4 files changed, 20 insertions, 14 deletions

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 95a32746fbf9..21c6746338af 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -769,6 +769,8 @@ void __init setup_arch(char **cmdline_p)
 
         x86_init.oem.arch_setup();
 
+        resource_alloc_from_bottom = 0;
+        iomem_resource.end = (1ULL << boot_cpu_data.x86_phys_bits) - 1;
         setup_memory_map();
         parse_setup_data();
         /* update the e820_saved too */
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 55253095be84..826140af3c3c 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -65,16 +65,21 @@ pcibios_align_resource(void *data, const struct resource *res,
                         resource_size_t size, resource_size_t align)
 {
         struct pci_dev *dev = data;
-        resource_size_t start = res->start;
+        resource_size_t start = round_down(res->end - size + 1, align);
 
         if (res->flags & IORESOURCE_IO) {
-                if (skip_isa_ioresource_align(dev))
-                        return start;
-                if (start & 0x300)
-                        start = (start + 0x3ff) & ~0x3ff;
+
+                /*
+                 * If we're avoiding ISA aliases, the largest contiguous I/O
+                 * port space is 256 bytes.  Clearing bits 9 and 10 preserves
+                 * all 256-byte and smaller alignments, so the result will
+                 * still be correctly aligned.
+                 */
+                if (!skip_isa_ioresource_align(dev))
+                        start &= ~0x300;
         } else if (res->flags & IORESOURCE_MEM) {
                 if (start < BIOS_END)
-                        start = BIOS_END;
+                        start = res->end;       /* fail; no space */
         }
         return start;
 }
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index f547ee05f715..9f9bfb705cf9 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -584,27 +584,28 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route
         case PCI_DEVICE_ID_INTEL_ICH9_3:
         case PCI_DEVICE_ID_INTEL_ICH9_4:
         case PCI_DEVICE_ID_INTEL_ICH9_5:
-        case PCI_DEVICE_ID_INTEL_TOLAPAI_0:
+        case PCI_DEVICE_ID_INTEL_EP80579_0:
         case PCI_DEVICE_ID_INTEL_ICH10_0:
         case PCI_DEVICE_ID_INTEL_ICH10_1:
         case PCI_DEVICE_ID_INTEL_ICH10_2:
         case PCI_DEVICE_ID_INTEL_ICH10_3:
+        case PCI_DEVICE_ID_INTEL_PATSBURG_LPC:
                 r->name = "PIIX/ICH";
                 r->get = pirq_piix_get;
                 r->set = pirq_piix_set;
                 return 1;
         }
 
-        if ((device >= PCI_DEVICE_ID_INTEL_PCH_LPC_MIN) && 
-                (device <= PCI_DEVICE_ID_INTEL_PCH_LPC_MAX)) {
+        if ((device >= PCI_DEVICE_ID_INTEL_5_3400_SERIES_LPC_MIN) && 
+                (device <= PCI_DEVICE_ID_INTEL_5_3400_SERIES_LPC_MAX)) {
                 r->name = "PIIX/ICH";
                 r->get = pirq_piix_get;
                 r->set = pirq_piix_set;
                 return 1;
         }
 
-        if ((device >= PCI_DEVICE_ID_INTEL_CPT_LPC_MIN) && 
-                (device <= PCI_DEVICE_ID_INTEL_CPT_LPC_MAX)) {
+        if ((device >= PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_MIN) && 
+                (device <= PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_MAX)) {
                 r->name = "PIIX/ICH";
                 r->get = pirq_piix_get;
                 r->set = pirq_piix_set;
diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index a918553ebc75..e282886616a0 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -65,7 +65,6 @@ static __init struct pci_mmcfg_region *pci_mmconfig_add(int segment, int start,
                                                         int end, u64 addr)
 {
         struct pci_mmcfg_region *new;
-        int num_buses;
         struct resource *res;
 
         if (addr == 0)
@@ -82,10 +81,9 @@ static __init struct pci_mmcfg_region *pci_mmconfig_add(int segment, int start,
 
         list_add_sorted(new);
 
-        num_buses = end - start + 1;
         res = &new->res;
         res->start = addr + PCI_MMCFG_BUS_OFFSET(start);
-        res->end = addr + PCI_MMCFG_BUS_OFFSET(num_buses) - 1;
+        res->end = addr + PCI_MMCFG_BUS_OFFSET(end + 1) - 1;
         res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
         snprintf(new->name, PCI_MMCFG_RESOURCE_NAME_LEN,
                  "PCI MMCONFIG %04x [bus %02x-%02x]", segment, start, end);