1 /* $OpenBSD: uvm_fault.h,v 1.12 2002/03/14 01:27:18 millert Exp $ */
2 /* $NetBSD: uvm_fault.h,v 1.14 2000/06/26 14:21:17 mrg Exp $ */
3
4 /*
5 *
6 * Copyright (c) 1997 Charles D. Cranor and Washington University.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by Charles D. Cranor and
20 * Washington University.
21 * 4. The name of the author may not be used to endorse or promote products
22 * derived from this software without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
26 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
33 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 *
35 * from: Id: uvm_fault.h,v 1.1.2.2 1997/12/08 16:07:12 chuck Exp
36 */
37
38 #ifndef _UVM_UVM_FAULT_H_
39 #define _UVM_UVM_FAULT_H_
40
41 /*
42 * fault types
43 */
44
45 #define VM_FAULT_INVALID ((vm_fault_t) 0x0) /* invalid mapping */
46 #define VM_FAULT_PROTECT ((vm_fault_t) 0x1) /* protection */
47 #define VM_FAULT_WIRE ((vm_fault_t) 0x2) /* wire mapping */
48
49 /*
50 * fault data structures
51 */
52
53 /*
54 * uvm_faultinfo: to load one of these fill in all orig_* fields and
55 * then call uvmfault_lookup on it.
56 */
57
58
59 struct uvm_faultinfo {
60 vm_map_t orig_map; /* IN: original map */
61 vaddr_t orig_rvaddr; /* IN: original rounded VA */
62 vsize_t orig_size; /* IN: original size of interest */
63 vm_map_t map; /* map (could be a submap) */
64 unsigned int mapv; /* map's version number */
65 vm_map_entry_t entry; /* map entry (from 'map') */
66 vsize_t size; /* size of interest */
67 };
68
69 #ifdef _KERNEL
70
71 /*
72 * fault prototypes
73 */
74
75
76 int uvmfault_anonget(struct uvm_faultinfo *, struct vm_amap *,
77 struct vm_anon *);
78
79 int uvm_fault_wire(vm_map_t, vaddr_t, vaddr_t, vm_prot_t);
80 void uvm_fault_unwire(vm_map_t, vaddr_t, vaddr_t);
81 void uvm_fault_unwire_locked(vm_map_t, vaddr_t, vaddr_t);
82
83 #endif /* _KERNEL */
84
85 #endif /* _UVM_UVM_FAULT_H_ */