uvm_extern.h revision 1.61
1 /* $NetBSD: uvm_extern.h,v 1.61 2001/05/01 19:36:56 thorpej 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 union vm_map_object; 97 typedef union vm_map_object vm_map_object_t; 98 99 struct vm_map_entry; 100 typedef struct vm_map_entry *vm_map_entry_t; 101 102 struct vm_map; 103 typedef struct vm_map *vm_map_t; 104 105 struct vm_page; 106 typedef struct vm_page *vm_page_t; 107 108 /* 109 * defines 110 */ 111 112 /* 113 * the following defines are for uvm_map and functions which call it. 114 */ 115 116 /* protections bits */ 117 #define UVM_PROT_MASK 0x07 /* protection mask */ 118 #define UVM_PROT_NONE 0x00 /* protection none */ 119 #define UVM_PROT_ALL 0x07 /* everything */ 120 #define UVM_PROT_READ 0x01 /* read */ 121 #define UVM_PROT_WRITE 0x02 /* write */ 122 #define UVM_PROT_EXEC 0x04 /* exec */ 123 124 /* protection short codes */ 125 #define UVM_PROT_R 0x01 /* read */ 126 #define UVM_PROT_W 0x02 /* write */ 127 #define UVM_PROT_RW 0x03 /* read-write */ 128 #define UVM_PROT_X 0x04 /* exec */ 129 #define UVM_PROT_RX 0x05 /* read-exec */ 130 #define UVM_PROT_WX 0x06 /* write-exec */ 131 #define UVM_PROT_RWX 0x07 /* read-write-exec */ 132 133 /* 0x08: not used */ 134 135 /* inherit codes */ 136 #define UVM_INH_MASK 0x30 /* inherit mask */ 137 #define UVM_INH_SHARE 0x00 /* "share" */ 138 #define UVM_INH_COPY 0x10 /* "copy" */ 139 #define UVM_INH_NONE 0x20 /* "none" */ 140 #define UVM_INH_DONATE 0x30 /* "donate" << not used */ 141 142 /* 0x40, 0x80: not used */ 143 144 /* bits 0x700: max protection, 0x800: not used */ 145 146 /* bits 0x7000: advice, 0x8000: not used */ 147 /* advice: matches MADV_* from sys/mman.h */ 148 #define UVM_ADV_NORMAL 0x0 /* 'normal' */ 149 #define UVM_ADV_RANDOM 0x1 /* 'random' */ 150 #define UVM_ADV_SEQUENTIAL 0x2 /* 'sequential' */ 151 /* 0x3: will need, 0x4: dontneed */ 152 #define UVM_ADV_MASK 0x7 /* mask */ 153 154 /* mapping flags */ 155 #define UVM_FLAG_FIXED 0x010000 /* find space */ 156 #define UVM_FLAG_OVERLAY 0x020000 /* establish overlay */ 157 #define UVM_FLAG_NOMERGE 0x040000 /* don't merge map entries */ 158 #define UVM_FLAG_COPYONW 0x080000 /* set copy_on_write flag */ 159 #define UVM_FLAG_AMAPPAD 0x100000 /* for bss: pad amap to reduce malloc() */ 160 #define UVM_FLAG_TRYLOCK 0x200000 /* fail if we can not lock map */ 161 162 /* macros to extract info */ 163 #define UVM_PROTECTION(X) ((X) & UVM_PROT_MASK) 164 #define UVM_INHERIT(X) (((X) & UVM_INH_MASK) >> 4) 165 #define UVM_MAXPROTECTION(X) (((X) >> 8) & UVM_PROT_MASK) 166 #define UVM_ADVICE(X) (((X) >> 12) & UVM_ADV_MASK) 167 168 #define UVM_MAPFLAG(PROT,MAXPROT,INH,ADVICE,FLAGS) \ 169 ((MAXPROT << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS)) 170 171 /* magic offset value */ 172 #define UVM_UNKNOWN_OFFSET ((voff_t) -1) 173 /* offset not known(obj) or don't care(!obj) */ 174 175 /* 176 * the following defines are for uvm_km_kmemalloc's flags 177 */ 178 #define UVM_KMF_NOWAIT 0x1 /* matches M_NOWAIT */ 179 #define UVM_KMF_VALLOC 0x2 /* allocate VA only */ 180 #define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */ 181 182 /* 183 * the following defines the strategies for uvm_pagealloc_strat() 184 */ 185 #define UVM_PGA_STRAT_NORMAL 0 /* high -> low free list walk */ 186 #define UVM_PGA_STRAT_ONLY 1 /* only specified free list */ 187 #define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */ 188 189 /* 190 * flags for uvm_pagealloc_strat() 191 */ 192 #define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */ 193 #define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */ 194 195 /* 196 * the following defines are for ubc_alloc's flags 197 */ 198 #define UBC_READ 0 199 #define UBC_WRITE 1 200 201 /* 202 * flags for uvn_findpages(). 203 */ 204 #define UFP_ALL 0x0 205 #define UFP_NOWAIT 0x1 206 #define UFP_NOALLOC 0x2 207 #define UFP_NOCACHE 0x4 208 #define UFP_NORDONLY 0x8 209 210 /* 211 * lockflags that control the locking behavior of various functions. 212 */ 213 #define UVM_LK_ENTER 0x00000001 /* map locked on entry */ 214 #define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */ 215 216 /* 217 * structures 218 */ 219 220 struct core; 221 struct mount; 222 struct pglist; 223 struct proc; 224 struct ucred; 225 struct uio; 226 struct uvm_object; 227 struct vm_anon; 228 struct vmspace; 229 struct pmap; 230 struct vnode; 231 struct pool; 232 struct simplelock; 233 234 extern struct pool *uvm_aiobuf_pool; 235 236 /* 237 * uvmexp: global data structures that are exported to parts of the kernel 238 * other than the vm system. 239 */ 240 241 struct uvmexp { 242 /* vm_page constants */ 243 int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */ 244 int pagemask; /* page mask */ 245 int pageshift; /* page shift */ 246 247 /* vm_page counters */ 248 int npages; /* number of pages we manage */ 249 int free; /* number of free pages */ 250 int active; /* number of active pages */ 251 int inactive; /* number of pages that we free'd but may want back */ 252 int paging; /* number of pages in the process of being paged out */ 253 int wired; /* number of wired pages */ 254 255 /* 256 * Adding anything before this line will break binary compatibility 257 * with top(1) on NetBSD 1.5. 258 */ 259 260 int zeropages; /* number of zero'd pages */ 261 int reserve_pagedaemon; /* number of pages reserved for pagedaemon */ 262 int reserve_kernel; /* number of pages reserved for kernel */ 263 int anonpages; /* number of pages used by anon pagers */ 264 int vnodepages; /* number of pages used by vnode page cache */ 265 int vtextpages; /* number of pages used by vtext vnodes */ 266 267 /* pageout params */ 268 int freemin; /* min number of free pages */ 269 int freetarg; /* target number of free pages */ 270 int inactarg; /* target number of inactive pages */ 271 int wiredmax; /* max number of wired pages */ 272 int anonmin; /* min threshold for anon pages */ 273 int vtextmin; /* min threshold for vtext pages */ 274 int vnodemin; /* min threshold for vnode pages */ 275 int anonminpct; /* min percent anon pages */ 276 int vtextminpct;/* min percent vtext pages */ 277 int vnodeminpct;/* min percent vnode pages */ 278 279 /* swap */ 280 int nswapdev; /* number of configured swap devices in system */ 281 int swpages; /* number of PAGE_SIZE'ed swap pages */ 282 int swpginuse; /* number of swap pages in use */ 283 int swpgonly; /* number of swap pages in use, not also in RAM */ 284 int nswget; /* number of times fault calls uvm_swap_get() */ 285 int nanon; /* number total of anon's in system */ 286 int nanonneeded;/* number of anons currently needed */ 287 int nfreeanon; /* number of free anon's */ 288 289 /* stat counters */ 290 int faults; /* page fault count */ 291 int traps; /* trap count */ 292 int intrs; /* interrupt count */ 293 int swtch; /* context switch count */ 294 int softs; /* software interrupt count */ 295 int syscalls; /* system calls */ 296 int pageins; /* pagein operation count */ 297 /* pageouts are in pdpageouts below */ 298 int swapins; /* swapins */ 299 int swapouts; /* swapouts */ 300 int pgswapin; /* pages swapped in */ 301 int pgswapout; /* pages swapped out */ 302 int forks; /* forks */ 303 int forks_ppwait; /* forks where parent waits */ 304 int forks_sharevm; /* forks where vmspace is shared */ 305 int pga_zerohit; /* pagealloc where zero wanted and zero 306 was available */ 307 int pga_zeromiss; /* pagealloc where zero wanted and zero 308 not available */ 309 int zeroaborts; /* number of times page zeroing was 310 aborted */ 311 int colorhit; /* pagealloc where we got optimal color */ 312 int colormiss; /* pagealloc where we didn't */ 313 int ncolors; /* number of page color buckets */ 314 315 /* fault subcounters */ 316 int fltnoram; /* number of times fault was out of ram */ 317 int fltnoanon; /* number of times fault was out of anons */ 318 int fltpgwait; /* number of times fault had to wait on a page */ 319 int fltpgrele; /* number of times fault found a released page */ 320 int fltrelck; /* number of times fault relock called */ 321 int fltrelckok; /* number of times fault relock is a success */ 322 int fltanget; /* number of times fault gets anon page */ 323 int fltanretry; /* number of times fault retrys an anon get */ 324 int fltamcopy; /* number of times fault clears "needs copy" */ 325 int fltnamap; /* number of times fault maps a neighbor anon page */ 326 int fltnomap; /* number of times fault maps a neighbor obj page */ 327 int fltlget; /* number of times fault does a locked pgo_get */ 328 int fltget; /* number of times fault does an unlocked get */ 329 int flt_anon; /* number of times fault anon (case 1a) */ 330 int flt_acow; /* number of times fault anon cow (case 1b) */ 331 int flt_obj; /* number of times fault is on object page (2a) */ 332 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 333 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 334 335 /* daemon counters */ 336 int pdwoke; /* number of times daemon woke up */ 337 int pdrevs; /* number of times daemon rev'd clock hand */ 338 int pdswout; /* number of times daemon called for swapout */ 339 int pdfreed; /* number of pages daemon freed since boot */ 340 int pdscans; /* number of pages daemon scaned since boot */ 341 int pdanscan; /* number of anonymous pages scanned by daemon */ 342 int pdobscan; /* number of object pages scanned by daemon */ 343 int pdreact; /* number of pages daemon reactivated since boot */ 344 int pdbusy; /* number of times daemon found a busy page */ 345 int pdpageouts; /* number of times daemon started a pageout */ 346 int pdpending; /* number of times daemon got a pending pagout */ 347 int pddeact; /* number of pages daemon deactivates */ 348 int pdreanon; /* anon pages reactivated due to min threshold */ 349 int pdrevnode; /* vnode pages reactivated due to min threshold */ 350 int pdrevtext; /* vtext pages reactivated due to min threshold */ 351 352 /* kernel memory objects: managed by uvm_km_kmemalloc() only! */ 353 struct uvm_object *kmem_object; 354 struct uvm_object *mb_object; 355 }; 356 357 /* 358 * The following structure is 64-bit alignment safe. New elements 359 * should only be added to the end of this structure so binary 360 * compatibility can be preserved. 361 */ 362 struct uvmexp_sysctl { 363 int64_t pagesize; 364 int64_t pagemask; 365 int64_t pageshift; 366 int64_t npages; 367 int64_t free; 368 int64_t active; 369 int64_t inactive; 370 int64_t paging; 371 int64_t wired; 372 int64_t zeropages; 373 int64_t reserve_pagedaemon; 374 int64_t reserve_kernel; 375 int64_t freemin; 376 int64_t freetarg; 377 int64_t inactarg; 378 int64_t wiredmax; 379 int64_t nswapdev; 380 int64_t swpages; 381 int64_t swpginuse; 382 int64_t swpgonly; 383 int64_t nswget; 384 int64_t nanon; 385 int64_t nanonneeded; 386 int64_t nfreeanon; 387 int64_t faults; 388 int64_t traps; 389 int64_t intrs; 390 int64_t swtch; 391 int64_t softs; 392 int64_t syscalls; 393 int64_t pageins; 394 int64_t swapins; 395 int64_t swapouts; 396 int64_t pgswapin; 397 int64_t pgswapout; 398 int64_t forks; 399 int64_t forks_ppwait; 400 int64_t forks_sharevm; 401 int64_t pga_zerohit; 402 int64_t pga_zeromiss; 403 int64_t zeroaborts; 404 int64_t fltnoram; 405 int64_t fltnoanon; 406 int64_t fltpgwait; 407 int64_t fltpgrele; 408 int64_t fltrelck; 409 int64_t fltrelckok; 410 int64_t fltanget; 411 int64_t fltanretry; 412 int64_t fltamcopy; 413 int64_t fltnamap; 414 int64_t fltnomap; 415 int64_t fltlget; 416 int64_t fltget; 417 int64_t flt_anon; 418 int64_t flt_acow; 419 int64_t flt_obj; 420 int64_t flt_prcopy; 421 int64_t flt_przero; 422 int64_t pdwoke; 423 int64_t pdrevs; 424 int64_t pdswout; 425 int64_t pdfreed; 426 int64_t pdscans; 427 int64_t pdanscan; 428 int64_t pdobscan; 429 int64_t pdreact; 430 int64_t pdbusy; 431 int64_t pdpageouts; 432 int64_t pdpending; 433 int64_t pddeact; 434 int64_t anonpages; 435 int64_t vnodepages; 436 int64_t vtextpages; 437 int64_t colorhit; 438 int64_t colormiss; 439 int64_t ncolors; 440 }; 441 442 #ifdef _KERNEL 443 extern struct uvmexp uvmexp; 444 #endif 445 446 /* 447 * Finally, bring in standard UVM headers. 448 */ 449 #include <sys/vmmeter.h> 450 #include <sys/queue.h> 451 #include <uvm/uvm_param.h> 452 #include <sys/lock.h> 453 #include <uvm/uvm_prot.h> 454 #include <uvm/uvm_page.h> 455 #include <uvm/uvm_pmap.h> 456 #include <uvm/uvm_map.h> 457 #include <uvm/uvm_fault.h> 458 #include <uvm/uvm_pager.h> 459 460 /* 461 * Shareable process virtual address space. 462 * May eventually be merged with vm_map. 463 * Several fields are temporary (text, data stuff). 464 */ 465 struct vmspace { 466 struct vm_map vm_map; /* VM address map */ 467 int vm_refcnt; /* number of references */ 468 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 469 /* we copy from vm_startcopy to the end of the structure on fork */ 470 #define vm_startcopy vm_rssize 471 segsz_t vm_rssize; /* current resident set size in pages */ 472 segsz_t vm_swrss; /* resident set size before last swap */ 473 segsz_t vm_tsize; /* text size (pages) XXX */ 474 segsz_t vm_dsize; /* data size (pages) XXX */ 475 segsz_t vm_ssize; /* stack size (pages) */ 476 caddr_t vm_taddr; /* user virtual address of text XXX */ 477 caddr_t vm_daddr; /* user virtual address of data XXX */ 478 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 479 caddr_t vm_minsaddr; /* user VA at top of stack */ 480 }; 481 482 #ifdef _KERNEL 483 484 /* 485 * the various kernel maps, owned by MD code 486 */ 487 extern vm_map_t exec_map; 488 extern vm_map_t kernel_map; 489 extern vm_map_t kmem_map; 490 extern vm_map_t mb_map; 491 extern vm_map_t phys_map; 492 493 /* 494 * macros 495 */ 496 497 /* zalloc zeros memory, alloc does not */ 498 #define uvm_km_zalloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,TRUE) 499 #define uvm_km_alloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,FALSE) 500 501 #endif /* _KERNEL */ 502 503 #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 504 505 /* XXX clean up later */ 506 struct buf; 507 struct loadavg; 508 struct proc; 509 struct pmap; 510 struct vmspace; 511 struct vmtotal; 512 struct mount; 513 struct vnode; 514 struct core; 515 516 #ifdef _KERNEL 517 518 /* vm_machdep.c */ 519 void vmapbuf __P((struct buf *, vsize_t)); 520 void vunmapbuf __P((struct buf *, vsize_t)); 521 void pagemove __P((caddr_t, caddr_t, size_t)); 522 #ifndef cpu_swapin 523 void cpu_swapin __P((struct proc *)); 524 #endif 525 #ifndef cpu_swapout 526 void cpu_swapout __P((struct proc *)); 527 #endif 528 529 /* uvm_aobj.c */ 530 struct uvm_object *uao_create __P((vsize_t, int)); 531 void uao_detach __P((struct uvm_object *)); 532 void uao_detach_locked __P((struct uvm_object *)); 533 void uao_reference __P((struct uvm_object *)); 534 void uao_reference_locked __P((struct uvm_object *)); 535 536 /* uvm_bio.c */ 537 void ubc_init __P((void)); 538 void * ubc_alloc __P((struct uvm_object *, voff_t, vsize_t *, 539 int)); 540 void ubc_release __P((void *, vsize_t)); 541 void ubc_flush __P((struct uvm_object *, voff_t, voff_t)); 542 543 /* uvm_fault.c */ 544 int uvm_fault __P((vm_map_t, vaddr_t, vm_fault_t, 545 vm_prot_t)); 546 /* handle a page fault */ 547 548 /* uvm_glue.c */ 549 #if defined(KGDB) 550 void uvm_chgkprot __P((caddr_t, size_t, int)); 551 #endif 552 void uvm_fork __P((struct proc *, struct proc *, boolean_t, 553 void *, size_t, void (*)(void *), void *)); 554 void uvm_exit __P((struct proc *)); 555 void uvm_init_limits __P((struct proc *)); 556 boolean_t uvm_kernacc __P((caddr_t, size_t, int)); 557 __dead void uvm_scheduler __P((void)) __attribute__((noreturn)); 558 void uvm_swapin __P((struct proc *)); 559 boolean_t uvm_useracc __P((caddr_t, size_t, int)); 560 int uvm_vslock __P((struct proc *, caddr_t, size_t, 561 vm_prot_t)); 562 void uvm_vsunlock __P((struct proc *, caddr_t, size_t)); 563 564 565 /* uvm_init.c */ 566 void uvm_init __P((void)); 567 /* init the uvm system */ 568 569 /* uvm_io.c */ 570 int uvm_io __P((vm_map_t, struct uio *)); 571 572 /* uvm_km.c */ 573 vaddr_t uvm_km_alloc1 __P((vm_map_t, vsize_t, boolean_t)); 574 void uvm_km_free __P((vm_map_t, vaddr_t, vsize_t)); 575 void uvm_km_free_wakeup __P((vm_map_t, vaddr_t, 576 vsize_t)); 577 vaddr_t uvm_km_kmemalloc __P((vm_map_t, struct uvm_object *, 578 vsize_t, int)); 579 struct vm_map *uvm_km_suballoc __P((vm_map_t, vaddr_t *, 580 vaddr_t *, vsize_t, int, 581 boolean_t, vm_map_t)); 582 vaddr_t uvm_km_valloc __P((vm_map_t, vsize_t)); 583 vaddr_t uvm_km_valloc_align __P((vm_map_t, vsize_t, vsize_t)); 584 vaddr_t uvm_km_valloc_wait __P((vm_map_t, vsize_t)); 585 vaddr_t uvm_km_valloc_prefer_wait __P((vm_map_t, vsize_t, 586 voff_t)); 587 vaddr_t uvm_km_alloc_poolpage1 __P((vm_map_t, 588 struct uvm_object *, boolean_t)); 589 void uvm_km_free_poolpage1 __P((vm_map_t, vaddr_t)); 590 591 #define uvm_km_alloc_poolpage(waitok) uvm_km_alloc_poolpage1(kmem_map, \ 592 uvmexp.kmem_object, (waitok)) 593 #define uvm_km_free_poolpage(addr) uvm_km_free_poolpage1(kmem_map, (addr)) 594 595 /* uvm_map.c */ 596 int uvm_map __P((vm_map_t, vaddr_t *, vsize_t, 597 struct uvm_object *, voff_t, vsize_t, 598 uvm_flag_t)); 599 int uvm_map_pageable __P((vm_map_t, vaddr_t, 600 vaddr_t, boolean_t, int)); 601 int uvm_map_pageable_all __P((vm_map_t, int, vsize_t)); 602 boolean_t uvm_map_checkprot __P((vm_map_t, vaddr_t, 603 vaddr_t, vm_prot_t)); 604 int uvm_map_protect __P((vm_map_t, vaddr_t, 605 vaddr_t, vm_prot_t, boolean_t)); 606 struct vmspace *uvmspace_alloc __P((vaddr_t, vaddr_t, 607 boolean_t)); 608 void uvmspace_init __P((struct vmspace *, struct pmap *, 609 vaddr_t, vaddr_t, boolean_t)); 610 void uvmspace_exec __P((struct proc *, vaddr_t, vaddr_t)); 611 struct vmspace *uvmspace_fork __P((struct vmspace *)); 612 void uvmspace_free __P((struct vmspace *)); 613 void uvmspace_share __P((struct proc *, struct proc *)); 614 void uvmspace_unshare __P((struct proc *)); 615 616 617 /* uvm_meter.c */ 618 void uvm_meter __P((void)); 619 int uvm_sysctl __P((int *, u_int, void *, size_t *, 620 void *, size_t, struct proc *)); 621 622 /* uvm_mmap.c */ 623 int uvm_mmap __P((vm_map_t, vaddr_t *, vsize_t, 624 vm_prot_t, vm_prot_t, int, 625 void *, voff_t, vsize_t)); 626 627 /* uvm_page.c */ 628 struct vm_page *uvm_pagealloc_strat __P((struct uvm_object *, 629 voff_t, struct vm_anon *, int, int, int)); 630 #define uvm_pagealloc(obj, off, anon, flags) \ 631 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 632 UVM_PGA_STRAT_NORMAL, 0) 633 void uvm_pagerealloc __P((struct vm_page *, 634 struct uvm_object *, voff_t)); 635 /* Actually, uvm_page_physload takes PF#s which need their own type */ 636 void uvm_page_physload __P((paddr_t, paddr_t, 637 paddr_t, paddr_t, int)); 638 void uvm_setpagesize __P((void)); 639 640 /* uvm_pager.c */ 641 void uvm_aio_biodone1 __P((struct buf *)); 642 void uvm_aio_biodone __P((struct buf *)); 643 void uvm_aio_aiodone __P((struct buf *)); 644 645 /* uvm_pdaemon.c */ 646 void uvm_pageout __P((void *)); 647 void uvm_aiodone_daemon __P((void *)); 648 649 /* uvm_pglist.c */ 650 int uvm_pglistalloc __P((psize_t, paddr_t, 651 paddr_t, paddr_t, paddr_t, 652 struct pglist *, int, int)); 653 void uvm_pglistfree __P((struct pglist *)); 654 655 /* uvm_swap.c */ 656 void uvm_swap_init __P((void)); 657 658 /* uvm_unix.c */ 659 int uvm_coredump __P((struct proc *, struct vnode *, 660 struct ucred *, struct core *)); 661 int uvm_grow __P((struct proc *, vaddr_t)); 662 /* should only be needed if COMPAT_NETBSD32 is defined */ 663 struct core32; 664 int uvm_coredump32 __P((struct proc *, struct vnode *, 665 struct ucred *, struct core32 *)); 666 667 /* uvm_user.c */ 668 void uvm_deallocate __P((vm_map_t, vaddr_t, vsize_t)); 669 670 /* uvm_vnode.c */ 671 void uvm_vnp_setsize __P((struct vnode *, voff_t)); 672 void uvm_vnp_sync __P((struct mount *)); 673 struct uvm_object *uvn_attach __P((void *, vm_prot_t)); 674 void uvn_findpages __P((struct uvm_object *, voff_t, 675 int *, struct vm_page **, int)); 676 void uvm_vnp_zerorange __P((struct vnode *, off_t, size_t)); 677 void uvm_vnp_asyncget __P((struct vnode *, off_t, size_t)); 678 679 /* kern_malloc.c */ 680 void kmeminit_nkmempages __P((void)); 681 void kmeminit __P((void)); 682 extern int nkmempages; 683 684 #endif /* _KERNEL */ 685 686 #endif /* _UVM_UVM_EXTERN_H_ */ 687
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