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Merge branch 'pci/mike-x86-tra' into next

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* pci/mike-x86-tra:
  x86/PCI: Allow x86 platforms to use translation offsets
This commit is contained in:
Bjorn Helgaas 2012-11-09 10:00:10 -07:00
commit 0dcccc5c53
1 changed files with 18 additions and 3 deletions
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21
arch/x86/pci/acpi.c
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@ -12,6 +12,7 @@ struct pci_root_info {
char name[16];
unsigned int res_num;
struct resource *res;
resource_size_t *res_offset;
struct pci_sysdata sd;
#ifdef CONFIG_PCI_MMCONFIG
bool mcfg_added;
@ -323,6 +324,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
res->flags = flags;
res->start = start;
res->end = end;
info->res_offset[info->res_num] = addr.translation_offset;
if (!pci_use_crs) {
dev_printk(KERN_DEBUG, &info->bridge->dev,
@ -392,7 +394,8 @@ static void add_resources(struct pci_root_info *info,
"ignoring host bridge window %pR (conflicts with %s %pR)\n",
res, conflict->name, conflict);
else
pci_add_resource(resources, res);
pci_add_resource_offset(resources, res,
info->res_offset[i]);
}
}
@ -400,6 +403,8 @@ static void free_pci_root_info_res(struct pci_root_info *info)
{
kfree(info->res);
info->res = NULL;
kfree(info->res_offset);
info->res_offset = NULL;
info->res_num = 0;
}
@ -450,10 +455,20 @@ probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device,
return;
size = sizeof(*info->res) * info->res_num;
info->res_num = 0;
info->res = kzalloc(size, GFP_KERNEL);
if (!info->res)
if (!info->res) {
info->res_num = 0;
return;
}
size = sizeof(*info->res_offset) * info->res_num;
info->res_num = 0;
info->res_offset = kzalloc(size, GFP_KERNEL);
if (!info->res_offset) {
kfree(info->res);
info->res = NULL;
return;
}
acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource,
info);