1 /* $NetBSD: uvm_extern.h,v 1.88 2004/01/04 11:33:32 jdolecek 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 swpgavail; /* number of swap pages currently available */ 283 int swpginuse; /* number of swap pages in use */ 284 int swpgonly; /* number of swap pages in use, not also in RAM */ 285 int nswget; /* number of times fault calls uvm_swap_get() */ 286 int nanon; /* number total of anon's in system */ 287 int nanonneeded;/* number of anons currently needed */ 288 int nfreeanon; /* number of free anon's */ 289 290 /* stat counters */ 291 int faults; /* page fault count */ 292 int traps; /* trap count */ 293 int intrs; /* interrupt count */ 294 int swtch; /* context switch count */ 295 int softs; /* software interrupt count */ 296 int syscalls; /* system calls */ 297 int pageins; /* pagein operation count */ 298 /* pageouts are in pdpageouts below */ 299 int swapins; /* swapins */ 300 int swapouts; /* swapouts */ 301 int pgswapin; /* pages swapped in */ 302 int pgswapout; /* pages swapped out */ 303 int forks; /* forks */ 304 int forks_ppwait; /* forks where parent waits */ 305 int forks_sharevm; /* forks where vmspace is shared */ 306 int pga_zerohit; /* pagealloc where zero wanted and zero 307 was available */ 308 int pga_zeromiss; /* pagealloc where zero wanted and zero 309 not available */ 310 int zeroaborts; /* number of times page zeroing was 311 aborted */ 312 int colorhit; /* pagealloc where we got optimal color */ 313 int colormiss; /* pagealloc where we didn't */ 314 315 /* fault subcounters */ 316 int fltnoram; /* number of times fault was out of ram */ 317 int fltnoanon; /* number of times fault was out of anons */ 318 int fltpgwait; /* number of times fault had to wait on a page */ 319 int fltpgrele; /* number of times fault found a released page */ 320 int fltrelck; /* number of times fault relock called */ 321 int fltrelckok; /* number of times fault relock is a success */ 322 int fltanget; /* number of times fault gets anon page */ 323 int fltanretry; /* number of times fault retrys an anon get */ 324 int fltamcopy; /* number of times fault clears "needs copy" */ 325 int fltnamap; /* number of times fault maps a neighbor anon page */ 326 int fltnomap; /* number of times fault maps a neighbor obj page */ 327 int fltlget; /* number of times fault does a locked pgo_get */ 328 int fltget; /* number of times fault does an unlocked get */ 329 int flt_anon; /* number of times fault anon (case 1a) */ 330 int flt_acow; /* number of times fault anon cow (case 1b) */ 331 int flt_obj; /* number of times fault is on object page (2a) */ 332 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 333 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 334 335 /* daemon counters */ 336 int pdwoke; /* number of times daemon woke up */ 337 int pdrevs; /* number of times daemon rev'd clock hand */ 338 int pdswout; /* number of times daemon called for swapout */ 339 int pdfreed; /* number of pages daemon freed since boot */ 340 int pdscans; /* number of pages daemon scanned since boot */ 341 int pdanscan; /* number of anonymous pages scanned by daemon */ 342 int pdobscan; /* number of object pages scanned by daemon */ 343 int pdreact; /* number of pages daemon reactivated since boot */ 344 int pdbusy; /* number of times daemon found a busy page */ 345 int pdpageouts; /* number of times daemon started a pageout */ 346 int pdpending; /* number of times daemon got a pending pagout */ 347 int pddeact; /* number of pages daemon deactivates */ 348 int pdreanon; /* anon pages reactivated due to thresholds */ 349 int pdrefile; /* file pages reactivated due to thresholds */ 350 int pdreexec; /* executable pages reactivated due to thresholds */ 351 }; 352 353 /* 354 * The following structure is 64-bit alignment safe. New elements 355 * should only be added to the end of this structure so binary 356 * compatibility can be preserved. 357 */ 358 struct uvmexp_sysctl { 359 int64_t pagesize; 360 int64_t pagemask; 361 int64_t pageshift; 362 int64_t npages; 363 int64_t free; 364 int64_t active; 365 int64_t inactive; 366 int64_t paging; 367 int64_t wired; 368 int64_t zeropages; 369 int64_t reserve_pagedaemon; 370 int64_t reserve_kernel; 371 int64_t freemin; 372 int64_t freetarg; 373 int64_t inactarg; 374 int64_t wiredmax; 375 int64_t nswapdev; 376 int64_t swpages; 377 int64_t swpginuse; 378 int64_t swpgonly; 379 int64_t nswget; 380 int64_t nanon; 381 int64_t nanonneeded; 382 int64_t nfreeanon; 383 int64_t faults; 384 int64_t traps; 385 int64_t intrs; 386 int64_t swtch; 387 int64_t softs; 388 int64_t syscalls; 389 int64_t pageins; 390 int64_t swapins; 391 int64_t swapouts; 392 int64_t pgswapin; 393 int64_t pgswapout; 394 int64_t forks; 395 int64_t forks_ppwait; 396 int64_t forks_sharevm; 397 int64_t pga_zerohit; 398 int64_t pga_zeromiss; 399 int64_t zeroaborts; 400 int64_t fltnoram; 401 int64_t fltnoanon; 402 int64_t fltpgwait; 403 int64_t fltpgrele; 404 int64_t fltrelck; 405 int64_t fltrelckok; 406 int64_t fltanget; 407 int64_t fltanretry; 408 int64_t fltamcopy; 409 int64_t fltnamap; 410 int64_t fltnomap; 411 int64_t fltlget; 412 int64_t fltget; 413 int64_t flt_anon; 414 int64_t flt_acow; 415 int64_t flt_obj; 416 int64_t flt_prcopy; 417 int64_t flt_przero; 418 int64_t pdwoke; 419 int64_t pdrevs; 420 int64_t pdswout; 421 int64_t pdfreed; 422 int64_t pdscans; 423 int64_t pdanscan; 424 int64_t pdobscan; 425 int64_t pdreact; 426 int64_t pdbusy; 427 int64_t pdpageouts; 428 int64_t pdpending; 429 int64_t pddeact; 430 int64_t anonpages; 431 int64_t filepages; 432 int64_t execpages; 433 int64_t colorhit; 434 int64_t colormiss; 435 int64_t ncolors; 436 }; 437 438 #ifdef _KERNEL 439 extern struct uvmexp uvmexp; 440 #endif 441 442 /* 443 * Finally, bring in standard UVM headers. 444 */ 445 #include <sys/vmmeter.h> 446 #include <sys/queue.h> 447 #include <uvm/uvm_param.h> 448 #include <sys/lock.h> 449 #include <uvm/uvm_prot.h> 450 #include <uvm/uvm_page.h> 451 #include <uvm/uvm_pmap.h> 452 #include <uvm/uvm_map.h> 453 #include <uvm/uvm_fault.h> 454 #include <uvm/uvm_pager.h> 455 456 /* 457 * Shareable process virtual address space. 458 * May eventually be merged with vm_map. 459 * Several fields are temporary (text, data stuff). 460 */ 461 struct vmspace { 462 struct vm_map vm_map; /* VM address map */ 463 int vm_refcnt; /* number of references */ 464 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 465 /* we copy from vm_startcopy to the end of the structure on fork */ 466 #define vm_startcopy vm_rssize 467 segsz_t vm_rssize; /* current resident set size in pages */ 468 segsz_t vm_swrss; /* resident set size before last swap */ 469 segsz_t vm_tsize; /* text size (pages) XXX */ 470 segsz_t vm_dsize; /* data size (pages) XXX */ 471 segsz_t vm_ssize; /* stack size (pages) */ 472 caddr_t vm_taddr; /* user virtual address of text XXX */ 473 caddr_t vm_daddr; /* user virtual address of data XXX */ 474 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 475 caddr_t vm_minsaddr; /* user VA at top of stack */ 476 }; 477 478 #ifdef _KERNEL 479 480 /* 481 * used to keep state while iterating over the map for a core dump. 482 */ 483 struct uvm_coredump_state { 484 void *cookie; /* opaque for the caller */ 485 vaddr_t start; /* start of region */ 486 vaddr_t end; /* end of region */ 487 vm_prot_t prot; /* protection of region */ 488 int flags; /* flags; see below */ 489 }; 490 491 #define UVM_COREDUMP_STACK 0x01 /* region is user stack */ 492 #define UVM_COREDUMP_NODUMP 0x02 /* don't actually dump this region */ 493 494 /* 495 * the various kernel maps, owned by MD code 496 */ 497 extern struct vm_map *exec_map; 498 extern struct vm_map *kernel_map; 499 extern struct vm_map *kmem_map; 500 extern struct vm_map *mb_map; 501 extern struct vm_map *phys_map; 502 503 /* 504 * macros 505 */ 506 507 /* zalloc zeros memory, alloc does not */ 508 #define uvm_km_zalloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,TRUE) 509 #define uvm_km_alloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,FALSE) 510 511 #endif /* _KERNEL */ 512 513 #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 514 515 struct buf; 516 struct loadavg; 517 struct proc; 518 struct pmap; 519 struct vmspace; 520 struct vmtotal; 521 struct mount; 522 struct vnode; 523 struct core; 524 525 #ifdef _KERNEL 526 #include <sys/mallocvar.h> 527 MALLOC_DECLARE(M_VMMAP); 528 MALLOC_DECLARE(M_VMPMAP); 529 530 /* vm_machdep.c */ 531 void vmapbuf __P((struct buf *, vsize_t)); 532 void vunmapbuf __P((struct buf *, vsize_t)); 533 void pagemove __P((caddr_t, caddr_t, size_t)); 534 #ifndef cpu_swapin 535 void cpu_swapin __P((struct lwp *)); 536 #endif 537 #ifndef cpu_swapout 538 void cpu_swapout __P((struct lwp *)); 539 #endif 540 541 /* uvm_aobj.c */ 542 struct uvm_object *uao_create __P((vsize_t, int)); 543 void uao_detach __P((struct uvm_object *)); 544 void uao_detach_locked __P((struct uvm_object *)); 545 void uao_reference __P((struct uvm_object *)); 546 void uao_reference_locked __P((struct uvm_object *)); 547 548 /* uvm_bio.c */ 549 void ubc_init __P((void)); 550 void * ubc_alloc __P((struct uvm_object *, voff_t, vsize_t *, 551 int)); 552 void ubc_release __P((void *, int)); 553 void ubc_flush __P((struct uvm_object *, voff_t, voff_t)); 554 555 /* uvm_fault.c */ 556 int uvm_fault __P((struct vm_map *, vaddr_t, vm_fault_t, 557 vm_prot_t)); 558 /* handle a page fault */ 559 560 /* uvm_glue.c */ 561 #if defined(KGDB) 562 void uvm_chgkprot __P((caddr_t, size_t, int)); 563 #endif 564 void uvm_proc_fork __P((struct proc *, struct proc *, boolean_t)); 565 void uvm_lwp_fork __P((struct lwp *, struct lwp *, 566 void *, size_t, void (*)(void *), void *)); 567 int uvm_coredump_walkmap __P((struct proc *, 568 struct vnode *, struct ucred *, 569 int (*)(struct proc *, struct vnode *, 570 struct ucred *, 571 struct uvm_coredump_state *), void *)); 572 void uvm_proc_exit __P((struct proc *)); 573 void uvm_lwp_exit __P((struct lwp *)); 574 void uvm_init_limits __P((struct proc *)); 575 boolean_t uvm_kernacc __P((caddr_t, size_t, int)); 576 __dead void uvm_scheduler __P((void)) __attribute__((noreturn)); 577 void uvm_swapin __P((struct lwp *)); 578 boolean_t uvm_uarea_alloc(vaddr_t *); 579 void uvm_uarea_drain(boolean_t); 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_kmemalloc1 __P((struct vm_map *, struct 598 uvm_object *, vsize_t, vsize_t, voff_t, int)); 599 vaddr_t uvm_km_kmemalloc __P((struct vm_map *, struct 600 uvm_object *, vsize_t, int)); 601 struct vm_map *uvm_km_suballoc __P((struct vm_map *, vaddr_t *, 602 vaddr_t *, vsize_t, int, boolean_t, 603 struct vm_map *)); 604 vaddr_t uvm_km_valloc1 __P((struct vm_map *, vsize_t, 605 vsize_t, voff_t, uvm_flag_t)); 606 vaddr_t uvm_km_valloc __P((struct vm_map *, vsize_t)); 607 vaddr_t uvm_km_valloc_align __P((struct vm_map *, vsize_t, 608 vsize_t)); 609 vaddr_t uvm_km_valloc_wait __P((struct vm_map *, vsize_t)); 610 vaddr_t uvm_km_valloc_prefer_wait __P((struct vm_map *, vsize_t, 611 voff_t)); 612 vaddr_t uvm_km_alloc_poolpage1 __P((struct vm_map *, 613 struct uvm_object *, boolean_t)); 614 void uvm_km_free_poolpage1 __P((struct vm_map *, vaddr_t)); 615 616 extern __inline__ vaddr_t 617 uvm_km_kmemalloc(struct vm_map *map, struct uvm_object *obj, vsize_t sz, int flags) 618 { 619 return uvm_km_kmemalloc1(map, obj, sz, 0, UVM_UNKNOWN_OFFSET, flags); 620 } 621 622 extern __inline__ vaddr_t 623 uvm_km_valloc(struct vm_map *map, vsize_t sz) 624 { 625 return uvm_km_valloc1(map, sz, 0, UVM_UNKNOWN_OFFSET, UVM_KMF_NOWAIT); 626 } 627 628 extern __inline__ vaddr_t 629 uvm_km_valloc_align(struct vm_map *map, vsize_t sz, vsize_t align) 630 { 631 return uvm_km_valloc1(map, sz, align, UVM_UNKNOWN_OFFSET, UVM_KMF_NOWAIT); 632 } 633 634 extern __inline__ vaddr_t 635 uvm_km_valloc_prefer_wait(struct vm_map *map, vsize_t sz, voff_t prefer) 636 { 637 return uvm_km_valloc1(map, sz, 0, prefer, 0); 638 } 639 640 extern __inline__ vaddr_t 641 uvm_km_valloc_wait(struct vm_map *map, vsize_t sz) 642 { 643 return uvm_km_valloc1(map, sz, 0, UVM_UNKNOWN_OFFSET, 0); 644 } 645 646 #define uvm_km_alloc_poolpage(waitok) \ 647 uvm_km_alloc_poolpage1(kmem_map, NULL, (waitok)) 648 #define uvm_km_free_poolpage(addr) \ 649 uvm_km_free_poolpage1(kmem_map, (addr)) 650 651 /* uvm_map.c */ 652 int uvm_map __P((struct vm_map *, vaddr_t *, vsize_t, 653 struct uvm_object *, voff_t, vsize_t, 654 uvm_flag_t)); 655 int uvm_map_pageable __P((struct vm_map *, vaddr_t, 656 vaddr_t, boolean_t, int)); 657 int uvm_map_pageable_all __P((struct vm_map *, int, 658 vsize_t)); 659 boolean_t uvm_map_checkprot __P((struct vm_map *, vaddr_t, 660 vaddr_t, vm_prot_t)); 661 int uvm_map_protect __P((struct vm_map *, vaddr_t, 662 vaddr_t, vm_prot_t, boolean_t)); 663 struct vmspace *uvmspace_alloc __P((vaddr_t, vaddr_t)); 664 void uvmspace_init __P((struct vmspace *, struct pmap *, 665 vaddr_t, vaddr_t)); 666 void uvmspace_exec __P((struct lwp *, vaddr_t, vaddr_t)); 667 struct vmspace *uvmspace_fork __P((struct vmspace *)); 668 void uvmspace_free __P((struct vmspace *)); 669 void uvmspace_share __P((struct proc *, struct proc *)); 670 void uvmspace_unshare __P((struct lwp *)); 671 672 673 /* uvm_meter.c */ 674 void uvm_meter __P((void)); 675 int uvm_sysctl __P((int *, u_int, void *, size_t *, 676 void *, size_t, struct proc *)); 677 678 /* uvm_mmap.c */ 679 int uvm_mmap __P((struct vm_map *, vaddr_t *, vsize_t, 680 vm_prot_t, vm_prot_t, int, 681 void *, voff_t, vsize_t)); 682 683 /* uvm_page.c */ 684 struct vm_page *uvm_pagealloc_strat __P((struct uvm_object *, 685 voff_t, struct vm_anon *, int, int, int)); 686 #define uvm_pagealloc(obj, off, anon, flags) \ 687 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 688 UVM_PGA_STRAT_NORMAL, 0) 689 void uvm_pagerealloc __P((struct vm_page *, 690 struct uvm_object *, voff_t)); 691 /* Actually, uvm_page_physload takes PF#s which need their own type */ 692 void uvm_page_physload __P((paddr_t, paddr_t, paddr_t, 693 paddr_t, int)); 694 void uvm_setpagesize __P((void)); 695 696 /* uvm_pager.c */ 697 void uvm_aio_biodone1 __P((struct buf *)); 698 void uvm_aio_biodone __P((struct buf *)); 699 void uvm_aio_aiodone __P((struct buf *)); 700 701 /* uvm_pdaemon.c */ 702 void uvm_pageout __P((void *)); 703 void uvm_aiodone_daemon __P((void *)); 704 705 /* uvm_pglist.c */ 706 int uvm_pglistalloc __P((psize_t, paddr_t, paddr_t, 707 paddr_t, paddr_t, struct pglist *, int, int)); 708 void uvm_pglistfree __P((struct pglist *)); 709 710 /* uvm_swap.c */ 711 void uvm_swap_init __P((void)); 712 713 /* uvm_unix.c */ 714 int uvm_grow __P((struct proc *, vaddr_t)); 715 716 /* uvm_user.c */ 717 void uvm_deallocate __P((struct vm_map *, vaddr_t, vsize_t)); 718 719 /* uvm_vnode.c */ 720 void uvm_vnp_setsize __P((struct vnode *, voff_t)); 721 void uvm_vnp_sync __P((struct mount *)); 722 struct uvm_object *uvn_attach __P((void *, vm_prot_t)); 723 int uvn_findpages __P((struct uvm_object *, voff_t, 724 int *, struct vm_page **, int)); 725 void uvm_vnp_zerorange __P((struct vnode *, off_t, size_t)); 726 727 /* kern_malloc.c */ 728 void kmeminit_nkmempages __P((void)); 729 void kmeminit __P((void)); 730 extern int nkmempages; 731 732 #endif /* _KERNEL */ 733 734 #endif /* _UVM_UVM_EXTERN_H_ */ 735