Annotation of src/sys/uvm/uvm_extern.h, Revision 1.139
1.139 ! yamt 1: /* $NetBSD: uvm_extern.h,v 1.138 2007/12/05 09:35:46 yamt Exp $ */
1.1 mrg 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.
1.4 mrg 33: *
34: * from: Id: uvm_extern.h,v 1.1.2.21 1998/02/07 01:16:53 chs Exp
1.1 mrg 35: */
36:
1.44 mrg 37: /*-
1.45 mrg 38: * Copyright (c) 1991, 1992, 1993
1.44 mrg 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.
1.83 agc 49: * 3. Neither the name of the University nor the names of its contributors
1.44 mrg 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:
1.8 perry 68: #ifndef _UVM_UVM_EXTERN_H_
69: #define _UVM_UVM_EXTERN_H_
1.1 mrg 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: /*
1.45 mrg 83: * typedefs, necessary for standard UVM headers.
84: */
85:
1.65 chs 86: typedef unsigned int uvm_flag_t;
1.45 mrg 87:
88: typedef int vm_inherit_t; /* XXX: inheritance codes */
89: typedef off_t voff_t; /* XXX: offset within a uvm_object */
1.117 cherry 90: typedef voff_t pgoff_t; /* XXX: number of pages within a uvm object */
1.45 mrg 91:
92: /*
1.1 mrg 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 */
1.107 yamt 131: /* advice: matches MADV_* from sys/mman.h and POSIX_FADV_* from sys/fcntl.h */
1.1 mrg 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:
1.98 yamt 138: /* bits 0xffff0000: mapping flags */
1.1 mrg 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 */
1.75 thorpej 145: #define UVM_FLAG_NOWAIT 0x400000 /* not allowed to sleep */
1.94 yamt 146: #define UVM_FLAG_QUANTUM 0x800000 /* entry never be splitted later */
1.98 yamt 147: #define UVM_FLAG_WAITVA 0x1000000 /* wait for va */
1.100 yamt 148: #define UVM_FLAG_VAONLY 0x2000000 /* unmap: no pages are mapped */
1.1 mrg 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) \
1.114 yamt 157: (((MAXPROT) << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS))
1.1 mrg 158:
1.67 chs 159: /* magic offset value: offset not known(obj) or don't care(!obj) */
1.38 kleink 160: #define UVM_UNKNOWN_OFFSET ((voff_t) -1)
1.1 mrg 161:
162: /*
1.100 yamt 163: * the following defines are for uvm_km_alloc/free's flags
1.1 mrg 164: */
1.100 yamt 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 */
1.115 drochner 171: #define UVM_KMF_EXEC 0x20 /* need executable mapping */
1.1 mrg 172: #define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */
1.75 thorpej 173: #define UVM_KMF_NOWAIT UVM_FLAG_NOWAIT /* not allowed to sleep */
1.100 yamt 174: #define UVM_KMF_WAITVA UVM_FLAG_WAITVA /* sleep for va */
1.1 mrg 175:
176: /*
1.15 thorpej 177: * the following defines the strategies for uvm_pagealloc_strat()
178: */
179: #define UVM_PGA_STRAT_NORMAL 0 /* high -> low free list walk */
180: #define UVM_PGA_STRAT_ONLY 1 /* only specified free list */
181: #define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */
182:
183: /*
1.24 chs 184: * flags for uvm_pagealloc_strat()
185: */
1.39 thorpej 186: #define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */
187: #define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */
1.24 chs 188:
189: /*
1.97 chs 190: * flags for ubc_alloc()
1.53 chs 191: */
1.130 yamt 192: #define UBC_READ 0x001
193: #define UBC_WRITE 0x002
194: #define UBC_FAULTBUSY 0x004
1.53 chs 195:
196: /*
1.97 chs 197: * flags for ubc_release()
198: */
1.130 yamt 199: #define UBC_UNMAP 0x010
200:
201: /*
202: * flags for ubc_uiomve()
203: */
204: #define UBC_PARTIALOK 0x100
1.97 chs 205:
206: /*
1.53 chs 207: * flags for uvn_findpages().
208: */
1.67 chs 209: #define UFP_ALL 0x00
210: #define UFP_NOWAIT 0x01
211: #define UFP_NOALLOC 0x02
212: #define UFP_NOCACHE 0x04
213: #define UFP_NORDONLY 0x08
214: #define UFP_DIRTYONLY 0x10
215: #define UFP_BACKWARD 0x20
1.53 chs 216:
217: /*
1.33 thorpej 218: * lockflags that control the locking behavior of various functions.
219: */
220: #define UVM_LK_ENTER 0x00000001 /* map locked on entry */
221: #define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */
222:
223: /*
1.1 mrg 224: * structures
225: */
226:
1.97 chs 227: struct buf;
1.1 mrg 228: struct core;
1.97 chs 229: struct loadavg;
1.1 mrg 230: struct mount;
231: struct pglist;
232: struct proc;
233: struct uio;
234: struct uvm_object;
235: struct vm_anon;
236: struct vmspace;
1.10 thorpej 237: struct pmap;
1.1 mrg 238: struct vnode;
1.53 chs 239: struct pool;
1.34 thorpej 240: struct simplelock;
1.65 chs 241: struct vm_map_entry;
242: struct vm_map;
243: struct vm_page;
1.97 chs 244: struct vmtotal;
1.53 chs 245:
1.1 mrg 246: /*
1.108 yamt 247: * uvm_pctparam: parameter to be shown as percentage to user.
248: */
249:
250: #define UVM_PCTPARAM_SHIFT 8
251: #define UVM_PCTPARAM_SCALE (1 << UVM_PCTPARAM_SHIFT)
252: #define UVM_PCTPARAM_APPLY(pct, x) \
253: (((x) * (pct)->pct_scaled) >> UVM_PCTPARAM_SHIFT)
254: struct uvm_pctparam {
1.118 yamt 255: int pct_pct; /* percent [0, 100] */ /* should be the first member */
1.108 yamt 256: int pct_scaled;
1.118 yamt 257: int (*pct_check)(struct uvm_pctparam *, int);
1.108 yamt 258: };
259:
260: /*
1.1 mrg 261: * uvmexp: global data structures that are exported to parts of the kernel
262: * other than the vm system.
263: */
264:
265: struct uvmexp {
1.9 mrg 266: /* vm_page constants */
1.1 mrg 267: int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */
268: int pagemask; /* page mask */
269: int pageshift; /* page shift */
270:
1.9 mrg 271: /* vm_page counters */
1.1 mrg 272: int npages; /* number of pages we manage */
273: int free; /* number of free pages */
1.3 chs 274: int paging; /* number of pages in the process of being paged out */
1.1 mrg 275: int wired; /* number of wired pages */
1.57 chs 276:
1.63 chs 277: /*
1.57 chs 278: * Adding anything before this line will break binary compatibility
279: * with top(1) on NetBSD 1.5.
1.54 simonb 280: */
1.57 chs 281:
1.67 chs 282: int ncolors; /* number of page color buckets: must be p-o-2 */
283: int colormask; /* color bucket mask */
284:
1.55 simonb 285: int zeropages; /* number of zero'd pages */
1.3 chs 286: int reserve_pagedaemon; /* number of pages reserved for pagedaemon */
1.55 simonb 287: int reserve_kernel; /* number of pages reserved for kernel */
1.137 ad 288: unsigned anonpages; /* number of pages used by anon mappings */
289: unsigned filepages; /* number of pages used by cached file data */
290: unsigned execpages; /* number of pages used by cached exec data */
1.1 mrg 291:
1.9 mrg 292: /* pageout params */
293: int freemin; /* min number of free pages */
294: int freetarg; /* target number of free pages */
295: int wiredmax; /* max number of wired pages */
1.1 mrg 296:
1.9 mrg 297: /* swap */
1.1 mrg 298: int nswapdev; /* number of configured swap devices in system */
299: int swpages; /* number of PAGE_SIZE'ed swap pages */
1.84 pk 300: int swpgavail; /* number of swap pages currently available */
1.3 chs 301: int swpginuse; /* number of swap pages in use */
1.23 chs 302: int swpgonly; /* number of swap pages in use, not also in RAM */
1.1 mrg 303: int nswget; /* number of times fault calls uvm_swap_get() */
304:
1.110 simonb 305: /* stat counters. XXX: should be 64-bit counters */
1.7 mrg 306: int faults; /* page fault count */
307: int traps; /* trap count */
308: int intrs; /* interrupt count */
309: int swtch; /* context switch count */
310: int softs; /* software interrupt count */
311: int syscalls; /* system calls */
312: int pageins; /* pagein operation count */
313: /* pageouts are in pdpageouts below */
314: int swapins; /* swapins */
315: int swapouts; /* swapouts */
316: int pgswapin; /* pages swapped in */
317: int pgswapout; /* pages swapped out */
318: int forks; /* forks */
1.1 mrg 319: int forks_ppwait; /* forks where parent waits */
320: int forks_sharevm; /* forks where vmspace is shared */
1.40 thorpej 321: int pga_zerohit; /* pagealloc where zero wanted and zero
322: was available */
323: int pga_zeromiss; /* pagealloc where zero wanted and zero
324: not available */
1.50 thorpej 325: int zeroaborts; /* number of times page zeroing was
326: aborted */
1.60 thorpej 327: int colorhit; /* pagealloc where we got optimal color */
328: int colormiss; /* pagealloc where we didn't */
1.1 mrg 329:
1.110 simonb 330: /* fault subcounters. XXX: should be 64-bit counters */
1.1 mrg 331: int fltnoram; /* number of times fault was out of ram */
332: int fltnoanon; /* number of times fault was out of anons */
333: int fltpgwait; /* number of times fault had to wait on a page */
334: int fltpgrele; /* number of times fault found a released page */
335: int fltrelck; /* number of times fault relock called */
336: int fltrelckok; /* number of times fault relock is a success */
337: int fltanget; /* number of times fault gets anon page */
338: int fltanretry; /* number of times fault retrys an anon get */
339: int fltamcopy; /* number of times fault clears "needs copy" */
340: int fltnamap; /* number of times fault maps a neighbor anon page */
341: int fltnomap; /* number of times fault maps a neighbor obj page */
342: int fltlget; /* number of times fault does a locked pgo_get */
343: int fltget; /* number of times fault does an unlocked get */
344: int flt_anon; /* number of times fault anon (case 1a) */
345: int flt_acow; /* number of times fault anon cow (case 1b) */
346: int flt_obj; /* number of times fault is on object page (2a) */
347: int flt_prcopy; /* number of times fault promotes with copy (2b) */
348: int flt_przero; /* number of times fault promotes with zerofill (2b) */
349:
1.110 simonb 350: /* daemon counters. XXX: should be 64-bit counters */
1.1 mrg 351: int pdwoke; /* number of times daemon woke up */
352: int pdrevs; /* number of times daemon rev'd clock hand */
353: int pdswout; /* number of times daemon called for swapout */
354: int pdfreed; /* number of pages daemon freed since boot */
1.78 wiz 355: int pdscans; /* number of pages daemon scanned since boot */
1.1 mrg 356: int pdanscan; /* number of anonymous pages scanned by daemon */
357: int pdobscan; /* number of object pages scanned by daemon */
358: int pdreact; /* number of pages daemon reactivated since boot */
359: int pdbusy; /* number of times daemon found a busy page */
360: int pdpageouts; /* number of times daemon started a pageout */
361: int pdpending; /* number of times daemon got a pending pagout */
362: int pddeact; /* number of pages daemon deactivates */
1.69 chs 363: int pdreanon; /* anon pages reactivated due to thresholds */
364: int pdrefile; /* file pages reactivated due to thresholds */
365: int pdreexec; /* executable pages reactivated due to thresholds */
1.54 simonb 366: };
367:
368: /*
369: * The following structure is 64-bit alignment safe. New elements
370: * should only be added to the end of this structure so binary
371: * compatibility can be preserved.
372: */
373: struct uvmexp_sysctl {
374: int64_t pagesize;
375: int64_t pagemask;
376: int64_t pageshift;
377: int64_t npages;
378: int64_t free;
379: int64_t active;
380: int64_t inactive;
381: int64_t paging;
382: int64_t wired;
383: int64_t zeropages;
384: int64_t reserve_pagedaemon;
385: int64_t reserve_kernel;
386: int64_t freemin;
387: int64_t freetarg;
1.118 yamt 388: int64_t inactarg; /* unused */
1.54 simonb 389: int64_t wiredmax;
390: int64_t nswapdev;
391: int64_t swpages;
392: int64_t swpginuse;
393: int64_t swpgonly;
394: int64_t nswget;
1.101 yamt 395: int64_t unused1; /* used to be nanon */
396: int64_t unused2; /* used to be nanonneeded */
397: int64_t unused3; /* used to be nfreeanon */
1.54 simonb 398: int64_t faults;
399: int64_t traps;
400: int64_t intrs;
401: int64_t swtch;
402: int64_t softs;
403: int64_t syscalls;
404: int64_t pageins;
405: int64_t swapins;
406: int64_t swapouts;
407: int64_t pgswapin;
408: int64_t pgswapout;
409: int64_t forks;
410: int64_t forks_ppwait;
411: int64_t forks_sharevm;
412: int64_t pga_zerohit;
413: int64_t pga_zeromiss;
414: int64_t zeroaborts;
415: int64_t fltnoram;
416: int64_t fltnoanon;
417: int64_t fltpgwait;
418: int64_t fltpgrele;
419: int64_t fltrelck;
420: int64_t fltrelckok;
421: int64_t fltanget;
422: int64_t fltanretry;
423: int64_t fltamcopy;
424: int64_t fltnamap;
425: int64_t fltnomap;
426: int64_t fltlget;
427: int64_t fltget;
428: int64_t flt_anon;
429: int64_t flt_acow;
430: int64_t flt_obj;
431: int64_t flt_prcopy;
432: int64_t flt_przero;
433: int64_t pdwoke;
434: int64_t pdrevs;
435: int64_t pdswout;
436: int64_t pdfreed;
437: int64_t pdscans;
438: int64_t pdanscan;
439: int64_t pdobscan;
440: int64_t pdreact;
441: int64_t pdbusy;
442: int64_t pdpageouts;
443: int64_t pdpending;
444: int64_t pddeact;
1.55 simonb 445: int64_t anonpages;
1.69 chs 446: int64_t filepages;
447: int64_t execpages;
1.60 thorpej 448: int64_t colorhit;
449: int64_t colormiss;
1.61 thorpej 450: int64_t ncolors;
1.1 mrg 451: };
452:
1.31 thorpej 453: #ifdef _KERNEL
1.97 chs 454: /* we need this before including uvm_page.h on some platforms */
1.45 mrg 455: extern struct uvmexp uvmexp;
456: #endif
1.1 mrg 457:
1.45 mrg 458: /*
459: * Finally, bring in standard UVM headers.
460: */
461: #include <sys/vmmeter.h>
462: #include <sys/queue.h>
1.116 he 463: #include <sys/lock.h>
1.45 mrg 464: #include <uvm/uvm_param.h>
465: #include <uvm/uvm_prot.h>
466: #include <uvm/uvm_page.h>
467: #include <uvm/uvm_pmap.h>
468: #include <uvm/uvm_map.h>
469: #include <uvm/uvm_pager.h>
470:
471: /*
1.138 yamt 472: * helpers for calling ubc_release()
473: */
474: #ifdef PMAP_CACHE_VIVT
475: #define UBC_WANT_UNMAP(vp) (((vp)->v_iflag & VI_TEXT) != 0)
476: #else
477: #define UBC_WANT_UNMAP(vp) false
478: #endif
479:
480: /*
1.45 mrg 481: * Shareable process virtual address space.
482: * May eventually be merged with vm_map.
483: * Several fields are temporary (text, data stuff).
484: */
485: struct vmspace {
486: struct vm_map vm_map; /* VM address map */
1.92 pk 487: int vm_refcnt; /* number of references *
488: * note: protected by vm_map.ref_lock */
1.128 christos 489: void * vm_shm; /* SYS5 shared memory private data XXX */
1.45 mrg 490: /* we copy from vm_startcopy to the end of the structure on fork */
491: #define vm_startcopy vm_rssize
1.59 thorpej 492: segsz_t vm_rssize; /* current resident set size in pages */
1.45 mrg 493: segsz_t vm_swrss; /* resident set size before last swap */
494: segsz_t vm_tsize; /* text size (pages) XXX */
495: segsz_t vm_dsize; /* data size (pages) XXX */
496: segsz_t vm_ssize; /* stack size (pages) */
1.128 christos 497: void * vm_taddr; /* user virtual address of text XXX */
498: void * vm_daddr; /* user virtual address of data XXX */
499: void *vm_maxsaddr; /* user VA at max stack growth */
500: void *vm_minsaddr; /* user VA at top of stack */
1.45 mrg 501: };
1.111 yamt 502: #define VMSPACE_IS_KERNEL_P(vm) VM_MAP_IS_KERNEL(&(vm)->vm_map)
1.45 mrg 503:
504: #ifdef _KERNEL
1.43 mrg 505:
1.97 chs 506: extern struct pool *uvm_aiobuf_pool;
507:
1.43 mrg 508: /*
1.70 thorpej 509: * used to keep state while iterating over the map for a core dump.
510: */
511: struct uvm_coredump_state {
512: void *cookie; /* opaque for the caller */
513: vaddr_t start; /* start of region */
1.102 matt 514: vaddr_t realend; /* real end of region */
515: vaddr_t end; /* virtual end of region */
1.70 thorpej 516: vm_prot_t prot; /* protection of region */
517: int flags; /* flags; see below */
518: };
519:
520: #define UVM_COREDUMP_STACK 0x01 /* region is user stack */
521:
522: /*
1.43 mrg 523: * the various kernel maps, owned by MD code
524: */
1.65 chs 525: extern struct vm_map *exec_map;
526: extern struct vm_map *kernel_map;
527: extern struct vm_map *kmem_map;
528: extern struct vm_map *mb_map;
529: extern struct vm_map *phys_map;
1.79 thorpej 530:
531: /*
1.1 mrg 532: * macros
533: */
534:
1.45 mrg 535: #define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap))
1.1 mrg 536:
1.77 thorpej 537: #include <sys/mallocvar.h>
538: MALLOC_DECLARE(M_VMMAP);
539: MALLOC_DECLARE(M_VMPMAP);
1.44 mrg 540:
541: /* vm_machdep.c */
1.91 junyoung 542: void vmapbuf(struct buf *, vsize_t);
543: void vunmapbuf(struct buf *, vsize_t);
1.44 mrg 544: #ifndef cpu_swapin
1.91 junyoung 545: void cpu_swapin(struct lwp *);
1.44 mrg 546: #endif
547: #ifndef cpu_swapout
1.91 junyoung 548: void cpu_swapout(struct lwp *);
1.44 mrg 549: #endif
1.31 thorpej 550:
1.1 mrg 551: /* uvm_aobj.c */
1.91 junyoung 552: struct uvm_object *uao_create(vsize_t, int);
553: void uao_detach(struct uvm_object *);
554: void uao_detach_locked(struct uvm_object *);
555: void uao_reference(struct uvm_object *);
556: void uao_reference_locked(struct uvm_object *);
1.1 mrg 557:
1.53 chs 558: /* uvm_bio.c */
1.91 junyoung 559: void ubc_init(void);
1.107 yamt 560: void * ubc_alloc(struct uvm_object *, voff_t, vsize_t *, int,
561: int);
1.91 junyoung 562: void ubc_release(void *, int);
563: void ubc_flush(struct uvm_object *, voff_t, voff_t);
1.130 yamt 564: int ubc_uiomove(struct uvm_object *, struct uio *, vsize_t,
1.134 yamt 565: int, int);
1.53 chs 566:
1.1 mrg 567: /* uvm_fault.c */
1.112 drochner 568: #define uvm_fault(m, a, p) uvm_fault_internal(m, a, p, 0)
569: int uvm_fault_internal(struct vm_map *, vaddr_t, vm_prot_t, int);
570: /* handle a page fault */
1.1 mrg 571:
572: /* uvm_glue.c */
573: #if defined(KGDB)
1.128 christos 574: void uvm_chgkprot(void *, size_t, int);
1.1 mrg 575: #endif
1.126 thorpej 576: void uvm_proc_fork(struct proc *, struct proc *, bool);
1.91 junyoung 577: void uvm_lwp_fork(struct lwp *, struct lwp *,
578: void *, size_t, void (*)(void *), void *);
579: int uvm_coredump_walkmap(struct proc *,
1.103 matt 580: void *,
581: int (*)(struct proc *, void *,
1.91 junyoung 582: struct uvm_coredump_state *), void *);
583: void uvm_proc_exit(struct proc *);
584: void uvm_lwp_exit(struct lwp *);
585: void uvm_init_limits(struct proc *);
1.128 christos 586: bool uvm_kernacc(void *, size_t, int);
1.91 junyoung 587: __dead void uvm_scheduler(void) __attribute__((noreturn));
1.125 ad 588: void uvm_kick_scheduler(void);
1.91 junyoung 589: void uvm_swapin(struct lwp *);
1.126 thorpej 590: bool uvm_uarea_alloc(vaddr_t *);
1.136 ad 591: void uvm_uarea_free(vaddr_t, struct cpu_info *);
1.126 thorpej 592: void uvm_uarea_drain(bool);
1.119 chs 593: int uvm_vslock(struct vmspace *, void *, size_t, vm_prot_t);
594: void uvm_vsunlock(struct vmspace *, void *, size_t);
1.131 ad 595: void uvm_lwp_hold(struct lwp *);
596: void uvm_lwp_rele(struct lwp *);
1.135 ad 597: void uvm_cpu_attach(struct cpu_info *);
1.1 mrg 598:
599:
600: /* uvm_init.c */
1.91 junyoung 601: void uvm_init(void);
1.1 mrg 602:
603: /* uvm_io.c */
1.91 junyoung 604: int uvm_io(struct vm_map *, struct uio *);
1.1 mrg 605:
606: /* uvm_km.c */
1.100 yamt 607: vaddr_t uvm_km_alloc(struct vm_map *, vsize_t, vsize_t,
608: uvm_flag_t);
609: void uvm_km_free(struct vm_map *, vaddr_t, vsize_t,
610: uvm_flag_t);
611:
1.91 junyoung 612: struct vm_map *uvm_km_suballoc(struct vm_map *, vaddr_t *,
1.126 thorpej 613: vaddr_t *, vsize_t, int, bool,
1.95 yamt 614: struct vm_map_kernel *);
1.126 thorpej 615: vaddr_t uvm_km_alloc_poolpage(struct vm_map *, bool);
1.100 yamt 616: void uvm_km_free_poolpage(struct vm_map *, vaddr_t);
1.126 thorpej 617: vaddr_t uvm_km_alloc_poolpage_cache(struct vm_map *, bool);
1.96 yamt 618: void uvm_km_free_poolpage_cache(struct vm_map *, vaddr_t);
619: void uvm_km_vacache_init(struct vm_map *,
620: const char *, size_t);
1.65 chs 621:
1.1 mrg 622: /* uvm_map.c */
1.91 junyoung 623: int uvm_map(struct vm_map *, vaddr_t *, vsize_t,
624: struct uvm_object *, voff_t, vsize_t,
625: uvm_flag_t);
626: int uvm_map_pageable(struct vm_map *, vaddr_t,
1.126 thorpej 627: vaddr_t, bool, int);
1.91 junyoung 628: int uvm_map_pageable_all(struct vm_map *, int, vsize_t);
1.126 thorpej 629: bool uvm_map_checkprot(struct vm_map *, vaddr_t,
1.91 junyoung 630: vaddr_t, vm_prot_t);
631: int uvm_map_protect(struct vm_map *, vaddr_t,
1.126 thorpej 632: vaddr_t, vm_prot_t, bool);
1.91 junyoung 633: struct vmspace *uvmspace_alloc(vaddr_t, vaddr_t);
634: void uvmspace_init(struct vmspace *, struct pmap *,
635: vaddr_t, vaddr_t);
636: void uvmspace_exec(struct lwp *, vaddr_t, vaddr_t);
637: struct vmspace *uvmspace_fork(struct vmspace *);
1.111 yamt 638: void uvmspace_addref(struct vmspace *);
1.91 junyoung 639: void uvmspace_free(struct vmspace *);
640: void uvmspace_share(struct proc *, struct proc *);
641: void uvmspace_unshare(struct lwp *);
1.1 mrg 642:
643:
644: /* uvm_meter.c */
1.91 junyoung 645: void uvm_meter(void);
646: int uvm_sysctl(int *, u_int, void *, size_t *,
647: void *, size_t, struct proc *);
1.118 yamt 648: int uvm_pctparam_check(struct uvm_pctparam *, int);
1.108 yamt 649: void uvm_pctparam_set(struct uvm_pctparam *, int);
1.118 yamt 650: int uvm_pctparam_get(struct uvm_pctparam *);
651: void uvm_pctparam_init(struct uvm_pctparam *, int,
652: int (*)(struct uvm_pctparam *, int));
653: int uvm_pctparam_createsysctlnode(struct uvm_pctparam *,
654: const char *, const char *);
1.1 mrg 655:
656: /* uvm_mmap.c */
1.91 junyoung 657: int uvm_mmap(struct vm_map *, vaddr_t *, vsize_t,
658: vm_prot_t, vm_prot_t, int,
659: void *, voff_t, vsize_t);
1.99 fvdl 660: vaddr_t uvm_default_mapaddr(struct proc *, vaddr_t, vsize_t);
1.1 mrg 661:
1.109 yamt 662: /* uvm_mremap.c */
663: int uvm_mremap(struct vm_map *, vaddr_t, vsize_t,
664: struct vm_map *, vaddr_t *, vsize_t,
665: struct proc *, int);
666:
1.120 yamt 667: /* uvm_object.c */
668: int uobj_wirepages(struct uvm_object *uobj, off_t start,
669: off_t end);
670: void uobj_unwirepages(struct uvm_object *uobj, off_t start,
671: off_t end);
672:
1.1 mrg 673: /* uvm_page.c */
1.91 junyoung 674: struct vm_page *uvm_pagealloc_strat(struct uvm_object *,
675: voff_t, struct vm_anon *, int, int, int);
1.24 chs 676: #define uvm_pagealloc(obj, off, anon, flags) \
677: uvm_pagealloc_strat((obj), (off), (anon), (flags), \
678: UVM_PGA_STRAT_NORMAL, 0)
1.91 junyoung 679: void uvm_pagereplace(struct vm_page *,
680: struct vm_page *);
681: void uvm_pagerealloc(struct vm_page *,
682: struct uvm_object *, voff_t);
1.19 eeh 683: /* Actually, uvm_page_physload takes PF#s which need their own type */
1.91 junyoung 684: void uvm_page_physload(paddr_t, paddr_t, paddr_t,
685: paddr_t, int);
686: void uvm_setpagesize(void);
1.1 mrg 687:
1.53 chs 688: /* uvm_pager.c */
1.91 junyoung 689: void uvm_aio_biodone1(struct buf *);
690: void uvm_aio_biodone(struct buf *);
691: void uvm_aio_aiodone(struct buf *);
1.53 chs 692:
1.1 mrg 693: /* uvm_pdaemon.c */
1.91 junyoung 694: void uvm_pageout(void *);
1.124 yamt 695: struct work;
696: void uvm_aiodone_worker(struct work *, void *);
1.118 yamt 697: void uvm_estimatepageable(int *, int *);
1.1 mrg 698:
699: /* uvm_pglist.c */
1.91 junyoung 700: int uvm_pglistalloc(psize_t, paddr_t, paddr_t,
701: paddr_t, paddr_t, struct pglist *, int, int);
702: void uvm_pglistfree(struct pglist *);
1.1 mrg 703:
704: /* uvm_swap.c */
1.91 junyoung 705: void uvm_swap_init(void);
1.1 mrg 706:
707: /* uvm_unix.c */
1.91 junyoung 708: int uvm_grow(struct proc *, vaddr_t);
1.1 mrg 709:
710: /* uvm_user.c */
1.91 junyoung 711: void uvm_deallocate(struct vm_map *, vaddr_t, vsize_t);
1.1 mrg 712:
713: /* uvm_vnode.c */
1.91 junyoung 714: void uvm_vnp_setsize(struct vnode *, voff_t);
1.130 yamt 715: void uvm_vnp_setwritesize(struct vnode *, voff_t);
1.91 junyoung 716: int uvn_findpages(struct uvm_object *, voff_t,
717: int *, struct vm_page **, int);
718: void uvm_vnp_zerorange(struct vnode *, off_t, size_t);
1.126 thorpej 719: bool uvn_text_p(struct uvm_object *);
720: bool uvn_clean_p(struct uvm_object *);
721: bool uvn_needs_writefault_p(struct uvm_object *);
1.37 thorpej 722:
723: /* kern_malloc.c */
1.91 junyoung 724: void kmeminit_nkmempages(void);
725: void kmeminit(void);
1.37 thorpej 726: extern int nkmempages;
1.1 mrg 727:
1.31 thorpej 728: #endif /* _KERNEL */
729:
1.8 perry 730: #endif /* _UVM_UVM_EXTERN_H_ */
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