1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#ifndef _VM_FAULTCODE_H
#define _VM_FAULTCODE_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* This file describes the data type returned by vm routines
* which handle faults.
*
* If FC_CODE(fc) == FC_OBJERR, then FC_ERRNO(fc) contains the errno value
* returned by the underlying object mapped at the fault address.
*/
#define FC_HWERR 0x1 /* misc hardware error (e.g. bus timeout) */
#define FC_ALIGN 0x2 /* hardware alignment error */
#define FC_OBJERR 0x3 /* underlying object returned errno value */
#define FC_PROT 0x4 /* access exceeded current protections */
#define FC_NOMAP 0x5 /* no mapping at the fault address */
#define FC_NOSUPPORT 0x6 /* operation not supported by driver */
#define FC_MAKE_ERR(e) (((e) << 8) | FC_OBJERR)
#define FC_CODE(fc) ((fc) & 0xff)
#define FC_ERRNO(fc) ((unsigned)(fc) >> 8)
#ifndef _ASM
typedef int faultcode_t; /* type returned by vm fault routines */
extern int fc_decode(faultcode_t);
#endif /* _ASM */
#ifdef __cplusplus
}
#endif
#endif /* _VM_FAULTCODE_H */
|
