Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 1 | /* |
Hans Rosenfeld | eec1d4f | 2010-10-29 17:14:30 +0200 | [diff] [blame] | 2 | * AMD NUMA support. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Discover the memory map and associated nodes. |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 4 | * |
Hans Rosenfeld | eec1d4f | 2010-10-29 17:14:30 +0200 | [diff] [blame] | 5 | * This version reads it directly from the AMD northbridge. |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 6 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * Copyright 2002,2003 Andi Kleen, SuSE Labs. |
| 8 | */ |
| 9 | #include <linux/kernel.h> |
| 10 | #include <linux/init.h> |
| 11 | #include <linux/string.h> |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/nodemask.h> |
Yinghai Lu | a9ce6bc | 2010-08-25 13:39:17 -0700 | [diff] [blame] | 14 | #include <linux/memblock.h> |
| 15 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | #include <asm/io.h> |
| 17 | #include <linux/pci_ids.h> |
Yinghai Lu | cbf9bd6 | 2008-02-19 03:21:06 -0800 | [diff] [blame] | 18 | #include <linux/acpi.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include <asm/types.h> |
| 20 | #include <asm/mmzone.h> |
| 21 | #include <asm/proto.h> |
| 22 | #include <asm/e820.h> |
| 23 | #include <asm/pci-direct.h> |
| 24 | #include <asm/numa.h> |
Yinghai Lu | cbf9bd6 | 2008-02-19 03:21:06 -0800 | [diff] [blame] | 25 | #include <asm/mpspec.h> |
| 26 | #include <asm/apic.h> |
Andreas Herrmann | 23ac4ae | 2010-09-17 18:03:43 +0200 | [diff] [blame] | 27 | #include <asm/amd_nb.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
David Rientjes | 8ee2deb | 2009-09-25 15:20:00 -0700 | [diff] [blame] | 29 | static struct bootnode __initdata nodes[8]; |
David Rientjes | f51bf30 | 2010-12-22 17:23:51 -0800 | [diff] [blame^] | 30 | static unsigned char __initdata nodeids[8]; |
David Rientjes | 8ee2deb | 2009-09-25 15:20:00 -0700 | [diff] [blame] | 31 | static nodemask_t __initdata nodes_parsed = NODE_MASK_NONE; |
| 32 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | static __init int find_northbridge(void) |
| 34 | { |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 35 | int num; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 37 | for (num = 0; num < 32; num++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | u32 header; |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 39 | |
| 40 | header = read_pci_config(0, num, 0, 0x00); |
Joachim Deguara | bb4a1d6 | 2008-01-30 13:34:12 +0100 | [diff] [blame] | 41 | if (header != (PCI_VENDOR_ID_AMD | (0x1100<<16)) && |
| 42 | header != (PCI_VENDOR_ID_AMD | (0x1200<<16)) && |
| 43 | header != (PCI_VENDOR_ID_AMD | (0x1300<<16))) |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 44 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 46 | header = read_pci_config(0, num, 1, 0x00); |
Joachim Deguara | bb4a1d6 | 2008-01-30 13:34:12 +0100 | [diff] [blame] | 47 | if (header != (PCI_VENDOR_ID_AMD | (0x1101<<16)) && |
| 48 | header != (PCI_VENDOR_ID_AMD | (0x1201<<16)) && |
| 49 | header != (PCI_VENDOR_ID_AMD | (0x1301<<16))) |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 50 | continue; |
| 51 | return num; |
| 52 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 54 | return -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | } |
| 56 | |
Yinghai Lu | cbf9bd6 | 2008-02-19 03:21:06 -0800 | [diff] [blame] | 57 | static __init void early_get_boot_cpu_id(void) |
| 58 | { |
| 59 | /* |
Robert Richter | f6e9456c | 2010-07-21 19:03:58 +0200 | [diff] [blame] | 60 | * need to get the APIC ID of the BSP so can use that to |
Hans Rosenfeld | eec1d4f | 2010-10-29 17:14:30 +0200 | [diff] [blame] | 61 | * create apicid_to_node in amd_scan_nodes() |
Yinghai Lu | cbf9bd6 | 2008-02-19 03:21:06 -0800 | [diff] [blame] | 62 | */ |
Yinghai Lu | a4caa18 | 2008-06-19 12:15:01 -0700 | [diff] [blame] | 63 | #ifdef CONFIG_X86_MPPARSE |
Yinghai Lu | cbf9bd6 | 2008-02-19 03:21:06 -0800 | [diff] [blame] | 64 | /* |
| 65 | * get boot-time SMP configuration: |
| 66 | */ |
| 67 | if (smp_found_config) |
| 68 | early_get_smp_config(); |
Yinghai Lu | a4caa18 | 2008-06-19 12:15:01 -0700 | [diff] [blame] | 69 | #endif |
Yinghai Lu | cbf9bd6 | 2008-02-19 03:21:06 -0800 | [diff] [blame] | 70 | early_init_lapic_mapping(); |
| 71 | } |
| 72 | |
Hans Rosenfeld | eec1d4f | 2010-10-29 17:14:30 +0200 | [diff] [blame] | 73 | int __init amd_numa_init(unsigned long start_pfn, unsigned long end_pfn) |
David Rientjes | 8ee2deb | 2009-09-25 15:20:00 -0700 | [diff] [blame] | 74 | { |
| 75 | unsigned long start = PFN_PHYS(start_pfn); |
| 76 | unsigned long end = PFN_PHYS(end_pfn); |
| 77 | unsigned numnodes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | unsigned long prevbase; |
David Rientjes | 8ee2deb | 2009-09-25 15:20:00 -0700 | [diff] [blame] | 79 | int i, nb, found = 0; |
Thomas Gleixner | d34c089 | 2008-05-12 15:43:35 +0200 | [diff] [blame] | 80 | u32 nodeid, reg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | |
Andi Kleen | 0637a70 | 2006-09-26 10:52:41 +0200 | [diff] [blame] | 82 | if (!early_pci_allowed()) |
| 83 | return -1; |
| 84 | |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 85 | nb = find_northbridge(); |
| 86 | if (nb < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | return nb; |
| 88 | |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 89 | pr_info("Scanning NUMA topology in Northbridge %d\n", nb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 91 | reg = read_pci_config(0, nb, 0, 0x60); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | numnodes = ((reg >> 4) & 0xF) + 1; |
Andi Kleen | 3bea9c9 | 2007-05-02 19:27:21 +0200 | [diff] [blame] | 93 | if (numnodes <= 1) |
| 94 | return -1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | |
David Rientjes | 8ee2deb | 2009-09-25 15:20:00 -0700 | [diff] [blame] | 96 | pr_info("Number of physical nodes %d\n", numnodes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | prevbase = 0; |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 99 | for (i = 0; i < 8; i++) { |
| 100 | unsigned long base, limit; |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 101 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | base = read_pci_config(0, nb, 1, 0x40 + i*8); |
| 103 | limit = read_pci_config(0, nb, 1, 0x44 + i*8); |
| 104 | |
David Rientjes | f51bf30 | 2010-12-22 17:23:51 -0800 | [diff] [blame^] | 105 | nodeids[i] = nodeid = limit & 7; |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 106 | if ((base & 3) == 0) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | if (i < numnodes) |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 108 | pr_info("Skipping disabled node %d\n", i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | continue; |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 110 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | if (nodeid >= numnodes) { |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 112 | pr_info("Ignoring excess node %d (%lx:%lx)\n", nodeid, |
| 113 | base, limit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | continue; |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 115 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 117 | if (!limit) { |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 118 | pr_info("Skipping node entry %d (base %lx)\n", |
| 119 | i, base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | continue; |
| 121 | } |
| 122 | if ((base >> 8) & 3 || (limit >> 8) & 3) { |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 123 | pr_err("Node %d using interleaving mode %lx/%lx\n", |
| 124 | nodeid, (base >> 8) & 3, (limit >> 8) & 3); |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 125 | return -1; |
| 126 | } |
David Rientjes | 8ee2deb | 2009-09-25 15:20:00 -0700 | [diff] [blame] | 127 | if (node_isset(nodeid, nodes_parsed)) { |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 128 | pr_info("Node %d already present, skipping\n", |
| 129 | nodeid); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 130 | continue; |
| 131 | } |
| 132 | |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 133 | limit >>= 16; |
| 134 | limit <<= 24; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | limit |= (1<<24)-1; |
Magnus Damm | ffd10a2 | 2005-11-05 17:25:54 +0100 | [diff] [blame] | 136 | limit++; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | |
David Rientjes | 8ee2deb | 2009-09-25 15:20:00 -0700 | [diff] [blame] | 138 | if (limit > end) |
| 139 | limit = end; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | if (limit <= base) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | continue; |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 142 | |
| 143 | base >>= 16; |
| 144 | base <<= 24; |
| 145 | |
| 146 | if (base < start) |
| 147 | base = start; |
| 148 | if (limit > end) |
| 149 | limit = end; |
| 150 | if (limit == base) { |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 151 | pr_err("Empty node %d\n", nodeid); |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 152 | continue; |
| 153 | } |
| 154 | if (limit < base) { |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 155 | pr_err("Node %d bogus settings %lx-%lx.\n", |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 156 | nodeid, base, limit); |
| 157 | continue; |
| 158 | } |
| 159 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | /* Could sort here, but pun for now. Should not happen anyroads. */ |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 161 | if (prevbase > base) { |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 162 | pr_err("Node map not sorted %lx,%lx\n", |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 163 | prevbase, base); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | return -1; |
| 165 | } |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 166 | |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 167 | pr_info("Node %d MemBase %016lx Limit %016lx\n", |
| 168 | nodeid, base, limit); |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 169 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | found++; |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 171 | |
| 172 | nodes[nodeid].start = base; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | nodes[nodeid].end = limit; |
| 174 | |
| 175 | prevbase = base; |
| 176 | |
David Rientjes | 8ee2deb | 2009-09-25 15:20:00 -0700 | [diff] [blame] | 177 | node_set(nodeid, nodes_parsed); |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 178 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | |
| 180 | if (!found) |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 181 | return -1; |
David Rientjes | 8ee2deb | 2009-09-25 15:20:00 -0700 | [diff] [blame] | 182 | return 0; |
| 183 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | |
David Rientjes | f51bf30 | 2010-12-22 17:23:51 -0800 | [diff] [blame^] | 185 | #ifdef CONFIG_NUMA_EMU |
| 186 | static s16 fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = { |
| 187 | [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE |
| 188 | }; |
| 189 | |
| 190 | int __init amd_get_nodes(struct bootnode *physnodes) |
| 191 | { |
| 192 | int i; |
| 193 | int ret = 0; |
| 194 | |
| 195 | for_each_node_mask(i, nodes_parsed) { |
| 196 | physnodes[ret].start = nodes[i].start; |
| 197 | physnodes[ret].end = nodes[i].end; |
| 198 | ret++; |
| 199 | } |
| 200 | return ret; |
| 201 | } |
| 202 | |
| 203 | static int __init find_node_by_addr(unsigned long addr) |
| 204 | { |
| 205 | int ret = NUMA_NO_NODE; |
| 206 | int i; |
| 207 | |
| 208 | for (i = 0; i < 8; i++) |
| 209 | if (addr >= nodes[i].start && addr < nodes[i].end) { |
| 210 | ret = i; |
| 211 | break; |
| 212 | } |
| 213 | return ret; |
| 214 | } |
| 215 | |
| 216 | /* |
| 217 | * For NUMA emulation, fake proximity domain (_PXM) to node id mappings must be |
| 218 | * setup to represent the physical topology but reflect the emulated |
| 219 | * environment. For each emulated node, the real node which it appears on is |
| 220 | * found and a fake pxm to nid mapping is created which mirrors the actual |
| 221 | * locality. node_distance() then represents the correct distances between |
| 222 | * emulated nodes by using the fake acpi mappings to pxms. |
| 223 | */ |
| 224 | void __init amd_fake_nodes(const struct bootnode *nodes, int nr_nodes) |
| 225 | { |
| 226 | unsigned int bits; |
| 227 | unsigned int cores; |
| 228 | unsigned int apicid_base = 0; |
| 229 | int i; |
| 230 | |
| 231 | bits = boot_cpu_data.x86_coreid_bits; |
| 232 | cores = 1 << bits; |
| 233 | early_get_boot_cpu_id(); |
| 234 | if (boot_cpu_physical_apicid > 0) |
| 235 | apicid_base = boot_cpu_physical_apicid; |
| 236 | |
| 237 | for (i = 0; i < nr_nodes; i++) { |
| 238 | int index; |
| 239 | int nid; |
| 240 | int j; |
| 241 | |
| 242 | nid = find_node_by_addr(nodes[i].start); |
| 243 | if (nid == NUMA_NO_NODE) |
| 244 | continue; |
| 245 | |
| 246 | index = nodeids[nid] << bits; |
| 247 | if (fake_apicid_to_node[index + apicid_base] == NUMA_NO_NODE) |
| 248 | for (j = apicid_base; j < cores + apicid_base; j++) |
| 249 | fake_apicid_to_node[index + j] = i; |
| 250 | #ifdef CONFIG_ACPI_NUMA |
| 251 | __acpi_map_pxm_to_node(nid, i); |
| 252 | #endif |
| 253 | } |
| 254 | memcpy(apicid_to_node, fake_apicid_to_node, sizeof(apicid_to_node)); |
| 255 | } |
| 256 | #endif /* CONFIG_NUMA_EMU */ |
| 257 | |
Hans Rosenfeld | eec1d4f | 2010-10-29 17:14:30 +0200 | [diff] [blame] | 258 | int __init amd_scan_nodes(void) |
David Rientjes | 8ee2deb | 2009-09-25 15:20:00 -0700 | [diff] [blame] | 259 | { |
| 260 | unsigned int bits; |
| 261 | unsigned int cores; |
| 262 | unsigned int apicid_base; |
| 263 | int i; |
| 264 | |
| 265 | BUG_ON(nodes_empty(nodes_parsed)); |
| 266 | node_possible_map = nodes_parsed; |
Suresh Siddha | 6ec6e0d | 2008-03-25 10:14:35 -0700 | [diff] [blame] | 267 | memnode_shift = compute_hash_shift(nodes, 8, NULL); |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 268 | if (memnode_shift < 0) { |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 269 | pr_err("No NUMA node hash function found. Contact maintainer\n"); |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 270 | return -1; |
| 271 | } |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 272 | pr_info("Using node hash shift of %d\n", memnode_shift); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | |
Yinghai Lu | 3f6e5a1 | 2008-01-30 13:30:39 +0100 | [diff] [blame] | 274 | /* use the coreid bits from early_identify_cpu */ |
| 275 | bits = boot_cpu_data.x86_coreid_bits; |
| 276 | cores = (1<<bits); |
Yinghai Lu | cbf9bd6 | 2008-02-19 03:21:06 -0800 | [diff] [blame] | 277 | apicid_base = 0; |
Robert Richter | f6e9456c | 2010-07-21 19:03:58 +0200 | [diff] [blame] | 278 | /* get the APIC ID of the BSP early for systems with apicid lifting */ |
Yinghai Lu | cbf9bd6 | 2008-02-19 03:21:06 -0800 | [diff] [blame] | 279 | early_get_boot_cpu_id(); |
| 280 | if (boot_cpu_physical_apicid > 0) { |
David Rientjes | 1af5ba5 | 2009-09-25 15:19:47 -0700 | [diff] [blame] | 281 | pr_info("BSP APIC ID: %02x\n", boot_cpu_physical_apicid); |
Yinghai Lu | cbf9bd6 | 2008-02-19 03:21:06 -0800 | [diff] [blame] | 282 | apicid_base = boot_cpu_physical_apicid; |
| 283 | } |
Yinghai Lu | 3f6e5a1 | 2008-01-30 13:30:39 +0100 | [diff] [blame] | 284 | |
David Rientjes | 8ee2deb | 2009-09-25 15:20:00 -0700 | [diff] [blame] | 285 | for_each_node_mask(i, node_possible_map) { |
| 286 | int j; |
Yinghai Lu | 40bcc69 | 2009-01-05 18:39:01 -0800 | [diff] [blame] | 287 | |
Yinghai Lu | a9ce6bc | 2010-08-25 13:39:17 -0700 | [diff] [blame] | 288 | memblock_x86_register_active_regions(i, |
Yinghai Lu | 40bcc69 | 2009-01-05 18:39:01 -0800 | [diff] [blame] | 289 | nodes[i].start >> PAGE_SHIFT, |
| 290 | nodes[i].end >> PAGE_SHIFT); |
| 291 | for (j = apicid_base; j < cores + apicid_base; j++) |
| 292 | apicid_to_node[(i << bits) + j] = i; |
| 293 | setup_node_bootmem(i, nodes[i].start, nodes[i].end); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | } |
| 295 | |
| 296 | numa_init_array(); |
| 297 | return 0; |
Carlos R. Mafra | 3aa88cd | 2008-01-30 13:32:36 +0100 | [diff] [blame] | 298 | } |