[PATCH] MMCONFIG and new Intel motherboards

[pandora-kernel.git] / arch / x86_64 / pci / mmconfig.c

diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c
index 8bea510..8c0722b 100644 (file)
--- a/arch/x86_64/pci/mmconfig.c
+++ b/arch/x86_64/pci/mmconfig.c
@@ -163,6 +163,37 @@ static __init void unreachable_devices(void)
        }
 }
 
+static __init void pci_mmcfg_insert_resources(void)
+{
+#define PCI_MMCFG_RESOURCE_NAME_LEN 19
+       int i;
+       struct resource *res;
+       char *names;
+       unsigned num_buses;
+
+       res = kcalloc(PCI_MMCFG_RESOURCE_NAME_LEN + sizeof(*res),
+                       pci_mmcfg_config_num, GFP_KERNEL);
+
+       if (!res) {
+               printk(KERN_ERR "PCI: Unable to allocate MMCONFIG resources\n");
+               return;
+       }
+
+       names = (void *)&res[pci_mmcfg_config_num];
+       for (i = 0; i < pci_mmcfg_config_num; i++, res++) {
+               num_buses = pci_mmcfg_config[i].end_bus_number -
+                   pci_mmcfg_config[i].start_bus_number + 1;
+               res->name = names;
+               snprintf(names, PCI_MMCFG_RESOURCE_NAME_LEN, "PCI MMCONFIG %u",
+                       pci_mmcfg_config[i].pci_segment_group_number);
+               res->start = pci_mmcfg_config[i].base_address;
+               res->end = res->start + (num_buses << 20) - 1;
+               res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+               insert_resource(&iomem_resource, res);
+               names += PCI_MMCFG_RESOURCE_NAME_LEN;
+       }
+}
+
 void __init pci_mmcfg_init(int type)
 {
        int i;
@@ -206,6 +237,7 @@ void __init pci_mmcfg_init(int type)
        }
 
        unreachable_devices();
+       pci_mmcfg_insert_resources();
 
        raw_pci_ops = &pci_mmcfg;
        pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;