param.h revision 1.37 
1/*	$NetBSD: param.h,v 1.37 1997/09/20 12:06:37 leo Exp $	*/
2
3/*
4 * Copyright (c) 1988 University of Utah.
5 * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * the Systems Programming Group of the University of Utah Computer
10 * Science Department.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. All advertising materials mentioning features or use of this software
21 *    must display the following acknowledgement:
22 *	This product includes software developed by the University of
23 *	California, Berkeley and its contributors.
24 * 4. Neither the name of the University nor the names of its contributors
25 *    may be used to endorse or promote products derived from this software
26 *    without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 *
40 * from: Utah $Hdr: machparam.h 1.11 89/08/14$
41 *
42 *	@(#)param.h	7.8 (Berkeley) 6/28/91
43 */
44
45#ifndef	_MACHINE_PARAM_H_
46#define	_MACHINE_PARAM_H_
47
48/*
49 * Machine dependent constants for amiga
50 */
51#define	_MACHINE	amiga
52#define	MACHINE		"amiga"
53
54#define	PGSHIFT		13		/* LOG2(NBPG) */
55#define	KERNBASE	0x00000000	/* start of kernel virtual */
56
57#define	SEGSHIFT	24		/* LOG2(NBSEG) [68030 value] */
58/* bytes/segment */
59/* (256 * (1 << PGSHIFT)) == (1 << SEGSHIFT) */
60#define NBSEG		((mmutype == MMU_68040) \
61			    ? (32 * (1 << PGSHIFT)) : (256 * (1 << PGSHIFT)))
62#define	SEGOFSET	(NBSEG-1)	/* byte offset into segment */
63
64#define	UPAGES		2		/* pages of u-area */
65
66#include <m68k/param.h>
67
68#define	NPTEPG		(NBPG/(sizeof (pt_entry_t)))
69
70/*
71 * Size of kernel malloc arena in CLBYTES-sized logical pages
72 */
73#ifndef NKMEMCLUSTERS
74# define	NKMEMCLUSTERS	(3072 * 1024 / CLBYTES)
75#endif
76
77/*
78 * spl functions; all are normally done in-line
79 */
80#include <machine/psl.h>
81
82#ifdef	_KERNEL
83/*
84 * point to the custom.intenar and custom.intenaw respectively.
85 */
86extern volatile unsigned short *amiga_intena_read, *amiga_intena_write;
87
88#ifndef	_LOCORE
89void delay __P((int));
90void DELAY __P((int));
91#endif	/* !_LOCORE */
92#endif	/* _KERNEL */
93
94#endif	/* !_MACHINE_PARAM_H_ */
95