1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
|
/* $OpenBSD: uvm_extern.h,v 1.50 2003/08/10 00:04:50 miod Exp $ */
/* $NetBSD: uvm_extern.h,v 1.57 2001/03/09 01:02:12 chs Exp $ */
/*
*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Charles D. Cranor and
* Washington University.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* from: Id: uvm_extern.h,v 1.1.2.21 1998/02/07 01:16:53 chs Exp
*/
/*-
* Copyright (c) 1991, 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)vm_extern.h 8.5 (Berkeley) 5/3/95
*/
#ifndef _UVM_UVM_EXTERN_H_
#define _UVM_UVM_EXTERN_H_
/*
* uvm_extern.h: this file defines the external interface to the VM system.
*
* this should be the only file included by non-VM parts of the kernel
* which need access to VM services. if you want to know the interface
* to the MI VM layer without knowing the details, this is the file to
* learn.
*
* NOTE: vm system calls are prototyped in syscallargs.h
*/
/*
* typedefs, necessary for standard UVM headers.
*/
typedef unsigned int uvm_flag_t;
typedef int vm_fault_t;
typedef int vm_inherit_t; /* XXX: inheritance codes */
typedef off_t voff_t; /* XXX: offset within a uvm_object */
union vm_map_object;
typedef union vm_map_object vm_map_object_t;
struct vm_map_entry;
typedef struct vm_map_entry *vm_map_entry_t;
struct vm_map;
typedef struct vm_map *vm_map_t;
struct vm_page;
typedef struct vm_page *vm_page_t;
/*
* defines
*/
/*
* the following defines are for uvm_map and functions which call it.
*/
/* protections bits */
#define UVM_PROT_MASK 0x07 /* protection mask */
#define UVM_PROT_NONE 0x00 /* protection none */
#define UVM_PROT_ALL 0x07 /* everything */
#define UVM_PROT_READ 0x01 /* read */
#define UVM_PROT_WRITE 0x02 /* write */
#define UVM_PROT_EXEC 0x04 /* exec */
/* protection short codes */
#define UVM_PROT_R 0x01 /* read */
#define UVM_PROT_W 0x02 /* write */
#define UVM_PROT_RW 0x03 /* read-write */
#define UVM_PROT_X 0x04 /* exec */
#define UVM_PROT_RX 0x05 /* read-exec */
#define UVM_PROT_WX 0x06 /* write-exec */
#define UVM_PROT_RWX 0x07 /* read-write-exec */
/* 0x08: not used */
/* inherit codes */
#define UVM_INH_MASK 0x30 /* inherit mask */
#define UVM_INH_SHARE 0x00 /* "share" */
#define UVM_INH_COPY 0x10 /* "copy" */
#define UVM_INH_NONE 0x20 /* "none" */
#define UVM_INH_DONATE 0x30 /* "donate" << not used */
/* 0x40, 0x80: not used */
/* bits 0x700: max protection, 0x800: not used */
/* bits 0x7000: advice, 0x8000: not used */
typedef int vm_prot_t;
/*
* Protection values, defined as bits within the vm_prot_t type
*
* These are funky definitions from old CMU VM and are kept
* for compatibility reasons, one day they are going to die,
* just like everybody else.
*/
#define VM_PROT_NONE ((vm_prot_t) 0x00)
#define VM_PROT_READ ((vm_prot_t) 0x01) /* read permission */
#define VM_PROT_WRITE ((vm_prot_t) 0x02) /* write permission */
#define VM_PROT_EXECUTE ((vm_prot_t) 0x04) /* execute permission */
/*
* The default protection for newly-created virtual memory
*/
#define VM_PROT_DEFAULT (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE)
/*
* The maximum privileges possible, for parameter checking.
*/
#define VM_PROT_ALL (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE)
/* advice: matches MADV_* from sys/mman.h */
#define UVM_ADV_NORMAL 0x0 /* 'normal' */
#define UVM_ADV_RANDOM 0x1 /* 'random' */
#define UVM_ADV_SEQUENTIAL 0x2 /* 'sequential' */
/* 0x3: will need, 0x4: dontneed */
#define UVM_ADV_MASK 0x7 /* mask */
/* mapping flags */
#define UVM_FLAG_FIXED 0x010000 /* find space */
#define UVM_FLAG_OVERLAY 0x020000 /* establish overlay */
#define UVM_FLAG_NOMERGE 0x040000 /* don't merge map entries */
#define UVM_FLAG_COPYONW 0x080000 /* set copy_on_write flag */
#define UVM_FLAG_AMAPPAD 0x100000 /* for bss: pad amap to reduce malloc() */
#define UVM_FLAG_TRYLOCK 0x200000 /* fail if we can not lock map */
/* macros to extract info */
#define UVM_PROTECTION(X) ((X) & UVM_PROT_MASK)
#define UVM_INHERIT(X) (((X) & UVM_INH_MASK) >> 4)
#define UVM_MAXPROTECTION(X) (((X) >> 8) & UVM_PROT_MASK)
#define UVM_ADVICE(X) (((X) >> 12) & UVM_ADV_MASK)
#define UVM_MAPFLAG(PROT,MAXPROT,INH,ADVICE,FLAGS) \
((MAXPROT << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS))
/* magic offset value */
#define UVM_UNKNOWN_OFFSET ((voff_t) -1)
/* offset not known(obj) or don't care(!obj) */
/*
* the following defines are for uvm_km_kmemalloc's flags
*/
#define UVM_KMF_NOWAIT 0x1 /* matches M_NOWAIT */
#define UVM_KMF_VALLOC 0x2 /* allocate VA only */
#define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */
/*
* the following defines the strategies for uvm_pagealloc_strat()
*/
#define UVM_PGA_STRAT_NORMAL 0 /* high -> low free list walk */
#define UVM_PGA_STRAT_ONLY 1 /* only specified free list */
#define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */
/*
* flags for uvm_pagealloc_strat()
*/
#define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */
#define UVM_PGA_ZERO 0x0002 /* returned page must be zeroed */
/*
* lockflags that control the locking behavior of various functions.
*/
#define UVM_LK_ENTER 0x00000001 /* map locked on entry */
#define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */
/*
* structures
*/
struct buf;
struct core;
struct mount;
struct pglist;
struct proc;
struct ucred;
struct uio;
struct uvm_object;
struct vm_anon;
struct vm_aref;
struct vm_map;
struct vmspace;
struct pmap;
struct vnode;
struct pool;
struct simplelock;
extern struct pool *uvm_aiobuf_pool;
/*
* uvmexp: global data structures that are exported to parts of the kernel
* other than the vm system.
*/
struct uvmexp {
/* vm_page constants */
int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */
int pagemask; /* page mask */
int pageshift; /* page shift */
/* vm_page counters */
int npages; /* number of pages we manage */
int free; /* number of free pages */
int active; /* number of active pages */
int inactive; /* number of pages that we free'd but may want back */
int paging; /* number of pages in the process of being paged out */
int wired; /* number of wired pages */
int zeropages; /* number of zero'd pages */
int reserve_pagedaemon; /* number of pages reserved for pagedaemon */
int reserve_kernel; /* number of pages reserved for kernel */
int anonpages; /* number of pages used by anon pagers */
int vnodepages; /* number of pages used by vnode page cache */
int vtextpages; /* number of pages used by vtext vnodes */
/* pageout params */
int freemin; /* min number of free pages */
int freetarg; /* target number of free pages */
int inactarg; /* target number of inactive pages */
int wiredmax; /* max number of wired pages */
int anonmin; /* min threshold for anon pages */
int vtextmin; /* min threshold for vtext pages */
int vnodemin; /* min threshold for vnode pages */
int anonminpct; /* min percent anon pages */
int vtextminpct;/* min percent vtext pages */
int vnodeminpct;/* min percent vnode pages */
/* swap */
int nswapdev; /* number of configured swap devices in system */
int swpages; /* number of PAGE_SIZE'ed swap pages */
int swpginuse; /* number of swap pages in use */
int swpgonly; /* number of swap pages in use, not also in RAM */
int nswget; /* number of times fault calls uvm_swap_get() */
int nanon; /* number total of anon's in system */
int nanonneeded;/* number of anons currently needed */
int nfreeanon; /* number of free anon's */
/* stat counters */
int faults; /* page fault count */
int traps; /* trap count */
int intrs; /* interrupt count */
int swtch; /* context switch count */
int softs; /* software interrupt count */
int syscalls; /* system calls */
int pageins; /* pagein operation count */
/* pageouts are in pdpageouts below */
int swapins; /* swapins */
int swapouts; /* swapouts */
int pgswapin; /* pages swapped in */
int pgswapout; /* pages swapped out */
int forks; /* forks */
int forks_ppwait; /* forks where parent waits */
int forks_sharevm; /* forks where vmspace is shared */
int pga_zerohit; /* pagealloc where zero wanted and zero
was available */
int pga_zeromiss; /* pagealloc where zero wanted and zero
not available */
int zeroaborts; /* number of times page zeroing was
aborted */
/* fault subcounters */
int fltnoram; /* number of times fault was out of ram */
int fltnoanon; /* number of times fault was out of anons */
int fltpgwait; /* number of times fault had to wait on a page */
int fltpgrele; /* number of times fault found a released page */
int fltrelck; /* number of times fault relock called */
int fltrelckok; /* number of times fault relock is a success */
int fltanget; /* number of times fault gets anon page */
int fltanretry; /* number of times fault retrys an anon get */
int fltamcopy; /* number of times fault clears "needs copy" */
int fltnamap; /* number of times fault maps a neighbor anon page */
int fltnomap; /* number of times fault maps a neighbor obj page */
int fltlget; /* number of times fault does a locked pgo_get */
int fltget; /* number of times fault does an unlocked get */
int flt_anon; /* number of times fault anon (case 1a) */
int flt_acow; /* number of times fault anon cow (case 1b) */
int flt_obj; /* number of times fault is on object page (2a) */
int flt_prcopy; /* number of times fault promotes with copy (2b) */
int flt_przero; /* number of times fault promotes with zerofill (2b) */
/* daemon counters */
int pdwoke; /* number of times daemon woke up */
int pdrevs; /* number of times daemon rev'd clock hand */
int pdswout; /* number of times daemon called for swapout */
int pdfreed; /* number of pages daemon freed since boot */
int pdscans; /* number of pages daemon scanned since boot */
int pdanscan; /* number of anonymous pages scanned by daemon */
int pdobscan; /* number of object pages scanned by daemon */
int pdreact; /* number of pages daemon reactivated since boot */
int pdbusy; /* number of times daemon found a busy page */
int pdpageouts; /* number of times daemon started a pageout */
int pdpending; /* number of times daemon got a pending pagout */
int pddeact; /* number of pages daemon deactivates */
int pdreanon; /* anon pages reactivated due to min threshold */
int pdrevnode; /* vnode pages reactivated due to min threshold */
int pdrevtext; /* vtext pages reactivated due to min threshold */
/* kernel memory objects: managed by uvm_km_kmemalloc() only! */
struct uvm_object *kmem_object;
struct uvm_object *mb_object;
};
#ifdef _KERNEL
extern struct uvmexp uvmexp;
#endif
/*
* Finally, bring in standard UVM headers.
*/
#include <sys/vmmeter.h>
#include <sys/queue.h>
#include <sys/tree.h>
#include <uvm/uvm_param.h>
#include <sys/lock.h>
#include <uvm/uvm_page.h>
#include <uvm/uvm_pmap.h>
#include <uvm/uvm_map.h>
#include <uvm/uvm_fault.h>
#include <uvm/uvm_pager.h>
/*
* Shareable process virtual address space.
* May eventually be merged with vm_map.
* Several fields are temporary (text, data stuff).
*/
struct vmspace {
struct vm_map vm_map; /* VM address map */
int vm_refcnt; /* number of references */
caddr_t vm_shm; /* SYS5 shared memory private data XXX */
/* we copy from vm_startcopy to the end of the structure on fork */
#define vm_startcopy vm_rssize
segsz_t vm_rssize; /* current resident set size in pages */
segsz_t vm_swrss; /* resident set size before last swap */
segsz_t vm_tsize; /* text size (pages) XXX */
segsz_t vm_dsize; /* data size (pages) XXX */
segsz_t vm_ssize; /* stack size (pages) */
caddr_t vm_taddr; /* user virtual address of text XXX */
caddr_t vm_daddr; /* user virtual address of data XXX */
caddr_t vm_maxsaddr; /* user VA at max stack growth */
caddr_t vm_minsaddr; /* user VA at top of stack */
};
#ifdef _KERNEL
/*
* the various kernel maps, owned by MD code
*/
extern struct vm_map *exec_map;
extern struct vm_map *kernel_map;
extern struct vm_map *kmem_map;
extern struct vm_map *mb_map;
extern struct vm_map *phys_map;
/*
* macros
*/
/* zalloc zeros memory, alloc does not */
#define uvm_km_zalloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,TRUE)
#define uvm_km_alloc(MAP,SIZE) uvm_km_alloc1(MAP,SIZE,FALSE)
#endif /* _KERNEL */
#ifdef pmap_resident_count
#define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap))
#else
#define vm_resident_count(vm) ((vm)->vm_rssize)
#endif
/* XXX clean up later */
struct buf;
struct loadavg;
struct proc;
struct pmap;
struct vmspace;
struct vmtotal;
struct mount;
struct vnode;
struct core;
#ifdef _KERNEL
/* vm_machdep.c */
void vmapbuf(struct buf *, vsize_t);
void vunmapbuf(struct buf *, vsize_t);
void pagemove(caddr_t, caddr_t, size_t);
#ifndef cpu_swapin
void cpu_swapin(struct proc *);
#endif
#ifndef cpu_swapout
void cpu_swapout(struct proc *);
#endif
void cpu_fork(struct proc *, struct proc *, void *, size_t,
void (*)(void *), void *);
/* uvm_aobj.c */
struct uvm_object *uao_create(vsize_t, int);
void uao_detach(struct uvm_object *);
void uao_detach_locked(struct uvm_object *);
void uao_reference(struct uvm_object *);
void uao_reference_locked(struct uvm_object *);
/* uvm_fault.c */
int uvm_fault(vm_map_t, vaddr_t,
vm_fault_t, vm_prot_t);
/* handle a page fault */
/* uvm_glue.c */
#if defined(KGDB)
void uvm_chgkprot(caddr_t, size_t, int);
#endif
void uvm_fork(struct proc *, struct proc *, boolean_t,
void *, size_t, void (*)(void *), void *);
void uvm_exit(struct proc *);
void uvm_init_limits(struct proc *);
boolean_t uvm_kernacc(caddr_t, size_t, int);
__dead void uvm_scheduler(void);
void uvm_swapin(struct proc *);
int uvm_vslock(struct proc *, caddr_t, size_t,
vm_prot_t);
void uvm_vsunlock(struct proc *, caddr_t, size_t);
/* uvm_init.c */
void uvm_init(void);
/* init the uvm system */
/* uvm_io.c */
int uvm_io(vm_map_t, struct uio *);
/* uvm_km.c */
vaddr_t uvm_km_alloc1(vm_map_t, vsize_t, boolean_t);
void uvm_km_free(vm_map_t, vaddr_t, vsize_t);
void uvm_km_free_wakeup(vm_map_t, vaddr_t,
vsize_t);
vaddr_t uvm_km_kmemalloc(vm_map_t, struct uvm_object *,
vsize_t, int);
struct vm_map *uvm_km_suballoc(vm_map_t, vaddr_t *,
vaddr_t *, vsize_t, int,
boolean_t, vm_map_t);
vaddr_t uvm_km_valloc(vm_map_t, vsize_t);
vaddr_t uvm_km_valloc_align(vm_map_t, vsize_t, vsize_t);
vaddr_t uvm_km_valloc_wait(vm_map_t, vsize_t);
vaddr_t uvm_km_valloc_prefer_wait(vm_map_t, vsize_t,
voff_t);
vaddr_t uvm_km_alloc_poolpage1(vm_map_t,
struct uvm_object *, boolean_t);
void uvm_km_free_poolpage1(vm_map_t, vaddr_t);
#define uvm_km_alloc_poolpage(waitok) uvm_km_alloc_poolpage1(kmem_map, \
uvmexp.kmem_object, (waitok))
#define uvm_km_free_poolpage(addr) uvm_km_free_poolpage1(kmem_map, (addr))
/* uvm_map.c */
int uvm_map(vm_map_t, vaddr_t *, vsize_t,
struct uvm_object *, voff_t, vsize_t,
uvm_flag_t);
int uvm_map_pageable(vm_map_t, vaddr_t,
vaddr_t, boolean_t, int);
int uvm_map_pageable_all(vm_map_t, int, vsize_t);
boolean_t uvm_map_checkprot(vm_map_t, vaddr_t,
vaddr_t, vm_prot_t);
int uvm_map_protect(vm_map_t, vaddr_t,
vaddr_t, vm_prot_t, boolean_t);
struct vmspace *uvmspace_alloc(vaddr_t, vaddr_t,
boolean_t);
void uvmspace_init(struct vmspace *, struct pmap *,
vaddr_t, vaddr_t, boolean_t);
void uvmspace_exec(struct proc *, vaddr_t, vaddr_t);
struct vmspace *uvmspace_fork(struct vmspace *);
void uvmspace_free(struct vmspace *);
void uvmspace_share(struct proc *, struct proc *);
void uvmspace_unshare(struct proc *);
/* uvm_meter.c */
void uvm_meter(void);
int uvm_sysctl(int *, u_int, void *, size_t *,
void *, size_t, struct proc *);
void uvm_total(struct vmtotal *);
/* uvm_mmap.c */
int uvm_mmap(vm_map_t, vaddr_t *, vsize_t,
vm_prot_t, vm_prot_t, int,
caddr_t, voff_t, vsize_t);
/* uvm_page.c */
struct vm_page *uvm_pagealloc_strat(struct uvm_object *,
voff_t, struct vm_anon *, int, int, int);
#define uvm_pagealloc(obj, off, anon, flags) \
uvm_pagealloc_strat((obj), (off), (anon), (flags), \
UVM_PGA_STRAT_NORMAL, 0)
vaddr_t uvm_pagealloc_contig(vaddr_t, vaddr_t,
vaddr_t, vaddr_t);
void uvm_pagerealloc(struct vm_page *,
struct uvm_object *, voff_t);
/* Actually, uvm_page_physload takes PF#s which need their own type */
void uvm_page_physload(paddr_t, paddr_t,
paddr_t, paddr_t, int);
void uvm_setpagesize(void);
/* uvm_pager.c */
void uvm_aio_biodone1(struct buf *);
void uvm_aio_biodone(struct buf *);
void uvm_aio_aiodone(struct buf *);
/* uvm_pdaemon.c */
void uvm_pageout(void *);
void uvm_aiodone_daemon(void *);
/* uvm_pglist.c */
int uvm_pglistalloc(psize_t, paddr_t,
paddr_t, paddr_t, paddr_t,
struct pglist *, int, int);
void uvm_pglistfree(struct pglist *);
/* uvm_swap.c */
void uvm_swap_init(void);
/* uvm_unix.c */
int uvm_coredump(struct proc *, struct vnode *,
struct ucred *, struct core *);
int uvm_grow(struct proc *, vaddr_t);
/* uvm_user.c */
void uvm_deallocate(vm_map_t, vaddr_t, vsize_t);
/* uvm_vnode.c */
void uvm_vnp_setsize(struct vnode *, voff_t);
void uvm_vnp_sync(struct mount *);
void uvm_vnp_terminate(struct vnode *);
/* terminate a uvm/uvn object */
boolean_t uvm_vnp_uncache(struct vnode *);
struct uvm_object *uvn_attach(void *, vm_prot_t);
/* kern_malloc.c */
void kmeminit_nkmempages(void);
void kmeminit(void);
extern int nkmempages;
#endif /* _KERNEL */
#endif /* _UVM_UVM_EXTERN_H_ */
|