1/* $NetBSD: uvm_fault.h,v 1.20 2011/02/02 15:13:34 chuck Exp $ */
2
3/*
4 * Copyright (c) 1997 Charles D. Cranor and Washington University.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * from: Id: uvm_fault.h,v 1.1.2.2 1997/12/08 16:07:12 chuck Exp
28 */
29
30#ifndef _UVM_UVM_FAULT_H_
31#define _UVM_UVM_FAULT_H_
32
33/*
34 * fault data structures
35 */
36
37/*
38 * uvm_faultinfo: to load one of these fill in all orig_* fields and
39 * then call uvmfault_lookup on it.
40 */
41
42
43struct uvm_faultinfo {
44 struct vm_map *orig_map; /* IN: original map */
45 vaddr_t orig_rvaddr; /* IN: original rounded VA */
46 vsize_t orig_size; /* IN: original size of interest */
47 struct vm_map *map; /* map (could be a submap) */
48 unsigned int mapv; /* map's version number */
49 struct vm_map_entry *entry; /* map entry (from 'map') */
50 vsize_t size; /* size of interest */
51};
52
53#ifdef _KERNEL
54
55/*
56 * fault prototypes
57 */
58
59int uvmfault_anonget(struct uvm_faultinfo *, struct vm_amap *,
60 struct vm_anon *);
61
62int uvm_fault_wire(struct vm_map *, vaddr_t, vaddr_t, vm_prot_t, int);
63void uvm_fault_unwire(struct vm_map *, vaddr_t, vaddr_t);
64void uvm_fault_unwire_locked(struct vm_map *, vaddr_t, vaddr_t);
65
66#endif /* _KERNEL */
67
68#endif /* _UVM_UVM_FAULT_H_ */
69