xref: /netbsd/sys/arch/sun2/sun2/control.h (revision bf9ec67e)
1 /*	$NetBSD: control.h,v 1.3 2001/06/14 16:36:46 fredette Exp $	*/
2 
3 /*-
4  * Copyright (c) 1996 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Adam Glass and Matthew Fredette.
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. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *        This product includes software developed by the NetBSD
21  *        Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 /*
40  * Macros for Sun2 control space
41  */
42 
43 /*
44  * On the Sun3, the 32 bytes of IDPROM are at consecutive addresses in
45  * control space starting at 0x00000000.  On the Sun2, the 32 bytes of
46  * IDPROM are at offset 8 in each of the the first 32 pages of control
47  * space, i.e., on the Sun2, in control space the page frame is used
48  * as an index, and the page offset bits are used to select something
49  * to use that index with.  I'm not sure which I like better.
50  */
51 
52 #include <sun68k/sun68k/control.h>
53 
54 #define PGMAP_BASE       0x00000000
55 #define SEGMAP_BASE      0x00000005
56 #define SCONTEXT_REG     0x00000006
57 #define CONTEXT_REG      0x00000007
58 #define IDPROM_BASE      0x00000008
59 #define DIAG_REG         0x0000000B
60 #define BUSERR_REG       0x0000000C
61 #define SYSTEM_ENAB      0x0000000E
62 
63 #define CONTROL_ADDR_MASK 0xFFFFF800
64 #define CONTROL_ADDR_BUILD(as, va) \
65 ((as) | ((va) & CONTROL_ADDR_MASK))
66 
67 #define CONTEXT_NUM 0x8
68 #define CONTEXT_MASK 0x7
69