1 /* $OpenBSD: uvm_extern.h,v 1.40 2001/12/19 08:58:07 art Exp $ */ 2 /* $NetBSD: uvm_extern.h,v 1.57 2001/03/09 01:02:12 chs Exp $ */ 3 4 /* 5 * 6 * Copyright (c) 1997 Charles D. Cranor and Washington University. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by Charles D. Cranor and 20 * Washington University. 21 * 4. The name of the author may not be used to endorse or promote products 22 * derived from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 26 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 27 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34 * 35 * from: Id: uvm_extern.h,v 1.1.2.21 1998/02/07 01:16:53 chs Exp 36 */ 37 38 /*- 39 * Copyright (c) 1991, 1992, 1993 40 * The Regents of the University of California. All rights reserved. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. All advertising materials mentioning features or use of this software 51 * must display the following acknowledgement: 52 * This product includes software developed by the University of 53 * California, Berkeley and its contributors. 54 * 4. Neither the name of the University nor the names of its contributors 55 * may be used to endorse or promote products derived from this software 56 * without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 * SUCH DAMAGE. 69 * 70 * @(#)vm_extern.h 8.5 (Berkeley) 5/3/95 71 */ 72 73 #ifndef _UVM_UVM_EXTERN_H_ 74 #define _UVM_UVM_EXTERN_H_ 75 76 /* 77 * uvm_extern.h: this file defines the external interface to the VM system. 78 * 79 * this should be the only file included by non-VM parts of the kernel 80 * which need access to VM services. if you want to know the interface 81 * to the MI VM layer without knowing the details, this is the file to 82 * learn. 83 * 84 * NOTE: vm system calls are prototyped in syscallargs.h 85 */ 86 87 /* 88 * typedefs, necessary for standard UVM headers. 89 */ 90 91 typedef unsigned int uvm_flag_t; 92 typedef int vm_fault_t; 93 94 typedef int vm_inherit_t; /* XXX: inheritance codes */ 95 typedef off_t voff_t; /* XXX: offset within a uvm_object */ 96 97 union vm_map_object; 98 typedef union vm_map_object vm_map_object_t; 99 100 struct vm_map_entry; 101 typedef struct vm_map_entry *vm_map_entry_t; 102 103 struct vm_map; 104 typedef struct vm_map *vm_map_t; 105 106 struct vm_page; 107 typedef struct vm_page *vm_page_t; 108 109 /* 110 * defines 111 */ 112 113 /* 114 * the following defines are for uvm_map and functions which call it. 115 */ 116 117 /* protections bits */ 118 #define UVM_PROT_MASK 0x07 /* protection mask */ 119 #define UVM_PROT_NONE 0x00 /* protection none */ 120 #define UVM_PROT_ALL 0x07 /* everything */ 121 #define UVM_PROT_READ 0x01 /* read */ 122 #define UVM_PROT_WRITE 0x02 /* write */ 123 #define UVM_PROT_EXEC 0x04 /* exec */ 124 125 /* protection short codes */ 126 #define UVM_PROT_R 0x01 /* read */ 127 #define UVM_PROT_W 0x02 /* write */ 128 #define UVM_PROT_RW 0x03 /* read-write */ 129 #define UVM_PROT_X 0x04 /* exec */ 130 #define UVM_PROT_RX 0x05 /* read-exec */ 131 #define UVM_PROT_WX 0x06 /* write-exec */ 132 #define UVM_PROT_RWX 0x07 /* read-write-exec */ 133 134 /* 0x08: not used */ 135 136 /* inherit codes */ 137 #define UVM_INH_MASK 0x30 /* inherit mask */ 138 #define UVM_INH_SHARE 0x00 /* "share" */ 139 #define UVM_INH_COPY 0x10 /* "copy" */ 140 #define UVM_INH_NONE 0x20 /* "none" */ 141 #define UVM_INH_DONATE 0x30 /* "donate" << not used */ 142 143 /* 0x40, 0x80: not used */ 144 145 /* bits 0x700: max protection, 0x800: not used */ 146 147 /* bits 0x7000: advice, 0x8000: not used */ 148 149 typedef int vm_prot_t; 150 151 /* 152 * Protection values, defined as bits within the vm_prot_t type 153 * 154 * These are funky definitions from old CMU VM and are kept 155 * for compatibility reasons, one day they are going to die, 156 * just like everybody else. 157 */ 158 159 #define VM_PROT_NONE ((vm_prot_t) 0x00) 160 161 #define VM_PROT_READ ((vm_prot_t) 0x01) /* read permission */ 162 #define VM_PROT_WRITE ((vm_prot_t) 0x02) /* write permission */ 163 #define VM_PROT_EXECUTE ((vm_prot_t) 0x04) /* execute permission */ 164 165 /* 166 * The default protection for newly-created virtual memory 167 */ 168 169 #define VM_PROT_DEFAULT (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE) 170 171 /* 172 * The maximum privileges possible, for parameter checking. 173 */ 174 175 #define VM_PROT_ALL (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE) 176 177 /* advice: matches MADV_* from sys/mman.h */ 178 #define UVM_ADV_NORMAL 0x0 /* 'normal' */ 179 #define UVM_ADV_RANDOM 0x1 /* 'random' */ 180 #define UVM_ADV_SEQUENTIAL 0x2 /* 'sequential' */ 181 /* 0x3: will need, 0x4: dontneed */ 182 #define UVM_ADV_MASK 0x7 /* mask */ 183 184 /* mapping flags */ 185 #define UVM_FLAG_FIXED 0x010000 /* find space */ 186 #define UVM_FLAG_OVERLAY 0x020000 /* establish overlay */ 187 #define UVM_FLAG_NOMERGE 0x040000 /* don't merge map entries */ 188 #define UVM_FLAG_COPYONW 0x080000 /* set copy_on_write flag */ 189 #define UVM_FLAG_AMAPPAD 0x100000 /* for bss: pad amap to reduce malloc() */ 190 #define UVM_FLAG_TRYLOCK 0x200000 /* fail if we can not lock map */ 191 192 /* macros to extract info */ 193 #define UVM_PROTECTION(X) ((X) & UVM_PROT_MASK) 194 #define UVM_INHERIT(X) (((X) & UVM_INH_MASK) >> 4) 195 #define UVM_MAXPROTECTION(X) (((X) >> 8) & UVM_PROT_MASK) 196 #define UVM_ADVICE(X) (((X) >> 12) & UVM_ADV_MASK) 197 198 #define UVM_MAPFLAG(PROT,MAXPROT,INH,ADVICE,FLAGS) \ 199 ((MAXPROT << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS)) 200 201 /* magic offset value */ 202 #define UVM_UNKNOWN_OFFSET ((voff_t) -1) 203 /* offset not known(obj) or don't care(!obj) */ 204 205 /* 206 * the following defines are for uvm_km_kmemalloc's flags 207 */ 208 #define UVM_KMF_NOWAIT 0x1 /* matches M_NOWAIT */ 209 #define UVM_KMF_VALLOC 0x2 /* allocate VA only */ 210 #define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */ 211 212 /* 213 * the following defines the strategies for uvm_pagealloc_strat() 214 */ 215 #define UVM_PGA_STRAT_NORMAL 0 /* high -> low free list walk */ 216 #define UVM_PGA_STRAT_ONLY 1 /* only specified free list */ 217 #define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */ 218 219 /* 220 * flags for uvm_pagealloc_strat() 221 */ 222 #define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */ 223 #define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */ 224 225 /* 226 * lockflags that control the locking behavior of various functions. 227 */ 228 #define UVM_LK_ENTER 0x00000001 /* map locked on entry */ 229 #define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */ 230 231 /* 232 * structures 233 */ 234 235 struct buf; 236 struct core; 237 struct mount; 238 struct pglist; 239 struct proc; 240 struct ucred; 241 struct uio; 242 struct uvm_object; 243 struct vm_anon; 244 struct vm_aref; 245 struct vm_map; 246 struct vmspace; 247 struct pmap; 248 struct vnode; 249 struct pool; 250 struct simplelock; 251 252 extern struct pool *uvm_aiobuf_pool; 253 254 /* 255 * uvmexp: global data structures that are exported to parts of the kernel 256 * other than the vm system. 257 */ 258 259 struct uvmexp { 260 /* vm_page constants */ 261 int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */ 262 int pagemask; /* page mask */ 263 int pageshift; /* page shift */ 264 265 /* vm_page counters */ 266 int npages; /* number of pages we manage */ 267 int free; /* number of free pages */ 268 int active; /* number of active pages */ 269 int inactive; /* number of pages that we free'd but may want back */ 270 int paging; /* number of pages in the process of being paged out */ 271 int wired; /* number of wired pages */ 272 273 int zeropages; /* number of zero'd pages */ 274 int reserve_pagedaemon; /* number of pages reserved for pagedaemon */ 275 int reserve_kernel; /* number of pages reserved for kernel */ 276 int anonpages; /* number of pages used by anon pagers */ 277 int vnodepages; /* number of pages used by vnode page cache */ 278 int vtextpages; /* number of pages used by vtext vnodes */ 279 280 /* pageout params */ 281 int freemin; /* min number of free pages */ 282 int freetarg; /* target number of free pages */ 283 int inactarg; /* target number of inactive pages */ 284 int wiredmax; /* max number of wired pages */ 285 int anonmin; /* min threshold for anon pages */ 286 int vtextmin; /* min threshold for vtext pages */ 287 int vnodemin; /* min threshold for vnode pages */ 288 int anonminpct; /* min percent anon pages */ 289 int vtextminpct;/* min percent vtext pages */ 290 int vnodeminpct;/* min percent vnode pages */ 291 292 /* swap */ 293 int nswapdev; /* number of configured swap devices in system */ 294 int swpages; /* number of PAGE_SIZE'ed swap pages */ 295 int swpginuse; /* number of swap pages in use */ 296 int swpgonly; /* number of swap pages in use, not also in RAM */ 297 int nswget; /* number of times fault calls uvm_swap_get() */ 298 int nanon; /* number total of anon's in system */ 299 int nanonneeded;/* number of anons currently needed */ 300 int nfreeanon; /* number of free anon's */ 301 302 /* stat counters */ 303 int faults; /* page fault count */ 304 int traps; /* trap count */ 305 int intrs; /* interrupt count */ 306 int swtch; /* context switch count */ 307 int softs; /* software interrupt count */ 308 int syscalls; /* system calls */ 309 int pageins; /* pagein operation count */ 310 /* pageouts are in pdpageouts below */ 311 int swapins; /* swapins */ 312 int swapouts; /* swapouts */ 313 int pgswapin; /* pages swapped in */ 314 int pgswapout; /* pages swapped out */ 315 int forks; /* forks */ 316 int forks_ppwait; /* forks where parent waits */ 317 int forks_sharevm; /* forks where vmspace is shared */ 318 int pga_zerohit; /* pagealloc where zero wanted and zero 319 was available */ 320 int pga_zeromiss; /* pagealloc where zero wanted and zero 321 not available */ 322 int zeroaborts; /* number of times page zeroing was 323 aborted */ 324 325 /* fault subcounters */ 326 int fltnoram; /* number of times fault was out of ram */ 327 int fltnoanon; /* number of times fault was out of anons */ 328 int fltpgwait; /* number of times fault had to wait on a page */ 329 int fltpgrele; /* number of times fault found a released page */ 330 int fltrelck; /* number of times fault relock called */ 331 int fltrelckok; /* number of times fault relock is a success */ 332 int fltanget; /* number of times fault gets anon page */ 333 int fltanretry; /* number of times fault retrys an anon get */ 334 int fltamcopy; /* number of times fault clears "needs copy" */ 335 int fltnamap; /* number of times fault maps a neighbor anon page */ 336 int fltnomap; /* number of times fault maps a neighbor obj page */ 337 int fltlget; /* number of times fault does a locked pgo_get */ 338 int fltget; /* number of times fault does an unlocked get */ 339 int flt_anon; /* number of times fault anon (case 1a) */ 340 int flt_acow; /* number of times fault anon cow (case 1b) */ 341 int flt_obj; /* number of times fault is on object page (2a) */ 342 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 343 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 344 345 /* daemon counters */ 346 int pdwoke; /* number of times daemon woke up */ 347 int pdrevs; /* number of times daemon rev'd clock hand */ 348 int pdswout; /* number of times daemon called for swapout */ 349 int pdfreed; /* number of pages daemon freed since boot */ 350 int pdscans; /* number of pages daemon scaned since boot */ 351 int pdanscan; /* number of anonymous pages scanned by daemon */ 352 int pdobscan; /* number of object pages scanned by daemon */ 353 int pdreact; /* number of pages daemon reactivated since boot */ 354 int pdbusy; /* number of times daemon found a busy page */ 355 int pdpageouts; /* number of times daemon started a pageout */ 356 int pdpending; /* number of times daemon got a pending pagout */ 357 int pddeact; /* number of pages daemon deactivates */ 358 int pdreanon; /* anon pages reactivated due to min threshold */ 359 int pdrevnode; /* vnode pages reactivated due to min threshold */ 360 int pdrevtext; /* vtext pages reactivated due to min threshold */ 361 362 /* kernel memory objects: managed by uvm_km_kmemalloc() only! */ 363 struct uvm_object *kmem_object; 364 struct uvm_object *mb_object; 365 }; 366 367 #ifdef _KERNEL 368 extern struct uvmexp uvmexp; 369 #endif 370 371 /* 372 * Finally, bring in standard UVM headers. 373 */ 374 #include <sys/vmmeter.h> 375 #include <sys/queue.h> 376 #include <uvm/uvm_param.h> 377 #include <sys/lock.h> 378 #include <uvm/uvm_page.h> 379 #include <uvm/uvm_pmap.h> 380 #include <uvm/uvm_map.h> 381 #include <uvm/uvm_fault.h> 382 #include <uvm/uvm_pager.h> 383 384 /* 385 * Shareable process virtual address space. 386 * May eventually be merged with vm_map. 387 * Several fields are temporary (text, data stuff). 388 */ 389 struct vmspace { 390 struct vm_map vm_map; /* VM address map */ 391 int vm_refcnt; /* number of references */ 392 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 393 /* we copy from vm_startcopy to the end of the structure on fork */ 394 #define vm_startcopy vm_rssize 395 segsz_t vm_rssize; /* current resident set size in pages */ 396 segsz_t vm_swrss; /* resident set size before last swap */ 397 segsz_t vm_tsize; /* text size (pages) XXX */ 398 segsz_t vm_dsize; /* data size (pages) XXX */ 399 segsz_t vm_ssize; /* stack size (pages) */ 400 caddr_t vm_taddr; /* user virtual address of text XXX */ 401 caddr_t vm_daddr; /* user virtual address of data XXX */ 402 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 403 caddr_t vm_minsaddr; /* user VA at top of stack */ 404 }; 405 406 #ifdef _KERNEL 407 408 /* 409 * the various kernel maps, owned by MD code 410 */ 411 extern struct vm_map *exec_map; 412 extern struct vm_map *kernel_map; 413 extern struct vm_map *kmem_map; 414 extern struct vm_map *mb_map; 415 extern struct vm_map *phys_map; 416 417 418 /* 419 * macros 420 */ 421 422 /* zalloc zeros memory, alloc does not */ 423 #define uvm_km_zalloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,TRUE) 424 #define uvm_km_alloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,FALSE) 425 426 #endif /* _KERNEL */ 427 428 #ifdef pmap_resident_count 429 #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 430 #else 431 #define vm_resident_count(vm) ((vm)->vm_rssize) 432 #endif 433 434 /* XXX clean up later */ 435 struct buf; 436 struct loadavg; 437 struct proc; 438 struct pmap; 439 struct vmspace; 440 struct vmtotal; 441 struct mount; 442 struct vnode; 443 struct core; 444 445 #ifdef _KERNEL 446 447 /* vm_machdep.c */ 448 void vmapbuf __P((struct buf *, vsize_t)); 449 void vunmapbuf __P((struct buf *, vsize_t)); 450 void pagemove __P((caddr_t, caddr_t, size_t)); 451 #ifndef cpu_swapin 452 void cpu_swapin __P((struct proc *)); 453 #endif 454 #ifndef cpu_swapout 455 void cpu_swapout __P((struct proc *)); 456 #endif 457 void cpu_fork __P((struct proc *, struct proc *, void *, size_t, 458 void (*)(void *), void *)); 459 460 /* uvm_aobj.c */ 461 struct uvm_object *uao_create __P((vsize_t, int)); 462 void uao_detach __P((struct uvm_object *)); 463 void uao_detach_locked __P((struct uvm_object *)); 464 void uao_reference __P((struct uvm_object *)); 465 void uao_reference_locked __P((struct uvm_object *)); 466 467 /* uvm_fault.c */ 468 int uvm_fault __P((vm_map_t, vaddr_t, 469 vm_fault_t, vm_prot_t)); 470 /* handle a page fault */ 471 472 /* uvm_glue.c */ 473 #if defined(KGDB) 474 void uvm_chgkprot __P((caddr_t, size_t, int)); 475 #endif 476 void uvm_fork __P((struct proc *, struct proc *, boolean_t, 477 void *, size_t, void (*)(void *), void *)); 478 void uvm_exit __P((struct proc *)); 479 void uvm_init_limits __P((struct proc *)); 480 boolean_t uvm_kernacc __P((caddr_t, size_t, int)); 481 __dead void uvm_scheduler __P((void)); 482 void uvm_swapin __P((struct proc *)); 483 boolean_t uvm_useracc __P((caddr_t, size_t, int)); 484 int uvm_vslock __P((struct proc *, caddr_t, size_t, 485 vm_prot_t)); 486 void uvm_vsunlock __P((struct proc *, caddr_t, size_t)); 487 488 489 /* uvm_init.c */ 490 void uvm_init __P((void)); 491 /* init the uvm system */ 492 493 /* uvm_io.c */ 494 int uvm_io __P((vm_map_t, struct uio *)); 495 496 /* uvm_km.c */ 497 vaddr_t uvm_km_alloc1 __P((vm_map_t, vsize_t, boolean_t)); 498 void uvm_km_free __P((vm_map_t, vaddr_t, vsize_t)); 499 void uvm_km_free_wakeup __P((vm_map_t, vaddr_t, 500 vsize_t)); 501 vaddr_t uvm_km_kmemalloc __P((vm_map_t, struct uvm_object *, 502 vsize_t, int)); 503 struct vm_map *uvm_km_suballoc __P((vm_map_t, vaddr_t *, 504 vaddr_t *, vsize_t, int, 505 boolean_t, vm_map_t)); 506 vaddr_t uvm_km_valloc __P((vm_map_t, vsize_t)); 507 vaddr_t uvm_km_valloc_align __P((vm_map_t, vsize_t, vsize_t)); 508 vaddr_t uvm_km_valloc_wait __P((vm_map_t, vsize_t)); 509 vaddr_t uvm_km_valloc_prefer_wait __P((vm_map_t, vsize_t, 510 voff_t)); 511 vaddr_t uvm_km_alloc_poolpage1 __P((vm_map_t, 512 struct uvm_object *, boolean_t)); 513 void uvm_km_free_poolpage1 __P((vm_map_t, vaddr_t)); 514 515 #define uvm_km_alloc_poolpage(waitok) uvm_km_alloc_poolpage1(kmem_map, \ 516 uvmexp.kmem_object, (waitok)) 517 #define uvm_km_free_poolpage(addr) uvm_km_free_poolpage1(kmem_map, (addr)) 518 519 /* uvm_map.c */ 520 int uvm_map __P((vm_map_t, vaddr_t *, vsize_t, 521 struct uvm_object *, voff_t, vsize_t, 522 uvm_flag_t)); 523 int uvm_map_pageable __P((vm_map_t, vaddr_t, 524 vaddr_t, boolean_t, int)); 525 int uvm_map_pageable_all __P((vm_map_t, int, vsize_t)); 526 boolean_t uvm_map_checkprot __P((vm_map_t, vaddr_t, 527 vaddr_t, vm_prot_t)); 528 int uvm_map_protect __P((vm_map_t, vaddr_t, 529 vaddr_t, vm_prot_t, boolean_t)); 530 struct vmspace *uvmspace_alloc __P((vaddr_t, vaddr_t, 531 boolean_t)); 532 void uvmspace_init __P((struct vmspace *, struct pmap *, 533 vaddr_t, vaddr_t, boolean_t)); 534 void uvmspace_exec __P((struct proc *, vaddr_t, vaddr_t)); 535 struct vmspace *uvmspace_fork __P((struct vmspace *)); 536 void uvmspace_free __P((struct vmspace *)); 537 void uvmspace_share __P((struct proc *, struct proc *)); 538 void uvmspace_unshare __P((struct proc *)); 539 540 541 /* uvm_meter.c */ 542 void uvm_meter __P((void)); 543 int uvm_sysctl __P((int *, u_int, void *, size_t *, 544 void *, size_t, struct proc *)); 545 void uvm_total __P((struct vmtotal *)); 546 547 /* uvm_mmap.c */ 548 int uvm_mmap __P((vm_map_t, vaddr_t *, vsize_t, 549 vm_prot_t, vm_prot_t, int, 550 caddr_t, voff_t, vsize_t)); 551 552 /* uvm_page.c */ 553 struct vm_page *uvm_pagealloc_strat __P((struct uvm_object *, 554 voff_t, struct vm_anon *, int, int, int)); 555 #define uvm_pagealloc(obj, off, anon, flags) \ 556 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 557 UVM_PGA_STRAT_NORMAL, 0) 558 vaddr_t uvm_pagealloc_contig __P((vaddr_t, vaddr_t, 559 vaddr_t, vaddr_t)); 560 void uvm_pagerealloc __P((struct vm_page *, 561 struct uvm_object *, voff_t)); 562 /* Actually, uvm_page_physload takes PF#s which need their own type */ 563 void uvm_page_physload __P((paddr_t, paddr_t, 564 paddr_t, paddr_t, int)); 565 void uvm_setpagesize __P((void)); 566 567 /* uvm_pager.c */ 568 void uvm_aio_biodone1 __P((struct buf *)); 569 void uvm_aio_biodone __P((struct buf *)); 570 void uvm_aio_aiodone __P((struct buf *)); 571 572 /* uvm_pdaemon.c */ 573 void uvm_pageout __P((void *)); 574 void uvm_aiodone_daemon __P((void *)); 575 576 /* uvm_pglist.c */ 577 int uvm_pglistalloc __P((psize_t, paddr_t, 578 paddr_t, paddr_t, paddr_t, 579 struct pglist *, int, int)); 580 void uvm_pglistfree __P((struct pglist *)); 581 582 /* uvm_swap.c */ 583 void uvm_swap_init __P((void)); 584 585 /* uvm_unix.c */ 586 int uvm_coredump __P((struct proc *, struct vnode *, 587 struct ucred *, struct core *)); 588 int uvm_grow __P((struct proc *, vaddr_t)); 589 590 /* uvm_user.c */ 591 int uvm_deallocate __P((vm_map_t, vaddr_t, vsize_t)); 592 593 /* uvm_vnode.c */ 594 void uvm_vnp_setsize __P((struct vnode *, voff_t)); 595 void uvm_vnp_sync __P((struct mount *)); 596 void uvm_vnp_terminate __P((struct vnode *)); 597 /* terminate a uvm/uvn object */ 598 boolean_t uvm_vnp_uncache __P((struct vnode *)); 599 struct uvm_object *uvn_attach __P((void *, vm_prot_t)); 600 601 /* kern_malloc.c */ 602 void kmeminit_nkmempages __P((void)); 603 void kmeminit __P((void)); 604 extern int nkmempages; 605 606 #endif /* _KERNEL */ 607 608 #endif /* _UVM_UVM_EXTERN_H_ */ 609