| 1 |
/* GXemul: $Id: ppc_bat.h,v 1.1 2005/11/17 21:26:07 debug Exp $ */ |
| 2 |
/* $NetBSD: bat.h,v 1.5 2003/03/14 06:21:19 matt Exp $ */ |
| 3 |
|
| 4 |
#ifndef _POWERPC_OEA_BAT_H_ |
| 5 |
#define _POWERPC_OEA_BAT_H_ |
| 6 |
|
| 7 |
/*- |
| 8 |
* Copyright (c) 1999 The NetBSD Foundation, Inc. |
| 9 |
* All rights reserved. |
| 10 |
* |
| 11 |
* This code is derived from software contributed to The NetBSD Foundation |
| 12 |
* by Jason R. Thorpe. |
| 13 |
* |
| 14 |
* Redistribution and use in source and binary forms, with or without |
| 15 |
* modification, are permitted provided that the following conditions |
| 16 |
* are met: |
| 17 |
* 1. Redistributions of source code must retain the above copyright |
| 18 |
* notice, this list of conditions and the following disclaimer. |
| 19 |
* 2. Redistributions in binary form must reproduce the above copyright |
| 20 |
* notice, this list of conditions and the following disclaimer in the |
| 21 |
* documentation and/or other materials provided with the distribution. |
| 22 |
* 3. All advertising materials mentioning features or use of this software |
| 23 |
* must display the following acknowledgement: |
| 24 |
* This product includes software developed by the NetBSD |
| 25 |
* Foundation, Inc. and its contributors. |
| 26 |
* 4. Neither the name of The NetBSD Foundation nor the names of its |
| 27 |
* contributors may be used to endorse or promote products derived |
| 28 |
* from this software without specific prior written permission. |
| 29 |
* |
| 30 |
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 31 |
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 32 |
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 33 |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 34 |
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 35 |
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 36 |
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 37 |
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 38 |
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 39 |
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 40 |
* POSSIBILITY OF SUCH DAMAGE. |
| 41 |
*/ |
| 42 |
|
| 43 |
/* |
| 44 |
* Copyright (C) 1995, 1996 Wolfgang Solfrank. |
| 45 |
* Copyright (C) 1995, 1996 TooLs GmbH. |
| 46 |
* All rights reserved. |
| 47 |
* |
| 48 |
* Redistribution and use in source and binary forms, with or without |
| 49 |
* modification, are permitted provided that the following conditions |
| 50 |
* are met: |
| 51 |
* 1. Redistributions of source code must retain the above copyright |
| 52 |
* notice, this list of conditions and the following disclaimer. |
| 53 |
* 2. Redistributions in binary form must reproduce the above copyright |
| 54 |
* notice, this list of conditions and the following disclaimer in the |
| 55 |
* documentation and/or other materials provided with the distribution. |
| 56 |
* 3. All advertising materials mentioning features or use of this software |
| 57 |
* must display the following acknowledgement: |
| 58 |
* This product includes software developed by TooLs GmbH. |
| 59 |
* 4. The name of TooLs GmbH may not be used to endorse or promote products |
| 60 |
* derived from this software without specific prior written permission. |
| 61 |
* |
| 62 |
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR |
| 63 |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 64 |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 65 |
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 66 |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 67 |
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 68 |
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 69 |
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 70 |
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 71 |
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 72 |
*/ |
| 73 |
|
| 74 |
#if 0 |
| 75 |
#ifndef _LOCORE |
| 76 |
struct bat { |
| 77 |
register_t batu; |
| 78 |
register_t batl; |
| 79 |
}; |
| 80 |
#endif |
| 81 |
#endif |
| 82 |
|
| 83 |
/* Lower BAT bits (all but PowerPC 601): */ |
| 84 |
#define BAT_RPN (~0x1ffff) /* physical block start */ |
| 85 |
#define BAT_XPN 0x00000e00 /* eXtended physical page number (0-2) */ |
| 86 |
#define BAT_W 0x00000040 /* 1 = write-through, 0 = write-back */ |
| 87 |
#define BAT_I 0x00000020 /* cache inhibit */ |
| 88 |
#define BAT_M 0x00000010 /* memory coherency enable */ |
| 89 |
#define BAT_G 0x00000008 /* guarded region (not on 601) */ |
| 90 |
#define BAT_X 0x00000004 /* eXtended physical page number (3) */ |
| 91 |
|
| 92 |
/* |
| 93 |
* BAT_XPN and BAT_X are only used when HID0[XAEN] == 1 and are used |
| 94 |
* to generate the 4 MSB of physical address |
| 95 |
*/ |
| 96 |
|
| 97 |
#define BAT_PP 0x00000003 /* PP mask */ |
| 98 |
#define BAT_PP_NONE 0x00000000 /* no access permission */ |
| 99 |
#define BAT_PP_RO_S 0x00000001 /* read-only (soft) */ |
| 100 |
#define BAT_PP_RW 0x00000002 /* read/write */ |
| 101 |
#define BAT_PP_RO 0x00000003 /* read-only */ |
| 102 |
|
| 103 |
/* Upper BAT bits (all but PowerPC 601): */ |
| 104 |
#define BAT_EPI (~0x1ffffL) /* effective block start */ |
| 105 |
#define BAT_BL 0x00001ffc /* block length */ |
| 106 |
#define BAT_Vs 0x00000002 /* valid in supervisor mode */ |
| 107 |
#define BAT_Vu 0x00000001 /* valid in user mode */ |
| 108 |
|
| 109 |
#define BAT_XBL 0x0001e000 /* eXtended Block Length (*) */ |
| 110 |
#define BAT_XBL_512M 0x00002000 /* XBL for 512MB */ |
| 111 |
#define BAT_XBL_1G 0x00006000 /* XBL for 1GB */ |
| 112 |
#define BAT_XBL_2G 0x0000e000 /* XBL for 2GB */ |
| 113 |
#define BAT_XBL_4G 0x0001e000 /* XBL for 4GB */ |
| 114 |
|
| 115 |
#define BAT_V (BAT_Vs|BAT_Vu) |
| 116 |
|
| 117 |
/* Block Length encoding (all but PowerPC 601): */ |
| 118 |
#define BAT_BL_128K 0x00000000 |
| 119 |
#define BAT_BL_256K 0x00000004 |
| 120 |
#define BAT_BL_512K 0x0000000c |
| 121 |
#define BAT_BL_1M 0x0000001c |
| 122 |
#define BAT_BL_2M 0x0000003c |
| 123 |
#define BAT_BL_4M 0x0000007c |
| 124 |
#define BAT_BL_8M 0x000000fc |
| 125 |
#define BAT_BL_16M 0x000001fc |
| 126 |
#define BAT_BL_32M 0x000003fc |
| 127 |
#define BAT_BL_64M 0x000007fc |
| 128 |
#define BAT_BL_128M 0x00000ffc |
| 129 |
#define BAT_BL_256M 0x00001ffc |
| 130 |
|
| 131 |
#define BATU(va, len, v) \ |
| 132 |
(((va) & BAT_EPI) | ((len) & BAT_BL) | ((v) & BAT_V)) |
| 133 |
|
| 134 |
#define BATL(pa, wimg, pp) \ |
| 135 |
(((pa) & BAT_RPN) | (wimg) | (pp)) |
| 136 |
|
| 137 |
#define BAT_VA_MATCH_P(batu,va) \ |
| 138 |
(((~(((batu)&BAT_BL)<<15))&(va)&BAT_EPI)==((batu)&BAT_EPI)) |
| 139 |
|
| 140 |
#define BAT_PA_MATCH_P(batu,batl,pa) \ |
| 141 |
(((~(((batu)&BAT_BL)<<15))&(pa)&BAT_RPN)==((batl)&BAT_RPN)) |
| 142 |
|
| 143 |
#define BAT_VALID_P(batu, msr) \ |
| 144 |
(((msr)&PSL_PR)?(((batu)&BAT_Vu)==BAT_Vu):(((batu)&BAT_Vs)==BAT_Vs)) |
| 145 |
|
| 146 |
/* Lower BAT bits (PowerPC 601): */ |
| 147 |
#define BAT601_PBN 0xfffe0000 /* physical block number */ |
| 148 |
#define BAT601_V 0x00000040 /* valid */ |
| 149 |
#define BAT601_BSM 0x0000003f /* block size mask */ |
| 150 |
|
| 151 |
/* Upper BAT bits (PowerPC 601): */ |
| 152 |
#define BAT601_BLPI 0xfffe0000 /* block logical page index */ |
| 153 |
#define BAT601_W 0x00000040 /* 1 = write-through, 0 = write-back */ |
| 154 |
#define BAT601_I 0x00000020 /* cache inhibit */ |
| 155 |
#define BAT601_M 0x00000010 /* memory coherency enable */ |
| 156 |
#define BAT601_Ks 0x00000008 /* key-supervisor */ |
| 157 |
#define BAT601_Ku 0x00000004 /* key-user */ |
| 158 |
|
| 159 |
/* |
| 160 |
* Permission bits on the PowerPC 601 are modified by the appropriate |
| 161 |
* Key bit: |
| 162 |
* |
| 163 |
* Key PP Access |
| 164 |
* 0 NONE read/write |
| 165 |
* 0 RO_S read/write |
| 166 |
* 0 RW read/write |
| 167 |
* 0 RO read-only |
| 168 |
* |
| 169 |
* 1 NONE none |
| 170 |
* 1 RO_S read-only |
| 171 |
* 1 RW read/write |
| 172 |
* 1 RO read-only |
| 173 |
*/ |
| 174 |
#define BAT601_PP 0x00000003 |
| 175 |
#define BAT601_PP_NONE 0x00000000 /* no access permission */ |
| 176 |
#define BAT601_PP_RO_S 0x00000001 /* read-only (soft) */ |
| 177 |
#define BAT601_PP_RW 0x00000002 /* read/write */ |
| 178 |
#define BAT601_PP_RO 0x00000003 /* read-only */ |
| 179 |
|
| 180 |
/* Block Size Mask encoding (PowerPC 601): */ |
| 181 |
#define BAT601_BSM_128K 0x00000000 |
| 182 |
#define BAT601_BSM_256K 0x00000001 |
| 183 |
#define BAT601_BSM_512K 0x00000003 |
| 184 |
#define BAT601_BSM_1M 0x00000007 |
| 185 |
#define BAT601_BSM_2M 0x0000000f |
| 186 |
#define BAT601_BSM_4M 0x0000001f |
| 187 |
#define BAT601_BSM_8M 0x0000003f |
| 188 |
|
| 189 |
#define BATU601(va, wim, key, pp) \ |
| 190 |
(((va) & BAT601_BLPI) | (wim) | (key) | (pp)) |
| 191 |
|
| 192 |
#define BATL601(pa, size, v) \ |
| 193 |
(((pa) & BAT601_PBN) | (v) | (size)) |
| 194 |
|
| 195 |
#define BAT601_VA_MATCH_P(batu, batl, va) \ |
| 196 |
(((~(((batl)&BAT601_BSM)<<17))&(va)&BAT601_BLPI)==((batu)&BAT601_BLPI)) |
| 197 |
|
| 198 |
#define BAT601_VALID_P(batl) \ |
| 199 |
((batl) & BAT601_V) |
| 200 |
|
| 201 |
#ifdef _KERNEL |
| 202 |
#ifndef _LOCORE |
| 203 |
void oea_batinit(paddr_t, ...); |
| 204 |
void oea_iobat_add(paddr_t, register_t); |
| 205 |
void oea_iobat_remove(paddr_t); |
| 206 |
extern struct bat battable[]; |
| 207 |
#endif |
| 208 |
#endif |
| 209 |
|
| 210 |
#endif /* _POWERPC_OEA_BAT_H_ */ |
Parent Directory
| 
Revision Log