Annotation of sys/arch/mac68k/include/vmparam.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: vmparam.h,v 1.16 2006/09/17 22:23:40 miod Exp $ */
2: /* $NetBSD: vmparam.h,v 1.8 1996/11/15 14:21:00 briggs Exp $ */
3:
4: /*
5: * Copyright (c) 1988 University of Utah.
6: * Copyright (c) 1982, 1990 The Regents of the University of California.
7: * All rights reserved.
8: *
9: * This code is derived from software contributed to Berkeley by
10: * the Systems Programming Group of the University of Utah Computer
11: * Science Department.
12: *
13: * Redistribution and use in source and binary forms, with or without
14: * modification, are permitted provided that the following conditions
15: * are met:
16: * 1. Redistributions of source code must retain the above copyright
17: * notice, this list of conditions and the following disclaimer.
18: * 2. Redistributions in binary form must reproduce the above copyright
19: * notice, this list of conditions and the following disclaimer in the
20: * documentation and/or other materials provided with the distribution.
21: * 3. Neither the name of the University nor the names of its contributors
22: * may be used to endorse or promote products derived from this software
23: * without specific prior written permission.
24: *
25: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35: * SUCH DAMAGE.
36: */
37: /*-
38: * Copyright (C) 1993 Allen K. Briggs, Chris P. Caputo,
39: * Michael L. Finch, Bradley A. Grantham, and
40: * Lawrence A. Kesteloot
41: * All rights reserved.
42: *
43: * Redistribution and use in source and binary forms, with or without
44: * modification, are permitted provided that the following conditions
45: * are met:
46: * 1. Redistributions of source code must retain the above copyright
47: * notice, this list of conditions and the following disclaimer.
48: * 2. Redistributions in binary form must reproduce the above copyright
49: * notice, this list of conditions and the following disclaimer in the
50: * documentation and/or other materials provided with the distribution.
51: * 3. All advertising materials mentioning features or use of this software
52: * must display the following acknowledgement:
53: * This product includes software developed by the Alice Group.
54: * 4. The names of the Alice Group or any of its members may not be used
55: * to endorse or promote products derived from this software without
56: * specific prior written permission.
57: *
58: * THIS SOFTWARE IS PROVIDED BY THE ALICE GROUP ``AS IS'' AND ANY EXPRESS OR
59: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
60: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
61: * IN NO EVENT SHALL THE ALICE GROUP BE LIABLE FOR ANY DIRECT, INDIRECT,
62: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
63: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
64: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
65: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
66: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
67: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
68: *
69: */
70: /*
71: * from: Utah $Hdr: vmparam.h 1.16 91/01/18$
72: *
73: * @(#)vmparam.h 7.3 (Berkeley) 5/7/91
74: */
75:
76: #ifndef _MAC68K_VMPARAM_H_
77: #define _MAC68K_VMPARAM_H_
78:
79: /*
80: * Machine dependent constants for mac68k -- mostly derived from hp300.
81: */
82:
83: #include <m68k/vmparam.h>
84:
85: /*
86: * Constants which control the way the VM system deals with memory segments.
87: * Most mac68k systems have only 1 physical memory segment, but some have 2.
88: *
89: * On the systems that have multiple segments, specifically the IIsi and
90: * IIci, the optimal configuration is to put the higher-density SIMMs in
91: * bank B. This is because the on-board video uses main memory in bank A
92: * for the framebuffer, and a memory controller prevents access during
93: * video refresh cycles. Even if both banks contain the same amount of
94: * RAM, a minimum of ~320KB will be subtracted from the amount in bank A
95: * for the framebuffer (if on-board video is in use).
96: */
97: #define VM_PHYSSEG_MAX 8
98: #define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST
99:
100: #endif /* _MAC68K_VMPARAM_H_ */
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