kernel - Fix overflows in vm_zone.c
[dragonfly.git] / sys / vm / vm.h
CommitLineData
984263bc
MD
1/*
2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)vm.h 8.2 (Berkeley) 12/13/93
34 * @(#)vm_prot.h 8.1 (Berkeley) 6/11/93
35 * @(#)vm_inherit.h 8.1 (Berkeley) 6/11/93
36 *
37 * Copyright (c) 1987, 1990 Carnegie-Mellon University.
38 * All rights reserved.
39 *
40 * Authors: Avadis Tevanian, Jr., Michael Wayne Young
41 *
42 * Permission to use, copy, modify and distribute this software and
43 * its documentation is hereby granted, provided that both the copyright
44 * notice and this permission notice appear in all copies of the
45 * software, derivative works or modified versions, and any portions
46 * thereof, and that both notices appear in supporting documentation.
47 *
48 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
49 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
50 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
51 *
52 * Carnegie Mellon requests users of this software to return to
53 *
54 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
55 * School of Computer Science
56 * Carnegie Mellon University
57 * Pittsburgh PA 15213-3890
58 *
59 * any improvements or extensions that they make and grant Carnegie the
60 * rights to redistribute these changes.
61 *
62 * $FreeBSD: src/sys/vm/vm.h,v 1.16.2.1 2002/12/28 19:49:41 dillon Exp $
1b874851 63 * $DragonFly: src/sys/vm/vm.h,v 1.7 2006/09/11 20:25:31 dillon Exp $
984263bc
MD
64 */
65
1bd40720
MD
66#ifndef VM_VM_H_
67#define VM_VM_H_
68
69#ifndef _SYS_TYPES_H_
70#include <sys/types.h>
71#endif
984263bc
MD
72
73typedef char vm_inherit_t; /* inheritance codes */
74
75#define VM_INHERIT_SHARE ((vm_inherit_t) 0)
76#define VM_INHERIT_COPY ((vm_inherit_t) 1)
77#define VM_INHERIT_NONE ((vm_inherit_t) 2)
78#define VM_INHERIT_DEFAULT VM_INHERIT_COPY
79
80typedef u_char vm_prot_t; /* protection codes */
81
82#define VM_PROT_NONE ((vm_prot_t) 0x00)
83#define VM_PROT_READ ((vm_prot_t) 0x01)
84#define VM_PROT_WRITE ((vm_prot_t) 0x02)
85#define VM_PROT_EXECUTE ((vm_prot_t) 0x04)
86#define VM_PROT_OVERRIDE_WRITE ((vm_prot_t) 0x08) /* copy-on-write */
b12defdc 87#define VM_PROT_NOSYNC ((vm_prot_t) 0x10)
984263bc
MD
88
89#define VM_PROT_RW (VM_PROT_READ|VM_PROT_WRITE)
90#define VM_PROT_ALL (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE)
91#define VM_PROT_DEFAULT VM_PROT_ALL
92
1b874851
MD
93typedef u_char vm_maptype_t; /* type of vm_map_entry */
94
95#define VM_MAPTYPE_UNSPECIFIED 0
96#define VM_MAPTYPE_NORMAL 1
97#define VM_MAPTYPE_VPAGETABLE 2
98#define VM_MAPTYPE_SUBMAP 3
99
984263bc
MD
100union vm_map_object;
101typedef union vm_map_object vm_map_object_t;
102
103struct vm_map_entry;
104typedef struct vm_map_entry *vm_map_entry_t;
105
106struct vm_map;
107typedef struct vm_map *vm_map_t;
108
109struct vm_object;
110typedef struct vm_object *vm_object_t;
111
984263bc 112/*
03d6a592 113 * This is also defined in vm/vm_page.h.
984263bc 114 */
03d6a592
MD
115#ifndef __VM_PAGE_T_DEFINED__
116#define __VM_PAGE_T_DEFINED__
984263bc
MD
117struct vm_page;
118typedef struct vm_page *vm_page_t;
119#endif
120
1bd40720 121#endif /* VM_VM_H_ */