bat.h revision 1.11
1 /* $NetBSD: bat.h,v 1.11 2008/02/23 19:48:43 matt Exp $ */ 2 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 41 * Copyright (C) 1995, 1996 TooLs GmbH. 42 * All rights reserved. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 3. All advertising materials mentioning features or use of this software 53 * must display the following acknowledgement: 54 * This product includes software developed by TooLs GmbH. 55 * 4. The name of TooLs GmbH may not be used to endorse or promote products 56 * derived from this software without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 62 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 63 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 64 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 65 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 66 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 67 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 68 */ 69 70 #ifndef _POWERPC_OEA_BAT_H_ 71 #define _POWERPC_OEA_BAT_H_ 72 73 #ifndef _LOCORE 74 struct bat { 75 register_t batu; 76 register_t batl; 77 }; 78 #endif 79 80 /* Lower BAT bits (all but PowerPC 601): */ 81 #define BAT_RPN (~0x1ffff) /* physical block start */ 82 #define BAT_XPN 0x00000e00 /* eXtended physical page number (0-2) */ 83 #define BAT_W 0x00000040 /* 1 = write-through, 0 = write-back */ 84 #define BAT_I 0x00000020 /* cache inhibit */ 85 #define BAT_M 0x00000010 /* memory coherency enable */ 86 #define BAT_G 0x00000008 /* guarded region (not on 601) */ 87 #define BAT_X 0x00000004 /* eXtended physical page number (3) */ 88 #define BAT_WIMG 0x00000078 /* WIMG mask */ 89 90 /* 91 * BAT_XPN and BAT_X are only used when HID0[XAEN] == 1 and are used 92 * to generate the 4 MSB of physical address 93 */ 94 95 #define BAT_PP 0x00000003 /* PP mask */ 96 #define BAT_PP_NONE 0x00000000 /* no access permission */ 97 #define BAT_PP_RO_S 0x00000001 /* read-only (soft) */ 98 #define BAT_PP_RW 0x00000002 /* read/write */ 99 #define BAT_PP_RO 0x00000003 /* read-only */ 100 101 /* Upper BAT bits (all but PowerPC 601): */ 102 #define BAT_EPI (~0x1ffffL) /* effective block start */ 103 #define BAT_BL 0x00001ffc /* block length */ 104 #define BAT_Vs 0x00000002 /* valid in supervisor mode */ 105 #define BAT_Vu 0x00000001 /* valid in user mode */ 106 107 #define BAT_XBL 0x0001e000 /* eXtended Block Length (*) */ 108 #define BAT_XBL_512M 0x00002000 /* XBL for 512MB */ 109 #define BAT_XBL_1G 0x00006000 /* XBL for 1GB */ 110 #define BAT_XBL_2G 0x0000e000 /* XBL for 2GB */ 111 #define BAT_XBL_4G 0x0001e000 /* XBL for 4GB */ 112 113 #define BAT_V (BAT_Vs|BAT_Vu) 114 115 /* Block Length encoding (all but PowerPC 601): */ 116 #define BAT_BL_128K 0x00000000 117 #define BAT_BL_256K 0x00000004 118 #define BAT_BL_512K 0x0000000c 119 #define BAT_BL_1M 0x0000001c 120 #define BAT_BL_2M 0x0000003c 121 #define BAT_BL_4M 0x0000007c 122 #define BAT_BL_8M 0x000000fc 123 #define BAT_BL_16M 0x000001fc 124 #define BAT_BL_32M 0x000003fc 125 #define BAT_BL_64M 0x000007fc 126 #define BAT_BL_128M 0x00000ffc 127 #define BAT_BL_256M 0x00001ffc 128 /* Extended Block Lengths (7455+) */ 129 #define BAT_BL_512M 0x00003ffc 130 #define BAT_BL_1G 0x00007ffc 131 #define BAT_BL_2G 0x0000fffc 132 #define BAT_BL_4G 0x0001fffc 133 134 #define BATU(va, len, v) \ 135 (((va) & BAT_EPI) | ((len) & BAT_BL) | ((v) & BAT_V)) 136 137 #define BATL(pa, wimg, pp) \ 138 (((pa) & BAT_RPN) | (wimg) | (pp)) 139 140 #define BAT_VA_MATCH_P(batu,va) \ 141 (((~(((batu)&BAT_BL)<<15))&(va)&BAT_EPI)==((batu)&BAT_EPI)) 142 143 #define BAT_PA_MATCH_P(batu,batl,pa) \ 144 (((~(((batu)&BAT_BL)<<15))&(pa)&BAT_RPN)==((batl)&BAT_RPN)) 145 146 #define BAT_VALID_P(batu, msr) \ 147 (((msr)&PSL_PR)?(((batu)&BAT_Vu)==BAT_Vu):(((batu)&BAT_Vs)==BAT_Vs)) 148 149 /* Lower BAT bits (PowerPC 601): */ 150 #define BAT601_PBN 0xfffe0000 /* physical block number */ 151 #define BAT601_V 0x00000040 /* valid */ 152 #define BAT601_BSM 0x0000003f /* block size mask */ 153 154 /* Upper BAT bits (PowerPC 601): */ 155 #define BAT601_BLPI 0xfffe0000 /* block logical page index */ 156 #define BAT601_W 0x00000040 /* 1 = write-through, 0 = write-back */ 157 #define BAT601_I 0x00000020 /* cache inhibit */ 158 #define BAT601_M 0x00000010 /* memory coherency enable */ 159 #define BAT601_Ks 0x00000008 /* key-supervisor */ 160 #define BAT601_Ku 0x00000004 /* key-user */ 161 162 /* 163 * Permission bits on the PowerPC 601 are modified by the appropriate 164 * Key bit: 165 * 166 * Key PP Access 167 * 0 NONE read/write 168 * 0 RO_S read/write 169 * 0 RW read/write 170 * 0 RO read-only 171 * 172 * 1 NONE none 173 * 1 RO_S read-only 174 * 1 RW read/write 175 * 1 RO read-only 176 */ 177 #define BAT601_PP 0x00000003 178 #define BAT601_PP_NONE 0x00000000 /* no access permission */ 179 #define BAT601_PP_RO_S 0x00000001 /* read-only (soft) */ 180 #define BAT601_PP_RW 0x00000002 /* read/write */ 181 #define BAT601_PP_RO 0x00000003 /* read-only */ 182 183 /* Block Size Mask encoding (PowerPC 601): */ 184 #define BAT601_BSM_128K 0x00000000 185 #define BAT601_BSM_256K 0x00000001 186 #define BAT601_BSM_512K 0x00000003 187 #define BAT601_BSM_1M 0x00000007 188 #define BAT601_BSM_2M 0x0000000f 189 #define BAT601_BSM_4M 0x0000001f 190 #define BAT601_BSM_8M 0x0000003f 191 192 #define BATU601(va, wim, key, pp) \ 193 (((va) & BAT601_BLPI) | (wim) | (key) | (pp)) 194 195 #define BATL601(pa, size, v) \ 196 (((pa) & BAT601_PBN) | (v) | (size)) 197 198 #define BAT601_VA_MATCH_P(batu, batl, va) \ 199 (((~(((batl)&BAT601_BSM)<<17))&(va)&BAT601_BLPI)==((batu)&BAT601_BLPI)) 200 201 #define BAT601_VALID_P(batl) \ 202 ((batl) & BAT601_V) 203 204 #define BAT_VA2IDX(va) ((va) >> ADDR_SR_SHFT) 205 206 #ifdef _KERNEL 207 #ifndef _LOCORE 208 void oea_batinit(paddr_t, ...); 209 void oea_iobat_add(paddr_t, register_t); 210 void oea_iobat_remove(paddr_t); 211 212 #if !defined (PPC_OEA64) 213 extern struct bat battable[]; 214 #endif /* PPC_OEA */ 215 #endif 216 #endif 217 218 #endif /* _POWERPC_OEA_BAT_H_ */ 219
Indexes created Sun Sep 28 16:09:52 GMT 2025