Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 2000, 05 by Ralf Baechle (ralf@linux-mips.org) |
| 7 | * Copyright (C) 2000 by Silicon Graphics, Inc. |
| 8 | * Copyright (C) 2004 by Christoph Hellwig |
| 9 | * |
| 10 | * On SGI IP27 the ARC memory configuration data is completly bogus but |
| 11 | * alternate easier to use mechanisms are available. |
| 12 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <linux/init.h> |
| 14 | #include <linux/kernel.h> |
| 15 | #include <linux/mm.h> |
| 16 | #include <linux/mmzone.h> |
| 17 | #include <linux/module.h> |
| 18 | #include <linux/nodemask.h> |
| 19 | #include <linux/swap.h> |
| 20 | #include <linux/bootmem.h> |
Dave Hansen | 22a9835 | 2006-03-27 01:16:04 -0800 | [diff] [blame] | 21 | #include <linux/pfn.h> |
Christoph Lameter | c1f60a5 | 2006-09-25 23:31:11 -0700 | [diff] [blame] | 22 | #include <linux/highmem.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include <asm/page.h> |
Atsushi Nemoto | 6a1e552 | 2007-02-19 01:27:34 +0900 | [diff] [blame] | 24 | #include <asm/pgalloc.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include <asm/sections.h> |
| 26 | |
| 27 | #include <asm/sn/arch.h> |
| 28 | #include <asm/sn/hub.h> |
| 29 | #include <asm/sn/klconfig.h> |
| 30 | #include <asm/sn/sn_private.h> |
| 31 | |
| 32 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | #define SLOT_PFNSHIFT (SLOT_SHIFT - PAGE_SHIFT) |
| 34 | #define PFN_NASIDSHFT (NASID_SHFT - PAGE_SHIFT) |
| 35 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | struct node_data *__node_data[MAX_COMPACT_NODES]; |
| 37 | |
| 38 | EXPORT_SYMBOL(__node_data); |
| 39 | |
| 40 | static int fine_mode; |
| 41 | |
| 42 | static int is_fine_dirmode(void) |
| 43 | { |
| 44 | return (((LOCAL_HUB_L(NI_STATUS_REV_ID) & NSRI_REGIONSIZE_MASK) |
| 45 | >> NSRI_REGIONSIZE_SHFT) & REGIONSIZE_FINE); |
| 46 | } |
| 47 | |
| 48 | static hubreg_t get_region(cnodeid_t cnode) |
| 49 | { |
| 50 | if (fine_mode) |
| 51 | return COMPACT_TO_NASID_NODEID(cnode) >> NASID_TO_FINEREG_SHFT; |
| 52 | else |
| 53 | return COMPACT_TO_NASID_NODEID(cnode) >> NASID_TO_COARSEREG_SHFT; |
| 54 | } |
| 55 | |
| 56 | static hubreg_t region_mask; |
| 57 | |
| 58 | static void gen_region_mask(hubreg_t *region_mask) |
| 59 | { |
| 60 | cnodeid_t cnode; |
| 61 | |
| 62 | (*region_mask) = 0; |
| 63 | for_each_online_node(cnode) { |
| 64 | (*region_mask) |= 1ULL << get_region(cnode); |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | #define rou_rflag rou_flags |
| 69 | |
| 70 | static int router_distance; |
| 71 | |
| 72 | static void router_recurse(klrou_t *router_a, klrou_t *router_b, int depth) |
| 73 | { |
| 74 | klrou_t *router; |
| 75 | lboard_t *brd; |
| 76 | int port; |
| 77 | |
| 78 | if (router_a->rou_rflag == 1) |
| 79 | return; |
| 80 | |
| 81 | if (depth >= router_distance) |
| 82 | return; |
| 83 | |
| 84 | router_a->rou_rflag = 1; |
| 85 | |
| 86 | for (port = 1; port <= MAX_ROUTER_PORTS; port++) { |
| 87 | if (router_a->rou_port[port].port_nasid == INVALID_NASID) |
| 88 | continue; |
| 89 | |
| 90 | brd = (lboard_t *)NODE_OFFSET_TO_K0( |
| 91 | router_a->rou_port[port].port_nasid, |
| 92 | router_a->rou_port[port].port_offset); |
| 93 | |
| 94 | if (brd->brd_type == KLTYPE_ROUTER) { |
| 95 | router = (klrou_t *)NODE_OFFSET_TO_K0(NASID_GET(brd), brd->brd_compts[0]); |
| 96 | if (router == router_b) { |
| 97 | if (depth < router_distance) |
| 98 | router_distance = depth; |
| 99 | } |
| 100 | else |
| 101 | router_recurse(router, router_b, depth + 1); |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | router_a->rou_rflag = 0; |
| 106 | } |
| 107 | |
| 108 | unsigned char __node_distances[MAX_COMPACT_NODES][MAX_COMPACT_NODES]; |
| 109 | |
| 110 | static int __init compute_node_distance(nasid_t nasid_a, nasid_t nasid_b) |
| 111 | { |
| 112 | klrou_t *router, *router_a = NULL, *router_b = NULL; |
| 113 | lboard_t *brd, *dest_brd; |
| 114 | cnodeid_t cnode; |
| 115 | nasid_t nasid; |
| 116 | int port; |
| 117 | |
| 118 | /* Figure out which routers nodes in question are connected to */ |
| 119 | for_each_online_node(cnode) { |
| 120 | nasid = COMPACT_TO_NASID_NODEID(cnode); |
| 121 | |
| 122 | if (nasid == -1) continue; |
| 123 | |
| 124 | brd = find_lboard_class((lboard_t *)KL_CONFIG_INFO(nasid), |
| 125 | KLTYPE_ROUTER); |
| 126 | |
| 127 | if (!brd) |
| 128 | continue; |
| 129 | |
| 130 | do { |
| 131 | if (brd->brd_flags & DUPLICATE_BOARD) |
| 132 | continue; |
| 133 | |
| 134 | router = (klrou_t *)NODE_OFFSET_TO_K0(NASID_GET(brd), brd->brd_compts[0]); |
| 135 | router->rou_rflag = 0; |
| 136 | |
| 137 | for (port = 1; port <= MAX_ROUTER_PORTS; port++) { |
| 138 | if (router->rou_port[port].port_nasid == INVALID_NASID) |
| 139 | continue; |
| 140 | |
| 141 | dest_brd = (lboard_t *)NODE_OFFSET_TO_K0( |
| 142 | router->rou_port[port].port_nasid, |
| 143 | router->rou_port[port].port_offset); |
| 144 | |
| 145 | if (dest_brd->brd_type == KLTYPE_IP27) { |
| 146 | if (dest_brd->brd_nasid == nasid_a) |
| 147 | router_a = router; |
| 148 | if (dest_brd->brd_nasid == nasid_b) |
| 149 | router_b = router; |
| 150 | } |
| 151 | } |
| 152 | |
| 153 | } while ((brd = find_lboard_class(KLCF_NEXT(brd), KLTYPE_ROUTER))); |
| 154 | } |
| 155 | |
| 156 | if (router_a == NULL) { |
| 157 | printk("node_distance: router_a NULL\n"); |
| 158 | return -1; |
| 159 | } |
| 160 | if (router_b == NULL) { |
| 161 | printk("node_distance: router_b NULL\n"); |
| 162 | return -1; |
| 163 | } |
| 164 | |
| 165 | if (nasid_a == nasid_b) |
| 166 | return 0; |
| 167 | |
| 168 | if (router_a == router_b) |
| 169 | return 1; |
| 170 | |
| 171 | router_distance = 100; |
| 172 | router_recurse(router_a, router_b, 2); |
| 173 | |
| 174 | return router_distance; |
| 175 | } |
| 176 | |
| 177 | static void __init init_topology_matrix(void) |
| 178 | { |
| 179 | nasid_t nasid, nasid2; |
| 180 | cnodeid_t row, col; |
| 181 | |
| 182 | for (row = 0; row < MAX_COMPACT_NODES; row++) |
| 183 | for (col = 0; col < MAX_COMPACT_NODES; col++) |
| 184 | __node_distances[row][col] = -1; |
| 185 | |
| 186 | for_each_online_node(row) { |
| 187 | nasid = COMPACT_TO_NASID_NODEID(row); |
| 188 | for_each_online_node(col) { |
| 189 | nasid2 = COMPACT_TO_NASID_NODEID(col); |
| 190 | __node_distances[row][col] = |
| 191 | compute_node_distance(nasid, nasid2); |
| 192 | } |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | static void __init dump_topology(void) |
| 197 | { |
| 198 | nasid_t nasid; |
| 199 | cnodeid_t cnode; |
| 200 | lboard_t *brd, *dest_brd; |
| 201 | int port; |
| 202 | int router_num = 0; |
| 203 | klrou_t *router; |
| 204 | cnodeid_t row, col; |
| 205 | |
| 206 | printk("************** Topology ********************\n"); |
| 207 | |
| 208 | printk(" "); |
| 209 | for_each_online_node(col) |
| 210 | printk("%02d ", col); |
| 211 | printk("\n"); |
| 212 | for_each_online_node(row) { |
| 213 | printk("%02d ", row); |
| 214 | for_each_online_node(col) |
| 215 | printk("%2d ", node_distance(row, col)); |
| 216 | printk("\n"); |
| 217 | } |
| 218 | |
| 219 | for_each_online_node(cnode) { |
| 220 | nasid = COMPACT_TO_NASID_NODEID(cnode); |
| 221 | |
| 222 | if (nasid == -1) continue; |
| 223 | |
| 224 | brd = find_lboard_class((lboard_t *)KL_CONFIG_INFO(nasid), |
| 225 | KLTYPE_ROUTER); |
| 226 | |
| 227 | if (!brd) |
| 228 | continue; |
| 229 | |
| 230 | do { |
| 231 | if (brd->brd_flags & DUPLICATE_BOARD) |
| 232 | continue; |
| 233 | printk("Router %d:", router_num); |
| 234 | router_num++; |
| 235 | |
| 236 | router = (klrou_t *)NODE_OFFSET_TO_K0(NASID_GET(brd), brd->brd_compts[0]); |
| 237 | |
| 238 | for (port = 1; port <= MAX_ROUTER_PORTS; port++) { |
| 239 | if (router->rou_port[port].port_nasid == INVALID_NASID) |
| 240 | continue; |
| 241 | |
| 242 | dest_brd = (lboard_t *)NODE_OFFSET_TO_K0( |
| 243 | router->rou_port[port].port_nasid, |
| 244 | router->rou_port[port].port_offset); |
| 245 | |
| 246 | if (dest_brd->brd_type == KLTYPE_IP27) |
| 247 | printk(" %d", dest_brd->brd_nasid); |
| 248 | if (dest_brd->brd_type == KLTYPE_ROUTER) |
| 249 | printk(" r"); |
| 250 | } |
| 251 | printk("\n"); |
| 252 | |
| 253 | } while ( (brd = find_lboard_class(KLCF_NEXT(brd), KLTYPE_ROUTER)) ); |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | static pfn_t __init slot_getbasepfn(cnodeid_t cnode, int slot) |
| 258 | { |
| 259 | nasid_t nasid = COMPACT_TO_NASID_NODEID(cnode); |
| 260 | |
| 261 | return ((pfn_t)nasid << PFN_NASIDSHFT) | (slot << SLOT_PFNSHIFT); |
| 262 | } |
| 263 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | static pfn_t __init slot_psize_compute(cnodeid_t node, int slot) |
| 265 | { |
| 266 | nasid_t nasid; |
| 267 | lboard_t *brd; |
| 268 | klmembnk_t *banks; |
| 269 | unsigned long size; |
| 270 | |
| 271 | nasid = COMPACT_TO_NASID_NODEID(node); |
| 272 | /* Find the node board */ |
| 273 | brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_IP27); |
| 274 | if (!brd) |
| 275 | return 0; |
| 276 | |
| 277 | /* Get the memory bank structure */ |
| 278 | banks = (klmembnk_t *) find_first_component(brd, KLSTRUCT_MEMBNK); |
| 279 | if (!banks) |
| 280 | return 0; |
| 281 | |
| 282 | /* Size in _Megabytes_ */ |
| 283 | size = (unsigned long)banks->membnk_bnksz[slot/4]; |
| 284 | |
| 285 | /* hack for 128 dimm banks */ |
| 286 | if (size <= 128) { |
| 287 | if (slot % 4 == 0) { |
| 288 | size <<= 20; /* size in bytes */ |
| 289 | return(size >> PAGE_SHIFT); |
| 290 | } else |
| 291 | return 0; |
| 292 | } else { |
| 293 | size /= 4; |
| 294 | size <<= 20; |
| 295 | return size >> PAGE_SHIFT; |
| 296 | } |
| 297 | } |
| 298 | |
| 299 | static void __init mlreset(void) |
| 300 | { |
| 301 | int i; |
| 302 | |
| 303 | master_nasid = get_nasid(); |
| 304 | fine_mode = is_fine_dirmode(); |
| 305 | |
| 306 | /* |
| 307 | * Probe for all CPUs - this creates the cpumask and sets up the |
| 308 | * mapping tables. We need to do this as early as possible. |
| 309 | */ |
| 310 | #ifdef CONFIG_SMP |
| 311 | cpu_node_probe(); |
| 312 | #endif |
| 313 | |
| 314 | init_topology_matrix(); |
| 315 | dump_topology(); |
| 316 | |
| 317 | gen_region_mask(®ion_mask); |
| 318 | |
| 319 | setup_replication_mask(); |
| 320 | |
| 321 | /* |
| 322 | * Set all nodes' calias sizes to 8k |
| 323 | */ |
| 324 | for_each_online_node(i) { |
| 325 | nasid_t nasid; |
| 326 | |
| 327 | nasid = COMPACT_TO_NASID_NODEID(i); |
| 328 | |
| 329 | /* |
| 330 | * Always have node 0 in the region mask, otherwise |
| 331 | * CALIAS accesses get exceptions since the hub |
| 332 | * thinks it is a node 0 address. |
| 333 | */ |
| 334 | REMOTE_HUB_S(nasid, PI_REGION_PRESENT, (region_mask | 1)); |
| 335 | #ifdef CONFIG_REPLICATE_EXHANDLERS |
| 336 | REMOTE_HUB_S(nasid, PI_CALIAS_SIZE, PI_CALIAS_SIZE_8K); |
| 337 | #else |
| 338 | REMOTE_HUB_S(nasid, PI_CALIAS_SIZE, PI_CALIAS_SIZE_0); |
| 339 | #endif |
| 340 | |
| 341 | #ifdef LATER |
| 342 | /* |
| 343 | * Set up all hubs to have a big window pointing at |
| 344 | * widget 0. Memory mode, widget 0, offset 0 |
| 345 | */ |
| 346 | REMOTE_HUB_S(nasid, IIO_ITTE(SWIN0_BIGWIN), |
| 347 | ((HUB_PIO_MAP_TO_MEM << IIO_ITTE_IOSP_SHIFT) | |
| 348 | (0 << IIO_ITTE_WIDGET_SHIFT))); |
| 349 | #endif |
| 350 | } |
| 351 | } |
| 352 | |
| 353 | static void __init szmem(void) |
| 354 | { |
| 355 | pfn_t slot_psize, slot0sz = 0, nodebytes; /* Hack to detect problem configs */ |
Thomas Bogendoerfer | 2bf8ec2 | 2008-04-08 23:43:46 +0200 | [diff] [blame] | 356 | int slot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | cnodeid_t node; |
| 358 | |
| 359 | num_physpages = 0; |
| 360 | |
| 361 | for_each_online_node(node) { |
Thomas Bogendoerfer | 2bf8ec2 | 2008-04-08 23:43:46 +0200 | [diff] [blame] | 362 | nodebytes = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | for (slot = 0; slot < MAX_MEM_SLOTS; slot++) { |
| 364 | slot_psize = slot_psize_compute(node, slot); |
| 365 | if (slot == 0) |
| 366 | slot0sz = slot_psize; |
| 367 | /* |
| 368 | * We need to refine the hack when we have replicated |
| 369 | * kernel text. |
| 370 | */ |
| 371 | nodebytes += (1LL << SLOT_SHIFT); |
Thomas Bogendoerfer | 2bf8ec2 | 2008-04-08 23:43:46 +0200 | [diff] [blame] | 372 | |
| 373 | if (!slot_psize) |
| 374 | continue; |
| 375 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | if ((nodebytes >> PAGE_SHIFT) * (sizeof(struct page)) > |
Thomas Bogendoerfer | 2bf8ec2 | 2008-04-08 23:43:46 +0200 | [diff] [blame] | 377 | (slot0sz << PAGE_SHIFT)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | printk("Ignoring slot %d onwards on node %d\n", |
| 379 | slot, node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | slot = MAX_MEM_SLOTS; |
| 381 | continue; |
| 382 | } |
| 383 | num_physpages += slot_psize; |
Thomas Bogendoerfer | 2bf8ec2 | 2008-04-08 23:43:46 +0200 | [diff] [blame] | 384 | add_active_range(node, slot_getbasepfn(node, slot), |
| 385 | slot_getbasepfn(node, slot) + slot_psize); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | } |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | static void __init node_mem_init(cnodeid_t node) |
| 391 | { |
| 392 | pfn_t slot_firstpfn = slot_getbasepfn(node, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | pfn_t slot_freepfn = node_getfirstfree(node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | unsigned long bootmap_size; |
Thomas Bogendoerfer | 2bf8ec2 | 2008-04-08 23:43:46 +0200 | [diff] [blame] | 395 | pfn_t start_pfn, end_pfn; |
| 396 | |
| 397 | get_pfn_range_for_nid(node, &start_pfn, &end_pfn); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | |
| 399 | /* |
| 400 | * Allocate the node data structures on the node first. |
| 401 | */ |
| 402 | __node_data[node] = __va(slot_freepfn << PAGE_SHIFT); |
| 403 | |
Johannes Weiner | b61bfa3 | 2008-07-23 21:26:55 -0700 | [diff] [blame] | 404 | NODE_DATA(node)->bdata = &bootmem_node_data[node]; |
Thomas Bogendoerfer | 2bf8ec2 | 2008-04-08 23:43:46 +0200 | [diff] [blame] | 405 | NODE_DATA(node)->node_start_pfn = start_pfn; |
| 406 | NODE_DATA(node)->node_spanned_pages = end_pfn - start_pfn; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | |
| 408 | cpus_clear(hub_data(node)->h_cpus); |
| 409 | |
| 410 | slot_freepfn += PFN_UP(sizeof(struct pglist_data) + |
| 411 | sizeof(struct hub_data)); |
| 412 | |
| 413 | bootmap_size = init_bootmem_node(NODE_DATA(node), slot_freepfn, |
Thomas Bogendoerfer | 2bf8ec2 | 2008-04-08 23:43:46 +0200 | [diff] [blame] | 414 | start_pfn, end_pfn); |
| 415 | free_bootmem_with_active_regions(node, end_pfn); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 416 | reserve_bootmem_node(NODE_DATA(node), slot_firstpfn << PAGE_SHIFT, |
Bernhard Walle | 72a7fe3 | 2008-02-07 00:15:17 -0800 | [diff] [blame] | 417 | ((slot_freepfn - slot_firstpfn) << PAGE_SHIFT) + bootmap_size, |
| 418 | BOOTMEM_DEFAULT); |
Thomas Bogendoerfer | 2bf8ec2 | 2008-04-08 23:43:46 +0200 | [diff] [blame] | 419 | sparse_memory_present_with_active_regions(node); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | } |
| 421 | |
| 422 | /* |
| 423 | * A node with nothing. We use it to avoid any special casing in |
Rusty Russell | 29c337a | 2009-09-24 09:34:26 -0600 | [diff] [blame] | 424 | * cpumask_of_node |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | */ |
| 426 | static struct node_data null_node = { |
| 427 | .hub = { |
| 428 | .h_cpus = CPU_MASK_NONE |
| 429 | } |
| 430 | }; |
| 431 | |
| 432 | /* |
| 433 | * Currently, the intranode memory hole support assumes that each slot |
| 434 | * contains at least 32 MBytes of memory. We assume all bootmem data |
| 435 | * fits on the first slot. |
| 436 | */ |
| 437 | void __init prom_meminit(void) |
| 438 | { |
| 439 | cnodeid_t node; |
| 440 | |
| 441 | mlreset(); |
| 442 | szmem(); |
| 443 | |
| 444 | for (node = 0; node < MAX_COMPACT_NODES; node++) { |
| 445 | if (node_online(node)) { |
| 446 | node_mem_init(node); |
| 447 | continue; |
| 448 | } |
| 449 | __node_data[node] = &null_node; |
| 450 | } |
| 451 | } |
| 452 | |
Atsushi Nemoto | c44e8d5 | 2006-12-30 00:43:59 +0900 | [diff] [blame] | 453 | void __init prom_free_prom_memory(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | { |
| 455 | /* We got nothing to free here ... */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | } |
| 457 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | extern unsigned long setup_zero_pages(void); |
| 459 | |
| 460 | void __init paging_init(void) |
| 461 | { |
Christoph Lameter | f06a968 | 2006-09-25 23:31:10 -0700 | [diff] [blame] | 462 | unsigned long zones_size[MAX_NR_ZONES] = {0, }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | unsigned node; |
| 464 | |
| 465 | pagetable_init(); |
| 466 | |
| 467 | for_each_online_node(node) { |
Thomas Bogendoerfer | 2bf8ec2 | 2008-04-08 23:43:46 +0200 | [diff] [blame] | 468 | pfn_t start_pfn, end_pfn; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 469 | |
Thomas Bogendoerfer | 2bf8ec2 | 2008-04-08 23:43:46 +0200 | [diff] [blame] | 470 | get_pfn_range_for_nid(node, &start_pfn, &end_pfn); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | |
| 472 | if (end_pfn > max_low_pfn) |
| 473 | max_low_pfn = end_pfn; |
| 474 | } |
Thomas Bogendoerfer | 2bf8ec2 | 2008-04-08 23:43:46 +0200 | [diff] [blame] | 475 | zones_size[ZONE_NORMAL] = max_low_pfn; |
| 476 | free_area_init_nodes(zones_size); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 477 | } |
| 478 | |
| 479 | void __init mem_init(void) |
| 480 | { |
| 481 | unsigned long codesize, datasize, initsize, tmp; |
| 482 | unsigned node; |
| 483 | |
| 484 | high_memory = (void *) __va(num_physpages << PAGE_SHIFT); |
| 485 | |
| 486 | for_each_online_node(node) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 487 | /* |
Ralf Baechle | a3dddd5 | 2006-03-11 08:18:41 +0000 | [diff] [blame] | 488 | * This will free up the bootmem, ie, slot 0 memory. |
| 489 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | totalram_pages += free_all_bootmem_node(NODE_DATA(node)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | } |
| 492 | |
| 493 | totalram_pages -= setup_zero_pages(); /* This comes from node 0 */ |
| 494 | |
| 495 | codesize = (unsigned long) &_etext - (unsigned long) &_text; |
| 496 | datasize = (unsigned long) &_edata - (unsigned long) &_etext; |
| 497 | initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; |
| 498 | |
| 499 | tmp = nr_free_pages(); |
| 500 | printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, " |
| 501 | "%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n", |
| 502 | tmp << (PAGE_SHIFT-10), |
| 503 | num_physpages << (PAGE_SHIFT-10), |
| 504 | codesize >> 10, |
| 505 | (num_physpages - tmp) << (PAGE_SHIFT-10), |
| 506 | datasize >> 10, |
| 507 | initsize >> 10, |
Andreas Fenkart | 4b52940 | 2010-01-08 14:42:31 -0800 | [diff] [blame] | 508 | totalhigh_pages << (PAGE_SHIFT-10)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 509 | } |