1/*	$NetBSD: vmparam.h,v 1.28 2017/11/02 09:42:45 skrll Exp $	*/
2
3/*
4 * Copyright (c) 1988 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#ifndef	_NETWINDER_VMPARAM_H_
33#define	_NETWINDER_VMPARAM_H_
34
35#if defined(_KERNEL) || defined(_KMEMUSER)
36
37#include <arm/arm32/vmparam.h>
38
39/*
40 * Address space constants
41 */
42
43/*
44 * The line between user space and kernel space
45 * Mappings >= KERNEL_BASE are constant across all processes
46 */
47#define	KERNEL_BASE		0xf0000000
48
49/*
50 * Size of User Raw I/O map
51 */
52
53#define USRIOSIZE       300
54
55/* virtual sizes (bytes) for various kernel submaps */
56
57#define VM_PHYS_SIZE		(USRIOSIZE*PAGE_SIZE)
58
59/*
60 * max number of non-contig chunks of physical RAM you can have
61 */
62
63#define	VM_PHYSSEG_MAX		32
64
65/*
66 * when converting a physical address to a vm_page structure, we
67 * want to use a binary search on the chunks of physical memory
68 * to find our RAM
69 */
70
71#define	VM_PHYSSEG_STRAT	VM_PSTRAT_BSEARCH
72
73/*
74 * we support 2 free lists:
75 *
76 *	- DEFAULT for all systems
77 *	- ISADMA for the ISA DMA range
78 */
79
80#define	VM_NFREELIST		2
81#define	VM_FREELIST_DEFAULT	0
82#define	VM_FREELIST_ISADMA	1
83
84#endif /* _KERNEL || _KMEMUSER */
85
86#endif	/* _NETWINDER_VMPARAM_H_ */
87