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authorTejun Heo <tj@kernel.org>2009-07-03 18:13:18 -0400
committerTejun Heo <tj@kernel.org>2009-07-03 18:13:18 -0400
commitc43768cbb7655ea5ff782ae250f6e2ef4297cf98 (patch)
tree3982e41dde3eecaa3739a5d1a8ed18d04bd74f01 /arch/x86/pci/acpi.c
parent1a8dd307cc0a2119be4e578c517795464e6dabba (diff)
parent746a99a5af60ee676afa2ba469ccd1373493c7e7 (diff)
Merge branch 'master' into for-next
Pull linus#master to merge PER_CPU_DEF_ATTRIBUTES and alpha build fix changes. As alpha in percpu tree uses 'weak' attribute instead of inline assembly, there's no need for __used attribute. Conflicts: arch/alpha/include/asm/percpu.h arch/mn10300/kernel/vmlinux.lds.S include/linux/percpu-defs.h
Diffstat (limited to 'arch/x86/pci/acpi.c')
-rw-r--r--arch/x86/pci/acpi.c33
1 files changed, 27 insertions, 6 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index c0ecf250fe51..b26626dc517c 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -38,15 +38,26 @@ count_resource(struct acpi_resource *acpi_res, void *data)
38 struct acpi_resource_address64 addr; 38 struct acpi_resource_address64 addr;
39 acpi_status status; 39 acpi_status status;
40 40
41 if (info->res_num >= PCI_BUS_NUM_RESOURCES)
42 return AE_OK;
43
44 status = resource_to_addr(acpi_res, &addr); 41 status = resource_to_addr(acpi_res, &addr);
45 if (ACPI_SUCCESS(status)) 42 if (ACPI_SUCCESS(status))
46 info->res_num++; 43 info->res_num++;
47 return AE_OK; 44 return AE_OK;
48} 45}
49 46
47static int
48bus_has_transparent_bridge(struct pci_bus *bus)
49{
50 struct pci_dev *dev;
51
52 list_for_each_entry(dev, &bus->devices, bus_list) {
53 u16 class = dev->class >> 8;
54
55 if (class == PCI_CLASS_BRIDGE_PCI && dev->transparent)
56 return true;
57 }
58 return false;
59}
60
50static acpi_status 61static acpi_status
51setup_resource(struct acpi_resource *acpi_res, void *data) 62setup_resource(struct acpi_resource *acpi_res, void *data)
52{ 63{
@@ -56,9 +67,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
56 acpi_status status; 67 acpi_status status;
57 unsigned long flags; 68 unsigned long flags;
58 struct resource *root; 69 struct resource *root;
59 70 int max_root_bus_resources = PCI_BUS_NUM_RESOURCES;
60 if (info->res_num >= PCI_BUS_NUM_RESOURCES)
61 return AE_OK;
62 71
63 status = resource_to_addr(acpi_res, &addr); 72 status = resource_to_addr(acpi_res, &addr);
64 if (!ACPI_SUCCESS(status)) 73 if (!ACPI_SUCCESS(status))
@@ -82,6 +91,18 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
82 res->end = res->start + addr.address_length - 1; 91 res->end = res->start + addr.address_length - 1;
83 res->child = NULL; 92 res->child = NULL;
84 93
94 if (bus_has_transparent_bridge(info->bus))
95 max_root_bus_resources -= 3;
96 if (info->res_num >= max_root_bus_resources) {
97 printk(KERN_WARNING "PCI: Failed to allocate 0x%lx-0x%lx "
98 "from %s for %s due to _CRS returning more than "
99 "%d resource descriptors\n", (unsigned long) res->start,
100 (unsigned long) res->end, root->name, info->name,
101 max_root_bus_resources);
102 info->res_num++;
103 return AE_OK;
104 }
105
85 if (insert_resource(root, res)) { 106 if (insert_resource(root, res)) {
86 printk(KERN_ERR "PCI: Failed to allocate 0x%lx-0x%lx " 107 printk(KERN_ERR "PCI: Failed to allocate 0x%lx-0x%lx "
87 "from %s for %s\n", (unsigned long) res->start, 108 "from %s for %s\n", (unsigned long) res->start,