2 * Copyright (c) 1999 The NetBSD Foundation, Inc.
5 * This code is derived from software contributed to The NetBSD Foundation
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the NetBSD
19 * Foundation, Inc. and its contributors.
20 * 4. Neither the name of The NetBSD Foundation nor the names of its
21 * contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
38 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
39 * Copyright (C) 1995, 1996 TooLs GmbH.
40 * All rights reserved.
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 3. All advertising materials mentioning features or use of this software
51 * must display the following acknowledgement:
52 * This product includes software developed by TooLs GmbH.
53 * 4. The name of TooLs GmbH may not be used to endorse or promote products
54 * derived from this software without specific prior written permission.
56 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
57 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
58 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
59 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
60 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
61 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
62 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
63 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
64 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
65 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
67 * $NetBSD: bat.h,v 1.2 1999/12/18 01:36:06 thorpej Exp $
71 #ifndef _MACHINE_BAT_H_
72 #define _MACHINE_BAT_H_
79 /* Lower BAT bits (all but PowerPC 601): */
80 #define BAT_PBS 0xfffe0000 /* physical block start */
81 #define BAT_W 0x00000040 /* 1 = write-through, 0 = write-back */
82 #define BAT_I 0x00000020 /* cache inhibit */
83 #define BAT_M 0x00000010 /* memory coherency enable */
84 #define BAT_G 0x00000008 /* guarded region */
86 #define BAT_PP_NONE 0x00000000 /* no access permission */
87 #define BAT_PP_RO_S 0x00000001 /* read-only (soft) */
88 #define BAT_PP_RW 0x00000002 /* read/write */
89 #define BAT_PP_RO 0x00000003 /* read-only */
91 /* Upper BAT bits (all but PowerPC 601): */
92 #define BAT_EBS 0xfffe0000 /* effective block start */
93 #define BAT_BL 0x00001ffc /* block length */
94 #define BAT_Vs 0x00000002 /* valid in supervisor mode */
95 #define BAT_Vu 0x00000001 /* valid in user mode */
97 #define BAT_V (BAT_Vs|BAT_Vu)
99 /* Block Length encoding (all but PowerPC 601): */
100 #define BAT_BL_128K 0x00000000
101 #define BAT_BL_256K 0x00000004
102 #define BAT_BL_512K 0x0000000c
103 #define BAT_BL_1M 0x0000001c
104 #define BAT_BL_2M 0x0000003c
105 #define BAT_BL_4M 0x0000007c
106 #define BAT_BL_8M 0x000000fc
107 #define BAT_BL_16M 0x000001fc
108 #define BAT_BL_32M 0x000003fc
109 #define BAT_BL_64M 0x000007fc
110 #define BAT_BL_128M 0x00000ffc
111 #define BAT_BL_256M 0x00001ffc
113 #define BATU(va, len, v) \
114 (((va) & BAT_EBS) | ((len) & BAT_BL) | ((v) & BAT_V))
116 #define BATL(pa, wimg, pp) \
117 (((pa) & BAT_PBS) | (wimg) | (pp))
120 /* Lower BAT bits (PowerPC 601): */
121 #define BAT601_PBN 0xfffe0000 /* physical block number */
122 #define BAT601_V 0x00000040 /* valid */
123 #define BAT601_BSM 0x0000003f /* block size mask */
125 /* Upper BAT bits (PowerPC 601): */
126 #define BAT601_BLPI 0xfffe0000 /* block logical page index */
127 #define BAT601_W 0x00000040 /* 1 = write-through, 0 = write-back */
128 #define BAT601_I 0x00000020 /* cache inhibit */
129 #define BAT601_M 0x00000010 /* memory coherency enable */
130 #define BAT601_Ks 0x00000008 /* key-supervisor */
131 #define BAT601_Ku 0x00000004 /* key-user */
134 * Permission bits on the PowerPC 601 are modified by the appropriate
148 #define BAT601_PP_NONE 0x00000000 /* no access permission */
149 #define BAT601_PP_RO_S 0x00000001 /* read-only (soft) */
150 #define BAT601_PP_RW 0x00000002 /* read/write */
151 #define BAT601_PP_RO 0x00000003 /* read-only */
153 /* Block Size Mask encoding (PowerPC 601): */
154 #define BAT601_BSM_128K 0x00000000
155 #define BAT601_BSM_256K 0x00000001
156 #define BAT601_BSM_512K 0x00000003
157 #define BAT601_BSM_1M 0x00000007
158 #define BAT601_BSM_2M 0x0000000f
159 #define BAT601_BSM_4M 0x0000001f
160 #define BAT601_BSM_8M 0x0000003f
162 #define BATU601(va, wim, key, pp) \
163 (((va) & BAT601_BLPI) | (wim) | (key) | (pp))
165 #define BATL601(pa, size, v) \
166 (((pa) & BAT601_PBN) | (v) | (size))
169 extern struct bat battable[16];
172 #endif /* _MACHINE_BAT_H_ */