uvm_extern.h revision 1.65
1 /* $NetBSD: uvm_extern.h,v 1.65 2001/06/02 18:09:26 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 */ 160 #define UVM_UNKNOWN_OFFSET ((voff_t) -1) 161 /* offset not known(obj) or don't care(!obj) */ 162 163 /* 164 * the following defines are for uvm_km_kmemalloc's flags 165 */ 166 #define UVM_KMF_NOWAIT 0x1 /* matches M_NOWAIT */ 167 #define UVM_KMF_VALLOC 0x2 /* allocate VA only */ 168 #define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */ 169 170 /* 171 * the following defines the strategies for uvm_pagealloc_strat() 172 */ 173 #define UVM_PGA_STRAT_NORMAL 0 /* high -> low free list walk */ 174 #define UVM_PGA_STRAT_ONLY 1 /* only specified free list */ 175 #define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */ 176 177 /* 178 * flags for uvm_pagealloc_strat() 179 */ 180 #define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */ 181 #define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */ 182 183 /* 184 * the following defines are for ubc_alloc's flags 185 */ 186 #define UBC_READ 0 187 #define UBC_WRITE 1 188 189 /* 190 * flags for uvn_findpages(). 191 */ 192 #define UFP_ALL 0x0 193 #define UFP_NOWAIT 0x1 194 #define UFP_NOALLOC 0x2 195 #define UFP_NOCACHE 0x4 196 #define UFP_NORDONLY 0x8 197 198 /* 199 * lockflags that control the locking behavior of various functions. 200 */ 201 #define UVM_LK_ENTER 0x00000001 /* map locked on entry */ 202 #define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */ 203 204 /* 205 * structures 206 */ 207 208 struct core; 209 struct mount; 210 struct pglist; 211 struct proc; 212 struct ucred; 213 struct uio; 214 struct uvm_object; 215 struct vm_anon; 216 struct vmspace; 217 struct pmap; 218 struct vnode; 219 struct pool; 220 struct simplelock; 221 struct vm_map_entry; 222 struct vm_map; 223 struct vm_page; 224 225 extern struct pool *uvm_aiobuf_pool; 226 227 /* 228 * uvmexp: global data structures that are exported to parts of the kernel 229 * other than the vm system. 230 */ 231 232 struct uvmexp { 233 /* vm_page constants */ 234 int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */ 235 int pagemask; /* page mask */ 236 int pageshift; /* page shift */ 237 238 /* vm_page counters */ 239 int npages; /* number of pages we manage */ 240 int free; /* number of free pages */ 241 int active; /* number of active pages */ 242 int inactive; /* number of pages that we free'd but may want back */ 243 int paging; /* number of pages in the process of being paged out */ 244 int wired; /* number of wired pages */ 245 246 int ncolors; /* number of page color buckets: must be p-o-2 */ 247 int colormask; /* color bucket mask */ 248 249 /* 250 * Adding anything before this line will break binary compatibility 251 * with top(1) on NetBSD 1.5. 252 */ 253 254 int zeropages; /* number of zero'd pages */ 255 int reserve_pagedaemon; /* number of pages reserved for pagedaemon */ 256 int reserve_kernel; /* number of pages reserved for kernel */ 257 int anonpages; /* number of pages used by anon pagers */ 258 int vnodepages; /* number of pages used by vnode page cache */ 259 int vtextpages; /* number of pages used by vtext vnodes */ 260 261 /* pageout params */ 262 int freemin; /* min number of free pages */ 263 int freetarg; /* target number of free pages */ 264 int inactarg; /* target number of inactive pages */ 265 int wiredmax; /* max number of wired pages */ 266 int anonmin; /* min threshold for anon pages */ 267 int vtextmin; /* min threshold for vtext pages */ 268 int vnodemin; /* min threshold for vnode pages */ 269 int anonminpct; /* min percent anon pages */ 270 int vtextminpct;/* min percent vtext pages */ 271 int vnodeminpct;/* min percent vnode pages */ 272 273 /* swap */ 274 int nswapdev; /* number of configured swap devices in system */ 275 int swpages; /* number of PAGE_SIZE'ed swap pages */ 276 int swpginuse; /* number of swap pages in use */ 277 int swpgonly; /* number of swap pages in use, not also in RAM */ 278 int nswget; /* number of times fault calls uvm_swap_get() */ 279 int nanon; /* number total of anon's in system */ 280 int nanonneeded;/* number of anons currently needed */ 281 int nfreeanon; /* number of free anon's */ 282 283 /* stat counters */ 284 int faults; /* page fault count */ 285 int traps; /* trap count */ 286 int intrs; /* interrupt count */ 287 int swtch; /* context switch count */ 288 int softs; /* software interrupt count */ 289 int syscalls; /* system calls */ 290 int pageins; /* pagein operation count */ 291 /* pageouts are in pdpageouts below */ 292 int swapins; /* swapins */ 293 int swapouts; /* swapouts */ 294 int pgswapin; /* pages swapped in */ 295 int pgswapout; /* pages swapped out */ 296 int forks; /* forks */ 297 int forks_ppwait; /* forks where parent waits */ 298 int forks_sharevm; /* forks where vmspace is shared */ 299 int pga_zerohit; /* pagealloc where zero wanted and zero 300 was available */ 301 int pga_zeromiss; /* pagealloc where zero wanted and zero 302 not available */ 303 int zeroaborts; /* number of times page zeroing was 304 aborted */ 305 int colorhit; /* pagealloc where we got optimal color */ 306 int colormiss; /* pagealloc where we didn't */ 307 308 /* fault subcounters */ 309 int fltnoram; /* number of times fault was out of ram */ 310 int fltnoanon; /* number of times fault was out of anons */ 311 int fltpgwait; /* number of times fault had to wait on a page */ 312 int fltpgrele; /* number of times fault found a released page */ 313 int fltrelck; /* number of times fault relock called */ 314 int fltrelckok; /* number of times fault relock is a success */ 315 int fltanget; /* number of times fault gets anon page */ 316 int fltanretry; /* number of times fault retrys an anon get */ 317 int fltamcopy; /* number of times fault clears "needs copy" */ 318 int fltnamap; /* number of times fault maps a neighbor anon page */ 319 int fltnomap; /* number of times fault maps a neighbor obj page */ 320 int fltlget; /* number of times fault does a locked pgo_get */ 321 int fltget; /* number of times fault does an unlocked get */ 322 int flt_anon; /* number of times fault anon (case 1a) */ 323 int flt_acow; /* number of times fault anon cow (case 1b) */ 324 int flt_obj; /* number of times fault is on object page (2a) */ 325 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 326 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 327 328 /* daemon counters */ 329 int pdwoke; /* number of times daemon woke up */ 330 int pdrevs; /* number of times daemon rev'd clock hand */ 331 int pdswout; /* number of times daemon called for swapout */ 332 int pdfreed; /* number of pages daemon freed since boot */ 333 int pdscans; /* number of pages daemon scaned since boot */ 334 int pdanscan; /* number of anonymous pages scanned by daemon */ 335 int pdobscan; /* number of object pages scanned by daemon */ 336 int pdreact; /* number of pages daemon reactivated since boot */ 337 int pdbusy; /* number of times daemon found a busy page */ 338 int pdpageouts; /* number of times daemon started a pageout */ 339 int pdpending; /* number of times daemon got a pending pagout */ 340 int pddeact; /* number of pages daemon deactivates */ 341 int pdreanon; /* anon pages reactivated due to min threshold */ 342 int pdrevnode; /* vnode pages reactivated due to min threshold */ 343 int pdrevtext; /* vtext pages reactivated due to min threshold */ 344 345 /* kernel memory objects: managed by uvm_km_kmemalloc() only! */ 346 struct uvm_object *kmem_object; 347 struct uvm_object *mb_object; 348 }; 349 350 /* 351 * The following structure is 64-bit alignment safe. New elements 352 * should only be added to the end of this structure so binary 353 * compatibility can be preserved. 354 */ 355 struct uvmexp_sysctl { 356 int64_t pagesize; 357 int64_t pagemask; 358 int64_t pageshift; 359 int64_t npages; 360 int64_t free; 361 int64_t active; 362 int64_t inactive; 363 int64_t paging; 364 int64_t wired; 365 int64_t zeropages; 366 int64_t reserve_pagedaemon; 367 int64_t reserve_kernel; 368 int64_t freemin; 369 int64_t freetarg; 370 int64_t inactarg; 371 int64_t wiredmax; 372 int64_t nswapdev; 373 int64_t swpages; 374 int64_t swpginuse; 375 int64_t swpgonly; 376 int64_t nswget; 377 int64_t nanon; 378 int64_t nanonneeded; 379 int64_t nfreeanon; 380 int64_t faults; 381 int64_t traps; 382 int64_t intrs; 383 int64_t swtch; 384 int64_t softs; 385 int64_t syscalls; 386 int64_t pageins; 387 int64_t swapins; 388 int64_t swapouts; 389 int64_t pgswapin; 390 int64_t pgswapout; 391 int64_t forks; 392 int64_t forks_ppwait; 393 int64_t forks_sharevm; 394 int64_t pga_zerohit; 395 int64_t pga_zeromiss; 396 int64_t zeroaborts; 397 int64_t fltnoram; 398 int64_t fltnoanon; 399 int64_t fltpgwait; 400 int64_t fltpgrele; 401 int64_t fltrelck; 402 int64_t fltrelckok; 403 int64_t fltanget; 404 int64_t fltanretry; 405 int64_t fltamcopy; 406 int64_t fltnamap; 407 int64_t fltnomap; 408 int64_t fltlget; 409 int64_t fltget; 410 int64_t flt_anon; 411 int64_t flt_acow; 412 int64_t flt_obj; 413 int64_t flt_prcopy; 414 int64_t flt_przero; 415 int64_t pdwoke; 416 int64_t pdrevs; 417 int64_t pdswout; 418 int64_t pdfreed; 419 int64_t pdscans; 420 int64_t pdanscan; 421 int64_t pdobscan; 422 int64_t pdreact; 423 int64_t pdbusy; 424 int64_t pdpageouts; 425 int64_t pdpending; 426 int64_t pddeact; 427 int64_t anonpages; 428 int64_t vnodepages; 429 int64_t vtextpages; 430 int64_t colorhit; 431 int64_t colormiss; 432 int64_t ncolors; 433 }; 434 435 #ifdef _KERNEL 436 extern struct uvmexp uvmexp; 437 #endif 438 439 /* 440 * Finally, bring in standard UVM headers. 441 */ 442 #include <sys/vmmeter.h> 443 #include <sys/queue.h> 444 #include <uvm/uvm_param.h> 445 #include <sys/lock.h> 446 #include <uvm/uvm_prot.h> 447 #include <uvm/uvm_page.h> 448 #include <uvm/uvm_pmap.h> 449 #include <uvm/uvm_map.h> 450 #include <uvm/uvm_fault.h> 451 #include <uvm/uvm_pager.h> 452 453 /* 454 * Shareable process virtual address space. 455 * May eventually be merged with vm_map. 456 * Several fields are temporary (text, data stuff). 457 */ 458 struct vmspace { 459 struct vm_map vm_map; /* VM address map */ 460 int vm_refcnt; /* number of references */ 461 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 462 /* we copy from vm_startcopy to the end of the structure on fork */ 463 #define vm_startcopy vm_rssize 464 segsz_t vm_rssize; /* current resident set size in pages */ 465 segsz_t vm_swrss; /* resident set size before last swap */ 466 segsz_t vm_tsize; /* text size (pages) XXX */ 467 segsz_t vm_dsize; /* data size (pages) XXX */ 468 segsz_t vm_ssize; /* stack size (pages) */ 469 caddr_t vm_taddr; /* user virtual address of text XXX */ 470 caddr_t vm_daddr; /* user virtual address of data XXX */ 471 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 472 caddr_t vm_minsaddr; /* user VA at top of stack */ 473 }; 474 475 #ifdef _KERNEL 476 477 /* 478 * the various kernel maps, owned by MD code 479 */ 480 extern struct vm_map *exec_map; 481 extern struct vm_map *kernel_map; 482 extern struct vm_map *kmem_map; 483 extern struct vm_map *mb_map; 484 extern struct vm_map *phys_map; 485 486 /* 487 * macros 488 */ 489 490 /* zalloc zeros memory, alloc does not */ 491 #define uvm_km_zalloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,TRUE) 492 #define uvm_km_alloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,FALSE) 493 494 #endif /* _KERNEL */ 495 496 #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 497 498 /* XXX clean up later */ 499 struct buf; 500 struct loadavg; 501 struct proc; 502 struct pmap; 503 struct vmspace; 504 struct vmtotal; 505 struct mount; 506 struct vnode; 507 struct core; 508 509 #ifdef _KERNEL 510 511 /* vm_machdep.c */ 512 void vmapbuf __P((struct buf *, vsize_t)); 513 void vunmapbuf __P((struct buf *, vsize_t)); 514 void pagemove __P((caddr_t, caddr_t, size_t)); 515 #ifndef cpu_swapin 516 void cpu_swapin __P((struct proc *)); 517 #endif 518 #ifndef cpu_swapout 519 void cpu_swapout __P((struct proc *)); 520 #endif 521 522 /* uvm_aobj.c */ 523 struct uvm_object *uao_create __P((vsize_t, int)); 524 void uao_detach __P((struct uvm_object *)); 525 void uao_detach_locked __P((struct uvm_object *)); 526 void uao_reference __P((struct uvm_object *)); 527 void uao_reference_locked __P((struct uvm_object *)); 528 529 /* uvm_bio.c */ 530 void ubc_init __P((void)); 531 void * ubc_alloc __P((struct uvm_object *, voff_t, vsize_t *, 532 int)); 533 void ubc_release __P((void *, vsize_t)); 534 void ubc_flush __P((struct uvm_object *, voff_t, voff_t)); 535 536 /* uvm_fault.c */ 537 int uvm_fault __P((struct vm_map *, vaddr_t, vm_fault_t, 538 vm_prot_t)); 539 /* handle a page fault */ 540 541 /* uvm_glue.c */ 542 #if defined(KGDB) 543 void uvm_chgkprot __P((caddr_t, size_t, int)); 544 #endif 545 void uvm_fork __P((struct proc *, struct proc *, boolean_t, 546 void *, size_t, void (*)(void *), void *)); 547 void uvm_exit __P((struct proc *)); 548 void uvm_init_limits __P((struct proc *)); 549 boolean_t uvm_kernacc __P((caddr_t, size_t, int)); 550 __dead void uvm_scheduler __P((void)) __attribute__((noreturn)); 551 void uvm_swapin __P((struct proc *)); 552 boolean_t uvm_useracc __P((caddr_t, size_t, int)); 553 int uvm_vslock __P((struct proc *, caddr_t, size_t, 554 vm_prot_t)); 555 void uvm_vsunlock __P((struct proc *, caddr_t, size_t)); 556 557 558 /* uvm_init.c */ 559 void uvm_init __P((void)); 560 /* init the uvm system */ 561 562 /* uvm_io.c */ 563 int uvm_io __P((struct vm_map *, struct uio *)); 564 565 /* uvm_km.c */ 566 vaddr_t uvm_km_alloc1 __P((struct vm_map *, vsize_t, 567 boolean_t)); 568 void uvm_km_free __P((struct vm_map *, vaddr_t, vsize_t)); 569 void uvm_km_free_wakeup __P((struct vm_map *, vaddr_t, 570 vsize_t)); 571 vaddr_t uvm_km_kmemalloc __P((struct vm_map *, struct 572 uvm_object *, vsize_t, int)); 573 struct vm_map *uvm_km_suballoc __P((struct vm_map *, vaddr_t *, 574 vaddr_t *, vsize_t, int, boolean_t, 575 struct vm_map *)); 576 vaddr_t uvm_km_valloc __P((struct vm_map *, vsize_t)); 577 vaddr_t uvm_km_valloc_align __P((struct vm_map *, vsize_t, 578 vsize_t)); 579 vaddr_t uvm_km_valloc_wait __P((struct vm_map *, vsize_t)); 580 vaddr_t uvm_km_valloc_prefer_wait __P((struct vm_map *, vsize_t, 581 voff_t)); 582 vaddr_t uvm_km_alloc_poolpage1 __P((struct vm_map *, 583 struct uvm_object *, boolean_t)); 584 void uvm_km_free_poolpage1 __P((struct vm_map *, vaddr_t)); 585 586 #define uvm_km_alloc_poolpage(waitok) \ 587 uvm_km_alloc_poolpage1(kmem_map, uvmexp.kmem_object, (waitok)) 588 #define uvm_km_free_poolpage(addr) \ 589 uvm_km_free_poolpage1(kmem_map, (addr)) 590 591 /* uvm_map.c */ 592 int uvm_map __P((struct vm_map *, vaddr_t *, vsize_t, 593 struct uvm_object *, voff_t, vsize_t, 594 uvm_flag_t)); 595 int uvm_map_pageable __P((struct vm_map *, vaddr_t, 596 vaddr_t, boolean_t, int)); 597 int uvm_map_pageable_all __P((struct vm_map *, int, 598 vsize_t)); 599 boolean_t uvm_map_checkprot __P((struct vm_map *, vaddr_t, 600 vaddr_t, vm_prot_t)); 601 int uvm_map_protect __P((struct vm_map *, vaddr_t, 602 vaddr_t, vm_prot_t, boolean_t)); 603 struct vmspace *uvmspace_alloc __P((vaddr_t, vaddr_t, 604 boolean_t)); 605 void uvmspace_init __P((struct vmspace *, struct pmap *, 606 vaddr_t, vaddr_t, boolean_t)); 607 void uvmspace_exec __P((struct proc *, vaddr_t, vaddr_t)); 608 struct vmspace *uvmspace_fork __P((struct vmspace *)); 609 void uvmspace_free __P((struct vmspace *)); 610 void uvmspace_share __P((struct proc *, struct proc *)); 611 void uvmspace_unshare __P((struct proc *)); 612 613 614 /* uvm_meter.c */ 615 void uvm_meter __P((void)); 616 int uvm_sysctl __P((int *, u_int, void *, size_t *, 617 void *, size_t, struct proc *)); 618 619 /* uvm_mmap.c */ 620 int uvm_mmap __P((struct vm_map *, vaddr_t *, vsize_t, 621 vm_prot_t, vm_prot_t, int, 622 void *, voff_t, vsize_t)); 623 624 /* uvm_page.c */ 625 struct vm_page *uvm_pagealloc_strat __P((struct uvm_object *, 626 voff_t, struct vm_anon *, int, int, int)); 627 #define uvm_pagealloc(obj, off, anon, flags) \ 628 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 629 UVM_PGA_STRAT_NORMAL, 0) 630 void uvm_pagerealloc __P((struct vm_page *, 631 struct uvm_object *, voff_t)); 632 /* Actually, uvm_page_physload takes PF#s which need their own type */ 633 void uvm_page_physload __P((paddr_t, paddr_t, 634 paddr_t, paddr_t, int)); 635 void uvm_setpagesize __P((void)); 636 637 /* uvm_pager.c */ 638 void uvm_aio_biodone1 __P((struct buf *)); 639 void uvm_aio_biodone __P((struct buf *)); 640 void uvm_aio_aiodone __P((struct buf *)); 641 642 /* uvm_pdaemon.c */ 643 void uvm_pageout __P((void *)); 644 void uvm_aiodone_daemon __P((void *)); 645 646 /* uvm_pglist.c */ 647 int uvm_pglistalloc __P((psize_t, paddr_t, 648 paddr_t, paddr_t, paddr_t, 649 struct pglist *, int, int)); 650 void uvm_pglistfree __P((struct pglist *)); 651 652 /* uvm_swap.c */ 653 void uvm_swap_init __P((void)); 654 655 /* uvm_unix.c */ 656 int uvm_coredump __P((struct proc *, struct vnode *, 657 struct ucred *, struct core *)); 658 int uvm_grow __P((struct proc *, vaddr_t)); 659 /* should only be needed if COMPAT_NETBSD32 is defined */ 660 struct core32; 661 int uvm_coredump32 __P((struct proc *, struct vnode *, 662 struct ucred *, struct core32 *)); 663 664 /* uvm_user.c */ 665 void uvm_deallocate __P((struct vm_map *, vaddr_t, vsize_t)); 666 667 /* uvm_vnode.c */ 668 void uvm_vnp_setsize __P((struct vnode *, voff_t)); 669 void uvm_vnp_sync __P((struct mount *)); 670 struct uvm_object *uvn_attach __P((void *, vm_prot_t)); 671 void uvn_findpages __P((struct uvm_object *, voff_t, 672 int *, struct vm_page **, int)); 673 void uvm_vnp_zerorange __P((struct vnode *, off_t, size_t)); 674 void uvm_vnp_asyncget __P((struct vnode *, off_t, size_t)); 675 676 /* kern_malloc.c */ 677 void kmeminit_nkmempages __P((void)); 678 void kmeminit __P((void)); 679 extern int nkmempages; 680 681 #endif /* _KERNEL */ 682 683 #endif /* _UVM_UVM_EXTERN_H_ */ 684
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