From 762834e8bf46bf41ce9034d062a7c1f8563175f3 Mon Sep 17 00:00:00 2001 From: Yasunori Goto Date: Fri, 23 Jun 2006 02:03:19 -0700 Subject: [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 Cc: "Luck, Tony" Cc: Andi Kleen Cc: Dave Hansen Cc: "Brown, Len" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/acpi/Kconfig | 2 +- drivers/acpi/numa.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 49 insertions(+), 1 deletion(-) (limited to 'drivers/acpi') 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) { -- cgit v1.2.3-58-ga151