vmparam.h revision 84183 
1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 * Copyright (c) 1994 John S. Dyson
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * William Jolitz.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *      This product includes software developed by the University of
21 *      California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 *    may be used to endorse or promote products derived from this software
24 *    without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 *	from: @(#)vmparam.h     5.9 (Berkeley) 5/12/91
39 *	from: FreeBSD: src/sys/i386/include/vmparam.h,v 1.33 2000/03/30
40 * $FreeBSD: head/sys/sparc64/include/vmparam.h 84183 2001-09-30 19:03:22Z jake $
41 */
42
43
44#ifndef	_MACHINE_VMPARAM_H_
45#define	_MACHINE_VMPARAM_H_
46
47/*
48 * Virtual memory related constants, all in bytes
49 */
50#ifndef MAXTSIZ
51#define	MAXTSIZ		(1*1024*1024*1024)	/* max text size */
52#endif
53#ifndef DFLDSIZ
54#define	DFLDSIZ		(128*1024*1024)		/* initial data size limit */
55#endif
56#ifndef MAXDSIZ
57#define	MAXDSIZ		(1*1024*1024*1024)	/* max data size */
58#endif
59#ifndef	DFLSSIZ
60#define	DFLSSIZ		(128*1024*1024)		/* initial stack size limit */
61#endif
62#ifndef	MAXSSIZ
63#define	MAXSSIZ		(1*1024*1024*1024)	/* max stack size */
64#endif
65#ifndef	SGROWSIZ
66#define	SGROWSIZ	(128*1024)		/* amount to grow stack */
67#endif
68
69/*
70 * The time for a process to be blocked before being very swappable.
71 * This is a number of seconds which the system takes as being a non-trivial
72 * amount of real time.  You probably shouldn't change this;
73 * it is used in subtle ways (fractions and multiples of it are, that is, like
74 * half of a ``long time'', almost a long time, etc.)
75 * It is related to human patience and other factors which don't really
76 * change over time.
77 */
78#define	MAXSLP			20
79
80#define	VM_MAXUSER_ADDRESS	(0x7fe00000000)
81
82#define	USRSTACK		VM_MAXUSER_ADDRESS
83
84#define	VM_MIN_ADDRESS		(0x100000)
85
86/*
87 * Virtual size (bytes) for various kernel submaps.
88 */
89#ifndef	VM_KMEM_SIZE
90#define	VM_KMEM_SIZE		(12*1024*1024)
91#endif
92
93#define	VM_MIN_KERNEL_ADDRESS	(0xc0000000)
94#define	VM_MAX_KERNEL_ADDRESS	(0xffffe000)
95
96#define	KERNBASE		(0xc0000000)
97
98/*
99 * Initial pagein size of beginning of executable file.
100 */
101#ifndef	VM_INITIAL_PAGEIN
102#define	VM_INITIAL_PAGEIN	16
103#endif
104
105#endif /* !_MACHINE_VMPARAM_H_ */
106