diff options
| -rw-r--r-- | arch/x86/pci/acpi.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index 68b89dc7d76..54db5a04b5e 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -92,11 +92,12 @@ setup_resource(struct acpi_resource *acpi_res, void *data) start = addr.minimum + addr.translation_offset; end = start + addr.address_length - 1; if (info->res_num >= max_root_bus_resources) { - printk(KERN_WARNING "PCI: Failed to allocate 0x%lx-0x%lx " - "from %s for %s due to _CRS returning more than " - "%d resource descriptors\n", (unsigned long) start, - (unsigned long) end, root->name, info->name, - max_root_bus_resources); + if (pci_probe & PCI_USE__CRS) + printk(KERN_WARNING "PCI: Failed to allocate " + "0x%lx-0x%lx from %s for %s due to _CRS " + "returning more than %d resource descriptors\n", + (unsigned long) start, (unsigned long) end, + root->name, info->name, max_root_bus_resources); return AE_OK; } @@ -107,6 +108,12 @@ setup_resource(struct acpi_resource *acpi_res, void *data) res->end = end; res->child = NULL; + if (!(pci_probe & PCI_USE__CRS)) { + dev_printk(KERN_DEBUG, &info->bridge->dev, + "host bridge window %pR (ignored)\n", res); + return AE_OK; + } + if (insert_resource(root, res)) { dev_err(&info->bridge->dev, "can't allocate host bridge window %pR\n", res); @@ -132,6 +139,11 @@ get_current_resources(struct acpi_device *device, int busnum, struct pci_root_info info; size_t size; + if (!(pci_probe & PCI_USE__CRS)) + dev_info(&device->dev, + "ignoring host bridge windows from ACPI; " + "boot with \"pci=use_crs\" to use them\n"); + info.bridge = device; info.bus = bus; info.res_num = 0; @@ -220,9 +232,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do } else { bus = pci_create_bus(NULL, busnum, &pci_root_ops, sd); if (bus) { - if (pci_probe & PCI_USE__CRS) - get_current_resources(device, busnum, domain, - bus); + get_current_resources(device, busnum, domain, bus); bus->subordinate = pci_scan_child_bus(bus); } } |