xref: /xnu-11215/bsd/sys/vm.h (revision a5e72196)
1 /*
2  * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
3  *
4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5  *
6  * This file contains Original Code and/or Modifications of Original Code
7  * as defined in and that are subject to the Apple Public Source License
8  * Version 2.0 (the 'License'). You may not use this file except in
9  * compliance with the License. The rights granted to you under the License
10  * may not be used to create, or enable the creation or redistribution of,
11  * unlawful or unlicensed copies of an Apple operating system, or to
12  * circumvent, violate, or enable the circumvention or violation of, any
13  * terms of an Apple operating system software license agreement.
14  *
15  * Please obtain a copy of the License at
16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17  *
18  * The Original Code and all software distributed under the License are
19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23  * Please see the License for the specific language governing rights and
24  * limitations under the License.
25  *
26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27  */
28 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
29 /*
30  * Copyright (c) 1991, 1993
31  *	The Regents of the University of California.  All rights reserved.
32  *
33  * Redistribution and use in source and binary forms, with or without
34  * modification, are permitted provided that the following conditions
35  * are met:
36  * 1. Redistributions of source code must retain the above copyright
37  *    notice, this list of conditions and the following disclaimer.
38  * 2. Redistributions in binary form must reproduce the above copyright
39  *    notice, this list of conditions and the following disclaimer in the
40  *    documentation and/or other materials provided with the distribution.
41  * 3. All advertising materials mentioning features or use of this software
42  *    must display the following acknowledgement:
43  *	This product includes software developed by the University of
44  *	California, Berkeley and its contributors.
45  * 4. Neither the name of the University nor the names of its contributors
46  *    may be used to endorse or promote products derived from this software
47  *    without specific prior written permission.
48  *
49  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59  * SUCH DAMAGE.
60  *
61  *	@(#)vm.h	8.5 (Berkeley) 5/11/95
62  */
63 /* HISTORY
64  *  05-Jun-95  Mac Gillon (mgillon) at NeXT
65  *      4.4 code uses this file to import MACH API
66  */
67 
68 #ifndef _SYS_VM_H
69 #define _SYS_VM_H
70 
71 #include <sys/appleapiopts.h>
72 #include <sys/cdefs.h>
73 
74 #ifdef BSD_KERNEL_PRIVATE
75 
76 /* Machine specific config stuff */
77 #if     defined(KERNEL) && !defined(MACH_USER_API)
78 #include <sys/vmmeter.h>
79 #include <sys/queue.h>
80 #include <mach/vm_param.h>
81 #endif
82 
83 /*
84  * Shareable process virtual address space.
85  * May eventually be merged with vm_map.
86  * Several fields are temporary (text, data stuff).
87  */
88 struct vmspace {
89 	int     vm_refcnt;      /* number of references */
90 	caddr_t vm_shm;         /* SYS5 shared memory private data XXX */
91 /* we copy from vm_startcopy to the end of the structure on fork */
92 #define vm_startcopy vm_rssize
93 	segsz_t vm_rssize;      /* current resident set size in pages */
94 	segsz_t vm_swrss;       /* resident set size before last swap */
95 	segsz_t vm_tsize;       /* text size (pages) XXX */
96 	segsz_t vm_dsize;       /* data size (pages) XXX */
97 	segsz_t vm_ssize;       /* stack size (pages) */
98 	caddr_t vm_taddr;       /* user virtual address of text XXX */
99 	caddr_t vm_daddr;       /* user virtual address of data XXX */
100 	caddr_t vm_maxsaddr;    /* user VA at max stack growth */
101 };
102 
103 #ifdef KERNEL
104 /* LP64 version of vmspace.  all pointers
105  * grow when we're dealing with a 64-bit process.
106  * WARNING - keep in sync with vmspace
107  */
108 
109 struct user32_vmspace {
110 	int             vm_refcnt;      /* number of references */
111 	uint32_t        vm_shm;                 /* SYS5 shared memory private data XXX */
112 	segsz_t         vm_rssize;              /* current resident set size in pages */
113 	segsz_t         vm_swrss;               /* resident set size before last swap */
114 	segsz_t         vm_tsize;               /* text size (pages) XXX */
115 	segsz_t         vm_dsize;               /* data size (pages) XXX */
116 	segsz_t         vm_ssize;               /* stack size (pages) */
117 	uint32_t        vm_taddr;       /* user virtual address of text XXX */
118 	uint32_t        vm_daddr;       /* user virtual address of data XXX */
119 	uint32_t vm_maxsaddr;   /* user VA at max stack growth */
120 };
121 struct user_vmspace {
122 	int             vm_refcnt;      /* number of references */
123 	user_addr_t     vm_shm __attribute((aligned(8)));                       /* SYS5 shared memory private data XXX */
124 	segsz_t         vm_rssize;              /* current resident set size in pages */
125 	segsz_t         vm_swrss;               /* resident set size before last swap */
126 	segsz_t         vm_tsize;               /* text size (pages) XXX */
127 	segsz_t         vm_dsize;               /* data size (pages) XXX */
128 	segsz_t         vm_ssize;               /* stack size (pages) */
129 	user_addr_t     vm_taddr __attribute((aligned(8)));       /* user virtual address of text XXX */
130 	user_addr_t     vm_daddr;       /* user virtual address of data XXX */
131 	user_addr_t vm_maxsaddr;        /* user VA at max stack growth */
132 };
133 
134 #endif /* KERNEL */
135 
136 #include <kern/thread.h>
137 
138 #else /* BSD_KERNEL_PRIVATE */
139 
140 #include <sys/_types/_caddr_t.h> /* caddr_t */
141 #include <sys/_types/_int32_t.h> /* int32_t */
142 
143 /* just to keep kinfo_proc happy */
144 /* NOTE: Pointer fields are size variant for LP64 */
145 struct vmspace {
146 	int32_t dummy;
147 	caddr_t dummy2;
148 	int32_t dummy3[5];
149 	caddr_t dummy4[3];
150 };
151 
152 #endif /* BSD_KERNEL_PRIVATE */
153 
154 #ifdef KERNEL
155 
156 __BEGIN_DECLS
157 struct proc *current_proc(void);
158 __END_DECLS
159 
160 #endif /* KERNEL */
161 
162 #endif /* _SYS_VM_H */
163