vm.h revision 1542 
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 */
35
36#ifndef VM_H
37#define VM_H
38
39typedef int vm_inherit_t;		/* XXX: inheritance codes */
40
41union vm_map_object;
42typedef union vm_map_object vm_map_object_t;
43
44struct vm_map_entry;
45typedef struct vm_map_entry *vm_map_entry_t;
46
47struct vm_map;
48typedef struct vm_map *vm_map_t;
49
50struct vm_object;
51typedef struct vm_object *vm_object_t;
52
53struct vm_page;
54typedef struct vm_page  *vm_page_t;
55
56struct pager_struct;
57typedef struct pager_struct *vm_pager_t;
58
59#include <sys/vmmeter.h>
60#include <sys/queue.h>
61#include <vm/vm_param.h>
62#include <vm/lock.h>
63#include <vm/vm_prot.h>
64#include <vm/vm_inherit.h>
65#include <vm/vm_map.h>
66#include <vm/vm_object.h>
67#include <vm/pmap.h>
68#include <vm/vm_extern.h>
69
70/*
71 * Shareable process virtual address space.
72 * May eventually be merged with vm_map.
73 * Several fields are temporary (text, data stuff).
74 */
75struct vmspace {
76	struct	vm_map vm_map;	/* VM address map */
77	struct	pmap vm_pmap;	/* private physical map */
78	int	vm_refcnt;	/* number of references */
79	caddr_t	vm_shm;		/* SYS5 shared memory private data XXX */
80/* we copy from vm_startcopy to the end of the structure on fork */
81#define vm_startcopy vm_rssize
82	segsz_t vm_rssize; 	/* current resident set size in pages */
83	segsz_t vm_swrss;	/* resident set size before last swap */
84	segsz_t vm_tsize;	/* text size (pages) XXX */
85	segsz_t vm_dsize;	/* data size (pages) XXX */
86	segsz_t vm_ssize;	/* stack size (pages) */
87	caddr_t	vm_taddr;	/* user virtual address of text XXX */
88	caddr_t	vm_daddr;	/* user virtual address of data XXX */
89	caddr_t vm_maxsaddr;	/* user VA at max stack growth */
90};
91#endif /* VM_H */
92