1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _LGRP_H 28 #define _LGRP_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 /* 33 * locality group definitions for kernel 34 */ 35 36 #include <sys/types.h> 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 #define LGRP_NONE (-1) /* non-existent lgroup ID */ 43 44 #if (!defined(_KERNEL) && !defined(_KMEMUSER)) 45 typedef struct lgrp_mem_policy_info { int opaque[2]; } lgrp_mem_policy_info_t; 46 #endif /* !_KERNEL && !_KMEMUSER */ 47 48 #if (defined(_KERNEL) || defined(_KMEMUSER)) 49 #include <sys/cpuvar.h> 50 #include <sys/bitmap.h> 51 #include <sys/vnode.h> 52 #include <vm/anon.h> 53 #include <vm/seg.h> 54 #include <sys/lgrp_user.h> 55 #include <sys/param.h> 56 57 typedef uint32_t lgrp_load_t; /* lgrp_loadavg type */ 58 typedef uintptr_t lgrp_handle_t; /* lgrp handle */ 59 60 #define LGRP_NONE_SUCH LGRP_NONE /* non-existent lgroup ID */ 61 /* null platform handle */ 62 #define LGRP_NULL_HANDLE ((lgrp_handle_t)0xbadbad) 63 #define LGRP_DEFAULT_HANDLE ((lgrp_handle_t)0xbabecafe) /* uma handle */ 64 #define LGRP_ROOTID (0) /* root lgroup ID */ 65 66 /* 67 * Maximum number of lgrps a platform may define. 68 */ 69 70 #define NLGRPS_MAX 64 71 #define NLGRP_LEAVES_MAX 24 72 #define LGRP_LOADAVG_MAX UINT32_MAX 73 #define LPL_RSET_MAX NLGRP_LEAVES_MAX 74 #define LPL_RSET_ARRYSZ (LPL_RSET_MAX + 1) 75 76 /* 77 * The load-average we expect for one cpu-bound thread's worth of load 78 */ 79 #define LGRP_LOADAVG_THREAD_MAX 65516 80 81 /* 82 * The input to the load-average generating function for one cpu-bound thread's 83 * worth of load 84 */ 85 86 #define LGRP_LOADAVG_IN_THREAD_MAX 128 87 88 /* 89 * LPL actions 90 */ 91 92 typedef enum { 93 LPL_INCREMENT, 94 LPL_DECREMENT 95 } lpl_act_t; 96 97 /* 98 * lgroup statistics. Most of these are counters that are updated 99 * dynamically so they are hashed to CPU buckets to reduce cache 100 * interference. The remaining statistics are snapshots of kernel 101 * data, so they aren't stored in the array of counter stats. 102 * 103 * For the hashed stats to make sense, you have to sum all the buckets for 104 * that stat, hence macros are provided to read the stats. 105 */ 106 107 #define LGRP_NUM_CPU_BUCKETS 8 /* must be power of 2 */ 108 #define LGRP_CPU_BUCKET_MASK (LGRP_NUM_CPU_BUCKETS - 1) 109 110 /* 111 * Flags for what to do with lgroup memory policy 112 * Used for heap and stack where policy is extended to new segments added to 113 * the end 114 */ 115 #define LGRP_MP_FLAG_EXTEND_UP 0x1 /* policy should extend up */ 116 #define LGRP_MP_FLAG_EXTEND_DOWN 0x2 /* policy should extend down */ 117 118 #define LGRP_STAT(stats, bucket, whichstat) \ 119 ((stats)->ls_data[bucket][whichstat]) 120 121 /* Return a pointer suitable for an atomic 64-bit op on the bucket */ 122 #define LGRP_STAT_WRITE_PTR(stats, whichstat) \ 123 (&LGRP_STAT(stats, (CPU->cpu_id) & LGRP_CPU_BUCKET_MASK, \ 124 whichstat)) 125 126 /* Sum up all the buckets and return the value in 'val' */ 127 #define LGRP_STAT_READ(stats, whichstat, val) { \ 128 int bkt; \ 129 for (val = 0, bkt = 0; bkt < LGRP_NUM_CPU_BUCKETS; bkt++) \ 130 val += LGRP_STAT(stats, bkt, whichstat); \ 131 } 132 133 /* Reset all buckets for the stat to 0 */ 134 #define LGRP_STAT_RESET(stats, stat) { \ 135 int i; \ 136 for (i = 0; i < LGRP_NUM_CPU_BUCKETS; i++) \ 137 LGRP_STAT(stats, i, stat) = 0; \ 138 } 139 140 /* 141 * Define all of the statistics that are kept for lgrp kstats, 142 * and their corresponding text names. 143 */ 144 145 typedef enum lgrp_stat_types { 146 LGRP_NUM_MIGR, /* # migrations away from this lgrp */ 147 LGRP_NUM_ALLOC_FAIL, /* # times alloc fails for chosen lgrp */ 148 LGRP_PM_SRC_PGS, /* # pages migrated from this lgrp */ 149 LGRP_PM_DEST_PGS, /* # pages migrated to this lgrp */ 150 LGRP_PM_FAIL_ALLOC_PGS, /* # pages failed to migrate to this lgrp */ 151 LGRP_PM_FAIL_LOCK_PGS, /* # pages failed to migrate from this lgrp */ 152 LGRP_PMM_PGS, /* # pages marked to migrate from this lgrp */ 153 LGRP_PMM_FAIL_PGS, /* # pages marked to migrate from this lgrp */ 154 LGRP_NUM_DEFAULT, /* # of times default policy applied */ 155 LGRP_NUM_NEXT, /* # of times next touch policy applied */ 156 LGRP_NUM_RANDOM, /* # of times random policy applied */ 157 LGRP_NUM_RANDOM_PROC, /* # of times random proc policy applied */ 158 LGRP_NUM_RANDOM_PSET, /* # of times random pset policy applied */ 159 LGRP_NUM_ROUNDROBIN, /* # of times round robin policy applied */ 160 LGRP_NUM_NEXT_SEG, /* # of times next to seg policy applied */ 161 LGRP_NUM_COUNTER_STATS, /* always last */ 162 LGRP_CTR_STATS_ALLOC = 16 /* cache-align pad - multiple of 8 */ 163 /* always keep >= LGRP_NUM_COUNTER_STATS */ 164 } lgrp_stat_t; 165 166 typedef enum lgrp_snap_stat_types { 167 LGRP_NUM_CPUS, /* number of CPUs */ 168 LGRP_NUM_PG_FREE, /* # of free pages */ 169 LGRP_NUM_PG_AVAIL, /* # of allocatable physical pages */ 170 LGRP_NUM_PG_INSTALL, /* # of installed physical pages */ 171 LGRP_LOADAVG, /* unscaled load average of this lgrp */ 172 LGRP_LOADAVG_SCALE, /* load unit of one CPU bound thread */ 173 LGRP_NUM_SNAPSHOT_STATS /* always last */ 174 } lgrp_snap_stat_t; 175 176 #define LGRP_KSTAT_NAMES \ 177 static char *lgrp_kstat_names[] = { \ 178 \ 179 /* Counter stats */ \ 180 "lwp migrations", \ 181 "alloc fail", \ 182 "pages migrated from", \ 183 "pages migrated to", \ 184 "pages failed to migrate to", \ 185 "pages failed to migrate from", \ 186 "pages marked for migration", \ 187 "pages failed to mark", \ 188 "default policy", \ 189 "next-touch policy", \ 190 "random policy", \ 191 "span process policy", \ 192 "span psrset policy", \ 193 "round robin policy", \ 194 "next-seg policy", \ 195 \ 196 /* Snapshot stats */ \ 197 "cpus", \ 198 "pages free", \ 199 "pages avail", \ 200 "pages installed", \ 201 "load average", \ 202 "loadscale" \ 203 } 204 205 #define LGRP_NUM_STATS ((int)LGRP_NUM_COUNTER_STATS + \ 206 (int)LGRP_NUM_SNAPSHOT_STATS) 207 208 /* 209 * The contents of this structure are opaque and should only be 210 * accessed through the LGRP_STAT macro. 211 */ 212 struct lgrp_stats { 213 int64_t ls_data[LGRP_NUM_CPU_BUCKETS][LGRP_CTR_STATS_ALLOC]; 214 }; 215 216 /* The kernel's version of a bitmap of lgroups */ 217 typedef uint64_t klgrpset_t; 218 219 /* 220 * This really belongs in memnode.h, but it must be defined here to avoid 221 * recursive inclusion problems. Note that memnode.h includes this header. 222 */ 223 typedef uint64_t mnodeset_t; 224 225 /* 226 * lgroup structure 227 * 228 * Visible to generic code and contains the lgroup ID, CPUs in this lgroup, 229 * and a platform handle used to identify this lgroup to the lgroup platform 230 * support code 231 */ 232 typedef struct lgrp { 233 234 lgrp_id_t lgrp_id; /* which lgroup */ 235 int lgrp_latency; 236 lgrp_handle_t lgrp_plathand; /* handle for platform calls */ 237 struct lgrp *lgrp_parent; /* parent lgroup */ 238 uint_t lgrp_reserved1; /* filler */ 239 uint_t lgrp_childcnt; /* number of children lgroups */ 240 klgrpset_t lgrp_children; /* children lgroups */ 241 klgrpset_t lgrp_leaves; /* (direct decendant) leaf lgroups */ 242 243 /* 244 * set of lgroups containing a given type of resource 245 * at this level of locality 246 */ 247 klgrpset_t lgrp_set[LGRP_RSRC_COUNT]; 248 249 mnodeset_t lgrp_mnodes; /* set of memory nodes in this lgroup */ 250 uint_t lgrp_nmnodes; /* number of memnodes */ 251 uint_t lgrp_reserved2; /* filler */ 252 253 struct cpu *lgrp_cpu; /* pointer to a cpu may be null */ 254 uint_t lgrp_cpucnt; /* number of cpus in this lgrp */ 255 kstat_t *lgrp_kstat; /* per-lgrp kstats */ 256 } lgrp_t; 257 258 /* 259 * lgroup load average structure 260 */ 261 262 typedef struct lgrp_ld { 263 lgrp_load_t lpl_loadavg; /* load average */ 264 uint_t lpl_ncpu; /* how many cpus */ 265 lgrp_id_t lpl_lgrpid; /* which group this lpl part of */ 266 lgrp_t *lpl_lgrp; /* ptr to lpl's lgrp */ 267 struct lgrp_ld *lpl_parent; /* lpl of parent lgrp */ 268 struct cpu *lpl_cpus; /* list of cpus in lpl */ 269 /* NULL for non-leaf lgrps */ 270 uint_t lpl_nrset; /* no. of leaf lpls for lgrp */ 271 int lpl_hint; /* where to start looking in parent */ 272 hrtime_t lpl_homed_time; /* time of last homing to this lpl */ 273 struct lgrp_ld *lpl_rset[LPL_RSET_ARRYSZ]; /* leaf lpls for lgrp */ 274 /* contains ptr to self for leaf lgrp */ 275 } lpl_t; 276 277 /* 278 * 1 << LGRP_MAX_EFFECT_SHFT == lgrp_loadavg_max_effect 279 */ 280 #define LGRP_MAX_EFFECT_SHFT 16 281 282 /* 283 * Operations handled by lgrp_config() 284 */ 285 typedef enum lgrp_config_flag { 286 LGRP_CONFIG_NOP, 287 LGRP_CONFIG_CPU_ADD, 288 LGRP_CONFIG_CPU_DEL, 289 LGRP_CONFIG_CPU_ONLINE, 290 LGRP_CONFIG_CPU_OFFLINE, 291 LGRP_CONFIG_CPUPART_ADD, 292 LGRP_CONFIG_CPUPART_DEL, 293 LGRP_CONFIG_MEM_ADD, 294 LGRP_CONFIG_MEM_DEL, 295 LGRP_CONFIG_MEM_RENAME, 296 LGRP_CONFIG_GEN_UPDATE, 297 LGRP_CONFIG_FLATTEN, 298 LGRP_CONFIG_LAT_CHANGE_ALL, 299 LGRP_CONFIG_LAT_CHANGE 300 } lgrp_config_flag_t; 301 302 /* 303 * Memory allocation policies 304 */ 305 typedef enum lgrp_mem_policy { 306 LGRP_MEM_POLICY_DEFAULT, 307 LGRP_MEM_POLICY_NEXT, /* near LWP to next touch */ 308 LGRP_MEM_POLICY_RANDOM_PROC, /* randomly across process */ 309 LGRP_MEM_POLICY_RANDOM_PSET, /* randomly across processor set */ 310 LGRP_MEM_POLICY_RANDOM, /* randomly across all lgroups */ 311 LGRP_MEM_POLICY_ROUNDROBIN, /* round robin across all lgroups */ 312 LGRP_MEM_POLICY_NEXT_CPU, /* Near next CPU to touch memory */ 313 LGRP_MEM_POLICY_NEXT_SEG, /* lgrp specified directly by seg */ 314 LGRP_NUM_MEM_POLICIES 315 } lgrp_mem_policy_t; 316 317 /* 318 * Search scopes for finding resouces 319 */ 320 typedef enum lgrp_res_ss { 321 LGRP_SRCH_LOCAL, /* Search local lgroup only */ 322 LGRP_SRCH_HIER /* Search entire hierarchy */ 323 } lgrp_res_ss_t; 324 325 /* 326 * Cookie used for lgrp mnode selection 327 */ 328 typedef struct lgrp_mnode_cookie { 329 lgrp_t *lmc_lgrp; /* lgrp under consideration */ 330 mnodeset_t lmc_nodes; /* nodes not yet tried in lgrp */ 331 int lmc_cnt; /* how many nodes in untried set */ 332 mnodeset_t lmc_tried; /* nodes already tried */ 333 int lmc_ntried; /* how many nodes in tried set */ 334 lgrp_res_ss_t lmc_scope; /* consider non-local nodes? */ 335 ushort_t lmc_rand; /* a "random" number */ 336 } lgrp_mnode_cookie_t; 337 338 /* 339 * Information needed to implement memory allocation policy 340 */ 341 typedef struct lgrp_mem_policy_info { 342 int mem_policy; /* memory allocation policy */ 343 lgrp_id_t mem_lgrpid; /* lgroup id */ 344 } lgrp_mem_policy_info_t; 345 346 /* 347 * Shared memory policy segment 348 */ 349 typedef struct lgrp_shm_policy_seg { 350 u_offset_t shm_off; /* offset into shared object */ 351 size_t shm_size; /* size of segment */ 352 lgrp_mem_policy_info_t shm_policy; /* memory allocation policy */ 353 avl_node_t shm_tree; /* AVL tree */ 354 } lgrp_shm_policy_seg_t; 355 356 /* 357 * Shared memory locality info 358 */ 359 typedef struct lgrp_shm_locality { 360 size_t loc_count; /* reference count */ 361 avl_tree_t *loc_tree; /* policy segment tree */ 362 krwlock_t loc_lock; /* protects tree */ 363 } lgrp_shm_locality_t; 364 365 /* 366 * Queries that may be made to determine lgroup memory size 367 */ 368 typedef enum { 369 LGRP_MEM_SIZE_FREE, /* number of free pages */ 370 LGRP_MEM_SIZE_AVAIL, /* number of pages in phys_avail */ 371 LGRP_MEM_SIZE_INSTALL /* number of pages in phys_install */ 372 } lgrp_mem_query_t; 373 374 /* 375 * Argument for the memory copy-rename operation, contains the source and the 376 * destination platform handles. 377 */ 378 typedef struct lgrp_config_mem_rename { 379 lgrp_handle_t lmem_rename_from; 380 lgrp_handle_t lmem_rename_to; 381 } lgrp_config_mem_rename_t; 382 383 /* Macro to clear an lgroup bitmap */ 384 #define klgrpset_clear(klgrpset) \ 385 (klgrpset) = (klgrpset_t)0 386 387 /* Macro to fill an lgroup bitmap */ 388 #define klgrpset_fill(klgrpset) \ 389 (klgrpset) = (klgrpset_t)(-1) 390 391 /* Macro to add an lgroup to an lgroup bitmap */ 392 #define klgrpset_add(klgrpset, lgrpid) \ 393 (klgrpset) |= ((klgrpset_t)1 << (lgrpid)) 394 395 /* Macro to delete an lgroup from an lgroup bitmap */ 396 #define klgrpset_del(klgrpset, lgrpid) \ 397 (klgrpset) &= ~((klgrpset_t)1 << (lgrpid)) 398 399 /* Macro to copy a klgrpset into another klgrpset */ 400 #define klgrpset_copy(klgrpset_to, klgrpset_from) \ 401 (klgrpset_to) = (klgrpset_from) 402 403 /* Macro to perform an 'and' operation on a pair of lgroup bitmaps */ 404 #define klgrpset_and(klgrpset_rslt, klgrpset_arg) \ 405 (klgrpset_rslt) &= (klgrpset_arg) 406 407 /* Macro to perform an 'or' operation on a pair of lgroup bitmaps */ 408 #define klgrpset_or(klgrpset_rslt, klgrpset_arg) \ 409 (klgrpset_rslt) |= (klgrpset_arg) 410 411 /* Macro to perform a 'diff' operation on a pair of lgroup bitmaps */ 412 #define klgrpset_diff(klgrpset_rslt, klgrpset_arg) \ 413 (klgrpset_rslt) &= ~(klgrpset_arg) 414 415 /* Macro to check if an lgroup is a member of an lgrpset */ 416 #define klgrpset_ismember(klgrpset, lgrpid) \ 417 ((klgrpset) & ((klgrpset_t)1 << (lgrpid))) 418 419 /* Macro to check if an lgroup bitmap is empty */ 420 #define klgrpset_isempty(klgrpset) \ 421 ((klgrpset) == (klgrpset_t)0) 422 423 /* Macro to check if two lgrpsets intersect */ 424 #define klgrpset_intersects(klgrpset1, klgrpset2) \ 425 ((klgrpset1) & (klgrpset2)) 426 427 /* Macro to count the number of members in an lgrpset */ 428 #define klgrpset_nlgrps(klgrpset, count) \ 429 { \ 430 lgrp_id_t lgrpid; \ 431 for (lgrpid = 0, count = 0; lgrpid <= lgrp_alloc_max; lgrpid++) {\ 432 if (klgrpset_ismember(klgrpset, lgrpid)) \ 433 count++; \ 434 } \ 435 } 436 437 /* Macro to get total memory size (in bytes) of a given set of lgroups */ 438 #define klgrpset_totalsize(klgrpset, size) \ 439 { \ 440 lgrp_handle_t hand; \ 441 lgrp_id_t lgrpid; \ 442 \ 443 for (lgrpid = 0, size = 0; lgrpid <= lgrp_alloc_max; lgrpid++) {\ 444 if (klgrpset_ismember(klgrpset, lgrpid) && \ 445 lgrp_table[lgrpid]) { \ 446 hand = lgrp_table[lgrpid]->lgrp_plathand; \ 447 size += lgrp_plat_mem_size(hand, \ 448 LGRP_MEM_SIZE_AVAIL) * PAGESIZE; \ 449 } \ 450 } \ 451 } 452 453 /* 454 * Does this lgroup exist? 455 */ 456 #define LGRP_EXISTS(lgrp) \ 457 (lgrp != NULL && lgrp->lgrp_id != LGRP_NONE) 458 459 /* 460 * Initialize an lgrp_mnode_cookie 461 */ 462 #define LGRP_MNODE_COOKIE_INIT(c, lgrp, scope) \ 463 { \ 464 bzero(&(c), sizeof (lgrp_mnode_cookie_t)); \ 465 (&(c))->lmc_lgrp = lgrp; \ 466 (&(c))->lmc_nodes = lgrp->lgrp_mnodes; \ 467 (&(c))->lmc_cnt = lgrp->lgrp_nmnodes; \ 468 (&(c))->lmc_scope = scope; \ 469 (&(c))->lmc_rand = (ushort_t)gethrtime_unscaled() >> 4; \ 470 } 471 472 /* 473 * Upgrade cookie scope from LGRP_SRCH_LOCAL to LGRP_SRCH_HIER. 474 */ 475 #define LGRP_MNODE_COOKIE_UPGRADE(c) \ 476 { \ 477 ASSERT((&(c))->lmc_scope == LGRP_SRCH_LOCAL); \ 478 (&(c))->lmc_scope = LGRP_SRCH_HIER; \ 479 } 480 481 /* 482 * Macro to see whether memory allocation policy can be reapplied 483 */ 484 #define LGRP_MEM_POLICY_REAPPLICABLE(p) \ 485 (p == LGRP_MEM_POLICY_NEXT) 486 487 /* 488 * Return true if lgrp has CPU resources in the cpupart 489 */ 490 #define LGRP_CPUS_IN_PART(lgrpid, cpupart) \ 491 (cpupart->cp_lgrploads[lgrpid].lpl_ncpu > 0) 492 493 extern int lgrp_alloc_max; 494 extern lgrp_t *lgrp_table[NLGRPS_MAX]; /* indexed by lgrp_id */ 495 extern int nlgrps; /* number of lgroups in machine */ 496 extern int nlgrpsmax; /* max number of lgroups on platform */ 497 extern lgrp_gen_t lgrp_gen; /* generation of lgroup hierarchy */ 498 extern int lgrp_initialized; /* single-CPU initialization done */ 499 extern int lgrp_topo_initialized; /* lgrp topology constructed */ 500 extern lgrp_t *lgrp_root; /* root lgroup */ 501 extern unsigned int lgrp_topo_levels; 502 extern lpl_t *lpl_bootstrap; /* bootstrap lpl for non-active CPUs */ 503 504 505 /* generic interfaces */ 506 507 /* 508 * lgroup management 509 */ 510 int lgrp_optimizations(void); 511 void lgrp_init(void); 512 void lgrp_setup(void); 513 lgrp_t *lgrp_create(void); 514 void lgrp_destroy(lgrp_t *); 515 void lgrp_config(lgrp_config_flag_t, uintptr_t, uintptr_t); 516 lgrp_t *lgrp_hand_to_lgrp(lgrp_handle_t); 517 518 /* 519 * lgroup stats 520 */ 521 void lgrp_kstat_create(struct cpu *); 522 void lgrp_kstat_destroy(struct cpu *); 523 void lgrp_stat_add(lgrp_id_t, lgrp_stat_t, int64_t); 524 int64_t lgrp_stat_read(lgrp_id_t, lgrp_stat_t); 525 526 /* 527 * lgroup memory 528 */ 529 lgrp_mem_policy_t lgrp_madv_to_policy(uchar_t, size_t, int); 530 pgcnt_t lgrp_mem_size(lgrp_id_t, lgrp_mem_query_t); 531 lgrp_t *lgrp_mem_choose(struct seg *, caddr_t, size_t); 532 int lgrp_memnode_choose(lgrp_mnode_cookie_t *); 533 lgrp_mem_policy_t lgrp_mem_policy_default(size_t, int); 534 int lgrp_mnode_update(klgrpset_t, klgrpset_t *); 535 lgrp_t *lgrp_pfn_to_lgrp(pfn_t); 536 lgrp_t *lgrp_phys_to_lgrp(u_longlong_t); /* used by numat driver */ 537 int lgrp_privm_policy_set(lgrp_mem_policy_t, lgrp_mem_policy_info_t *, 538 size_t); 539 void lgrp_shm_policy_init(struct anon_map *, vnode_t *); 540 void lgrp_shm_policy_fini(struct anon_map *, vnode_t *); 541 lgrp_mem_policy_info_t *lgrp_shm_policy_get(struct anon_map *, ulong_t, 542 vnode_t *, u_offset_t); 543 int lgrp_shm_policy_set(lgrp_mem_policy_t, struct anon_map *, ulong_t, 544 vnode_t *, u_offset_t, size_t); 545 546 /* 547 * Used by numat driver 548 */ 549 int lgrp_query_cpu(processorid_t, lgrp_id_t *); 550 int lgrp_query_load(processorid_t, lgrp_load_t *); 551 552 /* 553 * lgroup thread placement 554 */ 555 lpl_t *lgrp_affinity_best(kthread_t *, struct cpupart *, lgrp_id_t, 556 boolean_t); 557 void lgrp_affinity_init(lgrp_affinity_t **); 558 void lgrp_affinity_free(lgrp_affinity_t **); 559 lpl_t *lgrp_choose(kthread_t *t, struct cpupart *); 560 lgrp_t *lgrp_home_lgrp(void); 561 lgrp_id_t lgrp_home_id(kthread_t *); 562 void lgrp_loadavg(lpl_t *, uint_t, int); 563 void lgrp_move_thread(kthread_t *, lpl_t *, int); 564 uint64_t lgrp_get_trthr_migrations(void); 565 void lgrp_update_trthr_migrations(uint64_t); 566 567 /* 568 * lgroup topology 569 */ 570 int lgrp_leaf_add(lgrp_t *, lgrp_t **, int, klgrpset_t *); 571 int lgrp_leaf_delete(lgrp_t *, lgrp_t **, int, klgrpset_t *); 572 int lgrp_rsets_empty(klgrpset_t *); 573 int lgrp_rsets_member(klgrpset_t *, lgrp_id_t); 574 int lgrp_topo_flatten(int, lgrp_t **, int, klgrpset_t *); 575 int lgrp_topo_ht_limit(void); 576 int lgrp_topo_ht_limit_default(void); 577 int lgrp_topo_ht_limit_set(int); 578 int lgrp_topo_update(lgrp_t **, int, klgrpset_t *); 579 580 /* 581 * lpl topology 582 */ 583 void lpl_topo_bootstrap(lpl_t *, int); 584 int lpl_topo_flatten(int); 585 int lpl_topo_verify(struct cpupart *); 586 587 588 /* platform interfaces */ 589 void lgrp_plat_init(void); 590 void lgrp_plat_main_init(void); 591 lgrp_t *lgrp_plat_alloc(lgrp_id_t lgrpid); 592 void lgrp_plat_config(lgrp_config_flag_t, uintptr_t); 593 lgrp_handle_t lgrp_plat_cpu_to_hand(processorid_t); 594 lgrp_handle_t lgrp_plat_pfn_to_hand(pfn_t); 595 int lgrp_plat_max_lgrps(void); 596 pgcnt_t lgrp_plat_mem_size(lgrp_handle_t, lgrp_mem_query_t); 597 int lgrp_plat_latency(lgrp_handle_t, lgrp_handle_t); 598 lgrp_handle_t lgrp_plat_root_hand(void); 599 void lgrp_plat_probe(void); 600 601 extern uint32_t lgrp_expand_proc_thresh; 602 extern uint32_t lgrp_expand_proc_diff; 603 extern pgcnt_t lgrp_mem_free_thresh; 604 extern uint32_t lgrp_loadavg_tolerance; 605 extern uint32_t lgrp_loadavg_max_effect; 606 extern uint32_t lgrp_load_thresh; 607 extern lgrp_mem_policy_t lgrp_mem_policy_root; 608 609 #endif /* _KERNEL && _KMEMUSER */ 610 611 #ifdef __cplusplus 612 } 613 #endif 614 615 #endif /* _LGRP_H */ 616