1/*- 2 * SPDX-License-Identifier: BSD-2-Clause AND BSD-4-Clause 3 * 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 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 * 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. 30 */ 31 32/*- 33 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 34 * Copyright (C) 1995, 1996 TooLs GmbH. 35 * All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 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. 50 * 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. 61 * 62 * $NetBSD: bat.h,v 1.2 1999/12/18 01:36:06 thorpej Exp $ 63 */ 64 65#ifndef _MACHINE_BAT_H_ 66#define _MACHINE_BAT_H_ 67 68#ifndef LOCORE 69struct bat { 70 u_int32_t batu; 71 u_int32_t batl; 72}; 73#endif 74 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 */ 81 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 */ 86 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 */ 92 93#define BAT_V (BAT_Vs|BAT_Vu) 94 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 108 109#define BATU(va, len, v) \ 110 (((va) & BAT_EBS) | ((len) & BAT_BL) | ((v) & BAT_V)) 111 112#define BATL(pa, wimg, pp) \ 113 (((pa) & BAT_PBS) | (wimg) | (pp)) 114 115/* 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 */ 119 120/* 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 */ 127 128/* 129 * Permission bits on the PowerPC 601 are modified by the appropriate 130 * Key bit: 131 * 132 * Key PP Access 133 * 0 NONE read/write 134 * 0 RO_S read/write 135 * 0 RW read/write 136 * 0 RO read-only 137 * 138 * 1 NONE none 139 * 1 RO_S read-only 140 * 1 RW read/write 141 * 1 RO read-only 142 */ 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 */ 147 148/* 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 156 157#define BATU601(va, wim, key, pp) \ 158 (((va) & BAT601_BLPI) | (wim) | (key) | (pp)) 159 160#define BATL601(pa, size, v) \ 161 (((pa) & BAT601_PBN) | (v) | (size)) 162 163#if defined(_KERNEL) && !defined(LOCORE) 164extern struct bat battable[16]; 165#endif 166 167#endif /* _MACHINE_BAT_H_ */ 168