1 /* $NetBSD: uvm_extern.h,v 1.107 2005/11/29 22:52:03 yamt 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 and POSIX_FADV_* from sys/fcntl.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 /* bits 0xffff0000: 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 #define UVM_FLAG_QUANTUM 0x800000 /* entry never be splitted later */ 147 #define UVM_FLAG_WAITVA 0x1000000 /* wait for va */ 148 #define UVM_FLAG_VAONLY 0x2000000 /* unmap: no pages are mapped */ 149 150 /* macros to extract info */ 151 #define UVM_PROTECTION(X) ((X) & UVM_PROT_MASK) 152 #define UVM_INHERIT(X) (((X) & UVM_INH_MASK) >> 4) 153 #define UVM_MAXPROTECTION(X) (((X) >> 8) & UVM_PROT_MASK) 154 #define UVM_ADVICE(X) (((X) >> 12) & UVM_ADV_MASK) 155 156 #define UVM_MAPFLAG(PROT,MAXPROT,INH,ADVICE,FLAGS) \ 157 ((MAXPROT << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS)) 158 159 /* magic offset value: offset not known(obj) or don't care(!obj) */ 160 #define UVM_UNKNOWN_OFFSET ((voff_t) -1) 161 162 /* 163 * the following defines are for uvm_km_alloc/free's flags 164 */ 165 #define UVM_KMF_WIRED 0x1 /* allocation type: wired */ 166 #define UVM_KMF_PAGEABLE 0x2 /* allocation type: pageable */ 167 #define UVM_KMF_VAONLY 0x4 /* allocation type: VA only */ 168 #define UVM_KMF_TYPEMASK (UVM_KMF_VAONLY | UVM_KMF_PAGEABLE | UVM_KMF_WIRED) 169 #define UVM_KMF_CANFAIL 0x8 /* caller handles failure */ 170 #define UVM_KMF_ZERO 0x10 /* want zero filled memory */ 171 #define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */ 172 #define UVM_KMF_NOWAIT UVM_FLAG_NOWAIT /* not allowed to sleep */ 173 #define UVM_KMF_WAITVA UVM_FLAG_WAITVA /* sleep for va */ 174 175 /* 176 * the following defines the strategies for uvm_pagealloc_strat() 177 */ 178 #define UVM_PGA_STRAT_NORMAL 0 /* high -> low free list walk */ 179 #define UVM_PGA_STRAT_ONLY 1 /* only specified free list */ 180 #define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */ 181 182 /* 183 * flags for uvm_pagealloc_strat() 184 */ 185 #define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */ 186 #define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */ 187 188 /* 189 * flags for ubc_alloc() 190 */ 191 #define UBC_READ 0x01 192 #define UBC_WRITE 0x02 193 #define UBC_FAULTBUSY 0x04 194 195 /* 196 * flags for ubc_release() 197 */ 198 #define UBC_UNMAP 0x01 199 200 /* 201 * helpers for calling ubc_release() 202 */ 203 #ifdef PMAP_CACHE_VIVT 204 #define UBC_WANT_UNMAP(vp) (((vp)->v_flag & VTEXT) != 0) 205 #else 206 #define UBC_WANT_UNMAP(vp) FALSE 207 #endif 208 209 /* 210 * flags for uvn_findpages(). 211 */ 212 #define UFP_ALL 0x00 213 #define UFP_NOWAIT 0x01 214 #define UFP_NOALLOC 0x02 215 #define UFP_NOCACHE 0x04 216 #define UFP_NORDONLY 0x08 217 #define UFP_DIRTYONLY 0x10 218 #define UFP_BACKWARD 0x20 219 220 /* 221 * lockflags that control the locking behavior of various functions. 222 */ 223 #define UVM_LK_ENTER 0x00000001 /* map locked on entry */ 224 #define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */ 225 226 /* 227 * structures 228 */ 229 230 struct buf; 231 struct core; 232 struct loadavg; 233 struct mount; 234 struct pglist; 235 struct proc; 236 struct ucred; 237 struct uio; 238 struct uvm_object; 239 struct vm_anon; 240 struct vmspace; 241 struct pmap; 242 struct vnode; 243 struct pool; 244 struct simplelock; 245 struct vm_map_entry; 246 struct vm_map; 247 struct vm_page; 248 struct vmtotal; 249 250 /* 251 * uvmexp: global data structures that are exported to parts of the kernel 252 * other than the vm system. 253 */ 254 255 struct uvmexp { 256 /* vm_page constants */ 257 int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */ 258 int pagemask; /* page mask */ 259 int pageshift; /* page shift */ 260 261 /* vm_page counters */ 262 int npages; /* number of pages we manage */ 263 int free; /* number of free pages */ 264 int active; /* number of active pages */ 265 int inactive; /* number of pages that we free'd but may want back */ 266 int paging; /* number of pages in the process of being paged out */ 267 int wired; /* number of wired pages */ 268 269 /* 270 * Adding anything before this line will break binary compatibility 271 * with top(1) on NetBSD 1.5. 272 */ 273 274 int ncolors; /* number of page color buckets: must be p-o-2 */ 275 int colormask; /* color bucket mask */ 276 277 int zeropages; /* number of zero'd pages */ 278 int reserve_pagedaemon; /* number of pages reserved for pagedaemon */ 279 int reserve_kernel; /* number of pages reserved for kernel */ 280 int anonpages; /* number of pages used by anon mappings */ 281 int filepages; /* number of pages used by cached file data */ 282 int execpages; /* number of pages used by cached exec data */ 283 284 /* pageout params */ 285 int freemin; /* min number of free pages */ 286 int freetarg; /* target number of free pages */ 287 int inactarg; /* target number of inactive pages */ 288 int wiredmax; /* max number of wired pages */ 289 int anonmin; /* min threshold for anon pages */ 290 int execmin; /* min threshold for executable pages */ 291 int filemin; /* min threshold for file pages */ 292 int anonminpct; /* min percent anon pages */ 293 int execminpct; /* min percent executable pages */ 294 int fileminpct; /* min percent file pages */ 295 int anonmax; /* max threshold for anon pages */ 296 int execmax; /* max threshold for executable pages */ 297 int filemax; /* max threshold for file pages */ 298 int anonmaxpct; /* max percent anon pages */ 299 int execmaxpct; /* max percent executable pages */ 300 int filemaxpct; /* max percent file pages */ 301 302 /* swap */ 303 int nswapdev; /* number of configured swap devices in system */ 304 int swpages; /* number of PAGE_SIZE'ed swap pages */ 305 int swpgavail; /* number of swap pages currently available */ 306 int swpginuse; /* number of swap pages in use */ 307 int swpgonly; /* number of swap pages in use, not also in RAM */ 308 int nswget; /* number of times fault calls uvm_swap_get() */ 309 int unused1; /* used to be nanon */ 310 int unused2; /* used to be nanonneeded */ 311 int unused3; /* used to be nfreeanon */ 312 313 /* stat counters */ 314 int faults; /* page fault count */ 315 int traps; /* trap count */ 316 int intrs; /* interrupt count */ 317 int swtch; /* context switch count */ 318 int softs; /* software interrupt count */ 319 int syscalls; /* system calls */ 320 int pageins; /* pagein operation count */ 321 /* pageouts are in pdpageouts below */ 322 int swapins; /* swapins */ 323 int swapouts; /* swapouts */ 324 int pgswapin; /* pages swapped in */ 325 int pgswapout; /* pages swapped out */ 326 int forks; /* forks */ 327 int forks_ppwait; /* forks where parent waits */ 328 int forks_sharevm; /* forks where vmspace is shared */ 329 int pga_zerohit; /* pagealloc where zero wanted and zero 330 was available */ 331 int pga_zeromiss; /* pagealloc where zero wanted and zero 332 not available */ 333 int zeroaborts; /* number of times page zeroing was 334 aborted */ 335 int colorhit; /* pagealloc where we got optimal color */ 336 int colormiss; /* pagealloc where we didn't */ 337 338 /* fault subcounters */ 339 int fltnoram; /* number of times fault was out of ram */ 340 int fltnoanon; /* number of times fault was out of anons */ 341 int fltpgwait; /* number of times fault had to wait on a page */ 342 int fltpgrele; /* number of times fault found a released page */ 343 int fltrelck; /* number of times fault relock called */ 344 int fltrelckok; /* number of times fault relock is a success */ 345 int fltanget; /* number of times fault gets anon page */ 346 int fltanretry; /* number of times fault retrys an anon get */ 347 int fltamcopy; /* number of times fault clears "needs copy" */ 348 int fltnamap; /* number of times fault maps a neighbor anon page */ 349 int fltnomap; /* number of times fault maps a neighbor obj page */ 350 int fltlget; /* number of times fault does a locked pgo_get */ 351 int fltget; /* number of times fault does an unlocked get */ 352 int flt_anon; /* number of times fault anon (case 1a) */ 353 int flt_acow; /* number of times fault anon cow (case 1b) */ 354 int flt_obj; /* number of times fault is on object page (2a) */ 355 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 356 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 357 358 /* daemon counters */ 359 int pdwoke; /* number of times daemon woke up */ 360 int pdrevs; /* number of times daemon rev'd clock hand */ 361 int pdswout; /* number of times daemon called for swapout */ 362 int pdfreed; /* number of pages daemon freed since boot */ 363 int pdscans; /* number of pages daemon scanned since boot */ 364 int pdanscan; /* number of anonymous pages scanned by daemon */ 365 int pdobscan; /* number of object pages scanned by daemon */ 366 int pdreact; /* number of pages daemon reactivated since boot */ 367 int pdbusy; /* number of times daemon found a busy page */ 368 int pdpageouts; /* number of times daemon started a pageout */ 369 int pdpending; /* number of times daemon got a pending pagout */ 370 int pddeact; /* number of pages daemon deactivates */ 371 int pdreanon; /* anon pages reactivated due to thresholds */ 372 int pdrefile; /* file pages reactivated due to thresholds */ 373 int pdreexec; /* executable pages reactivated due to thresholds */ 374 }; 375 376 /* 377 * The following structure is 64-bit alignment safe. New elements 378 * should only be added to the end of this structure so binary 379 * compatibility can be preserved. 380 */ 381 struct uvmexp_sysctl { 382 int64_t pagesize; 383 int64_t pagemask; 384 int64_t pageshift; 385 int64_t npages; 386 int64_t free; 387 int64_t active; 388 int64_t inactive; 389 int64_t paging; 390 int64_t wired; 391 int64_t zeropages; 392 int64_t reserve_pagedaemon; 393 int64_t reserve_kernel; 394 int64_t freemin; 395 int64_t freetarg; 396 int64_t inactarg; 397 int64_t wiredmax; 398 int64_t nswapdev; 399 int64_t swpages; 400 int64_t swpginuse; 401 int64_t swpgonly; 402 int64_t nswget; 403 int64_t unused1; /* used to be nanon */ 404 int64_t unused2; /* used to be nanonneeded */ 405 int64_t unused3; /* used to be nfreeanon */ 406 int64_t faults; 407 int64_t traps; 408 int64_t intrs; 409 int64_t swtch; 410 int64_t softs; 411 int64_t syscalls; 412 int64_t pageins; 413 int64_t swapins; 414 int64_t swapouts; 415 int64_t pgswapin; 416 int64_t pgswapout; 417 int64_t forks; 418 int64_t forks_ppwait; 419 int64_t forks_sharevm; 420 int64_t pga_zerohit; 421 int64_t pga_zeromiss; 422 int64_t zeroaborts; 423 int64_t fltnoram; 424 int64_t fltnoanon; 425 int64_t fltpgwait; 426 int64_t fltpgrele; 427 int64_t fltrelck; 428 int64_t fltrelckok; 429 int64_t fltanget; 430 int64_t fltanretry; 431 int64_t fltamcopy; 432 int64_t fltnamap; 433 int64_t fltnomap; 434 int64_t fltlget; 435 int64_t fltget; 436 int64_t flt_anon; 437 int64_t flt_acow; 438 int64_t flt_obj; 439 int64_t flt_prcopy; 440 int64_t flt_przero; 441 int64_t pdwoke; 442 int64_t pdrevs; 443 int64_t pdswout; 444 int64_t pdfreed; 445 int64_t pdscans; 446 int64_t pdanscan; 447 int64_t pdobscan; 448 int64_t pdreact; 449 int64_t pdbusy; 450 int64_t pdpageouts; 451 int64_t pdpending; 452 int64_t pddeact; 453 int64_t anonpages; 454 int64_t filepages; 455 int64_t execpages; 456 int64_t colorhit; 457 int64_t colormiss; 458 int64_t ncolors; 459 }; 460 461 #ifdef _KERNEL 462 /* we need this before including uvm_page.h on some platforms */ 463 extern struct uvmexp uvmexp; 464 #endif 465 466 /* 467 * Finally, bring in standard UVM headers. 468 */ 469 #include <sys/vmmeter.h> 470 #include <sys/queue.h> 471 #include <uvm/uvm_param.h> 472 #include <sys/lock.h> 473 #include <uvm/uvm_prot.h> 474 #include <uvm/uvm_page.h> 475 #include <uvm/uvm_pmap.h> 476 #include <uvm/uvm_map.h> 477 #include <uvm/uvm_fault.h> 478 #include <uvm/uvm_pager.h> 479 480 /* 481 * Shareable process virtual address space. 482 * May eventually be merged with vm_map. 483 * Several fields are temporary (text, data stuff). 484 */ 485 struct vmspace { 486 struct vm_map vm_map; /* VM address map */ 487 int vm_refcnt; /* number of references * 488 * note: protected by vm_map.ref_lock */ 489 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 490 /* we copy from vm_startcopy to the end of the structure on fork */ 491 #define vm_startcopy vm_rssize 492 segsz_t vm_rssize; /* current resident set size in pages */ 493 segsz_t vm_swrss; /* resident set size before last swap */ 494 segsz_t vm_tsize; /* text size (pages) XXX */ 495 segsz_t vm_dsize; /* data size (pages) XXX */ 496 segsz_t vm_ssize; /* stack size (pages) */ 497 caddr_t vm_taddr; /* user virtual address of text XXX */ 498 caddr_t vm_daddr; /* user virtual address of data XXX */ 499 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 500 caddr_t vm_minsaddr; /* user VA at top of stack */ 501 }; 502 503 #ifdef _KERNEL 504 505 extern struct pool *uvm_aiobuf_pool; 506 507 /* 508 * used to keep state while iterating over the map for a core dump. 509 */ 510 struct uvm_coredump_state { 511 void *cookie; /* opaque for the caller */ 512 vaddr_t start; /* start of region */ 513 vaddr_t realend; /* real end of region */ 514 vaddr_t end; /* virtual end of region */ 515 vm_prot_t prot; /* protection of region */ 516 int flags; /* flags; see below */ 517 }; 518 519 #define UVM_COREDUMP_STACK 0x01 /* region is user stack */ 520 521 /* 522 * the various kernel maps, owned by MD code 523 */ 524 extern struct vm_map *exec_map; 525 extern struct vm_map *kernel_map; 526 extern struct vm_map *kmem_map; 527 extern struct vm_map *mb_map; 528 extern struct vm_map *phys_map; 529 530 /* 531 * macros 532 */ 533 534 #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 535 536 #include <sys/mallocvar.h> 537 MALLOC_DECLARE(M_VMMAP); 538 MALLOC_DECLARE(M_VMPMAP); 539 540 /* vm_machdep.c */ 541 void vmapbuf(struct buf *, vsize_t); 542 void vunmapbuf(struct buf *, vsize_t); 543 #ifndef cpu_swapin 544 void cpu_swapin(struct lwp *); 545 #endif 546 #ifndef cpu_swapout 547 void cpu_swapout(struct lwp *); 548 #endif 549 550 /* uvm_aobj.c */ 551 struct uvm_object *uao_create(vsize_t, int); 552 void uao_detach(struct uvm_object *); 553 void uao_detach_locked(struct uvm_object *); 554 void uao_reference(struct uvm_object *); 555 void uao_reference_locked(struct uvm_object *); 556 557 /* uvm_bio.c */ 558 void ubc_init(void); 559 void * ubc_alloc(struct uvm_object *, voff_t, vsize_t *, int, 560 int); 561 void ubc_release(void *, int); 562 void ubc_flush(struct uvm_object *, voff_t, voff_t); 563 564 /* uvm_fault.c */ 565 int uvm_fault(struct vm_map *, vaddr_t, vm_fault_t, 566 vm_prot_t); 567 /* handle a page fault */ 568 569 /* uvm_glue.c */ 570 #if defined(KGDB) 571 void uvm_chgkprot(caddr_t, size_t, int); 572 #endif 573 void uvm_proc_fork(struct proc *, struct proc *, boolean_t); 574 void uvm_lwp_fork(struct lwp *, struct lwp *, 575 void *, size_t, void (*)(void *), void *); 576 int uvm_coredump_walkmap(struct proc *, 577 void *, 578 int (*)(struct proc *, void *, 579 struct uvm_coredump_state *), void *); 580 void uvm_proc_exit(struct proc *); 581 void uvm_lwp_exit(struct lwp *); 582 void uvm_init_limits(struct proc *); 583 boolean_t uvm_kernacc(caddr_t, size_t, int); 584 __dead void uvm_scheduler(void) __attribute__((noreturn)); 585 void uvm_swapin(struct lwp *); 586 boolean_t uvm_uarea_alloc(vaddr_t *); 587 void uvm_uarea_drain(boolean_t); 588 int uvm_vslock(struct proc *, caddr_t, size_t, vm_prot_t); 589 void uvm_vsunlock(struct proc *, caddr_t, size_t); 590 591 592 /* uvm_init.c */ 593 void uvm_init(void); 594 595 /* uvm_io.c */ 596 int uvm_io(struct vm_map *, struct uio *); 597 598 /* uvm_km.c */ 599 vaddr_t uvm_km_alloc(struct vm_map *, vsize_t, vsize_t, 600 uvm_flag_t); 601 void uvm_km_free(struct vm_map *, vaddr_t, vsize_t, 602 uvm_flag_t); 603 604 struct vm_map *uvm_km_suballoc(struct vm_map *, vaddr_t *, 605 vaddr_t *, vsize_t, int, boolean_t, 606 struct vm_map_kernel *); 607 vaddr_t uvm_km_alloc_poolpage(struct vm_map *, boolean_t); 608 void uvm_km_free_poolpage(struct vm_map *, vaddr_t); 609 vaddr_t uvm_km_alloc_poolpage_cache(struct vm_map *, boolean_t); 610 void uvm_km_free_poolpage_cache(struct vm_map *, vaddr_t); 611 void uvm_km_vacache_init(struct vm_map *, 612 const char *, size_t); 613 614 /* uvm_map.c */ 615 int uvm_map(struct vm_map *, vaddr_t *, vsize_t, 616 struct uvm_object *, voff_t, vsize_t, 617 uvm_flag_t); 618 int uvm_map_pageable(struct vm_map *, vaddr_t, 619 vaddr_t, boolean_t, int); 620 int uvm_map_pageable_all(struct vm_map *, int, vsize_t); 621 boolean_t uvm_map_checkprot(struct vm_map *, vaddr_t, 622 vaddr_t, vm_prot_t); 623 int uvm_map_protect(struct vm_map *, vaddr_t, 624 vaddr_t, vm_prot_t, boolean_t); 625 struct vmspace *uvmspace_alloc(vaddr_t, vaddr_t); 626 void uvmspace_init(struct vmspace *, struct pmap *, 627 vaddr_t, vaddr_t); 628 void uvmspace_exec(struct lwp *, vaddr_t, vaddr_t); 629 struct vmspace *uvmspace_fork(struct vmspace *); 630 void uvmspace_free(struct vmspace *); 631 void uvmspace_share(struct proc *, struct proc *); 632 void uvmspace_unshare(struct lwp *); 633 634 635 /* uvm_meter.c */ 636 void uvm_meter(void); 637 int uvm_sysctl(int *, u_int, void *, size_t *, 638 void *, size_t, struct proc *); 639 640 /* uvm_mmap.c */ 641 int uvm_mmap(struct vm_map *, vaddr_t *, vsize_t, 642 vm_prot_t, vm_prot_t, int, 643 void *, voff_t, vsize_t); 644 vaddr_t uvm_default_mapaddr(struct proc *, vaddr_t, vsize_t); 645 646 /* uvm_page.c */ 647 struct vm_page *uvm_pagealloc_strat(struct uvm_object *, 648 voff_t, struct vm_anon *, int, int, int); 649 #define uvm_pagealloc(obj, off, anon, flags) \ 650 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 651 UVM_PGA_STRAT_NORMAL, 0) 652 void uvm_pagereplace(struct vm_page *, 653 struct vm_page *); 654 void uvm_pagerealloc(struct vm_page *, 655 struct uvm_object *, voff_t); 656 /* Actually, uvm_page_physload takes PF#s which need their own type */ 657 void uvm_page_physload(paddr_t, paddr_t, paddr_t, 658 paddr_t, int); 659 void uvm_setpagesize(void); 660 661 /* uvm_pager.c */ 662 void uvm_aio_biodone1(struct buf *); 663 void uvm_aio_biodone(struct buf *); 664 void uvm_aio_aiodone(struct buf *); 665 666 /* uvm_pdaemon.c */ 667 void uvm_pageout(void *); 668 void uvm_aiodone_daemon(void *); 669 670 /* uvm_pglist.c */ 671 int uvm_pglistalloc(psize_t, paddr_t, paddr_t, 672 paddr_t, paddr_t, struct pglist *, int, int); 673 void uvm_pglistfree(struct pglist *); 674 675 /* uvm_swap.c */ 676 void uvm_swap_init(void); 677 678 /* uvm_unix.c */ 679 int uvm_grow(struct proc *, vaddr_t); 680 681 /* uvm_user.c */ 682 void uvm_deallocate(struct vm_map *, vaddr_t, vsize_t); 683 684 /* uvm_vnode.c */ 685 void uvm_vnp_setsize(struct vnode *, voff_t); 686 void uvm_vnp_sync(struct mount *); 687 struct uvm_object *uvn_attach(void *, vm_prot_t); 688 int uvn_findpages(struct uvm_object *, voff_t, 689 int *, struct vm_page **, int); 690 void uvm_vnp_zerorange(struct vnode *, off_t, size_t); 691 692 /* kern_malloc.c */ 693 void kmeminit_nkmempages(void); 694 void kmeminit(void); 695 extern int nkmempages; 696 697 #endif /* _KERNEL */ 698 699 #endif /* _UVM_UVM_EXTERN_H_ */ 700