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 vnode;
  55
  56 #ifdef _KERNEL
  57
  58 extern int vkernel_enable;
  59
  60 int grow(struct proc *, size_t);
  61 int kernacc(c_caddr_t, int, int);
  62 vm_offset_t kmem_alloc3(struct vm_map *, vm_size_t,
  63                         vm_subsys_t id, int flags);
  64 vm_offset_t kmem_alloc_nofault(struct vm_map *, vm_size_t,
  65                         vm_subsys_t id, vm_size_t);
  66 vm_offset_t kmem_alloc_pageable(struct vm_map *, vm_size_t,
  67                         vm_subsys_t id);
  68 vm_offset_t kmem_alloc_wait(struct vm_map *, vm_size_t,
  69                         vm_subsys_t id);
  70 vm_offset_t kmem_alloc_attr(struct vm_map *map, vm_size_t size,
  71                         vm_subsys_t id, int flags,
  72                         vm_paddr_t low, vm_paddr_t high, vm_memattr_t memattr);
  73 void kmem_free(struct vm_map *, vm_offset_t, vm_size_t);
  74 void kmem_free_wakeup(struct vm_map *, vm_offset_t, vm_size_t);
  75 void kmem_init(void);
  76 void kmem_suballoc(struct vm_map *, struct vm_map *,
  77                         vm_offset_t *, vm_offset_t *, vm_size_t);
  78 void munmapfd(struct proc *, int);
  79 int swaponvp(struct thread *, struct vnode *, u_quad_t);
  80 int useracc(c_caddr_t, int, int);
  81 int vm_fault(struct vm_map *, vm_offset_t, vm_prot_t, int);
  82 int vm_fault_collapse(struct vm_map *, struct vm_map_entry *);
  83 vm_page_t vm_fault_page(struct vm_map *, vm_offset_t,
  84                         vm_prot_t, int, int *, int *);
  85 vm_page_t vm_fault_page_quick(vm_offset_t, vm_prot_t, int *, int *);
  86 void vm_fault_copy_entry(struct vm_map *, struct vm_map *,
  87                         struct vm_map_entry *, struct vm_map_entry *);
  88 void vm_fault_unwire(struct vm_map *, struct vm_map_entry *);
  89 int vm_fault_wire(struct vm_map *, struct vm_map_entry *, boolean_t, int);
  90 void vm_fork(struct proc *, struct proc *, struct lwp *, int);
  91 int vm_test_nominal(void);
  92 void vm_wait_nominal(void);
  93 void vm_init_limits(struct proc *);
  94
  95 int vm_mmap(struct vm_map *, vm_offset_t *, vm_size_t,
  96                         vm_prot_t, vm_prot_t, int, void *, vm_ooffset_t,
  97                         struct file *fp);
  98 int vm_mmap_to_errno(int rv);
  99 vm_offset_t kmem_alloc_contig(vm_offset_t, vm_paddr_t,
 100                         vm_paddr_t, vm_offset_t);
 101 void vm_set_page_size(void);
 102 struct vmspace *vmspace_alloc(vm_offset_t, vm_offset_t);
 103 void vmspace_initrefs(struct vmspace *);
 104 int vmspace_getrefs(struct vmspace *);
 105 void vmspace_hold(struct vmspace *);
 106 void vmspace_drop(struct vmspace *);
 107 void vmspace_ref(struct vmspace *);
 108 void vmspace_rel(struct vmspace *);
 109 void vmspace_relexit(struct vmspace *);
 110 void vmspace_exitfree(struct proc *);
 111 void *kmem_alloc_swapbacked(kmem_anon_desc_t *kp, vm_size_t size,
 112                         vm_subsys_t id);
 113 void kmem_free_swapbacked(kmem_anon_desc_t *kp);
 114
 115 struct vmspace *vmspace_fork(struct vmspace *origvm,
 116                         struct proc *p2, struct lwp *lp2);
 117 void vmspace_exec(struct proc *, struct vmspace *);
 118 void vmspace_unshare(struct proc *);
 119 void vslock(caddr_t, u_int);
 120 void vsunlock(caddr_t, u_int);
 121 void vm_object_print(/* db_expr_t */ long, boolean_t,
 122                         /* db_expr_t */ long, char *);
 123
 124 static __inline
 125 vm_offset_t
 126 kmem_alloc(struct vm_map *map, vm_size_t size, vm_subsys_t id)
 127 {
 128         return(kmem_alloc3(map, size, id, 0));
 129 }
 130
 131 static __inline
 132 vm_offset_t
 133 kmem_alloc_stack(struct vm_map *map, vm_size_t size, int kmflags)
 134 {
 135         return(kmem_alloc3(map, size, VM_SUBSYS_STACK, kmflags|KM_STACK));
 136 }
 137
 138 #endif                          /* _KERNEL */
 139
 140 #endif                          /* !_VM_VM_EXTERN_H_ */