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