver"
         depends on PCI
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index 398f5d859791..4ce5ef2f2826 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -18,28 +18,36 @@
 
 #include "pci.h"
 
-void pci_add_resource(struct list_head *resources, struct resource *res)
+void pci_add_resource_offset(struct list_head *resources, struct resource *res,
+                             resource_size_t offset)
 {
-        struct pci_bus_resource *bus_res;
+        struct pci_host_bridge_window *window;
 
-        bus_res = kzalloc(sizeof(struct pci_bus_resource), GFP_KERNEL);
-        if (!bus_res) {
-                printk(KERN_ERR "PCI: can't add bus resource %pR\n", res);
+        window = kzalloc(sizeof(struct pci_host_bridge_window), GFP_KERNEL);
+        if (!window) {
+                printk(KERN_ERR "PCI: can't add host bridge window %pR\n", res);
                 return;
         }
 
-        bus_res->res = res;
-        list_add_tail(&bus_res->list, resources);
+        window->res = res;
+        window->offset = offset;
+        list_add_tail(&window->list, resources);
+}
+EXPORT_SYMBOL(pci_add_resource_offset);
+
+void pci_add_resource(struct list_head *resources, struct resource *res)
+{
+        pci_add_resource_offset(resources, res, 0);
 }
 EXPORT_SYMBOL(pci_add_resource);
 
 void pci_free_resource_list(struct list_head *resources)
 {
-        struct pci_bus_resource *bus_res, *tmp;
+        struct pci_host_bridge_window *window, *tmp;
 
-        list_for_each_entry_safe(bus_res, tmp, resources, list) {
-                list_del(&bus_res->list);
-                kfree(bus_res);
+        list_for_each_entry_safe(window, tmp, resources, list) {
+                list_del(&window->list);
+                kfree(window);
         }
 }
 EXPORT_SYMBOL(pci_free_resource_list);
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 9ddf69e3bbef..806c44fa645a 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -800,20 +800,10 @@ static int __ref enable_device(struct acpiphp_slot *slot)
         if (slot->flags & SLOT_ENABLED)
                 goto err_exit;
 
-        /* sanity check: dev should be NULL when hot-plugged in */
-        dev = pci_get_slot(bus, PCI_DEVFN(slot->device, 0));
-        if (dev) {
-                /* This case shouldn't happen */
-                err("pci_dev structure already exists.\n");
-                pci_dev_put(dev);
-                retval = -1;
-                goto err_exit;
-        }
-
         num = pci_scan_slot(bus, PCI_DEVFN(slot->device, 0));
         if (num == 0) {
-                err("No new device found\n");
-                retval = -1;
+                /* Maybe only part of funcs are added. */
+                dbg("No new device found\n");
                 goto err_exit;
         }
 
@@ -848,11 +838,16 @@ static int __ref enable_device(struct acpiphp_slot *slot)
 
         pci_bus_add_devices(bus);
 
+        slot->flags |= SLOT_ENABLED;
         list_for_each_entry(func, &slot->funcs, sibling) {
                 dev = pci_get_slot(bus, PCI_DEVFN(slot->device,
                                                   func->function));
-                if (!dev)
+                if (!dev) {
+                        /* Do not set SLOT_ENABLED flag if some funcs
+                           are not added. */
+                        slot->flags &= (~SLOT_ENABLED);
                         continue;
+                }
 
                 if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE &&
                     dev->hdr_type != PCI_HEADER_TYPE_CARDBUS) {
@@ -867,7 +862,6 @@ static int __ref enable_device(struct acpiphp_slot *slot)
                 pci_dev_put(dev);
         }
 
-        slot->flags |= SLOT_ENABLED;
 
  err_exit:
         return retval;
@@ -892,9 +886,12 @@ static int disable_device(struct acpiphp_slot *slot)
 {
         struct acpiphp_func *func;
         struct pci_dev *pdev;
+        struct pci_bus *bus = slot->bridge->pci_bus;
 
-        /* is this slot already disabled? */
-        if (!(slot->flags & SLOT_ENABLED))
+        /* The slot will be enabled when func 0 is added, so check
+           func 0 before disable the slot. */
+        pdev = pci_get_slot(bus, PCI_DEVFN(slot->device, 0));
+        if (!pdev)
                 goto err_exit;
 
         list_for_each_entry(func, &slot->funcs, sibling) {
@@ -913,7 +910,7 @@ static int disable_device(struct acpiphp_slot *slot)
                                 disable_bridges(pdev->subordinate);
                                 pci_disable_device(pdev);
                         }
-                        pci_remove_bus_device(pdev);
+                        __pci_remove_bus_device(pdev);
                         pci_dev_put(pdev);
                 }
         }
@@ -1070,7 +1067,7 @@ static void acpiphp_sanitize_bus(struct pci_bus *bus)
                                         res->end) {
                                 /* Could not assign a required resources
                                  * for this device, remove it */
-                                pci_remove_bus_device(dev);
+                                pci_stop_and_remove_bus_device(dev);
                                 break;
                         }
                 }
diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c
index 829c327cfb5e..ae853ccd0cd5 100644
--- a/drivers/pci/hotplug/cpci_hotplug_pci.c
+++ b/drivers/pci/hotplug/cpci_hotplug_pci.c
@@ -341,7 +341,7 @@ int cpci_unconfigure_slot(struct slot* slot)
                 dev = pci_get_slot(slot->bus,
                                     PCI_DEVFN(PCI_SLOT(slot->devfn), i));
                 if (dev) {
-                        pci_remove_bus_device(dev);
+                        pci_stop_and_remove_bus_device(dev);
                         pci_dev_put(dev);
                 }
         }
diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
index fb3f84661bdc..81af764c629b 100644
--- a/drivers/pci/hotplug/cpcihp_generic.c
+++ b/drivers/pci/hotplug/cpcihp_generic.c
@@ -62,7 +62,7 @@
 #define warn(format, arg...) printk(KERN_WARNING "%s: " format "\n", MY_NAME , ## arg)
 
 /* local variables */
-static int debug;
+static bool debug;
 static char *bridge;
 static u8 bridge_busnr;
 static u8 bridge_slot;
diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c
index 6173b9a4544e..1c8494021a42 100644
--- a/drivers/pci/hotplug/cpqphp_pci.c
+++ b/drivers/pci/hotplug/cpqphp_pci.c
@@ -127,7 +127,7 @@ int cpqhp_unconfigure_device(struct pci_func* func)
                 struct pci_dev* temp = pci_get_bus_and_slot(func->bus, PCI_DEVFN(func->device, j));
                 if (temp) {
                         pci_dev_put(temp);
-                        pci_remove_bus_device(temp);
+                        pci_stop_and_remove_bus_device(temp);
                 }
         }
         return 0;
diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c
index 17d10e2e8fb6..a019c9a712be 100644
--- a/drivers/pci/hotplug/fakephp.c
+++ b/drivers/pci/hotplug/fakephp.c
@@ -40,7 +40,7 @@ static ssize_t legacy_show(struct kobject *kobj, struct attribute *attr,
 
 static void remove_callback(void *data)
 {
-        pci_remove_bus_device((struct pci_dev *)data);
+        pci_stop_and_remove_bus_device((struct pci_dev *)data);
 }
 
 static ssize_t legacy_store(struct kobject *kobj, struct attribute *attr,
diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c
index 5506e0e8fbc0..4fda7e6a86a7 100644
--- a/drivers/pci/hotplug/ibmphp_core.c
+++ b/drivers/pci/hotplug/ibmphp_core.c
@@ -721,7 +721,7 @@ static void ibm_unconfigure_device(struct pci_func *func)
         for (j = 0; j < 0x08; j++) {
                 temp = pci_get_bus_and_slot(func->busno, (func->device << 3) | j);
                 if (temp) {
-                        pci_remove_bus_device(temp);
+                        pci_stop_and_remove_bus_device(temp);
                         pci_dev_put(temp);
                 }
         }
diff --git a/drivers/pci/hotplug/ibmphp_ebda.c b/drivers/pci/hotplug/ibmphp_ebda.c
index 2850e64dedae..714ca5c4ed50 100644
--- a/drivers/pci/hotplug/ibmphp_ebda.c
+++ b/drivers/pci/hotplug/ibmphp_ebda.c
@@ -368,8 +368,10 @@ int __init ibmphp_access_ebda (void)
                         debug ("rio blk id: %x\n", blk_id);
 
                         rio_table_ptr = kzalloc(sizeof(struct rio_table_hdr), GFP_KERNEL);
-                        if (!rio_table_ptr)
-                                return -ENOMEM; 
+                        if (!rio_table_ptr) {
+                                rc = -ENOMEM;
+                                goto out;
+                        }
                         rio_table_ptr->ver_num = readb (io_mem + offset);
                         rio_table_ptr->scal_count = readb (io_mem + offset + 1);
                         rio_table_ptr->riodev_count = readb (io_mem + offset + 2);
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index bcdbb1643621..a960faec1021 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -241,34 +241,79 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
         return retval;
 }
 
-static inline int check_link_active(struct controller *ctrl)
+static bool check_link_active(struct controller *ctrl)
 {
-        u16 link_status;
+        bool ret = false;
+        u16 lnk_status;
 
-        if (pciehp_readw(ctrl, PCI_EXP_LNKSTA, &link_status))
-                return 0;
-        return !!(link_status & PCI_EXP_LNKSTA_DLLLA);
+        if (pciehp_readw(ctrl, PCI_EXP_LNKSTA, &lnk_status))
+                return ret;
+
+        ret = !!(lnk_status & PCI_EXP_LNKSTA_DLLLA);
+
+        if (ret)
+                ctrl_dbg(ctrl, "%s: lnk_status = %x\n", __func__, lnk_status);
+
+        return ret;
 }
 
-static void pcie_wait_link_active(struct controller *ctrl)
+static void __pcie_wait_link_active(struct controller *ctrl, bool active)
 {
         int timeout = 1000;
 
-        if (check_link_active(ctrl))
+        if (check_link_active(ctrl) == active)
                 return;
         while (timeout > 0) {
                 msleep(10);
                 timeout -= 10;
-                if (check_link_active(ctrl))
+                if (check_link_active(ctrl) == active)
                         return;
         }
-        ctrl_dbg(ctrl, "Data Link Layer Link Active not set in 1000 msec\n");
+        ctrl_dbg(ctrl, "Data Link Layer Link Active not %s in 1000 msec\n",
+                        active ? "set" : "cleared");
+}
+
+static void pcie_wait_link_active(struct controller *ctrl)
+{
+        __pcie_wait_link_active(ctrl, true);
+}
+
+static void pcie_wait_link_not_active(struct controller *ctrl)
+{
+        __pcie_wait_link_active(ctrl, false);
+}
+
+static bool pci_bus_check_dev(struct pci_bus *bus, int devfn)
+{
+        u32 l;
+        int count = 0;
+        int delay = 1000, step = 20;
+        bool found = false;
+
+        do {
+                found = pci_bus_read_dev_vendor_id(bus, devfn, &l, 0);
+                count++;
+
+                if (found)
+                        break;
+
+                msleep(step);
+                delay -= step;
+        } while (delay > 0);
+
+        if (count > 1 && pciehp_debug)
+                printk(KERN_DEBUG "pci %04x:%02x:%02x.%d id reading try %d times with interval %d ms to get %08x\n",
+                        pci_domain_nr(bus), bus->number, PCI_SLOT(devfn),
+                        PCI_FUNC(devfn), count, step, l);
+
+        return found;
 }
 
 int pciehp_check_link_status(struct controller *ctrl)
 {
         u16 lnk_status;
         int retval = 0;
+        bool found = false;
 
         /*
          * Data Link Layer Link Active Reporting must be capable for
@@ -280,13 +325,10 @@ int pciehp_check_link_status(struct controller *ctrl)
         else
                 msleep(1000);
 
-        /*
-         * Need to wait for 1000 ms after Data Link Layer Link Active
-         * (DLLLA) bit reads 1b before sending configuration request.
-         * We need it before checking Link Training (LT) bit becuase
-         * LT is still set even after DLLLA bit is set on some platform.
-         */
-        msleep(1000);
+        /* wait 100ms before read pci conf, and try in 1s */
+        msleep(100);
+        found = pci_bus_check_dev(ctrl->pcie->port->subordinate,
+                                        PCI_DEVFN(0, 0));
 
         retval = pciehp_readw(ctrl, PCI_EXP_LNKSTA, &lnk_status);
         if (retval) {
@@ -302,19 +344,50 @@ int pciehp_check_link_status(struct controller *ctrl)
                 return retval;
         }
 
-        /*
-         * If the port supports Link speeds greater than 5.0 GT/s, we
-         * must wait for 100 ms after Link training completes before
-         * sending configuration request.
-         */
-        if (ctrl->pcie->port->subordinate->max_bus_speed > PCIE_SPEED_5_0GT)
-                msleep(100);
-
         pcie_update_link_speed(ctrl->pcie->port->subordinate, lnk_status);
 
+        if (!found && !retval)
+                retval = -1;
+
         return retval;
 }
 
+static int __pciehp_link_set(struct controller *ctrl, bool enable)
+{
+        u16 lnk_ctrl;
+        int retval = 0;
+
+        retval = pciehp_readw(ctrl, PCI_EXP_LNKCTL, &lnk_ctrl);
+        if (retval) {
+                ctrl_err(ctrl, "Cannot read LNKCTRL register\n");
+                return retval;
+        }
+
+        if (enable)
+                lnk_ctrl &= ~PCI_EXP_LNKCTL_LD;
+        else
+                lnk_ctrl |= PCI_EXP_LNKCTL_LD;
+
+        retval = pciehp_writew(ctrl, PCI_EXP_LNKCTL, lnk_ctrl);
+        if (retval) {
+                ctrl_err(ctrl, "Cannot write LNKCTRL register\n");
+                return retval;
+        }
+        ctrl_dbg(ctrl, "%s: lnk_ctrl = %x\n", __func__, lnk_ctrl);
+
+        return retval;
+}
+
+static int pciehp_link_enable(struct controller *ctrl)
+{
+        return __pciehp_link_set(ctrl, true);
+}
+
+static int pciehp_link_disable(struct controller *ctrl)
+{
+        return __pciehp_link_set(ctrl, false);
+}
+
 int pciehp_get_attention_status(struct slot *slot, u8 *status)
 {
         struct controller *ctrl = slot->ctrl;
@@ -533,6 +606,10 @@ int pciehp_power_on_slot(struct slot * slot)
         ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
                  pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_cmd);
 
+        retval = pciehp_link_enable(ctrl);
+        if (retval)
+                ctrl_err(ctrl, "%s: Can not enable the link!\n", __func__);
+
         return retval;
 }
 
@@ -543,6 +620,14 @@ int pciehp_power_off_slot(struct slot * slot)
         u16 cmd_mask;
         int retval;
 
+        /* Disable the link at first */
+        pciehp_link_disable(ctrl);
+        /* wait the link is down */
+        if (ctrl->link_active_reporting)
+                pcie_wait_link_not_active(ctrl);
+        else
+                msleep(1000);
+
         slot_cmd = POWER_OFF;
         cmd_mask = PCI_EXP_SLTCTL_PCC;
         retval = pcie_write_cmd(ctrl, slot_cmd, cmd_mask);
diff --git a/drivers/pci/hotplug/pciehp_pci.c b/drivers/pci/hotplug/pciehp_pci.c
index a4031dfe938e..47d9dc06b109 100644
--- a/drivers/pci/hotplug/pciehp_pci.c
+++ b/drivers/pci/hotplug/pciehp_pci.c
@@ -141,7 +141,7 @@ int pciehp_unconfigure_device(struct slot *p_slot)
                                 break;
                         }
                 }
-                pci_remove_bus_device(temp);
+                pci_stop_and_remove_bus_device(temp);
                 /*
                  * Ensure that no new Requests will be generated from
                  * the device.
diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c
index c56a9413e1af..1e117c2a3cad 100644
--- a/drivers/pci/hotplug/rpadlpar_core.c
+++ b/drivers/pci/hotplug/rpadlpar_core.c
@@ -389,7 +389,7 @@ int dlpar_remove_pci_slot(char *drc_name, struct device_node *dn)
         BUG_ON(!bus->self);
         pr_debug("PCI: Now removing bridge device %s\n", pci_name(bus->self));
         eeh_remove_bus_device(bus->self);
-        pci_remove_bus_device(bus->self);
+        pci_stop_and_remove_bus_device(bus->self);
 
         return 0;
 }
diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c
index 72d507b6a2aa..de573113c102 100644
--- a/drivers/pci/hotplug/sgi_hotplug.c
+++ b/drivers/pci/hotplug/sgi_hotplug.c
@@ -554,7 +554,7 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot)
                                              PCI_FUNC(func)));
                 if (dev) {
                         sn_bus_free_data(dev);
-                        pci_remove_bus_device(dev);
+                        pci_stop_and_remove_bus_device(dev);
                         pci_dev_put(dev);
                 }
         }
diff --git a/drivers/pci/hotplug/shpchp_pci.c b/drivers/pci/hotplug/shpchp_pci.c
index a2ccfcd3c298..df7e4bfadae3 100644
--- a/drivers/pci/hotplug/shpchp_pci.c
+++ b/drivers/pci/hotplug/shpchp_pci.c
@@ -124,7 +124,7 @@ int shpchp_unconfigure_device(struct slot *p_slot)
                                 break;
                         }
                 }
-                pci_remove_bus_device(temp);
+                pci_stop_and_remove_bus_device(temp);
                 pci_dev_put(temp);
         }
         return rc;
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 0dab5ecf61bb..6554e1a0f634 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -142,7 +142,7 @@ failed2:
 failed1:
         pci_dev_put(dev);
         mutex_lock(&iov->dev->sriov->lock);
-        pci_remove_bus_device(virtfn);
+        pci_stop_and_remove_bus_device(virtfn);
         virtfn_remove_bus(dev->bus, virtfn_bus(dev, id));
         mutex_unlock(&iov->dev->sriov->lock);
 
@@ -173,10 +173,16 @@ static void virtfn_remove(struct pci_dev *dev, int id, int reset)
 
         sprintf(buf, "virtfn%u", id);
         sysfs_remove_link(&dev->dev.kobj, buf);
-        sysfs_remove_link(&virtfn->dev.kobj, "physfn");
+        /*
+         * pci_stop_dev() could have been called for this virtfn already,
+         * so the directory for the virtfn may have been removed before.
+         * Double check to avoid spurious sysfs warnings.
+         */
+        if (virtfn->dev.kobj.sd)
+                sysfs_remove_link(&virtfn->dev.kobj, "physfn");
 
         mutex_lock(&iov->dev->sriov->lock);
-        pci_remove_bus_device(virtfn);
+        pci_stop_and_remove_bus_device(virtfn);
         virtfn_remove_bus(dev->bus, virtfn_bus(dev, id));
         mutex_unlock(&iov->dev->sriov->lock);
 
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 8d9616b821ca..6b54b23b990b 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -419,6 +419,16 @@ static void pci_device_shutdown(struct device *dev)
                 drv->shutdown(pci_dev);
         pci_msi_shutdown(pci_dev);
         pci_msix_shutdown(pci_dev);
+
+        /*
+         * Devices may be enabled to wake up by runtime PM, but they need not
+         * be supposed to wake up the system from its "power off" state (e.g.
+         * ACPI S5).  Therefore disable wakeup for all devices that aren't
+         * supposed to wake up the system at this point.  The state argument
+         * will be ignored by pci_enable_wake().
+         */
+        if (!device_may_wakeup(dev))
+                pci_enable_wake(pci_dev, PCI_UNKNOWN, false);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index a3cd8cad532a..a55e248618cd 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -330,7 +330,7 @@ static void remove_callback(struct device *dev)
         struct pci_dev *pdev = to_pci_dev(dev);
 
         mutex_lock(&pci_remove_rescan_mutex);
-        pci_remove_bus_device(pdev);
+        pci_stop_and_remove_bus_device(pdev);
         mutex_unlock(&pci_remove_rescan_mutex);
 }
 
@@ -366,7 +366,10 @@ dev_bus_rescan_store(struct device *dev, struct device_attribute *attr,
 
         if (val) {
                 mutex_lock(&pci_remove_rescan_mutex);
-                pci_rescan_bus(bus);
+                if (!pci_is_root_bus(bus) && list_empty(&bus->devices))
+                        pci_rescan_bus_bridge_resize(bus->self);
+                else
+                        pci_rescan_bus(bus);
                 mutex_unlock(&pci_remove_rescan_mutex);
         }
         return count;
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 053670e09e2b..815674415267 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -94,6 +94,9 @@ u8 pci_cache_line_size;
  */
 unsigned int pcibios_max_latency = 255;
 
+/* If set, the PCIe ARI capability will not be used. */
+static bool pcie_ari_disabled;
+
 /**
  * pci_bus_max_busnr - returns maximum PCI bus number of given bus' children
  * @bus: pointer to PCI bus structure to search
@@ -825,6 +828,19 @@ EXPORT_SYMBOL(pci_choose_state);
 #define pcie_cap_has_sltctl2(type, flags)               \
                 ((flags & PCI_EXP_FLAGS_VERS) > 1)
 
+static struct pci_cap_saved_state *pci_find_saved_cap(
+        struct pci_dev *pci_dev, char cap)
+{
+        struct pci_cap_saved_state *tmp;
+        struct hlist_node *pos;
+
+        hlist_for_each_entry(tmp, pos, &pci_dev->saved_cap_space, next) {
+                if (tmp->cap.cap_nr == cap)
+                        return tmp;
+        }
+        return NULL;
+}
+
 static int pci_save_pcie_state(struct pci_dev *dev)
 {
         int pos, i = 0;
@@ -959,6 +975,7 @@ void pci_restore_state(struct pci_dev *dev)
 {
         int i;
         u32 val;
+        int tries;
 
         if (!dev->state_saved)
                 return;
@@ -973,12 +990,16 @@ void pci_restore_state(struct pci_dev *dev)
          */
         for (i = 15; i >= 0; i--) {
                 pci_read_config_dword(dev, i * 4, &val);
-                if (val != dev->saved_config_space[i]) {
+                tries = 10;             
+                while (tries && val != dev->saved_config_space[i]) {
                         dev_dbg(&dev->dev, "restoring config "
                                 "space at offset %#x (was %#x, writing %#x)\n",
                                 i, val, (int)dev->saved_config_space[i]);
                         pci_write_config_dword(dev,i * 4,
                                 dev->saved_config_space[i]);
+                        pci_read_config_dword(dev, i * 4, &val);
+                        mdelay(10);
+                        tries--;
                 }
         }
         pci_restore_pcix_state(dev);
@@ -1864,6 +1885,12 @@ void platform_pci_wakeup_init(struct pci_dev *dev)
         platform_pci_sleep_wake(dev, false);
 }
 
+static void pci_add_saved_cap(struct pci_dev *pci_dev,
+        struct pci_cap_saved_state *new_cap)
+{
+        hlist_add_head(&new_cap->next, &pci_dev->saved_cap_space);
+}
+
 /**
  * pci_add_save_buffer - allocate buffer for saving given capability registers
  * @dev: the PCI device
@@ -1911,6 +1938,15 @@ void pci_allocate_cap_save_buffers(struct pci_dev *dev)
                         "unable to preallocate PCI-X save buffer\n");
 }
 
+void pci_free_cap_save_buffers(struct pci_dev *dev)
+{
+        struct pci_cap_saved_state *tmp;
+        struct hlist_node *pos, *n;
+
+        hlist_for_each_entry_safe(tmp, pos, n, &dev->saved_cap_space, next)
+                kfree(tmp);
+}
+
 /**
  * pci_enable_ari - enable ARI forwarding if hardware support it
  * @dev: the PCI device
@@ -1922,7 +1958,7 @@ void pci_enable_ari(struct pci_dev *dev)
         u16 flags, ctrl;
         struct pci_dev *bridge;
 
-        if (!pci_is_pcie(dev) || dev->devfn)
+        if (pcie_ari_disabled || !pci_is_pcie(dev) || dev->devfn)
                 return;
 
         pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ARI);
@@ -3661,6 +3697,68 @@ int pci_is_reassigndev(struct pci_dev *dev)
         return (pci_specified_resource_alignment(dev) != 0);
 }
 
+/*
+ * This function disables memory decoding and releases memory resources
+ * of the device specified by kernel's boot parameter 'pci=resource_alignment='.
+ * It also rounds up size to specified alignment.
+ * Later on, the kernel will assign page-aligned memory resource back
+ * to the device.
+ */
+void pci_reassigndev_resource_alignment(struct pci_dev *dev)
+{
+        int i;
+        struct resource *r;
+        resource_size_t align, size;
+        u16 command;
+
+        if (!pci_is_reassigndev(dev))
+                return;
+
+        if (dev->hdr_type == PCI_HEADER_TYPE_NORMAL &&
+            (dev->class >> 8) == PCI_CLASS_BRIDGE_HOST) {
+                dev_warn(&dev->dev,
+                        "Can't reassign resources to host bridge.\n");
+                return;
+        }
+
+        dev_info(&dev->dev,
+                "Disabling memory decoding and releasing memory resources.\n");
+        pci_read_config_word(dev, PCI_COMMAND, &command);
+        command &= ~PCI_COMMAND_MEMORY;
+        pci_write_config_word(dev, PCI_COMMAND, command);
+
+        align = pci_specified_resource_alignment(dev);
+        for (i = 0; i < PCI_BRIDGE_RESOURCES; i++) {
+                r = &dev->resource[i];
+                if (!(r->flags & IORESOURCE_MEM))
+                        continue;
+                size = resource_size(r);
+                if (size < align) {
+                        size = align;
+                        dev_info(&dev->dev,
+                                "Rounding up size of resource #%d to %#llx.\n",
+                                i, (unsigned long long)size);
+                }
+                r->end = size - 1;
+                r->start = 0;
+        }
+        /* Need to disable bridge's resource window,
+         * to enable the kernel to reassign new resource
+         * window later on.
+         */
+        if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE &&
+            (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
+                for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
+                        r = &dev->resource[i];
+                        if (!(r->flags & IORESOURCE_MEM))
+                                continue;
+                        r->end = resource_size(r) - 1;
+                        r->start = 0;
+                }
+                pci_disable_bridge_window(dev);
+        }
+}
+
 ssize_t pci_set_resource_alignment_param(const char *buf, size_t count)
 {
         if (count > RESOURCE_ALIGNMENT_PARAM_SIZE - 1)
@@ -3739,10 +3837,14 @@ static int __init pci_setup(char *str)
                                 pci_no_msi();
                         } else if (!strcmp(str, "noaer")) {
                                 pci_no_aer();
+                        } else if (!strncmp(str, "realloc=", 8)) {
+                                pci_realloc_get_opt(str + 8);
                         } else if (!strncmp(str, "realloc", 7)) {
-                                pci_realloc();
+                                pci_realloc_get_opt("on");
                         } else if (!strcmp(str, "nodomains")) {
                                 pci_no_domains();
+                        } else if (!strncmp(str, "noari", 5)) {
+                                pcie_ari_disabled = true;
                         } else if (!strncmp(str, "cbiosize=", 9)) {
                                 pci_cardbus_io_size = memparse(str + 9, &str);
                         } else if (!strncmp(str, "cbmemsize=", 10)) {
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 1009a5e88e53..e4943479b234 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -73,6 +73,7 @@ extern int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
 extern void pci_pm_init(struct pci_dev *dev);
 extern void platform_pci_wakeup_init(struct pci_dev *dev);
 extern void pci_allocate_cap_save_buffers(struct pci_dev *dev);
+void pci_free_cap_save_buffers(struct pci_dev *dev);
 
 static inline void pci_wakeup_event(struct pci_dev *dev)
 {
@@ -148,7 +149,7 @@ static inline void pci_no_msi(void) { }
 static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
 #endif
 
-extern void pci_realloc(void);
+void pci_realloc_get_opt(char *);
 
 static inline int pci_no_d1d2(struct pci_dev *dev)
 {
@@ -207,6 +208,8 @@ enum pci_bar_type {
         pci_bar_mem64,          /* A 64-bit memory BAR */
 };
 
+bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *pl,
+                                int crs_timeout);
 extern int pci_setup_device(struct pci_dev *dev);
 extern int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
                                 struct resource *res, unsigned int reg);
@@ -225,11 +228,8 @@ static inline int pci_ari_enabled(struct pci_bus *bus)
         return bus->self && bus->self->ari_enabled;
 }
 
-#ifdef CONFIG_PCI_QUIRKS
-extern int pci_is_reassigndev(struct pci_dev *dev);
-resource_size_t pci_specified_resource_alignment(struct pci_dev *dev);
+void pci_reassigndev_resource_alignment(struct pci_dev *dev);
 extern void pci_disable_bridge_window(struct pci_dev *dev);
-#endif
 
 /* Single Root I/O Virtualization */
 struct pci_sriov {
diff --git a/drivers/pci/pcie/Kconfig b/drivers/pci/pcie/Kconfig
index 72962cc92e0a..6c8bc5809787 100644
--- a/drivers/pci/pcie/Kconfig
+++ b/drivers/pci/pcie/Kconfig
@@ -55,6 +55,31 @@ config PCIEASPM_DEBUG
           This enables PCI Express ASPM debug support. It will add per-device
           interface to control ASPM.
 
+choice
+        prompt "Default ASPM policy"
+        default PCIEASPM_DEFAULT
+        depends on PCIEASPM
+
+config PCIEASPM_DEFAULT
+        bool "BIOS default"
+        depends on PCIEASPM
+        help
+          Use the BIOS defaults for PCI Express ASPM.
+
+config PCIEASPM_POWERSAVE
+        bool "Powersave"
+        depends on PCIEASPM
+        help
+          Enable PCI Express ASPM L0s and L1 where possible, even if the
+          BIOS did not.
+
+config PCIEASPM_PERFORMANCE
+        bool "Performance"
+        depends on PCIEASPM
+        help
+          Disable PCI Express ASPM L0s and L1, even if the BIOS enabled them.
+endchoice
+
 config PCIE_PME
         def_bool y
         depends on PCIEPORTBUS && PM_RUNTIME && EXPERIMENTAL && ACPI
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 24f049e73952..4bdef24cd412 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -76,7 +76,15 @@ static LIST_HEAD(link_list);
 #define POLICY_DEFAULT 0        /* BIOS default setting */
 #define POLICY_PERFORMANCE 1    /* high performance */
 #define POLICY_POWERSAVE 2      /* high power saving */
+
+#ifdef CONFIG_PCIEASPM_PERFORMANCE
+static int aspm_policy = POLICY_PERFORMANCE;
+#elif defined CONFIG_PCIEASPM_POWERSAVE
+static int aspm_policy = POLICY_POWERSAVE;
+#else
 static int aspm_policy;
+#endif
+
 static const char *policy_str[] = {
         [POLICY_DEFAULT] = "default",
         [POLICY_PERFORMANCE] = "performance",
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h
index bd00a01aef14..eea2ca2375e6 100644
--- a/drivers/pci/pcie/portdrv.h
+++ b/drivers/pci/pcie/portdrv.h
@@ -34,6 +34,18 @@ struct pci_dev;
 
 extern void pcie_clear_root_pme_status(struct pci_dev *dev);
 
+#ifdef CONFIG_HOTPLUG_PCI_PCIE
+extern bool pciehp_msi_disabled;
+
+static inline bool pciehp_no_msi(void)
+{
+        return pciehp_msi_disabled;
+}
+
+#else  /* !CONFIG_HOTPLUG_PCI_PCIE */
+static inline bool pciehp_no_msi(void) { return false; }
+#endif /* !CONFIG_HOTPLUG_PCI_PCIE */
+
 #ifdef CONFIG_PCIE_PME
 extern bool pcie_pme_msi_disabled;
 
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 595654a1a6a6..2f589a54f9bd 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -19,6 +19,17 @@
 #include "../pci.h"
 #include "portdrv.h"
 
+bool pciehp_msi_disabled;
+
+static int __init pciehp_setup(char *str)
+{
+        if (!strncmp(str, "nomsi", 5))
+                pciehp_msi_disabled = true;
+
+        return 1;
+}
+__setup("pcie_hp=", pciehp_setup);
+
 /**
  * release_pcie_device - free PCI Express port service device structure
  * @dev: Port service device to release
@@ -189,8 +200,9 @@ static int init_service_irqs(struct pci_dev *dev, int *irqs, int mask)
 {
         int i, irq = -1;
 
-        /* We have to use INTx if MSI cannot be used for PCIe PME. */
-        if ((mask & PCIE_PORT_SERVICE_PME) && pcie_pme_no_msi()) {
+        /* We have to use INTx if MSI cannot be used for PCIe PME or pciehp. */
+        if (((mask & PCIE_PORT_SERVICE_PME) && pcie_pme_no_msi()) ||
+            ((mask & PCIE_PORT_SERVICE_HP) && pciehp_no_msi())) {
                 if (dev->pin)
                         irq = dev->irq;
                 goto no_msi;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 71eac9cd724d..5e1ca3c58a7d 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -15,6 +15,8 @@
 #define CARDBUS_LATENCY_TIMER   176     /* secondary latency timer */
 #define CARDBUS_RESERVE_BUSNR   3
 
+static LIST_HEAD(pci_host_bridges);
+
 /* Ugh.  Need to stop exporting this to modules. */
 LIST_HEAD(pci_root_buses);
 EXPORT_SYMBOL(pci_root_buses);
@@ -42,6 +44,82 @@ int no_pci_devices(void)
 }
 EXPORT_SYMBOL(no_pci_devices);
 
+static struct pci_host_bridge *pci_host_bridge(struct pci_dev *dev)
+{
+        struct pci_bus *bus;
+        struct pci_host_bridge *bridge;
+
+        bus = dev->bus;
+        while (bus->parent)
+                bus = bus->parent;
+
+        list_for_each_entry(bridge, &pci_host_bridges, list) {
+                if (bridge->bus == bus)
+                        return bridge;
+        }
+
+        return NULL;
+}
+
+static bool resource_contains(struct resource *res1, struct resource *res2)
+{
+        return res1->start <= res2->start && res1->end >= res2->end;
+}
+
+void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
+                             struct resource *res)
+{
+        struct pci_host_bridge *bridge = pci_host_bridge(dev);
+        struct pci_host_bridge_window *window;
+        resource_size_t offset = 0;
+
+        list_for_each_entry(window, &bridge->windows, list) {
+                if (resource_type(res) != resource_type(window->res))
+                        continue;
+
+                if (resource_contains(window->res, res)) {
+                        offset = window->offset;
+                        break;
+                }
+        }
+
+        region->start = res->start - offset;
+        region->end = res->end - offset;
+}
+EXPORT_SYMBOL(pcibios_resource_to_bus);
+
+static bool region_contains(struct pci_bus_region *region1,
+                            struct pci_bus_region *region2)
+{
+        return region1->start <= region2->start && region1->end >= region2->end;
+}
+
+void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
+                             struct pci_bus_region *region)
+{
+        struct pci_host_bridge *bridge = pci_host_bridge(dev);
+        struct pci_host_bridge_window *window;
+        struct pci_bus_region bus_region;
+        resource_size_t offset = 0;
+
+        list_for_each_entry(window, &bridge->windows, list) {
+                if (resource_type(res) != resource_type(window->res))
+                        continue;
+
+                bus_region.start = window->res->start - window->offset;
+                bus_region.end = window->res->end - window->offset;
+
+                if (region_contains(&bus_region, region)) {
+                        offset = window->offset;
+                        break;
+                }
+        }
+
+        res->start = region->start + offset;
+        res->end = region->end + offset;
+}
+EXPORT_SYMBOL(pcibios_bus_to_resource);
+
 /*
  * PCI Bus Class
  */
@@ -135,6 +213,7 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 {
         u32 l, sz, mask;
         u16 orig_cmd;
+        struct pci_bus_region region;
 
         mask = type ? PCI_ROM_ADDRESS_MASK : ~0;
 
@@ -214,11 +293,13 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
                         /* Address above 32-bit boundary; disable the BAR */
                         pci_write_config_dword(dev, pos, 0);
                         pci_write_config_dword(dev, pos + 4, 0);
-                        res->start = 0;
-                        res->end = sz64;
+                        region.start = 0;
+                        region.end = sz64;
+                        pcibios_bus_to_resource(dev, res, &region);
                 } else {
-                        res->start = l64;
-                        res->end = l64 + sz64;
+                        region.start = l64;
+                        region.end = l64 + sz64;
+                        pcibios_bus_to_resource(dev, res, &region);
                         dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n",
                                    pos, res);
                 }
@@ -228,8 +309,9 @@ int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
                 if (!sz)
                         goto fail;
 
-                res->start = l;
-                res->end = l + sz;
+                region.start = l;
+                region.end = l + sz;
+                pcibios_bus_to_resource(dev, res, &region);
 
                 dev_printk(KERN_DEBUG, &dev->dev, "reg %x: %pR\n", pos, res);
         }
@@ -266,7 +348,8 @@ static void __devinit pci_read_bridge_io(struct pci_bus *child)
         struct pci_dev *dev = child->self;
         u8 io_base_lo, io_limit_lo;
         unsigned long base, limit;
-        struct resource *res;
+        struct pci_bus_region region;
+        struct resource *res, res2;
 
         res = child->resource[0];
         pci_read_config_byte(dev, PCI_IO_BASE, &io_base_lo);
@@ -284,10 +367,14 @@ static void __devinit pci_read_bridge_io(struct pci_bus *child)
 
         if (base && base <= limit) {
                 res->flags = (io_base_lo & PCI_IO_RANGE_TYPE_MASK) | IORESOURCE_IO;
+                res2.flags = res->flags;
+                region.start = base;
+                region.end = limit + 0xfff;
+                pcibios_bus_to_resource(dev, &res2, &region);
                 if (!res->start)
-                        res->start = base;
+                        res->start = res2.start;
                 if (!res->end)
-                        res->end = limit + 0xfff;
+                        res->end = res2.end;
                 dev_printk(KERN_DEBUG, &dev->dev, "  bridge window %pR\n", res);
         }
 }
@@ -297,6 +384,7 @@ static void __devinit pci_read_bridge_mmio(struct pci_bus *child)
         struct pci_dev *dev = child->self;
         u16 mem_base_lo, mem_limit_lo;
         unsigned long base, limit;
+        struct pci_bus_region region;
         struct resource *res;
 
         res = child->resource[1];
@@ -306,8 +394,9 @@ static void __devinit pci_read_bridge_mmio(struct pci_bus *child)
         limit = (mem_limit_lo & PCI_MEMORY_RANGE_MASK) << 16;
         if (base && base <= limit) {
                 res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | IORESOURCE_MEM;
-                res->start = base;
-                res->end = limit + 0xfffff;
+                region.start = base;
+                region.end = limit + 0xfffff;
+                pcibios_bus_to_resource(dev, res, &region);
                 dev_printk(KERN_DEBUG, &dev->dev, "  bridge window %pR\n", res);
         }
 }
@@ -317,6 +406,7 @@ static void __devinit pci_read_bridge_mmio_pref(struct pci_bus *child)
         struct pci_dev *dev = child->self;
         u16 mem_base_lo, mem_limit_lo;
         unsigned long base, limit;
+        struct pci_bus_region region;
         struct resource *res;
 
         res = child->resource[2];
@@ -353,8 +443,9 @@ static void __devinit pci_read_bridge_mmio_pref(struct pci_bus *child)
                                          IORESOURCE_MEM | IORESOURCE_PREFETCH;
                 if (res->flags & PCI_PREF_RANGE_TYPE_64)
                         res->flags |= IORESOURCE_MEM_64;
-                res->start = base;
-                res->end = limit + 0xfffff;
+                region.start = base;
+                region.end = limit + 0xfffff;
+                pcibios_bus_to_resource(dev, res, &region);
                 dev_printk(KERN_DEBUG, &dev->dev, "  bridge window %pR\n", res);
         }
 }
@@ -900,6 +991,8 @@ int pci_setup_device(struct pci_dev *dev)
         u8 hdr_type;
         struct pci_slot *slot;
         int pos = 0;
+        struct pci_bus_region region;
+        struct resource *res;
 
         if (pci_read_config_byte(dev, PCI_HEADER_TYPE, &hdr_type))
                 return -EIO;
@@ -926,12 +1019,10 @@ int pci_setup_device(struct pci_dev *dev)
 
         pci_read_config_dword(dev, PCI_CLASS_REVISION, &class);
         dev->revision = class & 0xff;
-        class >>= 8;                                /* upper 3 bytes */
-        dev->class = class;
-        class >>= 8;
+        dev->class = class >> 8;                    /* upper 3 bytes */
 
-        dev_printk(KERN_DEBUG, &dev->dev, "[%04x:%04x] type %d class %#08x\n",
-                   dev->vendor, dev->device, dev->hdr_type, class);
+        dev_printk(KERN_DEBUG, &dev->dev, "[%04x:%04x] type %02x class %#08x\n",
+                   dev->vendor, dev->device, dev->hdr_type, dev->class);
 
         /* need to have dev->class ready */
         dev->cfg_size = pci_cfg_space_size(dev);
@@ -963,20 +1054,28 @@ int pci_setup_device(struct pci_dev *dev)
                         u8 progif;
                         pci_read_config_byte(dev, PCI_CLASS_PROG, &progif);
                         if ((progif & 1) == 0) {
-                                dev->resource[0].start = 0x1F0;
-                                dev->resource[0].end = 0x1F7;
-                                dev->resource[0].flags = LEGACY_IO_RESOURCE;
-                                dev->resource[1].start = 0x3F6;
-                                dev->resource[1].end = 0x3F6;
-                                dev->resource[1].flags = LEGACY_IO_RESOURCE;
+                                region.start = 0x1F0;
+                                region.end = 0x1F7;
+                                res = &dev->resource[0];
+                                res->flags = LEGACY_IO_RESOURCE;
+                                pcibios_bus_to_resource(dev, res, &region);
+                                region.start = 0x3F6;
+                                region.end = 0x3F6;
+                                res = &dev->resource[1];
+                                res->flags = LEGACY_IO_RESOURCE;
+                                pcibios_bus_to_resource(dev, res, &region);
                         }
                         if ((progif & 4) == 0) {
-                                dev->resource[2].start = 0x170;
-                                dev->resource[2].end = 0x177;
-                                dev->resource[2].flags = LEGACY_IO_RESOURCE;
-                                dev->resource[3].start = 0x376;
-                                dev->resource[3].end = 0x376;
-                                dev->resource[3].flags = LEGACY_IO_RESOURCE;
+                                region.start = 0x170;
+                                region.end = 0x177;
+                                res = &dev->resource[2];
+                                res->flags = LEGACY_IO_RESOURCE;
+                                pcibios_bus_to_resource(dev, res, &region);
+                                region.start = 0x376;
+                                region.end = 0x376;
+                                res = &dev->resource[3];
+                                res->flags = LEGACY_IO_RESOURCE;
+                                pcibios_bus_to_resource(dev, res, &region);
                         }
                 }
                 break;
@@ -1013,8 +1112,8 @@ int pci_setup_device(struct pci_dev *dev)
                 return -EIO;
 
         bad:
-                dev_err(&dev->dev, "ignoring class %02x (doesn't match header "
-                        "type %02x)\n", class, dev->hdr_type);
+                dev_err(&dev->dev, "ignoring class %#08x (doesn't match header "
+                        "type %02x)\n", dev->class, dev->hdr_type);
                 dev->class = PCI_CLASS_NOT_DEFINED;
         }
 
@@ -1026,6 +1125,7 @@ static void pci_release_capabilities(struct pci_dev *dev)
 {
         pci_vpd_release(dev);
         pci_iov_release(dev);
+        pci_free_cap_save_buffers(dev);
 }
 
 /**
@@ -1118,40 +1218,54 @@ struct pci_dev *alloc_pci_dev(void)
 }
 EXPORT_SYMBOL(alloc_pci_dev);
 
-/*
- * Read the config data for a PCI device, sanity-check it
- * and fill in the dev structure...
- */
-static struct pci_dev *pci_scan_device(struct pci_bus *bus, int devfn)
+bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *l,
+                                 int crs_timeout)
 {
-        struct pci_dev *dev;
-        u32 l;
         int delay = 1;
 
-        if (pci_bus_read_config_dword(bus, devfn, PCI_VENDOR_ID, &l))
-                return NULL;
+        if (pci_bus_read_config_dword(bus, devfn, PCI_VENDOR_ID, l))
+                return false;
 
         /* some broken boards return 0 or ~0 if a slot is empty: */
-        if (l == 0xffffffff || l == 0x00000000 ||
-            l == 0x0000ffff || l == 0xffff0000)
-                return NULL;
+        if (*l == 0xffffffff || *l == 0x00000000 ||
+            *l == 0x0000ffff || *l == 0xffff0000)
+                return false;
 
         /* Configuration request Retry Status */
-        while (l == 0xffff0001) {
+        while (*l == 0xffff0001) {
+                if (!crs_timeout)
+                        return false;
+
                 msleep(delay);
                 delay *= 2;
-                if (pci_bus_read_config_dword(bus, devfn, PCI_VENDOR_ID, &l))
-                        return NULL;
+                if (pci_bus_read_config_dword(bus, devfn, PCI_VENDOR_ID, l))
+                        return false;
                 /* Card hasn't responded in 60 seconds?  Must be stuck. */
-                if (delay > 60 * 1000) {
+                if (delay > crs_timeout) {
                         printk(KERN_WARNING "pci %04x:%02x:%02x.%d: not "
                                         "responding\n", pci_domain_nr(bus),
                                         bus->number, PCI_SLOT(devfn),
                                         PCI_FUNC(devfn));
-                        return NULL;
+                        return false;
                 }
         }
 
+        return true;
+}
+EXPORT_SYMBOL(pci_bus_read_dev_vendor_id);
+
+/*
+ * Read the config data for a PCI device, sanity-check it
+ * and fill in the dev structure...
+ */
+static struct pci_dev *pci_scan_device(struct pci_bus *bus, int devfn)
+{
+        struct pci_dev *dev;
+        u32 l;
+
+        if (!pci_bus_read_dev_vendor_id(bus, devfn, &l, 60*1000))
+                return NULL;
+
         dev = alloc_pci_dev();
         if (!dev)
                 return NULL;
@@ -1212,6 +1326,9 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
         /* Fix up broken headers */
         pci_fixup_device(pci_fixup_header, dev);
 
+        /* moved out from quirk header fixup code */
+        pci_reassigndev_resource_alignment(dev);
+
         /* Clear the state_saved flag. */
         dev->state_saved = false;
 
@@ -1530,21 +1647,27 @@ unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus)
 struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
                 struct pci_ops *ops, void *sysdata, struct list_head *resources)
 {
-        int error, i;
+        int error;
+        struct pci_host_bridge *bridge;
         struct pci_bus *b, *b2;
         struct device *dev;
-        struct pci_bus_resource *bus_res, *n;
+        struct pci_host_bridge_window *window, *n;
         struct resource *res;
+        resource_size_t offset;
+        char bus_addr[64];
+        char *fmt;
+
+        bridge = kzalloc(sizeof(*bridge), GFP_KERNEL);
+        if (!bridge)
+                return NULL;
 
         b = pci_alloc_bus();
         if (!b)
-                return NULL;
+                goto err_bus;
 
         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-        if (!dev) {
-                kfree(b);
-                return NULL;
-        }
+        if (!dev)
+                goto err_dev;
 
         b->sysdata = sysdata;
         b->ops = ops;
@@ -1556,10 +1679,6 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
                 goto err_out;
         }
 
-        down_write(&pci_bus_sem);
-        list_add_tail(&b->node, &pci_root_buses);
-        up_write(&pci_bus_sem);
-
         dev->parent = parent;
         dev->release = pci_release_bus_bridge_dev;
         dev_set_name(dev, "pci%04x:%02x", pci_domain_nr(b), bus);
@@ -1585,31 +1704,53 @@ struct pci_bus *pci_create_root_bus(struct device *parent, int bus,
 
         b->number = b->secondary = bus;
 
-        /* Add initial resources to the bus */
-        list_for_each_entry_safe(bus_res, n, resources, list)
-                list_move_tail(&bus_res->list, &b->resources);
+        bridge->bus = b;
+        INIT_LIST_HEAD(&bridge->windows);
 
         if (parent)
                 dev_info(parent, "PCI host bridge to bus %s\n", dev_name(&b->dev));
         else
                 printk(KERN_INFO "PCI host bridge to bus %s\n", dev_name(&b->dev));
 
-        pci_bus_for_each_resource(b, res, i) {
-                if (res)
-                        dev_info(&b->dev, "root bus resource %pR\n", res);
+        /* Add initial resources to the bus */
+        list_for_each_entry_safe(window, n, resources, list) {
+                list_move_tail(&window->list, &bridge->windows);
+                res = window->res;
+                offset = window->offset;
+                pci_bus_add_resource(b, res, 0);
+                if (offset) {
+                        if (resource_type(res) == IORESOURCE_IO)
+                                fmt = " (bus address [%#06llx-%#06llx])";
+                        else
+                                fmt = " (bus address [%#010llx-%#010llx])";
+                        snprintf(bus_addr, sizeof(bus_addr), fmt,
+                                 (unsigned long long) (res->start - offset),
+                                 (unsigned long long) (res->end - offset));
+                } else
+                        bus_addr[0] = '\0';
+                dev_info(&b->dev, "root bus resource %pR%s\n", res, bus_addr);
         }
 
+        down_write(&pci_bus_sem);
+        list_add_tail(&bridge->list, &pci_host_bridges);
+        list_add_tail(&b->node, &pci_root_buses);
+        up_write(&pci_bus_sem);
+
         return b;
 
 class_dev_reg_err:
         device_unregister(dev);
 dev_reg_err:
         down_write(&pci_bus_sem);
+        list_del(&bridge->list);
         list_del(&b->node);
         up_write(&pci_bus_sem);
 err_out:
         kfree(dev);
+err_dev:
         kfree(b);
+err_bus:
+        kfree(bridge);
         return NULL;
 }
 
@@ -1667,36 +1808,29 @@ EXPORT_SYMBOL(pci_scan_bus);
 
 #ifdef CONFIG_HOTPLUG
 /**
- * pci_rescan_bus - scan a PCI bus for devices.
- * @bus: PCI bus to scan
+ * pci_rescan_bus_bridge_resize - scan a PCI bus for devices.
+ * @bridge: PCI bridge for the bus to scan
  *
- * Scan a PCI bus and child buses for new devices, adds them,
- * and enables them.
+ * Scan a PCI bus and child buses for new devices, add them,
+ * and enable them, resizing bridge mmio/io resource if necessary
+ * and possible.  The caller must ensure the child devices are already
+ * removed for resizing to occur.
  *
  * Returns the max number of subordinate bus discovered.
  */
-unsigned int __ref pci_rescan_bus(struct pci_bus *bus)
+unsigned int __ref pci_rescan_bus_bridge_resize(struct pci_dev *bridge)
 {
         unsigned int max;
-        struct pci_dev *dev;
+        struct pci_bus *bus = bridge->subordinate;
 
         max = pci_scan_child_bus(bus);
 
-        down_read(&pci_bus_sem);
-        list_for_each_entry(dev, &bus->devices, bus_list)
-                if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
-                    dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)
-                        if (dev->subordinate)
-                                pci_bus_size_bridges(dev->subordinate);
-        up_read(&pci_bus_sem);
+        pci_assign_unassigned_bridge_resources(bridge);
 
-        pci_bus_assign_resources(bus);
-        pci_enable_bridges(bus);
         pci_bus_add_devices(bus);
 
         return max;
 }
-EXPORT_SYMBOL_GPL(pci_rescan_bus);
 
 EXPORT_SYMBOL(pci_add_new_bus);
 EXPORT_SYMBOL(pci_scan_slot);
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f722c5f6951a..4bf71028556b 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -26,73 +26,12 @@
 #include <linux/dmi.h>
 #include <linux/pci-aspm.h>
 #include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/ktime.h>
 #include <asm/dma.h>    /* isa_dma_bridge_buggy */
 #include "pci.h"
 
 /*
- * This quirk function disables memory decoding and releases memory resources
- * of the device specified by kernel's boot parameter 'pci=resource_alignment='.
- * It also rounds up size to specified alignment.
- * Later on, the kernel will assign page-aligned memory resource back
- * to the device.
- */
-static void __devinit quirk_resource_alignment(struct pci_dev *dev)
-{
-        int i;
-        struct resource *r;
-        resource_size_t align, size;
-        u16 command;
-
-        if (!pci_is_reassigndev(dev))
-                return;
-
-        if (dev->hdr_type == PCI_HEADER_TYPE_NORMAL &&
-            (dev->class >> 8) == PCI_CLASS_BRIDGE_HOST) {
-                dev_warn(&dev->dev,
-                        "Can't reassign resources to host bridge.\n");
-                return;
-        }
-
-        dev_info(&dev->dev,
-                "Disabling memory decoding and releasing memory resources.\n");
-        pci_read_config_word(dev, PCI_COMMAND, &command);
-        command &= ~PCI_COMMAND_MEMORY;
-        pci_write_config_word(dev, PCI_COMMAND, command);
-
-        align = pci_specified_resource_alignment(dev);
-        for (i=0; i < PCI_BRIDGE_RESOURCES; i++) {
-                r = &dev->resource[i];
-                if (!(r->flags & IORESOURCE_MEM))
-                        continue;
-                size = resource_size(r);
-                if (size < align) {
-                        size = align;
-                        dev_info(&dev->dev,
-                                "Rounding up size of resource #%d to %#llx.\n",
-                                i, (unsigned long long)size);
-                }
-                r->end = size - 1;
-                r->start = 0;
-        }
-        /* Need to disable bridge's resource window,
-         * to enable the kernel to reassign new resource
-         * window later on.
-         */
-        if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE &&
-            (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
-                for (i = PCI_BRIDGE_RESOURCES; i < PCI_NUM_RESOURCES; i++) {
-                        r = &dev->resource[i];
-                        if (!(r->flags & IORESOURCE_MEM))
-                                continue;
-                        r->end = resource_size(r) - 1;
-                        r->start = 0;
-                }
-                pci_disable_bridge_window(dev);
-        }
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, quirk_resource_alignment);
-
-/*
  * Decoding should be disabled for a PCI device during BAR sizing to avoid
  * conflict. But doing so may cause problems on host bridge and perhaps other
  * key system devices. For devices that need to have mmio decoding always-on,
@@ -100,10 +39,10 @@ DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, quirk_resource_alignment);
  */
 static void __devinit quirk_mmio_always_on(struct pci_dev *dev)
 {
-        if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST)
-                dev->mmio_always_on = 1;
+        dev->mmio_always_on = 1;
 }
-DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_mmio_always_on);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_ANY_ID, PCI_ANY_ID,
+                                PCI_CLASS_BRIDGE_HOST, 8, quirk_mmio_always_on);
 
 /* The Mellanox Tavor device gives false positive parity errors
  * Mark this device with a broken_parity_status, to allow
@@ -1002,12 +941,12 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C597_0,	quirk_vt
  */
 static void quirk_cardbus_legacy(struct pci_dev *dev)
 {
-        if ((PCI_CLASS_BRIDGE_CARDBUS << 8) ^ dev->class)
-                return;
         pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0);
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
-DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, quirk_cardbus_legacy);
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
+                        PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy);
+DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID,
+                        PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy);
 
 /*
  * Following the PCI ordering rules is optional on the AMD762. I'm not
@@ -1164,17 +1103,20 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, qui
 
 static void __devinit quirk_no_ata_d3(struct pci_dev *pdev)
 {
-        /* Quirk the legacy ATA devices only. The AHCI ones are ok */
-        if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE)
-                pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
+        pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3;
 }
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, quirk_no_ata_d3);
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, quirk_no_ata_d3);
+/* Quirk the legacy ATA devices only. The AHCI ones are ok */
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID,
+                                PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
+                                PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
 /* ALi loses some register settings that we cannot then restore */
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, quirk_no_ata_d3);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID,
+                                PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
 /* VIA comes back fine but we need to keep it alive or ACPI GTM failures
    occur when mode detecting */
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_no_ata_d3);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID,
+                                PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3);
 
 /* This was originally an Alpha specific thing, but it really fits here.
  * The i82375 PCI/EISA bridge appears as non-classified. Fix that.
@@ -1873,8 +1815,7 @@ static void __devinit quirk_netmos(struct pci_dev *dev)
         case PCI_DEVICE_ID_NETMOS_9745:
         case PCI_DEVICE_ID_NETMOS_9845:
         case PCI_DEVICE_ID_NETMOS_9855:
-                if ((dev->class >> 8) == PCI_CLASS_COMMUNICATION_SERIAL &&
-                    num_parallel) {
+                if (num_parallel) {
                         dev_info(&dev->dev, "Netmos %04x (%u parallel, "
                                 "%u serial); changing class SERIAL to OTHER "
                                 "(use parport_serial)\n",
@@ -1884,7 +1825,8 @@ static void __devinit quirk_netmos(struct pci_dev *dev)
                 }
         }
 }
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, quirk_netmos);
+DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID,
+                         PCI_CLASS_COMMUNICATION_SERIAL, 8, quirk_netmos);
 
 static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
 {
@@ -1952,7 +1894,8 @@ static void __devinit quirk_e100_interrupt(struct pci_dev *dev)
 
         iounmap(csr);
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_e100_interrupt);
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID,
+                        PCI_CLASS_NETWORK_ETHERNET, 8, quirk_e100_interrupt);
 
 /*
  * The 82575 and 82598 may experience data corruption issues when transitioning
@@ -2834,12 +2777,11 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors);
 static void __devinit fixup_ti816x_class(struct pci_dev* dev)
 {
         /* TI 816x devices do not have class code set when in PCIe boot mode */
-        if (dev->class == PCI_CLASS_NOT_DEFINED) {
-                dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n");
-                dev->class = PCI_CLASS_MULTIMEDIA_VIDEO;
-        }
+        dev_info(&dev->dev, "Setting PCI class for 816x PCIe device\n");
+        dev->class = PCI_CLASS_MULTIMEDIA_VIDEO;
 }
-DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_TI, 0xb800, fixup_ti816x_class);
+DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_TI, 0xb800,
+                                 PCI_CLASS_NOT_DEFINED, 0, fixup_ti816x_class);
 
 /* Some PCIe devices do not work reliably with the claimed maximum
  * payload size supported.
@@ -2924,17 +2866,73 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f8, quirk_intel_mc_errata);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata);
 
+
+static void do_one_fixup_debug(void (*fn)(struct pci_dev *dev), struct pci_dev *dev)
+{
+        ktime_t calltime, delta, rettime;
+        unsigned long long duration;
+
+        printk(KERN_DEBUG "calling  %pF @ %i for %s\n",
+                        fn, task_pid_nr(current), dev_name(&dev->dev));
+        calltime = ktime_get();
+        fn(dev);
+        rettime = ktime_get();
+        delta = ktime_sub(rettime, calltime);
+        duration = (unsigned long long) ktime_to_ns(delta) >> 10;
+        printk(KERN_DEBUG "pci fixup %pF returned after %lld usecs for %s\n",
+                        fn, duration, dev_name(&dev->dev));
+}
+
+/*
+ * Some BIOS implementations leave the Intel GPU interrupts enabled,
+ * even though no one is handling them (f.e. i915 driver is never loaded).
+ * Additionally the interrupt destination is not set up properly
+ * and the interrupt ends up -somewhere-.
+ *
+ * These spurious interrupts are "sticky" and the kernel disables
+ * the (shared) interrupt line after 100.000+ generated interrupts.
+ *
+ * Fix it by disabling the still enabled interrupts.
+ * This resolves crashes often seen on monitor unplug.
+ */
+#define I915_DEIER_REG 0x4400c
+static void __devinit disable_igfx_irq(struct pci_dev *dev)
+{
+        void __iomem *regs = pci_iomap(dev, 0, 0);
+        if (regs == NULL) {
+                dev_warn(&dev->dev, "igfx quirk: Can't iomap PCI device\n");
+                return;
+        }
+
+        /* Check if any interrupt line is still enabled */
+        if (readl(regs + I915_DEIER_REG) != 0) {
+                dev_warn(&dev->dev, "BIOS left Intel GPU interrupts enabled; "
+                        "disabling\n");
+
+                writel(0, regs + I915_DEIER_REG);
+        }
+
+        pci_iounmap(dev, regs);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
+
 static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,
                           struct pci_fixup *end)
 {
-        while (f < end) {
-                if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
-                    (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
+        for (; f < end; f++)
+                if ((f->class == (u32) (dev->class >> f->class_shift) ||
+                     f->class == (u32) PCI_ANY_ID) &&
+                    (f->vendor == dev->vendor ||
+                     f->vendor == (u16) PCI_ANY_ID) &&
+                    (f->device == dev->device ||
+                     f->device == (u16) PCI_ANY_ID)) {
                         dev_dbg(&dev->dev, "calling %pF\n", f->hook);
-                        f->hook(dev);
+                        if (initcall_debug)
+                                do_one_fixup_debug(f->hook, dev);
+                        else
+                                f->hook(dev);
                 }
-                f++;
-        }
 }
 
 extern struct pci_fixup __start_pci_fixups_early[];
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index ef8b18c48f26..fd77e2bde2e8 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -79,7 +79,7 @@ EXPORT_SYMBOL(pci_remove_bus);
 
 static void __pci_remove_behind_bridge(struct pci_dev *dev);
 /**
- * pci_remove_bus_device - remove a PCI device and any children
+ * pci_stop_and_remove_bus_device - remove a PCI device and any children
  * @dev: the device to remove
  *
  * Remove a PCI device from the device lists, informing the drivers
@@ -90,7 +90,7 @@ static void __pci_remove_behind_bridge(struct pci_dev *dev);
  * device lists, remove the /proc entry, and notify userspace
  * (/sbin/hotplug).
  */
-static void __pci_remove_bus_device(struct pci_dev *dev)
+void __pci_remove_bus_device(struct pci_dev *dev)
 {
         if (dev->subordinate) {
                 struct pci_bus *b = dev->subordinate;
@@ -102,7 +102,9 @@ static void __pci_remove_bus_device(struct pci_dev *dev)
 
         pci_destroy_dev(dev);
 }
-void pci_remove_bus_device(struct pci_dev *dev)
+EXPORT_SYMBOL(__pci_remove_bus_device);
+
+void pci_stop_and_remove_bus_device(struct pci_dev *dev)
 {
         pci_stop_bus_device(dev);
         __pci_remove_bus_device(dev);
@@ -127,14 +129,15 @@ static void pci_stop_behind_bridge(struct pci_dev *dev)
 }
 
 /**
- * pci_remove_behind_bridge - remove all devices behind a PCI bridge
+ * pci_stop_and_remove_behind_bridge - stop and remove all devices behind
+ *                                       a PCI bridge
  * @dev: PCI bridge device
  *
  * Remove all devices on the bus, except for the parent bridge.
  * This also removes any child buses, and any devices they may
  * contain in a depth-first manner.
  */
-void pci_remove_behind_bridge(struct pci_dev *dev)
+void pci_stop_and_remove_behind_bridge(struct pci_dev *dev)
 {
         pci_stop_behind_bridge(dev);
         __pci_remove_behind_bridge(dev);
@@ -144,7 +147,15 @@ static void pci_stop_bus_devices(struct pci_bus *bus)
 {
         struct list_head *l, *n;
 
-        list_for_each_safe(l, n, &bus->devices) {
+        /*
+         * VFs could be removed by pci_stop_and_remove_bus_device() in the
+         *  pci_stop_bus_devices() code path for PF.
+         *  aka, bus->devices get updated in the process.
+         * but VFs are inserted after PFs when SRIOV is enabled for PF,
+         * We can iterate the list backwards to get prev valid PF instead
+         *  of removed VF.
+         */
+        list_for_each_prev_safe(l, n, &bus->devices) {
                 struct pci_dev *dev = pci_dev_b(l);
                 pci_stop_bus_device(dev);
         }
@@ -166,6 +177,6 @@ void pci_stop_bus_device(struct pci_dev *dev)
         pci_stop_dev(dev);
 }
 
-EXPORT_SYMBOL(pci_remove_bus_device);
-EXPORT_SYMBOL(pci_remove_behind_bridge);
+EXPORT_SYMBOL(pci_stop_and_remove_bus_device);
+EXPORT_SYMBOL(pci_stop_and_remove_behind_bridge);
 EXPORT_SYMBOL_GPL(pci_stop_bus_device);
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 86b69f85f900..8fa2d4be88de 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -25,10 +25,13 @@
 #include <linux/ioport.h>
 #include <linux/cache.h>
 #include <linux/slab.h>
+#include <asm-generic/pci-bridge.h>
 #include "pci.h"
 
-struct resource_list_x {
-        struct resource_list_x *next;
+unsigned int pci_flags;
+
+struct pci_dev_resource {
+        struct list_head list;
         struct resource *res;
         struct pci_dev *dev;
         resource_size_t start;
@@ -38,21 +41,14 @@ struct resource_list_x {
         unsigned long flags;
 };
 
-#define free_list(type, head) do {                      \
-        struct type *list, *tmp;                        \
-        for (list = (head)->next; list;) {              \
-                tmp = list;                             \
-                list = list->next;                      \
-                kfree(tmp);                             \
-        }                                               \
-        (head)->next = NULL;                            \
-} while (0)
-
-int pci_realloc_enable = 0;
-#define pci_realloc_enabled() pci_realloc_enable
-void pci_realloc(void)
+static void free_list(struct list_head *head)
 {
-        pci_realloc_enable = 1;
+        struct pci_dev_resource *dev_res, *tmp;
+
+        list_for_each_entry_safe(dev_res, tmp, head, list) {
+                list_del(&dev_res->list);
+                kfree(dev_res);
+        }
 }
 
 /**
@@ -64,21 +60,18 @@ void pci_realloc(void)
  * @add_size:   additional size to be optionally added
  *              to the resource
  */
-static void add_to_list(struct resource_list_x *head,
+static int add_to_list(struct list_head *head,
                  struct pci_dev *dev, struct resource *res,
                  resource_size_t add_size, resource_size_t min_align)
 {
-        struct resource_list_x *list = head;
-        struct resource_list_x *ln = list->next;
-        struct resource_list_x *tmp;
+        struct pci_dev_resource *tmp;
 
-        tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
+        tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
         if (!tmp) {
                 pr_warning("add_to_list: kmalloc() failed!\n");
-                return;
+                return -ENOMEM;
         }
 
-        tmp->next = ln;
         tmp->res = res;
         tmp->dev = dev;
         tmp->start = res->start;
@@ -86,19 +79,100 @@ static void add_to_list(struct resource_list_x *head,
         tmp->flags = res->flags;
         tmp->add_size = add_size;
         tmp->min_align = min_align;
-        list->next = tmp;
+
+        list_add(&tmp->list, head);
+
+        return 0;
 }
 
-static void add_to_failed_list(struct resource_list_x *head,
-                                struct pci_dev *dev, struct resource *res)
+static void remove_from_list(struct list_head *head,
+                                 struct resource *res)
 {
-        add_to_list(head, dev, res,
-                        0 /* dont care */,
-                        0 /* dont care */);
+        struct pci_dev_resource *dev_res, *tmp;
+
+        list_for_each_entry_safe(dev_res, tmp, head, list) {
+                if (dev_res->res == res) {
+                        list_del(&dev_res->list);
+                        kfree(dev_res);
+                        break;
+                }
+        }
+}
+
+static resource_size_t get_res_add_size(struct list_head *head,
+                                        struct resource *res)
+{
+        struct pci_dev_resource *dev_res;
+
+        list_for_each_entry(dev_res, head, list) {
+                if (dev_res->res == res) {
+                        int idx = res - &dev_res->dev->resource[0];
+
+                        dev_printk(KERN_DEBUG, &dev_res->dev->dev,
+                                 "res[%d]=%pR get_res_add_size add_size %llx\n",
+                                 idx, dev_res->res,
+                                 (unsigned long long)dev_res->add_size);
+
+                        return dev_res->add_size;
+                }
+        }
+
+        return 0;
+}
+
+/* Sort resources by alignment */
+static void pdev_sort_resources(struct pci_dev *dev, struct list_head *head)
+{
+        int i;
+
+        for (i = 0; i < PCI_NUM_RESOURCES; i++) {
+                struct resource *r;
+                struct pci_dev_resource *dev_res, *tmp;
+                resource_size_t r_align;
+                struct list_head *n;
+
+                r = &dev->resource[i];
+
+                if (r->flags & IORESOURCE_PCI_FIXED)
+                        continue;
+
+                if (!(r->flags) || r->parent)
+                        continue;
+
+                r_align = pci_resource_alignment(dev, r);
+                if (!r_align) {
+                        dev_warn(&dev->dev, "BAR %d: %pR has bogus alignment\n",
+                                 i, r);
+                        continue;
+                }
+
+                tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
+                if (!tmp)
+                        panic("pdev_sort_resources(): "
+                              "kmalloc() failed!\n");
+                tmp->res = r;
+                tmp->dev = dev;
+
+                /* fallback is smallest one or list is empty*/
+                n = head;
+                list_for_each_entry(dev_res, head, list) {
+                        resource_size_t align;
+
+                        align = pci_resource_alignment(dev_res->dev,
+                                                         dev_res->res);
+
+                        if (r_align > align) {
+                                n = &dev_res->list;
+                                break;
+                        }
+                }
+                /* Insert it just before n*/
+                list_add_tail(&tmp->list, n);
+        }
 }
 
 static void __dev_sort_resources(struct pci_dev *dev,
-                                 struct resource_list *head)
+                                 struct list_head *head)
 {
         u16 class = dev->class >> 8;
 
@@ -136,49 +210,54 @@ static inline void reset_resource(struct resource *res)
  * additional resources for the element, provided the element
  * is in the head list.
  */
-static void reassign_resources_sorted(struct resource_list_x *realloc_head,
-                struct resource_list *head)
+static void reassign_resources_sorted(struct list_head *realloc_head,
+                struct list_head *head)
 {
         struct resource *res;
-        struct resource_list_x *list, *tmp, *prev;
-        struct resource_list *hlist;
+        struct pci_dev_resource *add_res, *tmp;
+        struct pci_dev_resource *dev_res;
         resource_size_t add_size;
         int idx;
 
-        prev = realloc_head;
-        for (list = realloc_head->next; list;) {
-                res = list->res;
+        list_for_each_entry_safe(add_res, tmp, realloc_head, list) {
+                bool found_match = false;
+
+                res = add_res->res;
                 /* skip resource that has been reset */
                 if (!res->flags)
                         goto out;
 
                 /* skip this resource if not found in head list */
-                for (hlist = head->next; hlist && hlist->res != res;
-                                hlist = hlist->next);
-                if (!hlist) { /* just skip */
-                        prev = list;
-                        list = list->next;
-                        continue;
+                list_for_each_entry(dev_res, head, list) {
+                        if (dev_res->res == res) {
+                                found_match = true;
+                                break;
+                        }
                 }
+                if (!found_match)/* just skip */
+                        continue;
 
-                idx = res - &list->dev->resource[0];
-                add_size=list->add_size;
+                idx = res - &add_res->dev->resource[0];
+                add_size = add_res->add_size;
                 if (!resource_size(res)) {
-                        res->start = list->start;
+                        res->start = add_res->start;
                         res->end = res->start + add_size - 1;
-                        if(pci_assign_resource(list->dev, idx))
+                        if (pci_assign_resource(add_res->dev, idx))
                                 reset_resource(res);
                 } else {
-                        resource_size_t align = list->min_align;
-                        res->flags |= list->flags & (IORESOURCE_STARTALIGN|IORESOURCE_SIZEALIGN);
-                        if (pci_reassign_resource(list->dev, idx, add_size, align))
-                                dev_printk(KERN_DEBUG, &list->dev->dev, "failed to add optional resources res=%pR\n",
-                                                        res);
+                        resource_size_t align = add_res->min_align;
+                        res->flags |= add_res->flags &
+                                 (IORESOURCE_STARTALIGN|IORESOURCE_SIZEALIGN);
+                        if (pci_reassign_resource(add_res->dev, idx,
+                                                  add_size, align))
+                                dev_printk(KERN_DEBUG, &add_res->dev->dev,
+                                           "failed to add %llx res[%d]=%pR\n",
+                                           (unsigned long long)add_size,
+                                           idx, res);
                 }
 out:
-                tmp = list;
-                prev->next = list = list->next;
-                kfree(tmp);
+                list_del(&add_res->list);
+                kfree(add_res);
         }
 }
 
@@ -192,35 +271,99 @@ out:
  * Satisfy resource requests of each element in the list. Add
  * requests that could not satisfied to the failed_list.
  */
-static void assign_requested_resources_sorted(struct resource_list *head,
-                                 struct resource_list_x *fail_head)
+static void assign_requested_resources_sorted(struct list_head *head,
+                                 struct list_head *fail_head)
 {
         struct resource *res;
-        struct resource_list *list;
+        struct pci_dev_resource *dev_res;
         int idx;
 
-        for (list = head->next; list; list = list->next) {
-                res = list->res;
-                idx = res - &list->dev->resource[0];
-                if (resource_size(res) && pci_assign_resource(list->dev, idx)) {
-                        if (fail_head && !pci_is_root_bus(list->dev->bus)) {
+        list_for_each_entry(dev_res, head, list) {
+                res = dev_res->res;
+                idx = res - &dev_res->dev->resource[0];
+                if (resource_size(res) &&
+                    pci_assign_resource(dev_res->dev, idx)) {
+                        if (fail_head && !pci_is_root_bus(dev_res->dev->bus)) {
                                 /*
                                  * if the failed res is for ROM BAR, and it will
                                  * be enabled later, don't add it to the list
                                  */
                                 if (!((idx == PCI_ROM_RESOURCE) &&
                                       (!(res->flags & IORESOURCE_ROM_ENABLE))))
-                                        add_to_failed_list(fail_head, list->dev, res);
+                                        add_to_list(fail_head,
+                                                    dev_res->dev, res,
+                                                    0 /* dont care */,
+                                                    0 /* dont care */);
                         }
                         reset_resource(res);
                 }
         }
 }
 
-static void __assign_resources_sorted(struct resource_list *head,
-                                 struct resource_list_x *realloc_head,
-                                 struct resource_list_x *fail_head)
+static void __assign_resources_sorted(struct list_head *head,
+                                 struct list_head *realloc_head,
+                                 struct list_head *fail_head)
 {
+        /*
+         * Should not assign requested resources at first.
+         *   they could be adjacent, so later reassign can not reallocate
+         *   them one by one in parent resource window.
+         * Try to assign requested + add_size at begining
+         *  if could do that, could get out early.
+         *  if could not do that, we still try to assign requested at first,
+         *    then try to reassign add_size for some resources.
+         */
+        LIST_HEAD(save_head);
+        LIST_HEAD(local_fail_head);
+        struct pci_dev_resource *save_res;
+        struct pci_dev_resource *dev_res;
+
+        /* Check if optional add_size is there */
+        if (!realloc_head || list_empty(realloc_head))
+                goto requested_and_reassign;
+
+        /* Save original start, end, flags etc at first */
+        list_for_each_entry(dev_res, head, list) {
+                if (add_to_list(&save_head, dev_res->dev, dev_res->res, 0, 0)) {
+                        free_list(&save_head);
+                        goto requested_and_reassign;
+                }
+        }
+
+        /* Update res in head list with add_size in realloc_head list */
+        list_for_each_entry(dev_res, head, list)
+                dev_res->res->end += get_res_add_size(realloc_head,
+                                                        dev_res->res);
+
+        /* Try updated head list with add_size added */
+        assign_requested_resources_sorted(head, &local_fail_head);
+
+        /* all assigned with add_size ? */
+        if (list_empty(&local_fail_head)) {
+                /* Remove head list from realloc_head list */
+                list_for_each_entry(dev_res, head, list)
+                        remove_from_list(realloc_head, dev_res->res);
+                free_list(&save_head);
+                free_list(head);
+                return;
+        }
+
+        free_list(&local_fail_head);
+        /* Release assigned resource */
+        list_for_each_entry(dev_res, head, list)
+                if (dev_res->res->parent)
+                        release_resource(dev_res->res);
+        /* Restore start/end/flags from saved list */
+        list_for_each_entry(save_res, &save_head, list) {
+                struct resource *res = save_res->res;
+
+                res->start = save_res->start;
+                res->end = save_res->end;
+                res->flags = save_res->flags;
+        }
+        free_list(&save_head);
+
+requested_and_reassign:
         /* Satisfy the must-have resource requests */
         assign_requested_resources_sorted(head, fail_head);
 
@@ -228,28 +371,27 @@ static void __assign_resources_sorted(struct resource_list *head,
                 requests */
         if (realloc_head)
                 reassign_resources_sorted(realloc_head, head);
-        free_list(resource_list, head);
+        free_list(head);
 }
 
 static void pdev_assign_resources_sorted(struct pci_dev *dev,
-                                 struct resource_list_x *fail_head)
+                                 struct list_head *add_head,
+                                 struct list_head *fail_head)
 {
-        struct resource_list head;
+        LIST_HEAD(head);
 
-        head.next = NULL;
         __dev_sort_resources(dev, &head);
-        __assign_resources_sorted(&head, NULL, fail_head);
+        __assign_resources_sorted(&head, add_head, fail_head);
 
 }
 
 static void pbus_assign_resources_sorted(const struct pci_bus *bus,
-                                         struct resource_list_x *realloc_head,
-                                         struct resource_list_x *fail_head)
+                                         struct list_head *realloc_head,
+                                         struct list_head *fail_head)
 {
         struct pci_dev *dev;
-        struct resource_list head;
+        LIST_HEAD(head);
 
-        head.next = NULL;
         list_for_each_entry(dev, &bus->devices, bus_list)
                 __dev_sort_resources(dev, &head);
 
@@ -548,20 +690,6 @@ static resource_size_t calculate_memsize(resource_size_t size,
         return size;
 }
 
-static resource_size_t get_res_add_size(struct resource_list_x *realloc_head,
-                                        struct resource *res)
-{
-        struct resource_list_x *list;
-
-        /* check if it is in realloc_head list */
-        for (list = realloc_head->next; list && list->res != res;
-                        list = list->next);
-        if (list)
-                return list->add_size;
-
-        return 0;
-}
-
 /**
  * pbus_size_io() - size the io window of a given bus
  *
@@ -576,7 +704,7 @@ static resource_size_t get_res_add_size(struct resource_list_x *realloc_head,
  * We must be careful with the ISA aliasing though.
  */
 static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
-                resource_size_t add_size, struct resource_list_x *realloc_head)
+                resource_size_t add_size, struct list_head *realloc_head)
 {
         struct pci_dev *dev;
         struct resource *b_res = find_free_bus_resource(bus, IORESOURCE_IO);
@@ -612,7 +740,7 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
         if (children_add_size > add_size)
                 add_size = children_add_size;
         size1 = (!realloc_head || (realloc_head && !add_size)) ? size0 :
-                calculate_iosize(size, min_size+add_size, size1,
+                calculate_iosize(size, min_size, add_size + size1,
                         resource_size(b_res), 4096);
         if (!size0 && !size1) {
                 if (b_res->start || b_res->end)
@@ -626,8 +754,12 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
         b_res->start = 4096;
         b_res->end = b_res->start + size0 - 1;
         b_res->flags |= IORESOURCE_STARTALIGN;
-        if (size1 > size0 && realloc_head)
+        if (size1 > size0 && realloc_head) {
                 add_to_list(realloc_head, bus->self, b_res, size1-size0, 4096);
+                dev_printk(KERN_DEBUG, &bus->self->dev, "bridge window "
+                                 "%pR to [bus %02x-%02x] add_size %lx\n", b_res,
+                                 bus->secondary, bus->subordinate, size1-size0);
+        }
 }
 
 /**
@@ -644,7 +776,7 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
 static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
                          unsigned long type, resource_size_t min_size,
                         resource_size_t add_size,
-                        struct resource_list_x *realloc_head)
+                        struct list_head *realloc_head)
 {
         struct pci_dev *dev;
         resource_size_t min_align, align, size, size0, size1;
@@ -726,7 +858,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
         if (children_add_size > add_size)
                 add_size = children_add_size;
         size1 = (!realloc_head || (realloc_head && !add_size)) ? size0 :
-                calculate_memsize(size, min_size+add_size, 0,
+                calculate_memsize(size, min_size, add_size,
                                 resource_size(b_res), min_align);
         if (!size0 && !size1) {
                 if (b_res->start || b_res->end)
@@ -739,8 +871,12 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
         b_res->start = min_align;
         b_res->end = size0 + min_align - 1;
         b_res->flags |= IORESOURCE_STARTALIGN | mem64_mask;
-        if (size1 > size0 && realloc_head)
+        if (size1 > size0 && realloc_head) {
                 add_to_list(realloc_head, bus->self, b_res, size1-size0, min_align);
+                dev_printk(KERN_DEBUG, &bus->self->dev, "bridge window "
+                                 "%pR to [bus %02x-%02x] add_size %llx\n", b_res,
+                                 bus->secondary, bus->subordinate, (unsigned long long)size1-size0);
+        }
         return 1;
 }
 
@@ -754,25 +890,48 @@ unsigned long pci_cardbus_resource_alignment(struct resource *res)
 }
 
 static void pci_bus_size_cardbus(struct pci_bus *bus,
-                        struct resource_list_x *realloc_head)
+                        struct list_head *realloc_head)
 {
         struct pci_dev *bridge = bus->self;
         struct resource *b_res = &bridge->resource[PCI_BRIDGE_RESOURCES];
+        resource_size_t b_res_3_size = pci_cardbus_mem_size * 2;
         u16 ctrl;
 
+        if (b_res[0].parent)
+                goto handle_b_res_1;
         /*
          * Reserve some resources for CardBus.  We reserve
          * a fixed amount of bus space for CardBus bridges.
          */
-        b_res[0].start = 0;
-        b_res[0].flags |= IORESOURCE_IO | IORESOURCE_SIZEALIGN;
-        if (realloc_head)
-                add_to_list(realloc_head, bridge, b_res, pci_cardbus_io_size, 0 /* dont care */);
+        b_res[0].start = pci_cardbus_io_size;
+        b_res[0].end = b_res[0].start + pci_cardbus_io_size - 1;
+        b_res[0].flags |= IORESOURCE_IO | IORESOURCE_STARTALIGN;
+        if (realloc_head) {
+                b_res[0].end -= pci_cardbus_io_size;
+                add_to_list(realloc_head, bridge, b_res, pci_cardbus_io_size,
+                                pci_cardbus_io_size);
+        }
 
-        b_res[1].start = 0;
-        b_res[1].flags |= IORESOURCE_IO | IORESOURCE_SIZEALIGN;
-        if (realloc_head)
-                add_to_list(realloc_head, bridge, b_res+1, pci_cardbus_io_size, 0 /* dont care */);
+handle_b_res_1:
+        if (b_res[1].parent)
+                goto handle_b_res_2;
+        b_res[1].start = pci_cardbus_io_size;
+        b_res[1].end = b_res[1].start + pci_cardbus_io_size - 1;
+        b_res[1].flags |= IORESOURCE_IO | IORESOURCE_STARTALIGN;
+        if (realloc_head) {
+                b_res[1].end -= pci_cardbus_io_size;
+                add_to_list(realloc_head, bridge, b_res+1, pci_cardbus_io_size,
+                                 pci_cardbus_io_size);
+        }
+
+handle_b_res_2:
+        /* MEM1 must not be pref mmio */
+        pci_read_config_word(bridge, PCI_CB_BRIDGE_CONTROL, &ctrl);
+        if (ctrl & PCI_CB_BRIDGE_CTL_PREFETCH_MEM1) {
+                ctrl &= ~PCI_CB_BRIDGE_CTL_PREFETCH_MEM1;
+                pci_write_config_word(bridge, PCI_CB_BRIDGE_CONTROL, ctrl);
+                pci_read_config_word(bridge, PCI_CB_BRIDGE_CONTROL, &ctrl);
+        }
 
         /*
          * Check whether prefetchable memory is supported
@@ -785,38 +944,46 @@ static void pci_bus_size_cardbus(struct pci_bus *bus,
                 pci_read_config_word(bridge, PCI_CB_BRIDGE_CONTROL, &ctrl);
         }
 
+        if (b_res[2].parent)
+                goto handle_b_res_3;
         /*
          * If we have prefetchable memory support, allocate
          * two regions.  Otherwise, allocate one region of
          * twice the size.
          */
         if (ctrl & PCI_CB_BRIDGE_CTL_PREFETCH_MEM0) {
-                b_res[2].start = 0;
-                b_res[2].flags |= IORESOURCE_MEM | IORESOURCE_PREFETCH | IORESOURCE_SIZEALIGN;
-                if (realloc_head)
-                        add_to_list(realloc_head, bridge, b_res+2, pci_cardbus_mem_size, 0 /* dont care */);
-
-                b_res[3].start = 0;
-                b_res[3].flags |= IORESOURCE_MEM | IORESOURCE_SIZEALIGN;
-                if (realloc_head)
-                        add_to_list(realloc_head, bridge, b_res+3, pci_cardbus_mem_size, 0 /* dont care */);
-        } else {
-                b_res[3].start = 0;
-                b_res[3].flags |= IORESOURCE_MEM | IORESOURCE_SIZEALIGN;
-                if (realloc_head)
-                        add_to_list(realloc_head, bridge, b_res+3, pci_cardbus_mem_size * 2, 0 /* dont care */);
+                b_res[2].start = pci_cardbus_mem_size;
+                b_res[2].end = b_res[2].start + pci_cardbus_mem_size - 1;
+                b_res[2].flags |= IORESOURCE_MEM | IORESOURCE_PREFETCH |
+                                  IORESOURCE_STARTALIGN;
+                if (realloc_head) {
+                        b_res[2].end -= pci_cardbus_mem_size;
+                        add_to_list(realloc_head, bridge, b_res+2,
+                                 pci_cardbus_mem_size, pci_cardbus_mem_size);
+                }
+
+                /* reduce that to half */
+                b_res_3_size = pci_cardbus_mem_size;
+        }
+
+handle_b_res_3:
+        if (b_res[3].parent)
+                goto handle_done;
+        b_res[3].start = pci_cardbus_mem_size;
+        b_res[3].end = b_res[3].start + b_res_3_size - 1;
+        b_res[3].flags |= IORESOURCE_MEM | IORESOURCE_STARTALIGN;
+        if (realloc_head) {
+                b_res[3].end -= b_res_3_size;
+                add_to_list(realloc_head, bridge, b_res+3, b_res_3_size,
+                                 pci_cardbus_mem_size);
         }
 
-        /* set the size of the resource to zero, so that the resource does not
-         * get assigned during required-resource allocation cycle but gets assigned
-         * during the optional-resource allocation cycle.
-         */
-        b_res[0].start = b_res[1].start = b_res[2].start = b_res[3].start = 1;
-        b_res[0].end = b_res[1].end = b_res[2].end = b_res[3].end = 0;
+handle_done:
+        ;
 }
 
 void __ref __pci_bus_size_bridges(struct pci_bus *bus,
-                        struct resource_list_x *realloc_head)
+                        struct list_head *realloc_head)
 {
         struct pci_dev *dev;
         unsigned long mask, prefmask;
@@ -858,7 +1025,8 @@ void __ref __pci_bus_size_bridges(struct pci_bus *bus,
                  * Follow thru
                  */
         default:
-                pbus_size_io(bus, 0, additional_io_size, realloc_head);
+                pbus_size_io(bus, realloc_head ? 0 : additional_io_size,
+                             additional_io_size, realloc_head);
                 /* If the bridge supports prefetchable range, size it
                    separately. If it doesn't, or its prefetchable window
                    has already been allocated by arch code, try
@@ -866,11 +1034,15 @@ void __ref __pci_bus_size_bridges(struct pci_bus *bus,
                    resources. */
                 mask = IORESOURCE_MEM;
                 prefmask = IORESOURCE_MEM | IORESOURCE_PREFETCH;
-                if (pbus_size_mem(bus, prefmask, prefmask, 0, additional_mem_size, realloc_head))
+                if (pbus_size_mem(bus, prefmask, prefmask,
+                                  realloc_head ? 0 : additional_mem_size,
+                                  additional_mem_size, realloc_head))
                         mask = prefmask; /* Success, size non-prefetch only. */
                 else
                         additional_mem_size += additional_mem_size;
-                pbus_size_mem(bus, mask, IORESOURCE_MEM, 0, additional_mem_size, realloc_head);
+                pbus_size_mem(bus, mask, IORESOURCE_MEM,
+                                realloc_head ? 0 : additional_mem_size,
+                                additional_mem_size, realloc_head);
                 break;
         }
 }
@@ -882,8 +1054,8 @@ void __ref pci_bus_size_bridges(struct pci_bus *bus)
 EXPORT_SYMBOL(pci_bus_size_bridges);
 
 static void __ref __pci_bus_assign_resources(const struct pci_bus *bus,
-                                         struct resource_list_x *realloc_head,
-                                         struct resource_list_x *fail_head)
+                                         struct list_head *realloc_head,
+                                         struct list_head *fail_head)
 {
         struct pci_bus *b;
         struct pci_dev *dev;
@@ -922,17 +1094,19 @@ void __ref pci_bus_assign_resources(const struct pci_bus *bus)
 EXPORT_SYMBOL(pci_bus_assign_resources);
 
 static void __ref __pci_bridge_assign_resources(const struct pci_dev *bridge,
-                                         struct resource_list_x *fail_head)
+                                         struct list_head *add_head,
+                                         struct list_head *fail_head)
 {
         struct pci_bus *b;
 
-        pdev_assign_resources_sorted((struct pci_dev *)bridge, fail_head);
+        pdev_assign_resources_sorted((struct pci_dev *)bridge,
+                                         add_head, fail_head);
 
         b = bridge->subordinate;
         if (!b)
                 return;
 
-        __pci_bus_assign_resources(b, NULL, fail_head);
+        __pci_bus_assign_resources(b, add_head, fail_head);
 
         switch (bridge->class >> 8) {
         case PCI_CLASS_BRIDGE_PCI:
@@ -1095,6 +1269,58 @@ static int __init pci_get_max_depth(void)
         return depth;
 }
 
+/*
+ * -1: undefined, will auto detect later
+ *  0: disabled by user
+ *  1: disabled by auto detect
+ *  2: enabled by user
+ *  3: enabled by auto detect
+ */
+enum enable_type {
+        undefined = -1,
+        user_disabled,
+        auto_disabled,
+        user_enabled,
+        auto_enabled,
+};
+
+static enum enable_type pci_realloc_enable __initdata = undefined;
+void __init pci_realloc_get_opt(char *str)
+{
+        if (!strncmp(str, "off", 3))
+                pci_realloc_enable = user_disabled;
+        else if (!strncmp(str, "on", 2))
+                pci_realloc_enable = user_enabled;
+}
+static bool __init pci_realloc_enabled(void)
+{
+        return pci_realloc_enable >= user_enabled;
+}
+
+static void __init pci_realloc_detect(void)
+{
+#if defined(CONFIG_PCI_IOV) && defined(CONFIG_PCI_REALLOC_ENABLE_AUTO)
+        struct pci_dev *dev = NULL;
+
+        if (pci_realloc_enable != undefined)
+                return;
+
+        for_each_pci_dev(dev) {
+                int i;
+
+                for (i = PCI_IOV_RESOURCES; i <= PCI_IOV_RESOURCE_END; i++) {
+                        struct resource *r = &dev->resource[i];
+
+                        /* Not assigned, or rejected by kernel ? */
+                        if (r->flags && !r->start) {
+                                pci_realloc_enable = auto_enabled;
+
+                                return;
+                        }
+                }
+        }
+#endif
+}
 
 /*
  * first try will not touch pci bridge res
@@ -1105,59 +1331,57 @@ void __init
 pci_assign_unassigned_resources(void)
 {
         struct pci_bus *bus;
-        struct resource_list_x realloc_list; /* list of resources that
+        LIST_HEAD(realloc_head); /* list of resources that
                                         want additional resources */
+        struct list_head *add_list = NULL;
         int tried_times = 0;
         enum release_type rel_type = leaf_only;
-        struct resource_list_x head, *list;
+        LIST_HEAD(fail_head);
+        struct pci_dev_resource *fail_res;
         unsigned long type_mask = IORESOURCE_IO | IORESOURCE_MEM |
                                   IORESOURCE_PREFETCH;
-        unsigned long failed_type;
-        int max_depth = pci_get_max_depth();
-        int pci_try_num;
-
+        int pci_try_num = 1;
 
-        head.next = NULL;
-        realloc_list.next = NULL;
+        /* don't realloc if asked to do so */
+        pci_realloc_detect();
+        if (pci_realloc_enabled()) {
+                int max_depth = pci_get_max_depth();
 
-        pci_try_num = max_depth + 1;
-        printk(KERN_DEBUG "PCI: max bus depth: %d pci_try_num: %d\n",
-                 max_depth, pci_try_num);
+                pci_try_num = max_depth + 1;
+                printk(KERN_DEBUG "PCI: max bus depth: %d pci_try_num: %d\n",
+                         max_depth, pci_try_num);
+        }
 
 again:
+        /*
+         * last try will use add_list, otherwise will try good to have as
+         * must have, so can realloc parent bridge resource
+         */
+        if (tried_times + 1 == pci_try_num)
+                add_list = &realloc_head;
         /* Depth first, calculate sizes and alignments of all
            subordinate buses. */
         list_for_each_entry(bus, &pci_root_buses, node)
-                __pci_bus_size_bridges(bus, &realloc_list);
+                __pci_bus_size_bridges(bus, add_list);
 
         /* Depth last, allocate resources and update the hardware. */
         list_for_each_entry(bus, &pci_root_buses, node)
-                __pci_bus_assign_resources(bus, &realloc_list, &head);
-        BUG_ON(realloc_list.next);
+                __pci_bus_assign_resources(bus, add_list, &fail_head);
+        if (add_list)
+                BUG_ON(!list_empty(add_list));
         tried_times++;
 
         /* any device complain? */
-        if (!head.next)
+        if (list_empty(&fail_head))
                 goto enable_and_dump;
 
-        /* don't realloc if asked to do so */
-        if (!pci_realloc_enabled()) {
-                free_list(resource_list_x, &head);
-                goto enable_and_dump;
-        }
+        if (tried_times >= pci_try_num) {
+                if (pci_realloc_enable == undefined)
+                        printk(KERN_INFO "Some PCI device resources are unassigned, try booting with pci=realloc\n");
+                else if (pci_realloc_enable == auto_enabled)
+                        printk(KERN_INFO "Automatically enabled pci realloc, if you have problem, try booting with pci=realloc=off\n");
 
-        failed_type = 0;
-        for (list = head.next; list;) {
-                failed_type |= list->flags;
-                list = list->next;
-        }
-        /*
-         * io port are tight, don't try extra
-         * or if reach the limit, don't want to try more
-         */
-        failed_type &= type_mask;
-        if ((failed_type == IORESOURCE_IO) || (tried_times >= pci_try_num)) {
-                free_list(resource_list_x, &head);
+                free_list(&fail_head);
                 goto enable_and_dump;
         }
 
@@ -1172,25 +1396,23 @@ again:
          * Try to release leaf bridge's resources that doesn't fit resource of
          * child device under that bridge
          */
-        for (list = head.next; list;) {
-                bus = list->dev->bus;
-                pci_bus_release_bridge_resources(bus, list->flags & type_mask,
-                                                  rel_type);
-                list = list->next;
+        list_for_each_entry(fail_res, &fail_head, list) {
+                bus = fail_res->dev->bus;
+                pci_bus_release_bridge_resources(bus,
+                                                 fail_res->flags & type_mask,
+                                                 rel_type);
         }
         /* restore size and flags */
-        for (list = head.next; list;) {
-                struct resource *res = list->res;
+        list_for_each_entry(fail_res, &fail_head, list) {
+                struct resource *res = fail_res->res;
 
-                res->start = list->start;
-                res->end = list->end;
-                res->flags = list->flags;
-                if (list->dev->subordinate)
+                res->start = fail_res->start;
+                res->end = fail_res->end;
+                res->flags = fail_res->flags;
+                if (fail_res->dev->subordinate)
                         res->flags = 0;
-
-                list = list->next;
         }
-        free_list(resource_list_x, &head);
+        free_list(&fail_head);
 
         goto again;
 
@@ -1207,26 +1429,27 @@ enable_and_dump:
 void pci_assign_unassigned_bridge_resources(struct pci_dev *bridge)
 {
         struct pci_bus *parent = bridge->subordinate;
+        LIST_HEAD(add_list); /* list of resources that
+                                        want additional resources */
         int tried_times = 0;
-        struct resource_list_x head, *list;
+        LIST_HEAD(fail_head);
+        struct pci_dev_resource *fail_res;
         int retval;
         unsigned long type_mask = IORESOURCE_IO | IORESOURCE_MEM |
                                   IORESOURCE_PREFETCH;
 
-        head.next = NULL;
-
 again:
-        pci_bus_size_bridges(parent);
-        __pci_bridge_assign_resources(bridge, &head);
-
+        __pci_bus_size_bridges(parent, &add_list);
+        __pci_bridge_assign_resources(bridge, &add_list, &fail_head);
+        BUG_ON(!list_empty(&add_list));
         tried_times++;
 
-        if (!head.next)
+        if (list_empty(&fail_head))
                 goto enable_all;
 
         if (tried_times >= 2) {
                 /* still fail, don't need to try more */
-                free_list(resource_list_x, &head);
+                free_list(&fail_head);
                 goto enable_all;
         }
 
@@ -1237,27 +1460,24 @@ again:
          * Try to release leaf bridge's resources that doesn't fit resource of
          * child device under that bridge
          */
-        for (list = head.next; list;) {
-                struct pci_bus *bus = list->dev->bus;
-                unsigned long flags = list->flags;
+        list_for_each_entry(fail_res, &fail_head, list) {
+                struct pci_bus *bus = fail_res->dev->bus;
+                unsigned long flags = fail_res->flags;
 
                 pci_bus_release_bridge_resources(bus, flags & type_mask,
                                                  whole_subtree);
-                list = list->next;
         }
         /* restore size and flags */
-        for (list = head.next; list;) {
-                struct resource *res = list->res;
+        list_for_each_entry(fail_res, &fail_head, list) {
+                struct resource *res = fail_res->res;
 
-                res->start = list->start;
-                res->end = list->end;
-                res->flags = list->flags;
-                if (list->dev->subordinate)
+                res->start = fail_res->start;
+                res->end = fail_res->end;
+                res->flags = fail_res->flags;
+                if (fail_res->dev->subordinate)
                         res->flags = 0;
-
-                list = list->next;
         }
-        free_list(resource_list_x, &head);
+        free_list(&fail_head);
 
         goto again;
 
@@ -1267,3 +1487,41 @@ enable_all:
         pci_enable_bridges(parent);
 }
 EXPORT_SYMBOL_GPL(pci_assign_unassigned_bridge_resources);
+
+#ifdef CONFIG_HOTPLUG
+/**
+ * pci_rescan_bus - scan a PCI bus for devices.
+ * @bus: PCI bus to scan
+ *
+ * Scan a PCI bus and child buses for new devices, adds them,
+ * and enables them.
+ *
+ * Returns the max number of subordinate bus discovered.
+ */
+unsigned int __ref pci_rescan_bus(struct pci_bus *bus)
+{
+        unsigned int max;
+        struct pci_dev *dev;
+        LIST_HEAD(add_list); /* list of resources that
+                                        want additional resources */
+
+        max = pci_scan_child_bus(bus);
+
+        down_read(&pci_bus_sem);
+        list_for_each_entry(dev, &bus->devices, bus_list)
+                if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
+                    dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)
+                        if (dev->subordinate)
+                                __pci_bus_size_bridges(dev->subordinate,
+                                                         &add_list);
+        up_read(&pci_bus_sem);
+        __pci_bus_assign_resources(bus, &add_list, NULL);
+        BUG_ON(!list_empty(&add_list));
+
+        pci_enable_bridges(bus);
+        pci_bus_add_devices(bus);
+
+        return max;
+}
+EXPORT_SYMBOL_GPL(pci_rescan_bus);
+#endif
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index b66bfdbd21f7..eea85dafc763 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -114,7 +114,6 @@ int pci_claim_resource(struct pci_dev *dev, int resource)
 }
 EXPORT_SYMBOL(pci_claim_resource);
 
-#ifdef CONFIG_PCI_QUIRKS
 void pci_disable_bridge_window(struct pci_dev *dev)
 {
         dev_info(&dev->dev, "disabling bridge mem windows\n");
@@ -127,9 +126,6 @@ void pci_disable_bridge_window(struct pci_dev *dev)
         pci_write_config_dword(dev, PCI_PREF_MEMORY_BASE, 0x0000fff0);
         pci_write_config_dword(dev, PCI_PREF_BASE_UPPER32, 0xffffffff);
 }
-#endif  /* CONFIG_PCI_QUIRKS */
-
-
 
 static int __pci_assign_resource(struct pci_bus *bus, struct pci_dev *dev,
                 int resno, resource_size_t size, resource_size_t align)
@@ -158,22 +154,44 @@ static int __pci_assign_resource(struct pci_bus *bus, struct pci_dev *dev,
         return ret;
 }
 
+/*
+ * Generic function that returns a value indicating that the device's
+ * original BIOS BAR address was not saved and so is not available for
+ * reinstatement.
+ *
+ * Can be over-ridden by architecture specific code that implements
+ * reinstatement functionality rather than leaving it disabled when
+ * normal allocation attempts fail.
+ */
+resource_size_t __weak pcibios_retrieve_fw_addr(struct pci_dev *dev, int idx)
+{
+        return 0;
+}
+
 static int pci_revert_fw_address(struct resource *res, struct pci_dev *dev, 
                 int resno, resource_size_t size)
 {
         struct resource *root, *conflict;
-        resource_size_t start, end;
+        resource_size_t fw_addr, start, end;
         int ret = 0;
 
-        if (res->flags & IORESOURCE_IO)
-                root = &ioport_resource;
-        else
-                root = &iomem_resource;
+        fw_addr = pcibios_retrieve_fw_addr(dev, resno);
+        if (!fw_addr)
+                return 1;
 
         start = res->start;
         end = res->end;
-        res->start = dev->fw_addr[resno];
+        res->start = fw_addr;
         res->end = res->start + size - 1;
+
+        root = pci_find_parent_resource(dev, res);
+        if (!root) {
+                if (res->flags & IORESOURCE_IO)
+                        root = &ioport_resource;
+                else
+                        root = &iomem_resource;
+        }
+
         dev_info(&dev->dev, "BAR %d: trying firmware assignment %pR\n",
                  resno, res);
         conflict = request_resource_conflict(root, res);
@@ -228,16 +246,17 @@ int pci_reassign_resource(struct pci_dev *dev, int resno, resource_size_t addsiz
         int ret;
 
         if (!res->parent) {
-                dev_info(&dev->dev, "BAR %d: can't reassign an unassigned resouce %pR "
+                dev_info(&dev->dev, "BAR %d: can't reassign an unassigned resource %pR "
                          "\n", resno, res);
                 return -EINVAL;
         }
 
-        new_size = resource_size(res) + addsize + min_align;
+        /* already aligned with min_align */
+        new_size = resource_size(res) + addsize;
         ret = _pci_assign_resource(dev, resno, new_size, min_align);
         if (!ret) {
                 res->flags &= ~IORESOURCE_STARTALIGN;
-                dev_info(&dev->dev, "BAR %d: assigned %pR\n", resno, res);
+                dev_info(&dev->dev, "BAR %d: reassigned %pR\n", resno, res);
                 if (resno < PCI_BRIDGE_RESOURCES)
                         pci_update_resource(dev, resno);
         }
@@ -267,7 +286,7 @@ int pci_assign_resource(struct pci_dev *dev, int resno)
          * where firmware left it.  That at least has a chance of
          * working, which is better than just leaving it disabled.
          */
-        if (ret < 0 && dev->fw_addr[resno])
+        if (ret < 0)
                 ret = pci_revert_fw_address(res, dev, resno, size);
 
         if (!ret) {
@@ -279,53 +298,6 @@ int pci_assign_resource(struct pci_dev *dev, int resno)
         return ret;
 }
 
-
-/* Sort resources by alignment */
-void pdev_sort_resources(struct pci_dev *dev, struct resource_list *head)
-{
-        int i;
-
-        for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-                struct resource *r;
-                struct resource_list *list, *tmp;
-                resource_size_t r_align;
-
-                r = &dev->resource[i];
-
-                if (r->flags & IORESOURCE_PCI_FIXED)
-                        continue;
-
-                if (!(r->flags) || r->parent)
-                        continue;
-
-                r_align = pci_resource_alignment(dev, r);
-                if (!r_align) {
-                        dev_warn(&dev->dev, "BAR %d: %pR has bogus alignment\n",
-                                 i, r);
-                        continue;
-                }
-                for (list = head; ; list = list->next) {
-                        resource_size_t align = 0;
-                        struct resource_list *ln = list->next;
-
-                        if (ln)
-                                align = pci_resource_alignment(ln->dev, ln->res);
-
-                        if (r_align > align) {
-                                tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
-                                if (!tmp)
-                                        panic("pdev_sort_resources(): "
-                                              "kmalloc() failed!\n");
-                                tmp->next = ln;
-                                tmp->res = r;
-                                tmp->dev = dev;
-                                list->next = tmp;
-                                break;
-                        }
-                }
-        }
-}
-
 int pci_enable_resources(struct pci_dev *dev, int mask)
 {
         u16 cmd, old_cmd;
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index 401090110922..fd00ff02ab4d 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -544,7 +544,7 @@ static void free_root_bus_devs(struct pci_bus *bus)
                 dev = container_of(bus->devices.next, struct pci_dev,
                                    bus_list);
                 dev_dbg(&dev->dev, "removing device\n");
-                pci_remove_bus_device(dev);
+                pci_stop_and_remove_bus_device(dev);
         }
 }
 
@@ -1044,7 +1044,7 @@ static int pcifront_detach_devices(struct pcifront_device *pdev)
                                 domain, bus, slot, func);
                         continue;
                 }
-                pci_remove_bus_device(pci_dev);
+                pci_stop_and_remove_bus_device(pci_dev);
                 pci_dev_put(pci_dev);
 
                 dev_dbg(&pdev->xdev->dev,
diff --git a/drivers/pcmcia/cardbus.c b/drivers/pcmcia/cardbus.c
index 9a58862f1401..6e75153c5b4f 100644
--- a/drivers/pcmcia/cardbus.c
+++ b/drivers/pcmcia/cardbus.c
@@ -108,5 +108,5 @@ void cb_free(struct pcmcia_socket *s)
         struct pci_dev *bridge = s->cb_dev;
 
         if (bridge)
-                pci_remove_behind_bridge(bridge);
+                pci_stop_and_remove_behind_bridge(bridge);
 }
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 72d731c21d45..9929246895de 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -571,7 +571,7 @@ static void asus_rfkill_hotplug(struct asus_wmi *asus)
                 } else {
                         dev = pci_get_slot(bus, 0);
                         if (dev) {
-                                pci_remove_bus_device(dev);
+                                pci_stop_and_remove_bus_device(dev);
                                 pci_dev_put(dev);
                         }
                 }
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index ea44abd8df48..d9a9e2bedb30 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -646,7 +646,7 @@ static void eeepc_rfkill_hotplug(struct eeepc_laptop *eeepc, acpi_handle handle)
                 } else {
                         dev = pci_get_slot(bus, 0);
                         if (dev) {
-                                pci_remove_bus_device(dev);
+                                pci_stop_and_remove_bus_device(dev);
                                 pci_dev_put(dev);
                         }
                 }
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index 82fa6ce481f0..5e69f468535f 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -132,7 +132,7 @@ static int mpt2sas_remove_dead_ioc_func(void *arg)
                 pdev = ioc->pdev;
                 if ((pdev == NULL))
                         return -1;
-                pci_remove_bus_device(pdev);
+                pci_stop_and_remove_bus_device(pdev);
                 return 0;
 }
 
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 7732d69e49e0..11de5f1be981 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -893,4 +893,5 @@ static void __devinit quirk_usb_early_handoff(struct pci_dev *pdev)
                 quirk_usb_handoff_xhci(pdev);
         pci_disable_device(pdev);
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_usb_early_handoff);
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
+                        PCI_CLASS_SERIAL_USB, 8, quirk_usb_early_handoff);
diff --git a/include/asm-generic/pci-bridge.h b/include/asm-generic/pci-bridge.h
index 4a5aca2a2c94..a5b5d5a89a4f 100644
--- a/include/asm-generic/pci-bridge.h
+++ b/include/asm-generic/pci-bridge.h
@@ -45,6 +45,11 @@ static inline void pci_add_flags(int flags)
         pci_flags |= flags;
 }
 
+static inline void pci_clear_flags(int flags)
+{
+        pci_flags &= ~flags;
+}
+
 static inline int pci_has_flag(int flag)
 {
         return pci_flags & flag;
@@ -52,6 +57,7 @@ static inline int pci_has_flag(int flag)
 #else
 static inline void pci_set_flags(int flags) { }
 static inline void pci_add_flags(int flags) { }
+static inline void pci_clear_flags(int flags) { }
 static inline int pci_has_flag(int flag)
 {
         return 0;
diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h
index 26373cff4546..e80a0495e5b0 100644
--- a/include/asm-generic/pci.h
+++ b/include/asm-generic/pci.h
@@ -6,30 +6,6 @@
 #ifndef _ASM_GENERIC_PCI_H
 #define _ASM_GENERIC_PCI_H
 
-/**
- * pcibios_resource_to_bus - convert resource to PCI bus address
- * @dev: device which owns this resource
- * @region: converted bus-centric region (start,end)
- * @res: resource to convert
- *
- * Convert a resource to a PCI device bus address or bus window.
- */
-static inline void
-pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
-                         struct resource *res)
-{
-        region->start = res->start;
-        region->end = res->end;
-}
-
-static inline void
-pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
-                        struct pci_bus_region *region)
-{
-        res->start = region->start;
-        res->end = region->end;
-}
-
 static inline struct resource *
 pcibios_select_root(struct pci_dev *pdev, struct resource *res)
 {
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 9d57a71775b5..e885ba23de70 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -23,12 +23,6 @@ struct resource {
         struct resource *parent, *sibling, *child;
 };
 
-struct resource_list {
-        struct resource_list *next;
-        struct resource *res;
-        struct pci_dev *dev;
-};
-
 /*
  * IO resources have these defined flags.
  */
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 900da5db60ee..e444f5b49118 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -299,7 +299,6 @@ struct pci_dev {
          */
         unsigned int    irq;
         struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */
-        resource_size_t fw_addr[DEVICE_COUNT_RESOURCE]; /* FW-assigned addr */
 
         /* These fields are used by common fixups */
         unsigned int    transparent:1;  /* Transparent PCI bridge */
@@ -369,24 +368,17 @@ static inline int pci_channel_offline(struct pci_dev *pdev)
         return (pdev->error_state != pci_channel_io_normal);
 }
 
-static inline struct pci_cap_saved_state *pci_find_saved_cap(
-        struct pci_dev *pci_dev, char cap)
-{
-        struct pci_cap_saved_state *tmp;
-        struct hlist_node *pos;
-
-        hlist_for_each_entry(tmp, pos, &pci_dev->saved_cap_space, next) {
-                if (tmp->cap.cap_nr == cap)
-                        return tmp;
-        }
-        return NULL;
-}
+struct pci_host_bridge_window {
+        struct list_head list;
+        struct resource *res;           /* host bridge aperture (CPU address) */
+        resource_size_t offset;         /* bus address + offset = CPU address */
+};
 
-static inline void pci_add_saved_cap(struct pci_dev *pci_dev,
-        struct pci_cap_saved_state *new_cap)
-{
-        hlist_add_head(&new_cap->next, &pci_dev->saved_cap_space);
-}
+struct pci_host_bridge {
+        struct list_head list;
+        struct pci_bus *bus;            /* root bus */
+        struct list_head windows;       /* pci_host_bridge_windows */
+};
 
 /*
  * The first PCI_BRIDGE_RESOURCE_NUM PCI bus resources (those that correspond
@@ -656,6 +648,10 @@ void pci_fixup_cardbus(struct pci_bus *);
 
 /* Generic PCI functions used internally */
 
+void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
+                             struct resource *res);
+void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
+                             struct pci_bus_region *region);
 void pcibios_scan_specific_bus(int busn);
 extern struct pci_bus *pci_find_bus(int domain, int busnr);
 void pci_bus_add_devices(const struct pci_bus *bus);
@@ -690,7 +686,8 @@ u8 pci_common_swizzle(struct pci_dev *dev, u8 *pinp);
 extern struct pci_dev *pci_dev_get(struct pci_dev *dev);
 extern void pci_dev_put(struct pci_dev *dev);
 extern void pci_remove_bus(struct pci_bus *b);
-extern void pci_remove_bus_device(struct pci_dev *dev);
+extern void __pci_remove_bus_device(struct pci_dev *dev);
+extern void pci_stop_and_remove_bus_device(struct pci_dev *dev);
 extern void pci_stop_bus_device(struct pci_dev *dev);
 void pci_setup_cardbus(struct pci_bus *bus);
 extern void pci_sort_breadthfirst(void);
@@ -883,6 +880,7 @@ void set_pcie_hotplug_bridge(struct pci_dev *pdev);
 /* Functions for PCI Hotplug drivers to use */
 int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap);
 #ifdef CONFIG_HOTPLUG
+unsigned int pci_rescan_bus_bridge_resize(struct pci_dev *bridge);
 unsigned int pci_rescan_bus(struct pci_bus *bus);
 #endif
 
@@ -892,13 +890,13 @@ ssize_t pci_write_vpd(struct pci_dev *dev, loff_t pos, size_t count, const void
 int pci_vpd_truncate(struct pci_dev *dev, size_t size);
 
 /* Helper functions for low-level code (drivers/pci/setup-[bus,res].c) */
+resource_size_t pcibios_retrieve_fw_addr(struct pci_dev *dev, int idx);
 void pci_bus_assign_resources(const struct pci_bus *bus);
 void pci_bus_size_bridges(struct pci_bus *bus);
 int pci_claim_resource(struct pci_dev *, int);
 void pci_assign_unassigned_resources(void);
 void pci_assign_unassigned_bridge_resources(struct pci_dev *bridge);
 void pdev_enable_device(struct pci_dev *);
-void pdev_sort_resources(struct pci_dev *, struct resource_list *);
 int pci_enable_resources(struct pci_dev *, int mask);
 void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *),
                     int (*)(const struct pci_dev *, u8, u8));
@@ -915,6 +913,8 @@ void pci_release_selected_regions(struct pci_dev *, int);
 
 /* drivers/pci/bus.c */
 void pci_add_resource(struct list_head *resources, struct resource *res);
+void pci_add_resource_offset(struct list_head *resources, struct resource *res,
+                             resource_size_t offset);
 void pci_free_resource_list(struct list_head *resources);
 void pci_bus_add_resource(struct pci_bus *bus, struct resource *res, unsigned int flags);
 struct resource *pci_bus_resource_n(const struct pci_bus *bus, int n);
@@ -960,7 +960,7 @@ void pci_unregister_driver(struct pci_driver *dev);
         module_driver(__pci_driver, pci_register_driver, \
                        pci_unregister_driver)
 
-void pci_remove_behind_bridge(struct pci_dev *dev);
+void pci_stop_and_remove_behind_bridge(struct pci_dev *dev);
 struct pci_driver *pci_dev_driver(const struct pci_dev *dev);
 int pci_add_dynid(struct pci_driver *drv,
                   unsigned int vendor, unsigned int device,
@@ -1396,7 +1396,10 @@ static inline void pci_resource_to_user(const struct pci_dev *dev, int bar,
  */
 
 struct pci_fixup {
-        u16 vendor, device;     /* You can use PCI_ANY_ID here of course */
+        u16 vendor;             /* You can use PCI_ANY_ID here of course */
+        u16 device;             /* You can use PCI_ANY_ID here of course */
+        u32 class;              /* You can use PCI_ANY_ID here too */
+        unsigned int class_shift;       /* should be 0, 8, 16 */
         void (*hook)(struct pci_dev *dev);
 };
 
@@ -1411,30 +1414,68 @@ enum pci_fixup_pass {
 };
 
 /* Anonymous variables would be nice... */
-#define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook)  \
-        static const struct pci_fixup __pci_fixup_##name __used         \
-        __attribute__((__section__(#section))) = { vendor, device, hook };
+#define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, class, \
+                                  class_shift, hook)                    \
+        static const struct pci_fixup const __pci_fixup_##name __used   \
+        __attribute__((__section__(#section), aligned((sizeof(void *)))))    \
+                = { vendor, device, class, class_shift, hook };
+
+#define DECLARE_PCI_FIXUP_CLASS_EARLY(vendor, device, class,            \
+                                         class_shift, hook)             \
+        DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early,                     \
+                vendor##device##hook, vendor, device, class, class_shift, hook)
+#define DECLARE_PCI_FIXUP_CLASS_HEADER(vendor, device, class,           \
+                                         class_shift, hook)             \
+        DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header,                    \
+                vendor##device##hook, vendor, device, class, class_shift, hook)
+#define DECLARE_PCI_FIXUP_CLASS_FINAL(vendor, device, class,            \
+                                         class_shift, hook)             \
+        DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final,                     \
+                vendor##device##hook, vendor, device, class, class_shift, hook)
+#define DECLARE_PCI_FIXUP_CLASS_ENABLE(vendor, device, class,           \
+                                         class_shift, hook)             \
+        DECLARE_PCI_FIXUP_SECTION(.pci_fixup_enable,                    \
+                vendor##device##hook, vendor, device, class, class_shift, hook)
+#define DECLARE_PCI_FIXUP_CLASS_RESUME(vendor, device, class,           \
+                                         class_shift, hook)             \
+        DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume,                    \
+                resume##vendor##device##hook, vendor, device, class,    \
+                class_shift, hook)
+#define DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(vendor, device, class,     \
+                                         class_shift, hook)             \
+        DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume_early,              \
+                resume_early##vendor##device##hook, vendor, device,     \
+                class, class_shift, hook)
+#define DECLARE_PCI_FIXUP_CLASS_SUSPEND(vendor, device, class,          \
+                                         class_shift, hook)             \
+        DECLARE_PCI_FIXUP_SECTION(.pci_fixup_suspend,                   \
+                suspend##vendor##device##hook, vendor, device, class,   \
+                class_shift, hook)
+
 #define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook)                   \
         DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early,                     \
-                        vendor##device##hook, vendor, device, hook)
+                vendor##device##hook, vendor, device, PCI_ANY_ID, 0, hook)
 #define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook)                  \
         DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header,                    \
-                        vendor##device##hook, vendor, device, hook)
+                vendor##device##hook, vendor, device, PCI_ANY_ID, 0, hook)
 #define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook)                   \
         DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final,                     \
-                        vendor##device##hook, vendor, device, hook)
+                vendor##device##hook, vendor, device, PCI_ANY_ID, 0, hook)
 #define DECLARE_PCI_FIXUP_ENABLE(vendor, device, hook)                  \
         DECLARE_PCI_FIXUP_SECTION(.pci_fixup_enable,                    \
-                        vendor##device##hook, vendor, device, hook)
+                vendor##device##hook, vendor, device, PCI_ANY_ID, 0, hook)
 #define DECLARE_PCI_FIXUP_RESUME(vendor, device, hook)                  \
         DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume,                    \
-                        resume##vendor##device##hook, vendor, device, hook)
+                resume##vendor##device##hook, vendor, device,           \
+                PCI_ANY_ID, 0, hook)
 #define DECLARE_PCI_FIXUP_RESUME_EARLY(vendor, device, hook)            \
         DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume_early,              \
-                        resume_early##vendor##device##hook, vendor, device, hook)
+                resume_early##vendor##device##hook, vendor, device,     \
+                PCI_ANY_ID, 0, hook)
 #define DECLARE_PCI_FIXUP_SUSPEND(vendor, device, hook)                 \
         DECLARE_PCI_FIXUP_SECTION(.pci_fixup_suspend,                   \
-                        suspend##vendor##device##hook, vendor, device, hook)
+                suspend##vendor##device##hook, vendor, device,          \
+                PCI_ANY_ID, 0, hook)
 
 #ifdef CONFIG_PCI_QUIRKS
 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev);
diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h
index e41a10f5ae83..4b608f543412 100644
--- a/include/linux/pci_regs.h
+++ b/include/linux/pci_regs.h
@@ -391,6 +391,7 @@
 #define  PCI_EXP_TYPE_UPSTREAM  0x5     /* Upstream Port */
 #define  PCI_EXP_TYPE_DOWNSTREAM 0x6    /* Downstream Port */
 #define  PCI_EXP_TYPE_PCI_BRIDGE 0x7    /* PCI/PCI-X Bridge */
+#define  PCI_EXP_TYPE_PCIE_BRIDGE 0x8   /* PCI/PCI-X to PCIE Bridge */
 #define  PCI_EXP_TYPE_RC_END    0x9     /* Root Complex Integrated Endpoint */
 #define  PCI_EXP_TYPE_RC_EC     0xa     /* Root Complex Event Collector */
 #define PCI_EXP_FLAGS_SLOT      0x0100  /* Slot implemented */