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-rw-r--r--arch/ia64/hp/common/sba_iommu.c34
1 files changed, 4 insertions, 30 deletions
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 6a8fcba..b8db6e3 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -1944,43 +1944,17 @@ sba_connect_bus(struct pci_bus *bus)
static void __init
sba_map_ioc_to_node(struct ioc *ioc, acpi_handle handle)
{
- struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
- union acpi_object *obj;
- acpi_handle phandle;
unsigned int node;
+ int pxm;
ioc->node = MAX_NUMNODES;
- /*
- * Check for a _PXM on this node first. We don't typically see
- * one here, so we'll end up getting it from the parent.
- */
- if (ACPI_FAILURE(acpi_evaluate_object(handle, "_PXM", NULL, &buffer))) {
- if (ACPI_FAILURE(acpi_get_parent(handle, &phandle)))
- return;
-
- /* Reset the acpi buffer */
- buffer.length = ACPI_ALLOCATE_BUFFER;
- buffer.pointer = NULL;
-
- if (ACPI_FAILURE(acpi_evaluate_object(phandle, "_PXM", NULL,
- &buffer)))
- return;
- }
+ pxm = acpi_get_pxm(handle);
- if (!buffer.length || !buffer.pointer)
+ if (pxm < 0)
return;
- obj = buffer.pointer;
-
- if (obj->type != ACPI_TYPE_INTEGER ||
- obj->integer.value >= MAX_PXM_DOMAINS) {
- acpi_os_free(buffer.pointer);
- return;
- }
-
- node = pxm_to_nid_map[obj->integer.value];
- acpi_os_free(buffer.pointer);
+ node = pxm_to_nid_map[pxm];
if (node >= MAX_NUMNODES || !node_online(node))
return;
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