uvm_extern.h revision 1.83
1 /* $NetBSD: uvm_extern.h,v 1.83 2003/08/07 16:34:48 agc 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. Neither the name of the University nor the names of its contributors 50 * may be used to endorse or promote products derived from this software 51 * without specific prior written permission. 52 * 53 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 54 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 55 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 56 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 57 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 58 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 59 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 60 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 61 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 63 * SUCH DAMAGE. 64 * 65 * @(#)vm_extern.h 8.5 (Berkeley) 5/3/95 66 */ 67 68 #ifndef _UVM_UVM_EXTERN_H_ 69 #define _UVM_UVM_EXTERN_H_ 70 71 /* 72 * uvm_extern.h: this file defines the external interface to the VM system. 73 * 74 * this should be the only file included by non-VM parts of the kernel 75 * which need access to VM services. if you want to know the interface 76 * to the MI VM layer without knowing the details, this is the file to 77 * learn. 78 * 79 * NOTE: vm system calls are prototyped in syscallargs.h 80 */ 81 82 /* 83 * typedefs, necessary for standard UVM headers. 84 */ 85 86 typedef unsigned int uvm_flag_t; 87 typedef int vm_fault_t; 88 89 typedef int vm_inherit_t; /* XXX: inheritance codes */ 90 typedef off_t voff_t; /* XXX: offset within a uvm_object */ 91 92 /* 93 * defines 94 */ 95 96 /* 97 * the following defines are for uvm_map and functions which call it. 98 */ 99 100 /* protections bits */ 101 #define UVM_PROT_MASK 0x07 /* protection mask */ 102 #define UVM_PROT_NONE 0x00 /* protection none */ 103 #define UVM_PROT_ALL 0x07 /* everything */ 104 #define UVM_PROT_READ 0x01 /* read */ 105 #define UVM_PROT_WRITE 0x02 /* write */ 106 #define UVM_PROT_EXEC 0x04 /* exec */ 107 108 /* protection short codes */ 109 #define UVM_PROT_R 0x01 /* read */ 110 #define UVM_PROT_W 0x02 /* write */ 111 #define UVM_PROT_RW 0x03 /* read-write */ 112 #define UVM_PROT_X 0x04 /* exec */ 113 #define UVM_PROT_RX 0x05 /* read-exec */ 114 #define UVM_PROT_WX 0x06 /* write-exec */ 115 #define UVM_PROT_RWX 0x07 /* read-write-exec */ 116 117 /* 0x08: not used */ 118 119 /* inherit codes */ 120 #define UVM_INH_MASK 0x30 /* inherit mask */ 121 #define UVM_INH_SHARE 0x00 /* "share" */ 122 #define UVM_INH_COPY 0x10 /* "copy" */ 123 #define UVM_INH_NONE 0x20 /* "none" */ 124 #define UVM_INH_DONATE 0x30 /* "donate" << not used */ 125 126 /* 0x40, 0x80: not used */ 127 128 /* bits 0x700: max protection, 0x800: not used */ 129 130 /* bits 0x7000: advice, 0x8000: not used */ 131 /* advice: matches MADV_* from sys/mman.h */ 132 #define UVM_ADV_NORMAL 0x0 /* 'normal' */ 133 #define UVM_ADV_RANDOM 0x1 /* 'random' */ 134 #define UVM_ADV_SEQUENTIAL 0x2 /* 'sequential' */ 135 /* 0x3: will need, 0x4: dontneed */ 136 #define UVM_ADV_MASK 0x7 /* mask */ 137 138 /* mapping flags */ 139 #define UVM_FLAG_FIXED 0x010000 /* find space */ 140 #define UVM_FLAG_OVERLAY 0x020000 /* establish overlay */ 141 #define UVM_FLAG_NOMERGE 0x040000 /* don't merge map entries */ 142 #define UVM_FLAG_COPYONW 0x080000 /* set copy_on_write flag */ 143 #define UVM_FLAG_AMAPPAD 0x100000 /* for bss: pad amap to reduce malloc() */ 144 #define UVM_FLAG_TRYLOCK 0x200000 /* fail if we can not lock map */ 145 #define UVM_FLAG_NOWAIT 0x400000 /* not allowed to sleep */ 146 147 /* macros to extract info */ 148 #define UVM_PROTECTION(X) ((X) & UVM_PROT_MASK) 149 #define UVM_INHERIT(X) (((X) & UVM_INH_MASK) >> 4) 150 #define UVM_MAXPROTECTION(X) (((X) >> 8) & UVM_PROT_MASK) 151 #define UVM_ADVICE(X) (((X) >> 12) & UVM_ADV_MASK) 152 153 #define UVM_MAPFLAG(PROT,MAXPROT,INH,ADVICE,FLAGS) \ 154 ((MAXPROT << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS)) 155 156 /* magic offset value: offset not known(obj) or don't care(!obj) */ 157 #define UVM_UNKNOWN_OFFSET ((voff_t) -1) 158 159 /* 160 * the following defines are for uvm_km_kmemalloc's flags 161 */ 162 #define UVM_KMF_VALLOC 0x1 /* allocate VA only */ 163 #define UVM_KMF_CANFAIL 0x2 /* caller handles failure */ 164 #define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */ 165 #define UVM_KMF_NOWAIT UVM_FLAG_NOWAIT /* not allowed to sleep */ 166 167 /* 168 * the following defines the strategies for uvm_pagealloc_strat() 169 */ 170 #define UVM_PGA_STRAT_NORMAL 0 /* high -> low free list walk */ 171 #define UVM_PGA_STRAT_ONLY 1 /* only specified free list */ 172 #define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */ 173 174 /* 175 * flags for uvm_pagealloc_strat() 176 */ 177 #define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */ 178 #define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */ 179 180 /* 181 * the following defines are for ubc_alloc's flags 182 */ 183 #define UBC_READ 0x01 184 #define UBC_WRITE 0x02 185 #define UBC_FAULTBUSY 0x04 186 187 /* 188 * flags for uvn_findpages(). 189 */ 190 #define UFP_ALL 0x00 191 #define UFP_NOWAIT 0x01 192 #define UFP_NOALLOC 0x02 193 #define UFP_NOCACHE 0x04 194 #define UFP_NORDONLY 0x08 195 #define UFP_DIRTYONLY 0x10 196 #define UFP_BACKWARD 0x20 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 /* 247 * Adding anything before this line will break binary compatibility 248 * with top(1) on NetBSD 1.5. 249 */ 250 251 int ncolors; /* number of page color buckets: must be p-o-2 */ 252 int colormask; /* color bucket mask */ 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 mappings */ 258 int filepages; /* number of pages used by cached file data */ 259 int execpages; /* number of pages used by cached exec date */ 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 execmin; /* min threshold for executable pages */ 268 int filemin; /* min threshold for file pages */ 269 int anonminpct; /* min percent anon pages */ 270 int execminpct; /* min percent executable pages */ 271 int fileminpct; /* min percent file pages */ 272 int anonmax; /* max threshold for anon pages */ 273 int execmax; /* max threshold for executable pages */ 274 int filemax; /* max threshold for file pages */ 275 int anonmaxpct; /* max percent anon pages */ 276 int execmaxpct; /* max percent executable pages */ 277 int filemaxpct; /* max percent file 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 */ 313 314 /* fault subcounters */ 315 int fltnoram; /* number of times fault was out of ram */ 316 int fltnoanon; /* number of times fault was out of anons */ 317 int fltpgwait; /* number of times fault had to wait on a page */ 318 int fltpgrele; /* number of times fault found a released page */ 319 int fltrelck; /* number of times fault relock called */ 320 int fltrelckok; /* number of times fault relock is a success */ 321 int fltanget; /* number of times fault gets anon page */ 322 int fltanretry; /* number of times fault retrys an anon get */ 323 int fltamcopy; /* number of times fault clears "needs copy" */ 324 int fltnamap; /* number of times fault maps a neighbor anon page */ 325 int fltnomap; /* number of times fault maps a neighbor obj page */ 326 int fltlget; /* number of times fault does a locked pgo_get */ 327 int fltget; /* number of times fault does an unlocked get */ 328 int flt_anon; /* number of times fault anon (case 1a) */ 329 int flt_acow; /* number of times fault anon cow (case 1b) */ 330 int flt_obj; /* number of times fault is on object page (2a) */ 331 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 332 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 333 334 /* daemon counters */ 335 int pdwoke; /* number of times daemon woke up */ 336 int pdrevs; /* number of times daemon rev'd clock hand */ 337 int pdswout; /* number of times daemon called for swapout */ 338 int pdfreed; /* number of pages daemon freed since boot */ 339 int pdscans; /* number of pages daemon scanned since boot */ 340 int pdanscan; /* number of anonymous pages scanned by daemon */ 341 int pdobscan; /* number of object pages scanned by daemon */ 342 int pdreact; /* number of pages daemon reactivated since boot */ 343 int pdbusy; /* number of times daemon found a busy page */ 344 int pdpageouts; /* number of times daemon started a pageout */ 345 int pdpending; /* number of times daemon got a pending pagout */ 346 int pddeact; /* number of pages daemon deactivates */ 347 int pdreanon; /* anon pages reactivated due to thresholds */ 348 int pdrefile; /* file pages reactivated due to thresholds */ 349 int pdreexec; /* executable pages reactivated due to thresholds */ 350 }; 351 352 /* 353 * The following structure is 64-bit alignment safe. New elements 354 * should only be added to the end of this structure so binary 355 * compatibility can be preserved. 356 */ 357 struct uvmexp_sysctl { 358 int64_t pagesize; 359 int64_t pagemask; 360 int64_t pageshift; 361 int64_t npages; 362 int64_t free; 363 int64_t active; 364 int64_t inactive; 365 int64_t paging; 366 int64_t wired; 367 int64_t zeropages; 368 int64_t reserve_pagedaemon; 369 int64_t reserve_kernel; 370 int64_t freemin; 371 int64_t freetarg; 372 int64_t inactarg; 373 int64_t wiredmax; 374 int64_t nswapdev; 375 int64_t swpages; 376 int64_t swpginuse; 377 int64_t swpgonly; 378 int64_t nswget; 379 int64_t nanon; 380 int64_t nanonneeded; 381 int64_t nfreeanon; 382 int64_t faults; 383 int64_t traps; 384 int64_t intrs; 385 int64_t swtch; 386 int64_t softs; 387 int64_t syscalls; 388 int64_t pageins; 389 int64_t swapins; 390 int64_t swapouts; 391 int64_t pgswapin; 392 int64_t pgswapout; 393 int64_t forks; 394 int64_t forks_ppwait; 395 int64_t forks_sharevm; 396 int64_t pga_zerohit; 397 int64_t pga_zeromiss; 398 int64_t zeroaborts; 399 int64_t fltnoram; 400 int64_t fltnoanon; 401 int64_t fltpgwait; 402 int64_t fltpgrele; 403 int64_t fltrelck; 404 int64_t fltrelckok; 405 int64_t fltanget; 406 int64_t fltanretry; 407 int64_t fltamcopy; 408 int64_t fltnamap; 409 int64_t fltnomap; 410 int64_t fltlget; 411 int64_t fltget; 412 int64_t flt_anon; 413 int64_t flt_acow; 414 int64_t flt_obj; 415 int64_t flt_prcopy; 416 int64_t flt_przero; 417 int64_t pdwoke; 418 int64_t pdrevs; 419 int64_t pdswout; 420 int64_t pdfreed; 421 int64_t pdscans; 422 int64_t pdanscan; 423 int64_t pdobscan; 424 int64_t pdreact; 425 int64_t pdbusy; 426 int64_t pdpageouts; 427 int64_t pdpending; 428 int64_t pddeact; 429 int64_t anonpages; 430 int64_t filepages; 431 int64_t execpages; 432 int64_t colorhit; 433 int64_t colormiss; 434 int64_t ncolors; 435 }; 436 437 #ifdef _KERNEL 438 extern struct uvmexp uvmexp; 439 #endif 440 441 /* 442 * Finally, bring in standard UVM headers. 443 */ 444 #include <sys/vmmeter.h> 445 #include <sys/queue.h> 446 #include <uvm/uvm_param.h> 447 #include <sys/lock.h> 448 #include <uvm/uvm_prot.h> 449 #include <uvm/uvm_page.h> 450 #include <uvm/uvm_pmap.h> 451 #include <uvm/uvm_map.h> 452 #include <uvm/uvm_fault.h> 453 #include <uvm/uvm_pager.h> 454 455 /* 456 * Shareable process virtual address space. 457 * May eventually be merged with vm_map. 458 * Several fields are temporary (text, data stuff). 459 */ 460 struct vmspace { 461 struct vm_map vm_map; /* VM address map */ 462 int vm_refcnt; /* number of references */ 463 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 464 /* we copy from vm_startcopy to the end of the structure on fork */ 465 #define vm_startcopy vm_rssize 466 segsz_t vm_rssize; /* current resident set size in pages */ 467 segsz_t vm_swrss; /* resident set size before last swap */ 468 segsz_t vm_tsize; /* text size (pages) XXX */ 469 segsz_t vm_dsize; /* data size (pages) XXX */ 470 segsz_t vm_ssize; /* stack size (pages) */ 471 caddr_t vm_taddr; /* user virtual address of text XXX */ 472 caddr_t vm_daddr; /* user virtual address of data XXX */ 473 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 474 caddr_t vm_minsaddr; /* user VA at top of stack */ 475 }; 476 477 #ifdef _KERNEL 478 479 /* 480 * used to keep state while iterating over the map for a core dump. 481 */ 482 struct uvm_coredump_state { 483 void *cookie; /* opaque for the caller */ 484 vaddr_t start; /* start of region */ 485 vaddr_t end; /* end of region */ 486 vm_prot_t prot; /* protection of region */ 487 int flags; /* flags; see below */ 488 }; 489 490 #define UVM_COREDUMP_STACK 0x01 /* region is user stack */ 491 #define UVM_COREDUMP_NODUMP 0x02 /* don't actually dump this region */ 492 493 /* 494 * the various kernel maps, owned by MD code 495 */ 496 extern struct vm_map *exec_map; 497 extern struct vm_map *kernel_map; 498 extern struct vm_map *kmem_map; 499 extern struct vm_map *mb_map; 500 extern struct vm_map *phys_map; 501 502 /* 503 * macros 504 */ 505 506 /* zalloc zeros memory, alloc does not */ 507 #define uvm_km_zalloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,TRUE) 508 #define uvm_km_alloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,FALSE) 509 510 #endif /* _KERNEL */ 511 512 #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 513 514 struct buf; 515 struct loadavg; 516 struct proc; 517 struct pmap; 518 struct vmspace; 519 struct vmtotal; 520 struct mount; 521 struct vnode; 522 struct core; 523 524 #ifdef _KERNEL 525 #include <sys/mallocvar.h> 526 MALLOC_DECLARE(M_VMMAP); 527 MALLOC_DECLARE(M_VMPMAP); 528 529 /* vm_machdep.c */ 530 void vmapbuf __P((struct buf *, vsize_t)); 531 void vunmapbuf __P((struct buf *, vsize_t)); 532 void pagemove __P((caddr_t, caddr_t, size_t)); 533 #ifndef cpu_swapin 534 void cpu_swapin __P((struct lwp *)); 535 #endif 536 #ifndef cpu_swapout 537 void cpu_swapout __P((struct lwp *)); 538 #endif 539 540 /* uvm_aobj.c */ 541 struct uvm_object *uao_create __P((vsize_t, int)); 542 void uao_detach __P((struct uvm_object *)); 543 void uao_detach_locked __P((struct uvm_object *)); 544 void uao_reference __P((struct uvm_object *)); 545 void uao_reference_locked __P((struct uvm_object *)); 546 547 /* uvm_bio.c */ 548 void ubc_init __P((void)); 549 void * ubc_alloc __P((struct uvm_object *, voff_t, vsize_t *, 550 int)); 551 void ubc_release __P((void *, int)); 552 void ubc_flush __P((struct uvm_object *, voff_t, voff_t)); 553 554 /* uvm_fault.c */ 555 int uvm_fault __P((struct vm_map *, vaddr_t, vm_fault_t, 556 vm_prot_t)); 557 /* handle a page fault */ 558 559 /* uvm_glue.c */ 560 #if defined(KGDB) 561 void uvm_chgkprot __P((caddr_t, size_t, int)); 562 #endif 563 void uvm_proc_fork __P((struct proc *, struct proc *, boolean_t)); 564 void uvm_lwp_fork __P((struct lwp *, struct lwp *, 565 void *, size_t, void (*)(void *), void *)); 566 int uvm_coredump_walkmap __P((struct proc *, 567 struct vnode *, struct ucred *, 568 int (*)(struct proc *, struct vnode *, 569 struct ucred *, 570 struct uvm_coredump_state *), void *)); 571 void uvm_proc_exit __P((struct proc *)); 572 void uvm_lwp_exit __P((struct lwp *)); 573 void uvm_init_limits __P((struct proc *)); 574 boolean_t uvm_kernacc __P((caddr_t, size_t, int)); 575 __dead void uvm_scheduler __P((void)) __attribute__((noreturn)); 576 void uvm_swapin __P((struct lwp *)); 577 boolean_t uvm_uarea_alloc(vaddr_t *); 578 void uvm_uarea_free(vaddr_t); 579 boolean_t uvm_useracc __P((caddr_t, size_t, int)); 580 int uvm_vslock __P((struct proc *, caddr_t, size_t, 581 vm_prot_t)); 582 void uvm_vsunlock __P((struct proc *, caddr_t, size_t)); 583 584 585 /* uvm_init.c */ 586 void uvm_init __P((void)); 587 588 /* uvm_io.c */ 589 int uvm_io __P((struct vm_map *, struct uio *)); 590 591 /* uvm_km.c */ 592 vaddr_t uvm_km_alloc1 __P((struct vm_map *, vsize_t, 593 boolean_t)); 594 void uvm_km_free __P((struct vm_map *, vaddr_t, vsize_t)); 595 void uvm_km_free_wakeup __P((struct vm_map *, vaddr_t, 596 vsize_t)); 597 vaddr_t uvm_km_kmemalloc __P((struct vm_map *, struct 598 uvm_object *, vsize_t, int)); 599 struct vm_map *uvm_km_suballoc __P((struct vm_map *, vaddr_t *, 600 vaddr_t *, vsize_t, int, boolean_t, 601 struct vm_map *)); 602 vaddr_t uvm_km_valloc __P((struct vm_map *, vsize_t)); 603 vaddr_t uvm_km_valloc_align __P((struct vm_map *, vsize_t, 604 vsize_t)); 605 vaddr_t uvm_km_valloc_wait __P((struct vm_map *, vsize_t)); 606 vaddr_t uvm_km_valloc_prefer_wait __P((struct vm_map *, vsize_t, 607 voff_t)); 608 vaddr_t uvm_km_alloc_poolpage1 __P((struct vm_map *, 609 struct uvm_object *, boolean_t)); 610 void uvm_km_free_poolpage1 __P((struct vm_map *, vaddr_t)); 611 612 #define uvm_km_alloc_poolpage(waitok) \ 613 uvm_km_alloc_poolpage1(kmem_map, NULL, (waitok)) 614 #define uvm_km_free_poolpage(addr) \ 615 uvm_km_free_poolpage1(kmem_map, (addr)) 616 617 /* uvm_map.c */ 618 int uvm_map __P((struct vm_map *, vaddr_t *, vsize_t, 619 struct uvm_object *, voff_t, vsize_t, 620 uvm_flag_t)); 621 int uvm_map_pageable __P((struct vm_map *, vaddr_t, 622 vaddr_t, boolean_t, int)); 623 int uvm_map_pageable_all __P((struct vm_map *, int, 624 vsize_t)); 625 boolean_t uvm_map_checkprot __P((struct vm_map *, vaddr_t, 626 vaddr_t, vm_prot_t)); 627 int uvm_map_protect __P((struct vm_map *, vaddr_t, 628 vaddr_t, vm_prot_t, boolean_t)); 629 struct vmspace *uvmspace_alloc __P((vaddr_t, vaddr_t)); 630 void uvmspace_init __P((struct vmspace *, struct pmap *, 631 vaddr_t, vaddr_t)); 632 void uvmspace_exec __P((struct lwp *, vaddr_t, vaddr_t)); 633 struct vmspace *uvmspace_fork __P((struct vmspace *)); 634 void uvmspace_free __P((struct vmspace *)); 635 void uvmspace_share __P((struct proc *, struct proc *)); 636 void uvmspace_unshare __P((struct lwp *)); 637 638 639 /* uvm_meter.c */ 640 void uvm_meter __P((void)); 641 int uvm_sysctl __P((int *, u_int, void *, size_t *, 642 void *, size_t, struct proc *)); 643 644 /* uvm_mmap.c */ 645 int uvm_mmap __P((struct vm_map *, vaddr_t *, vsize_t, 646 vm_prot_t, vm_prot_t, int, 647 void *, voff_t, vsize_t)); 648 649 /* uvm_page.c */ 650 struct vm_page *uvm_pagealloc_strat __P((struct uvm_object *, 651 voff_t, struct vm_anon *, int, int, int)); 652 #define uvm_pagealloc(obj, off, anon, flags) \ 653 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 654 UVM_PGA_STRAT_NORMAL, 0) 655 void uvm_pagerealloc __P((struct vm_page *, 656 struct uvm_object *, voff_t)); 657 /* Actually, uvm_page_physload takes PF#s which need their own type */ 658 void uvm_page_physload __P((paddr_t, paddr_t, paddr_t, 659 paddr_t, int)); 660 void uvm_setpagesize __P((void)); 661 662 /* uvm_pager.c */ 663 void uvm_aio_biodone1 __P((struct buf *)); 664 void uvm_aio_biodone __P((struct buf *)); 665 void uvm_aio_aiodone __P((struct buf *)); 666 667 /* uvm_pdaemon.c */ 668 void uvm_pageout __P((void *)); 669 void uvm_aiodone_daemon __P((void *)); 670 671 /* uvm_pglist.c */ 672 int uvm_pglistalloc __P((psize_t, paddr_t, paddr_t, 673 paddr_t, paddr_t, struct pglist *, int, int)); 674 void uvm_pglistfree __P((struct pglist *)); 675 676 /* uvm_swap.c */ 677 void uvm_swap_init __P((void)); 678 679 /* uvm_unix.c */ 680 int uvm_grow __P((struct proc *, vaddr_t)); 681 682 /* uvm_user.c */ 683 void uvm_deallocate __P((struct vm_map *, vaddr_t, vsize_t)); 684 685 /* uvm_vnode.c */ 686 void uvm_vnp_setsize __P((struct vnode *, voff_t)); 687 void uvm_vnp_sync __P((struct mount *)); 688 struct uvm_object *uvn_attach __P((void *, vm_prot_t)); 689 int uvn_findpages __P((struct uvm_object *, voff_t, 690 int *, struct vm_page **, int)); 691 void uvm_vnp_zerorange __P((struct vnode *, off_t, size_t)); 692 693 /* kern_malloc.c */ 694 void kmeminit_nkmempages __P((void)); 695 void kmeminit __P((void)); 696 extern int nkmempages; 697 698 #endif /* _KERNEL */ 699 700 #endif /* _UVM_UVM_EXTERN_H_ */ 701
Indexes created Sat Sep 20 22:09:52 GMT 2025