uvm_extern.h revision 1.176.2.10 1 1.176.2.10 yamt /* $NetBSD: uvm_extern.h,v 1.176.2.10 2012/10/30 17:23:01 yamt Exp $ */
2 1.1 mrg
3 1.1 mrg /*
4 1.1 mrg * Copyright (c) 1997 Charles D. Cranor and Washington University.
5 1.1 mrg * All rights reserved.
6 1.1 mrg *
7 1.1 mrg * Redistribution and use in source and binary forms, with or without
8 1.1 mrg * modification, are permitted provided that the following conditions
9 1.1 mrg * are met:
10 1.1 mrg * 1. Redistributions of source code must retain the above copyright
11 1.1 mrg * notice, this list of conditions and the following disclaimer.
12 1.1 mrg * 2. Redistributions in binary form must reproduce the above copyright
13 1.1 mrg * notice, this list of conditions and the following disclaimer in the
14 1.1 mrg * documentation and/or other materials provided with the distribution.
15 1.1 mrg *
16 1.1 mrg * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 1.1 mrg * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 1.1 mrg * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 1.1 mrg * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 1.1 mrg * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 1.1 mrg * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 1.1 mrg * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 1.1 mrg * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 1.1 mrg * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 1.1 mrg * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 1.4 mrg *
27 1.4 mrg * from: Id: uvm_extern.h,v 1.1.2.21 1998/02/07 01:16:53 chs Exp
28 1.1 mrg */
29 1.1 mrg
30 1.44 mrg /*-
31 1.45 mrg * Copyright (c) 1991, 1992, 1993
32 1.44 mrg * The Regents of the University of California. All rights reserved.
33 1.44 mrg *
34 1.44 mrg * Redistribution and use in source and binary forms, with or without
35 1.44 mrg * modification, are permitted provided that the following conditions
36 1.44 mrg * are met:
37 1.44 mrg * 1. Redistributions of source code must retain the above copyright
38 1.44 mrg * notice, this list of conditions and the following disclaimer.
39 1.44 mrg * 2. Redistributions in binary form must reproduce the above copyright
40 1.44 mrg * notice, this list of conditions and the following disclaimer in the
41 1.44 mrg * documentation and/or other materials provided with the distribution.
42 1.83 agc * 3. Neither the name of the University nor the names of its contributors
43 1.44 mrg * may be used to endorse or promote products derived from this software
44 1.44 mrg * without specific prior written permission.
45 1.44 mrg *
46 1.44 mrg * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
47 1.44 mrg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48 1.44 mrg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49 1.44 mrg * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
50 1.44 mrg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
51 1.44 mrg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
52 1.44 mrg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53 1.44 mrg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54 1.44 mrg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55 1.44 mrg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56 1.44 mrg * SUCH DAMAGE.
57 1.44 mrg *
58 1.44 mrg * @(#)vm_extern.h 8.5 (Berkeley) 5/3/95
59 1.44 mrg */
60 1.44 mrg
61 1.8 perry #ifndef _UVM_UVM_EXTERN_H_
62 1.8 perry #define _UVM_UVM_EXTERN_H_
63 1.1 mrg
64 1.1 mrg /*
65 1.1 mrg * uvm_extern.h: this file defines the external interface to the VM system.
66 1.1 mrg *
67 1.1 mrg * this should be the only file included by non-VM parts of the kernel
68 1.1 mrg * which need access to VM services. if you want to know the interface
69 1.1 mrg * to the MI VM layer without knowing the details, this is the file to
70 1.1 mrg * learn.
71 1.1 mrg *
72 1.1 mrg * NOTE: vm system calls are prototyped in syscallargs.h
73 1.1 mrg */
74 1.1 mrg
75 1.1 mrg /*
76 1.1 mrg * defines
77 1.1 mrg */
78 1.1 mrg
79 1.1 mrg /*
80 1.1 mrg * the following defines are for uvm_map and functions which call it.
81 1.1 mrg */
82 1.1 mrg
83 1.1 mrg /* protections bits */
84 1.1 mrg #define UVM_PROT_MASK 0x07 /* protection mask */
85 1.1 mrg #define UVM_PROT_NONE 0x00 /* protection none */
86 1.1 mrg #define UVM_PROT_ALL 0x07 /* everything */
87 1.1 mrg #define UVM_PROT_READ 0x01 /* read */
88 1.1 mrg #define UVM_PROT_WRITE 0x02 /* write */
89 1.1 mrg #define UVM_PROT_EXEC 0x04 /* exec */
90 1.1 mrg
91 1.1 mrg /* protection short codes */
92 1.1 mrg #define UVM_PROT_R 0x01 /* read */
93 1.1 mrg #define UVM_PROT_W 0x02 /* write */
94 1.1 mrg #define UVM_PROT_RW 0x03 /* read-write */
95 1.1 mrg #define UVM_PROT_X 0x04 /* exec */
96 1.1 mrg #define UVM_PROT_RX 0x05 /* read-exec */
97 1.1 mrg #define UVM_PROT_WX 0x06 /* write-exec */
98 1.1 mrg #define UVM_PROT_RWX 0x07 /* read-write-exec */
99 1.1 mrg
100 1.1 mrg /* 0x08: not used */
101 1.1 mrg
102 1.1 mrg /* inherit codes */
103 1.1 mrg #define UVM_INH_MASK 0x30 /* inherit mask */
104 1.1 mrg #define UVM_INH_SHARE 0x00 /* "share" */
105 1.1 mrg #define UVM_INH_COPY 0x10 /* "copy" */
106 1.1 mrg #define UVM_INH_NONE 0x20 /* "none" */
107 1.1 mrg #define UVM_INH_DONATE 0x30 /* "donate" << not used */
108 1.1 mrg
109 1.1 mrg /* 0x40, 0x80: not used */
110 1.1 mrg
111 1.1 mrg /* bits 0x700: max protection, 0x800: not used */
112 1.1 mrg
113 1.1 mrg /* bits 0x7000: advice, 0x8000: not used */
114 1.107 yamt /* advice: matches MADV_* from sys/mman.h and POSIX_FADV_* from sys/fcntl.h */
115 1.1 mrg #define UVM_ADV_NORMAL 0x0 /* 'normal' */
116 1.1 mrg #define UVM_ADV_RANDOM 0x1 /* 'random' */
117 1.1 mrg #define UVM_ADV_SEQUENTIAL 0x2 /* 'sequential' */
118 1.156 pooka #define UVM_ADV_WILLNEED 0x3 /* pages will be needed */
119 1.156 pooka #define UVM_ADV_DONTNEED 0x4 /* pages won't be needed */
120 1.156 pooka #define UVM_ADV_NOREUSE 0x5 /* pages will be used only once */
121 1.1 mrg #define UVM_ADV_MASK 0x7 /* mask */
122 1.1 mrg
123 1.98 yamt /* bits 0xffff0000: mapping flags */
124 1.1 mrg #define UVM_FLAG_FIXED 0x010000 /* find space */
125 1.1 mrg #define UVM_FLAG_OVERLAY 0x020000 /* establish overlay */
126 1.1 mrg #define UVM_FLAG_NOMERGE 0x040000 /* don't merge map entries */
127 1.1 mrg #define UVM_FLAG_COPYONW 0x080000 /* set copy_on_write flag */
128 1.172 rmind #define UVM_FLAG_AMAPPAD 0x100000 /* for bss: pad amap to reduce allocations */
129 1.1 mrg #define UVM_FLAG_TRYLOCK 0x200000 /* fail if we can not lock map */
130 1.75 thorpej #define UVM_FLAG_NOWAIT 0x400000 /* not allowed to sleep */
131 1.176.2.9 yamt #define UVM_FLAG_WAITVA 0x800000 /* wait for va */
132 1.100 yamt #define UVM_FLAG_VAONLY 0x2000000 /* unmap: no pages are mapped */
133 1.168 matt #define UVM_FLAG_COLORMATCH 0x4000000 /* match color given in off */
134 1.1 mrg
135 1.1 mrg /* macros to extract info */
136 1.1 mrg #define UVM_PROTECTION(X) ((X) & UVM_PROT_MASK)
137 1.1 mrg #define UVM_INHERIT(X) (((X) & UVM_INH_MASK) >> 4)
138 1.1 mrg #define UVM_MAXPROTECTION(X) (((X) >> 8) & UVM_PROT_MASK)
139 1.1 mrg #define UVM_ADVICE(X) (((X) >> 12) & UVM_ADV_MASK)
140 1.1 mrg
141 1.1 mrg #define UVM_MAPFLAG(PROT,MAXPROT,INH,ADVICE,FLAGS) \
142 1.114 yamt (((MAXPROT) << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS))
143 1.1 mrg
144 1.67 chs /* magic offset value: offset not known(obj) or don't care(!obj) */
145 1.38 kleink #define UVM_UNKNOWN_OFFSET ((voff_t) -1)
146 1.1 mrg
147 1.1 mrg /*
148 1.100 yamt * the following defines are for uvm_km_alloc/free's flags
149 1.1 mrg */
150 1.100 yamt #define UVM_KMF_WIRED 0x1 /* allocation type: wired */
151 1.100 yamt #define UVM_KMF_PAGEABLE 0x2 /* allocation type: pageable */
152 1.100 yamt #define UVM_KMF_VAONLY 0x4 /* allocation type: VA only */
153 1.100 yamt #define UVM_KMF_TYPEMASK (UVM_KMF_VAONLY | UVM_KMF_PAGEABLE | UVM_KMF_WIRED)
154 1.100 yamt #define UVM_KMF_CANFAIL 0x8 /* caller handles failure */
155 1.100 yamt #define UVM_KMF_ZERO 0x10 /* want zero filled memory */
156 1.115 drochner #define UVM_KMF_EXEC 0x20 /* need executable mapping */
157 1.1 mrg #define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */
158 1.75 thorpej #define UVM_KMF_NOWAIT UVM_FLAG_NOWAIT /* not allowed to sleep */
159 1.100 yamt #define UVM_KMF_WAITVA UVM_FLAG_WAITVA /* sleep for va */
160 1.176 matt #define UVM_KMF_COLORMATCH UVM_FLAG_COLORMATCH /* start at color in align */
161 1.1 mrg
162 1.1 mrg /*
163 1.15 thorpej * the following defines the strategies for uvm_pagealloc_strat()
164 1.15 thorpej */
165 1.152 abs #define UVM_PGA_STRAT_NORMAL 0 /* priority (low id to high) walk */
166 1.15 thorpej #define UVM_PGA_STRAT_ONLY 1 /* only specified free list */
167 1.15 thorpej #define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */
168 1.15 thorpej
169 1.15 thorpej /*
170 1.24 chs * flags for uvm_pagealloc_strat()
171 1.24 chs */
172 1.39 thorpej #define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */
173 1.39 thorpej #define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */
174 1.24 chs
175 1.24 chs /*
176 1.97 chs * flags for ubc_alloc()
177 1.53 chs */
178 1.130 yamt #define UBC_READ 0x001
179 1.130 yamt #define UBC_WRITE 0x002
180 1.130 yamt #define UBC_FAULTBUSY 0x004
181 1.53 chs
182 1.53 chs /*
183 1.97 chs * flags for ubc_release()
184 1.97 chs */
185 1.130 yamt #define UBC_UNMAP 0x010
186 1.130 yamt
187 1.130 yamt /*
188 1.130 yamt * flags for ubc_uiomve()
189 1.130 yamt */
190 1.130 yamt #define UBC_PARTIALOK 0x100
191 1.97 chs
192 1.97 chs /*
193 1.53 chs * flags for uvn_findpages().
194 1.53 chs */
195 1.67 chs #define UFP_ALL 0x00
196 1.67 chs #define UFP_NOWAIT 0x01
197 1.67 chs #define UFP_NOALLOC 0x02
198 1.67 chs #define UFP_NOCACHE 0x04
199 1.67 chs #define UFP_NORDONLY 0x08
200 1.67 chs #define UFP_DIRTYONLY 0x10
201 1.67 chs #define UFP_BACKWARD 0x20
202 1.176.2.5 yamt #define UFP_ONLYPAGER1 0x40
203 1.176.2.5 yamt #define UFP_NOPAGER1 0x80
204 1.53 chs
205 1.53 chs /*
206 1.33 thorpej * lockflags that control the locking behavior of various functions.
207 1.33 thorpej */
208 1.33 thorpej #define UVM_LK_ENTER 0x00000001 /* map locked on entry */
209 1.33 thorpej #define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */
210 1.33 thorpej
211 1.33 thorpej /*
212 1.149 christos * Default number of pages to allocate on the stack
213 1.149 christos */
214 1.149 christos #define UBC_MAX_PAGES 8
215 1.149 christos
216 1.149 christos /*
217 1.155 rmind * Value representing inactive emap.
218 1.155 rmind */
219 1.155 rmind #define UVM_EMAP_INACTIVE (0)
220 1.155 rmind
221 1.155 rmind /*
222 1.1 mrg * structures
223 1.1 mrg */
224 1.1 mrg
225 1.97 chs struct buf;
226 1.1 mrg struct core;
227 1.97 chs struct loadavg;
228 1.1 mrg struct mount;
229 1.1 mrg struct pglist;
230 1.1 mrg struct proc;
231 1.1 mrg struct uio;
232 1.1 mrg struct uvm_object;
233 1.1 mrg struct vm_anon;
234 1.1 mrg struct vmspace;
235 1.10 thorpej struct pmap;
236 1.1 mrg struct vnode;
237 1.34 thorpej struct simplelock;
238 1.65 chs struct vm_map_entry;
239 1.65 chs struct vm_map;
240 1.65 chs struct vm_page;
241 1.97 chs struct vmtotal;
242 1.53 chs
243 1.1 mrg /*
244 1.108 yamt * uvm_pctparam: parameter to be shown as percentage to user.
245 1.108 yamt */
246 1.108 yamt
247 1.108 yamt #define UVM_PCTPARAM_SHIFT 8
248 1.108 yamt #define UVM_PCTPARAM_SCALE (1 << UVM_PCTPARAM_SHIFT)
249 1.108 yamt #define UVM_PCTPARAM_APPLY(pct, x) \
250 1.108 yamt (((x) * (pct)->pct_scaled) >> UVM_PCTPARAM_SHIFT)
251 1.108 yamt struct uvm_pctparam {
252 1.118 yamt int pct_pct; /* percent [0, 100] */ /* should be the first member */
253 1.108 yamt int pct_scaled;
254 1.118 yamt int (*pct_check)(struct uvm_pctparam *, int);
255 1.108 yamt };
256 1.108 yamt
257 1.108 yamt /*
258 1.1 mrg * uvmexp: global data structures that are exported to parts of the kernel
259 1.1 mrg * other than the vm system.
260 1.1 mrg */
261 1.1 mrg
262 1.1 mrg struct uvmexp {
263 1.9 mrg /* vm_page constants */
264 1.1 mrg int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */
265 1.1 mrg int pagemask; /* page mask */
266 1.1 mrg int pageshift; /* page shift */
267 1.1 mrg
268 1.9 mrg /* vm_page counters */
269 1.1 mrg int npages; /* number of pages we manage */
270 1.1 mrg int free; /* number of free pages */
271 1.3 chs int paging; /* number of pages in the process of being paged out */
272 1.1 mrg int wired; /* number of wired pages */
273 1.57 chs
274 1.63 chs /*
275 1.57 chs * Adding anything before this line will break binary compatibility
276 1.57 chs * with top(1) on NetBSD 1.5.
277 1.54 simonb */
278 1.57 chs
279 1.67 chs int ncolors; /* number of page color buckets: must be p-o-2 */
280 1.67 chs int colormask; /* color bucket mask */
281 1.67 chs
282 1.55 simonb int zeropages; /* number of zero'd pages */
283 1.3 chs int reserve_pagedaemon; /* number of pages reserved for pagedaemon */
284 1.55 simonb int reserve_kernel; /* number of pages reserved for kernel */
285 1.137 ad unsigned anonpages; /* number of pages used by anon mappings */
286 1.137 ad unsigned filepages; /* number of pages used by cached file data */
287 1.137 ad unsigned execpages; /* number of pages used by cached exec data */
288 1.1 mrg
289 1.9 mrg /* pageout params */
290 1.9 mrg int freemin; /* min number of free pages */
291 1.9 mrg int freetarg; /* target number of free pages */
292 1.9 mrg int wiredmax; /* max number of wired pages */
293 1.1 mrg
294 1.9 mrg /* swap */
295 1.1 mrg int nswapdev; /* number of configured swap devices in system */
296 1.1 mrg int swpages; /* number of PAGE_SIZE'ed swap pages */
297 1.84 pk int swpgavail; /* number of swap pages currently available */
298 1.3 chs int swpginuse; /* number of swap pages in use */
299 1.23 chs int swpgonly; /* number of swap pages in use, not also in RAM */
300 1.1 mrg int nswget; /* number of times fault calls uvm_swap_get() */
301 1.1 mrg
302 1.110 simonb /* stat counters. XXX: should be 64-bit counters */
303 1.167 matt int _unused_faults; /* page fault count */
304 1.167 matt int _unused_traps; /* trap count */
305 1.167 matt int _unused_intrs; /* interrupt count */
306 1.167 matt int _unused_swtch; /* context switch count */
307 1.167 matt int _unused_softs; /* software interrupt count */
308 1.167 matt int _unused_syscalls; /* system calls */
309 1.7 mrg int pageins; /* pagein operation count */
310 1.7 mrg /* pageouts are in pdpageouts below */
311 1.160 rmind int _unused1;
312 1.160 rmind int _unused2;
313 1.7 mrg int pgswapin; /* pages swapped in */
314 1.7 mrg int pgswapout; /* pages swapped out */
315 1.7 mrg int forks; /* forks */
316 1.1 mrg int forks_ppwait; /* forks where parent waits */
317 1.1 mrg int forks_sharevm; /* forks where vmspace is shared */
318 1.40 thorpej int pga_zerohit; /* pagealloc where zero wanted and zero
319 1.40 thorpej was available */
320 1.40 thorpej int pga_zeromiss; /* pagealloc where zero wanted and zero
321 1.40 thorpej not available */
322 1.50 thorpej int zeroaborts; /* number of times page zeroing was
323 1.50 thorpej aborted */
324 1.60 thorpej int colorhit; /* pagealloc where we got optimal color */
325 1.60 thorpej int colormiss; /* pagealloc where we didn't */
326 1.146 ad int cpuhit; /* pagealloc where we allocated locally */
327 1.146 ad int cpumiss; /* pagealloc where we didn't */
328 1.1 mrg
329 1.110 simonb /* fault subcounters. XXX: should be 64-bit counters */
330 1.1 mrg int fltnoram; /* number of times fault was out of ram */
331 1.1 mrg int fltnoanon; /* number of times fault was out of anons */
332 1.1 mrg int fltpgwait; /* number of times fault had to wait on a page */
333 1.1 mrg int fltpgrele; /* number of times fault found a released page */
334 1.1 mrg int fltrelck; /* number of times fault relock called */
335 1.1 mrg int fltrelckok; /* number of times fault relock is a success */
336 1.1 mrg int fltanget; /* number of times fault gets anon page */
337 1.1 mrg int fltanretry; /* number of times fault retrys an anon get */
338 1.1 mrg int fltamcopy; /* number of times fault clears "needs copy" */
339 1.1 mrg int fltnamap; /* number of times fault maps a neighbor anon page */
340 1.1 mrg int fltnomap; /* number of times fault maps a neighbor obj page */
341 1.1 mrg int fltlget; /* number of times fault does a locked pgo_get */
342 1.1 mrg int fltget; /* number of times fault does an unlocked get */
343 1.1 mrg int flt_anon; /* number of times fault anon (case 1a) */
344 1.1 mrg int flt_acow; /* number of times fault anon cow (case 1b) */
345 1.1 mrg int flt_obj; /* number of times fault is on object page (2a) */
346 1.1 mrg int flt_prcopy; /* number of times fault promotes with copy (2b) */
347 1.1 mrg int flt_przero; /* number of times fault promotes with zerofill (2b) */
348 1.1 mrg
349 1.110 simonb /* daemon counters. XXX: should be 64-bit counters */
350 1.1 mrg int pdwoke; /* number of times daemon woke up */
351 1.1 mrg int pdrevs; /* number of times daemon rev'd clock hand */
352 1.160 rmind int _unused3;
353 1.1 mrg int pdfreed; /* number of pages daemon freed since boot */
354 1.78 wiz int pdscans; /* number of pages daemon scanned since boot */
355 1.1 mrg int pdanscan; /* number of anonymous pages scanned by daemon */
356 1.1 mrg int pdobscan; /* number of object pages scanned by daemon */
357 1.1 mrg int pdreact; /* number of pages daemon reactivated since boot */
358 1.1 mrg int pdbusy; /* number of times daemon found a busy page */
359 1.1 mrg int pdpageouts; /* number of times daemon started a pageout */
360 1.1 mrg int pdpending; /* number of times daemon got a pending pagout */
361 1.1 mrg int pddeact; /* number of pages daemon deactivates */
362 1.69 chs int pdreanon; /* anon pages reactivated due to thresholds */
363 1.69 chs int pdrefile; /* file pages reactivated due to thresholds */
364 1.69 chs int pdreexec; /* executable pages reactivated due to thresholds */
365 1.54 simonb };
366 1.54 simonb
367 1.54 simonb /*
368 1.54 simonb * The following structure is 64-bit alignment safe. New elements
369 1.54 simonb * should only be added to the end of this structure so binary
370 1.54 simonb * compatibility can be preserved.
371 1.54 simonb */
372 1.54 simonb struct uvmexp_sysctl {
373 1.54 simonb int64_t pagesize;
374 1.54 simonb int64_t pagemask;
375 1.54 simonb int64_t pageshift;
376 1.54 simonb int64_t npages;
377 1.54 simonb int64_t free;
378 1.54 simonb int64_t active;
379 1.54 simonb int64_t inactive;
380 1.54 simonb int64_t paging;
381 1.54 simonb int64_t wired;
382 1.54 simonb int64_t zeropages;
383 1.54 simonb int64_t reserve_pagedaemon;
384 1.54 simonb int64_t reserve_kernel;
385 1.54 simonb int64_t freemin;
386 1.54 simonb int64_t freetarg;
387 1.160 rmind int64_t inactarg; /* unused */
388 1.54 simonb int64_t wiredmax;
389 1.54 simonb int64_t nswapdev;
390 1.54 simonb int64_t swpages;
391 1.54 simonb int64_t swpginuse;
392 1.54 simonb int64_t swpgonly;
393 1.54 simonb int64_t nswget;
394 1.160 rmind int64_t unused1; /* unused; was nanon */
395 1.146 ad int64_t cpuhit;
396 1.146 ad int64_t cpumiss;
397 1.54 simonb int64_t faults;
398 1.54 simonb int64_t traps;
399 1.54 simonb int64_t intrs;
400 1.54 simonb int64_t swtch;
401 1.54 simonb int64_t softs;
402 1.54 simonb int64_t syscalls;
403 1.54 simonb int64_t pageins;
404 1.160 rmind int64_t swapins; /* unused */
405 1.160 rmind int64_t swapouts; /* unused */
406 1.54 simonb int64_t pgswapin;
407 1.54 simonb int64_t pgswapout;
408 1.54 simonb int64_t forks;
409 1.54 simonb int64_t forks_ppwait;
410 1.54 simonb int64_t forks_sharevm;
411 1.54 simonb int64_t pga_zerohit;
412 1.54 simonb int64_t pga_zeromiss;
413 1.54 simonb int64_t zeroaborts;
414 1.54 simonb int64_t fltnoram;
415 1.54 simonb int64_t fltnoanon;
416 1.54 simonb int64_t fltpgwait;
417 1.54 simonb int64_t fltpgrele;
418 1.54 simonb int64_t fltrelck;
419 1.54 simonb int64_t fltrelckok;
420 1.54 simonb int64_t fltanget;
421 1.54 simonb int64_t fltanretry;
422 1.54 simonb int64_t fltamcopy;
423 1.54 simonb int64_t fltnamap;
424 1.54 simonb int64_t fltnomap;
425 1.54 simonb int64_t fltlget;
426 1.54 simonb int64_t fltget;
427 1.54 simonb int64_t flt_anon;
428 1.54 simonb int64_t flt_acow;
429 1.54 simonb int64_t flt_obj;
430 1.54 simonb int64_t flt_prcopy;
431 1.54 simonb int64_t flt_przero;
432 1.54 simonb int64_t pdwoke;
433 1.54 simonb int64_t pdrevs;
434 1.160 rmind int64_t unused4;
435 1.54 simonb int64_t pdfreed;
436 1.54 simonb int64_t pdscans;
437 1.54 simonb int64_t pdanscan;
438 1.54 simonb int64_t pdobscan;
439 1.54 simonb int64_t pdreact;
440 1.54 simonb int64_t pdbusy;
441 1.54 simonb int64_t pdpageouts;
442 1.54 simonb int64_t pdpending;
443 1.54 simonb int64_t pddeact;
444 1.55 simonb int64_t anonpages;
445 1.69 chs int64_t filepages;
446 1.69 chs int64_t execpages;
447 1.60 thorpej int64_t colorhit;
448 1.60 thorpej int64_t colormiss;
449 1.61 thorpej int64_t ncolors;
450 1.176.2.4 yamt
451 1.176.2.3 yamt int64_t possiblydirtypages;
452 1.176.2.1 yamt int64_t cleanpages;
453 1.176.2.1 yamt int64_t dirtypages;
454 1.176.2.3 yamt int64_t possiblydirtyanonpages;
455 1.176.2.2 yamt int64_t cleananonpages;
456 1.176.2.2 yamt int64_t dirtyanonpages;
457 1.176.2.4 yamt
458 1.176.2.4 yamt int64_t loan_obj; /* O->K loan */
459 1.176.2.4 yamt int64_t unloan_obj; /* O->K unloan */
460 1.176.2.6 yamt int64_t loanbreak_obj; /* O->K loan resolved on write to O */
461 1.176.2.6 yamt int64_t loanfree_obj; /* O->K loan resolved on free of O */
462 1.176.2.4 yamt
463 1.176.2.4 yamt int64_t loan_anon; /* A->K loan */
464 1.176.2.4 yamt int64_t unloan_anon; /* A->K unloan */
465 1.176.2.6 yamt int64_t loanbreak_anon; /* A->K loan resolved on write to A */
466 1.176.2.6 yamt int64_t loanfree_anon; /* A->K loan resolved on free of A */
467 1.176.2.6 yamt
468 1.176.2.6 yamt int64_t loan_oa; /* O->A->K loan */
469 1.176.2.6 yamt int64_t unloan_oa; /* O->A->K unloan */
470 1.176.2.4 yamt
471 1.176.2.4 yamt int64_t loan_zero; /* O->K loan (zero) */
472 1.176.2.4 yamt int64_t unloan_zero; /* O->K unloan (zero) */
473 1.176.2.6 yamt
474 1.176.2.6 yamt int64_t loanbreak_orphaned; /* O->A->K loan turned into A->K loan due to
475 1.176.2.6 yamt write to O */
476 1.176.2.6 yamt int64_t loanfree_orphaned; /* O->A->K loan turned into A->K loan due to
477 1.176.2.6 yamt free of O */
478 1.176.2.6 yamt int64_t loanbreak_orphaned_anon; /* O->A->K loan turned into O->K loan
479 1.176.2.6 yamt due to write to A */
480 1.176.2.6 yamt int64_t loanfree_orphaned_anon; /* O->A->K loan turned into O->K loan
481 1.176.2.6 yamt due to free of A */
482 1.176.2.6 yamt
483 1.176.2.6 yamt int64_t loanbreak_oa_obj; /* O->A loan resolved on write to O */
484 1.176.2.6 yamt int64_t loanfree_oa_obj; /* O->A loan resolved on free of O */
485 1.176.2.6 yamt int64_t loanbreak_oa_anon; /* O->A loan resolved on write to A */
486 1.176.2.6 yamt int64_t loanfree_oa_anon; /* O->A loan resolved on free of A */
487 1.176.2.6 yamt int64_t loan_resolve_orphan; /* O->A loaned page taken over by anon */
488 1.176.2.6 yamt int64_t loan_obj_read; /* O->A loan for read(2) */
489 1.1 mrg };
490 1.1 mrg
491 1.31 thorpej #ifdef _KERNEL
492 1.97 chs /* we need this before including uvm_page.h on some platforms */
493 1.45 mrg extern struct uvmexp uvmexp;
494 1.168 matt /* MD code needs this without including <uvm/uvm.h> */
495 1.168 matt extern bool vm_page_zero_enable;
496 1.176.2.7 yamt
497 1.176.2.8 yamt extern int vm_loan_read_thresh;
498 1.45 mrg #endif
499 1.1 mrg
500 1.45 mrg /*
501 1.45 mrg * Finally, bring in standard UVM headers.
502 1.45 mrg */
503 1.45 mrg #include <sys/vmmeter.h>
504 1.45 mrg #include <sys/queue.h>
505 1.116 he #include <sys/lock.h>
506 1.176.2.9 yamt #ifdef _KERNEL
507 1.176.2.9 yamt #include <sys/vmem.h>
508 1.176.2.9 yamt #endif
509 1.45 mrg #include <uvm/uvm_param.h>
510 1.45 mrg #include <uvm/uvm_prot.h>
511 1.45 mrg #include <uvm/uvm_pmap.h>
512 1.45 mrg #include <uvm/uvm_map.h>
513 1.45 mrg #include <uvm/uvm_pager.h>
514 1.45 mrg
515 1.45 mrg /*
516 1.138 yamt * helpers for calling ubc_release()
517 1.138 yamt */
518 1.138 yamt #ifdef PMAP_CACHE_VIVT
519 1.138 yamt #define UBC_WANT_UNMAP(vp) (((vp)->v_iflag & VI_TEXT) != 0)
520 1.138 yamt #else
521 1.138 yamt #define UBC_WANT_UNMAP(vp) false
522 1.138 yamt #endif
523 1.150 pooka #define UBC_UNMAP_FLAG(vp) (UBC_WANT_UNMAP(vp) ? UBC_UNMAP : 0)
524 1.138 yamt
525 1.138 yamt /*
526 1.45 mrg * Shareable process virtual address space.
527 1.45 mrg * May eventually be merged with vm_map.
528 1.45 mrg * Several fields are temporary (text, data stuff).
529 1.45 mrg */
530 1.45 mrg struct vmspace {
531 1.45 mrg struct vm_map vm_map; /* VM address map */
532 1.92 pk int vm_refcnt; /* number of references *
533 1.92 pk * note: protected by vm_map.ref_lock */
534 1.128 christos void * vm_shm; /* SYS5 shared memory private data XXX */
535 1.45 mrg /* we copy from vm_startcopy to the end of the structure on fork */
536 1.45 mrg #define vm_startcopy vm_rssize
537 1.59 thorpej segsz_t vm_rssize; /* current resident set size in pages */
538 1.45 mrg segsz_t vm_swrss; /* resident set size before last swap */
539 1.45 mrg segsz_t vm_tsize; /* text size (pages) XXX */
540 1.45 mrg segsz_t vm_dsize; /* data size (pages) XXX */
541 1.45 mrg segsz_t vm_ssize; /* stack size (pages) */
542 1.153 mrg segsz_t vm_issize; /* initial unmapped stack size (pages) */
543 1.128 christos void * vm_taddr; /* user virtual address of text XXX */
544 1.128 christos void * vm_daddr; /* user virtual address of data XXX */
545 1.128 christos void *vm_maxsaddr; /* user VA at max stack growth */
546 1.128 christos void *vm_minsaddr; /* user VA at top of stack */
547 1.142 christos size_t vm_aslr_delta_mmap; /* mmap() random delta for ASLR */
548 1.45 mrg };
549 1.111 yamt #define VMSPACE_IS_KERNEL_P(vm) VM_MAP_IS_KERNEL(&(vm)->vm_map)
550 1.45 mrg
551 1.45 mrg #ifdef _KERNEL
552 1.43 mrg
553 1.43 mrg /*
554 1.70 thorpej * used to keep state while iterating over the map for a core dump.
555 1.70 thorpej */
556 1.70 thorpej struct uvm_coredump_state {
557 1.70 thorpej void *cookie; /* opaque for the caller */
558 1.70 thorpej vaddr_t start; /* start of region */
559 1.102 matt vaddr_t realend; /* real end of region */
560 1.102 matt vaddr_t end; /* virtual end of region */
561 1.70 thorpej vm_prot_t prot; /* protection of region */
562 1.70 thorpej int flags; /* flags; see below */
563 1.70 thorpej };
564 1.70 thorpej
565 1.70 thorpej #define UVM_COREDUMP_STACK 0x01 /* region is user stack */
566 1.70 thorpej
567 1.70 thorpej /*
568 1.43 mrg * the various kernel maps, owned by MD code
569 1.43 mrg */
570 1.65 chs extern struct vm_map *kernel_map;
571 1.65 chs extern struct vm_map *phys_map;
572 1.79 thorpej
573 1.79 thorpej /*
574 1.1 mrg * macros
575 1.1 mrg */
576 1.1 mrg
577 1.45 mrg #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap))
578 1.1 mrg
579 1.44 mrg
580 1.44 mrg /* vm_machdep.c */
581 1.170 pooka int vmapbuf(struct buf *, vsize_t);
582 1.91 junyoung void vunmapbuf(struct buf *, vsize_t);
583 1.31 thorpej
584 1.1 mrg /* uvm_aobj.c */
585 1.91 junyoung struct uvm_object *uao_create(vsize_t, int);
586 1.91 junyoung void uao_detach(struct uvm_object *);
587 1.91 junyoung void uao_reference(struct uvm_object *);
588 1.1 mrg
589 1.53 chs /* uvm_bio.c */
590 1.91 junyoung void ubc_init(void);
591 1.107 yamt void * ubc_alloc(struct uvm_object *, voff_t, vsize_t *, int,
592 1.107 yamt int);
593 1.91 junyoung void ubc_release(void *, int);
594 1.130 yamt int ubc_uiomove(struct uvm_object *, struct uio *, vsize_t,
595 1.134 yamt int, int);
596 1.174 hannken void ubc_zerorange(struct uvm_object *, off_t, size_t, int);
597 1.173 rmind void ubc_purge(struct uvm_object *);
598 1.53 chs
599 1.155 rmind /* uvm_emap.c */
600 1.155 rmind void uvm_emap_sysinit(void);
601 1.155 rmind #ifdef __HAVE_PMAP_EMAP
602 1.155 rmind void uvm_emap_switch(lwp_t *);
603 1.155 rmind #else
604 1.155 rmind #define uvm_emap_switch(l)
605 1.155 rmind #endif
606 1.155 rmind
607 1.155 rmind u_int uvm_emap_gen_return(void);
608 1.155 rmind void uvm_emap_update(u_int);
609 1.155 rmind
610 1.155 rmind vaddr_t uvm_emap_alloc(vsize_t, bool);
611 1.155 rmind void uvm_emap_free(vaddr_t, size_t);
612 1.155 rmind
613 1.155 rmind void uvm_emap_enter(vaddr_t, struct vm_page **, u_int);
614 1.155 rmind void uvm_emap_remove(vaddr_t, vsize_t);
615 1.155 rmind
616 1.155 rmind #ifdef __HAVE_PMAP_EMAP
617 1.155 rmind void uvm_emap_consume(u_int);
618 1.155 rmind u_int uvm_emap_produce(void);
619 1.155 rmind #else
620 1.155 rmind #define uvm_emap_consume(x)
621 1.155 rmind #define uvm_emap_produce() UVM_EMAP_INACTIVE
622 1.155 rmind #endif
623 1.155 rmind
624 1.1 mrg /* uvm_fault.c */
625 1.112 drochner #define uvm_fault(m, a, p) uvm_fault_internal(m, a, p, 0)
626 1.112 drochner int uvm_fault_internal(struct vm_map *, vaddr_t, vm_prot_t, int);
627 1.112 drochner /* handle a page fault */
628 1.1 mrg
629 1.1 mrg /* uvm_glue.c */
630 1.1 mrg #if defined(KGDB)
631 1.128 christos void uvm_chgkprot(void *, size_t, int);
632 1.1 mrg #endif
633 1.126 thorpej void uvm_proc_fork(struct proc *, struct proc *, bool);
634 1.91 junyoung void uvm_lwp_fork(struct lwp *, struct lwp *,
635 1.91 junyoung void *, size_t, void (*)(void *), void *);
636 1.91 junyoung int uvm_coredump_walkmap(struct proc *,
637 1.103 matt void *,
638 1.103 matt int (*)(struct proc *, void *,
639 1.91 junyoung struct uvm_coredump_state *), void *);
640 1.91 junyoung void uvm_proc_exit(struct proc *);
641 1.91 junyoung void uvm_lwp_exit(struct lwp *);
642 1.91 junyoung void uvm_init_limits(struct proc *);
643 1.173 rmind bool uvm_kernacc(void *, size_t, vm_prot_t);
644 1.141 perry __dead void uvm_scheduler(void);
645 1.160 rmind vaddr_t uvm_uarea_alloc(void);
646 1.160 rmind void uvm_uarea_free(vaddr_t);
647 1.176.2.10 yamt vaddr_t uvm_uarea_system_alloc(struct cpu_info *);
648 1.171 matt void uvm_uarea_system_free(vaddr_t);
649 1.161 rmind vaddr_t uvm_lwp_getuarea(lwp_t *);
650 1.161 rmind void uvm_lwp_setuarea(lwp_t *, vaddr_t);
651 1.119 chs int uvm_vslock(struct vmspace *, void *, size_t, vm_prot_t);
652 1.119 chs void uvm_vsunlock(struct vmspace *, void *, size_t);
653 1.135 ad void uvm_cpu_attach(struct cpu_info *);
654 1.1 mrg
655 1.1 mrg
656 1.1 mrg /* uvm_init.c */
657 1.91 junyoung void uvm_init(void);
658 1.1 mrg
659 1.1 mrg /* uvm_io.c */
660 1.91 junyoung int uvm_io(struct vm_map *, struct uio *);
661 1.1 mrg
662 1.1 mrg /* uvm_km.c */
663 1.100 yamt vaddr_t uvm_km_alloc(struct vm_map *, vsize_t, vsize_t,
664 1.100 yamt uvm_flag_t);
665 1.100 yamt void uvm_km_free(struct vm_map *, vaddr_t, vsize_t,
666 1.100 yamt uvm_flag_t);
667 1.100 yamt
668 1.91 junyoung struct vm_map *uvm_km_suballoc(struct vm_map *, vaddr_t *,
669 1.126 thorpej vaddr_t *, vsize_t, int, bool,
670 1.176.2.9 yamt struct vm_map *);
671 1.176.2.9 yamt #ifdef _KERNEL
672 1.176.2.9 yamt int uvm_km_kmem_alloc(vmem_t *, vmem_size_t, vm_flag_t,
673 1.176.2.9 yamt vmem_addr_t *);
674 1.176.2.9 yamt void uvm_km_kmem_free(vmem_t *, vmem_addr_t, vmem_size_t);
675 1.176.2.9 yamt bool uvm_km_va_starved_p(void);
676 1.176.2.9 yamt #endif
677 1.65 chs
678 1.1 mrg /* uvm_map.c */
679 1.91 junyoung int uvm_map(struct vm_map *, vaddr_t *, vsize_t,
680 1.91 junyoung struct uvm_object *, voff_t, vsize_t,
681 1.91 junyoung uvm_flag_t);
682 1.91 junyoung int uvm_map_pageable(struct vm_map *, vaddr_t,
683 1.126 thorpej vaddr_t, bool, int);
684 1.91 junyoung int uvm_map_pageable_all(struct vm_map *, int, vsize_t);
685 1.126 thorpej bool uvm_map_checkprot(struct vm_map *, vaddr_t,
686 1.91 junyoung vaddr_t, vm_prot_t);
687 1.91 junyoung int uvm_map_protect(struct vm_map *, vaddr_t,
688 1.126 thorpej vaddr_t, vm_prot_t, bool);
689 1.91 junyoung struct vmspace *uvmspace_alloc(vaddr_t, vaddr_t);
690 1.91 junyoung void uvmspace_init(struct vmspace *, struct pmap *,
691 1.91 junyoung vaddr_t, vaddr_t);
692 1.91 junyoung void uvmspace_exec(struct lwp *, vaddr_t, vaddr_t);
693 1.176.2.9 yamt void uvmspace_spawn(struct lwp *, vaddr_t, vaddr_t);
694 1.91 junyoung struct vmspace *uvmspace_fork(struct vmspace *);
695 1.111 yamt void uvmspace_addref(struct vmspace *);
696 1.91 junyoung void uvmspace_free(struct vmspace *);
697 1.91 junyoung void uvmspace_share(struct proc *, struct proc *);
698 1.91 junyoung void uvmspace_unshare(struct lwp *);
699 1.1 mrg
700 1.140 yamt void uvm_whatis(uintptr_t, void (*)(const char *, ...));
701 1.1 mrg
702 1.1 mrg /* uvm_meter.c */
703 1.91 junyoung int uvm_sysctl(int *, u_int, void *, size_t *,
704 1.91 junyoung void *, size_t, struct proc *);
705 1.118 yamt int uvm_pctparam_check(struct uvm_pctparam *, int);
706 1.108 yamt void uvm_pctparam_set(struct uvm_pctparam *, int);
707 1.118 yamt int uvm_pctparam_get(struct uvm_pctparam *);
708 1.118 yamt void uvm_pctparam_init(struct uvm_pctparam *, int,
709 1.118 yamt int (*)(struct uvm_pctparam *, int));
710 1.118 yamt int uvm_pctparam_createsysctlnode(struct uvm_pctparam *,
711 1.118 yamt const char *, const char *);
712 1.1 mrg
713 1.1 mrg /* uvm_mmap.c */
714 1.91 junyoung int uvm_mmap(struct vm_map *, vaddr_t *, vsize_t,
715 1.91 junyoung vm_prot_t, vm_prot_t, int,
716 1.91 junyoung void *, voff_t, vsize_t);
717 1.99 fvdl vaddr_t uvm_default_mapaddr(struct proc *, vaddr_t, vsize_t);
718 1.1 mrg
719 1.109 yamt /* uvm_mremap.c */
720 1.109 yamt int uvm_mremap(struct vm_map *, vaddr_t, vsize_t,
721 1.109 yamt struct vm_map *, vaddr_t *, vsize_t,
722 1.109 yamt struct proc *, int);
723 1.109 yamt
724 1.120 yamt /* uvm_object.c */
725 1.173 rmind void uvm_obj_init(struct uvm_object *,
726 1.173 rmind const struct uvm_pagerops *, bool, u_int);
727 1.173 rmind void uvm_obj_setlock(struct uvm_object *, kmutex_t *);
728 1.173 rmind void uvm_obj_destroy(struct uvm_object *, bool);
729 1.175 christos int uvm_obj_wirepages(struct uvm_object *, off_t, off_t,
730 1.175 christos struct pglist *);
731 1.173 rmind void uvm_obj_unwirepages(struct uvm_object *, off_t, off_t);
732 1.120 yamt
733 1.1 mrg /* uvm_page.c */
734 1.91 junyoung struct vm_page *uvm_pagealloc_strat(struct uvm_object *,
735 1.91 junyoung voff_t, struct vm_anon *, int, int, int);
736 1.24 chs #define uvm_pagealloc(obj, off, anon, flags) \
737 1.24 chs uvm_pagealloc_strat((obj), (off), (anon), (flags), \
738 1.24 chs UVM_PGA_STRAT_NORMAL, 0)
739 1.91 junyoung void uvm_pagereplace(struct vm_page *,
740 1.91 junyoung struct vm_page *);
741 1.91 junyoung void uvm_pagerealloc(struct vm_page *,
742 1.91 junyoung struct uvm_object *, voff_t);
743 1.19 eeh /* Actually, uvm_page_physload takes PF#s which need their own type */
744 1.91 junyoung void uvm_page_physload(paddr_t, paddr_t, paddr_t,
745 1.91 junyoung paddr_t, int);
746 1.91 junyoung void uvm_setpagesize(void);
747 1.1 mrg
748 1.53 chs /* uvm_pager.c */
749 1.91 junyoung void uvm_aio_biodone(struct buf *);
750 1.91 junyoung void uvm_aio_aiodone(struct buf *);
751 1.145 yamt void uvm_aio_aiodone_pages(struct vm_page **, int, bool,
752 1.145 yamt int);
753 1.53 chs
754 1.1 mrg /* uvm_pdaemon.c */
755 1.91 junyoung void uvm_pageout(void *);
756 1.124 yamt struct work;
757 1.124 yamt void uvm_aiodone_worker(struct work *, void *);
758 1.143 ad void uvm_pageout_start(int);
759 1.143 ad void uvm_pageout_done(int);
760 1.118 yamt void uvm_estimatepageable(int *, int *);
761 1.1 mrg
762 1.1 mrg /* uvm_pglist.c */
763 1.91 junyoung int uvm_pglistalloc(psize_t, paddr_t, paddr_t,
764 1.91 junyoung paddr_t, paddr_t, struct pglist *, int, int);
765 1.91 junyoung void uvm_pglistfree(struct pglist *);
766 1.1 mrg
767 1.1 mrg /* uvm_swap.c */
768 1.91 junyoung void uvm_swap_init(void);
769 1.1 mrg
770 1.1 mrg /* uvm_unix.c */
771 1.91 junyoung int uvm_grow(struct proc *, vaddr_t);
772 1.1 mrg
773 1.1 mrg /* uvm_user.c */
774 1.91 junyoung void uvm_deallocate(struct vm_map *, vaddr_t, vsize_t);
775 1.1 mrg
776 1.1 mrg /* uvm_vnode.c */
777 1.176.2.5 yamt struct uvm_page_array;
778 1.91 junyoung void uvm_vnp_setsize(struct vnode *, voff_t);
779 1.130 yamt void uvm_vnp_setwritesize(struct vnode *, voff_t);
780 1.91 junyoung int uvn_findpages(struct uvm_object *, voff_t,
781 1.176.2.5 yamt unsigned int *, struct vm_page **,
782 1.176.2.5 yamt struct uvm_page_array *, unsigned int);
783 1.126 thorpej bool uvn_text_p(struct uvm_object *);
784 1.126 thorpej bool uvn_clean_p(struct uvm_object *);
785 1.126 thorpej bool uvn_needs_writefault_p(struct uvm_object *);
786 1.37 thorpej
787 1.37 thorpej /* kern_malloc.c */
788 1.91 junyoung void kmeminit_nkmempages(void);
789 1.91 junyoung void kmeminit(void);
790 1.37 thorpej extern int nkmempages;
791 1.1 mrg
792 1.31 thorpej #endif /* _KERNEL */
793 1.31 thorpej
794 1.8 perry #endif /* _UVM_UVM_EXTERN_H_ */
795