1/*	$OpenBSD: vmparam.h,v 1.20 2024/02/01 00:39:57 deraadt Exp $	*/
2/*	$NetBSD: vmparam.h,v 1.18 2003/05/21 18:04:44 thorpej Exp $	*/
3
4/*
5 * Copyright (c) 2001, 2002 Wasabi Systems, Inc.
6 * All rights reserved.
7 *
8 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
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 for the NetBSD Project by
21 *	Wasabi Systems, Inc.
22 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
23 *    or promote products derived from this software without specific prior
24 *    written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39#ifndef _ARM_VMPARAM_H_
40#define	_ARM_VMPARAM_H_
41
42/*
43 * Virtual Memory parameters common to all arm32 platforms.
44 */
45
46#define	USRSTACK	VM_MAXUSER_ADDRESS
47#define	KERNBASE	VM_MAXUSER_ADDRESS
48
49#define	MAXTSIZ		(128*1024*1024)		/* max text size */
50
51#ifndef	DFLDSIZ
52#define	DFLDSIZ		(128*1024*1024)		/* initial data size limit */
53#endif
54#ifndef	MAXDSIZ
55#define	MAXDSIZ		(512*1024*1024)		/* max data size */
56#endif
57#ifndef BRKSIZ
58#define	BRKSIZ		MAXDSIZ			/* heap gap size */
59#endif
60#ifndef	DFLSSIZ
61#define	DFLSSIZ		(2*1024*1024)		/* initial stack size limit */
62#endif
63#ifndef	MAXSSIZ
64#define	MAXSSIZ		(32*1024*1024)		/* max stack size */
65#endif
66
67#define STACKGAP_RANDOM	256*1024
68
69/*
70 * Size of SysV shared memory map
71 */
72#ifndef SHMMAXPGS
73#define	SHMMAXPGS	1024
74#endif
75
76/*
77 * Mach derived constants
78 */
79#define	VM_MIN_ADDRESS		((vaddr_t) PAGE_SIZE)
80#define	VM_MAXUSER_ADDRESS	((vaddr_t) ARM_KERNEL_BASE)
81#define	VM_MAX_ADDRESS		VM_MAXUSER_ADDRESS
82
83#define	VM_MIN_KERNEL_ADDRESS	((vaddr_t) ARM_KERNEL_BASE)
84
85#endif /* _ARM_VMPARAM_H_ */
86