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 | |
43 | struct 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 | |
59 | int uvmfault_anonget(struct uvm_faultinfo *, struct vm_amap *, |
60 | struct vm_anon *); |
61 | |
62 | int uvm_fault_wire(struct vm_map *, vaddr_t, vaddr_t, vm_prot_t, int); |
63 | void uvm_fault_unwire(struct vm_map *, vaddr_t, vaddr_t); |
64 | void uvm_fault_unwire_locked(struct vm_map *, vaddr_t, vaddr_t); |
65 | |
66 | #endif /* _KERNEL */ |
67 | |
68 | #endif /* _UVM_UVM_FAULT_H_ */ |
69 | |