xref: /netbsd-src/sys/arch/sun2/include/param.h (revision b1c86f5f087524e68db12794ee9c3e3da1ab17a0)
1 /*	$NetBSD: param.h,v 1.12 2010/02/08 19:02:32 joerg Exp $	*/
2 
3 /*
4  * Copyright (c) 1982, 1986, 1990, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * This code is derived from software contributed to Berkeley by
8  * the Systems Programming Group of the University of Utah Computer
9  * Science Department.
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  * 3. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  *
35  *	from: Utah Hdr: machparam.h 1.16 92/12/20
36  *	from: @(#)param.h	8.1 (Berkeley) 6/10/93
37  */
38 /*
39  * Copyright (c) 1988 University of Utah.
40  *
41  * This code is derived from software contributed to Berkeley by
42  * the Systems Programming Group of the University of Utah Computer
43  * Science Department.
44  *
45  * Redistribution and use in source and binary forms, with or without
46  * modification, are permitted provided that the following conditions
47  * are met:
48  * 1. Redistributions of source code must retain the above copyright
49  *    notice, this list of conditions and the following disclaimer.
50  * 2. Redistributions in binary form must reproduce the above copyright
51  *    notice, this list of conditions and the following disclaimer in the
52  *    documentation and/or other materials provided with the distribution.
53  * 3. All advertising materials mentioning features or use of this software
54  *    must display the following acknowledgement:
55  *	This product includes software developed by the University of
56  *	California, Berkeley and its contributors.
57  * 4. Neither the name of the University nor the names of its contributors
58  *    may be used to endorse or promote products derived from this software
59  *    without specific prior written permission.
60  *
61  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
62  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
63  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
64  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
65  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
66  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
67  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
68  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
69  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
70  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
71  * SUCH DAMAGE.
72  *
73  *	from: Utah Hdr: machparam.h 1.16 92/12/20
74  *	from: @(#)param.h	8.1 (Berkeley) 6/10/93
75  */
76 
77 #ifndef	_MACHINE_PARAM_H_
78 #define	_MACHINE_PARAM_H_
79 
80 /*
81  * Machine dependent constants for the Sun2 series.
82  */
83 #define	_MACHINE	sun2
84 #define	MACHINE		"sun2"
85 #define	_MACHINE_ARCH	m68000
86 #define	MACHINE_ARCH	"m68000"
87 #define	MID_MACHINE	MID_M680002K
88 
89 #define PGSHIFT		11		/* LOG2(NBPG) */
90 
91 #ifdef MSGBUFSIZE
92 #error "MSGBUFSIZE is not user-adjustable for this arch"
93 #endif
94 #define MSGBUFOFF	0x0
95 #define MSGBUFSIZE	((NBPG * 4) - MSGBUFOFF)
96 
97 /* This is needed by ps (actually USPACE). */
98 #define	UPAGES		(16384 / NBPG)		/* pages of u-area */
99 
100 #if defined(_KERNEL) || defined(_STANDALONE)
101 
102 #define	KERNBASE	0x00006000	/* start of kernel virtual */
103 #define	KERN_END	0x00E00000	/* end of kernel virtual */
104 
105 #define	MAXBSIZE	0x4000		/* max FS block size */
106 #define	MAXPHYS		0xe000
107 
108 /*
109  * XXX fredette - we force a small cluster size to help me debug
110  * this on my low-memory machine.  These should go away at some point.
111  */
112 #define MCLSHIFT	10
113 
114 /*
115  * XXX fredette - we must define this, otw UBC consumes 8MB of kernel VM.
116  * For now, we make it absurdly small, perhaps it can grow later.
117  */
118 #define	UBC_NWINS	32
119 
120 #define	MAXEXEC		1
121 
122 #endif	/* _KERNEL */
123 
124 #include <m68k/param.h>
125 
126 /*
127  * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized
128  * logical pages.
129  */
130 #define	NKMEMPAGES_MIN_DEFAULT	((3 * 1024 * 1024) >> PAGE_SHIFT)
131 #define	NKMEMPAGES_MAX_DEFAULT	((3 * 1024 * 1024) >> PAGE_SHIFT)
132 
133 #if defined(_KERNEL) && !defined(_LOCORE)
134 
135 #include <machine/intr.h>
136 
137 extern void _delay(unsigned);
138 #define delay(us)	_delay((us)<<8)
139 #define	DELAY(n)	delay(n)
140 
141 #endif	/* _KERNEL && !_LOCORE */
142 #endif	/* !_MACHINE_PARAM_H_ */
143