sys/vm/vm_map.h

   1 /*
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * The Mach Operating System project at Carnegie-Mellon University.
   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 the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      @(#)vm_map.h    8.9 (Berkeley) 5/17/95
  37  *
  38  *
  39  * Copyright (c) 1987, 1990 Carnegie-Mellon University.
  40  * All rights reserved.
  41  *
  42  * Authors: Avadis Tevanian, Jr., Michael Wayne Young
  43  *
  44  * Permission to use, copy, modify and distribute this software and
  45  * its documentation is hereby granted, provided that both the copyright
  46  * notice and this permission notice appear in all copies of the
  47  * software, derivative works or modified versions, and any portions
  48  * thereof, and that both notices appear in supporting documentation.
  49  *
  50  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  51  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  52  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  53  *
  54  * Carnegie Mellon requests users of this software to return to
  55  *
  56  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  57  *  School of Computer Science
  58  *  Carnegie Mellon University
  59  *  Pittsburgh PA 15213-3890
  60  *
  61  * any improvements or extensions that they make and grant Carnegie the
  62  * rights to redistribute these changes.
  63  *
  64  * $FreeBSD: src/sys/vm/vm_map.h,v 1.54.2.5 2003/01/13 22:51:17 dillon Exp $
  65  */
  66
  67 /*
  68  *      Virtual memory map module definitions.
  69  */
  70
  71 #ifndef _VM_VM_MAP_H_
  72 #define _VM_VM_MAP_H_
  73
  74 #ifndef _SYS_TYPES_H_
  75 #include <sys/types.h>
  76 #endif
  77 #ifdef _KERNEL
  78 #ifndef _SYS_KERNEL_H_
  79 #include <sys/kernel.h> /* ticks */
  80 #endif
  81 #endif
  82 #ifndef _SYS_TREE_H_
  83 #include <sys/tree.h>
  84 #endif
  85 #ifndef _SYS_SYSREF_H_
  86 #include <sys/sysref.h>
  87 #endif
  88 #ifndef _SYS_LOCK_H_
  89 #include <sys/lock.h>
  90 #endif
  91 #ifndef _SYS_VKERNEL_H_
  92 #include <sys/vkernel.h>
  93 #endif
  94 #ifndef _VM_VM_H_
  95 #include <vm/vm.h>
  96 #endif
  97 #ifndef _MACHINE_PMAP_H_
  98 #include <machine/pmap.h>
  99 #endif
 100 #ifndef _VM_VM_OBJECT_H_
 101 #include <vm/vm_object.h>
 102 #endif
 103 #ifndef _SYS_NULL_H_
 104 #include <sys/_null.h>
 105 #endif
 106
 107 struct vm_map_rb_tree;
 108 RB_PROTOTYPE(vm_map_rb_tree, vm_map_entry, rb_entry, rb_vm_map_compare);
 109
 110 /*
 111  *      Types defined:
 112  *
 113  *      vm_map_t                the high-level address map data structure.
 114  *      vm_map_entry_t          an entry in an address map.
 115  */
 116
 117 typedef u_int vm_flags_t;
 118 typedef u_int vm_eflags_t;
 119
 120 /*
 121  * A vm_map_entry may reference an object, a submap, a uksmap, or a
 122  * direct user-kernel shared map.
 123  */
 124 union vm_map_object {
 125         struct vm_object *vm_object;    /* object object */
 126         struct vm_map *sub_map;         /* belongs to another map */
 127         int     (*uksmap)(struct cdev *dev, vm_page_t fake);
 128         void    *map_object;            /* generic */
 129 };
 130
 131 union vm_map_aux {
 132         vm_offset_t avail_ssize;        /* amt can grow if this is a stack */
 133         vpte_t master_pde;              /* virtual page table root */
 134         struct cdev *dev;
 135         void    *map_aux;
 136 };
 137
 138 /*
 139  *      Address map entries consist of start and end addresses,
 140  *      a VM object (or sharing map) and offset into that object,
 141  *      and user-exported inheritance and protection information.
 142  *      Also included is control information for virtual copy operations.
 143  *
 144  *      When used with MAP_STACK, avail_ssize is used to determine the
 145  *      limits of stack growth.
 146  *
 147  *      When used with VM_MAPTYPE_VPAGETABLE, avail_ssize stores the
 148  *      page directory index.
 149  */
 150 struct vm_map_entry {
 151         struct vm_map_entry *prev;      /* previous entry */
 152         struct vm_map_entry *next;      /* next entry */
 153         RB_ENTRY(vm_map_entry) rb_entry;
 154         vm_offset_t start;              /* start address */
 155         vm_offset_t end;                /* end address */
 156         union vm_map_aux aux;           /* auxillary data */
 157         union vm_map_object object;     /* object I point to */
 158         vm_ooffset_t offset;            /* offset into object */
 159         vm_eflags_t eflags;             /* map entry flags */
 160         vm_maptype_t maptype;           /* type of VM mapping */
 161         vm_prot_t protection;           /* protection code */
 162         vm_prot_t max_protection;       /* maximum protection */
 163         vm_inherit_t inheritance;       /* inheritance */
 164         int wired_count;                /* can be paged if = 0 */
 165 };
 166
 167 #define MAP_ENTRY_NOSYNC                0x0001
 168 #define MAP_ENTRY_STACK                 0x0002
 169 #define MAP_ENTRY_COW                   0x0004
 170 #define MAP_ENTRY_NEEDS_COPY            0x0008
 171 #define MAP_ENTRY_NOFAULT               0x0010
 172 #define MAP_ENTRY_USER_WIRED            0x0020
 173
 174 #define MAP_ENTRY_BEHAV_NORMAL          0x0000  /* default behavior */
 175 #define MAP_ENTRY_BEHAV_SEQUENTIAL      0x0040  /* expect sequential access */
 176 #define MAP_ENTRY_BEHAV_RANDOM          0x0080  /* expect random access */
 177 #define MAP_ENTRY_BEHAV_RESERVED        0x00C0  /* future use */
 178
 179 #define MAP_ENTRY_BEHAV_MASK            0x00C0
 180
 181 #define MAP_ENTRY_IN_TRANSITION         0x0100  /* entry being changed */
 182 #define MAP_ENTRY_NEEDS_WAKEUP          0x0200  /* waiter's in transition */
 183 #define MAP_ENTRY_NOCOREDUMP            0x0400  /* don't include in a core */
 184 #define MAP_ENTRY_KSTACK                0x0800  /* guarded kernel stack */
 185
 186 /*
 187  * flags for vm_map_[un]clip_range()
 188  */
 189 #define MAP_CLIP_NO_HOLES               0x0001
 190
 191 /*
 192  * This reserve count for vm_map_entry_reserve() should cover all nominal
 193  * single-insertion operations, including any necessary clipping.
 194  */
 195 #define MAP_RESERVE_COUNT       4
 196 #define MAP_RESERVE_SLOP        32
 197
 198 static __inline u_char
 199 vm_map_entry_behavior(struct vm_map_entry *entry)
 200 {
 201         return entry->eflags & MAP_ENTRY_BEHAV_MASK;
 202 }
 203
 204 static __inline void
 205 vm_map_entry_set_behavior(struct vm_map_entry *entry, u_char behavior)
 206 {
 207         entry->eflags = (entry->eflags & ~MAP_ENTRY_BEHAV_MASK) |
 208                 (behavior & MAP_ENTRY_BEHAV_MASK);
 209 }
 210
 211 /*
 212  * Maps are doubly-linked lists of map entries, kept sorted by address.
 213  * A single hint is provided to start searches again from the last
 214  * successful search, insertion, or removal.
 215  *
 216  * NOTE: The lock structure cannot be the first element of vm_map
 217  *       because this can result in a running lockup between two or more
 218  *       system processes trying to kmem_alloc_wait() due to kmem_alloc_wait()
 219  *       and free tsleep/waking up 'map' and the underlying lockmgr also
 220  *       sleeping and waking up on 'map'.  The lockup occurs when the map fills
 221  *       up.  The 'exec' map, for example.
 222  *
 223  * NOTE: The vm_map structure can be hard-locked with the lockmgr lock
 224  *       or soft-serialized with the token, or both.
 225  */
 226 struct vm_map {
 227         struct vm_map_entry header;     /* List of entries */
 228         RB_HEAD(vm_map_rb_tree, vm_map_entry) rb_root;
 229         struct lock lock;               /* Lock for map data */
 230         int nentries;                   /* Number of entries */
 231         vm_size_t size;                 /* virtual size */
 232         u_char system_map;              /* Am I a system map? */
 233         vm_map_entry_t hint;            /* hint for quick lookups */
 234         unsigned int timestamp;         /* Version number */
 235         vm_map_entry_t first_free;      /* First free space hint */
 236         vm_flags_t flags;               /* flags for this vm_map */
 237         struct pmap *pmap;              /* Physical map */
 238         u_int president_cache;          /* Remember president count */
 239         u_int president_ticks;          /* Save ticks for cache */
 240         struct lwkt_token token;        /* Soft serializer */
 241 #define min_offset              header.start
 242 #define max_offset              header.end
 243 };
 244
 245 /*
 246  * vm_flags_t values
 247  */
 248 #define MAP_WIREFUTURE          0x0001  /* wire all future pages */
 249
 250 /*
 251  * Shareable process virtual address space.
 252  *
 253  * Refd pointers from vmresident, proc
 254  */
 255 struct vmspace {
 256         struct vm_map vm_map;   /* VM address map */
 257         struct pmap vm_pmap;    /* private physical map */
 258         int vm_flags;
 259         caddr_t vm_shm;         /* SYS5 shared memory private data XXX */
 260 /* we copy from vm_startcopy to the end of the structure on fork */
 261 #define vm_startcopy vm_rssize
 262         segsz_t vm_rssize;      /* current resident set size in pages */
 263         segsz_t vm_swrss;       /* resident set size before last swap */
 264         segsz_t vm_tsize;       /* text size (pages) XXX */
 265         segsz_t vm_dsize;       /* data size (pages) XXX */
 266         segsz_t vm_ssize;       /* stack size (pages) */
 267         caddr_t vm_taddr;       /* user virtual address of text XXX */
 268         caddr_t vm_daddr;       /* user virtual address of data XXX */
 269         caddr_t vm_maxsaddr;    /* user VA at max stack growth */
 270         caddr_t vm_minsaddr;    /* user VA at max stack growth */
 271 #define vm_endcopy      vm_unused01
 272         int     vm_unused01;
 273         int     vm_unused02;
 274         int     vm_pagesupply;
 275         u_int   vm_holdcnt;     /* temporary hold count and exit sequencing */
 276         u_int   vm_refcnt;      /* normal ref count */
 277 };
 278
 279 #define VMSPACE_EXIT1           0x0001  /* partial exit */
 280 #define VMSPACE_EXIT2           0x0002  /* full exit */
 281
 282 #define VMSPACE_HOLDEXIT        0x80000000
 283
 284 /*
 285  * Resident executable holding structure.  A user program can take a snapshot
 286  * of just its VM address space (typically done just after dynamic link
 287  * libraries have completed loading) and register it as a resident
 288  * executable associated with the program binary's vnode, which is also
 289  * locked into memory.  Future execs of the vnode will start with a copy
 290  * of the resident vmspace instead of running the binary from scratch,
 291  * avoiding both the kernel ELF loader *AND* all shared library mapping and
 292  * relocation code, and will call a different entry point (the stack pointer
 293  * is reset to the top of the stack) supplied when the vmspace was registered.
 294  */
 295 struct vmresident {
 296         struct vnode    *vr_vnode;              /* associated vnode */
 297         TAILQ_ENTRY(vmresident) vr_link;        /* linked list of res sts */
 298         struct vmspace  *vr_vmspace;            /* vmspace to fork */
 299         intptr_t        vr_entry_addr;          /* registered entry point */
 300         struct sysentvec *vr_sysent;            /* system call vects */
 301         int             vr_id;                  /* registration id */
 302         int             vr_refs;                /* temporary refs */
 303 };
 304
 305 #ifdef _KERNEL
 306 /*
 307  *      Macros:         vm_map_lock, etc.
 308  *      Function:
 309  *              Perform locking on the data portion of a map.  Note that
 310  *              these macros mimic procedure calls returning void.  The
 311  *              semicolon is supplied by the user of these macros, not
 312  *              by the macros themselves.  The macros can safely be used
 313  *              as unbraced elements in a higher level statement.
 314  */
 315
 316 #define ASSERT_VM_MAP_LOCKED(map)       KKASSERT(lockowned(&(map)->lock))
 317
 318 #ifdef DIAGNOSTIC
 319 /* #define MAP_LOCK_DIAGNOSTIC 1 */
 320 #ifdef MAP_LOCK_DIAGNOSTIC
 321 #define vm_map_lock(map) \
 322         do { \
 323                 kprintf ("locking map LK_EXCLUSIVE: 0x%x\n", map); \
 324                 if (lockmgr(&(map)->lock, LK_EXCLUSIVE) != 0) { \
 325                         panic("vm_map_lock: failed to get lock"); \
 326                 } \
 327                 (map)->timestamp++; \
 328         } while(0)
 329 #else
 330 #define vm_map_lock(map) \
 331         do { \
 332                 if (lockmgr(&(map)->lock, LK_EXCLUSIVE) != 0) { \
 333                         panic("vm_map_lock: failed to get lock"); \
 334                 } \
 335                 (map)->timestamp++; \
 336         } while(0)
 337 #endif
 338 #else
 339 #define vm_map_lock(map) \
 340         do { \
 341                 lockmgr(&(map)->lock, LK_EXCLUSIVE); \
 342                 (map)->timestamp++; \
 343         } while(0)
 344 #endif /* DIAGNOSTIC */
 345
 346 #if defined(MAP_LOCK_DIAGNOSTIC)
 347 #define vm_map_unlock(map) \
 348         do { \
 349                 kprintf ("locking map LK_RELEASE: 0x%x\n", map); \
 350                 lockmgr(&(map)->lock, LK_RELEASE); \
 351         } while (0)
 352 #define vm_map_lock_read(map) \
 353         do { \
 354                 kprintf ("locking map LK_SHARED: 0x%x\n", map); \
 355                 lockmgr(&(map)->lock, LK_SHARED); \
 356         } while (0)
 357 #define vm_map_unlock_read(map) \
 358         do { \
 359                 kprintf ("locking map LK_RELEASE: 0x%x\n", map); \
 360                 lockmgr(&(map)->lock, LK_RELEASE); \
 361         } while (0)
 362 #else
 363 #define vm_map_unlock(map) \
 364         lockmgr(&(map)->lock, LK_RELEASE)
 365 #define vm_map_lock_read(map) \
 366         lockmgr(&(map)->lock, LK_SHARED)
 367 #define vm_map_unlock_read(map) \
 368         lockmgr(&(map)->lock, LK_RELEASE)
 369 #endif
 370
 371 #define vm_map_lock_read_try(map) \
 372         lockmgr(&(map)->lock, LK_SHARED | LK_NOWAIT)
 373
 374 static __inline__ int
 375 vm_map_lock_read_to(vm_map_t map)
 376 {
 377         int error;
 378
 379 #if defined(MAP_LOCK_DIAGNOSTIC)
 380         kprintf ("locking map LK_SHARED: 0x%x\n", map);
 381 #endif
 382         error = lockmgr(&(map)->lock, LK_SHARED | LK_TIMELOCK);
 383         return error;
 384 }
 385
 386 static __inline__ int
 387 vm_map_lock_upgrade(vm_map_t map) {
 388         int error;
 389 #if defined(MAP_LOCK_DIAGNOSTIC)
 390         kprintf("locking map LK_EXCLUPGRADE: 0x%x\n", map);
 391 #endif
 392         error = lockmgr(&map->lock, LK_EXCLUPGRADE);
 393         if (error == 0)
 394                 map->timestamp++;
 395         return error;
 396 }
 397
 398 #if defined(MAP_LOCK_DIAGNOSTIC)
 399 #define vm_map_lock_downgrade(map) \
 400         do { \
 401                 kprintf ("locking map LK_DOWNGRADE: 0x%x\n", map); \
 402                 lockmgr(&(map)->lock, LK_DOWNGRADE); \
 403         } while (0)
 404 #else
 405 #define vm_map_lock_downgrade(map) \
 406         lockmgr(&(map)->lock, LK_DOWNGRADE)
 407 #endif
 408
 409 #endif /* _KERNEL */
 410
 411 /*
 412  *      Functions implemented as macros
 413  */
 414 #define         vm_map_min(map)         ((map)->min_offset)
 415 #define         vm_map_max(map)         ((map)->max_offset)
 416 #define         vm_map_pmap(map)        ((map)->pmap)
 417
 418 /*
 419  * Must not block
 420  */
 421 static __inline struct pmap *
 422 vmspace_pmap(struct vmspace *vmspace)
 423 {
 424         return &vmspace->vm_pmap;
 425 }
 426
 427 /*
 428  * Caller must hold the vmspace->vm_map.token
 429  */
 430 static __inline long
 431 vmspace_resident_count(struct vmspace *vmspace)
 432 {
 433         return pmap_resident_count(vmspace_pmap(vmspace));
 434 }
 435
 436 /*
 437  * Calculates the proportional RSS and returning the
 438  * accrued result.  This is a loose value for statistics/display
 439  * purposes only and will only be updated if we can acquire
 440  * a non-blocking map lock.
 441  *
 442  * (used by userland or the kernel)
 443  */
 444 static __inline u_int
 445 vmspace_president_count(struct vmspace *vmspace)
 446 {
 447         vm_map_t map = &vmspace->vm_map;
 448         vm_map_entry_t cur;
 449         vm_object_t object;
 450         u_int count = 0;
 451         u_int n;
 452
 453 #ifdef _KERNEL
 454         if (map->president_ticks == ticks / hz || vm_map_lock_read_try(map))
 455                 return(map->president_cache);
 456 #endif
 457
 458         for (cur = map->header.next; cur != &map->header; cur = cur->next) {
 459                 switch(cur->maptype) {
 460                 case VM_MAPTYPE_NORMAL:
 461                 case VM_MAPTYPE_VPAGETABLE:
 462                         if ((object = cur->object.vm_object) == NULL)
 463                                 break;
 464                         if (object->type != OBJT_DEFAULT &&
 465                             object->type != OBJT_SWAP) {
 466                                 break;
 467                         }
 468                         /*
 469                          * synchronize non-zero case, contents of field
 470                          * can change at any time due to pmap ops.
 471                          */
 472                         if ((n = object->agg_pv_list_count) != 0) {
 473 #ifdef _KERNEL
 474                                 cpu_ccfence();
 475 #endif
 476                                 count += object->resident_page_count / n;
 477                         }
 478                         break;
 479                 default:
 480                         break;
 481                 }
 482         }
 483 #ifdef _KERNEL
 484         map->president_cache = count;
 485         map->president_ticks = ticks / hz;
 486         vm_map_unlock_read(map);
 487 #endif
 488
 489         return(count);
 490 }
 491
 492 /*
 493  * Number of kernel maps and entries to statically allocate, required
 494  * during boot to bootstrap the VM system.
 495  */
 496 #define MAX_KMAP        10
 497 #define MAX_MAPENT      (SMP_MAXCPU * 32 + 1024)
 498
 499 /*
 500  * Copy-on-write flags for vm_map operations
 501  */
 502 #define MAP_UNUSED_01           0x0001
 503 #define MAP_COPY_ON_WRITE       0x0002
 504 #define MAP_NOFAULT             0x0004
 505 #define MAP_PREFAULT            0x0008
 506 #define MAP_PREFAULT_PARTIAL    0x0010
 507 #define MAP_DISABLE_SYNCER      0x0020
 508 #define MAP_IS_STACK            0x0040
 509 #define MAP_IS_KSTACK           0x0080
 510 #define MAP_DISABLE_COREDUMP    0x0100
 511 #define MAP_PREFAULT_MADVISE    0x0200  /* from (user) madvise request */
 512 #define MAP_PREFAULT_RELOCK     0x0200
 513
 514 /*
 515  * vm_fault option flags
 516  */
 517 #define VM_FAULT_NORMAL         0x00    /* Nothing special */
 518 #define VM_FAULT_CHANGE_WIRING  0x01    /* Change the wiring as appropriate */
 519 #define VM_FAULT_USER_WIRE      0x02    /* Likewise, but for user purposes */
 520 #define VM_FAULT_BURST          0x04    /* Burst fault can be done */
 521 #define VM_FAULT_DIRTY          0x08    /* Dirty the page */
 522 #define VM_FAULT_UNSWAP         0x10    /* Remove backing store from the page */
 523 #define VM_FAULT_BURST_QUICK    0x20    /* Special case shared vm_object */
 524 #define VM_FAULT_WIRE_MASK      (VM_FAULT_CHANGE_WIRING|VM_FAULT_USER_WIRE)
 525
 526 #ifdef _KERNEL
 527
 528 boolean_t vm_map_check_protection (vm_map_t, vm_offset_t, vm_offset_t,
 529                 vm_prot_t, boolean_t);
 530 struct pmap;
 531 struct globaldata;
 532 void vm_map_entry_allocate_object(vm_map_entry_t);
 533 void vm_map_entry_reserve_cpu_init(struct globaldata *gd);
 534 int vm_map_entry_reserve(int);
 535 int vm_map_entry_kreserve(int);
 536 void vm_map_entry_release(int);
 537 void vm_map_entry_krelease(int);
 538 vm_map_t vm_map_create (vm_map_t, struct pmap *, vm_offset_t, vm_offset_t);
 539 int vm_map_delete (vm_map_t, vm_offset_t, vm_offset_t, int *);
 540 int vm_map_find (vm_map_t, void *, void *,
 541                  vm_ooffset_t, vm_offset_t *, vm_size_t,
 542                  vm_size_t,
 543                  boolean_t, vm_maptype_t,
 544                  vm_prot_t, vm_prot_t, int);
 545 int vm_map_findspace (vm_map_t, vm_offset_t, vm_size_t, vm_size_t,
 546                       int, vm_offset_t *);
 547 vm_offset_t vm_map_hint(struct proc *, vm_offset_t, vm_prot_t);
 548 int vm_map_inherit (vm_map_t, vm_offset_t, vm_offset_t, vm_inherit_t);
 549 void vm_map_init (struct vm_map *, vm_offset_t, vm_offset_t, pmap_t);
 550 int vm_map_insert (vm_map_t, int *, void *, void *,
 551                    vm_ooffset_t, vm_offset_t, vm_offset_t,
 552                    vm_maptype_t,
 553                    vm_prot_t, vm_prot_t, int);
 554 int vm_map_lookup (vm_map_t *, vm_offset_t, vm_prot_t, vm_map_entry_t *, vm_object_t *,
 555     vm_pindex_t *, vm_prot_t *, boolean_t *);
 556 void vm_map_lookup_done (vm_map_t, vm_map_entry_t, int);
 557 boolean_t vm_map_lookup_entry (vm_map_t, vm_offset_t, vm_map_entry_t *);
 558 int vm_map_wire (vm_map_t, vm_offset_t, vm_offset_t, int);
 559 int vm_map_unwire (vm_map_t, vm_offset_t, vm_offset_t, boolean_t);
 560 int vm_map_clean (vm_map_t, vm_offset_t, vm_offset_t, boolean_t, boolean_t);
 561 int vm_map_protect (vm_map_t, vm_offset_t, vm_offset_t, vm_prot_t, boolean_t);
 562 int vm_map_remove (vm_map_t, vm_offset_t, vm_offset_t);
 563 void vm_map_startup (void);
 564 int vm_map_submap (vm_map_t, vm_offset_t, vm_offset_t, vm_map_t);
 565 int vm_map_madvise (vm_map_t, vm_offset_t, vm_offset_t, int, off_t);
 566 void vm_map_simplify_entry (vm_map_t, vm_map_entry_t, int *);
 567 void vm_init2 (void);
 568 int vm_uiomove (vm_map_t, vm_object_t, off_t, int, vm_offset_t, int *);
 569 int vm_map_stack (vm_map_t, vm_offset_t, vm_size_t, int,
 570                   vm_prot_t, vm_prot_t, int);
 571 int vm_map_growstack (struct proc *p, vm_offset_t addr);
 572 int vmspace_swap_count (struct vmspace *vmspace);
 573 int vmspace_anonymous_count (struct vmspace *vmspace);
 574 void vm_map_set_wired_quick(vm_map_t map, vm_offset_t addr, vm_size_t size, int *);
 575 void vm_map_transition_wait(vm_map_t map);
 576
 577 #if defined(__x86_64__) && defined(_KERNEL_VIRTUAL)
 578 int vkernel_module_memory_alloc(vm_offset_t *, size_t);
 579 void vkernel_module_memory_free(vm_offset_t, size_t);
 580 #endif
 581
 582 #endif
 583 #endif                          /* _VM_VM_MAP_H_ */