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.
17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27 * POSSIBILITY OF SUCH DAMAGE.
31 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
32 * Copyright (C) 1995, 1996 TooLs GmbH.
33 * All rights reserved.
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 * 3. All advertising materials mentioning features or use of this software
44 * must display the following acknowledgement:
45 * This product includes software developed by TooLs GmbH.
46 * 4. The name of TooLs GmbH may not be used to endorse or promote products
47 * derived from this software without specific prior written permission.
49 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
50 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
51 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
52 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
53 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
54 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
55 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
56 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
57 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
58 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
60 * $NetBSD: bat.h,v 1.2 1999/12/18 01:36:06 thorpej Exp $
64 #ifndef _MACHINE_BAT_H_
65 #define _MACHINE_BAT_H_
74 /* Lower BAT bits (all but PowerPC 601): */
75 #define BAT_PBS 0xfffe0000 /* physical block start */
76 #define BAT_W 0x00000040 /* 1 = write-through, 0 = write-back */
77 #define BAT_I 0x00000020 /* cache inhibit */
78 #define BAT_M 0x00000010 /* memory coherency enable */
79 #define BAT_G 0x00000008 /* guarded region */
81 #define BAT_PP_NONE 0x00000000 /* no access permission */
82 #define BAT_PP_RO_S 0x00000001 /* read-only (soft) */
83 #define BAT_PP_RW 0x00000002 /* read/write */
84 #define BAT_PP_RO 0x00000003 /* read-only */
86 /* Upper BAT bits (all but PowerPC 601): */
87 #define BAT_EBS 0xfffe0000 /* effective block start */
88 #define BAT_BL 0x00001ffc /* block length */
89 #define BAT_Vs 0x00000002 /* valid in supervisor mode */
90 #define BAT_Vu 0x00000001 /* valid in user mode */
92 #define BAT_V (BAT_Vs|BAT_Vu)
94 /* Block Length encoding (all but PowerPC 601): */
95 #define BAT_BL_128K 0x00000000
96 #define BAT_BL_256K 0x00000004
97 #define BAT_BL_512K 0x0000000c
98 #define BAT_BL_1M 0x0000001c
99 #define BAT_BL_2M 0x0000003c
100 #define BAT_BL_4M 0x0000007c
101 #define BAT_BL_8M 0x000000fc
102 #define BAT_BL_16M 0x000001fc
103 #define BAT_BL_32M 0x000003fc
104 #define BAT_BL_64M 0x000007fc
105 #define BAT_BL_128M 0x00000ffc
106 #define BAT_BL_256M 0x00001ffc
108 #define BATU(va, len, v) \
109 (((va) & BAT_EBS) | ((len) & BAT_BL) | ((v) & BAT_V))
111 #define BATL(pa, wimg, pp) \
112 (((pa) & BAT_PBS) | (wimg) | (pp))
115 /* Lower BAT bits (PowerPC 601): */
116 #define BAT601_PBN 0xfffe0000 /* physical block number */
117 #define BAT601_V 0x00000040 /* valid */
118 #define BAT601_BSM 0x0000003f /* block size mask */
120 /* Upper BAT bits (PowerPC 601): */
121 #define BAT601_BLPI 0xfffe0000 /* block logical page index */
122 #define BAT601_W 0x00000040 /* 1 = write-through, 0 = write-back */
123 #define BAT601_I 0x00000020 /* cache inhibit */
124 #define BAT601_M 0x00000010 /* memory coherency enable */
125 #define BAT601_Ks 0x00000008 /* key-supervisor */
126 #define BAT601_Ku 0x00000004 /* key-user */
129 * Permission bits on the PowerPC 601 are modified by the appropriate
143 #define BAT601_PP_NONE 0x00000000 /* no access permission */
144 #define BAT601_PP_RO_S 0x00000001 /* read-only (soft) */
145 #define BAT601_PP_RW 0x00000002 /* read/write */
146 #define BAT601_PP_RO 0x00000003 /* read-only */
148 /* Block Size Mask encoding (PowerPC 601): */
149 #define BAT601_BSM_128K 0x00000000
150 #define BAT601_BSM_256K 0x00000001
151 #define BAT601_BSM_512K 0x00000003
152 #define BAT601_BSM_1M 0x00000007
153 #define BAT601_BSM_2M 0x0000000f
154 #define BAT601_BSM_4M 0x0000001f
155 #define BAT601_BSM_8M 0x0000003f
157 #define BATU601(va, wim, key, pp) \
158 (((va) & BAT601_BLPI) | (wim) | (key) | (pp))
160 #define BATL601(pa, size, v) \
161 (((pa) & BAT601_PBN) | (v) | (size))
163 #if defined(_KERNEL) && !defined(LOCORE)
164 extern struct bat battable[16];
167 #endif /* _MACHINE_BAT_H_ */