[PATCH] x86-64: Use ACPI PXM to parse PCI<->node assignments

[pandora-kernel.git] / arch / i386 / pci / acpi.c

diff --git a/arch/i386/pci/acpi.c b/arch/i386/pci/acpi.c
index 42913f4..2941674 100644 (file)
--- a/arch/i386/pci/acpi.c
+++ b/arch/i386/pci/acpi.c
@@ -3,16 +3,31 @@
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <asm/hw_irq.h>
+#include <asm/numa.h>
 #include "pci.h"
 
 struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int domain, int busnum)
 {
+       struct pci_bus *bus;
+
        if (domain != 0) {
                printk(KERN_WARNING "PCI: Multiple domains not supported\n");
                return NULL;
        }
 
-       return pcibios_scan_root(busnum);
+       bus = pcibios_scan_root(busnum);
+#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));
+               }
+       }
+#endif
+       
+       return bus;
 }
 
 extern int pci_routeirq;