1 /* $NetBSD: uvm_extern.h,v 1.67 2001/09/15 20:36:45 chs Exp $ */ 2 3 /* 4 * 5 * Copyright (c) 1997 Charles D. Cranor and Washington University. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Charles D. Cranor and 19 * Washington University. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 * 34 * from: Id: uvm_extern.h,v 1.1.2.21 1998/02/07 01:16:53 chs Exp 35 */ 36 37 /*- 38 * Copyright (c) 1991, 1992, 1993 39 * The Regents of the University of California. All rights reserved. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. All advertising materials mentioning features or use of this software 50 * must display the following acknowledgement: 51 * This product includes software developed by the University of 52 * California, Berkeley and its contributors. 53 * 4. Neither the name of the University nor the names of its contributors 54 * may be used to endorse or promote products derived from this software 55 * without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 58 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 59 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 60 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 61 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 62 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 63 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 64 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 65 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 67 * SUCH DAMAGE. 68 * 69 * @(#)vm_extern.h 8.5 (Berkeley) 5/3/95 70 */ 71 72 #ifndef _UVM_UVM_EXTERN_H_ 73 #define _UVM_UVM_EXTERN_H_ 74 75 /* 76 * uvm_extern.h: this file defines the external interface to the VM system. 77 * 78 * this should be the only file included by non-VM parts of the kernel 79 * which need access to VM services. if you want to know the interface 80 * to the MI VM layer without knowing the details, this is the file to 81 * learn. 82 * 83 * NOTE: vm system calls are prototyped in syscallargs.h 84 */ 85 86 /* 87 * typedefs, necessary for standard UVM headers. 88 */ 89 90 typedef unsigned int uvm_flag_t; 91 typedef int vm_fault_t; 92 93 typedef int vm_inherit_t; /* XXX: inheritance codes */ 94 typedef off_t voff_t; /* XXX: offset within a uvm_object */ 95 96 /* 97 * defines 98 */ 99 100 /* 101 * the following defines are for uvm_map and functions which call it. 102 */ 103 104 /* protections bits */ 105 #define UVM_PROT_MASK 0x07 /* protection mask */ 106 #define UVM_PROT_NONE 0x00 /* protection none */ 107 #define UVM_PROT_ALL 0x07 /* everything */ 108 #define UVM_PROT_READ 0x01 /* read */ 109 #define UVM_PROT_WRITE 0x02 /* write */ 110 #define UVM_PROT_EXEC 0x04 /* exec */ 111 112 /* protection short codes */ 113 #define UVM_PROT_R 0x01 /* read */ 114 #define UVM_PROT_W 0x02 /* write */ 115 #define UVM_PROT_RW 0x03 /* read-write */ 116 #define UVM_PROT_X 0x04 /* exec */ 117 #define UVM_PROT_RX 0x05 /* read-exec */ 118 #define UVM_PROT_WX 0x06 /* write-exec */ 119 #define UVM_PROT_RWX 0x07 /* read-write-exec */ 120 121 /* 0x08: not used */ 122 123 /* inherit codes */ 124 #define UVM_INH_MASK 0x30 /* inherit mask */ 125 #define UVM_INH_SHARE 0x00 /* "share" */ 126 #define UVM_INH_COPY 0x10 /* "copy" */ 127 #define UVM_INH_NONE 0x20 /* "none" */ 128 #define UVM_INH_DONATE 0x30 /* "donate" << not used */ 129 130 /* 0x40, 0x80: not used */ 131 132 /* bits 0x700: max protection, 0x800: not used */ 133 134 /* bits 0x7000: advice, 0x8000: not used */ 135 /* advice: matches MADV_* from sys/mman.h */ 136 #define UVM_ADV_NORMAL 0x0 /* 'normal' */ 137 #define UVM_ADV_RANDOM 0x1 /* 'random' */ 138 #define UVM_ADV_SEQUENTIAL 0x2 /* 'sequential' */ 139 /* 0x3: will need, 0x4: dontneed */ 140 #define UVM_ADV_MASK 0x7 /* mask */ 141 142 /* mapping flags */ 143 #define UVM_FLAG_FIXED 0x010000 /* find space */ 144 #define UVM_FLAG_OVERLAY 0x020000 /* establish overlay */ 145 #define UVM_FLAG_NOMERGE 0x040000 /* don't merge map entries */ 146 #define UVM_FLAG_COPYONW 0x080000 /* set copy_on_write flag */ 147 #define UVM_FLAG_AMAPPAD 0x100000 /* for bss: pad amap to reduce malloc() */ 148 #define UVM_FLAG_TRYLOCK 0x200000 /* fail if we can not lock map */ 149 150 /* macros to extract info */ 151 #define UVM_PROTECTION(X) ((X) & UVM_PROT_MASK) 152 #define UVM_INHERIT(X) (((X) & UVM_INH_MASK) >> 4) 153 #define UVM_MAXPROTECTION(X) (((X) >> 8) & UVM_PROT_MASK) 154 #define UVM_ADVICE(X) (((X) >> 12) & UVM_ADV_MASK) 155 156 #define UVM_MAPFLAG(PROT,MAXPROT,INH,ADVICE,FLAGS) \ 157 ((MAXPROT << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS)) 158 159 /* magic offset value: offset not known(obj) or don't care(!obj) */ 160 #define UVM_UNKNOWN_OFFSET ((voff_t) -1) 161 162 /* 163 * the following defines are for uvm_km_kmemalloc's flags 164 */ 165 #define UVM_KMF_NOWAIT 0x1 /* matches M_NOWAIT */ 166 #define UVM_KMF_VALLOC 0x2 /* allocate VA only */ 167 #define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */ 168 169 /* 170 * the following defines the strategies for uvm_pagealloc_strat() 171 */ 172 #define UVM_PGA_STRAT_NORMAL 0 /* high -> low free list walk */ 173 #define UVM_PGA_STRAT_ONLY 1 /* only specified free list */ 174 #define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */ 175 176 /* 177 * flags for uvm_pagealloc_strat() 178 */ 179 #define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */ 180 #define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */ 181 182 /* 183 * the following defines are for ubc_alloc's flags 184 */ 185 #define UBC_READ 0x01 186 #define UBC_WRITE 0x02 187 #define UBC_FAULTBUSY 0x04 188 189 /* 190 * flags for uvn_findpages(). 191 */ 192 #define UFP_ALL 0x00 193 #define UFP_NOWAIT 0x01 194 #define UFP_NOALLOC 0x02 195 #define UFP_NOCACHE 0x04 196 #define UFP_NORDONLY 0x08 197 #define UFP_DIRTYONLY 0x10 198 #define UFP_BACKWARD 0x20 199 200 /* 201 * lockflags that control the locking behavior of various functions. 202 */ 203 #define UVM_LK_ENTER 0x00000001 /* map locked on entry */ 204 #define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */ 205 206 /* 207 * structures 208 */ 209 210 struct core; 211 struct mount; 212 struct pglist; 213 struct proc; 214 struct ucred; 215 struct uio; 216 struct uvm_object; 217 struct vm_anon; 218 struct vmspace; 219 struct pmap; 220 struct vnode; 221 struct pool; 222 struct simplelock; 223 struct vm_map_entry; 224 struct vm_map; 225 struct vm_page; 226 227 extern struct pool *uvm_aiobuf_pool; 228 229 /* 230 * uvmexp: global data structures that are exported to parts of the kernel 231 * other than the vm system. 232 */ 233 234 struct uvmexp { 235 /* vm_page constants */ 236 int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */ 237 int pagemask; /* page mask */ 238 int pageshift; /* page shift */ 239 240 /* vm_page counters */ 241 int npages; /* number of pages we manage */ 242 int free; /* number of free pages */ 243 int active; /* number of active pages */ 244 int inactive; /* number of pages that we free'd but may want back */ 245 int paging; /* number of pages in the process of being paged out */ 246 int wired; /* number of wired pages */ 247 248 /* 249 * Adding anything before this line will break binary compatibility 250 * with top(1) on NetBSD 1.5. 251 */ 252 253 int ncolors; /* number of page color buckets: must be p-o-2 */ 254 int colormask; /* color bucket mask */ 255 256 int zeropages; /* number of zero'd pages */ 257 int reserve_pagedaemon; /* number of pages reserved for pagedaemon */ 258 int reserve_kernel; /* number of pages reserved for kernel */ 259 int anonpages; /* number of pages used by anon pagers */ 260 int vnodepages; /* number of pages used by vnode page cache */ 261 int vtextpages; /* number of pages used by vtext vnodes */ 262 263 /* pageout params */ 264 int freemin; /* min number of free pages */ 265 int freetarg; /* target number of free pages */ 266 int inactarg; /* target number of inactive pages */ 267 int wiredmax; /* max number of wired pages */ 268 int anonmin; /* min threshold for anon pages */ 269 int vtextmin; /* min threshold for vtext pages */ 270 int vnodemin; /* min threshold for vnode pages */ 271 int anonminpct; /* min percent anon pages */ 272 int vtextminpct;/* min percent vtext pages */ 273 int vnodeminpct;/* min percent vnode pages */ 274 275 /* swap */ 276 int nswapdev; /* number of configured swap devices in system */ 277 int swpages; /* number of PAGE_SIZE'ed swap pages */ 278 int swpginuse; /* number of swap pages in use */ 279 int swpgonly; /* number of swap pages in use, not also in RAM */ 280 int nswget; /* number of times fault calls uvm_swap_get() */ 281 int nanon; /* number total of anon's in system */ 282 int nanonneeded;/* number of anons currently needed */ 283 int nfreeanon; /* number of free anon's */ 284 285 /* stat counters */ 286 int faults; /* page fault count */ 287 int traps; /* trap count */ 288 int intrs; /* interrupt count */ 289 int swtch; /* context switch count */ 290 int softs; /* software interrupt count */ 291 int syscalls; /* system calls */ 292 int pageins; /* pagein operation count */ 293 /* pageouts are in pdpageouts below */ 294 int swapins; /* swapins */ 295 int swapouts; /* swapouts */ 296 int pgswapin; /* pages swapped in */ 297 int pgswapout; /* pages swapped out */ 298 int forks; /* forks */ 299 int forks_ppwait; /* forks where parent waits */ 300 int forks_sharevm; /* forks where vmspace is shared */ 301 int pga_zerohit; /* pagealloc where zero wanted and zero 302 was available */ 303 int pga_zeromiss; /* pagealloc where zero wanted and zero 304 not available */ 305 int zeroaborts; /* number of times page zeroing was 306 aborted */ 307 int colorhit; /* pagealloc where we got optimal color */ 308 int colormiss; /* pagealloc where we didn't */ 309 310 /* fault subcounters */ 311 int fltnoram; /* number of times fault was out of ram */ 312 int fltnoanon; /* number of times fault was out of anons */ 313 int fltpgwait; /* number of times fault had to wait on a page */ 314 int fltpgrele; /* number of times fault found a released page */ 315 int fltrelck; /* number of times fault relock called */ 316 int fltrelckok; /* number of times fault relock is a success */ 317 int fltanget; /* number of times fault gets anon page */ 318 int fltanretry; /* number of times fault retrys an anon get */ 319 int fltamcopy; /* number of times fault clears "needs copy" */ 320 int fltnamap; /* number of times fault maps a neighbor anon page */ 321 int fltnomap; /* number of times fault maps a neighbor obj page */ 322 int fltlget; /* number of times fault does a locked pgo_get */ 323 int fltget; /* number of times fault does an unlocked get */ 324 int flt_anon; /* number of times fault anon (case 1a) */ 325 int flt_acow; /* number of times fault anon cow (case 1b) */ 326 int flt_obj; /* number of times fault is on object page (2a) */ 327 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 328 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 329 330 /* daemon counters */ 331 int pdwoke; /* number of times daemon woke up */ 332 int pdrevs; /* number of times daemon rev'd clock hand */ 333 int pdswout; /* number of times daemon called for swapout */ 334 int pdfreed; /* number of pages daemon freed since boot */ 335 int pdscans; /* number of pages daemon scaned since boot */ 336 int pdanscan; /* number of anonymous pages scanned by daemon */ 337 int pdobscan; /* number of object pages scanned by daemon */ 338 int pdreact; /* number of pages daemon reactivated since boot */ 339 int pdbusy; /* number of times daemon found a busy page */ 340 int pdpageouts; /* number of times daemon started a pageout */ 341 int pdpending; /* number of times daemon got a pending pagout */ 342 int pddeact; /* number of pages daemon deactivates */ 343 int pdreanon; /* anon pages reactivated due to min threshold */ 344 int pdrevnode; /* vnode pages reactivated due to min threshold */ 345 int pdrevtext; /* vtext pages reactivated due to min threshold */ 346 }; 347 348 /* 349 * The following structure is 64-bit alignment safe. New elements 350 * should only be added to the end of this structure so binary 351 * compatibility can be preserved. 352 */ 353 struct uvmexp_sysctl { 354 int64_t pagesize; 355 int64_t pagemask; 356 int64_t pageshift; 357 int64_t npages; 358 int64_t free; 359 int64_t active; 360 int64_t inactive; 361 int64_t paging; 362 int64_t wired; 363 int64_t zeropages; 364 int64_t reserve_pagedaemon; 365 int64_t reserve_kernel; 366 int64_t freemin; 367 int64_t freetarg; 368 int64_t inactarg; 369 int64_t wiredmax; 370 int64_t nswapdev; 371 int64_t swpages; 372 int64_t swpginuse; 373 int64_t swpgonly; 374 int64_t nswget; 375 int64_t nanon; 376 int64_t nanonneeded; 377 int64_t nfreeanon; 378 int64_t faults; 379 int64_t traps; 380 int64_t intrs; 381 int64_t swtch; 382 int64_t softs; 383 int64_t syscalls; 384 int64_t pageins; 385 int64_t swapins; 386 int64_t swapouts; 387 int64_t pgswapin; 388 int64_t pgswapout; 389 int64_t forks; 390 int64_t forks_ppwait; 391 int64_t forks_sharevm; 392 int64_t pga_zerohit; 393 int64_t pga_zeromiss; 394 int64_t zeroaborts; 395 int64_t fltnoram; 396 int64_t fltnoanon; 397 int64_t fltpgwait; 398 int64_t fltpgrele; 399 int64_t fltrelck; 400 int64_t fltrelckok; 401 int64_t fltanget; 402 int64_t fltanretry; 403 int64_t fltamcopy; 404 int64_t fltnamap; 405 int64_t fltnomap; 406 int64_t fltlget; 407 int64_t fltget; 408 int64_t flt_anon; 409 int64_t flt_acow; 410 int64_t flt_obj; 411 int64_t flt_prcopy; 412 int64_t flt_przero; 413 int64_t pdwoke; 414 int64_t pdrevs; 415 int64_t pdswout; 416 int64_t pdfreed; 417 int64_t pdscans; 418 int64_t pdanscan; 419 int64_t pdobscan; 420 int64_t pdreact; 421 int64_t pdbusy; 422 int64_t pdpageouts; 423 int64_t pdpending; 424 int64_t pddeact; 425 int64_t anonpages; 426 int64_t vnodepages; 427 int64_t vtextpages; 428 int64_t colorhit; 429 int64_t colormiss; 430 int64_t ncolors; 431 }; 432 433 #ifdef _KERNEL 434 extern struct uvmexp uvmexp; 435 #endif 436 437 /* 438 * Finally, bring in standard UVM headers. 439 */ 440 #include <sys/vmmeter.h> 441 #include <sys/queue.h> 442 #include <uvm/uvm_param.h> 443 #include <sys/lock.h> 444 #include <uvm/uvm_prot.h> 445 #include <uvm/uvm_page.h> 446 #include <uvm/uvm_pmap.h> 447 #include <uvm/uvm_map.h> 448 #include <uvm/uvm_fault.h> 449 #include <uvm/uvm_pager.h> 450 451 /* 452 * Shareable process virtual address space. 453 * May eventually be merged with vm_map. 454 * Several fields are temporary (text, data stuff). 455 */ 456 struct vmspace { 457 struct vm_map vm_map; /* VM address map */ 458 int vm_refcnt; /* number of references */ 459 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 460 /* we copy from vm_startcopy to the end of the structure on fork */ 461 #define vm_startcopy vm_rssize 462 segsz_t vm_rssize; /* current resident set size in pages */ 463 segsz_t vm_swrss; /* resident set size before last swap */ 464 segsz_t vm_tsize; /* text size (pages) XXX */ 465 segsz_t vm_dsize; /* data size (pages) XXX */ 466 segsz_t vm_ssize; /* stack size (pages) */ 467 caddr_t vm_taddr; /* user virtual address of text XXX */ 468 caddr_t vm_daddr; /* user virtual address of data XXX */ 469 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 470 caddr_t vm_minsaddr; /* user VA at top of stack */ 471 }; 472 473 #ifdef _KERNEL 474 475 /* 476 * the various kernel maps, owned by MD code 477 */ 478 extern struct vm_map *exec_map; 479 extern struct vm_map *kernel_map; 480 extern struct vm_map *kmem_map; 481 extern struct vm_map *mb_map; 482 extern struct vm_map *phys_map; 483 484 /* 485 * macros 486 */ 487 488 /* zalloc zeros memory, alloc does not */ 489 #define uvm_km_zalloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,TRUE) 490 #define uvm_km_alloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,FALSE) 491 492 #endif /* _KERNEL */ 493 494 #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 495 496 struct buf; 497 struct loadavg; 498 struct proc; 499 struct pmap; 500 struct vmspace; 501 struct vmtotal; 502 struct mount; 503 struct vnode; 504 struct core; 505 506 #ifdef _KERNEL 507 508 /* vm_machdep.c */ 509 void vmapbuf __P((struct buf *, vsize_t)); 510 void vunmapbuf __P((struct buf *, vsize_t)); 511 void pagemove __P((caddr_t, caddr_t, size_t)); 512 #ifndef cpu_swapin 513 void cpu_swapin __P((struct proc *)); 514 #endif 515 #ifndef cpu_swapout 516 void cpu_swapout __P((struct proc *)); 517 #endif 518 519 /* uvm_aobj.c */ 520 struct uvm_object *uao_create __P((vsize_t, int)); 521 void uao_detach __P((struct uvm_object *)); 522 void uao_detach_locked __P((struct uvm_object *)); 523 void uao_reference __P((struct uvm_object *)); 524 void uao_reference_locked __P((struct uvm_object *)); 525 526 /* uvm_bio.c */ 527 void ubc_init __P((void)); 528 void * ubc_alloc __P((struct uvm_object *, voff_t, vsize_t *, 529 int)); 530 void ubc_release __P((void *, int)); 531 void ubc_flush __P((struct uvm_object *, voff_t, voff_t)); 532 533 /* uvm_fault.c */ 534 int uvm_fault __P((struct vm_map *, vaddr_t, vm_fault_t, 535 vm_prot_t)); 536 /* handle a page fault */ 537 538 /* uvm_glue.c */ 539 #if defined(KGDB) 540 void uvm_chgkprot __P((caddr_t, size_t, int)); 541 #endif 542 void uvm_fork __P((struct proc *, struct proc *, boolean_t, 543 void *, size_t, void (*)(void *), void *)); 544 void uvm_exit __P((struct proc *)); 545 void uvm_init_limits __P((struct proc *)); 546 boolean_t uvm_kernacc __P((caddr_t, size_t, int)); 547 __dead void uvm_scheduler __P((void)) __attribute__((noreturn)); 548 void uvm_swapin __P((struct proc *)); 549 boolean_t uvm_useracc __P((caddr_t, size_t, int)); 550 int uvm_vslock __P((struct proc *, caddr_t, size_t, 551 vm_prot_t)); 552 void uvm_vsunlock __P((struct proc *, caddr_t, size_t)); 553 554 555 /* uvm_init.c */ 556 void uvm_init __P((void)); 557 558 /* uvm_io.c */ 559 int uvm_io __P((struct vm_map *, struct uio *)); 560 561 /* uvm_km.c */ 562 vaddr_t uvm_km_alloc1 __P((struct vm_map *, vsize_t, 563 boolean_t)); 564 void uvm_km_free __P((struct vm_map *, vaddr_t, vsize_t)); 565 void uvm_km_free_wakeup __P((struct vm_map *, vaddr_t, 566 vsize_t)); 567 vaddr_t uvm_km_kmemalloc __P((struct vm_map *, struct 568 uvm_object *, vsize_t, int)); 569 struct vm_map *uvm_km_suballoc __P((struct vm_map *, vaddr_t *, 570 vaddr_t *, vsize_t, int, boolean_t, 571 struct vm_map *)); 572 vaddr_t uvm_km_valloc __P((struct vm_map *, vsize_t)); 573 vaddr_t uvm_km_valloc_align __P((struct vm_map *, vsize_t, 574 vsize_t)); 575 vaddr_t uvm_km_valloc_wait __P((struct vm_map *, vsize_t)); 576 vaddr_t uvm_km_valloc_prefer_wait __P((struct vm_map *, vsize_t, 577 voff_t)); 578 vaddr_t uvm_km_alloc_poolpage1 __P((struct vm_map *, 579 struct uvm_object *, boolean_t)); 580 void uvm_km_free_poolpage1 __P((struct vm_map *, vaddr_t)); 581 582 #define uvm_km_alloc_poolpage(waitok) \ 583 uvm_km_alloc_poolpage1(kmem_map, NULL, (waitok)) 584 #define uvm_km_free_poolpage(addr) \ 585 uvm_km_free_poolpage1(kmem_map, (addr)) 586 587 /* uvm_map.c */ 588 int uvm_map __P((struct vm_map *, vaddr_t *, vsize_t, 589 struct uvm_object *, voff_t, vsize_t, 590 uvm_flag_t)); 591 int uvm_map_pageable __P((struct vm_map *, vaddr_t, 592 vaddr_t, boolean_t, int)); 593 int uvm_map_pageable_all __P((struct vm_map *, int, 594 vsize_t)); 595 boolean_t uvm_map_checkprot __P((struct vm_map *, vaddr_t, 596 vaddr_t, vm_prot_t)); 597 int uvm_map_protect __P((struct vm_map *, vaddr_t, 598 vaddr_t, vm_prot_t, boolean_t)); 599 struct vmspace *uvmspace_alloc __P((vaddr_t, vaddr_t)); 600 void uvmspace_init __P((struct vmspace *, struct pmap *, 601 vaddr_t, vaddr_t)); 602 void uvmspace_exec __P((struct proc *, vaddr_t, vaddr_t)); 603 struct vmspace *uvmspace_fork __P((struct vmspace *)); 604 void uvmspace_free __P((struct vmspace *)); 605 void uvmspace_share __P((struct proc *, struct proc *)); 606 void uvmspace_unshare __P((struct proc *)); 607 608 609 /* uvm_meter.c */ 610 void uvm_meter __P((void)); 611 int uvm_sysctl __P((int *, u_int, void *, size_t *, 612 void *, size_t, struct proc *)); 613 614 /* uvm_mmap.c */ 615 int uvm_mmap __P((struct vm_map *, vaddr_t *, vsize_t, 616 vm_prot_t, vm_prot_t, int, 617 void *, voff_t, vsize_t)); 618 619 /* uvm_page.c */ 620 struct vm_page *uvm_pagealloc_strat __P((struct uvm_object *, 621 voff_t, struct vm_anon *, int, int, int)); 622 #define uvm_pagealloc(obj, off, anon, flags) \ 623 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 624 UVM_PGA_STRAT_NORMAL, 0) 625 void uvm_pagerealloc __P((struct vm_page *, 626 struct uvm_object *, voff_t)); 627 /* Actually, uvm_page_physload takes PF#s which need their own type */ 628 void uvm_page_physload __P((paddr_t, paddr_t, paddr_t, 629 paddr_t, int)); 630 void uvm_setpagesize __P((void)); 631 632 /* uvm_pager.c */ 633 void uvm_aio_biodone1 __P((struct buf *)); 634 void uvm_aio_biodone __P((struct buf *)); 635 void uvm_aio_aiodone __P((struct buf *)); 636 637 /* uvm_pdaemon.c */ 638 void uvm_pageout __P((void *)); 639 void uvm_aiodone_daemon __P((void *)); 640 641 /* uvm_pglist.c */ 642 int uvm_pglistalloc __P((psize_t, paddr_t, paddr_t, 643 paddr_t, paddr_t, struct pglist *, int, int)); 644 void uvm_pglistfree __P((struct pglist *)); 645 646 /* uvm_swap.c */ 647 void uvm_swap_init __P((void)); 648 649 /* uvm_unix.c */ 650 int uvm_coredump __P((struct proc *, struct vnode *, 651 struct ucred *, struct core *)); 652 int uvm_grow __P((struct proc *, vaddr_t)); 653 /* should only be needed if COMPAT_NETBSD32 is defined */ 654 struct core32; 655 int uvm_coredump32 __P((struct proc *, struct vnode *, 656 struct ucred *, struct core32 *)); 657 658 /* uvm_user.c */ 659 void uvm_deallocate __P((struct vm_map *, vaddr_t, vsize_t)); 660 661 /* uvm_vnode.c */ 662 void uvm_vnp_setsize __P((struct vnode *, voff_t)); 663 void uvm_vnp_sync __P((struct mount *)); 664 struct uvm_object *uvn_attach __P((void *, vm_prot_t)); 665 void uvn_findpages __P((struct uvm_object *, voff_t, 666 int *, struct vm_page **, int)); 667 void uvm_vnp_zerorange __P((struct vnode *, off_t, size_t)); 668 669 /* kern_malloc.c */ 670 void kmeminit_nkmempages __P((void)); 671 void kmeminit __P((void)); 672 extern int nkmempages; 673 674 #endif /* _KERNEL */ 675 676 #endif /* _UVM_UVM_EXTERN_H_ */ 677