uvm_extern.h revision 1.79
1 /* $NetBSD: uvm_extern.h,v 1.79 2003/05/08 18:13:27 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 /* 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 #define UVM_FLAG_NOWAIT 0x400000 /* not allowed to sleep */ 150 151 /* macros to extract info */ 152 #define UVM_PROTECTION(X) ((X) & UVM_PROT_MASK) 153 #define UVM_INHERIT(X) (((X) & UVM_INH_MASK) >> 4) 154 #define UVM_MAXPROTECTION(X) (((X) >> 8) & UVM_PROT_MASK) 155 #define UVM_ADVICE(X) (((X) >> 12) & UVM_ADV_MASK) 156 157 #define UVM_MAPFLAG(PROT,MAXPROT,INH,ADVICE,FLAGS) \ 158 ((MAXPROT << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS)) 159 160 /* magic offset value: offset not known(obj) or don't care(!obj) */ 161 #define UVM_UNKNOWN_OFFSET ((voff_t) -1) 162 163 /* 164 * the following defines are for uvm_km_kmemalloc's flags 165 */ 166 #define UVM_KMF_VALLOC 0x1 /* allocate VA only */ 167 #define UVM_KMF_CANFAIL 0x2 /* caller handles failure */ 168 #define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */ 169 #define UVM_KMF_NOWAIT UVM_FLAG_NOWAIT /* not allowed to sleep */ 170 171 /* 172 * the following defines the strategies for uvm_pagealloc_strat() 173 */ 174 #define UVM_PGA_STRAT_NORMAL 0 /* high -> low free list walk */ 175 #define UVM_PGA_STRAT_ONLY 1 /* only specified free list */ 176 #define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */ 177 178 /* 179 * flags for uvm_pagealloc_strat() 180 */ 181 #define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */ 182 #define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */ 183 184 /* 185 * the following defines are for ubc_alloc's flags 186 */ 187 #define UBC_READ 0x01 188 #define UBC_WRITE 0x02 189 #define UBC_FAULTBUSY 0x04 190 191 /* 192 * flags for uvn_findpages(). 193 */ 194 #define UFP_ALL 0x00 195 #define UFP_NOWAIT 0x01 196 #define UFP_NOALLOC 0x02 197 #define UFP_NOCACHE 0x04 198 #define UFP_NORDONLY 0x08 199 #define UFP_DIRTYONLY 0x10 200 #define UFP_BACKWARD 0x20 201 202 /* 203 * lockflags that control the locking behavior of various functions. 204 */ 205 #define UVM_LK_ENTER 0x00000001 /* map locked on entry */ 206 #define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */ 207 208 /* 209 * structures 210 */ 211 212 struct core; 213 struct mount; 214 struct pglist; 215 struct proc; 216 struct ucred; 217 struct uio; 218 struct uvm_object; 219 struct vm_anon; 220 struct vmspace; 221 struct pmap; 222 struct vnode; 223 struct pool; 224 struct simplelock; 225 struct vm_map_entry; 226 struct vm_map; 227 struct vm_page; 228 229 extern struct pool *uvm_aiobuf_pool; 230 231 /* 232 * uvmexp: global data structures that are exported to parts of the kernel 233 * other than the vm system. 234 */ 235 236 struct uvmexp { 237 /* vm_page constants */ 238 int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */ 239 int pagemask; /* page mask */ 240 int pageshift; /* page shift */ 241 242 /* vm_page counters */ 243 int npages; /* number of pages we manage */ 244 int free; /* number of free pages */ 245 int active; /* number of active pages */ 246 int inactive; /* number of pages that we free'd but may want back */ 247 int paging; /* number of pages in the process of being paged out */ 248 int wired; /* number of wired pages */ 249 250 /* 251 * Adding anything before this line will break binary compatibility 252 * with top(1) on NetBSD 1.5. 253 */ 254 255 int ncolors; /* number of page color buckets: must be p-o-2 */ 256 int colormask; /* color bucket mask */ 257 258 int zeropages; /* number of zero'd pages */ 259 int reserve_pagedaemon; /* number of pages reserved for pagedaemon */ 260 int reserve_kernel; /* number of pages reserved for kernel */ 261 int anonpages; /* number of pages used by anon mappings */ 262 int filepages; /* number of pages used by cached file data */ 263 int execpages; /* number of pages used by cached exec date */ 264 265 /* pageout params */ 266 int freemin; /* min number of free pages */ 267 int freetarg; /* target number of free pages */ 268 int inactarg; /* target number of inactive pages */ 269 int wiredmax; /* max number of wired pages */ 270 int anonmin; /* min threshold for anon pages */ 271 int execmin; /* min threshold for executable pages */ 272 int filemin; /* min threshold for file pages */ 273 int anonminpct; /* min percent anon pages */ 274 int execminpct; /* min percent executable pages */ 275 int fileminpct; /* min percent file pages */ 276 int anonmax; /* max threshold for anon pages */ 277 int execmax; /* max threshold for executable pages */ 278 int filemax; /* max threshold for file pages */ 279 int anonmaxpct; /* max percent anon pages */ 280 int execmaxpct; /* max percent executable pages */ 281 int filemaxpct; /* max percent file pages */ 282 283 /* swap */ 284 int nswapdev; /* number of configured swap devices in system */ 285 int swpages; /* number of PAGE_SIZE'ed swap pages */ 286 int swpginuse; /* number of swap pages in use */ 287 int swpgonly; /* number of swap pages in use, not also in RAM */ 288 int nswget; /* number of times fault calls uvm_swap_get() */ 289 int nanon; /* number total of anon's in system */ 290 int nanonneeded;/* number of anons currently needed */ 291 int nfreeanon; /* number of free anon's */ 292 293 /* stat counters */ 294 int faults; /* page fault count */ 295 int traps; /* trap count */ 296 int intrs; /* interrupt count */ 297 int swtch; /* context switch count */ 298 int softs; /* software interrupt count */ 299 int syscalls; /* system calls */ 300 int pageins; /* pagein operation count */ 301 /* pageouts are in pdpageouts below */ 302 int swapins; /* swapins */ 303 int swapouts; /* swapouts */ 304 int pgswapin; /* pages swapped in */ 305 int pgswapout; /* pages swapped out */ 306 int forks; /* forks */ 307 int forks_ppwait; /* forks where parent waits */ 308 int forks_sharevm; /* forks where vmspace is shared */ 309 int pga_zerohit; /* pagealloc where zero wanted and zero 310 was available */ 311 int pga_zeromiss; /* pagealloc where zero wanted and zero 312 not available */ 313 int zeroaborts; /* number of times page zeroing was 314 aborted */ 315 int colorhit; /* pagealloc where we got optimal color */ 316 int colormiss; /* pagealloc where we didn't */ 317 318 /* fault subcounters */ 319 int fltnoram; /* number of times fault was out of ram */ 320 int fltnoanon; /* number of times fault was out of anons */ 321 int fltpgwait; /* number of times fault had to wait on a page */ 322 int fltpgrele; /* number of times fault found a released page */ 323 int fltrelck; /* number of times fault relock called */ 324 int fltrelckok; /* number of times fault relock is a success */ 325 int fltanget; /* number of times fault gets anon page */ 326 int fltanretry; /* number of times fault retrys an anon get */ 327 int fltamcopy; /* number of times fault clears "needs copy" */ 328 int fltnamap; /* number of times fault maps a neighbor anon page */ 329 int fltnomap; /* number of times fault maps a neighbor obj page */ 330 int fltlget; /* number of times fault does a locked pgo_get */ 331 int fltget; /* number of times fault does an unlocked get */ 332 int flt_anon; /* number of times fault anon (case 1a) */ 333 int flt_acow; /* number of times fault anon cow (case 1b) */ 334 int flt_obj; /* number of times fault is on object page (2a) */ 335 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 336 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 337 338 /* daemon counters */ 339 int pdwoke; /* number of times daemon woke up */ 340 int pdrevs; /* number of times daemon rev'd clock hand */ 341 int pdswout; /* number of times daemon called for swapout */ 342 int pdfreed; /* number of pages daemon freed since boot */ 343 int pdscans; /* number of pages daemon scanned since boot */ 344 int pdanscan; /* number of anonymous pages scanned by daemon */ 345 int pdobscan; /* number of object pages scanned by daemon */ 346 int pdreact; /* number of pages daemon reactivated since boot */ 347 int pdbusy; /* number of times daemon found a busy page */ 348 int pdpageouts; /* number of times daemon started a pageout */ 349 int pdpending; /* number of times daemon got a pending pagout */ 350 int pddeact; /* number of pages daemon deactivates */ 351 int pdreanon; /* anon pages reactivated due to thresholds */ 352 int pdrefile; /* file pages reactivated due to thresholds */ 353 int pdreexec; /* executable pages reactivated due to thresholds */ 354 }; 355 356 /* 357 * The following structure is 64-bit alignment safe. New elements 358 * should only be added to the end of this structure so binary 359 * compatibility can be preserved. 360 */ 361 struct uvmexp_sysctl { 362 int64_t pagesize; 363 int64_t pagemask; 364 int64_t pageshift; 365 int64_t npages; 366 int64_t free; 367 int64_t active; 368 int64_t inactive; 369 int64_t paging; 370 int64_t wired; 371 int64_t zeropages; 372 int64_t reserve_pagedaemon; 373 int64_t reserve_kernel; 374 int64_t freemin; 375 int64_t freetarg; 376 int64_t inactarg; 377 int64_t wiredmax; 378 int64_t nswapdev; 379 int64_t swpages; 380 int64_t swpginuse; 381 int64_t swpgonly; 382 int64_t nswget; 383 int64_t nanon; 384 int64_t nanonneeded; 385 int64_t nfreeanon; 386 int64_t faults; 387 int64_t traps; 388 int64_t intrs; 389 int64_t swtch; 390 int64_t softs; 391 int64_t syscalls; 392 int64_t pageins; 393 int64_t swapins; 394 int64_t swapouts; 395 int64_t pgswapin; 396 int64_t pgswapout; 397 int64_t forks; 398 int64_t forks_ppwait; 399 int64_t forks_sharevm; 400 int64_t pga_zerohit; 401 int64_t pga_zeromiss; 402 int64_t zeroaborts; 403 int64_t fltnoram; 404 int64_t fltnoanon; 405 int64_t fltpgwait; 406 int64_t fltpgrele; 407 int64_t fltrelck; 408 int64_t fltrelckok; 409 int64_t fltanget; 410 int64_t fltanretry; 411 int64_t fltamcopy; 412 int64_t fltnamap; 413 int64_t fltnomap; 414 int64_t fltlget; 415 int64_t fltget; 416 int64_t flt_anon; 417 int64_t flt_acow; 418 int64_t flt_obj; 419 int64_t flt_prcopy; 420 int64_t flt_przero; 421 int64_t pdwoke; 422 int64_t pdrevs; 423 int64_t pdswout; 424 int64_t pdfreed; 425 int64_t pdscans; 426 int64_t pdanscan; 427 int64_t pdobscan; 428 int64_t pdreact; 429 int64_t pdbusy; 430 int64_t pdpageouts; 431 int64_t pdpending; 432 int64_t pddeact; 433 int64_t anonpages; 434 int64_t filepages; 435 int64_t execpages; 436 int64_t colorhit; 437 int64_t colormiss; 438 int64_t ncolors; 439 }; 440 441 #ifdef _KERNEL 442 extern struct uvmexp uvmexp; 443 #endif 444 445 /* 446 * Finally, bring in standard UVM headers. 447 */ 448 #include <sys/vmmeter.h> 449 #include <sys/queue.h> 450 #include <uvm/uvm_param.h> 451 #include <sys/lock.h> 452 #include <uvm/uvm_prot.h> 453 #include <uvm/uvm_page.h> 454 #include <uvm/uvm_pmap.h> 455 #include <uvm/uvm_map.h> 456 #include <uvm/uvm_fault.h> 457 #include <uvm/uvm_pager.h> 458 459 /* 460 * Shareable process virtual address space. 461 * May eventually be merged with vm_map. 462 * Several fields are temporary (text, data stuff). 463 */ 464 struct vmspace { 465 struct vm_map vm_map; /* VM address map */ 466 int vm_refcnt; /* number of references */ 467 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 468 /* we copy from vm_startcopy to the end of the structure on fork */ 469 #define vm_startcopy vm_rssize 470 segsz_t vm_rssize; /* current resident set size in pages */ 471 segsz_t vm_swrss; /* resident set size before last swap */ 472 segsz_t vm_tsize; /* text size (pages) XXX */ 473 segsz_t vm_dsize; /* data size (pages) XXX */ 474 segsz_t vm_ssize; /* stack size (pages) */ 475 caddr_t vm_taddr; /* user virtual address of text XXX */ 476 caddr_t vm_daddr; /* user virtual address of data XXX */ 477 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 478 caddr_t vm_minsaddr; /* user VA at top of stack */ 479 }; 480 481 #ifdef _KERNEL 482 483 /* 484 * used to keep state while iterating over the map for a core dump. 485 */ 486 struct uvm_coredump_state { 487 void *cookie; /* opaque for the caller */ 488 vaddr_t start; /* start of region */ 489 vaddr_t end; /* end of region */ 490 vm_prot_t prot; /* protection of region */ 491 int flags; /* flags; see below */ 492 }; 493 494 #define UVM_COREDUMP_STACK 0x01 /* region is user stack */ 495 #define UVM_COREDUMP_NODUMP 0x02 /* don't actually dump this region */ 496 497 /* 498 * the various kernel maps, owned by MD code 499 */ 500 extern struct vm_map *exec_map; 501 extern struct vm_map *kernel_map; 502 extern struct vm_map *kmem_map; 503 extern struct vm_map *mb_map; 504 extern struct vm_map *phys_map; 505 506 /* 507 * these variables define the boundaries of the managed kernel virtual 508 * address space. they are initialized by machine-dependent code during 509 * bootstrap. note that before kernel virtual memory is initialized, 510 * some address space might be "stolen" during bootstrap. anything that 511 * steals address space must update these variables accordingly. 512 */ 513 extern vaddr_t virtual_avail; 514 extern vaddr_t virtual_end; 515 516 /* 517 * macros 518 */ 519 520 /* zalloc zeros memory, alloc does not */ 521 #define uvm_km_zalloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,TRUE) 522 #define uvm_km_alloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,FALSE) 523 524 #endif /* _KERNEL */ 525 526 #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 527 528 struct buf; 529 struct loadavg; 530 struct proc; 531 struct pmap; 532 struct vmspace; 533 struct vmtotal; 534 struct mount; 535 struct vnode; 536 struct core; 537 538 #ifdef _KERNEL 539 #include <sys/mallocvar.h> 540 MALLOC_DECLARE(M_VMMAP); 541 MALLOC_DECLARE(M_VMPMAP); 542 543 /* vm_machdep.c */ 544 void vmapbuf __P((struct buf *, vsize_t)); 545 void vunmapbuf __P((struct buf *, vsize_t)); 546 void pagemove __P((caddr_t, caddr_t, size_t)); 547 #ifndef cpu_swapin 548 void cpu_swapin __P((struct lwp *)); 549 #endif 550 #ifndef cpu_swapout 551 void cpu_swapout __P((struct lwp *)); 552 #endif 553 554 /* uvm_aobj.c */ 555 struct uvm_object *uao_create __P((vsize_t, int)); 556 void uao_detach __P((struct uvm_object *)); 557 void uao_detach_locked __P((struct uvm_object *)); 558 void uao_reference __P((struct uvm_object *)); 559 void uao_reference_locked __P((struct uvm_object *)); 560 561 /* uvm_bio.c */ 562 void ubc_init __P((void)); 563 void * ubc_alloc __P((struct uvm_object *, voff_t, vsize_t *, 564 int)); 565 void ubc_release __P((void *, int)); 566 void ubc_flush __P((struct uvm_object *, voff_t, voff_t)); 567 568 /* uvm_fault.c */ 569 int uvm_fault __P((struct vm_map *, vaddr_t, vm_fault_t, 570 vm_prot_t)); 571 /* handle a page fault */ 572 573 /* uvm_glue.c */ 574 #if defined(KGDB) 575 void uvm_chgkprot __P((caddr_t, size_t, int)); 576 #endif 577 void uvm_proc_fork __P((struct proc *, struct proc *, boolean_t)); 578 void uvm_lwp_fork __P((struct lwp *, struct lwp *, 579 void *, size_t, void (*)(void *), void *)); 580 int uvm_coredump_walkmap __P((struct proc *, 581 struct vnode *, struct ucred *, 582 int (*)(struct proc *, struct vnode *, 583 struct ucred *, 584 struct uvm_coredump_state *), void *)); 585 void uvm_proc_exit __P((struct proc *)); 586 void uvm_lwp_exit __P((struct lwp *)); 587 void uvm_init_limits __P((struct proc *)); 588 boolean_t uvm_kernacc __P((caddr_t, size_t, int)); 589 __dead void uvm_scheduler __P((void)) __attribute__((noreturn)); 590 void uvm_swapin __P((struct lwp *)); 591 boolean_t uvm_uarea_alloc(vaddr_t *); 592 void uvm_uarea_free(vaddr_t); 593 boolean_t uvm_useracc __P((caddr_t, size_t, int)); 594 int uvm_vslock __P((struct proc *, caddr_t, size_t, 595 vm_prot_t)); 596 void uvm_vsunlock __P((struct proc *, caddr_t, size_t)); 597 598 599 /* uvm_init.c */ 600 void uvm_init __P((void)); 601 602 /* uvm_io.c */ 603 int uvm_io __P((struct vm_map *, struct uio *)); 604 605 /* uvm_km.c */ 606 vaddr_t uvm_km_alloc1 __P((struct vm_map *, vsize_t, 607 boolean_t)); 608 void uvm_km_free __P((struct vm_map *, vaddr_t, vsize_t)); 609 void uvm_km_free_wakeup __P((struct vm_map *, vaddr_t, 610 vsize_t)); 611 vaddr_t uvm_km_kmemalloc __P((struct vm_map *, struct 612 uvm_object *, vsize_t, int)); 613 struct vm_map *uvm_km_suballoc __P((struct vm_map *, vaddr_t *, 614 vaddr_t *, vsize_t, int, boolean_t, 615 struct vm_map *)); 616 vaddr_t uvm_km_valloc __P((struct vm_map *, vsize_t)); 617 vaddr_t uvm_km_valloc_align __P((struct vm_map *, vsize_t, 618 vsize_t)); 619 vaddr_t uvm_km_valloc_wait __P((struct vm_map *, vsize_t)); 620 vaddr_t uvm_km_valloc_prefer_wait __P((struct vm_map *, vsize_t, 621 voff_t)); 622 vaddr_t uvm_km_alloc_poolpage1 __P((struct vm_map *, 623 struct uvm_object *, boolean_t)); 624 void uvm_km_free_poolpage1 __P((struct vm_map *, vaddr_t)); 625 626 #define uvm_km_alloc_poolpage(waitok) \ 627 uvm_km_alloc_poolpage1(kmem_map, NULL, (waitok)) 628 #define uvm_km_free_poolpage(addr) \ 629 uvm_km_free_poolpage1(kmem_map, (addr)) 630 631 /* uvm_map.c */ 632 int uvm_map __P((struct vm_map *, vaddr_t *, vsize_t, 633 struct uvm_object *, voff_t, vsize_t, 634 uvm_flag_t)); 635 int uvm_map_pageable __P((struct vm_map *, vaddr_t, 636 vaddr_t, boolean_t, int)); 637 int uvm_map_pageable_all __P((struct vm_map *, int, 638 vsize_t)); 639 boolean_t uvm_map_checkprot __P((struct vm_map *, vaddr_t, 640 vaddr_t, vm_prot_t)); 641 int uvm_map_protect __P((struct vm_map *, vaddr_t, 642 vaddr_t, vm_prot_t, boolean_t)); 643 struct vmspace *uvmspace_alloc __P((vaddr_t, vaddr_t)); 644 void uvmspace_init __P((struct vmspace *, struct pmap *, 645 vaddr_t, vaddr_t)); 646 void uvmspace_exec __P((struct lwp *, vaddr_t, vaddr_t)); 647 struct vmspace *uvmspace_fork __P((struct vmspace *)); 648 void uvmspace_free __P((struct vmspace *)); 649 void uvmspace_share __P((struct proc *, struct proc *)); 650 void uvmspace_unshare __P((struct lwp *)); 651 652 653 /* uvm_meter.c */ 654 void uvm_meter __P((void)); 655 int uvm_sysctl __P((int *, u_int, void *, size_t *, 656 void *, size_t, struct proc *)); 657 658 /* uvm_mmap.c */ 659 int uvm_mmap __P((struct vm_map *, vaddr_t *, vsize_t, 660 vm_prot_t, vm_prot_t, int, 661 void *, voff_t, vsize_t)); 662 663 /* uvm_page.c */ 664 struct vm_page *uvm_pagealloc_strat __P((struct uvm_object *, 665 voff_t, struct vm_anon *, int, int, int)); 666 #define uvm_pagealloc(obj, off, anon, flags) \ 667 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 668 UVM_PGA_STRAT_NORMAL, 0) 669 void uvm_pagerealloc __P((struct vm_page *, 670 struct uvm_object *, voff_t)); 671 /* Actually, uvm_page_physload takes PF#s which need their own type */ 672 void uvm_page_physload __P((paddr_t, paddr_t, paddr_t, 673 paddr_t, int)); 674 void uvm_setpagesize __P((void)); 675 676 /* uvm_pager.c */ 677 void uvm_aio_biodone1 __P((struct buf *)); 678 void uvm_aio_biodone __P((struct buf *)); 679 void uvm_aio_aiodone __P((struct buf *)); 680 681 /* uvm_pdaemon.c */ 682 void uvm_pageout __P((void *)); 683 void uvm_aiodone_daemon __P((void *)); 684 685 /* uvm_pglist.c */ 686 int uvm_pglistalloc __P((psize_t, paddr_t, paddr_t, 687 paddr_t, paddr_t, struct pglist *, int, int)); 688 void uvm_pglistfree __P((struct pglist *)); 689 690 /* uvm_swap.c */ 691 void uvm_swap_init __P((void)); 692 693 /* uvm_unix.c */ 694 int uvm_grow __P((struct proc *, vaddr_t)); 695 696 /* uvm_user.c */ 697 void uvm_deallocate __P((struct vm_map *, vaddr_t, vsize_t)); 698 699 /* uvm_vnode.c */ 700 void uvm_vnp_setsize __P((struct vnode *, voff_t)); 701 void uvm_vnp_sync __P((struct mount *)); 702 struct uvm_object *uvn_attach __P((void *, vm_prot_t)); 703 int uvn_findpages __P((struct uvm_object *, voff_t, 704 int *, struct vm_page **, int)); 705 void uvm_vnp_zerorange __P((struct vnode *, off_t, size_t)); 706 707 /* kern_malloc.c */ 708 void kmeminit_nkmempages __P((void)); 709 void kmeminit __P((void)); 710 extern int nkmempages; 711 712 #endif /* _KERNEL */ 713 714 #endif /* _UVM_UVM_EXTERN_H_ */ 715
Indexes created Sat Sep 20 22:09:52 GMT 2025