1 /* $NetBSD: uvm_extern.h,v 1.71 2002/05/17 22:00:50 enami 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 mappings */ 260 int filepages; /* number of pages used by cached file data */ 261 int execpages; /* number of pages used by cached exec date */ 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 execmin; /* min threshold for executable pages */ 270 int filemin; /* min threshold for file pages */ 271 int anonminpct; /* min percent anon pages */ 272 int execminpct; /* min percent executable pages */ 273 int fileminpct; /* min percent file pages */ 274 int anonmax; /* max threshold for anon pages */ 275 int execmax; /* max threshold for executable pages */ 276 int filemax; /* max threshold for file pages */ 277 int anonmaxpct; /* max percent anon pages */ 278 int execmaxpct; /* max percent executable pages */ 279 int filemaxpct; /* max percent file pages */ 280 281 /* swap */ 282 int nswapdev; /* number of configured swap devices in system */ 283 int swpages; /* number of PAGE_SIZE'ed swap pages */ 284 int swpginuse; /* number of swap pages in use */ 285 int swpgonly; /* number of swap pages in use, not also in RAM */ 286 int nswget; /* number of times fault calls uvm_swap_get() */ 287 int nanon; /* number total of anon's in system */ 288 int nanonneeded;/* number of anons currently needed */ 289 int nfreeanon; /* number of free anon's */ 290 291 /* stat counters */ 292 int faults; /* page fault count */ 293 int traps; /* trap count */ 294 int intrs; /* interrupt count */ 295 int swtch; /* context switch count */ 296 int softs; /* software interrupt count */ 297 int syscalls; /* system calls */ 298 int pageins; /* pagein operation count */ 299 /* pageouts are in pdpageouts below */ 300 int swapins; /* swapins */ 301 int swapouts; /* swapouts */ 302 int pgswapin; /* pages swapped in */ 303 int pgswapout; /* pages swapped out */ 304 int forks; /* forks */ 305 int forks_ppwait; /* forks where parent waits */ 306 int forks_sharevm; /* forks where vmspace is shared */ 307 int pga_zerohit; /* pagealloc where zero wanted and zero 308 was available */ 309 int pga_zeromiss; /* pagealloc where zero wanted and zero 310 not available */ 311 int zeroaborts; /* number of times page zeroing was 312 aborted */ 313 int colorhit; /* pagealloc where we got optimal color */ 314 int colormiss; /* pagealloc where we didn't */ 315 316 /* fault subcounters */ 317 int fltnoram; /* number of times fault was out of ram */ 318 int fltnoanon; /* number of times fault was out of anons */ 319 int fltpgwait; /* number of times fault had to wait on a page */ 320 int fltpgrele; /* number of times fault found a released page */ 321 int fltrelck; /* number of times fault relock called */ 322 int fltrelckok; /* number of times fault relock is a success */ 323 int fltanget; /* number of times fault gets anon page */ 324 int fltanretry; /* number of times fault retrys an anon get */ 325 int fltamcopy; /* number of times fault clears "needs copy" */ 326 int fltnamap; /* number of times fault maps a neighbor anon page */ 327 int fltnomap; /* number of times fault maps a neighbor obj page */ 328 int fltlget; /* number of times fault does a locked pgo_get */ 329 int fltget; /* number of times fault does an unlocked get */ 330 int flt_anon; /* number of times fault anon (case 1a) */ 331 int flt_acow; /* number of times fault anon cow (case 1b) */ 332 int flt_obj; /* number of times fault is on object page (2a) */ 333 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 334 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 335 336 /* daemon counters */ 337 int pdwoke; /* number of times daemon woke up */ 338 int pdrevs; /* number of times daemon rev'd clock hand */ 339 int pdswout; /* number of times daemon called for swapout */ 340 int pdfreed; /* number of pages daemon freed since boot */ 341 int pdscans; /* number of pages daemon scaned since boot */ 342 int pdanscan; /* number of anonymous pages scanned by daemon */ 343 int pdobscan; /* number of object pages scanned by daemon */ 344 int pdreact; /* number of pages daemon reactivated since boot */ 345 int pdbusy; /* number of times daemon found a busy page */ 346 int pdpageouts; /* number of times daemon started a pageout */ 347 int pdpending; /* number of times daemon got a pending pagout */ 348 int pddeact; /* number of pages daemon deactivates */ 349 int pdreanon; /* anon pages reactivated due to thresholds */ 350 int pdrefile; /* file pages reactivated due to thresholds */ 351 int pdreexec; /* executable pages reactivated due to thresholds */ 352 }; 353 354 /* 355 * The following structure is 64-bit alignment safe. New elements 356 * should only be added to the end of this structure so binary 357 * compatibility can be preserved. 358 */ 359 struct uvmexp_sysctl { 360 int64_t pagesize; 361 int64_t pagemask; 362 int64_t pageshift; 363 int64_t npages; 364 int64_t free; 365 int64_t active; 366 int64_t inactive; 367 int64_t paging; 368 int64_t wired; 369 int64_t zeropages; 370 int64_t reserve_pagedaemon; 371 int64_t reserve_kernel; 372 int64_t freemin; 373 int64_t freetarg; 374 int64_t inactarg; 375 int64_t wiredmax; 376 int64_t nswapdev; 377 int64_t swpages; 378 int64_t swpginuse; 379 int64_t swpgonly; 380 int64_t nswget; 381 int64_t nanon; 382 int64_t nanonneeded; 383 int64_t nfreeanon; 384 int64_t faults; 385 int64_t traps; 386 int64_t intrs; 387 int64_t swtch; 388 int64_t softs; 389 int64_t syscalls; 390 int64_t pageins; 391 int64_t swapins; 392 int64_t swapouts; 393 int64_t pgswapin; 394 int64_t pgswapout; 395 int64_t forks; 396 int64_t forks_ppwait; 397 int64_t forks_sharevm; 398 int64_t pga_zerohit; 399 int64_t pga_zeromiss; 400 int64_t zeroaborts; 401 int64_t fltnoram; 402 int64_t fltnoanon; 403 int64_t fltpgwait; 404 int64_t fltpgrele; 405 int64_t fltrelck; 406 int64_t fltrelckok; 407 int64_t fltanget; 408 int64_t fltanretry; 409 int64_t fltamcopy; 410 int64_t fltnamap; 411 int64_t fltnomap; 412 int64_t fltlget; 413 int64_t fltget; 414 int64_t flt_anon; 415 int64_t flt_acow; 416 int64_t flt_obj; 417 int64_t flt_prcopy; 418 int64_t flt_przero; 419 int64_t pdwoke; 420 int64_t pdrevs; 421 int64_t pdswout; 422 int64_t pdfreed; 423 int64_t pdscans; 424 int64_t pdanscan; 425 int64_t pdobscan; 426 int64_t pdreact; 427 int64_t pdbusy; 428 int64_t pdpageouts; 429 int64_t pdpending; 430 int64_t pddeact; 431 int64_t anonpages; 432 int64_t filepages; 433 int64_t execpages; 434 int64_t colorhit; 435 int64_t colormiss; 436 int64_t ncolors; 437 }; 438 439 #ifdef _KERNEL 440 extern struct uvmexp uvmexp; 441 #endif 442 443 /* 444 * Finally, bring in standard UVM headers. 445 */ 446 #include <sys/vmmeter.h> 447 #include <sys/queue.h> 448 #include <uvm/uvm_param.h> 449 #include <sys/lock.h> 450 #include <uvm/uvm_prot.h> 451 #include <uvm/uvm_page.h> 452 #include <uvm/uvm_pmap.h> 453 #include <uvm/uvm_map.h> 454 #include <uvm/uvm_fault.h> 455 #include <uvm/uvm_pager.h> 456 457 /* 458 * Shareable process virtual address space. 459 * May eventually be merged with vm_map. 460 * Several fields are temporary (text, data stuff). 461 */ 462 struct vmspace { 463 struct vm_map vm_map; /* VM address map */ 464 int vm_refcnt; /* number of references */ 465 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 466 /* we copy from vm_startcopy to the end of the structure on fork */ 467 #define vm_startcopy vm_rssize 468 segsz_t vm_rssize; /* current resident set size in pages */ 469 segsz_t vm_swrss; /* resident set size before last swap */ 470 segsz_t vm_tsize; /* text size (pages) XXX */ 471 segsz_t vm_dsize; /* data size (pages) XXX */ 472 segsz_t vm_ssize; /* stack size (pages) */ 473 caddr_t vm_taddr; /* user virtual address of text XXX */ 474 caddr_t vm_daddr; /* user virtual address of data XXX */ 475 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 476 caddr_t vm_minsaddr; /* user VA at top of stack */ 477 }; 478 479 #ifdef _KERNEL 480 481 /* 482 * used to keep state while iterating over the map for a core dump. 483 */ 484 struct uvm_coredump_state { 485 void *cookie; /* opaque for the caller */ 486 vaddr_t start; /* start of region */ 487 vaddr_t end; /* end of region */ 488 vm_prot_t prot; /* protection of region */ 489 int flags; /* flags; see below */ 490 }; 491 492 #define UVM_COREDUMP_STACK 0x01 /* region is user stack */ 493 #define UVM_COREDUMP_NODUMP 0x02 /* don't actually dump this region */ 494 495 /* 496 * the various kernel maps, owned by MD code 497 */ 498 extern struct vm_map *exec_map; 499 extern struct vm_map *kernel_map; 500 extern struct vm_map *kmem_map; 501 extern struct vm_map *mb_map; 502 extern struct vm_map *phys_map; 503 504 /* 505 * macros 506 */ 507 508 /* zalloc zeros memory, alloc does not */ 509 #define uvm_km_zalloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,TRUE) 510 #define uvm_km_alloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,FALSE) 511 512 #endif /* _KERNEL */ 513 514 #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 515 516 struct buf; 517 struct loadavg; 518 struct proc; 519 struct pmap; 520 struct vmspace; 521 struct vmtotal; 522 struct mount; 523 struct vnode; 524 struct core; 525 526 #ifdef _KERNEL 527 528 /* vm_machdep.c */ 529 void vmapbuf __P((struct buf *, vsize_t)); 530 void vunmapbuf __P((struct buf *, vsize_t)); 531 void pagemove __P((caddr_t, caddr_t, size_t)); 532 #ifndef cpu_swapin 533 void cpu_swapin __P((struct proc *)); 534 #endif 535 #ifndef cpu_swapout 536 void cpu_swapout __P((struct proc *)); 537 #endif 538 539 /* uvm_aobj.c */ 540 struct uvm_object *uao_create __P((vsize_t, int)); 541 void uao_detach __P((struct uvm_object *)); 542 void uao_detach_locked __P((struct uvm_object *)); 543 void uao_reference __P((struct uvm_object *)); 544 void uao_reference_locked __P((struct uvm_object *)); 545 546 /* uvm_bio.c */ 547 void ubc_init __P((void)); 548 void * ubc_alloc __P((struct uvm_object *, voff_t, vsize_t *, 549 int)); 550 void ubc_release __P((void *, int)); 551 void ubc_flush __P((struct uvm_object *, voff_t, voff_t)); 552 553 /* uvm_fault.c */ 554 int uvm_fault __P((struct vm_map *, vaddr_t, vm_fault_t, 555 vm_prot_t)); 556 /* handle a page fault */ 557 558 /* uvm_glue.c */ 559 #if defined(KGDB) 560 void uvm_chgkprot __P((caddr_t, size_t, int)); 561 #endif 562 int uvm_coredump_walkmap __P((struct proc *, 563 struct vnode *, struct ucred *, 564 int (*)(struct proc *, struct vnode *, 565 struct ucred *, 566 struct uvm_coredump_state *), void *)); 567 void uvm_fork __P((struct proc *, struct proc *, boolean_t, 568 void *, size_t, void (*)(void *), void *)); 569 void uvm_exit __P((struct proc *)); 570 void uvm_init_limits __P((struct proc *)); 571 boolean_t uvm_kernacc __P((caddr_t, size_t, int)); 572 __dead void uvm_scheduler __P((void)) __attribute__((noreturn)); 573 void uvm_swapin __P((struct proc *)); 574 boolean_t uvm_useracc __P((caddr_t, size_t, int)); 575 int uvm_vslock __P((struct proc *, caddr_t, size_t, 576 vm_prot_t)); 577 void uvm_vsunlock __P((struct proc *, caddr_t, size_t)); 578 579 580 /* uvm_init.c */ 581 void uvm_init __P((void)); 582 583 /* uvm_io.c */ 584 int uvm_io __P((struct vm_map *, struct uio *)); 585 586 /* uvm_km.c */ 587 vaddr_t uvm_km_alloc1 __P((struct vm_map *, vsize_t, 588 boolean_t)); 589 void uvm_km_free __P((struct vm_map *, vaddr_t, vsize_t)); 590 void uvm_km_free_wakeup __P((struct vm_map *, vaddr_t, 591 vsize_t)); 592 vaddr_t uvm_km_kmemalloc __P((struct vm_map *, struct 593 uvm_object *, vsize_t, int)); 594 struct vm_map *uvm_km_suballoc __P((struct vm_map *, vaddr_t *, 595 vaddr_t *, vsize_t, int, boolean_t, 596 struct vm_map *)); 597 vaddr_t uvm_km_valloc __P((struct vm_map *, vsize_t)); 598 vaddr_t uvm_km_valloc_align __P((struct vm_map *, vsize_t, 599 vsize_t)); 600 vaddr_t uvm_km_valloc_wait __P((struct vm_map *, vsize_t)); 601 vaddr_t uvm_km_valloc_prefer_wait __P((struct vm_map *, vsize_t, 602 voff_t)); 603 vaddr_t uvm_km_alloc_poolpage1 __P((struct vm_map *, 604 struct uvm_object *, boolean_t)); 605 void uvm_km_free_poolpage1 __P((struct vm_map *, vaddr_t)); 606 607 #define uvm_km_alloc_poolpage(waitok) \ 608 uvm_km_alloc_poolpage1(kmem_map, NULL, (waitok)) 609 #define uvm_km_free_poolpage(addr) \ 610 uvm_km_free_poolpage1(kmem_map, (addr)) 611 612 /* uvm_map.c */ 613 int uvm_map __P((struct vm_map *, vaddr_t *, vsize_t, 614 struct uvm_object *, voff_t, vsize_t, 615 uvm_flag_t)); 616 int uvm_map_pageable __P((struct vm_map *, vaddr_t, 617 vaddr_t, boolean_t, int)); 618 int uvm_map_pageable_all __P((struct vm_map *, int, 619 vsize_t)); 620 boolean_t uvm_map_checkprot __P((struct vm_map *, vaddr_t, 621 vaddr_t, vm_prot_t)); 622 int uvm_map_protect __P((struct vm_map *, vaddr_t, 623 vaddr_t, vm_prot_t, boolean_t)); 624 struct vmspace *uvmspace_alloc __P((vaddr_t, vaddr_t)); 625 void uvmspace_init __P((struct vmspace *, struct pmap *, 626 vaddr_t, vaddr_t)); 627 void uvmspace_exec __P((struct proc *, vaddr_t, vaddr_t)); 628 struct vmspace *uvmspace_fork __P((struct vmspace *)); 629 void uvmspace_free __P((struct vmspace *)); 630 void uvmspace_share __P((struct proc *, struct proc *)); 631 void uvmspace_unshare __P((struct proc *)); 632 633 634 /* uvm_meter.c */ 635 void uvm_meter __P((void)); 636 int uvm_sysctl __P((int *, u_int, void *, size_t *, 637 void *, size_t, struct proc *)); 638 639 /* uvm_mmap.c */ 640 int uvm_mmap __P((struct vm_map *, vaddr_t *, vsize_t, 641 vm_prot_t, vm_prot_t, int, 642 void *, voff_t, vsize_t)); 643 644 /* uvm_page.c */ 645 struct vm_page *uvm_pagealloc_strat __P((struct uvm_object *, 646 voff_t, struct vm_anon *, int, int, int)); 647 #define uvm_pagealloc(obj, off, anon, flags) \ 648 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 649 UVM_PGA_STRAT_NORMAL, 0) 650 void uvm_pagerealloc __P((struct vm_page *, 651 struct uvm_object *, voff_t)); 652 /* Actually, uvm_page_physload takes PF#s which need their own type */ 653 void uvm_page_physload __P((paddr_t, paddr_t, paddr_t, 654 paddr_t, int)); 655 void uvm_setpagesize __P((void)); 656 657 /* uvm_pager.c */ 658 void uvm_aio_biodone1 __P((struct buf *)); 659 void uvm_aio_biodone __P((struct buf *)); 660 void uvm_aio_aiodone __P((struct buf *)); 661 662 /* uvm_pdaemon.c */ 663 void uvm_pageout __P((void *)); 664 void uvm_aiodone_daemon __P((void *)); 665 666 /* uvm_pglist.c */ 667 int uvm_pglistalloc __P((psize_t, paddr_t, paddr_t, 668 paddr_t, paddr_t, struct pglist *, int, int)); 669 void uvm_pglistfree __P((struct pglist *)); 670 671 /* uvm_swap.c */ 672 void uvm_swap_init __P((void)); 673 674 /* uvm_unix.c */ 675 int uvm_grow __P((struct proc *, vaddr_t)); 676 677 /* uvm_user.c */ 678 void uvm_deallocate __P((struct vm_map *, vaddr_t, vsize_t)); 679 680 /* uvm_vnode.c */ 681 void uvm_vnp_setsize __P((struct vnode *, voff_t)); 682 void uvm_vnp_sync __P((struct mount *)); 683 struct uvm_object *uvn_attach __P((void *, vm_prot_t)); 684 int uvn_findpages __P((struct uvm_object *, voff_t, 685 int *, struct vm_page **, int)); 686 void uvm_vnp_zerorange __P((struct vnode *, off_t, size_t)); 687 688 /* kern_malloc.c */ 689 void kmeminit_nkmempages __P((void)); 690 void kmeminit __P((void)); 691 extern int nkmempages; 692 693 #endif /* _KERNEL */ 694 695 #endif /* _UVM_UVM_EXTERN_H_ */ 696