2 * SPDX-License-Identifier: BSD-2-Clause AND BSD-4-Clause
4 * Copyright (c) 1999 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
33 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
34 * Copyright (C) 1995, 1996 TooLs GmbH.
35 * All rights reserved.
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 * 3. All advertising materials mentioning features or use of this software
46 * must display the following acknowledgement:
47 * This product includes software developed by TooLs GmbH.
48 * 4. The name of TooLs GmbH may not be used to endorse or promote products
49 * derived from this software without specific prior written permission.
51 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
52 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
53 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
54 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
56 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
57 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
58 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
59 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
60 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 * $NetBSD: bat.h,v 1.2 1999/12/18 01:36:06 thorpej Exp $
65 #ifndef _MACHINE_BAT_H_
66 #define _MACHINE_BAT_H_
75 /* Lower BAT bits (all but PowerPC 601): */
76 #define BAT_PBS 0xfffe0000 /* physical block start */
77 #define BAT_W 0x00000040 /* 1 = write-through, 0 = write-back */
78 #define BAT_I 0x00000020 /* cache inhibit */
79 #define BAT_M 0x00000010 /* memory coherency enable */
80 #define BAT_G 0x00000008 /* guarded region */
82 #define BAT_PP_NONE 0x00000000 /* no access permission */
83 #define BAT_PP_RO_S 0x00000001 /* read-only (soft) */
84 #define BAT_PP_RW 0x00000002 /* read/write */
85 #define BAT_PP_RO 0x00000003 /* read-only */
87 /* Upper BAT bits (all but PowerPC 601): */
88 #define BAT_EBS 0xfffe0000 /* effective block start */
89 #define BAT_BL 0x00001ffc /* block length */
90 #define BAT_Vs 0x00000002 /* valid in supervisor mode */
91 #define BAT_Vu 0x00000001 /* valid in user mode */
93 #define BAT_V (BAT_Vs|BAT_Vu)
95 /* Block Length encoding (all but PowerPC 601): */
96 #define BAT_BL_128K 0x00000000
97 #define BAT_BL_256K 0x00000004
98 #define BAT_BL_512K 0x0000000c
99 #define BAT_BL_1M 0x0000001c
100 #define BAT_BL_2M 0x0000003c
101 #define BAT_BL_4M 0x0000007c
102 #define BAT_BL_8M 0x000000fc
103 #define BAT_BL_16M 0x000001fc
104 #define BAT_BL_32M 0x000003fc
105 #define BAT_BL_64M 0x000007fc
106 #define BAT_BL_128M 0x00000ffc
107 #define BAT_BL_256M 0x00001ffc
109 #define BATU(va, len, v) \
110 (((va) & BAT_EBS) | ((len) & BAT_BL) | ((v) & BAT_V))
112 #define BATL(pa, wimg, pp) \
113 (((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_ */