sys/vm/vm_extern.h

   1 /*-
   2  * Copyright (c) 1992, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)vm_extern.h 8.2 (Berkeley) 1/12/94
  34  * $FreeBSD: src/sys/vm/vm_extern.h,v 1.46.2.3 2003/01/13 22:51:17 dillon Exp $
  35  * $DragonFly: src/sys/vm/vm_extern.h,v 1.27 2007/04/30 07:18:57 dillon Exp $
  36  */
  37
  38 #ifndef _VM_VM_EXTERN_H_
  39 #define _VM_VM_EXTERN_H_
  40
  41 #ifndef _SYS_TYPES_H_
  42 #include <sys/types.h>
  43 #endif
  44 #ifndef _VM_VM_MAP_H_
  45 #include <vm/vm_map.h>
  46 #endif
  47 #ifndef _VM_VM_KERN_H_
  48 #include <vm/vm_kern.h>
  49 #endif
  50 #ifndef _MACHINE_TYPES_H_
  51 #include <machine/types.h>
  52 #endif
  53
  54 struct buf;
  55 struct proc;
  56 struct vmspace;
  57 struct vmtotal;
  58 struct mount;
  59 struct vmspace;
  60 struct vnode;
  61
  62 #ifdef _KERNEL
  63
  64 extern int vkernel_enable;
  65
  66 #ifdef TYPEDEF_FOR_UAP
  67 int getpagesize (struct proc * p, void *, int *);
  68 int madvise (struct proc *, void *, int *);
  69 int mincore (struct proc *, void *, int *);
  70 int mprotect (struct proc *, void *, int *);
  71 int msync (struct proc *, void *, int *);
  72 int munmap (struct proc *, void *, int *);
  73 int obreak (struct proc *, void *, int *);
  74 int sbrk (struct proc *, void *, int *);
  75 int sstk (struct proc *, void *, int *);
  76 int swapon (struct proc *, void *, int *);
  77 #endif
  78
  79 int grow (struct proc *, size_t);
  80 int kernacc(c_caddr_t, int, int);
  81 vm_offset_t kmem_alloc3 (vm_map_t, vm_size_t, int flags);
  82 vm_offset_t kmem_alloc_nofault (vm_map_t, vm_size_t, vm_size_t);
  83 vm_offset_t kmem_alloc_pageable (vm_map_t, vm_size_t);
  84 vm_offset_t kmem_alloc_wait (vm_map_t, vm_size_t);
  85 vm_offset_t kmem_alloc_attr(vm_map_t map, vm_size_t size, int flags,
  86         vm_paddr_t low, vm_paddr_t high, vm_memattr_t memattr);
  87 void kmem_free (vm_map_t, vm_offset_t, vm_size_t);
  88 void kmem_free_wakeup (vm_map_t, vm_offset_t, vm_size_t);
  89 void kmem_init (void);
  90 void kmem_suballoc (vm_map_t, vm_map_t, vm_offset_t *, vm_offset_t *, vm_size_t);
  91 void munmapfd (struct proc *, int);
  92 int swaponvp (struct thread *, struct vnode *, u_quad_t);
  93 void swapout_procs (int);
  94 int useracc(c_caddr_t, int, int);
  95 int vm_fault (vm_map_t, vm_offset_t, vm_prot_t, int);
  96 vm_page_t vm_fault_page (vm_map_t, vm_offset_t, vm_prot_t, int, int *);
  97 vm_page_t vm_fault_page_quick (vm_offset_t, vm_prot_t, int *);
  98 void vm_fault_copy_entry (vm_map_t, vm_map_t, vm_map_entry_t, vm_map_entry_t);
  99 int vm_fault_quick_hold_pages(vm_map_t map, vm_offset_t addr, vm_size_t len,
 100     vm_prot_t prot, vm_page_t *ma, int max_count);
 101 void vm_fault_unwire (vm_map_t, vm_map_entry_t);
 102 int vm_fault_wire (vm_map_t, vm_map_entry_t, boolean_t, int);
 103 void vm_fork (struct proc *, struct proc *, int);
 104 int vm_test_nominal (void);
 105 void vm_wait_nominal (void);
 106 void vm_init_limits(struct proc *);
 107
 108 int vm_mmap (vm_map_t, vm_offset_t *, vm_size_t, vm_prot_t, vm_prot_t, int, void *, vm_ooffset_t);
 109 int vm_mmap_to_errno(int rv);
 110 vm_offset_t kmem_alloc_contig (vm_offset_t, vm_paddr_t, vm_paddr_t, vm_offset_t);
 111 void vm_set_page_size (void);
 112 struct vmspace *vmspace_alloc (vm_offset_t, vm_offset_t);
 113 void vmspace_initrefs (struct vmspace *);
 114 int vmspace_getrefs (struct vmspace *);
 115 void vmspace_hold (struct vmspace *);
 116 void vmspace_drop (struct vmspace *);
 117 void vmspace_ref (struct vmspace *);
 118 void vmspace_rel (struct vmspace *);
 119 void vmspace_relexit (struct vmspace *);
 120 void vmspace_exitfree (struct proc *);
 121 void *kmem_alloc_swapbacked(kmem_anon_desc_t *kp, vm_size_t size);
 122 void kmem_free_swapbacked(kmem_anon_desc_t *kp);
 123
 124 struct vmspace *vmspace_fork (struct vmspace *);
 125 void vmspace_exec (struct proc *, struct vmspace *);
 126 void vmspace_unshare (struct proc *);
 127 void vslock (caddr_t, u_int);
 128 void vsunlock (caddr_t, u_int);
 129 void vm_object_print (/* db_expr_t */ long, boolean_t, /* db_expr_t */ long,
 130                           char *);
 131
 132 static __inline
 133 vm_offset_t
 134 kmem_alloc (vm_map_t map, vm_size_t size)
 135 {
 136         return(kmem_alloc3(map, size, 0));
 137 }
 138
 139 static __inline
 140 vm_offset_t
 141 kmem_alloc_stack (vm_map_t map, vm_size_t size)
 142 {
 143         return(kmem_alloc3(map, size, KM_STACK));
 144 }
 145
 146 #endif                          /* _KERNEL */
 147
 148 #endif                          /* !_VM_VM_EXTERN_H_ */