Annotation of sys/uvm/uvm_fault.h, Revision 1.1.1.1
1.1 nbrk 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_ */
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