uvm_extern.h revision 1.53
1 /* $NetBSD: uvm_extern.h,v 1.53 2000/11/27 08:40:03 chs Exp $ */ 2 3 /* 4 * 5 * Copyright (c) 1997 Charles D. Cranor and Washington University. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Charles D. Cranor and 19 * Washington University. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 * 34 * from: Id: uvm_extern.h,v 1.1.2.21 1998/02/07 01:16:53 chs Exp 35 */ 36 37 /*- 38 * Copyright (c) 1991, 1992, 1993 39 * The Regents of the University of California. All rights reserved. 40 * 41 * Redistribution and use in source and binary forms, with or without 42 * modification, are permitted provided that the following conditions 43 * are met: 44 * 1. Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * 2. Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in the 48 * documentation and/or other materials provided with the distribution. 49 * 3. All advertising materials mentioning features or use of this software 50 * must display the following acknowledgement: 51 * This product includes software developed by the University of 52 * California, Berkeley and its contributors. 53 * 4. Neither the name of the University nor the names of its contributors 54 * may be used to endorse or promote products derived from this software 55 * without specific prior written permission. 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 58 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 59 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 60 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 61 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 62 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 63 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 64 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 65 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 67 * SUCH DAMAGE. 68 * 69 * @(#)vm_extern.h 8.5 (Berkeley) 5/3/95 70 */ 71 72 #ifndef _UVM_UVM_EXTERN_H_ 73 #define _UVM_UVM_EXTERN_H_ 74 75 /* 76 * uvm_extern.h: this file defines the external interface to the VM system. 77 * 78 * this should be the only file included by non-VM parts of the kernel 79 * which need access to VM services. if you want to know the interface 80 * to the MI VM layer without knowing the details, this is the file to 81 * learn. 82 * 83 * NOTE: vm system calls are prototyped in syscallargs.h 84 */ 85 86 /* 87 * typedefs, necessary for standard UVM headers. 88 */ 89 90 typedef unsigned int uvm_flag_t; 91 typedef int vm_fault_t; 92 93 typedef int vm_inherit_t; /* XXX: inheritance codes */ 94 typedef off_t voff_t; /* XXX: offset within a uvm_object */ 95 96 union vm_map_object; 97 typedef union vm_map_object vm_map_object_t; 98 99 struct vm_map_entry; 100 typedef struct vm_map_entry *vm_map_entry_t; 101 102 struct vm_map; 103 typedef struct vm_map *vm_map_t; 104 105 struct vm_page; 106 typedef struct vm_page *vm_page_t; 107 108 /* 109 * defines 110 */ 111 112 /* 113 * the following defines are for uvm_map and functions which call it. 114 */ 115 116 /* protections bits */ 117 #define UVM_PROT_MASK 0x07 /* protection mask */ 118 #define UVM_PROT_NONE 0x00 /* protection none */ 119 #define UVM_PROT_ALL 0x07 /* everything */ 120 #define UVM_PROT_READ 0x01 /* read */ 121 #define UVM_PROT_WRITE 0x02 /* write */ 122 #define UVM_PROT_EXEC 0x04 /* exec */ 123 124 /* protection short codes */ 125 #define UVM_PROT_R 0x01 /* read */ 126 #define UVM_PROT_W 0x02 /* write */ 127 #define UVM_PROT_RW 0x03 /* read-write */ 128 #define UVM_PROT_X 0x04 /* exec */ 129 #define UVM_PROT_RX 0x05 /* read-exec */ 130 #define UVM_PROT_WX 0x06 /* write-exec */ 131 #define UVM_PROT_RWX 0x07 /* read-write-exec */ 132 133 /* 0x08: not used */ 134 135 /* inherit codes */ 136 #define UVM_INH_MASK 0x30 /* inherit mask */ 137 #define UVM_INH_SHARE 0x00 /* "share" */ 138 #define UVM_INH_COPY 0x10 /* "copy" */ 139 #define UVM_INH_NONE 0x20 /* "none" */ 140 #define UVM_INH_DONATE 0x30 /* "donate" << not used */ 141 142 /* 0x40, 0x80: not used */ 143 144 /* bits 0x700: max protection, 0x800: not used */ 145 146 /* bits 0x7000: advice, 0x8000: not used */ 147 /* advice: matches MADV_* from sys/mman.h */ 148 #define UVM_ADV_NORMAL 0x0 /* 'normal' */ 149 #define UVM_ADV_RANDOM 0x1 /* 'random' */ 150 #define UVM_ADV_SEQUENTIAL 0x2 /* 'sequential' */ 151 /* 0x3: will need, 0x4: dontneed */ 152 #define UVM_ADV_MASK 0x7 /* mask */ 153 154 /* mapping flags */ 155 #define UVM_FLAG_FIXED 0x010000 /* find space */ 156 #define UVM_FLAG_OVERLAY 0x020000 /* establish overlay */ 157 #define UVM_FLAG_NOMERGE 0x040000 /* don't merge map entries */ 158 #define UVM_FLAG_COPYONW 0x080000 /* set copy_on_write flag */ 159 #define UVM_FLAG_AMAPPAD 0x100000 /* for bss: pad amap to reduce malloc() */ 160 #define UVM_FLAG_TRYLOCK 0x200000 /* fail if we can not lock map */ 161 162 /* macros to extract info */ 163 #define UVM_PROTECTION(X) ((X) & UVM_PROT_MASK) 164 #define UVM_INHERIT(X) (((X) & UVM_INH_MASK) >> 4) 165 #define UVM_MAXPROTECTION(X) (((X) >> 8) & UVM_PROT_MASK) 166 #define UVM_ADVICE(X) (((X) >> 12) & UVM_ADV_MASK) 167 168 #define UVM_MAPFLAG(PROT,MAXPROT,INH,ADVICE,FLAGS) \ 169 ((MAXPROT << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS)) 170 171 /* magic offset value */ 172 #define UVM_UNKNOWN_OFFSET ((voff_t) -1) 173 /* offset not known(obj) or don't care(!obj) */ 174 175 /* 176 * the following defines are for uvm_km_kmemalloc's flags 177 */ 178 #define UVM_KMF_NOWAIT 0x1 /* matches M_NOWAIT */ 179 #define UVM_KMF_VALLOC 0x2 /* allocate VA only */ 180 #define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */ 181 182 /* 183 * the following defines the strategies for uvm_pagealloc_strat() 184 */ 185 #define UVM_PGA_STRAT_NORMAL 0 /* high -> low free list walk */ 186 #define UVM_PGA_STRAT_ONLY 1 /* only specified free list */ 187 #define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */ 188 189 /* 190 * flags for uvm_pagealloc_strat() 191 */ 192 #define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */ 193 #define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */ 194 195 /* 196 * the following defines are for ubc_alloc's flags 197 */ 198 #define UBC_READ 0 199 #define UBC_WRITE 1 200 201 /* 202 * flags for uvn_findpages(). 203 */ 204 #define UFP_ALL 0x0 205 #define UFP_NOWAIT 0x1 206 #define UFP_NOALLOC 0x2 207 #define UFP_NOCACHE 0x4 208 #define UFP_NORDONLY 0x8 209 210 /* 211 * lockflags that control the locking behavior of various functions. 212 */ 213 #define UVM_LK_ENTER 0x00000001 /* map locked on entry */ 214 #define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */ 215 216 /* 217 * structures 218 */ 219 220 struct core; 221 struct mount; 222 struct pglist; 223 struct proc; 224 struct ucred; 225 struct uio; 226 struct uvm_object; 227 struct vm_anon; 228 struct vmspace; 229 struct pmap; 230 struct vnode; 231 struct pool; 232 struct simplelock; 233 234 extern struct pool *uvm_aiobuf_pool; 235 236 /* 237 * uvmexp: global data structures that are exported to parts of the kernel 238 * other than the vm system. 239 */ 240 241 struct uvmexp { 242 /* vm_page constants */ 243 int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */ 244 int pagemask; /* page mask */ 245 int pageshift; /* page shift */ 246 247 /* vm_page counters */ 248 int npages; /* number of pages we manage */ 249 int free; /* number of free pages */ 250 int active; /* number of active pages */ 251 int inactive; /* number of pages that we free'd but may want back */ 252 int paging; /* number of pages in the process of being paged out */ 253 int wired; /* number of wired pages */ 254 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 */ 257 258 /* pageout params */ 259 int freemin; /* min number of free pages */ 260 int freetarg; /* target number of free pages */ 261 int inactarg; /* target number of inactive pages */ 262 int wiredmax; /* max number of wired pages */ 263 264 /* swap */ 265 int nswapdev; /* number of configured swap devices in system */ 266 int swpages; /* number of PAGE_SIZE'ed swap pages */ 267 int swpguniq; /* number of swap pages in use, not also in RAM */ 268 int swpginuse; /* number of swap pages in use */ 269 int swpgonly; /* number of swap pages in use, not also in RAM */ 270 int nswget; /* number of times fault calls uvm_swap_get() */ 271 int nanon; /* number total of anon's in system */ 272 int nanonneeded;/* number of anons currently needed */ 273 int nfreeanon; /* number of free anon's */ 274 275 /* stat counters */ 276 int faults; /* page fault count */ 277 int traps; /* trap count */ 278 int intrs; /* interrupt count */ 279 int swtch; /* context switch count */ 280 int softs; /* software interrupt count */ 281 int syscalls; /* system calls */ 282 int pageins; /* pagein operation count */ 283 /* pageouts are in pdpageouts below */ 284 int swapins; /* swapins */ 285 int swapouts; /* swapouts */ 286 int pgswapin; /* pages swapped in */ 287 int pgswapout; /* pages swapped out */ 288 int forks; /* forks */ 289 int forks_ppwait; /* forks where parent waits */ 290 int forks_sharevm; /* forks where vmspace is shared */ 291 int pga_zerohit; /* pagealloc where zero wanted and zero 292 was available */ 293 int pga_zeromiss; /* pagealloc where zero wanted and zero 294 not available */ 295 int zeroaborts; /* number of times page zeroing was 296 aborted */ 297 298 /* fault subcounters */ 299 int fltnoram; /* number of times fault was out of ram */ 300 int fltnoanon; /* number of times fault was out of anons */ 301 int fltpgwait; /* number of times fault had to wait on a page */ 302 int fltpgrele; /* number of times fault found a released page */ 303 int fltrelck; /* number of times fault relock called */ 304 int fltrelckok; /* number of times fault relock is a success */ 305 int fltanget; /* number of times fault gets anon page */ 306 int fltanretry; /* number of times fault retrys an anon get */ 307 int fltamcopy; /* number of times fault clears "needs copy" */ 308 int fltnamap; /* number of times fault maps a neighbor anon page */ 309 int fltnomap; /* number of times fault maps a neighbor obj page */ 310 int fltlget; /* number of times fault does a locked pgo_get */ 311 int fltget; /* number of times fault does an unlocked get */ 312 int flt_anon; /* number of times fault anon (case 1a) */ 313 int flt_acow; /* number of times fault anon cow (case 1b) */ 314 int flt_obj; /* number of times fault is on object page (2a) */ 315 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 316 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 317 318 /* daemon counters */ 319 int pdwoke; /* number of times daemon woke up */ 320 int pdrevs; /* number of times daemon rev'd clock hand */ 321 int pdswout; /* number of times daemon called for swapout */ 322 int pdfreed; /* number of pages daemon freed since boot */ 323 int pdscans; /* number of pages daemon scaned since boot */ 324 int pdanscan; /* number of anonymous pages scanned by daemon */ 325 int pdobscan; /* number of object pages scanned by daemon */ 326 int pdreact; /* number of pages daemon reactivated since boot */ 327 int pdbusy; /* number of times daemon found a busy page */ 328 int pdpageouts; /* number of times daemon started a pageout */ 329 int pdpending; /* number of times daemon got a pending pagout */ 330 int pddeact; /* number of pages daemon deactivates */ 331 332 /* kernel memory objects: managed by uvm_km_kmemalloc() only! */ 333 struct uvm_object *kmem_object; 334 struct uvm_object *mb_object; 335 }; 336 337 #ifdef _KERNEL 338 extern struct uvmexp uvmexp; 339 #endif 340 341 /* 342 * Finally, bring in standard UVM headers. 343 */ 344 #include <sys/vmmeter.h> 345 #include <sys/queue.h> 346 #include <uvm/uvm_param.h> 347 #include <sys/lock.h> 348 #include <uvm/uvm_prot.h> 349 #include <uvm/uvm_page.h> 350 #include <uvm/uvm_pmap.h> 351 #include <uvm/uvm_map.h> 352 #include <uvm/uvm_fault.h> 353 #include <uvm/uvm_pager.h> 354 355 /* 356 * Shareable process virtual address space. 357 * May eventually be merged with vm_map. 358 * Several fields are temporary (text, data stuff). 359 */ 360 struct vmspace { 361 struct vm_map vm_map; /* VM address map */ 362 int vm_refcnt; /* number of references */ 363 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 364 /* we copy from vm_startcopy to the end of the structure on fork */ 365 #define vm_startcopy vm_rssize 366 segsz_t vm_rssize; /* current resident set size in pages */ 367 segsz_t vm_swrss; /* resident set size before last swap */ 368 segsz_t vm_tsize; /* text size (pages) XXX */ 369 segsz_t vm_dsize; /* data size (pages) XXX */ 370 segsz_t vm_ssize; /* stack size (pages) */ 371 caddr_t vm_taddr; /* user virtual address of text XXX */ 372 caddr_t vm_daddr; /* user virtual address of data XXX */ 373 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 374 caddr_t vm_minsaddr; /* user VA at top of stack */ 375 }; 376 377 #ifdef _KERNEL 378 379 /* 380 * the various kernel maps, owned by MD code 381 */ 382 extern vm_map_t exec_map; 383 extern vm_map_t kernel_map; 384 extern vm_map_t kmem_map; 385 extern vm_map_t mb_map; 386 extern vm_map_t phys_map; 387 388 /* 389 * macros 390 */ 391 392 /* zalloc zeros memory, alloc does not */ 393 #define uvm_km_zalloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,TRUE) 394 #define uvm_km_alloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,FALSE) 395 396 #endif /* _KERNEL */ 397 398 #ifdef pmap_resident_count 399 #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 400 #else 401 #define vm_resident_count(vm) ((vm)->vm_rssize) 402 #endif 403 404 /* XXX clean up later */ 405 struct buf; 406 struct loadavg; 407 struct proc; 408 struct pmap; 409 struct vmspace; 410 struct vmtotal; 411 struct mount; 412 struct vnode; 413 struct core; 414 415 #ifdef _KERNEL 416 417 /* vm_machdep.c */ 418 void vmapbuf __P((struct buf *, vsize_t)); 419 void vunmapbuf __P((struct buf *, vsize_t)); 420 void pagemove __P((caddr_t, caddr_t, size_t)); 421 #ifndef cpu_swapin 422 void cpu_swapin __P((struct proc *)); 423 #endif 424 #ifndef cpu_swapout 425 void cpu_swapout __P((struct proc *)); 426 #endif 427 428 /* uvm_aobj.c */ 429 struct uvm_object *uao_create __P((vsize_t, int)); 430 void uao_detach __P((struct uvm_object *)); 431 void uao_detach_locked __P((struct uvm_object *)); 432 void uao_reference __P((struct uvm_object *)); 433 void uao_reference_locked __P((struct uvm_object *)); 434 435 /* uvm_bio.c */ 436 void ubc_init __P((void)); 437 void * ubc_alloc __P((struct uvm_object *, voff_t, vsize_t *, 438 int)); 439 void ubc_release __P((void *, vsize_t)); 440 void ubc_flush __P((struct uvm_object *, voff_t, voff_t)); 441 442 /* uvm_fault.c */ 443 int uvm_fault __P((vm_map_t, vaddr_t, vm_fault_t, 444 vm_prot_t)); 445 /* handle a page fault */ 446 447 /* uvm_glue.c */ 448 #if defined(KGDB) 449 void uvm_chgkprot __P((caddr_t, size_t, int)); 450 #endif 451 void uvm_fork __P((struct proc *, struct proc *, boolean_t, 452 void *, size_t, void (*)(void *), void *)); 453 void uvm_exit __P((struct proc *)); 454 void uvm_init_limits __P((struct proc *)); 455 boolean_t uvm_kernacc __P((caddr_t, size_t, int)); 456 __dead void uvm_scheduler __P((void)) __attribute__((noreturn)); 457 void uvm_swapin __P((struct proc *)); 458 boolean_t uvm_useracc __P((caddr_t, size_t, int)); 459 int uvm_vslock __P((struct proc *, caddr_t, size_t, 460 vm_prot_t)); 461 void uvm_vsunlock __P((struct proc *, caddr_t, size_t)); 462 463 464 /* uvm_init.c */ 465 void uvm_init __P((void)); 466 /* init the uvm system */ 467 468 /* uvm_io.c */ 469 int uvm_io __P((vm_map_t, struct uio *)); 470 471 /* uvm_km.c */ 472 vaddr_t uvm_km_alloc1 __P((vm_map_t, vsize_t, boolean_t)); 473 void uvm_km_free __P((vm_map_t, vaddr_t, vsize_t)); 474 void uvm_km_free_wakeup __P((vm_map_t, vaddr_t, 475 vsize_t)); 476 vaddr_t uvm_km_kmemalloc __P((vm_map_t, struct uvm_object *, 477 vsize_t, int)); 478 struct vm_map *uvm_km_suballoc __P((vm_map_t, vaddr_t *, 479 vaddr_t *, vsize_t, int, 480 boolean_t, vm_map_t)); 481 vaddr_t uvm_km_valloc __P((vm_map_t, vsize_t)); 482 vaddr_t uvm_km_valloc_align __P((vm_map_t, vsize_t, vsize_t)); 483 vaddr_t uvm_km_valloc_wait __P((vm_map_t, vsize_t)); 484 vaddr_t uvm_km_valloc_prefer_wait __P((vm_map_t, vsize_t, 485 voff_t)); 486 vaddr_t uvm_km_alloc_poolpage1 __P((vm_map_t, 487 struct uvm_object *, boolean_t)); 488 void uvm_km_free_poolpage1 __P((vm_map_t, vaddr_t)); 489 490 #define uvm_km_alloc_poolpage(waitok) uvm_km_alloc_poolpage1(kmem_map, \ 491 uvmexp.kmem_object, (waitok)) 492 #define uvm_km_free_poolpage(addr) uvm_km_free_poolpage1(kmem_map, (addr)) 493 494 /* uvm_map.c */ 495 int uvm_map __P((vm_map_t, vaddr_t *, vsize_t, 496 struct uvm_object *, voff_t, vsize_t, 497 uvm_flag_t)); 498 int uvm_map_pageable __P((vm_map_t, vaddr_t, 499 vaddr_t, boolean_t, int)); 500 int uvm_map_pageable_all __P((vm_map_t, int, vsize_t)); 501 boolean_t uvm_map_checkprot __P((vm_map_t, vaddr_t, 502 vaddr_t, vm_prot_t)); 503 int uvm_map_protect __P((vm_map_t, vaddr_t, 504 vaddr_t, vm_prot_t, boolean_t)); 505 struct vmspace *uvmspace_alloc __P((vaddr_t, vaddr_t, 506 boolean_t)); 507 void uvmspace_init __P((struct vmspace *, struct pmap *, 508 vaddr_t, vaddr_t, boolean_t)); 509 void uvmspace_exec __P((struct proc *)); 510 struct vmspace *uvmspace_fork __P((struct vmspace *)); 511 void uvmspace_free __P((struct vmspace *)); 512 void uvmspace_share __P((struct proc *, struct proc *)); 513 void uvmspace_unshare __P((struct proc *)); 514 515 516 /* uvm_meter.c */ 517 void uvm_meter __P((void)); 518 int uvm_sysctl __P((int *, u_int, void *, size_t *, 519 void *, size_t, struct proc *)); 520 521 /* uvm_mmap.c */ 522 int uvm_mmap __P((vm_map_t, vaddr_t *, vsize_t, 523 vm_prot_t, vm_prot_t, int, 524 caddr_t, voff_t, vsize_t)); 525 526 /* uvm_page.c */ 527 struct vm_page *uvm_pagealloc_strat __P((struct uvm_object *, 528 voff_t, struct vm_anon *, int, int, int)); 529 #define uvm_pagealloc(obj, off, anon, flags) \ 530 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 531 UVM_PGA_STRAT_NORMAL, 0) 532 void uvm_pagerealloc __P((struct vm_page *, 533 struct uvm_object *, voff_t)); 534 /* Actually, uvm_page_physload takes PF#s which need their own type */ 535 void uvm_page_physload __P((paddr_t, paddr_t, 536 paddr_t, paddr_t, int)); 537 void uvm_setpagesize __P((void)); 538 539 /* uvm_pager.c */ 540 void uvm_aio_biodone1 __P((struct buf *)); 541 void uvm_aio_biodone __P((struct buf *)); 542 void uvm_aio_aiodone __P((struct buf *)); 543 544 /* uvm_pdaemon.c */ 545 void uvm_pageout __P((void *)); 546 void uvm_aiodone_daemon __P((void *)); 547 548 /* uvm_pglist.c */ 549 int uvm_pglistalloc __P((psize_t, paddr_t, 550 paddr_t, paddr_t, paddr_t, 551 struct pglist *, int, int)); 552 void uvm_pglistfree __P((struct pglist *)); 553 554 /* uvm_swap.c */ 555 void uvm_swap_init __P((void)); 556 557 /* uvm_unix.c */ 558 int uvm_coredump __P((struct proc *, struct vnode *, 559 struct ucred *, struct core *)); 560 int uvm_grow __P((struct proc *, vaddr_t)); 561 /* should only be needed if COMPAT_NETBSD32 is defined */ 562 struct core32; 563 int uvm_coredump32 __P((struct proc *, struct vnode *, 564 struct ucred *, struct core32 *)); 565 566 /* uvm_user.c */ 567 int uvm_deallocate __P((vm_map_t, vaddr_t, vsize_t)); 568 569 /* uvm_vnode.c */ 570 void uvm_vnp_setsize __P((struct vnode *, voff_t)); 571 void uvm_vnp_sync __P((struct mount *)); 572 struct uvm_object *uvn_attach __P((void *, vm_prot_t)); 573 void uvn_findpages __P((struct uvm_object *, voff_t, 574 int *, struct vm_page **, int)); 575 void uvm_vnp_zerorange __P((struct vnode *, off_t, size_t)); 576 void uvm_vnp_asyncget __P((struct vnode *, off_t, size_t)); 577 578 /* kern_malloc.c */ 579 void kmeminit_nkmempages __P((void)); 580 void kmeminit __P((void)); 581 extern int nkmempages; 582 583 #endif /* _KERNEL */ 584 585 #endif /* _UVM_UVM_EXTERN_H_ */ 586
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