1/*	$OpenBSD: vmparam.h,v 1.10 2014/01/30 18:16:41 miod Exp $	*/
2/*	$NetBSD: vmparam.h,v 1.17 2006/03/04 01:55:03 uwe Exp $	*/
3
4/*-
5 * Copyright (c) 2002 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by UCHIYAMA Yasushi.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#ifndef _SH_VMPARAM_H_
34#define	_SH_VMPARAM_H_
35#include <sys/queue.h>
36
37/* Virtual address map. */
38#define	VM_MIN_ADDRESS		((vaddr_t)PAGE_SIZE)
39#define	VM_MAXUSER_ADDRESS	((vaddr_t)0x7ffff000)
40#define	VM_MAX_ADDRESS		((vaddr_t)0x7ffff000)
41#define	VM_MIN_KERNEL_ADDRESS	((vaddr_t)0xc0000000)
42#define	VM_MAX_KERNEL_ADDRESS	((vaddr_t)0xe0000000)
43
44/* map PIE below 4MB (non-pie link address) to avoid mmap pressure */
45#define VM_PIE_MIN_ADDR		PAGE_SIZE
46#define VM_PIE_MAX_ADDR		0x400000UL
47
48/* top of stack */
49#define	USRSTACK		VM_MAXUSER_ADDRESS
50
51/* Virtual memory resource limit. */
52#define	MAXTSIZ			(64 * 1024 * 1024)	/* max text size */
53#ifndef MAXDSIZ
54#define	MAXDSIZ			(512 * 1024 * 1024)	/* max data size */
55#endif
56#ifndef BRKSIZ
57#define	BRKSIZ			MAXDSIZ			/* heap gap size */
58#endif
59#ifndef	MAXSSIZ
60#define	MAXSSIZ			(32 * 1024 * 1024)	/* max stack size */
61#endif
62
63/* initial data size limit */
64#ifndef DFLDSIZ
65#define	DFLDSIZ			(128 * 1024 * 1024)
66#endif
67/* initial stack size limit */
68#ifndef	DFLSSIZ
69#define	DFLSSIZ			(2 * 1024 * 1024)
70#endif
71
72#define	STACKGAP_RANDOM		(256 * 1024)
73
74/*
75 * Size of shared memory map
76 */
77#ifndef SHMMAXPGS
78#define	SHMMAXPGS		1024
79#endif
80
81/* Size of user raw I/O map */
82#ifndef USRIOSIZE
83#define	USRIOSIZE		(MAXBSIZE / PAGE_SIZE * 8)
84#endif
85
86#define	VM_PHYS_SIZE		(USRIOSIZE * PAGE_SIZE)
87
88#endif /* !_SH_VMPARAM_H_ */
89