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authorTejun Heo <tj@kernel.org>2009-08-14 01:41:02 -0400
committerTejun Heo <tj@kernel.org>2009-08-14 01:45:31 -0400
commit384be2b18a5f9475eab9ca2bdfa95cc1a04ef59c (patch)
tree04c93f391a1b65c8bf8d7ba8643c07d26c26590a /arch/x86/pci/acpi.c
parenta76761b621bcd8336065c4fe3a74f046858bc34c (diff)
parent142d44b0dd6741a64a7bdbe029110e7c1dcf1d23 (diff)
Merge branch 'percpu-for-linus' into percpu-for-next
Conflicts: arch/sparc/kernel/smp_64.c arch/x86/kernel/cpu/perf_counter.c arch/x86/kernel/setup_percpu.c drivers/cpufreq/cpufreq_ondemand.c mm/percpu.c Conflicts in core and arch percpu codes are mostly from commit ed78e1e078dd44249f88b1dd8c76dafb39567161 which substituted many num_possible_cpus() with nr_cpu_ids. As for-next branch has moved all the first chunk allocators into mm/percpu.c, the changes are moved from arch code to mm/percpu.c. Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/x86/pci/acpi.c')
-rw-r--r--arch/x86/pci/acpi.c59
1 files changed, 24 insertions, 35 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index b26626dc517c..1014eb4bfc37 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -68,6 +68,10 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
68 unsigned long flags; 68 unsigned long flags;
69 struct resource *root; 69 struct resource *root;
70 int max_root_bus_resources = PCI_BUS_NUM_RESOURCES; 70 int max_root_bus_resources = PCI_BUS_NUM_RESOURCES;
71 u64 start, end;
72
73 if (bus_has_transparent_bridge(info->bus))
74 max_root_bus_resources -= 3;
71 75
72 status = resource_to_addr(acpi_res, &addr); 76 status = resource_to_addr(acpi_res, &addr);
73 if (!ACPI_SUCCESS(status)) 77 if (!ACPI_SUCCESS(status))
@@ -84,25 +88,24 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
84 } else 88 } else
85 return AE_OK; 89 return AE_OK;
86 90
87 res = &info->res[info->res_num]; 91 start = addr.minimum + addr.translation_offset;
88 res->name = info->name; 92 end = start + addr.address_length - 1;
89 res->flags = flags;
90 res->start = addr.minimum + addr.translation_offset;
91 res->end = res->start + addr.address_length - 1;
92 res->child = NULL;
93
94 if (bus_has_transparent_bridge(info->bus))
95 max_root_bus_resources -= 3;
96 if (info->res_num >= max_root_bus_resources) { 93 if (info->res_num >= max_root_bus_resources) {
97 printk(KERN_WARNING "PCI: Failed to allocate 0x%lx-0x%lx " 94 printk(KERN_WARNING "PCI: Failed to allocate 0x%lx-0x%lx "
98 "from %s for %s due to _CRS returning more than " 95 "from %s for %s due to _CRS returning more than "
99 "%d resource descriptors\n", (unsigned long) res->start, 96 "%d resource descriptors\n", (unsigned long) start,
100 (unsigned long) res->end, root->name, info->name, 97 (unsigned long) end, root->name, info->name,
101 max_root_bus_resources); 98 max_root_bus_resources);
102 info->res_num++;
103 return AE_OK; 99 return AE_OK;
104 } 100 }
105 101
102 res = &info->res[info->res_num];
103 res->name = info->name;
104 res->flags = flags;
105 res->start = start;
106 res->end = end;
107 res->child = NULL;
108
106 if (insert_resource(root, res)) { 109 if (insert_resource(root, res)) {
107 printk(KERN_ERR "PCI: Failed to allocate 0x%lx-0x%lx " 110 printk(KERN_ERR "PCI: Failed to allocate 0x%lx-0x%lx "
108 "from %s for %s\n", (unsigned long) res->start, 111 "from %s for %s\n", (unsigned long) res->start,
@@ -115,23 +118,6 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
115} 118}
116 119
117static void 120static void
118adjust_transparent_bridge_resources(struct pci_bus *bus)
119{
120 struct pci_dev *dev;
121
122 list_for_each_entry(dev, &bus->devices, bus_list) {
123 int i;
124 u16 class = dev->class >> 8;
125
126 if (class == PCI_CLASS_BRIDGE_PCI && dev->transparent) {
127 for(i = 3; i < PCI_BUS_NUM_RESOURCES; i++)
128 dev->subordinate->resource[i] =
129 dev->bus->resource[i - 3];
130 }
131 }
132}
133
134static void
135get_current_resources(struct acpi_device *device, int busnum, 121get_current_resources(struct acpi_device *device, int busnum,
136 int domain, struct pci_bus *bus) 122 int domain, struct pci_bus *bus)
137{ 123{
@@ -158,8 +144,6 @@ get_current_resources(struct acpi_device *device, int busnum,
158 info.res_num = 0; 144 info.res_num = 0;
159 acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource, 145 acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource,
160 &info); 146 &info);
161 if (info.res_num)
162 adjust_transparent_bridge_resources(bus);
163 147
164 return; 148 return;
165 149
@@ -222,8 +206,15 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
222 */ 206 */
223 memcpy(bus->sysdata, sd, sizeof(*sd)); 207 memcpy(bus->sysdata, sd, sizeof(*sd));
224 kfree(sd); 208 kfree(sd);
225 } else 209 } else {
226 bus = pci_scan_bus_parented(NULL, busnum, &pci_root_ops, sd); 210 bus = pci_create_bus(NULL, busnum, &pci_root_ops, sd);
211 if (bus) {
212 if (pci_probe & PCI_USE__CRS)
213 get_current_resources(device, busnum, domain,
214 bus);
215 bus->subordinate = pci_scan_child_bus(bus);
216 }
217 }
227 218
228 if (!bus) 219 if (!bus)
229 kfree(sd); 220 kfree(sd);
@@ -238,8 +229,6 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
238#endif 229#endif
239 } 230 }
240 231
241 if (bus && (pci_probe & PCI_USE__CRS))
242 get_current_resources(device, busnum, domain, bus);
243 return bus; 232 return bus;
244} 233}
245 234