Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * acpi_numa.c - ACPI NUMA support |
| 3 | * |
| 4 | * Copyright (C) 2002 Takayoshi Kochi <t-kochi@bq.jp.nec.com> |
| 5 | * |
| 6 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | * |
| 22 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 23 | * |
| 24 | */ |
| 25 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include <linux/init.h> |
| 27 | #include <linux/kernel.h> |
| 28 | #include <linux/types.h> |
| 29 | #include <linux/errno.h> |
| 30 | #include <linux/acpi.h> |
David Rientjes | b552a8c | 2009-11-17 14:27:32 -0800 | [diff] [blame] | 31 | #include <linux/numa.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include <acpi/acpi_bus.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | |
Len Brown | a192a95 | 2009-07-28 16:45:54 -0400 | [diff] [blame] | 34 | #define PREFIX "ACPI: " |
| 35 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | #define ACPI_NUMA 0x80000000 |
| 37 | #define _COMPONENT ACPI_NUMA |
Len Brown | f52fd66 | 2007-02-12 22:42:12 -0500 | [diff] [blame] | 38 | ACPI_MODULE_NAME("numa"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | |
Yasunori Goto | 762834e | 2006-06-23 02:03:19 -0700 | [diff] [blame] | 40 | static nodemask_t nodes_found_map = NODE_MASK_NONE; |
Yasunori Goto | 762834e | 2006-06-23 02:03:19 -0700 | [diff] [blame] | 41 | |
| 42 | /* maps to convert between proximity domain and logical node ID */ |
Jan Beulich | ffada89 | 2007-12-13 08:32:26 +0000 | [diff] [blame] | 43 | static int pxm_to_node_map[MAX_PXM_DOMAINS] |
David Rientjes | b552a8c | 2009-11-17 14:27:32 -0800 | [diff] [blame] | 44 | = { [0 ... MAX_PXM_DOMAINS - 1] = NUMA_NO_NODE }; |
Jan Beulich | ffada89 | 2007-12-13 08:32:26 +0000 | [diff] [blame] | 45 | static int node_to_pxm_map[MAX_NUMNODES] |
David Rientjes | b552a8c | 2009-11-17 14:27:32 -0800 | [diff] [blame] | 46 | = { [0 ... MAX_NUMNODES - 1] = PXM_INVAL }; |
Yasunori Goto | 762834e | 2006-06-23 02:03:19 -0700 | [diff] [blame] | 47 | |
Aaron Durbin | f363d16 | 2007-05-16 22:11:06 -0700 | [diff] [blame] | 48 | int pxm_to_node(int pxm) |
Yasunori Goto | 762834e | 2006-06-23 02:03:19 -0700 | [diff] [blame] | 49 | { |
| 50 | if (pxm < 0) |
David Rientjes | b552a8c | 2009-11-17 14:27:32 -0800 | [diff] [blame] | 51 | return NUMA_NO_NODE; |
Yasunori Goto | 762834e | 2006-06-23 02:03:19 -0700 | [diff] [blame] | 52 | return pxm_to_node_map[pxm]; |
| 53 | } |
| 54 | |
Aaron Durbin | f363d16 | 2007-05-16 22:11:06 -0700 | [diff] [blame] | 55 | int node_to_pxm(int node) |
Yasunori Goto | 762834e | 2006-06-23 02:03:19 -0700 | [diff] [blame] | 56 | { |
| 57 | if (node < 0) |
| 58 | return PXM_INVAL; |
| 59 | return node_to_pxm_map[node]; |
| 60 | } |
| 61 | |
David Rientjes | 3484d79 | 2007-07-21 17:10:32 +0200 | [diff] [blame] | 62 | void __acpi_map_pxm_to_node(int pxm, int node) |
| 63 | { |
David Rientjes | 0f9b75e | 2010-03-25 16:33:04 -0700 | [diff] [blame] | 64 | if (pxm_to_node_map[pxm] == NUMA_NO_NODE || node < pxm_to_node_map[pxm]) |
| 65 | pxm_to_node_map[pxm] = node; |
| 66 | if (node_to_pxm_map[node] == PXM_INVAL || pxm < node_to_pxm_map[node]) |
| 67 | node_to_pxm_map[node] = pxm; |
David Rientjes | 3484d79 | 2007-07-21 17:10:32 +0200 | [diff] [blame] | 68 | } |
| 69 | |
Luck, Tony | 8ff6f48 | 2007-05-24 13:57:40 -0700 | [diff] [blame] | 70 | int acpi_map_pxm_to_node(int pxm) |
Yasunori Goto | 762834e | 2006-06-23 02:03:19 -0700 | [diff] [blame] | 71 | { |
| 72 | int node = pxm_to_node_map[pxm]; |
| 73 | |
David Rientjes | b552a8c | 2009-11-17 14:27:32 -0800 | [diff] [blame] | 74 | if (node < 0) { |
Yasunori Goto | 762834e | 2006-06-23 02:03:19 -0700 | [diff] [blame] | 75 | if (nodes_weight(nodes_found_map) >= MAX_NUMNODES) |
David Rientjes | b552a8c | 2009-11-17 14:27:32 -0800 | [diff] [blame] | 76 | return NUMA_NO_NODE; |
Yasunori Goto | 762834e | 2006-06-23 02:03:19 -0700 | [diff] [blame] | 77 | node = first_unset_node(nodes_found_map); |
David Rientjes | 3484d79 | 2007-07-21 17:10:32 +0200 | [diff] [blame] | 78 | __acpi_map_pxm_to_node(pxm, node); |
Yasunori Goto | 762834e | 2006-06-23 02:03:19 -0700 | [diff] [blame] | 79 | node_set(node, nodes_found_map); |
| 80 | } |
| 81 | |
| 82 | return node; |
| 83 | } |
| 84 | |
David Rientjes | ae2c6dc | 2007-07-21 17:09:56 +0200 | [diff] [blame] | 85 | static void __init |
| 86 | acpi_table_print_srat_entry(struct acpi_subtable_header *header) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | { |
| 88 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 89 | ACPI_FUNCTION_NAME("acpi_table_print_srat_entry"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | |
| 91 | if (!header) |
| 92 | return; |
| 93 | |
| 94 | switch (header->type) { |
| 95 | |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 96 | case ACPI_SRAT_TYPE_CPU_AFFINITY: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | #ifdef ACPI_DEBUG_OUTPUT |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 98 | { |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 99 | struct acpi_srat_cpu_affinity *p = |
| 100 | (struct acpi_srat_cpu_affinity *)header; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 101 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
| 102 | "SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n", |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 103 | p->apic_id, p->local_sapic_eid, |
| 104 | p->proximity_domain_lo, |
| 105 | (p->flags & ACPI_SRAT_CPU_ENABLED)? |
| 106 | "enabled" : "disabled")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 107 | } |
| 108 | #endif /* ACPI_DEBUG_OUTPUT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | break; |
| 110 | |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 111 | case ACPI_SRAT_TYPE_MEMORY_AFFINITY: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | #ifdef ACPI_DEBUG_OUTPUT |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 113 | { |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 114 | struct acpi_srat_mem_affinity *p = |
| 115 | (struct acpi_srat_mem_affinity *)header; |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 116 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
Bob Moore | 19d0cfe | 2008-06-10 15:54:40 +0800 | [diff] [blame] | 117 | "SRAT Memory (0x%lx length 0x%lx) in proximity domain %d %s%s\n", |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 118 | (unsigned long)p->base_address, |
| 119 | (unsigned long)p->length, |
Bob Moore | 19d0cfe | 2008-06-10 15:54:40 +0800 | [diff] [blame] | 120 | p->proximity_domain, |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 121 | (p->flags & ACPI_SRAT_MEM_ENABLED)? |
| 122 | "enabled" : "disabled", |
| 123 | (p->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE)? |
| 124 | " hot-pluggable" : "")); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 125 | } |
| 126 | #endif /* ACPI_DEBUG_OUTPUT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | break; |
| 128 | |
Suresh Siddha | 7237d3d | 2009-03-30 13:55:30 -0800 | [diff] [blame] | 129 | case ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY: |
| 130 | #ifdef ACPI_DEBUG_OUTPUT |
| 131 | { |
| 132 | struct acpi_srat_x2apic_cpu_affinity *p = |
| 133 | (struct acpi_srat_x2apic_cpu_affinity *)header; |
| 134 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, |
| 135 | "SRAT Processor (x2apicid[0x%08x]) in" |
| 136 | " proximity domain %d %s\n", |
| 137 | p->apic_id, |
| 138 | p->proximity_domain, |
| 139 | (p->flags & ACPI_SRAT_CPU_ENABLED) ? |
| 140 | "enabled" : "disabled")); |
| 141 | } |
| 142 | #endif /* ACPI_DEBUG_OUTPUT */ |
| 143 | break; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | default: |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 145 | printk(KERN_WARNING PREFIX |
| 146 | "Found unsupported SRAT entry (type = 0x%x)\n", |
| 147 | header->type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | break; |
| 149 | } |
| 150 | } |
| 151 | |
Fenghua Yu | 39b8931 | 2008-06-09 16:48:18 -0700 | [diff] [blame] | 152 | /* |
| 153 | * A lot of BIOS fill in 10 (= no distance) everywhere. This messes |
| 154 | * up the NUMA heuristics which wants the local node to have a smaller |
| 155 | * distance than the others. |
| 156 | * Do some quick checks here and only use the SLIT if it passes. |
| 157 | */ |
| 158 | static __init int slit_valid(struct acpi_table_slit *slit) |
| 159 | { |
| 160 | int i, j; |
| 161 | int d = slit->locality_count; |
| 162 | for (i = 0; i < d; i++) { |
| 163 | for (j = 0; j < d; j++) { |
| 164 | u8 val = slit->entry[d*i + j]; |
| 165 | if (i == j) { |
| 166 | if (val != LOCAL_DISTANCE) |
| 167 | return 0; |
| 168 | } else if (val <= LOCAL_DISTANCE) |
| 169 | return 0; |
| 170 | } |
| 171 | } |
| 172 | return 1; |
| 173 | } |
| 174 | |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 175 | static int __init acpi_parse_slit(struct acpi_table_header *table) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | { |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 177 | struct acpi_table_slit *slit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 179 | if (!table) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | return -EINVAL; |
| 181 | |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 182 | slit = (struct acpi_table_slit *)table; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | |
Fenghua Yu | 39b8931 | 2008-06-09 16:48:18 -0700 | [diff] [blame] | 184 | if (!slit_valid(slit)) { |
| 185 | printk(KERN_INFO "ACPI: SLIT table looks invalid. Not used.\n"); |
| 186 | return -EINVAL; |
| 187 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | acpi_numa_slit_init(slit); |
| 189 | |
| 190 | return 0; |
| 191 | } |
| 192 | |
Suresh Siddha | 7237d3d | 2009-03-30 13:55:30 -0800 | [diff] [blame] | 193 | void __init __attribute__ ((weak)) |
| 194 | acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa) |
| 195 | { |
| 196 | printk(KERN_WARNING PREFIX |
| 197 | "Found unsupported x2apic [0x%08x] SRAT entry\n", pa->apic_id); |
| 198 | return; |
| 199 | } |
| 200 | |
| 201 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | static int __init |
Suresh Siddha | 7237d3d | 2009-03-30 13:55:30 -0800 | [diff] [blame] | 203 | acpi_parse_x2apic_affinity(struct acpi_subtable_header *header, |
| 204 | const unsigned long end) |
| 205 | { |
| 206 | struct acpi_srat_x2apic_cpu_affinity *processor_affinity; |
| 207 | |
| 208 | processor_affinity = (struct acpi_srat_x2apic_cpu_affinity *)header; |
| 209 | if (!processor_affinity) |
| 210 | return -EINVAL; |
| 211 | |
| 212 | acpi_table_print_srat_entry(header); |
| 213 | |
| 214 | /* let architecture-dependent part to do it */ |
| 215 | acpi_numa_x2apic_affinity_init(processor_affinity); |
| 216 | |
| 217 | return 0; |
| 218 | } |
| 219 | |
| 220 | static int __init |
| 221 | acpi_parse_processor_affinity(struct acpi_subtable_header *header, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 222 | const unsigned long end) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | { |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 224 | struct acpi_srat_cpu_affinity *processor_affinity; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 226 | processor_affinity = (struct acpi_srat_cpu_affinity *)header; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | if (!processor_affinity) |
| 228 | return -EINVAL; |
| 229 | |
| 230 | acpi_table_print_srat_entry(header); |
| 231 | |
| 232 | /* let architecture-dependent part to do it */ |
| 233 | acpi_numa_processor_affinity_init(processor_affinity); |
| 234 | |
| 235 | return 0; |
| 236 | } |
| 237 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | static int __init |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 239 | acpi_parse_memory_affinity(struct acpi_subtable_header * header, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 240 | const unsigned long end) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | { |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 242 | struct acpi_srat_mem_affinity *memory_affinity; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 244 | memory_affinity = (struct acpi_srat_mem_affinity *)header; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | if (!memory_affinity) |
| 246 | return -EINVAL; |
| 247 | |
| 248 | acpi_table_print_srat_entry(header); |
| 249 | |
| 250 | /* let architecture-dependent part to do it */ |
| 251 | acpi_numa_memory_affinity_init(memory_affinity); |
| 252 | |
| 253 | return 0; |
| 254 | } |
| 255 | |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 256 | static int __init acpi_parse_srat(struct acpi_table_header *table) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | { |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 258 | if (!table) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | return -EINVAL; |
| 260 | |
Andi Kleen | cfa806f | 2010-07-20 15:18:36 -0700 | [diff] [blame] | 261 | /* Real work done in acpi_table_parse_srat below. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | |
| 263 | return 0; |
| 264 | } |
| 265 | |
David Rientjes | ae2c6dc | 2007-07-21 17:09:56 +0200 | [diff] [blame] | 266 | static int __init |
Alexey Starikovskiy | 15a58ed | 2007-02-02 19:48:22 +0300 | [diff] [blame] | 267 | acpi_table_parse_srat(enum acpi_srat_type id, |
Len Brown | 5a8765a | 2007-02-10 21:35:47 -0500 | [diff] [blame] | 268 | acpi_table_entry_handler handler, unsigned int max_entries) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | { |
Len Brown | 6eb87fe | 2007-02-10 22:17:07 -0500 | [diff] [blame] | 270 | return acpi_table_parse_entries(ACPI_SIG_SRAT, |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 271 | sizeof(struct acpi_table_srat), id, |
| 272 | handler, max_entries); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | } |
| 274 | |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 275 | int __init acpi_numa_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | { |
Tejun Heo | 940fed2 | 2011-02-16 12:13:06 +0100 | [diff] [blame] | 277 | int cnt = 0; |
Yinghai Lu | d3bd058 | 2010-12-16 19:09:58 -0800 | [diff] [blame] | 278 | |
Yinghai Lu | d3bd058 | 2010-12-16 19:09:58 -0800 | [diff] [blame] | 279 | /* |
| 280 | * Should not limit number with cpu num that is from NR_CPUS or nr_cpus= |
| 281 | * SRAT cpu entries could have different order with that in MADT. |
| 282 | * So go over all cpu entries in SRAT to get apicid to node mapping. |
| 283 | */ |
David Rientjes | 8716273 | 2009-09-25 15:20:04 -0700 | [diff] [blame] | 284 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | /* SRAT: Static Resource Affinity Table */ |
Len Brown | 7f8f97c | 2007-02-10 21:28:03 -0500 | [diff] [blame] | 286 | if (!acpi_table_parse(ACPI_SIG_SRAT, acpi_parse_srat)) { |
Suresh Siddha | 7237d3d | 2009-03-30 13:55:30 -0800 | [diff] [blame] | 287 | acpi_table_parse_srat(ACPI_SRAT_TYPE_X2APIC_CPU_AFFINITY, |
Tony Luck | 9378b63 | 2011-01-12 00:50:37 -0800 | [diff] [blame] | 288 | acpi_parse_x2apic_affinity, 0); |
David Rientjes | ae2c6dc | 2007-07-21 17:09:56 +0200 | [diff] [blame] | 289 | acpi_table_parse_srat(ACPI_SRAT_TYPE_CPU_AFFINITY, |
Tony Luck | 9378b63 | 2011-01-12 00:50:37 -0800 | [diff] [blame] | 290 | acpi_parse_processor_affinity, 0); |
Tejun Heo | 940fed2 | 2011-02-16 12:13:06 +0100 | [diff] [blame] | 291 | cnt = acpi_table_parse_srat(ACPI_SRAT_TYPE_MEMORY_AFFINITY, |
David Rientjes | 8716273 | 2009-09-25 15:20:04 -0700 | [diff] [blame] | 292 | acpi_parse_memory_affinity, |
| 293 | NR_NODE_MEMBLKS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | } |
| 295 | |
| 296 | /* SLIT: System Locality Information Table */ |
Len Brown | 7f8f97c | 2007-02-10 21:28:03 -0500 | [diff] [blame] | 297 | acpi_table_parse(ACPI_SIG_SLIT, acpi_parse_slit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | |
| 299 | acpi_numa_arch_fixup(); |
Tejun Heo | 940fed2 | 2011-02-16 12:13:06 +0100 | [diff] [blame] | 300 | |
| 301 | if (cnt <= 0) |
| 302 | return cnt ?: -ENOENT; |
| 303 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | } |
| 305 | |
Yasunori Goto | 7e81ab9 | 2007-05-08 20:27:01 -0700 | [diff] [blame] | 306 | int acpi_get_pxm(acpi_handle h) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | { |
Matthew Wilcox | 27663c5 | 2008-10-10 02:22:59 -0400 | [diff] [blame] | 308 | unsigned long long pxm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | acpi_status status; |
| 310 | acpi_handle handle; |
| 311 | acpi_handle phandle = h; |
| 312 | |
| 313 | do { |
| 314 | handle = phandle; |
| 315 | status = acpi_evaluate_integer(handle, "_PXM", NULL, &pxm); |
| 316 | if (ACPI_SUCCESS(status)) |
Jan Engelhardt | 50dd096 | 2006-10-01 00:28:50 +0200 | [diff] [blame] | 317 | return pxm; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | status = acpi_get_parent(handle, &phandle); |
Len Brown | 4be44fc | 2005-08-05 00:44:28 -0400 | [diff] [blame] | 319 | } while (ACPI_SUCCESS(status)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | return -1; |
| 321 | } |
Yasunori Goto | 1e3590e | 2006-06-27 02:53:31 -0700 | [diff] [blame] | 322 | |
Yasunori Goto | 7e81ab9 | 2007-05-08 20:27:01 -0700 | [diff] [blame] | 323 | int acpi_get_node(acpi_handle *handle) |
Yasunori Goto | 1e3590e | 2006-06-27 02:53:31 -0700 | [diff] [blame] | 324 | { |
| 325 | int pxm, node = -1; |
| 326 | |
Yasunori Goto | 1e3590e | 2006-06-27 02:53:31 -0700 | [diff] [blame] | 327 | pxm = acpi_get_pxm(handle); |
Cyrill Gorcunov | 27ce341 | 2009-03-04 11:55:29 -0800 | [diff] [blame] | 328 | if (pxm >= 0 && pxm < MAX_PXM_DOMAINS) |
Yasunori Goto | 1e3590e | 2006-06-27 02:53:31 -0700 | [diff] [blame] | 329 | node = acpi_map_pxm_to_node(pxm); |
| 330 | |
Len Brown | 635227e | 2006-07-01 16:48:23 -0400 | [diff] [blame] | 331 | return node; |
Yasunori Goto | 1e3590e | 2006-06-27 02:53:31 -0700 | [diff] [blame] | 332 | } |
| 333 | EXPORT_SYMBOL(acpi_get_node); |