xref: /netbsd-src/sys/arch/news68k/include/param.h (revision 404fbe5fb94ca1e054339640cabb2801ce52dd30)
1 /*	$NetBSD: param.h,v 1.12 2007/12/31 13:38:52 ad 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  *
37  *	@(#)param.h	8.1 (Berkeley) 6/10/93
38  */
39 /*
40  * Copyright (c) 1988 University of Utah.
41  *
42  * This code is derived from software contributed to Berkeley by
43  * the Systems Programming Group of the University of Utah Computer
44  * Science Department.
45  *
46  * Redistribution and use in source and binary forms, with or without
47  * modification, are permitted provided that the following conditions
48  * are met:
49  * 1. Redistributions of source code must retain the above copyright
50  *    notice, this list of conditions and the following disclaimer.
51  * 2. Redistributions in binary form must reproduce the above copyright
52  *    notice, this list of conditions and the following disclaimer in the
53  *    documentation and/or other materials provided with the distribution.
54  * 3. All advertising materials mentioning features or use of this software
55  *    must display the following acknowledgement:
56  *	This product includes software developed by the University of
57  *	California, Berkeley and its contributors.
58  * 4. Neither the name of the University nor the names of its contributors
59  *    may be used to endorse or promote products derived from this software
60  *    without specific prior written permission.
61  *
62  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
63  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
64  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
65  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
66  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
67  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
68  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
69  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
70  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
71  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
72  * SUCH DAMAGE.
73  *
74  * from: Utah $Hdr: machparam.h 1.16 92/12/20$
75  *
76  *	@(#)param.h	8.1 (Berkeley) 6/10/93
77  */
78 
79 #ifndef	_NEWS68K_PARAM_H_
80 #define	_NEWS68K_PARAM_H_
81 
82 /*
83  * Machine dependent constants for m68k NEWS.
84  */
85 #define	_MACHINE	news68k
86 #define	MACHINE		"news68k"
87 
88 
89 #define	PGSHIFT		12		/* LOG2(NBPG) */
90 #define	KERNBASE	0x00000000	/* start of kernel virtual */
91 
92 #define	SEGSHIFT	22		/* LOG2(NBSEG) */
93 #if defined(M68030) && !defined(M68040) && !defined(M68060)
94 #define NBSEG		(1 << SEGSHIFT)	/* bytes/segment */
95 #elif (defined(M68040) || defined(M68060)) && !defined(M68030)
96 #define	NBSEG		(32 * (1 << PGSHIFT))
97 #else
98 #define	NBSEG		((mmutype == MMU_68040) ? \
99 				(32 * (1 << PGSHIFT)) : (256 * (1 << PGSHIFT)))
100 #endif
101 #define	SEGOFSET	(NBSEG-1)	/* byte offset into segment */
102 
103 #define	UPAGES		2		/* pages of u-area */
104 
105 #include <m68k/param.h>
106 
107 #define	NPTEPG		(NBPG/(sizeof (pt_entry_t)))
108 
109 /*
110  * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized
111  * logical pages.
112  */
113 #define	NKMEMPAGES_MIN_DEFAULT	((3 * 1024 * 1024) >> PAGE_SHIFT)
114 #define	NKMEMPAGES_MAX_DEFAULT	((4 * 1024 * 1024) >> PAGE_SHIFT)
115 
116 #if defined(_KERNEL) && !defined(_LOCORE)
117 #include <machine/intr.h>
118 
119 #define	delay(us)	_delay((us) << 8)
120 #define DELAY(us)	delay(us)
121 
122 void	_delay(u_int);
123 #endif /* _KERNEL && !_LOCORE */
124 
125 #endif	/* !_NEWS68K_PARAM_H_ */
126