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authorChristoph Lameter <clameter@sgi.com>2005-07-07 16:59:00 -0700
committerTony Luck <tony.luck@intel.com>2005-07-12 11:04:22 -0700
commit514604c6d1779c55d3e97dc4e9a71c117c1ccbcd (patch)
tree19241b4db64f1da60c0dd594606c5d5fba8b254f /arch
parent1604d9c8f8dffafe3a077dc5ae7c935d2318bcf6 (diff)
downloadlinux-linaro-514604c6d1779c55d3e97dc4e9a71c117c1ccbcd.tar.gz
[IA64] pcibus_to_node implementation for IA64
pcibus_to_node provides a way for the Linux kernel to identify to which node a certain pcibus connects to. Allocations of control structures for devices can then be made on the node where the pci bus is located to allow local access during interrupt and other device manipulation. This patch provides a new "node" field in the the pci_controller structure. The node field will be set based on ACPI information (thanks to Alex Williamson <alex.williamson@hp.com for that piece). Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/pci/pci.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 720a861f88b..54d9ed444e4 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -157,6 +157,7 @@ alloc_pci_controller (int seg)
memset(controller, 0, sizeof(*controller));
controller->segment = seg;
+ controller->node = -1;
return controller;
}
@@ -288,6 +289,7 @@ pci_acpi_scan_root(struct acpi_device *device, int domain, int bus)
unsigned int windows = 0;
struct pci_bus *pbus;
char *name;
+ int pxm;
controller = alloc_pci_controller(domain);
if (!controller)
@@ -295,10 +297,16 @@ pci_acpi_scan_root(struct acpi_device *device, int domain, int bus)
controller->acpi_handle = device->handle;
+ pxm = acpi_get_pxm(controller->acpi_handle);
+#ifdef CONFIG_NUMA
+ if (pxm >= 0)
+ controller->node = pxm_to_nid_map[pxm];
+#endif
+
acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window,
&windows);
- controller->window = kmalloc(sizeof(*controller->window) * windows,
- GFP_KERNEL);
+ controller->window = kmalloc_node(sizeof(*controller->window) * windows,
+ GFP_KERNEL, controller->node);
if (!controller->window)
goto out2;