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authorYasunori Goto <y-goto@jp.fujitsu.com>2006-06-23 13:03:19 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 18:42:48 +0400
commit762834e8bf46bf41ce9034d062a7c1f8563175f3 (patch)
treefb134ef41772ba61050a08cc4ed92c50cd057658 /drivers
parentd6277db4ab271862ed599da08d78961c70f00002 (diff)
downloadlinux-762834e8bf46bf41ce9034d062a7c1f8563175f3.tar.xz
[PATCH] Unify pxm_to_node() and node_to_pxm()
Consolidate the various arch-specific implementations of pxm_to_node() and node_to_pxm() into a single generic version. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Andi Kleen <ak@muc.de> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: "Brown, Len" <len.brown@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/acpi/Kconfig2
-rw-r--r--drivers/acpi/numa.c48
2 files changed, 49 insertions, 1 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index c24652d31bf9..230c53852231 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -162,7 +162,7 @@ config ACPI_THERMAL
config ACPI_NUMA
bool "NUMA support"
depends on NUMA
- depends on (IA64 || X86_64)
+ depends on (X86 || IA64)
default y if IA64_GENERIC || IA64_SGI_SN2
config ACPI_ASUS
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 64b98e82feb7..e2c1a16078c9 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -36,12 +36,60 @@
#define _COMPONENT ACPI_NUMA
ACPI_MODULE_NAME("numa")
+static nodemask_t nodes_found_map = NODE_MASK_NONE;
+#define PXM_INVAL -1
+#define NID_INVAL -1
+
+/* maps to convert between proximity domain and logical node ID */
+int __cpuinitdata pxm_to_node_map[MAX_PXM_DOMAINS]
+ = { [0 ... MAX_PXM_DOMAINS - 1] = NID_INVAL };
+int __cpuinitdata node_to_pxm_map[MAX_NUMNODES]
+ = { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
+
extern int __init acpi_table_parse_madt_family(enum acpi_table_id id,
unsigned long madt_size,
int entry_id,
acpi_madt_entry_handler handler,
unsigned int max_entries);
+int __cpuinit pxm_to_node(int pxm)
+{
+ if (pxm < 0)
+ return NID_INVAL;
+ return pxm_to_node_map[pxm];
+}
+
+int __cpuinit node_to_pxm(int node)
+{
+ if (node < 0)
+ return PXM_INVAL;
+ return node_to_pxm_map[node];
+}
+
+int __cpuinit acpi_map_pxm_to_node(int pxm)
+{
+ int node = pxm_to_node_map[pxm];
+
+ if (node < 0){
+ if (nodes_weight(nodes_found_map) >= MAX_NUMNODES)
+ return NID_INVAL;
+ node = first_unset_node(nodes_found_map);
+ pxm_to_node_map[pxm] = node;
+ node_to_pxm_map[node] = pxm;
+ node_set(node, nodes_found_map);
+ }
+
+ return node;
+}
+
+void __cpuinit acpi_unmap_pxm_to_node(int node)
+{
+ int pxm = node_to_pxm_map[node];
+ pxm_to_node_map[pxm] = NID_INVAL;
+ node_to_pxm_map[node] = PXM_INVAL;
+ node_clear(node, nodes_found_map);
+}
+
void __init acpi_table_print_srat_entry(acpi_table_entry_header * header)
{