uvm_extern.h revision 1.98
1 /* $NetBSD: uvm_extern.h,v 1.98 2005/01/13 11:50:32 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 */ 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 */ 148 149 /* macros to extract info */ 150 #define UVM_PROTECTION(X) ((X) & UVM_PROT_MASK) 151 #define UVM_INHERIT(X) (((X) & UVM_INH_MASK) >> 4) 152 #define UVM_MAXPROTECTION(X) (((X) >> 8) & UVM_PROT_MASK) 153 #define UVM_ADVICE(X) (((X) >> 12) & UVM_ADV_MASK) 154 155 #define UVM_MAPFLAG(PROT,MAXPROT,INH,ADVICE,FLAGS) \ 156 ((MAXPROT << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS)) 157 158 /* magic offset value: offset not known(obj) or don't care(!obj) */ 159 #define UVM_UNKNOWN_OFFSET ((voff_t) -1) 160 161 /* 162 * the following defines are for uvm_km_kmemalloc's flags 163 */ 164 #define UVM_KMF_VALLOC 0x1 /* allocate VA only */ 165 #define UVM_KMF_CANFAIL 0x2 /* caller handles failure */ 166 #define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */ 167 #define UVM_KMF_NOWAIT UVM_FLAG_NOWAIT /* not allowed to sleep */ 168 169 /* 170 * the following defines the strategies for uvm_pagealloc_strat() 171 */ 172 #define UVM_PGA_STRAT_NORMAL 0 /* high -> low free list walk */ 173 #define UVM_PGA_STRAT_ONLY 1 /* only specified free list */ 174 #define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */ 175 176 /* 177 * flags for uvm_pagealloc_strat() 178 */ 179 #define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */ 180 #define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */ 181 182 /* 183 * flags for ubc_alloc() 184 */ 185 #define UBC_READ 0x01 186 #define UBC_WRITE 0x02 187 #define UBC_FAULTBUSY 0x04 188 189 /* 190 * flags for ubc_release() 191 */ 192 #define UBC_UNMAP 0x01 193 194 /* 195 * helpers for calling ubc_release() 196 */ 197 #ifdef PMAP_CACHE_VIVT 198 #define UBC_WANT_UNMAP(vp) (((vp)->v_flag & VTEXT) != 0) 199 #else 200 #define UBC_WANT_UNMAP(vp) FALSE 201 #endif 202 203 /* 204 * flags for uvn_findpages(). 205 */ 206 #define UFP_ALL 0x00 207 #define UFP_NOWAIT 0x01 208 #define UFP_NOALLOC 0x02 209 #define UFP_NOCACHE 0x04 210 #define UFP_NORDONLY 0x08 211 #define UFP_DIRTYONLY 0x10 212 #define UFP_BACKWARD 0x20 213 214 /* 215 * lockflags that control the locking behavior of various functions. 216 */ 217 #define UVM_LK_ENTER 0x00000001 /* map locked on entry */ 218 #define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */ 219 220 /* 221 * structures 222 */ 223 224 struct buf; 225 struct core; 226 struct loadavg; 227 struct mount; 228 struct pglist; 229 struct proc; 230 struct ucred; 231 struct uio; 232 struct uvm_object; 233 struct vm_anon; 234 struct vmspace; 235 struct pmap; 236 struct vnode; 237 struct pool; 238 struct simplelock; 239 struct vm_map_entry; 240 struct vm_map; 241 struct vm_page; 242 struct vmspace; 243 struct vmtotal; 244 245 /* 246 * uvmexp: global data structures that are exported to parts of the kernel 247 * other than the vm system. 248 */ 249 250 struct uvmexp { 251 /* vm_page constants */ 252 int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */ 253 int pagemask; /* page mask */ 254 int pageshift; /* page shift */ 255 256 /* vm_page counters */ 257 int npages; /* number of pages we manage */ 258 int free; /* number of free pages */ 259 int active; /* number of active pages */ 260 int inactive; /* number of pages that we free'd but may want back */ 261 int paging; /* number of pages in the process of being paged out */ 262 int wired; /* number of wired pages */ 263 264 /* 265 * Adding anything before this line will break binary compatibility 266 * with top(1) on NetBSD 1.5. 267 */ 268 269 int ncolors; /* number of page color buckets: must be p-o-2 */ 270 int colormask; /* color bucket mask */ 271 272 int zeropages; /* number of zero'd pages */ 273 int reserve_pagedaemon; /* number of pages reserved for pagedaemon */ 274 int reserve_kernel; /* number of pages reserved for kernel */ 275 int anonpages; /* number of pages used by anon mappings */ 276 int filepages; /* number of pages used by cached file data */ 277 int execpages; /* number of pages used by cached exec data */ 278 279 /* pageout params */ 280 int freemin; /* min number of free pages */ 281 int freetarg; /* target number of free pages */ 282 int inactarg; /* target number of inactive pages */ 283 int wiredmax; /* max number of wired pages */ 284 int anonmin; /* min threshold for anon pages */ 285 int execmin; /* min threshold for executable pages */ 286 int filemin; /* min threshold for file pages */ 287 int anonminpct; /* min percent anon pages */ 288 int execminpct; /* min percent executable pages */ 289 int fileminpct; /* min percent file pages */ 290 int anonmax; /* max threshold for anon pages */ 291 int execmax; /* max threshold for executable pages */ 292 int filemax; /* max threshold for file pages */ 293 int anonmaxpct; /* max percent anon pages */ 294 int execmaxpct; /* max percent executable pages */ 295 int filemaxpct; /* max percent file pages */ 296 297 /* swap */ 298 int nswapdev; /* number of configured swap devices in system */ 299 int swpages; /* number of PAGE_SIZE'ed swap pages */ 300 int swpgavail; /* number of swap pages currently available */ 301 int swpginuse; /* number of swap pages in use */ 302 int swpgonly; /* number of swap pages in use, not also in RAM */ 303 int nswget; /* number of times fault calls uvm_swap_get() */ 304 int nanon; /* number total of anon's in system */ 305 int nanonneeded;/* number of anons currently needed */ 306 int nfreeanon; /* number of free anon's */ 307 308 /* stat counters */ 309 int faults; /* page fault count */ 310 int traps; /* trap count */ 311 int intrs; /* interrupt count */ 312 int swtch; /* context switch count */ 313 int softs; /* software interrupt count */ 314 int syscalls; /* system calls */ 315 int pageins; /* pagein operation count */ 316 /* pageouts are in pdpageouts below */ 317 int swapins; /* swapins */ 318 int swapouts; /* swapouts */ 319 int pgswapin; /* pages swapped in */ 320 int pgswapout; /* pages swapped out */ 321 int forks; /* forks */ 322 int forks_ppwait; /* forks where parent waits */ 323 int forks_sharevm; /* forks where vmspace is shared */ 324 int pga_zerohit; /* pagealloc where zero wanted and zero 325 was available */ 326 int pga_zeromiss; /* pagealloc where zero wanted and zero 327 not available */ 328 int zeroaborts; /* number of times page zeroing was 329 aborted */ 330 int colorhit; /* pagealloc where we got optimal color */ 331 int colormiss; /* pagealloc where we didn't */ 332 333 /* fault subcounters */ 334 int fltnoram; /* number of times fault was out of ram */ 335 int fltnoanon; /* number of times fault was out of anons */ 336 int fltpgwait; /* number of times fault had to wait on a page */ 337 int fltpgrele; /* number of times fault found a released page */ 338 int fltrelck; /* number of times fault relock called */ 339 int fltrelckok; /* number of times fault relock is a success */ 340 int fltanget; /* number of times fault gets anon page */ 341 int fltanretry; /* number of times fault retrys an anon get */ 342 int fltamcopy; /* number of times fault clears "needs copy" */ 343 int fltnamap; /* number of times fault maps a neighbor anon page */ 344 int fltnomap; /* number of times fault maps a neighbor obj page */ 345 int fltlget; /* number of times fault does a locked pgo_get */ 346 int fltget; /* number of times fault does an unlocked get */ 347 int flt_anon; /* number of times fault anon (case 1a) */ 348 int flt_acow; /* number of times fault anon cow (case 1b) */ 349 int flt_obj; /* number of times fault is on object page (2a) */ 350 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 351 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 352 353 /* daemon counters */ 354 int pdwoke; /* number of times daemon woke up */ 355 int pdrevs; /* number of times daemon rev'd clock hand */ 356 int pdswout; /* number of times daemon called for swapout */ 357 int pdfreed; /* number of pages daemon freed since boot */ 358 int pdscans; /* number of pages daemon scanned since boot */ 359 int pdanscan; /* number of anonymous pages scanned by daemon */ 360 int pdobscan; /* number of object pages scanned by daemon */ 361 int pdreact; /* number of pages daemon reactivated since boot */ 362 int pdbusy; /* number of times daemon found a busy page */ 363 int pdpageouts; /* number of times daemon started a pageout */ 364 int pdpending; /* number of times daemon got a pending pagout */ 365 int pddeact; /* number of pages daemon deactivates */ 366 int pdreanon; /* anon pages reactivated due to thresholds */ 367 int pdrefile; /* file pages reactivated due to thresholds */ 368 int pdreexec; /* executable pages reactivated due to thresholds */ 369 }; 370 371 /* 372 * The following structure is 64-bit alignment safe. New elements 373 * should only be added to the end of this structure so binary 374 * compatibility can be preserved. 375 */ 376 struct uvmexp_sysctl { 377 int64_t pagesize; 378 int64_t pagemask; 379 int64_t pageshift; 380 int64_t npages; 381 int64_t free; 382 int64_t active; 383 int64_t inactive; 384 int64_t paging; 385 int64_t wired; 386 int64_t zeropages; 387 int64_t reserve_pagedaemon; 388 int64_t reserve_kernel; 389 int64_t freemin; 390 int64_t freetarg; 391 int64_t inactarg; 392 int64_t wiredmax; 393 int64_t nswapdev; 394 int64_t swpages; 395 int64_t swpginuse; 396 int64_t swpgonly; 397 int64_t nswget; 398 int64_t nanon; 399 int64_t nanonneeded; 400 int64_t nfreeanon; 401 int64_t faults; 402 int64_t traps; 403 int64_t intrs; 404 int64_t swtch; 405 int64_t softs; 406 int64_t syscalls; 407 int64_t pageins; 408 int64_t swapins; 409 int64_t swapouts; 410 int64_t pgswapin; 411 int64_t pgswapout; 412 int64_t forks; 413 int64_t forks_ppwait; 414 int64_t forks_sharevm; 415 int64_t pga_zerohit; 416 int64_t pga_zeromiss; 417 int64_t zeroaborts; 418 int64_t fltnoram; 419 int64_t fltnoanon; 420 int64_t fltpgwait; 421 int64_t fltpgrele; 422 int64_t fltrelck; 423 int64_t fltrelckok; 424 int64_t fltanget; 425 int64_t fltanretry; 426 int64_t fltamcopy; 427 int64_t fltnamap; 428 int64_t fltnomap; 429 int64_t fltlget; 430 int64_t fltget; 431 int64_t flt_anon; 432 int64_t flt_acow; 433 int64_t flt_obj; 434 int64_t flt_prcopy; 435 int64_t flt_przero; 436 int64_t pdwoke; 437 int64_t pdrevs; 438 int64_t pdswout; 439 int64_t pdfreed; 440 int64_t pdscans; 441 int64_t pdanscan; 442 int64_t pdobscan; 443 int64_t pdreact; 444 int64_t pdbusy; 445 int64_t pdpageouts; 446 int64_t pdpending; 447 int64_t pddeact; 448 int64_t anonpages; 449 int64_t filepages; 450 int64_t execpages; 451 int64_t colorhit; 452 int64_t colormiss; 453 int64_t ncolors; 454 }; 455 456 #ifdef _KERNEL 457 /* we need this before including uvm_page.h on some platforms */ 458 extern struct uvmexp uvmexp; 459 #endif 460 461 /* 462 * Finally, bring in standard UVM headers. 463 */ 464 #include <sys/vmmeter.h> 465 #include <sys/queue.h> 466 #include <uvm/uvm_param.h> 467 #include <sys/lock.h> 468 #include <uvm/uvm_prot.h> 469 #include <uvm/uvm_page.h> 470 #include <uvm/uvm_pmap.h> 471 #include <uvm/uvm_map.h> 472 #include <uvm/uvm_fault.h> 473 #include <uvm/uvm_pager.h> 474 475 /* 476 * Shareable process virtual address space. 477 * May eventually be merged with vm_map. 478 * Several fields are temporary (text, data stuff). 479 */ 480 struct vmspace { 481 struct vm_map vm_map; /* VM address map */ 482 int vm_refcnt; /* number of references * 483 * note: protected by vm_map.ref_lock */ 484 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 485 /* we copy from vm_startcopy to the end of the structure on fork */ 486 #define vm_startcopy vm_rssize 487 segsz_t vm_rssize; /* current resident set size in pages */ 488 segsz_t vm_swrss; /* resident set size before last swap */ 489 segsz_t vm_tsize; /* text size (pages) XXX */ 490 segsz_t vm_dsize; /* data size (pages) XXX */ 491 segsz_t vm_ssize; /* stack size (pages) */ 492 caddr_t vm_taddr; /* user virtual address of text XXX */ 493 caddr_t vm_daddr; /* user virtual address of data XXX */ 494 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 495 caddr_t vm_minsaddr; /* user VA at top of stack */ 496 }; 497 498 #ifdef _KERNEL 499 500 extern struct pool *uvm_aiobuf_pool; 501 502 /* 503 * used to keep state while iterating over the map for a core dump. 504 */ 505 struct uvm_coredump_state { 506 void *cookie; /* opaque for the caller */ 507 vaddr_t start; /* start of region */ 508 vaddr_t end; /* end of region */ 509 vm_prot_t prot; /* protection of region */ 510 int flags; /* flags; see below */ 511 }; 512 513 #define UVM_COREDUMP_STACK 0x01 /* region is user stack */ 514 #define UVM_COREDUMP_NODUMP 0x02 /* don't actually dump this region */ 515 516 /* 517 * the various kernel maps, owned by MD code 518 */ 519 extern struct vm_map *exec_map; 520 extern struct vm_map *kernel_map; 521 extern struct vm_map *kmem_map; 522 extern struct vm_map *mb_map; 523 extern struct vm_map *phys_map; 524 525 /* 526 * macros 527 */ 528 529 /* zalloc zeros memory, alloc does not */ 530 #define uvm_km_zalloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,TRUE) 531 #define uvm_km_alloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,FALSE) 532 533 #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 534 535 #include <sys/mallocvar.h> 536 MALLOC_DECLARE(M_VMMAP); 537 MALLOC_DECLARE(M_VMPMAP); 538 539 /* vm_machdep.c */ 540 void vmapbuf(struct buf *, vsize_t); 541 void vunmapbuf(struct buf *, vsize_t); 542 #ifndef cpu_swapin 543 void cpu_swapin(struct lwp *); 544 #endif 545 #ifndef cpu_swapout 546 void cpu_swapout(struct lwp *); 547 #endif 548 549 /* uvm_aobj.c */ 550 struct uvm_object *uao_create(vsize_t, int); 551 void uao_detach(struct uvm_object *); 552 void uao_detach_locked(struct uvm_object *); 553 void uao_reference(struct uvm_object *); 554 void uao_reference_locked(struct uvm_object *); 555 556 /* uvm_bio.c */ 557 void ubc_init(void); 558 void * ubc_alloc(struct uvm_object *, voff_t, vsize_t *, int); 559 void ubc_release(void *, int); 560 void ubc_flush(struct uvm_object *, voff_t, voff_t); 561 562 /* uvm_fault.c */ 563 int uvm_fault(struct vm_map *, vaddr_t, vm_fault_t, 564 vm_prot_t); 565 /* handle a page fault */ 566 567 /* uvm_glue.c */ 568 #if defined(KGDB) 569 void uvm_chgkprot(caddr_t, size_t, int); 570 #endif 571 void uvm_proc_fork(struct proc *, struct proc *, boolean_t); 572 void uvm_lwp_fork(struct lwp *, struct lwp *, 573 void *, size_t, void (*)(void *), void *); 574 int uvm_coredump_walkmap(struct proc *, 575 struct vnode *, struct ucred *, 576 int (*)(struct proc *, struct vnode *, 577 struct ucred *, 578 struct uvm_coredump_state *), void *); 579 void uvm_proc_exit(struct proc *); 580 void uvm_lwp_exit(struct lwp *); 581 void uvm_init_limits(struct proc *); 582 boolean_t uvm_kernacc(caddr_t, size_t, int); 583 __dead void uvm_scheduler(void) __attribute__((noreturn)); 584 void uvm_swapin(struct lwp *); 585 boolean_t uvm_uarea_alloc(vaddr_t *); 586 void uvm_uarea_drain(boolean_t); 587 int uvm_vslock(struct proc *, caddr_t, size_t, vm_prot_t); 588 void uvm_vsunlock(struct proc *, caddr_t, size_t); 589 590 591 /* uvm_init.c */ 592 void uvm_init(void); 593 594 /* uvm_io.c */ 595 int uvm_io(struct vm_map *, struct uio *); 596 597 /* uvm_km.c */ 598 vaddr_t uvm_km_alloc1(struct vm_map *, vsize_t, boolean_t); 599 void uvm_km_free(struct vm_map *, vaddr_t, vsize_t); 600 #define uvm_km_free_wakeup(map, start, size) uvm_km_free((map), (start), (size)) 601 vaddr_t uvm_km_kmemalloc1(struct vm_map *, struct 602 uvm_object *, vsize_t, vsize_t, voff_t, int); 603 vaddr_t uvm_km_kmemalloc(struct vm_map *, struct 604 uvm_object *, vsize_t, int); 605 struct vm_map *uvm_km_suballoc(struct vm_map *, vaddr_t *, 606 vaddr_t *, vsize_t, int, boolean_t, 607 struct vm_map_kernel *); 608 vaddr_t uvm_km_valloc1(struct vm_map *, vsize_t, 609 vsize_t, voff_t, uvm_flag_t); 610 vaddr_t uvm_km_valloc(struct vm_map *, vsize_t); 611 vaddr_t uvm_km_valloc_align(struct vm_map *, vsize_t, 612 vsize_t); 613 vaddr_t uvm_km_valloc_wait(struct vm_map *, vsize_t); 614 vaddr_t uvm_km_valloc_prefer_wait(struct vm_map *, vsize_t, 615 voff_t); 616 vaddr_t uvm_km_alloc_poolpage1(struct vm_map *, 617 struct uvm_object *, boolean_t); 618 void uvm_km_free_poolpage1(struct vm_map *, vaddr_t); 619 vaddr_t uvm_km_alloc_poolpage_cache(struct vm_map *, 620 struct uvm_object *, boolean_t); 621 void uvm_km_free_poolpage_cache(struct vm_map *, vaddr_t); 622 void uvm_km_vacache_init(struct vm_map *, 623 const char *, size_t); 624 625 extern __inline__ vaddr_t 626 uvm_km_kmemalloc(struct vm_map *map, struct uvm_object *obj, vsize_t sz, int flags) 627 { 628 return uvm_km_kmemalloc1(map, obj, sz, 0, UVM_UNKNOWN_OFFSET, flags); 629 } 630 631 extern __inline__ vaddr_t 632 uvm_km_valloc(struct vm_map *map, vsize_t sz) 633 { 634 return uvm_km_valloc1(map, sz, 0, UVM_UNKNOWN_OFFSET, UVM_KMF_NOWAIT); 635 } 636 637 extern __inline__ vaddr_t 638 uvm_km_valloc_align(struct vm_map *map, vsize_t sz, vsize_t align) 639 { 640 return uvm_km_valloc1(map, sz, align, UVM_UNKNOWN_OFFSET, UVM_KMF_NOWAIT); 641 } 642 643 extern __inline__ vaddr_t 644 uvm_km_valloc_prefer_wait(struct vm_map *map, vsize_t sz, voff_t prefer) 645 { 646 return uvm_km_valloc1(map, sz, 0, prefer, 0); 647 } 648 649 extern __inline__ vaddr_t 650 uvm_km_valloc_wait(struct vm_map *map, vsize_t sz) 651 { 652 return uvm_km_valloc1(map, sz, 0, UVM_UNKNOWN_OFFSET, 0); 653 } 654 655 #define uvm_km_alloc_poolpage(waitok) \ 656 uvm_km_alloc_poolpage1(kmem_map, NULL, (waitok)) 657 #define uvm_km_free_poolpage(addr) \ 658 uvm_km_free_poolpage1(kmem_map, (addr)) 659 660 /* uvm_map.c */ 661 int uvm_map(struct vm_map *, vaddr_t *, vsize_t, 662 struct uvm_object *, voff_t, vsize_t, 663 uvm_flag_t); 664 int uvm_map_pageable(struct vm_map *, vaddr_t, 665 vaddr_t, boolean_t, int); 666 int uvm_map_pageable_all(struct vm_map *, int, vsize_t); 667 boolean_t uvm_map_checkprot(struct vm_map *, vaddr_t, 668 vaddr_t, vm_prot_t); 669 int uvm_map_protect(struct vm_map *, vaddr_t, 670 vaddr_t, vm_prot_t, boolean_t); 671 struct vmspace *uvmspace_alloc(vaddr_t, vaddr_t); 672 void uvmspace_init(struct vmspace *, struct pmap *, 673 vaddr_t, vaddr_t); 674 void uvmspace_exec(struct lwp *, vaddr_t, vaddr_t); 675 struct vmspace *uvmspace_fork(struct vmspace *); 676 void uvmspace_free(struct vmspace *); 677 void uvmspace_share(struct proc *, struct proc *); 678 void uvmspace_unshare(struct lwp *); 679 680 681 /* uvm_meter.c */ 682 void uvm_meter(void); 683 int uvm_sysctl(int *, u_int, void *, size_t *, 684 void *, size_t, struct proc *); 685 686 /* uvm_mmap.c */ 687 int uvm_mmap(struct vm_map *, vaddr_t *, vsize_t, 688 vm_prot_t, vm_prot_t, int, 689 void *, voff_t, vsize_t); 690 691 /* uvm_page.c */ 692 struct vm_page *uvm_pagealloc_strat(struct uvm_object *, 693 voff_t, struct vm_anon *, int, int, int); 694 #define uvm_pagealloc(obj, off, anon, flags) \ 695 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 696 UVM_PGA_STRAT_NORMAL, 0) 697 void uvm_pagereplace(struct vm_page *, 698 struct vm_page *); 699 void uvm_pagerealloc(struct vm_page *, 700 struct uvm_object *, voff_t); 701 /* Actually, uvm_page_physload takes PF#s which need their own type */ 702 void uvm_page_physload(paddr_t, paddr_t, paddr_t, 703 paddr_t, int); 704 void uvm_setpagesize(void); 705 706 /* uvm_pager.c */ 707 void uvm_aio_biodone1(struct buf *); 708 void uvm_aio_biodone(struct buf *); 709 void uvm_aio_aiodone(struct buf *); 710 711 /* uvm_pdaemon.c */ 712 void uvm_pageout(void *); 713 void uvm_aiodone_daemon(void *); 714 715 /* uvm_pglist.c */ 716 int uvm_pglistalloc(psize_t, paddr_t, paddr_t, 717 paddr_t, paddr_t, struct pglist *, int, int); 718 void uvm_pglistfree(struct pglist *); 719 720 /* uvm_swap.c */ 721 void uvm_swap_init(void); 722 723 /* uvm_unix.c */ 724 int uvm_grow(struct proc *, vaddr_t); 725 726 /* uvm_user.c */ 727 void uvm_deallocate(struct vm_map *, vaddr_t, vsize_t); 728 729 /* uvm_vnode.c */ 730 void uvm_vnp_setsize(struct vnode *, voff_t); 731 void uvm_vnp_sync(struct mount *); 732 struct uvm_object *uvn_attach(void *, vm_prot_t); 733 int uvn_findpages(struct uvm_object *, voff_t, 734 int *, struct vm_page **, int); 735 void uvm_vnp_zerorange(struct vnode *, off_t, size_t); 736 737 /* kern_malloc.c */ 738 void kmeminit_nkmempages(void); 739 void kmeminit(void); 740 extern int nkmempages; 741 742 #endif /* _KERNEL */ 743 744 #endif /* _UVM_UVM_EXTERN_H_ */ 745
Indexes created Sat Sep 20 22:09:52 GMT 2025