x86-64: introduce struct pci_sysdata to facilitate sharing of ->sysdata

[linux-2.6-omap-h63xx.git] / arch / i386 / pci / acpi.c

diff --git a/arch/i386/pci/acpi.c b/arch/i386/pci/acpi.c
index b33aea845f5847ffcdf6fafe10f6c0659e9b7959..bc8a44bddaa7b7f8ab83638fbfa38231d631349b 100644 (file)
--- a/arch/i386/pci/acpi.c
+++ b/arch/i386/pci/acpi.c
@@ -8,20 +8,42 @@
 struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int domain, int busnum)
 {
        struct pci_bus *bus;
+       struct pci_sysdata *sd;
+       int pxm;
+
+       /* Allocate per-root-bus (not per bus) arch-specific data.
+        * TODO: leak; this memory is never freed.
+        * It's arguable whether it's worth the trouble to care.
+        */
+       sd = kzalloc(sizeof(*sd), GFP_KERNEL);
+       if (!sd) {
+               printk(KERN_ERR "PCI: OOM, not probing PCI bus %02x\n", busnum);
+               return NULL;
+       }
 
        if (domain != 0) {
                printk(KERN_WARNING "PCI: Multiple domains not supported\n");
+               kfree(sd);
                return NULL;
        }
 
-       bus = pcibios_scan_root(busnum);
+       sd->node = -1;
+
+       pxm = acpi_get_pxm(device->handle);
+#ifdef CONFIG_ACPI_NUMA
+       if (pxm >= 0)
+               sd->node = pxm_to_node(pxm);
+#endif
+
+       bus = pci_scan_bus_parented(NULL, busnum, &pci_root_ops, sd);
+       if (!bus)
+               kfree(sd);
+
 #ifdef CONFIG_ACPI_NUMA
        if (bus != NULL) {
-               int pxm = acpi_get_pxm(device->handle);
                if (pxm >= 0) {
-                       bus->sysdata = (void *)(unsigned long)pxm_to_node(pxm);
-                       printk("bus %d -> pxm %d -> node %ld\n",
-                               busnum, pxm, (long)(bus->sysdata));
+                       printk("bus %d -> pxm %d -> node %d\n",
+                               busnum, pxm, sd->node);
                }
        }
 #endif