uvm_extern.h revision 1.100
1/* $NetBSD: uvm_extern.h,v 1.100 2005/04/01 11:59:38 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 86typedef unsigned int uvm_flag_t; 87typedef int vm_fault_t; 88 89typedef int vm_inherit_t; /* XXX: inheritance codes */ 90typedef 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#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 230struct buf; 231struct core; 232struct loadavg; 233struct mount; 234struct pglist; 235struct proc; 236struct ucred; 237struct uio; 238struct uvm_object; 239struct vm_anon; 240struct vmspace; 241struct pmap; 242struct vnode; 243struct pool; 244struct simplelock; 245struct vm_map_entry; 246struct vm_map; 247struct vm_page; 248struct vmspace; 249struct vmtotal; 250 251/* 252 * uvmexp: global data structures that are exported to parts of the kernel 253 * other than the vm system. 254 */ 255 256struct uvmexp { 257 /* vm_page constants */ 258 int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */ 259 int pagemask; /* page mask */ 260 int pageshift; /* page shift */ 261 262 /* vm_page counters */ 263 int npages; /* number of pages we manage */ 264 int free; /* number of free pages */ 265 int active; /* number of active pages */ 266 int inactive; /* number of pages that we free'd but may want back */ 267 int paging; /* number of pages in the process of being paged out */ 268 int wired; /* number of wired pages */ 269 270 /* 271 * Adding anything before this line will break binary compatibility 272 * with top(1) on NetBSD 1.5. 273 */ 274 275 int ncolors; /* number of page color buckets: must be p-o-2 */ 276 int colormask; /* color bucket mask */ 277 278 int zeropages; /* number of zero'd pages */ 279 int reserve_pagedaemon; /* number of pages reserved for pagedaemon */ 280 int reserve_kernel; /* number of pages reserved for kernel */ 281 int anonpages; /* number of pages used by anon mappings */ 282 int filepages; /* number of pages used by cached file data */ 283 int execpages; /* number of pages used by cached exec data */ 284 285 /* pageout params */ 286 int freemin; /* min number of free pages */ 287 int freetarg; /* target number of free pages */ 288 int inactarg; /* target number of inactive pages */ 289 int wiredmax; /* max number of wired pages */ 290 int anonmin; /* min threshold for anon pages */ 291 int execmin; /* min threshold for executable pages */ 292 int filemin; /* min threshold for file pages */ 293 int anonminpct; /* min percent anon pages */ 294 int execminpct; /* min percent executable pages */ 295 int fileminpct; /* min percent file pages */ 296 int anonmax; /* max threshold for anon pages */ 297 int execmax; /* max threshold for executable pages */ 298 int filemax; /* max threshold for file pages */ 299 int anonmaxpct; /* max percent anon pages */ 300 int execmaxpct; /* max percent executable pages */ 301 int filemaxpct; /* max percent file pages */ 302 303 /* swap */ 304 int nswapdev; /* number of configured swap devices in system */ 305 int swpages; /* number of PAGE_SIZE'ed swap pages */ 306 int swpgavail; /* number of swap pages currently available */ 307 int swpginuse; /* number of swap pages in use */ 308 int swpgonly; /* number of swap pages in use, not also in RAM */ 309 int nswget; /* number of times fault calls uvm_swap_get() */ 310 int nanon; /* number total of anon's in system */ 311 int nanonneeded;/* number of anons currently needed */ 312 int nfreeanon; /* number of free anon's */ 313 314 /* stat counters */ 315 int faults; /* page fault count */ 316 int traps; /* trap count */ 317 int intrs; /* interrupt count */ 318 int swtch; /* context switch count */ 319 int softs; /* software interrupt count */ 320 int syscalls; /* system calls */ 321 int pageins; /* pagein operation count */ 322 /* pageouts are in pdpageouts below */ 323 int swapins; /* swapins */ 324 int swapouts; /* swapouts */ 325 int pgswapin; /* pages swapped in */ 326 int pgswapout; /* pages swapped out */ 327 int forks; /* forks */ 328 int forks_ppwait; /* forks where parent waits */ 329 int forks_sharevm; /* forks where vmspace is shared */ 330 int pga_zerohit; /* pagealloc where zero wanted and zero 331 was available */ 332 int pga_zeromiss; /* pagealloc where zero wanted and zero 333 not available */ 334 int zeroaborts; /* number of times page zeroing was 335 aborted */ 336 int colorhit; /* pagealloc where we got optimal color */ 337 int colormiss; /* pagealloc where we didn't */ 338 339 /* fault subcounters */ 340 int fltnoram; /* number of times fault was out of ram */ 341 int fltnoanon; /* number of times fault was out of anons */ 342 int fltpgwait; /* number of times fault had to wait on a page */ 343 int fltpgrele; /* number of times fault found a released page */ 344 int fltrelck; /* number of times fault relock called */ 345 int fltrelckok; /* number of times fault relock is a success */ 346 int fltanget; /* number of times fault gets anon page */ 347 int fltanretry; /* number of times fault retrys an anon get */ 348 int fltamcopy; /* number of times fault clears "needs copy" */ 349 int fltnamap; /* number of times fault maps a neighbor anon page */ 350 int fltnomap; /* number of times fault maps a neighbor obj page */ 351 int fltlget; /* number of times fault does a locked pgo_get */ 352 int fltget; /* number of times fault does an unlocked get */ 353 int flt_anon; /* number of times fault anon (case 1a) */ 354 int flt_acow; /* number of times fault anon cow (case 1b) */ 355 int flt_obj; /* number of times fault is on object page (2a) */ 356 int flt_prcopy; /* number of times fault promotes with copy (2b) */ 357 int flt_przero; /* number of times fault promotes with zerofill (2b) */ 358 359 /* daemon counters */ 360 int pdwoke; /* number of times daemon woke up */ 361 int pdrevs; /* number of times daemon rev'd clock hand */ 362 int pdswout; /* number of times daemon called for swapout */ 363 int pdfreed; /* number of pages daemon freed since boot */ 364 int pdscans; /* number of pages daemon scanned since boot */ 365 int pdanscan; /* number of anonymous pages scanned by daemon */ 366 int pdobscan; /* number of object pages scanned by daemon */ 367 int pdreact; /* number of pages daemon reactivated since boot */ 368 int pdbusy; /* number of times daemon found a busy page */ 369 int pdpageouts; /* number of times daemon started a pageout */ 370 int pdpending; /* number of times daemon got a pending pagout */ 371 int pddeact; /* number of pages daemon deactivates */ 372 int pdreanon; /* anon pages reactivated due to thresholds */ 373 int pdrefile; /* file pages reactivated due to thresholds */ 374 int pdreexec; /* executable pages reactivated due to thresholds */ 375}; 376 377/* 378 * The following structure is 64-bit alignment safe. New elements 379 * should only be added to the end of this structure so binary 380 * compatibility can be preserved. 381 */ 382struct uvmexp_sysctl { 383 int64_t pagesize; 384 int64_t pagemask; 385 int64_t pageshift; 386 int64_t npages; 387 int64_t free; 388 int64_t active; 389 int64_t inactive; 390 int64_t paging; 391 int64_t wired; 392 int64_t zeropages; 393 int64_t reserve_pagedaemon; 394 int64_t reserve_kernel; 395 int64_t freemin; 396 int64_t freetarg; 397 int64_t inactarg; 398 int64_t wiredmax; 399 int64_t nswapdev; 400 int64_t swpages; 401 int64_t swpginuse; 402 int64_t swpgonly; 403 int64_t nswget; 404 int64_t nanon; 405 int64_t nanonneeded; 406 int64_t nfreeanon; 407 int64_t faults; 408 int64_t traps; 409 int64_t intrs; 410 int64_t swtch; 411 int64_t softs; 412 int64_t syscalls; 413 int64_t pageins; 414 int64_t swapins; 415 int64_t swapouts; 416 int64_t pgswapin; 417 int64_t pgswapout; 418 int64_t forks; 419 int64_t forks_ppwait; 420 int64_t forks_sharevm; 421 int64_t pga_zerohit; 422 int64_t pga_zeromiss; 423 int64_t zeroaborts; 424 int64_t fltnoram; 425 int64_t fltnoanon; 426 int64_t fltpgwait; 427 int64_t fltpgrele; 428 int64_t fltrelck; 429 int64_t fltrelckok; 430 int64_t fltanget; 431 int64_t fltanretry; 432 int64_t fltamcopy; 433 int64_t fltnamap; 434 int64_t fltnomap; 435 int64_t fltlget; 436 int64_t fltget; 437 int64_t flt_anon; 438 int64_t flt_acow; 439 int64_t flt_obj; 440 int64_t flt_prcopy; 441 int64_t flt_przero; 442 int64_t pdwoke; 443 int64_t pdrevs; 444 int64_t pdswout; 445 int64_t pdfreed; 446 int64_t pdscans; 447 int64_t pdanscan; 448 int64_t pdobscan; 449 int64_t pdreact; 450 int64_t pdbusy; 451 int64_t pdpageouts; 452 int64_t pdpending; 453 int64_t pddeact; 454 int64_t anonpages; 455 int64_t filepages; 456 int64_t execpages; 457 int64_t colorhit; 458 int64_t colormiss; 459 int64_t ncolors; 460}; 461 462#ifdef _KERNEL 463/* we need this before including uvm_page.h on some platforms */ 464extern struct uvmexp uvmexp; 465#endif 466 467/* 468 * Finally, bring in standard UVM headers. 469 */ 470#include <sys/vmmeter.h> 471#include <sys/queue.h> 472#include <uvm/uvm_param.h> 473#include <sys/lock.h> 474#include <uvm/uvm_prot.h> 475#include <uvm/uvm_page.h> 476#include <uvm/uvm_pmap.h> 477#include <uvm/uvm_map.h> 478#include <uvm/uvm_fault.h> 479#include <uvm/uvm_pager.h> 480 481/* 482 * Shareable process virtual address space. 483 * May eventually be merged with vm_map. 484 * Several fields are temporary (text, data stuff). 485 */ 486struct vmspace { 487 struct vm_map vm_map; /* VM address map */ 488 int vm_refcnt; /* number of references * 489 * note: protected by vm_map.ref_lock */ 490 caddr_t vm_shm; /* SYS5 shared memory private data XXX */ 491/* we copy from vm_startcopy to the end of the structure on fork */ 492#define vm_startcopy vm_rssize 493 segsz_t vm_rssize; /* current resident set size in pages */ 494 segsz_t vm_swrss; /* resident set size before last swap */ 495 segsz_t vm_tsize; /* text size (pages) XXX */ 496 segsz_t vm_dsize; /* data size (pages) XXX */ 497 segsz_t vm_ssize; /* stack size (pages) */ 498 caddr_t vm_taddr; /* user virtual address of text XXX */ 499 caddr_t vm_daddr; /* user virtual address of data XXX */ 500 caddr_t vm_maxsaddr; /* user VA at max stack growth */ 501 caddr_t vm_minsaddr; /* user VA at top of stack */ 502}; 503 504#ifdef _KERNEL 505 506extern struct pool *uvm_aiobuf_pool; 507 508/* 509 * used to keep state while iterating over the map for a core dump. 510 */ 511struct uvm_coredump_state { 512 void *cookie; /* opaque for the caller */ 513 vaddr_t start; /* start of region */ 514 vaddr_t end; /* 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#define UVM_COREDUMP_NODUMP 0x02 /* don't actually dump this region */ 521 522/* 523 * the various kernel maps, owned by MD code 524 */ 525extern struct vm_map *exec_map; 526extern struct vm_map *kernel_map; 527extern struct vm_map *kmem_map; 528extern struct vm_map *mb_map; 529extern struct vm_map *phys_map; 530 531/* 532 * macros 533 */ 534 535#define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap)) 536 537#include <sys/mallocvar.h> 538MALLOC_DECLARE(M_VMMAP); 539MALLOC_DECLARE(M_VMPMAP); 540 541/* vm_machdep.c */ 542void vmapbuf(struct buf *, vsize_t); 543void vunmapbuf(struct buf *, vsize_t); 544#ifndef cpu_swapin 545void cpu_swapin(struct lwp *); 546#endif 547#ifndef cpu_swapout 548void cpu_swapout(struct lwp *); 549#endif 550 551/* uvm_aobj.c */ 552struct uvm_object *uao_create(vsize_t, int); 553void uao_detach(struct uvm_object *); 554void uao_detach_locked(struct uvm_object *); 555void uao_reference(struct uvm_object *); 556void uao_reference_locked(struct uvm_object *); 557 558/* uvm_bio.c */ 559void ubc_init(void); 560void * ubc_alloc(struct uvm_object *, voff_t, vsize_t *, int); 561void ubc_release(void *, int); 562void ubc_flush(struct uvm_object *, voff_t, voff_t); 563 564/* uvm_fault.c */ 565int 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) 571void uvm_chgkprot(caddr_t, size_t, int); 572#endif 573void uvm_proc_fork(struct proc *, struct proc *, boolean_t); 574void uvm_lwp_fork(struct lwp *, struct lwp *, 575 void *, size_t, void (*)(void *), void *); 576int uvm_coredump_walkmap(struct proc *, 577 struct vnode *, struct ucred *, 578 int (*)(struct proc *, struct vnode *, 579 struct ucred *, 580 struct uvm_coredump_state *), void *); 581void uvm_proc_exit(struct proc *); 582void uvm_lwp_exit(struct lwp *); 583void uvm_init_limits(struct proc *); 584boolean_t uvm_kernacc(caddr_t, size_t, int); 585__dead void uvm_scheduler(void) __attribute__((noreturn)); 586void uvm_swapin(struct lwp *); 587boolean_t uvm_uarea_alloc(vaddr_t *); 588void uvm_uarea_drain(boolean_t); 589int uvm_vslock(struct proc *, caddr_t, size_t, vm_prot_t); 590void uvm_vsunlock(struct proc *, caddr_t, size_t); 591 592 593/* uvm_init.c */ 594void uvm_init(void); 595 596/* uvm_io.c */ 597int uvm_io(struct vm_map *, struct uio *); 598 599/* uvm_km.c */ 600vaddr_t uvm_km_alloc(struct vm_map *, vsize_t, vsize_t, 601 uvm_flag_t); 602void uvm_km_free(struct vm_map *, vaddr_t, vsize_t, 603 uvm_flag_t); 604 605struct vm_map *uvm_km_suballoc(struct vm_map *, vaddr_t *, 606 vaddr_t *, vsize_t, int, boolean_t, 607 struct vm_map_kernel *); 608vaddr_t uvm_km_alloc_poolpage(struct vm_map *, boolean_t); 609void uvm_km_free_poolpage(struct vm_map *, vaddr_t); 610vaddr_t uvm_km_alloc_poolpage_cache(struct vm_map *, boolean_t); 611void uvm_km_free_poolpage_cache(struct vm_map *, vaddr_t); 612void uvm_km_vacache_init(struct vm_map *, 613 const char *, size_t); 614 615/* uvm_map.c */ 616int uvm_map(struct vm_map *, vaddr_t *, vsize_t, 617 struct uvm_object *, voff_t, vsize_t, 618 uvm_flag_t); 619int uvm_map_pageable(struct vm_map *, vaddr_t, 620 vaddr_t, boolean_t, int); 621int uvm_map_pageable_all(struct vm_map *, int, vsize_t); 622boolean_t uvm_map_checkprot(struct vm_map *, vaddr_t, 623 vaddr_t, vm_prot_t); 624int uvm_map_protect(struct vm_map *, vaddr_t, 625 vaddr_t, vm_prot_t, boolean_t); 626struct vmspace *uvmspace_alloc(vaddr_t, vaddr_t); 627void uvmspace_init(struct vmspace *, struct pmap *, 628 vaddr_t, vaddr_t); 629void uvmspace_exec(struct lwp *, vaddr_t, vaddr_t); 630struct vmspace *uvmspace_fork(struct vmspace *); 631void uvmspace_free(struct vmspace *); 632void uvmspace_share(struct proc *, struct proc *); 633void uvmspace_unshare(struct lwp *); 634 635 636/* uvm_meter.c */ 637void uvm_meter(void); 638int uvm_sysctl(int *, u_int, void *, size_t *, 639 void *, size_t, struct proc *); 640 641/* uvm_mmap.c */ 642int uvm_mmap(struct vm_map *, vaddr_t *, vsize_t, 643 vm_prot_t, vm_prot_t, int, 644 void *, voff_t, vsize_t); 645vaddr_t uvm_default_mapaddr(struct proc *, vaddr_t, vsize_t); 646 647/* uvm_page.c */ 648struct vm_page *uvm_pagealloc_strat(struct uvm_object *, 649 voff_t, struct vm_anon *, int, int, int); 650#define uvm_pagealloc(obj, off, anon, flags) \ 651 uvm_pagealloc_strat((obj), (off), (anon), (flags), \ 652 UVM_PGA_STRAT_NORMAL, 0) 653void uvm_pagereplace(struct vm_page *, 654 struct vm_page *); 655void uvm_pagerealloc(struct vm_page *, 656 struct uvm_object *, voff_t); 657/* Actually, uvm_page_physload takes PF#s which need their own type */ 658void uvm_page_physload(paddr_t, paddr_t, paddr_t, 659 paddr_t, int); 660void uvm_setpagesize(void); 661 662/* uvm_pager.c */ 663void uvm_aio_biodone1(struct buf *); 664void uvm_aio_biodone(struct buf *); 665void uvm_aio_aiodone(struct buf *); 666 667/* uvm_pdaemon.c */ 668void uvm_pageout(void *); 669void uvm_aiodone_daemon(void *); 670 671/* uvm_pglist.c */ 672int uvm_pglistalloc(psize_t, paddr_t, paddr_t, 673 paddr_t, paddr_t, struct pglist *, int, int); 674void uvm_pglistfree(struct pglist *); 675 676/* uvm_swap.c */ 677void uvm_swap_init(void); 678 679/* uvm_unix.c */ 680int uvm_grow(struct proc *, vaddr_t); 681 682/* uvm_user.c */ 683void uvm_deallocate(struct vm_map *, vaddr_t, vsize_t); 684 685/* uvm_vnode.c */ 686void uvm_vnp_setsize(struct vnode *, voff_t); 687void uvm_vnp_sync(struct mount *); 688struct uvm_object *uvn_attach(void *, vm_prot_t); 689int uvn_findpages(struct uvm_object *, voff_t, 690 int *, struct vm_page **, int); 691void uvm_vnp_zerorange(struct vnode *, off_t, size_t); 692 693/* kern_malloc.c */ 694void kmeminit_nkmempages(void); 695void kmeminit(void); 696extern int nkmempages; 697 698#endif /* _KERNEL */ 699 700#endif /* _UVM_UVM_EXTERN_H_ */ 701