uvm_extern.h revision 1.77
1151497Sru/* $NetBSD: uvm_extern.h,v 1.77 2003/02/01 06:23:54 thorpej Exp $ */ 275584Sru 375584Sru/* 475584Sru * 575584Sru * Copyright (c) 1997 Charles D. Cranor and Washington University. 675584Sru * All rights reserved. 775584Sru * 875584Sru * Redistribution and use in source and binary forms, with or without 975584Sru * modification, are permitted provided that the following conditions 1075584Sru * are met: 1175584Sru * 1. Redistributions of source code must retain the above copyright 1275584Sru * notice, this list of conditions and the following disclaimer. 1375584Sru * 2. Redistributions in binary form must reproduce the above copyright 1475584Sru * notice, this list of conditions and the following disclaimer in the 1575584Sru * documentation and/or other materials provided with the distribution. 1675584Sru * 3. All advertising materials mentioning features or use of this software 1775584Sru * must display the following acknowledgement: 1875584Sru * This product includes software developed by Charles D. Cranor and 1975584Sru * Washington University. 2075584Sru * 4. The name of the author may not be used to endorse or promote products 2175584Sru * derived from this software without specific prior written permission. 22104862Sru * 23104862Sru * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24104862Sru * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 2575584Sru * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2675584Sru * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2775584Sru * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2875584Sru * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2975584Sru * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 3075584Sru * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3175584Sru * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 3275584Sru * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3375584Sru * 3475584Sru * from: Id: uvm_extern.h,v 1.1.2.21 1998/02/07 01:16:53 chs Exp 3575584Sru */ 3675584Sru 3775584Sru/*- 3875584Sru * Copyright (c) 1991, 1992, 1993 3975584Sru * The Regents of the University of California. All rights reserved. 4075584Sru * 4175584Sru * Redistribution and use in source and binary forms, with or without 4275584Sru * modification, are permitted provided that the following conditions 4375584Sru * are met: 4475584Sru * 1. Redistributions of source code must retain the above copyright 4575584Sru * notice, this list of conditions and the following disclaimer. 4675584Sru * 2. Redistributions in binary form must reproduce the above copyright 4775584Sru * notice, this list of conditions and the following disclaimer in the 4875584Sru * documentation and/or other materials provided with the distribution. 4975584Sru * 3. All advertising materials mentioning features or use of this software 5075584Sru * must display the following acknowledgement: 5175584Sru * This product includes software developed by the University of 5275584Sru * California, Berkeley and its contributors. 5375584Sru * 4. Neither the name of the University nor the names of its contributors 5475584Sru * may be used to endorse or promote products derived from this software 5575584Sru * without specific prior written permission. 5675584Sru * 5775584Sru * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 5875584Sru * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 5975584Sru * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 6075584Sru * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 6175584Sru * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 6275584Sru * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 6375584Sru * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 6475584Sru * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 6575584Sru * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 6675584Sru * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 6775584Sru * SUCH DAMAGE. 6875584Sru * 6975584Sru * @(#)vm_extern.h 8.5 (Berkeley) 5/3/95 7075584Sru */ 7175584Sru 7275584Sru#ifndef _UVM_UVM_EXTERN_H_ 7375584Sru#define _UVM_UVM_EXTERN_H_ 7475584Sru 7575584Sru/* 7675584Sru * uvm_extern.h: this file defines the external interface to the VM system. 7775584Sru * 7875584Sru * this should be the only file included by non-VM parts of the kernel 7975584Sru * which need access to VM services. if you want to know the interface 80104862Sru * to the MI VM layer without knowing the details, this is the file to 8175584Sru * learn. 8275584Sru * 8375584Sru * NOTE: vm system calls are prototyped in syscallargs.h 84104862Sru */ 85104862Sru 86104862Sru/* 87104862Sru * typedefs, necessary for standard UVM headers. 88104862Sru */ 89104862Sru 90104862Srutypedef unsigned int uvm_flag_t; 91104862Srutypedef int vm_fault_t; 9275584Sru 9375584Srutypedef int vm_inherit_t; /* XXX: inheritance codes */ 9475584Srutypedef off_t voff_t; /* XXX: offset within a uvm_object */ 9575584Sru 9675584Sru/* 9775584Sru * defines 9875584Sru */ 9975584Sru 10075584Sru/* 10175584Sru * the following defines are for uvm_map and functions which call it. 10275584Sru */ 10375584Sru 10475584Sru/* protections bits */ 10575584Sru#define UVM_PROT_MASK 0x07 /* protection mask */ 10675584Sru#define UVM_PROT_NONE 0x00 /* protection none */ 10775584Sru#define UVM_PROT_ALL 0x07 /* everything */ 10875584Sru#define UVM_PROT_READ 0x01 /* read */ 10975584Sru#define UVM_PROT_WRITE 0x02 /* write */ 11075584Sru#define UVM_PROT_EXEC 0x04 /* exec */ 11175584Sru 11275584Sru/* protection short codes */ 11375584Sru#define UVM_PROT_R 0x01 /* read */ 11475584Sru#define UVM_PROT_W 0x02 /* write */ 11575584Sru#define UVM_PROT_RW 0x03 /* read-write */ 11675584Sru#define UVM_PROT_X 0x04 /* exec */ 11775584Sru#define UVM_PROT_RX 0x05 /* read-exec */ 11875584Sru#define UVM_PROT_WX 0x06 /* write-exec */ 11975584Sru#define UVM_PROT_RWX 0x07 /* read-write-exec */ 12079543Sru 12179543Sru/* 0x08: not used */ 12275584Sru 12379543Sru/* inherit codes */ 12479543Sru#define UVM_INH_MASK 0x30 /* inherit mask */ 12579543Sru#define UVM_INH_SHARE 0x00 /* "share" */ 12679543Sru#define UVM_INH_COPY 0x10 /* "copy" */ 12779543Sru#define UVM_INH_NONE 0x20 /* "none" */ 12879543Sru#define UVM_INH_DONATE 0x30 /* "donate" << not used */ 12979543Sru 13079543Sru/* 0x40, 0x80: not used */ 13179543Sru 13279543Sru/* bits 0x700: max protection, 0x800: not used */ 13379543Sru 13479543Sru/* bits 0x7000: advice, 0x8000: not used */ 13579543Sru/* advice: matches MADV_* from sys/mman.h */ 13679543Sru#define UVM_ADV_NORMAL 0x0 /* 'normal' */ 13775584Sru#define UVM_ADV_RANDOM 0x1 /* 'random' */ 13875584Sru#define UVM_ADV_SEQUENTIAL 0x2 /* 'sequential' */ 13979543Sru/* 0x3: will need, 0x4: dontneed */ 14079543Sru#define UVM_ADV_MASK 0x7 /* mask */ 14175584Sru 14279543Sru/* mapping flags */ 14379543Sru#define UVM_FLAG_FIXED 0x010000 /* find space */ 14479543Sru#define UVM_FLAG_OVERLAY 0x020000 /* establish overlay */ 14579543Sru#define UVM_FLAG_NOMERGE 0x040000 /* don't merge map entries */ 14679543Sru#define UVM_FLAG_COPYONW 0x080000 /* set copy_on_write flag */ 14779543Sru#define UVM_FLAG_AMAPPAD 0x100000 /* for bss: pad amap to reduce malloc() */ 14879543Sru#define UVM_FLAG_TRYLOCK 0x200000 /* fail if we can not lock map */ 14979543Sru#define UVM_FLAG_NOWAIT 0x400000 /* not allowed to sleep */ 15079543Sru 151104862Sru/* macros to extract info */ 152104862Sru#define UVM_PROTECTION(X) ((X) & UVM_PROT_MASK) 153104862Sru#define UVM_INHERIT(X) (((X) & UVM_INH_MASK) >> 4) 15475584Sru#define UVM_MAXPROTECTION(X) (((X) >> 8) & UVM_PROT_MASK) 15575584Sru#define UVM_ADVICE(X) (((X) >> 12) & UVM_ADV_MASK) 15675584Sru 15775584Sru#define UVM_MAPFLAG(PROT,MAXPROT,INH,ADVICE,FLAGS) \ 15875584Sru ((MAXPROT << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS)) 15975584Sru 16075584Sru/* magic offset value: offset not known(obj) or don't care(!obj) */ 16175584Sru#define UVM_UNKNOWN_OFFSET ((voff_t) -1) 16275584Sru 16375584Sru/* 16475584Sru * the following defines are for uvm_km_kmemalloc's flags 16575584Sru */ 16675584Sru#define UVM_KMF_VALLOC 0x1 /* allocate VA only */ 16775584Sru#define UVM_KMF_CANFAIL 0x2 /* caller handles failure */ 16875584Sru#define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */ 16975584Sru#define UVM_KMF_NOWAIT UVM_FLAG_NOWAIT /* not allowed to sleep */ 17075584Sru 17175584Sru/* 17275584Sru * the following defines the strategies for uvm_pagealloc_strat() 17375584Sru */ 17475584Sru#define UVM_PGA_STRAT_NORMAL 0 /* high -> low free list walk */ 17575584Sru#define UVM_PGA_STRAT_ONLY 1 /* only specified free list */ 176104862Sru#define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */ 177104862Sru 17875584Sru/* 17975584Sru * flags for uvm_pagealloc_strat() 18075584Sru */ 18175584Sru#define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */ 18275584Sru#define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */ 18375584Sru 18475584Sru/* 18575584Sru * the following defines are for ubc_alloc's flags 18675584Sru */ 18775584Sru#define UBC_READ 0x01 18875584Sru#define UBC_WRITE 0x02 18975584Sru#define UBC_FAULTBUSY 0x04 19075584Sru 19175584Sru/* 19275584Sru * flags for uvn_findpages(). 19375584Sru */ 19475584Sru#define UFP_ALL 0x00 19575584Sru#define UFP_NOWAIT 0x01 19675584Sru#define UFP_NOALLOC 0x02 197104862Sru#define UFP_NOCACHE 0x04 198104862Sru#define UFP_NORDONLY 0x08 199104862Sru#define UFP_DIRTYONLY 0x10 20075584Sru#define UFP_BACKWARD 0x20 20175584Sru 20275584Sru/* 20375584Sru * lockflags that control the locking behavior of various functions. 20475584Sru */ 20575584Sru#define UVM_LK_ENTER 0x00000001 /* map locked on entry */ 20675584Sru#define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */ 20775584Sru 20875584Sru/* 20975584Sru * structures 21075584Sru */ 21175584Sru 21275584Srustruct core; 21375584Srustruct mount; 21475584Srustruct pglist; 21575584Srustruct proc; 21675584Srustruct ucred; 21775584Srustruct uio; 21875584Srustruct uvm_object; 21975584Srustruct vm_anon; 22075584Srustruct vmspace; 22175584Srustruct pmap; 22275584Srustruct vnode; 223struct pool; 224struct simplelock; 225struct vm_map_entry; 226struct vm_map; 227struct vm_page; 228 229extern struct pool *uvm_aiobuf_pool; 230 231/* 232 * uvmexp: global data structures that are exported to parts of the kernel 233 * other than the vm system. 234 */ 235 236struct uvmexp { 237 /* vm_page constants */ 238 int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */ 239 int pagemask; /* page mask */ 240 int pageshift; /* page shift */ 241 242 /* vm_page counters */ 243 int npages; /* number of pages we manage */ 244 int free; /* number of free pages */ 245 int active; /* number of active pages */ 246 int inactive; /* number of pages that we free'd but may want back */ 247 int paging; /* number of pages in the process of being paged out */ 248 int wired; /* number of wired pages */ 249 250 /* 251 * Adding anything before this line will break binary compatibility 252 * with top(1) on NetBSD 1.5. 253 */ 254 255 int ncolors; /* number of page color buckets: must be p-o-2 */ 256 int colormask; /* color bucket mask */ 257 258 int zeropages; /* number of zero'd pages */ 259 int reserve_pagedaemon; /* number of pages reserved for pagedaemon */ 260 int reserve_kernel; /* number of pages reserved for kernel */ 261 int anonpages; /* number of pages used by anon mappings */ 262 int filepages; /* number of pages used by cached file data */ 263 int execpages; /* number of pages used by cached exec date */ 264 265 /* pageout params */ 266 int freemin; /* min number of free pages */ 267 int freetarg; /* target number of free pages */ 268 int inactarg; /* target number of inactive pages */ 269 int wiredmax; /* max number of wired pages */ 270 int anonmin; /* min threshold for anon pages */ 271 int execmin; /* min threshold for executable pages */ 272 int filemin; /* min threshold for file pages */ 273 int anonminpct; /* min percent anon pages */ 274 int execminpct; /* min percent executable pages */ 275 int fileminpct; /* min percent file pages */ 276 int anonmax; /* max threshold for anon pages */ 277 int execmax; /* max threshold for executable pages */ 278 int filemax; /* max threshold for file pages */ 279 int anonmaxpct; /* max percent anon pages */ 280 int execmaxpct; /* max percent executable pages */ 281 int filemaxpct; /* max percent file pages */ 282 283 /* swap */ 284 int nswapdev; /* number of configured swap devices in system */ 285 int swpages; /* number of PAGE_SIZE'ed swap pages */ 286 int swpginuse; /* number of swap pages in use */ 287 int swpgonly; /* number of swap pages in use, not also in RAM */ 288 int nswget; /* number of times fault calls uvm_swap_get() */ 289 int nanon; /* number total of anon's in system */ 290 int nanonneeded;/* number of anons currently needed */ 291 int nfreeanon; /* number of free anon's */ 292 293 /* stat counters */ 294 int faults; /* page fault count */ 295 int traps; /* trap count */ 296 int intrs; /* interrupt count */ 297 int swtch; /* context switch count */ 298 int softs; /* software interrupt count */ 299 int syscalls; /* system calls */ 300 int pageins; /* pagein operation count */ 301 /* pageouts are in pdpageouts below */ 302 int swapins; /* swapins */ 303 int swapouts; /* swapouts */ 304 int pgswapin; /* pages swapped in */ 305 int pgswapout; /* pages swapped out */ 306 int forks; /* forks */ 307 int forks_ppwait; /* forks where parent waits */ 308 int forks_sharevm; /* forks where vmspace is shared */ 309 int pga_zerohit; /* pagealloc where zero wanted and zero 310 was available */ 311 int pga_zeromiss; /* pagealloc where zero wanted and zero 312 not available */ 313 int zeroaborts; /* number of times page zeroing was 314 aborted */ 315 int colorhit; /* pagealloc where we got optimal color */ 316 int colormiss; /* pagealloc where we didn't */ 317 318 /* fault subcounters */ 319 int fltnoram; /* number of times fault was out of ram */ 320 int fltnoanon; /* number of times fault was out of anons */ 321 int fltpgwait; /* number of times fault had to wait on a page */ 322 int fltpgrele; /* number of times fault found a released page */ 323 int fltrelck; /* number of times fault relock called */ 324 int fltrelckok; /* number of times fault relock is a success */ 325 int fltanget; /* number of times fault gets anon page */ 326 int fltanretry; /* number of times fault retrys an anon get */ 327 int fltamcopy; /* number of times fault clears "needs copy" */ 328 int fltnamap; /* number of times fault maps a neighbor anon page */ 329 int fltnomap; /* number of times fault maps a neighbor obj page */ 330 int fltlget; /* number of times fault does a locked pgo_get */ 331 int fltget; /* number of times fault does an unlocked get */ 332 int flt_anon; /* number of times fault anon (case 1a) */ 333 int flt_acow; /* number of times fault anon cow (case 1b) */ 334 int flt_obj; /* number of times fault is on object page (2a) */ 335 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 336 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 337 338 /* daemon counters */ 339 int pdwoke; /* number of times daemon woke up */ 340 int pdrevs; /* number of times daemon rev'd clock hand */ 341 int pdswout; /* number of times daemon called for swapout */ 342 int pdfreed; /* number of pages daemon freed since boot */ 343 int pdscans; /* number of pages daemon scaned since boot */ 344 int pdanscan; /* number of anonymous pages scanned by daemon */ 345 int pdobscan; /* number of object pages scanned by daemon */ 346 int pdreact; /* number of pages daemon reactivated since boot */ 347 int pdbusy; /* number of times daemon found a busy page */ 348 int pdpageouts; /* number of times daemon started a pageout */ 349 int pdpending; /* number of times daemon got a pending pagout */ 350 int pddeact; /* number of pages daemon deactivates */ 351 int pdreanon; /* anon pages reactivated due to thresholds */ 352 int pdrefile; /* file pages reactivated due to thresholds */ 353 int pdreexec; /* executable pages reactivated due to thresholds */ 354}; 355 356/* 357 * The following structure is 64-bit alignment safe. New elements 358 * should only be added to the end of this structure so binary 359 * compatibility can be preserved. 360 */ 361struct uvmexp_sysctl { 362 int64_t pagesize; 363 int64_t pagemask; 364 int64_t pageshift; 365 int64_t npages; 366 int64_t free; 367 int64_t active; 368 int64_t inactive; 369 int64_t paging; 370 int64_t wired; 371 int64_t zeropages; 372 int64_t reserve_pagedaemon; 373 int64_t reserve_kernel; 374 int64_t freemin; 375 int64_t freetarg; 376 int64_t inactarg; 377 int64_t wiredmax; 378 int64_t nswapdev; 379 int64_t swpages; 380 int64_t swpginuse; 381 int64_t swpgonly; 382 int64_t nswget; 383 int64_t nanon; 384 int64_t nanonneeded; 385 int64_t nfreeanon; 386 int64_t faults; 387 int64_t traps; 388 int64_t intrs; 389 int64_t swtch; 390 int64_t softs; 391 int64_t syscalls; 392 int64_t pageins; 393 int64_t swapins; 394 int64_t swapouts; 395 int64_t pgswapin; 396 int64_t pgswapout; 397 int64_t forks; 398 int64_t forks_ppwait; 399 int64_t forks_sharevm; 400 int64_t pga_zerohit; 401 int64_t pga_zeromiss; 402 int64_t zeroaborts; 403 int64_t fltnoram; 404 int64_t fltnoanon; 405 int64_t fltpgwait; 406 int64_t fltpgrele; 407 int64_t fltrelck; 408 int64_t fltrelckok; 409 int64_t fltanget; 410 int64_t fltanretry; 411 int64_t fltamcopy; 412 int64_t fltnamap; 413 int64_t fltnomap; 414 int64_t fltlget; 415 int64_t fltget; 416 int64_t flt_anon; 417 int64_t flt_acow; 418 int64_t flt_obj; 419 int64_t flt_prcopy; 420 int64_t flt_przero; 421 int64_t pdwoke; 422 int64_t pdrevs; 423 int64_t pdswout; 424 int64_t pdfreed; 425 int64_t pdscans; 426 int64_t pdanscan; 427 int64_t pdobscan; 428 int64_t pdreact; 429 int64_t pdbusy; 430 int64_t pdpageouts; 431 int64_t pdpending; 432 int64_t pddeact; 433 int64_t anonpages; 434 int64_t filepages; 435 int64_t execpages; 436 int64_t colorhit; 437 int64_t colormiss; 438 int64_t ncolors; 439}; 440 441#ifdef _KERNEL 442extern struct uvmexp uvmexp; 443#endif 444 445/* 446 * Finally, bring in standard UVM headers. 447 */ 448#include <sys/vmmeter.h> 449#include <sys/queue.h> 450#include <uvm/uvm_param.h> 451#include <sys/lock.h> 452#include <uvm/uvm_prot.h> 453#include <uvm/uvm_page.h> 454#include <uvm/uvm_pmap.h> 455#include <uvm/uvm_map.h> 456#include <uvm/uvm_fault.h> 457#include <uvm/uvm_pager.h> 458 459/* 460 * Shareable process virtual address space. 461 * May eventually be merged with vm_map. 462 * Several fields are temporary (text, data stuff). 463 */ 464struct vmspace { 465 struct vm_map vm_map; /* VM address map */ 466 int vm_refcnt; /* number of references */ 467 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 468/* we copy from vm_startcopy to the end of the structure on fork */ 469#define vm_startcopy vm_rssize 470 segsz_t vm_rssize; /* current resident set size in pages */ 471 segsz_t vm_swrss; /* resident set size before last swap */ 472 segsz_t vm_tsize; /* text size (pages) XXX */ 473 segsz_t vm_dsize; /* data size (pages) XXX */ 474 segsz_t vm_ssize; /* stack size (pages) */ 475 caddr_t vm_taddr; /* user virtual address of text XXX */ 476 caddr_t vm_daddr; /* user virtual address of data XXX */ 477 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 478 caddr_t vm_minsaddr; /* user VA at top of stack */ 479}; 480 481#ifdef _KERNEL 482 483/* 484 * used to keep state while iterating over the map for a core dump. 485 */ 486struct uvm_coredump_state { 487 void *cookie; /* opaque for the caller */ 488 vaddr_t start; /* start of region */ 489 vaddr_t end; /* end of region */ 490 vm_prot_t prot; /* protection of region */ 491 int flags; /* flags; see below */ 492}; 493 494#define UVM_COREDUMP_STACK 0x01 /* region is user stack */ 495#define UVM_COREDUMP_NODUMP 0x02 /* don't actually dump this region */ 496 497/* 498 * the various kernel maps, owned by MD code 499 */ 500extern struct vm_map *exec_map; 501extern struct vm_map *kernel_map; 502extern struct vm_map *kmem_map; 503extern struct vm_map *mb_map; 504extern struct vm_map *phys_map; 505 506/* 507 * macros 508 */ 509 510/* zalloc zeros memory, alloc does not */ 511#define uvm_km_zalloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,TRUE) 512#define uvm_km_alloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,FALSE) 513 514#endif /* _KERNEL */ 515 516#define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 517 518struct buf; 519struct loadavg; 520struct proc; 521struct pmap; 522struct vmspace; 523struct vmtotal; 524struct mount; 525struct vnode; 526struct core; 527 528#ifdef _KERNEL 529#include <sys/mallocvar.h> 530MALLOC_DECLARE(M_VMMAP); 531MALLOC_DECLARE(M_VMPMAP); 532 533/* vm_machdep.c */ 534void vmapbuf __P((struct buf *, vsize_t)); 535void vunmapbuf __P((struct buf *, vsize_t)); 536void pagemove __P((caddr_t, caddr_t, size_t)); 537#ifndef cpu_swapin 538void cpu_swapin __P((struct lwp *)); 539#endif 540#ifndef cpu_swapout 541void cpu_swapout __P((struct lwp *)); 542#endif 543 544/* uvm_aobj.c */ 545struct uvm_object *uao_create __P((vsize_t, int)); 546void uao_detach __P((struct uvm_object *)); 547void uao_detach_locked __P((struct uvm_object *)); 548void uao_reference __P((struct uvm_object *)); 549void uao_reference_locked __P((struct uvm_object *)); 550 551/* uvm_bio.c */ 552void ubc_init __P((void)); 553void * ubc_alloc __P((struct uvm_object *, voff_t, vsize_t *, 554 int)); 555void ubc_release __P((void *, int)); 556void ubc_flush __P((struct uvm_object *, voff_t, voff_t)); 557 558/* uvm_fault.c */ 559int uvm_fault __P((struct vm_map *, vaddr_t, vm_fault_t, 560 vm_prot_t)); 561 /* handle a page fault */ 562 563/* uvm_glue.c */ 564#if defined(KGDB) 565void uvm_chgkprot __P((caddr_t, size_t, int)); 566#endif 567void uvm_proc_fork __P((struct proc *, struct proc *, boolean_t)); 568void uvm_lwp_fork __P((struct lwp *, struct lwp *, 569 void *, size_t, void (*)(void *), void *)); 570int uvm_coredump_walkmap __P((struct proc *, 571 struct vnode *, struct ucred *, 572 int (*)(struct proc *, struct vnode *, 573 struct ucred *, 574 struct uvm_coredump_state *), void *)); 575void uvm_proc_exit __P((struct proc *)); 576void uvm_lwp_exit __P((struct lwp *)); 577void uvm_init_limits __P((struct proc *)); 578boolean_t uvm_kernacc __P((caddr_t, size_t, int)); 579__dead void uvm_scheduler __P((void)) __attribute__((noreturn)); 580void uvm_swapin __P((struct lwp *)); 581boolean_t uvm_uarea_alloc(vaddr_t *); 582void uvm_uarea_free(vaddr_t); 583boolean_t uvm_useracc __P((caddr_t, size_t, int)); 584int uvm_vslock __P((struct proc *, caddr_t, size_t, 585 vm_prot_t)); 586void uvm_vsunlock __P((struct proc *, caddr_t, size_t)); 587 588 589/* uvm_init.c */ 590void uvm_init __P((void)); 591 592/* uvm_io.c */ 593int uvm_io __P((struct vm_map *, struct uio *)); 594 595/* uvm_km.c */ 596vaddr_t uvm_km_alloc1 __P((struct vm_map *, vsize_t, 597 boolean_t)); 598void uvm_km_free __P((struct vm_map *, vaddr_t, vsize_t)); 599void uvm_km_free_wakeup __P((struct vm_map *, vaddr_t, 600 vsize_t)); 601vaddr_t uvm_km_kmemalloc __P((struct vm_map *, struct 602 uvm_object *, vsize_t, int)); 603struct vm_map *uvm_km_suballoc __P((struct vm_map *, vaddr_t *, 604 vaddr_t *, vsize_t, int, boolean_t, 605 struct vm_map *)); 606vaddr_t uvm_km_valloc __P((struct vm_map *, vsize_t)); 607vaddr_t uvm_km_valloc_align __P((struct vm_map *, vsize_t, 608 vsize_t)); 609vaddr_t uvm_km_valloc_wait __P((struct vm_map *, vsize_t)); 610vaddr_t uvm_km_valloc_prefer_wait __P((struct vm_map *, vsize_t, 611 voff_t)); 612vaddr_t uvm_km_alloc_poolpage1 __P((struct vm_map *, 613 struct uvm_object *, boolean_t)); 614void uvm_km_free_poolpage1 __P((struct vm_map *, vaddr_t)); 615 616#define uvm_km_alloc_poolpage(waitok) \ 617 uvm_km_alloc_poolpage1(kmem_map, NULL, (waitok)) 618#define uvm_km_free_poolpage(addr) \ 619 uvm_km_free_poolpage1(kmem_map, (addr)) 620 621/* uvm_map.c */ 622int uvm_map __P((struct vm_map *, vaddr_t *, vsize_t, 623 struct uvm_object *, voff_t, vsize_t, 624 uvm_flag_t)); 625int uvm_map_pageable __P((struct vm_map *, vaddr_t, 626 vaddr_t, boolean_t, int)); 627int uvm_map_pageable_all __P((struct vm_map *, int, 628 vsize_t)); 629boolean_t uvm_map_checkprot __P((struct vm_map *, vaddr_t, 630 vaddr_t, vm_prot_t)); 631int uvm_map_protect __P((struct vm_map *, vaddr_t, 632 vaddr_t, vm_prot_t, boolean_t)); 633struct vmspace *uvmspace_alloc __P((vaddr_t, vaddr_t)); 634void uvmspace_init __P((struct vmspace *, struct pmap *, 635 vaddr_t, vaddr_t)); 636void uvmspace_exec __P((struct lwp *, vaddr_t, vaddr_t)); 637struct vmspace *uvmspace_fork __P((struct vmspace *)); 638void uvmspace_free __P((struct vmspace *)); 639void uvmspace_share __P((struct proc *, struct proc *)); 640void uvmspace_unshare __P((struct lwp *)); 641 642 643/* uvm_meter.c */ 644void uvm_meter __P((void)); 645int uvm_sysctl __P((int *, u_int, void *, size_t *, 646 void *, size_t, struct proc *)); 647 648/* uvm_mmap.c */ 649int uvm_mmap __P((struct vm_map *, vaddr_t *, vsize_t, 650 vm_prot_t, vm_prot_t, int, 651 void *, voff_t, vsize_t)); 652 653/* uvm_page.c */ 654struct vm_page *uvm_pagealloc_strat __P((struct uvm_object *, 655 voff_t, struct vm_anon *, int, int, int)); 656#define uvm_pagealloc(obj, off, anon, flags) \ 657 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 658 UVM_PGA_STRAT_NORMAL, 0) 659void uvm_pagerealloc __P((struct vm_page *, 660 struct uvm_object *, voff_t)); 661/* Actually, uvm_page_physload takes PF#s which need their own type */ 662void uvm_page_physload __P((paddr_t, paddr_t, paddr_t, 663 paddr_t, int)); 664void uvm_setpagesize __P((void)); 665 666/* uvm_pager.c */ 667void uvm_aio_biodone1 __P((struct buf *)); 668void uvm_aio_biodone __P((struct buf *)); 669void uvm_aio_aiodone __P((struct buf *)); 670 671/* uvm_pdaemon.c */ 672void uvm_pageout __P((void *)); 673void uvm_aiodone_daemon __P((void *)); 674 675/* uvm_pglist.c */ 676int uvm_pglistalloc __P((psize_t, paddr_t, paddr_t, 677 paddr_t, paddr_t, struct pglist *, int, int)); 678void uvm_pglistfree __P((struct pglist *)); 679 680/* uvm_swap.c */ 681void uvm_swap_init __P((void)); 682 683/* uvm_unix.c */ 684int uvm_grow __P((struct proc *, vaddr_t)); 685 686/* uvm_user.c */ 687void uvm_deallocate __P((struct vm_map *, vaddr_t, vsize_t)); 688 689/* uvm_vnode.c */ 690void uvm_vnp_setsize __P((struct vnode *, voff_t)); 691void uvm_vnp_sync __P((struct mount *)); 692struct uvm_object *uvn_attach __P((void *, vm_prot_t)); 693int uvn_findpages __P((struct uvm_object *, voff_t, 694 int *, struct vm_page **, int)); 695void uvm_vnp_zerorange __P((struct vnode *, off_t, size_t)); 696 697/* kern_malloc.c */ 698void kmeminit_nkmempages __P((void)); 699void kmeminit __P((void)); 700extern int nkmempages; 701 702#endif /* _KERNEL */ 703 704#endif /* _UVM_UVM_EXTERN_H_ */ 705