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 2006 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 /* 46 * Per page size free lists. Allocated dynamically. 47 */ 48 #define MAX_MEM_TYPES 2 /* 0 = reloc, 1 = noreloc */ 49 #define MTYPE_RELOC 0 50 #define MTYPE_NORELOC 1 51 52 #define PP_2_MTYPE(pp) (PP_ISNORELOC(pp) ? MTYPE_NORELOC : MTYPE_RELOC) 53 54 #define MTYPE_INIT(mtype, vp, vaddr, flags, pgsz) \ 55 mtype = (flags & PG_NORELOC) ? MTYPE_NORELOC : MTYPE_RELOC; 56 57 /* mtype init for page_get_replacement_page */ 58 59 #define MTYPE_PGR_INIT(mtype, flags, pp, mnode, pgcnt) \ 60 mtype = (flags & PG_NORELOC) ? MTYPE_NORELOC : MTYPE_RELOC; 61 62 #define MNODETYPE_2_PFN(mnode, mtype, pfnlo, pfnhi) \ 63 ASSERT(mtype != MTYPE_NORELOC); \ 64 pfnlo = mem_node_config[mnode].physbase; \ 65 pfnhi = mem_node_config[mnode].physmax; 66 67 /* 68 * Internal PG_ flags. 69 */ 70 #define PGI_RELOCONLY 0x10000 /* acts in the opposite sense to PG_NORELOC */ 71 #define PGI_NOCAGE 0x20000 /* indicates Cage is disabled */ 72 #define PGI_PGCPHIPRI 0x40000 /* page_get_contig_page priority allocation */ 73 #define PGI_PGCPSZC0 0x80000 /* relocate base pagesize page */ 74 75 /* 76 * PGI mtype flags - should not overlap PGI flags 77 */ 78 #define PGI_MT_RANGE 0x1000000 /* mtype range */ 79 #define PGI_MT_NEXT 0x2000000 /* get next mtype */ 80 81 extern page_t ***page_freelists[MMU_PAGE_SIZES][MAX_MEM_TYPES]; 82 extern page_t ***page_cachelists[MAX_MEM_TYPES]; 83 84 #define PAGE_FREELISTS(mnode, szc, color, mtype) \ 85 (*(page_freelists[szc][mtype][mnode] + (color))) 86 87 #define PAGE_CACHELISTS(mnode, color, mtype) \ 88 (*(page_cachelists[mtype][mnode] + (color))) 89 90 /* 91 * There are 'page_colors' colors/bins. Spread them out under a 92 * couple of locks. There are mutexes for both the page freelist 93 * and the page cachelist. We want enough locks to make contention 94 * reasonable, but not too many -- otherwise page_freelist_lock() gets 95 * so expensive that it becomes the bottleneck! 96 */ 97 #define NPC_MUTEX 16 98 99 extern kmutex_t *fpc_mutex[NPC_MUTEX]; 100 extern kmutex_t *cpc_mutex[NPC_MUTEX]; 101 102 /* Find the bin for the given page if it was of size szc */ 103 #define PP_2_BIN_SZC(pp, szc) \ 104 (((pp->p_pagenum) & page_colors_mask) >> \ 105 (hw_page_array[szc].hp_shift - hw_page_array[0].hp_shift)) 106 107 #define PP_2_BIN(pp) (PP_2_BIN_SZC(pp, pp->p_szc)) 108 109 #define PP_2_MEM_NODE(pp) (PFN_2_MEM_NODE(pp->p_pagenum)) 110 111 #define PC_BIN_MUTEX(mnode, bin, flags) ((flags & PG_FREE_LIST) ? \ 112 &fpc_mutex[(bin) & (NPC_MUTEX - 1)][mnode] : \ 113 &cpc_mutex[(bin) & (NPC_MUTEX - 1)][mnode]) 114 115 #define FPC_MUTEX(mnode, i) (&fpc_mutex[i][mnode]) 116 #define CPC_MUTEX(mnode, i) (&cpc_mutex[i][mnode]) 117 118 #define PFN_BASE(pfnum, szc) (pfnum & ~((1 << PAGE_BSZS_SHIFT(szc)) - 1)) 119 120 typedef char hpmctr_t; 121 122 #ifdef DEBUG 123 #define CHK_LPG(pp, szc) chk_lpg(pp, szc) 124 extern void chk_lpg(page_t *, uchar_t); 125 #else 126 #define CHK_LPG(pp, szc) 127 #endif 128 129 /* 130 * page list count per mnode and type. 131 */ 132 typedef struct { 133 pgcnt_t plc_mt_pgmax; /* max page cnt */ 134 pgcnt_t plc_mt_clpgcnt; /* cache list cnt */ 135 pgcnt_t plc_mt_flpgcnt; /* free list cnt - small pages */ 136 pgcnt_t plc_mt_lgpgcnt; /* free list cnt - large pages */ 137 #ifdef DEBUG 138 struct { 139 pgcnt_t plc_mts_pgcnt; /* per page size count */ 140 int plc_mts_colors; 141 pgcnt_t *plc_mtsc_pgcnt; /* per color bin count */ 142 } plc_mts[MMU_PAGE_SIZES]; 143 #endif 144 } plcnt_t[MAX_MEM_NODES][MAX_MEM_TYPES]; 145 146 #ifdef DEBUG 147 148 #define PLCNT_SZ(ctrs_sz) { \ 149 int szc; \ 150 for (szc = 0; szc <= mmu_page_sizes; szc++) { \ 151 int colors = page_get_pagecolors(szc); \ 152 ctrs_sz += (max_mem_nodes * MAX_MEM_TYPES * \ 153 colors * sizeof (pgcnt_t)); \ 154 } \ 155 } 156 157 #define PLCNT_INIT(base) { \ 158 int mn, mt, szc, colors; \ 159 for (szc = 0; szc < mmu_page_sizes; szc++) { \ 160 colors = page_get_pagecolors(szc); \ 161 for (mn = 0; mn < max_mem_nodes; mn++) { \ 162 for (mt = 0; mt < MAX_MEM_TYPES; mt++) { \ 163 plcnt[mn][mt].plc_mts[szc]. \ 164 plc_mts_colors = colors; \ 165 plcnt[mn][mt].plc_mts[szc]. \ 166 plc_mtsc_pgcnt = (pgcnt_t *)base; \ 167 base += (colors * sizeof (pgcnt_t)); \ 168 } \ 169 } \ 170 } \ 171 } 172 173 #define PLCNT_DO(pp, mn, mtype, szc, cnt, flags) { \ 174 int bin = PP_2_BIN(pp); \ 175 if (flags & PG_CACHE_LIST) \ 176 atomic_add_long(&plcnt[mn][mtype].plc_mt_clpgcnt, cnt); \ 177 else if (szc) \ 178 atomic_add_long(&plcnt[mn][mtype].plc_mt_lgpgcnt, cnt); \ 179 else \ 180 atomic_add_long(&plcnt[mn][mtype].plc_mt_flpgcnt, cnt); \ 181 atomic_add_long(&plcnt[mn][mtype].plc_mts[szc].plc_mts_pgcnt, \ 182 cnt); \ 183 atomic_add_long(&plcnt[mn][mtype].plc_mts[szc]. \ 184 plc_mtsc_pgcnt[bin], cnt); \ 185 } 186 187 #else 188 189 #define PLCNT_SZ(ctrs_sz) 190 191 #define PLCNT_INIT(base) 192 193 /* PG_FREE_LIST may not be explicitly set in flags for large pages */ 194 195 #define PLCNT_DO(pp, mn, mtype, szc, cnt, flags) { \ 196 if (flags & PG_CACHE_LIST) \ 197 atomic_add_long(&plcnt[mn][mtype].plc_mt_clpgcnt, cnt); \ 198 else if (szc) \ 199 atomic_add_long(&plcnt[mn][mtype].plc_mt_lgpgcnt, cnt); \ 200 else \ 201 atomic_add_long(&plcnt[mn][mtype].plc_mt_flpgcnt, cnt); \ 202 } 203 204 #endif 205 206 #define PLCNT_INCR(pp, mn, mtype, szc, flags) { \ 207 long cnt = (1 << PAGE_BSZS_SHIFT(szc)); \ 208 PLCNT_DO(pp, mn, mtype, szc, cnt, flags); \ 209 } 210 211 #define PLCNT_DECR(pp, mn, mtype, szc, flags) { \ 212 long cnt = ((-1) << PAGE_BSZS_SHIFT(szc)); \ 213 PLCNT_DO(pp, mn, mtype, szc, cnt, flags); \ 214 } 215 216 /* 217 * macros to update page list max counts - done when pages transferred 218 * from RELOC to NORELOC mtype (kcage_init or kcage_assimilate_page). 219 */ 220 221 #define PLCNT_XFER_NORELOC(pp) { \ 222 long cnt = (1 << PAGE_BSZS_SHIFT((pp)->p_szc)); \ 223 int mn = PP_2_MEM_NODE(pp); \ 224 atomic_add_long(&plcnt[mn][MTYPE_NORELOC].plc_mt_pgmax, cnt); \ 225 atomic_add_long(&plcnt[mn][MTYPE_RELOC].plc_mt_pgmax, -cnt); \ 226 } 227 228 /* 229 * macro to modify the page list max counts when memory is added to 230 * the page lists during startup (add_physmem) or during a DR operation 231 * when memory is added (kphysm_add_memory_dynamic) or deleted 232 * (kphysm_del_cleanup). 233 */ 234 #define PLCNT_MODIFY_MAX(pfn, cnt) { \ 235 int mn = PFN_2_MEM_NODE(pfn); \ 236 atomic_add_long(&plcnt[mn][MTYPE_RELOC].plc_mt_pgmax, (cnt)); \ 237 } 238 239 extern plcnt_t plcnt; 240 241 #define MNODE_PGCNT(mn) \ 242 (plcnt[mn][MTYPE_RELOC].plc_mt_clpgcnt + \ 243 plcnt[mn][MTYPE_NORELOC].plc_mt_clpgcnt + \ 244 plcnt[mn][MTYPE_RELOC].plc_mt_flpgcnt + \ 245 plcnt[mn][MTYPE_NORELOC].plc_mt_flpgcnt + \ 246 plcnt[mn][MTYPE_RELOC].plc_mt_lgpgcnt + \ 247 plcnt[mn][MTYPE_NORELOC].plc_mt_lgpgcnt) 248 249 #define MNODETYPE_PGCNT(mn, mtype) \ 250 (plcnt[mn][mtype].plc_mt_clpgcnt + \ 251 plcnt[mn][mtype].plc_mt_flpgcnt + \ 252 plcnt[mn][mtype].plc_mt_lgpgcnt) 253 254 /* 255 * macros to loop through the mtype range - MTYPE_START returns -1 in 256 * mtype if no pages in mnode/mtype and possibly NEXT mtype. 257 */ 258 #define MTYPE_START(mnode, mtype, flags) { \ 259 if (plcnt[mnode][mtype].plc_mt_pgmax == 0) { \ 260 ASSERT(MNODETYPE_PGCNT(mnode, mtype) == 0); \ 261 MTYPE_NEXT(mnode, mtype, flags); \ 262 } \ 263 } 264 265 /* 266 * if allocation from the RELOC pool failed and there is sufficient cage 267 * memory, attempt to allocate from the NORELOC pool. 268 */ 269 #define MTYPE_NEXT(mnode, mtype, flags) { \ 270 if (!(flags & (PG_NORELOC | PGI_NOCAGE | PGI_RELOCONLY)) && \ 271 (kcage_freemem >= kcage_lotsfree)) { \ 272 if (plcnt[mnode][MTYPE_NORELOC].plc_mt_pgmax == 0) { \ 273 ASSERT(MNODETYPE_PGCNT(mnode, MTYPE_NORELOC) == 0); \ 274 mtype = -1; \ 275 } else { \ 276 mtype = MTYPE_NORELOC; \ 277 flags |= PG_NORELOC; \ 278 } \ 279 } else { \ 280 mtype = -1; \ 281 } \ 282 } 283 284 /* 285 * get the ecache setsize for the current cpu. 286 */ 287 #define CPUSETSIZE() (cpunodes[CPU->cpu_id].ecache_setsize) 288 289 extern struct cpu cpu0; 290 #define CPU0 &cpu0 291 292 #define PAGE_BSZS_SHIFT(szc) TTE_BSZS_SHIFT(szc) 293 /* 294 * For sfmmu each larger page is 8 times the size of the previous 295 * size page. 296 */ 297 #define FULL_REGION_CNT(rg_szc) (8) 298 299 /* 300 * The counter base must be per page_counter element to prevent 301 * races when re-indexing, and the base page size element should 302 * be aligned on a boundary of the given region size. 303 * 304 * We also round up the number of pages spanned by the counters 305 * for a given region to PC_BASE_ALIGN in certain situations to simplify 306 * the coding for some non-performance critical routines. 307 */ 308 #define PC_BASE_ALIGN ((pfn_t)1 << PAGE_BSZS_SHIFT(mmu_page_sizes-1)) 309 #define PC_BASE_ALIGN_MASK (PC_BASE_ALIGN - 1) 310 311 extern int ecache_alignsize; 312 #define L2CACHE_ALIGN ecache_alignsize 313 #define L2CACHE_ALIGN_MAX 512 314 315 extern int consistent_coloring; 316 extern uint_t vac_colors_mask; 317 extern int vac_size; 318 extern int vac_shift; 319 320 /* 321 * Auto large page selection support variables. Some CPU 322 * implementations may differ from the defaults and will need 323 * to change these. 324 */ 325 extern int auto_lpg_tlb_threshold; 326 extern int auto_lpg_minszc; 327 extern int auto_lpg_maxszc; 328 extern size_t auto_lpg_heap_default; 329 extern size_t auto_lpg_stack_default; 330 extern size_t auto_lpg_va_default; 331 extern size_t auto_lpg_remap_threshold; 332 extern pgcnt_t auto_lpg_min_physmem; 333 334 /* 335 * AS_2_BIN macro controls the page coloring policy. 336 * 0 (default) uses various vaddr bits 337 * 1 virtual=paddr 338 * 2 bin hopping 339 */ 340 #define AS_2_BIN(as, seg, vp, addr, bin) \ 341 switch (consistent_coloring) { \ 342 default: \ 343 cmn_err(CE_WARN, \ 344 "AS_2_BIN: bad consistent coloring value"); \ 345 /* assume default algorithm -> continue */ \ 346 case 0: { \ 347 uint32_t ndx, new; \ 348 int slew = 0; \ 349 \ 350 if (vp != NULL && IS_SWAPVP(vp) && \ 351 seg->s_ops == &segvn_ops) \ 352 slew = as_color_bin(as); \ 353 \ 354 bin = (((uintptr_t)addr >> MMU_PAGESHIFT) + \ 355 (((uintptr_t)addr >> page_coloring_shift) << \ 356 (vac_shift - MMU_PAGESHIFT)) + slew) & \ 357 page_colors_mask; \ 358 \ 359 break; \ 360 } \ 361 case 1: \ 362 bin = ((uintptr_t)addr >> MMU_PAGESHIFT) & \ 363 page_colors_mask; \ 364 break; \ 365 case 2: { \ 366 int cnt = as_color_bin(as); \ 367 /* make sure physical color aligns with vac color */ \ 368 while ((cnt & vac_colors_mask) != \ 369 addr_to_vcolor(addr)) { \ 370 cnt++; \ 371 } \ 372 bin = cnt = cnt & page_colors_mask; \ 373 /* update per as page coloring fields */ \ 374 cnt = (cnt + 1) & page_colors_mask; \ 375 if (cnt == (as_color_start(as) & page_colors_mask)) { \ 376 cnt = as_color_start(as) = as_color_start(as) + \ 377 PGCLR_LOOPFACTOR; \ 378 } \ 379 as_color_bin(as) = cnt & page_colors_mask; \ 380 break; \ 381 } \ 382 } \ 383 ASSERT(bin <= page_colors_mask); 384 385 /* 386 * cpu private vm data - accessed thru CPU->cpu_vm_data 387 * vc_pnum_memseg: tracks last memseg visited in page_numtopp_nolock() 388 * vc_pnext_memseg: tracks last memseg visited in page_nextn() 389 * vc_kmptr: unaligned kmem pointer for this vm_cpu_data_t 390 * vc_kmsize: orignal kmem size for this vm_cpu_data_t 391 */ 392 393 typedef struct { 394 struct memseg *vc_pnum_memseg; 395 struct memseg *vc_pnext_memseg; 396 void *vc_kmptr; 397 size_t vc_kmsize; 398 } vm_cpu_data_t; 399 400 /* allocation size to ensure vm_cpu_data_t resides in its own cache line */ 401 #define VM_CPU_DATA_PADSIZE \ 402 (P2ROUNDUP(sizeof (vm_cpu_data_t), L2CACHE_ALIGN_MAX)) 403 404 /* for boot cpu before kmem is initialized */ 405 extern char vm_cpu_data0[]; 406 407 /* 408 * Function to get an ecache color bin: F(as, cnt, vcolor). 409 * the goal of this function is to: 410 * - to spread a processes' physical pages across the entire ecache to 411 * maximize its use. 412 * - to minimize vac flushes caused when we reuse a physical page on a 413 * different vac color than it was previously used. 414 * - to prevent all processes to use the same exact colors and trash each 415 * other. 416 * 417 * cnt is a bin ptr kept on a per as basis. As we page_create we increment 418 * the ptr so we spread out the physical pages to cover the entire ecache. 419 * The virtual color is made a subset of the physical color in order to 420 * in minimize virtual cache flushing. 421 * We add in the as to spread out different as. This happens when we 422 * initialize the start count value. 423 * sizeof(struct as) is 60 so we shift by 3 to get into the bit range 424 * that will tend to change. For example, on spitfire based machines 425 * (vcshft == 1) contigous as are spread bu ~6 bins. 426 * vcshft provides for proper virtual color alignment. 427 * In theory cnt should be updated using cas only but if we are off by one 428 * or 2 it is no big deal. 429 * We also keep a start value which is used to randomize on what bin we 430 * start counting when it is time to start another loop. This avoids 431 * contigous allocations of ecache size to point to the same bin. 432 * Why 3? Seems work ok. Better than 7 or anything larger. 433 */ 434 #define PGCLR_LOOPFACTOR 3 435 436 /* 437 * When a bin is empty, and we can't satisfy a color request correctly, 438 * we scan. If we assume that the programs have reasonable spatial 439 * behavior, then it will not be a good idea to use the adjacent color. 440 * Using the adjacent color would result in virtually adjacent addresses 441 * mapping into the same spot in the cache. So, if we stumble across 442 * an empty bin, skip a bunch before looking. After the first skip, 443 * then just look one bin at a time so we don't miss our cache on 444 * every look. Be sure to check every bin. Page_create() will panic 445 * if we miss a page. 446 * 447 * This also explains the `<=' in the for loops in both page_get_freelist() 448 * and page_get_cachelist(). Since we checked the target bin, skipped 449 * a bunch, then continued one a time, we wind up checking the target bin 450 * twice to make sure we get all of them bins. 451 */ 452 #define BIN_STEP 20 453 454 #ifdef VM_STATS 455 struct vmm_vmstats_str { 456 ulong_t pgf_alloc[MMU_PAGE_SIZES]; /* page_get_freelist */ 457 ulong_t pgf_allocok[MMU_PAGE_SIZES]; 458 ulong_t pgf_allocokrem[MMU_PAGE_SIZES]; 459 ulong_t pgf_allocfailed[MMU_PAGE_SIZES]; 460 ulong_t pgf_allocdeferred; 461 ulong_t pgf_allocretry[MMU_PAGE_SIZES]; 462 ulong_t pgc_alloc; /* page_get_cachelist */ 463 ulong_t pgc_allocok; 464 ulong_t pgc_allocokrem; 465 ulong_t pgc_allocokdeferred; 466 ulong_t pgc_allocfailed; 467 ulong_t pgcp_alloc[MMU_PAGE_SIZES]; /* page_get_contig_pages */ 468 ulong_t pgcp_allocfailed[MMU_PAGE_SIZES]; 469 ulong_t pgcp_allocempty[MMU_PAGE_SIZES]; 470 ulong_t pgcp_allocok[MMU_PAGE_SIZES]; 471 ulong_t ptcp[MMU_PAGE_SIZES]; /* page_trylock_contig_pages */ 472 ulong_t ptcpfreethresh[MMU_PAGE_SIZES]; 473 ulong_t ptcpfailexcl[MMU_PAGE_SIZES]; 474 ulong_t ptcpfailszc[MMU_PAGE_SIZES]; 475 ulong_t ptcpfailcage[MMU_PAGE_SIZES]; 476 ulong_t ptcpok[MMU_PAGE_SIZES]; 477 ulong_t pgmf_alloc[MMU_PAGE_SIZES]; /* page_get_mnode_freelist */ 478 ulong_t pgmf_allocfailed[MMU_PAGE_SIZES]; 479 ulong_t pgmf_allocempty[MMU_PAGE_SIZES]; 480 ulong_t pgmf_allocok[MMU_PAGE_SIZES]; 481 ulong_t pgmc_alloc; /* page_get_mnode_cachelist */ 482 ulong_t pgmc_allocfailed; 483 ulong_t pgmc_allocempty; 484 ulong_t pgmc_allocok; 485 ulong_t pladd_free[MMU_PAGE_SIZES]; /* page_list_add/sub */ 486 ulong_t plsub_free[MMU_PAGE_SIZES]; 487 ulong_t pladd_cache; 488 ulong_t plsub_cache; 489 ulong_t plsubpages_szcbig; 490 ulong_t plsubpages_szc0; 491 ulong_t pff_req[MMU_PAGE_SIZES]; /* page_freelist_fill */ 492 ulong_t pff_demote[MMU_PAGE_SIZES]; 493 ulong_t pff_coalok[MMU_PAGE_SIZES]; 494 ulong_t ppr_reloc[MMU_PAGE_SIZES]; /* page_relocate */ 495 ulong_t ppr_relocok[MMU_PAGE_SIZES]; 496 ulong_t ppr_relocnoroot[MMU_PAGE_SIZES]; 497 ulong_t ppr_reloc_replnoroot[MMU_PAGE_SIZES]; 498 ulong_t ppr_relocnolock[MMU_PAGE_SIZES]; 499 ulong_t ppr_relocnomem[MMU_PAGE_SIZES]; 500 ulong_t ppr_krelocfail[MMU_PAGE_SIZES]; 501 ulong_t page_ctrs_coalesce; /* page coalesce counter */ 502 ulong_t page_ctrs_cands_skip; /* candidates useful */ 503 ulong_t page_ctrs_changed; /* ctrs changed after locking */ 504 ulong_t page_ctrs_failed; /* page_freelist_coalesce failed */ 505 ulong_t page_ctrs_coalesce_all; /* page coalesce all counter */ 506 ulong_t page_ctrs_cands_skip_all; /* candidates useful for all func */ 507 }; 508 extern struct vmm_vmstats_str vmm_vmstats; 509 #endif /* VM_STATS */ 510 511 /* 512 * Used to hold off page relocations into the cage until OBP has completed 513 * its boot-time handoff of its resources to the kernel. 514 */ 515 extern int page_relocate_ready; 516 517 /* 518 * cpu/mmu-dependent vm variables may be reset at bootup. 519 */ 520 extern uint_t mmu_page_sizes; 521 extern uint_t max_mmu_page_sizes; 522 extern uint_t mmu_hashcnt; 523 extern uint_t max_mmu_hashcnt; 524 extern size_t mmu_ism_pagesize; 525 extern int mmu_exported_pagesize_mask; 526 extern uint_t mmu_exported_page_sizes; 527 extern uint_t szc_2_userszc[]; 528 extern uint_t userszc_2_szc[]; 529 530 #define USERSZC_2_SZC(userszc) (userszc_2_szc[userszc]) 531 #define SZC_2_USERSZC(szc) (szc_2_userszc[szc]) 532 533 /* 534 * Platform specific page routines 535 */ 536 extern void mach_page_add(page_t **, page_t *); 537 extern void mach_page_sub(page_t **, page_t *); 538 extern uint_t page_get_pagecolors(uint_t); 539 extern void ppcopy_kernel__relocatable(page_t *, page_t *); 540 #define ppcopy_kernel(p1, p2) ppcopy_kernel__relocatable(p1, p2) 541 542 /* 543 * platform specific large pages for kernel heap support 544 */ 545 extern size_t get_segkmem_lpsize(size_t lpsize); 546 extern size_t mmu_get_kernel_lpsize(size_t lpsize); 547 extern void mmu_init_kernel_pgsz(struct hat *hat); 548 extern void mmu_init_kcontext(); 549 extern uint64_t kcontextreg; 550 551 #ifdef __cplusplus 552 } 553 #endif 554 555 #endif /* _VM_DEP_H */ 556