1/* $OpenBSD: param.h,v 1.53 2023/12/14 13:26:49 claudio Exp $ */
2
3/*-
4 * Copyright (c) 1990 The Regents of the University of California.
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. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#ifndef _MACHINE_PARAM_H_
36#define _MACHINE_PARAM_H_
37
38#ifdef _KERNEL
39#ifdef _LOCORE
40#include <machine/psl.h>
41#else
42#include <machine/cpu.h>
43#endif
44#endif
45
46#define _MACHINE i386
47#define MACHINE "i386"
48#define _MACHINE_ARCH i386
49#define MACHINE_ARCH "i386"
50#define MID_MACHINE MID_I386
51
52#define PAGE_SHIFT 12
53#define PAGE_SIZE (1 << PAGE_SHIFT)
54#define PAGE_MASK (PAGE_SIZE - 1)
55
56#define KERNBASE 0xd0000000
57
58#ifdef _KERNEL
59
60#define KERNTEXTOFF (KERNBASE+0x200000) /* start of kernel text */
61
62#define NBPG PAGE_SIZE /* bytes/page */
63#define PGSHIFT PAGE_SHIFT /* LOG2(PAGE_SIZE) */
64#define PGOFSET PAGE_MASK /* byte offset into page */
65
66#define UPAGES 3 /* pages of u-area */
67#define USPACE (UPAGES * PAGE_SIZE) /* total size of u-area */
68#define USPACE_ALIGN 0 /* u-area alignment 0-none */
69
70#define NMBCLUSTERS (32 * 1024) /* max cluster allocation */
71
72#ifndef MSGBUFSIZE
73#define MSGBUFSIZE (8 * PAGE_SIZE) /* default message buffer size */
74#endif
75
76#define __HAVE_ACPI
77
78#endif /* _KERNEL */
79
80#endif /* _MACHINE_PARAM_H_ */