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  */
  32
  33 #ifndef _VM_VM_EXTERN_H_
  34 #define _VM_VM_EXTERN_H_
  35
  36 #ifndef _SYS_TYPES_H_
  37 #include <sys/types.h>
  38 #endif
  39 #ifndef _VM_VM_MAP_H_
  40 #include <vm/vm_map.h>
  41 #endif
  42 #ifndef _VM_VM_KERN_H_
  43 #include <vm/vm_kern.h>
  44 #endif
  45 #ifndef _MACHINE_TYPES_H_
  46 #include <machine/types.h>
  47 #endif
  48
  49 struct buf;
  50 struct proc;
  51 struct vmspace;
  52 struct vmtotal;
  53 struct mount;
  54 struct vmspace;
  55 struct vnode;
  56
  57 #ifdef _KERNEL
  58
  59 extern int vkernel_enable;
  60
  61 int grow (struct proc *, size_t);
  62 int kernacc(c_caddr_t, int, int);
  63 vm_offset_t kmem_alloc3 (vm_map_t, vm_size_t, vm_subsys_t id, int flags);
  64 vm_offset_t kmem_alloc_nofault (vm_map_t, vm_size_t, vm_subsys_t id, vm_size_t);
  65 vm_offset_t kmem_alloc_pageable (vm_map_t, vm_size_t, vm_subsys_t id);
  66 vm_offset_t kmem_alloc_wait (vm_map_t, vm_size_t, vm_subsys_t id);
  67 vm_offset_t kmem_alloc_attr(vm_map_t map, vm_size_t size, vm_subsys_t id,
  68         int flags, vm_paddr_t low, vm_paddr_t high, vm_memattr_t memattr);
  69 void kmem_free (vm_map_t, vm_offset_t, vm_size_t);
  70 void kmem_free_wakeup (vm_map_t, vm_offset_t, vm_size_t);
  71 void kmem_init (void);
  72 void kmem_suballoc (vm_map_t, vm_map_t, vm_offset_t *, vm_offset_t *, vm_size_t);
  73 void munmapfd (struct proc *, int);
  74 int swaponvp (struct thread *, struct vnode *, u_quad_t);
  75 void swapout_procs (int);
  76 int useracc(c_caddr_t, int, int);
  77 int vm_fault (vm_map_t, vm_offset_t, vm_prot_t, int);
  78 vm_page_t vm_fault_page (vm_map_t, vm_offset_t, vm_prot_t, int, int *, int *);
  79 vm_page_t vm_fault_page_quick (vm_offset_t, vm_prot_t, int *, int *);
  80 void vm_fault_copy_entry (vm_map_t, vm_map_t, vm_map_entry_t, vm_map_entry_t);
  81 void vm_fault_unwire (vm_map_t, vm_map_entry_t);
  82 int vm_fault_wire (vm_map_t, vm_map_entry_t, boolean_t, int);
  83 void vm_fork (struct proc *, struct proc *, int);
  84 int vm_test_nominal (void);
  85 void vm_wait_nominal (void);
  86 void vm_init_limits(struct proc *);
  87
  88 int vm_mmap (vm_map_t, vm_offset_t *, vm_size_t, vm_prot_t, vm_prot_t, int, void *, vm_ooffset_t);
  89 int vm_mmap_to_errno(int rv);
  90 vm_offset_t kmem_alloc_contig (vm_offset_t, vm_paddr_t, vm_paddr_t, vm_offset_t);
  91 void vm_set_page_size (void);
  92 struct vmspace *vmspace_alloc (vm_offset_t, vm_offset_t);
  93 void vmspace_initrefs (struct vmspace *);
  94 int vmspace_getrefs (struct vmspace *);
  95 void vmspace_hold (struct vmspace *);
  96 void vmspace_drop (struct vmspace *);
  97 void vmspace_ref (struct vmspace *);
  98 void vmspace_rel (struct vmspace *);
  99 void vmspace_relexit (struct vmspace *);
 100 void vmspace_exitfree (struct proc *);
 101 void *kmem_alloc_swapbacked(kmem_anon_desc_t *kp, vm_size_t size,
 102                         vm_subsys_t id);
 103 void kmem_free_swapbacked(kmem_anon_desc_t *kp);
 104
 105 struct vmspace *vmspace_fork (struct vmspace *);
 106 void vmspace_exec (struct proc *, struct vmspace *);
 107 void vmspace_unshare (struct proc *);
 108 void vslock (caddr_t, u_int);
 109 void vsunlock (caddr_t, u_int);
 110 void vm_object_print (/* db_expr_t */ long, boolean_t, /* db_expr_t */ long,
 111                           char *);
 112
 113 static __inline
 114 vm_offset_t
 115 kmem_alloc (vm_map_t map, vm_size_t size, vm_subsys_t id)
 116 {
 117         return(kmem_alloc3(map, size, id, 0));
 118 }
 119
 120 static __inline
 121 vm_offset_t
 122 kmem_alloc_stack (vm_map_t map, vm_size_t size, int kmflags)
 123 {
 124         return(kmem_alloc3(map, size, VM_SUBSYS_STACK, kmflags|KM_STACK));
 125 }
 126
 127 #endif                          /* _KERNEL */
 128
 129 #endif                          /* !_VM_VM_EXTERN_H_ */