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 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* 27 * UNIX machine dependent virtual memory support. 28 */ 29 30 #ifndef _VM_DEP_H 31 #define _VM_DEP_H 32 33 #pragma ident "%Z%%M% %I% %E% SMI" 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 #include <vm/hat_sfmmu.h> 40 #include <sys/archsystm.h> 41 #include <sys/memnode.h> 42 43 #define GETTICK() gettick() 44 /* 45 * Do not use this function for obtaining clock tick. This 46 * is called by callers who do not need to have a guarenteed 47 * correct tick value. The proper routine to use is tsc_read(). 48 */ 49 #define randtick() gettick() 50 51 /* 52 * Per page size free lists. Allocated dynamically. 53 */ 54 #define MAX_MEM_TYPES 2 /* 0 = reloc, 1 = noreloc */ 55 #define MTYPE_RELOC 0 56 #define MTYPE_NORELOC 1 57 58 #define PP_2_MTYPE(pp) (PP_ISNORELOC(pp) ? MTYPE_NORELOC : MTYPE_RELOC) 59 60 #define MTYPE_INIT(mtype, vp, vaddr, flags, pgsz) \ 61 mtype = (flags & PG_NORELOC) ? MTYPE_NORELOC : MTYPE_RELOC; 62 63 /* mtype init for page_get_replacement_page */ 64 #define MTYPE_PGR_INIT(mtype, flags, pp, mnode, pgcnt) \ 65 mtype = (flags & PG_NORELOC) ? MTYPE_NORELOC : MTYPE_RELOC; 66 67 #define MNODETYPE_2_PFN(mnode, mtype, pfnlo, pfnhi) \ 68 ASSERT(mtype != MTYPE_NORELOC); \ 69 pfnlo = mem_node_config[mnode].physbase; \ 70 pfnhi = mem_node_config[mnode].physmax; 71 72 /* 73 * candidate counters in vm_pagelist.c are indexed by color and range 74 */ 75 #define MAX_MNODE_MRANGES MAX_MEM_TYPES 76 #define MNODE_RANGE_CNT(mnode) MAX_MNODE_MRANGES 77 #define MNODE_MAX_MRANGE(mnode) (MAX_MEM_TYPES - 1) 78 #define MTYPE_2_MRANGE(mnode, mtype) (mtype) 79 80 /* 81 * Internal PG_ flags. 82 */ 83 #define PGI_RELOCONLY 0x10000 /* acts in the opposite sense to PG_NORELOC */ 84 #define PGI_NOCAGE 0x20000 /* indicates Cage is disabled */ 85 #define PGI_PGCPHIPRI 0x40000 /* page_get_contig_page priority allocation */ 86 #define PGI_PGCPSZC0 0x80000 /* relocate base pagesize page */ 87 88 /* 89 * PGI mtype flags - should not overlap PGI flags 90 */ 91 #define PGI_MT_RANGE 0x1000000 /* mtype range */ 92 #define PGI_MT_NEXT 0x2000000 /* get next mtype */ 93 94 extern page_t ***page_freelists[MMU_PAGE_SIZES][MAX_MEM_TYPES]; 95 extern page_t ***page_cachelists[MAX_MEM_TYPES]; 96 97 #define PAGE_FREELISTS(mnode, szc, color, mtype) \ 98 (*(page_freelists[szc][mtype][mnode] + (color))) 99 100 #define PAGE_CACHELISTS(mnode, color, mtype) \ 101 (*(page_cachelists[mtype][mnode] + (color))) 102 103 /* 104 * There are 'page_colors' colors/bins. Spread them out under a 105 * couple of locks. There are mutexes for both the page freelist 106 * and the page cachelist. We want enough locks to make contention 107 * reasonable, but not too many -- otherwise page_freelist_lock() gets 108 * so expensive that it becomes the bottleneck! 109 */ 110 #define NPC_MUTEX 16 111 112 extern kmutex_t *fpc_mutex[NPC_MUTEX]; 113 extern kmutex_t *cpc_mutex[NPC_MUTEX]; 114 115 /* 116 * Iterator provides the info needed to convert RA to PA. 117 * MEM_NODE_ITERATOR_INIT() should be called before 118 * PAGE_NEXT_PFN_FOR_COLOR() if pfn was not obtained via a previous 119 * PAGE_NEXT_PFN_FOR_COLOR() call. Iterator caches color 2 hash 120 * translations requiring initializer call if color or ceq_mask changes, 121 * even if pfn doesn't. MEM_NODE_ITERATOR_INIT() must also be called before 122 * PFN_2_COLOR() that uses a valid iterator argument. 123 */ 124 #ifdef sun4v 125 126 typedef struct mem_node_iterator { 127 uint_t mi_mnode; /* mnode in which to iterate */ 128 int mi_init; /* set to 1 when first init */ 129 int mi_last_mblock; /* last mblock visited */ 130 uint_t mi_hash_ceq_mask; /* cached copy of ceq_mask */ 131 uint_t mi_hash_color; /* cached copy of color */ 132 uint_t mi_mnode_mask; /* number of mask bits */ 133 uint_t mi_mnode_pfn_shift; /* mnode position in pfn */ 134 pfn_t mi_mblock_base; /* first valid pfn in current mblock */ 135 pfn_t mi_mblock_end; /* last valid pfn in current mblock */ 136 pfn_t mi_ra_to_pa; /* ra adjustment for current mblock */ 137 pfn_t mi_mnode_pfn_mask; /* mask to obtain mnode id bits */ 138 } mem_node_iterator_t; 139 140 #define MEM_NODE_ITERATOR_DECL(it) \ 141 mem_node_iterator_t it 142 #define MEM_NODE_ITERATOR_INIT(pfn, mnode, szc, it) \ 143 (pfn) = plat_mem_node_iterator_init((pfn), (mnode), (szc), (it), 1) 144 145 extern pfn_t plat_mem_node_iterator_init(pfn_t, int, uchar_t, 146 mem_node_iterator_t *, int); 147 extern pfn_t plat_rapfn_to_papfn(pfn_t); 148 extern int interleaved_mnodes; 149 150 #else /* sun4v */ 151 152 #define MEM_NODE_ITERATOR_DECL(it) \ 153 void *it = NULL 154 #define MEM_NODE_ITERATOR_INIT(pfn, mnode, szc, it) 155 156 #endif /* sun4v */ 157 158 /* 159 * Return the mnode limits so that hpc_counters length and base 160 * index can be determined. When interleaved_mnodes is set, we 161 * create an array only for the first mnode that exists. All other 162 * mnodes will share the array in this case. 163 * If interleaved_mnodes is not set, simply return the limits for 164 * the given mnode. 165 */ 166 #define HPM_COUNTERS_LIMITS(mnode, physbase, physmax, first) \ 167 if (!interleaved_mnodes) { \ 168 (physbase) = mem_node_config[(mnode)].physbase; \ 169 (physmax) = mem_node_config[(mnode)].physmax; \ 170 (first) = (mnode); \ 171 } else if ((first) < 0) { \ 172 mem_node_max_range(&(physbase), &(physmax)); \ 173 (first) = (mnode); \ 174 } 175 176 #define PAGE_CTRS_WRITE_LOCK(mnode) \ 177 if (!interleaved_mnodes) { \ 178 rw_enter(&page_ctrs_rwlock[(mnode)], RW_WRITER); \ 179 page_freelist_lock(mnode); \ 180 } else { \ 181 /* changing shared hpm_counters */ \ 182 int _i; \ 183 for (_i = 0; _i < max_mem_nodes; _i++) { \ 184 rw_enter(&page_ctrs_rwlock[_i], RW_WRITER); \ 185 page_freelist_lock(_i); \ 186 } \ 187 } 188 189 #define PAGE_CTRS_WRITE_UNLOCK(mnode) \ 190 if (!interleaved_mnodes) { \ 191 page_freelist_unlock(mnode); \ 192 rw_exit(&page_ctrs_rwlock[(mnode)]); \ 193 } else { \ 194 int _i; \ 195 for (_i = 0; _i < max_mem_nodes; _i++) { \ 196 page_freelist_unlock(_i); \ 197 rw_exit(&page_ctrs_rwlock[_i]); \ 198 } \ 199 } 200 201 /* 202 * cpu specific color conversion functions 203 */ 204 extern uint_t page_get_nsz_color_mask_cpu(uchar_t, uint_t); 205 #pragma weak page_get_nsz_color_mask_cpu 206 207 extern uint_t page_get_nsz_color_cpu(uchar_t, uint_t); 208 #pragma weak page_get_nsz_color_cpu 209 210 extern uint_t page_get_color_shift_cpu(uchar_t, uchar_t); 211 #pragma weak page_get_color_shift_cpu 212 213 extern uint_t page_convert_color_cpu(uint_t, uchar_t, uchar_t); 214 #pragma weak page_convert_color_cpu 215 216 extern pfn_t page_next_pfn_for_color_cpu(pfn_t, 217 uchar_t, uint_t, uint_t, uint_t, void *); 218 #pragma weak page_next_pfn_for_color_cpu 219 220 extern uint_t page_pfn_2_color_cpu(pfn_t, uchar_t, void *); 221 #pragma weak page_pfn_2_color_cpu 222 223 #define PAGE_GET_COLOR_SHIFT(szc, nszc) \ 224 ((&page_get_color_shift_cpu != NULL) ? \ 225 page_get_color_shift_cpu(szc, nszc) : \ 226 (hw_page_array[(nszc)].hp_shift - \ 227 hw_page_array[(szc)].hp_shift)) 228 229 #define PAGE_CONVERT_COLOR(ncolor, szc, nszc) \ 230 ((&page_convert_color_cpu != NULL) ? \ 231 page_convert_color_cpu(ncolor, szc, nszc) : \ 232 ((ncolor) << PAGE_GET_COLOR_SHIFT((szc), (nszc)))) 233 234 #define PFN_2_COLOR(pfn, szc, it) \ 235 ((&page_pfn_2_color_cpu != NULL) ? \ 236 page_pfn_2_color_cpu(pfn, szc, it) : \ 237 ((pfn & (hw_page_array[0].hp_colors - 1)) >> \ 238 (hw_page_array[szc].hp_shift - \ 239 hw_page_array[0].hp_shift))) 240 241 #define PNUM_SIZE(szc) \ 242 (hw_page_array[(szc)].hp_pgcnt) 243 #define PNUM_SHIFT(szc) \ 244 (hw_page_array[(szc)].hp_shift - hw_page_array[0].hp_shift) 245 #define PAGE_GET_SHIFT(szc) \ 246 (hw_page_array[(szc)].hp_shift) 247 #define PAGE_GET_PAGECOLORS(szc) \ 248 (hw_page_array[(szc)].hp_colors) 249 250 /* 251 * This macro calculates the next sequential pfn with the specified 252 * color using color equivalency mask 253 */ 254 #define PAGE_NEXT_PFN_FOR_COLOR(pfn, szc, color, ceq_mask, color_mask, it) \ 255 { \ 256 ASSERT(((color) & ~(ceq_mask)) == 0); \ 257 if (&page_next_pfn_for_color_cpu == NULL) { \ 258 uint_t pfn_shift = PAGE_BSZS_SHIFT(szc); \ 259 pfn_t spfn = pfn >> pfn_shift; \ 260 pfn_t stride = (ceq_mask) + 1; \ 261 ASSERT((((ceq_mask) + 1) & (ceq_mask)) == 0); \ 262 if (((spfn ^ (color)) & (ceq_mask)) == 0) { \ 263 pfn += stride << pfn_shift; \ 264 } else { \ 265 pfn = (spfn & ~(pfn_t)(ceq_mask)) | (color); \ 266 pfn = (pfn > spfn ? pfn : pfn + stride) << \ 267 pfn_shift; \ 268 } \ 269 } else { \ 270 pfn = page_next_pfn_for_color_cpu(pfn, szc, color, \ 271 ceq_mask, color_mask, it); \ 272 } \ 273 } 274 275 /* get the color equivalency mask for the next szc */ 276 #define PAGE_GET_NSZ_MASK(szc, mask) \ 277 ((&page_get_nsz_color_mask_cpu == NULL) ? \ 278 ((mask) >> (PAGE_GET_SHIFT((szc) + 1) - PAGE_GET_SHIFT(szc))) : \ 279 page_get_nsz_color_mask_cpu(szc, mask)) 280 281 /* get the color of the next szc */ 282 #define PAGE_GET_NSZ_COLOR(szc, color) \ 283 ((&page_get_nsz_color_cpu == NULL) ? \ 284 ((color) >> (PAGE_GET_SHIFT((szc) + 1) - PAGE_GET_SHIFT(szc))) : \ 285 page_get_nsz_color_cpu(szc, color)) 286 287 /* Find the bin for the given page if it was of size szc */ 288 #define PP_2_BIN_SZC(pp, szc) (PFN_2_COLOR(pp->p_pagenum, szc, (void *)(-1))) 289 290 #define PP_2_BIN(pp) (PP_2_BIN_SZC(pp, pp->p_szc)) 291 292 #define PP_2_MEM_NODE(pp) (PFN_2_MEM_NODE(pp->p_pagenum)) 293 294 #define PC_BIN_MUTEX(mnode, bin, flags) ((flags & PG_FREE_LIST) ? \ 295 &fpc_mutex[(bin) & (NPC_MUTEX - 1)][mnode] : \ 296 &cpc_mutex[(bin) & (NPC_MUTEX - 1)][mnode]) 297 298 #define FPC_MUTEX(mnode, i) (&fpc_mutex[i][mnode]) 299 #define CPC_MUTEX(mnode, i) (&cpc_mutex[i][mnode]) 300 301 #define PFN_BASE(pfnum, szc) (pfnum & ~((1 << PAGE_BSZS_SHIFT(szc)) - 1)) 302 303 /* 304 * this structure is used for walking free page lists 305 * controls when to split large pages into smaller pages, 306 * and when to coalesce smaller pages into larger pages 307 */ 308 typedef struct page_list_walker { 309 uint_t plw_colors; /* num of colors for szc */ 310 uint_t plw_color_mask; /* colors-1 */ 311 uint_t plw_bin_step; /* next bin: 1 or 2 */ 312 uint_t plw_count; /* loop count */ 313 uint_t plw_bin0; /* starting bin */ 314 uint_t plw_bin_marker; /* bin after initial jump */ 315 uint_t plw_bin_split_prev; /* last bin we tried to split */ 316 uint_t plw_do_split; /* set if OK to split */ 317 uint_t plw_split_next; /* next bin to split */ 318 uint_t plw_ceq_dif; /* number of different color groups */ 319 /* to check */ 320 uint_t plw_ceq_mask[MMU_PAGE_SIZES + 1]; /* color equiv mask */ 321 uint_t plw_bins[MMU_PAGE_SIZES + 1]; /* num of bins */ 322 } page_list_walker_t; 323 324 void page_list_walk_init(uchar_t szc, uint_t flags, uint_t bin, 325 int can_split, int use_ceq, page_list_walker_t *plw); 326 327 typedef char hpmctr_t; 328 329 #ifdef DEBUG 330 #define CHK_LPG(pp, szc) chk_lpg(pp, szc) 331 extern void chk_lpg(page_t *, uchar_t); 332 #else 333 #define CHK_LPG(pp, szc) 334 #endif 335 336 /* 337 * page list count per mnode and type. 338 */ 339 typedef struct { 340 pgcnt_t plc_mt_pgmax; /* max page cnt */ 341 pgcnt_t plc_mt_clpgcnt; /* cache list cnt */ 342 pgcnt_t plc_mt_flpgcnt; /* free list cnt - small pages */ 343 pgcnt_t plc_mt_lgpgcnt; /* free list cnt - large pages */ 344 #ifdef DEBUG 345 struct { 346 pgcnt_t plc_mts_pgcnt; /* per page size count */ 347 int plc_mts_colors; 348 pgcnt_t *plc_mtsc_pgcnt; /* per color bin count */ 349 } plc_mts[MMU_PAGE_SIZES]; 350 #endif 351 } plcnt_t[MAX_MEM_NODES][MAX_MEM_TYPES]; 352 353 #ifdef DEBUG 354 355 #define PLCNT_SZ(ctrs_sz) { \ 356 int szc; \ 357 for (szc = 0; szc < mmu_page_sizes; szc++) { \ 358 int colors = page_get_pagecolors(szc); \ 359 ctrs_sz += (max_mem_nodes * MAX_MEM_TYPES * \ 360 colors * sizeof (pgcnt_t)); \ 361 } \ 362 } 363 364 #define PLCNT_INIT(base) { \ 365 int mn, mt, szc, colors; \ 366 for (szc = 0; szc < mmu_page_sizes; szc++) { \ 367 colors = page_get_pagecolors(szc); \ 368 for (mn = 0; mn < max_mem_nodes; mn++) { \ 369 for (mt = 0; mt < MAX_MEM_TYPES; mt++) { \ 370 plcnt[mn][mt].plc_mts[szc]. \ 371 plc_mts_colors = colors; \ 372 plcnt[mn][mt].plc_mts[szc]. \ 373 plc_mtsc_pgcnt = (pgcnt_t *)base; \ 374 base += (colors * sizeof (pgcnt_t)); \ 375 } \ 376 } \ 377 } \ 378 } 379 380 #define PLCNT_DO(pp, mn, mtype, szc, cnt, flags) { \ 381 int bin = PP_2_BIN(pp); \ 382 if (flags & PG_CACHE_LIST) \ 383 atomic_add_long(&plcnt[mn][mtype].plc_mt_clpgcnt, cnt); \ 384 else if (szc) \ 385 atomic_add_long(&plcnt[mn][mtype].plc_mt_lgpgcnt, cnt); \ 386 else \ 387 atomic_add_long(&plcnt[mn][mtype].plc_mt_flpgcnt, cnt); \ 388 atomic_add_long(&plcnt[mn][mtype].plc_mts[szc].plc_mts_pgcnt, \ 389 cnt); \ 390 atomic_add_long(&plcnt[mn][mtype].plc_mts[szc]. \ 391 plc_mtsc_pgcnt[bin], cnt); \ 392 } 393 394 #else 395 396 #define PLCNT_SZ(ctrs_sz) 397 398 #define PLCNT_INIT(base) 399 400 /* PG_FREE_LIST may not be explicitly set in flags for large pages */ 401 402 #define PLCNT_DO(pp, mn, mtype, szc, cnt, flags) { \ 403 if (flags & PG_CACHE_LIST) \ 404 atomic_add_long(&plcnt[mn][mtype].plc_mt_clpgcnt, cnt); \ 405 else if (szc) \ 406 atomic_add_long(&plcnt[mn][mtype].plc_mt_lgpgcnt, cnt); \ 407 else \ 408 atomic_add_long(&plcnt[mn][mtype].plc_mt_flpgcnt, cnt); \ 409 } 410 411 #endif 412 413 #define PLCNT_INCR(pp, mn, mtype, szc, flags) { \ 414 long cnt = (1 << PAGE_BSZS_SHIFT(szc)); \ 415 PLCNT_DO(pp, mn, mtype, szc, cnt, flags); \ 416 } 417 418 #define PLCNT_DECR(pp, mn, mtype, szc, flags) { \ 419 long cnt = ((-1) << PAGE_BSZS_SHIFT(szc)); \ 420 PLCNT_DO(pp, mn, mtype, szc, cnt, flags); \ 421 } 422 423 /* 424 * macros to update page list max counts - done when pages transferred 425 * from RELOC to NORELOC mtype (kcage_init or kcage_assimilate_page). 426 */ 427 428 #define PLCNT_XFER_NORELOC(pp) { \ 429 long cnt = (1 << PAGE_BSZS_SHIFT((pp)->p_szc)); \ 430 int mn = PP_2_MEM_NODE(pp); \ 431 atomic_add_long(&plcnt[mn][MTYPE_NORELOC].plc_mt_pgmax, cnt); \ 432 atomic_add_long(&plcnt[mn][MTYPE_RELOC].plc_mt_pgmax, -cnt); \ 433 } 434 435 /* 436 * macro to modify the page list max counts when memory is added to 437 * the page lists during startup (add_physmem) or during a DR operation 438 * when memory is added (kphysm_add_memory_dynamic) or deleted 439 * (kphysm_del_cleanup). 440 */ 441 #define PLCNT_MODIFY_MAX(pfn, cnt) { \ 442 spgcnt_t _cnt = (spgcnt_t)(cnt); \ 443 pgcnt_t _acnt = ABS(_cnt); \ 444 int _mn; \ 445 pgcnt_t _np; \ 446 if (&plat_mem_node_intersect_range != NULL) { \ 447 for (_mn = 0; _mn < max_mem_nodes; _mn++) { \ 448 plat_mem_node_intersect_range((pfn), _acnt, _mn, &_np);\ 449 if (_np == 0) \ 450 continue; \ 451 atomic_add_long(&plcnt[_mn][MTYPE_RELOC].plc_mt_pgmax, \ 452 (_cnt < 0) ? -_np : _np); \ 453 } \ 454 } else { \ 455 pfn_t _pfn = (pfn); \ 456 pfn_t _endpfn = _pfn + _acnt; \ 457 while (_pfn < _endpfn) { \ 458 _mn = PFN_2_MEM_NODE(_pfn); \ 459 _np = MIN(_endpfn, mem_node_config[_mn].physmax + 1) - \ 460 _pfn; \ 461 _pfn += _np; \ 462 atomic_add_long(&plcnt[_mn][MTYPE_RELOC].plc_mt_pgmax, \ 463 (_cnt < 0) ? -_np : _np); \ 464 } \ 465 } \ 466 } 467 468 extern plcnt_t plcnt; 469 470 #define MNODE_PGCNT(mn) \ 471 (plcnt[mn][MTYPE_RELOC].plc_mt_clpgcnt + \ 472 plcnt[mn][MTYPE_NORELOC].plc_mt_clpgcnt + \ 473 plcnt[mn][MTYPE_RELOC].plc_mt_flpgcnt + \ 474 plcnt[mn][MTYPE_NORELOC].plc_mt_flpgcnt + \ 475 plcnt[mn][MTYPE_RELOC].plc_mt_lgpgcnt + \ 476 plcnt[mn][MTYPE_NORELOC].plc_mt_lgpgcnt) 477 478 #define MNODETYPE_PGCNT(mn, mtype) \ 479 (plcnt[mn][mtype].plc_mt_clpgcnt + \ 480 plcnt[mn][mtype].plc_mt_flpgcnt + \ 481 plcnt[mn][mtype].plc_mt_lgpgcnt) 482 483 /* 484 * macros to loop through the mtype range - MTYPE_START returns -1 in 485 * mtype if no pages in mnode/mtype and possibly NEXT mtype. 486 */ 487 #define MTYPE_START(mnode, mtype, flags) { \ 488 if (plcnt[mnode][mtype].plc_mt_pgmax == 0) { \ 489 ASSERT(mtype == MTYPE_RELOC || \ 490 MNODETYPE_PGCNT(mnode, mtype) == 0 || \ 491 plcnt[mnode][mtype].plc_mt_pgmax != 0); \ 492 MTYPE_NEXT(mnode, mtype, flags); \ 493 } \ 494 } 495 496 /* 497 * if allocation from the RELOC pool failed and there is sufficient cage 498 * memory, attempt to allocate from the NORELOC pool. 499 */ 500 #define MTYPE_NEXT(mnode, mtype, flags) { \ 501 if (!(flags & (PG_NORELOC | PGI_NOCAGE | PGI_RELOCONLY)) && \ 502 (kcage_freemem >= kcage_lotsfree)) { \ 503 if (plcnt[mnode][MTYPE_NORELOC].plc_mt_pgmax == 0) { \ 504 ASSERT(MNODETYPE_PGCNT(mnode, MTYPE_NORELOC) == 0 || \ 505 plcnt[mnode][MTYPE_NORELOC].plc_mt_pgmax != 0); \ 506 mtype = -1; \ 507 } else { \ 508 mtype = MTYPE_NORELOC; \ 509 flags |= PG_NORELOC; \ 510 } \ 511 } else { \ 512 mtype = -1; \ 513 } \ 514 } 515 516 /* 517 * get the ecache setsize for the current cpu. 518 */ 519 #define CPUSETSIZE() (cpunodes[CPU->cpu_id].ecache_setsize) 520 521 extern struct cpu cpu0; 522 #define CPU0 &cpu0 523 524 #define PAGE_BSZS_SHIFT(szc) TTE_BSZS_SHIFT(szc) 525 /* 526 * For sfmmu each larger page is 8 times the size of the previous 527 * size page. 528 */ 529 #define FULL_REGION_CNT(rg_szc) (8) 530 531 /* 532 * The counter base must be per page_counter element to prevent 533 * races when re-indexing, and the base page size element should 534 * be aligned on a boundary of the given region size. 535 * 536 * We also round up the number of pages spanned by the counters 537 * for a given region to PC_BASE_ALIGN in certain situations to simplify 538 * the coding for some non-performance critical routines. 539 */ 540 #define PC_BASE_ALIGN ((pfn_t)1 << PAGE_BSZS_SHIFT(mmu_page_sizes-1)) 541 #define PC_BASE_ALIGN_MASK (PC_BASE_ALIGN - 1) 542 543 extern int ecache_alignsize; 544 #define L2CACHE_ALIGN ecache_alignsize 545 #define L2CACHE_ALIGN_MAX 512 546 547 extern int update_proc_pgcolorbase_after_fork; 548 extern int consistent_coloring; 549 extern uint_t vac_colors_mask; 550 extern int vac_size; 551 extern int vac_shift; 552 553 /* 554 * Kernel mem segment in 64-bit space 555 */ 556 extern caddr_t kmem64_base, kmem64_end, kmem64_aligned_end; 557 extern int kmem64_alignsize, kmem64_szc; 558 extern uint64_t kmem64_pabase; 559 extern int max_bootlp_tteszc; 560 561 /* 562 * Maximum and default values for user heap, stack, private and shared 563 * anonymous memory, and user text and initialized data. 564 * 565 * Initial values are defined in architecture specific mach_vm_dep.c file. 566 * Used by map_pgsz*() routines. 567 */ 568 extern size_t max_uheap_lpsize; 569 extern size_t default_uheap_lpsize; 570 extern size_t max_ustack_lpsize; 571 extern size_t default_ustack_lpsize; 572 extern size_t max_privmap_lpsize; 573 extern size_t max_uidata_lpsize; 574 extern size_t max_utext_lpsize; 575 extern size_t max_shm_lpsize; 576 577 /* 578 * For adjusting the default lpsize, for DTLB-limited page sizes. 579 */ 580 extern void adjust_data_maxlpsize(size_t ismpagesize); 581 582 /* 583 * Sanity control. Don't use large pages regardless of user 584 * settings if there's less than priv or shm_lpg_min_physmem memory installed. 585 * The units for this variable are 8K pages. 586 */ 587 extern pgcnt_t privm_lpg_min_physmem; 588 extern pgcnt_t shm_lpg_min_physmem; 589 590 /* 591 * AS_2_BIN macro controls the page coloring policy. 592 * 0 (default) uses various vaddr bits 593 * 1 virtual=paddr 594 * 2 bin hopping 595 */ 596 #define AS_2_BIN(as, seg, vp, addr, bin, szc) \ 597 switch (consistent_coloring) { \ 598 default: \ 599 cmn_err(CE_WARN, \ 600 "AS_2_BIN: bad consistent coloring value"); \ 601 /* assume default algorithm -> continue */ \ 602 case 0: { \ 603 uint32_t ndx, new; \ 604 int slew = 0; \ 605 pfn_t pfn; \ 606 \ 607 if (vp != NULL && IS_SWAPVP(vp) && \ 608 seg->s_ops == &segvn_ops) \ 609 slew = as_color_bin(as); \ 610 \ 611 pfn = ((uintptr_t)addr >> MMU_PAGESHIFT) + \ 612 (((uintptr_t)addr >> page_coloring_shift) << \ 613 (vac_shift - MMU_PAGESHIFT)); \ 614 if ((szc) == 0 || &page_pfn_2_color_cpu == NULL) { \ 615 pfn += slew; \ 616 bin = PFN_2_COLOR(pfn, szc, NULL); \ 617 } else { \ 618 bin = PFN_2_COLOR(pfn, szc, NULL); \ 619 bin += slew >> (vac_shift - MMU_PAGESHIFT); \ 620 bin &= hw_page_array[(szc)].hp_colors - 1; \ 621 } \ 622 break; \ 623 } \ 624 case 1: \ 625 bin = PFN_2_COLOR(((uintptr_t)addr >> MMU_PAGESHIFT), \ 626 szc, NULL); \ 627 break; \ 628 case 2: { \ 629 int cnt = as_color_bin(as); \ 630 uint_t color_mask = page_get_pagecolors(0) - 1; \ 631 \ 632 /* make sure physical color aligns with vac color */ \ 633 while ((cnt & vac_colors_mask) != \ 634 addr_to_vcolor(addr)) { \ 635 cnt++; \ 636 } \ 637 bin = cnt = cnt & color_mask; \ 638 bin >>= PAGE_GET_COLOR_SHIFT(0, szc); \ 639 /* update per as page coloring fields */ \ 640 cnt = (cnt + 1) & color_mask; \ 641 if (cnt == (as_color_start(as) & color_mask)) { \ 642 cnt = as_color_start(as) = as_color_start(as) + \ 643 PGCLR_LOOPFACTOR; \ 644 } \ 645 as_color_bin(as) = cnt & color_mask; \ 646 break; \ 647 } \ 648 } \ 649 ASSERT(bin < page_get_pagecolors(szc)); 650 651 /* 652 * cpu private vm data - accessed thru CPU->cpu_vm_data 653 * vc_pnum_memseg: tracks last memseg visited in page_numtopp_nolock() 654 * vc_pnext_memseg: tracks last memseg visited in page_nextn() 655 * vc_kmptr: unaligned kmem pointer for this vm_cpu_data_t 656 * vc_kmsize: orignal kmem size for this vm_cpu_data_t 657 */ 658 659 typedef struct { 660 struct memseg *vc_pnum_memseg; 661 struct memseg *vc_pnext_memseg; 662 void *vc_kmptr; 663 size_t vc_kmsize; 664 } vm_cpu_data_t; 665 666 /* allocation size to ensure vm_cpu_data_t resides in its own cache line */ 667 #define VM_CPU_DATA_PADSIZE \ 668 (P2ROUNDUP(sizeof (vm_cpu_data_t), L2CACHE_ALIGN_MAX)) 669 670 /* for boot cpu before kmem is initialized */ 671 extern char vm_cpu_data0[]; 672 673 /* 674 * Function to get an ecache color bin: F(as, cnt, vcolor). 675 * the goal of this function is to: 676 * - to spread a processes' physical pages across the entire ecache to 677 * maximize its use. 678 * - to minimize vac flushes caused when we reuse a physical page on a 679 * different vac color than it was previously used. 680 * - to prevent all processes to use the same exact colors and trash each 681 * other. 682 * 683 * cnt is a bin ptr kept on a per as basis. As we page_create we increment 684 * the ptr so we spread out the physical pages to cover the entire ecache. 685 * The virtual color is made a subset of the physical color in order to 686 * in minimize virtual cache flushing. 687 * We add in the as to spread out different as. This happens when we 688 * initialize the start count value. 689 * sizeof(struct as) is 60 so we shift by 3 to get into the bit range 690 * that will tend to change. For example, on spitfire based machines 691 * (vcshft == 1) contigous as are spread bu ~6 bins. 692 * vcshft provides for proper virtual color alignment. 693 * In theory cnt should be updated using cas only but if we are off by one 694 * or 2 it is no big deal. 695 * We also keep a start value which is used to randomize on what bin we 696 * start counting when it is time to start another loop. This avoids 697 * contigous allocations of ecache size to point to the same bin. 698 * Why 3? Seems work ok. Better than 7 or anything larger. 699 */ 700 #define PGCLR_LOOPFACTOR 3 701 702 /* 703 * When a bin is empty, and we can't satisfy a color request correctly, 704 * we scan. If we assume that the programs have reasonable spatial 705 * behavior, then it will not be a good idea to use the adjacent color. 706 * Using the adjacent color would result in virtually adjacent addresses 707 * mapping into the same spot in the cache. So, if we stumble across 708 * an empty bin, skip a bunch before looking. After the first skip, 709 * then just look one bin at a time so we don't miss our cache on 710 * every look. Be sure to check every bin. Page_create() will panic 711 * if we miss a page. 712 * 713 * This also explains the `<=' in the for loops in both page_get_freelist() 714 * and page_get_cachelist(). Since we checked the target bin, skipped 715 * a bunch, then continued one a time, we wind up checking the target bin 716 * twice to make sure we get all of them bins. 717 */ 718 #define BIN_STEP 20 719 720 #ifdef VM_STATS 721 struct vmm_vmstats_str { 722 ulong_t pgf_alloc[MMU_PAGE_SIZES]; /* page_get_freelist */ 723 ulong_t pgf_allocok[MMU_PAGE_SIZES]; 724 ulong_t pgf_allocokrem[MMU_PAGE_SIZES]; 725 ulong_t pgf_allocfailed[MMU_PAGE_SIZES]; 726 ulong_t pgf_allocdeferred; 727 ulong_t pgf_allocretry[MMU_PAGE_SIZES]; 728 ulong_t pgc_alloc; /* page_get_cachelist */ 729 ulong_t pgc_allocok; 730 ulong_t pgc_allocokrem; 731 ulong_t pgc_allocokdeferred; 732 ulong_t pgc_allocfailed; 733 ulong_t pgcp_alloc[MMU_PAGE_SIZES]; /* page_get_contig_pages */ 734 ulong_t pgcp_allocfailed[MMU_PAGE_SIZES]; 735 ulong_t pgcp_allocempty[MMU_PAGE_SIZES]; 736 ulong_t pgcp_allocok[MMU_PAGE_SIZES]; 737 ulong_t ptcp[MMU_PAGE_SIZES]; /* page_trylock_contig_pages */ 738 ulong_t ptcpfreethresh[MMU_PAGE_SIZES]; 739 ulong_t ptcpfailexcl[MMU_PAGE_SIZES]; 740 ulong_t ptcpfailszc[MMU_PAGE_SIZES]; 741 ulong_t ptcpfailcage[MMU_PAGE_SIZES]; 742 ulong_t ptcpok[MMU_PAGE_SIZES]; 743 ulong_t pgmf_alloc[MMU_PAGE_SIZES]; /* page_get_mnode_freelist */ 744 ulong_t pgmf_allocfailed[MMU_PAGE_SIZES]; 745 ulong_t pgmf_allocempty[MMU_PAGE_SIZES]; 746 ulong_t pgmf_allocok[MMU_PAGE_SIZES]; 747 ulong_t pgmc_alloc; /* page_get_mnode_cachelist */ 748 ulong_t pgmc_allocfailed; 749 ulong_t pgmc_allocempty; 750 ulong_t pgmc_allocok; 751 ulong_t pladd_free[MMU_PAGE_SIZES]; /* page_list_add/sub */ 752 ulong_t plsub_free[MMU_PAGE_SIZES]; 753 ulong_t pladd_cache; 754 ulong_t plsub_cache; 755 ulong_t plsubpages_szcbig; 756 ulong_t plsubpages_szc0; 757 ulong_t pfs_req[MMU_PAGE_SIZES]; /* page_freelist_split */ 758 ulong_t pfs_demote[MMU_PAGE_SIZES]; 759 ulong_t pfc_coalok[MMU_PAGE_SIZES][MAX_MNODE_MRANGES]; 760 ulong_t ppr_reloc[MMU_PAGE_SIZES]; /* page_relocate */ 761 ulong_t ppr_relocok[MMU_PAGE_SIZES]; 762 ulong_t ppr_relocnoroot[MMU_PAGE_SIZES]; 763 ulong_t ppr_reloc_replnoroot[MMU_PAGE_SIZES]; 764 ulong_t ppr_relocnolock[MMU_PAGE_SIZES]; 765 ulong_t ppr_relocnomem[MMU_PAGE_SIZES]; 766 ulong_t ppr_krelocfail[MMU_PAGE_SIZES]; 767 ulong_t ppr_copyfail; 768 /* page coalesce counter */ 769 ulong_t page_ctrs_coalesce[MMU_PAGE_SIZES][MAX_MNODE_MRANGES]; 770 /* candidates useful */ 771 ulong_t page_ctrs_cands_skip[MMU_PAGE_SIZES][MAX_MNODE_MRANGES]; 772 /* ctrs changed after locking */ 773 ulong_t page_ctrs_changed[MMU_PAGE_SIZES][MAX_MNODE_MRANGES]; 774 /* page_freelist_coalesce failed */ 775 ulong_t page_ctrs_failed[MMU_PAGE_SIZES][MAX_MNODE_MRANGES]; 776 ulong_t page_ctrs_coalesce_all; /* page coalesce all counter */ 777 ulong_t page_ctrs_cands_skip_all; /* candidates useful for all func */ 778 }; 779 extern struct vmm_vmstats_str vmm_vmstats; 780 #endif /* VM_STATS */ 781 782 /* 783 * Used to hold off page relocations into the cage until OBP has completed 784 * its boot-time handoff of its resources to the kernel. 785 */ 786 extern int page_relocate_ready; 787 788 /* 789 * cpu/mmu-dependent vm variables may be reset at bootup. 790 */ 791 extern uint_t mmu_page_sizes; 792 extern uint_t max_mmu_page_sizes; 793 extern uint_t mmu_hashcnt; 794 extern uint_t max_mmu_hashcnt; 795 extern size_t mmu_ism_pagesize; 796 extern int mmu_exported_pagesize_mask; 797 extern uint_t mmu_exported_page_sizes; 798 extern uint_t szc_2_userszc[]; 799 extern uint_t userszc_2_szc[]; 800 801 #define mmu_legacy_page_sizes mmu_exported_page_sizes 802 #define USERSZC_2_SZC(userszc) (userszc_2_szc[userszc]) 803 #define SZC_2_USERSZC(szc) (szc_2_userszc[szc]) 804 805 /* 806 * Platform specific page routines 807 */ 808 extern void mach_page_add(page_t **, page_t *); 809 extern void mach_page_sub(page_t **, page_t *); 810 extern uint_t page_get_pagecolors(uint_t); 811 extern void ppcopy_kernel__relocatable(page_t *, page_t *); 812 #define ppcopy_kernel(p1, p2) ppcopy_kernel__relocatable(p1, p2) 813 814 /* 815 * platform specific large pages for kernel heap support 816 */ 817 extern size_t get_segkmem_lpsize(size_t lpsize); 818 extern size_t mmu_get_kernel_lpsize(size_t lpsize); 819 extern void mmu_init_kernel_pgsz(struct hat *hat); 820 extern void mmu_init_kcontext(); 821 extern uint64_t kcontextreg; 822 823 /* 824 * Nucleus data page allocator routines 825 */ 826 extern void ndata_alloc_init(struct memlist *, uintptr_t, uintptr_t); 827 extern void *ndata_alloc(struct memlist *, size_t, size_t); 828 extern void *ndata_extra_base(struct memlist *, size_t, caddr_t); 829 extern size_t ndata_maxsize(struct memlist *); 830 extern size_t ndata_spare(struct memlist *, size_t, size_t); 831 832 #ifdef __cplusplus 833 } 834 #endif 835 836 #endif /* _VM_DEP_H */ 837