1 /* $NetBSD: r3900regs.h,v 1.8 2020/07/26 08:08:41 simonb Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 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 * [address space] 34 * kseg2 0xc0000000 - 0xfeffffff 35 * reserved 0xff000000 - 0xfffeffff 36 * kseg2 0xffff0000 - 0xffffffff 37 * -> vmparam.h VM_MAX_KERNEL_ADDRESS 38 */ 39 40 /* 41 * [cause register] 42 */ 43 #define R3900_CR_EXC_CODE MIPS3_CR_EXC_CODE /* five bits */ 44 #undef MIPS1_CR_EXC_CODE 45 #define MIPS1_CR_EXC_CODE R3900_CR_EXC_CODE 46 47 /* 48 * [status register] 49 * R3900 don't have PE, CM, PZ, SwC and IsC. 50 */ 51 #define R3900_SR_NMI 0x00100000 /* r3k PE position */ 52 #if 0 53 #undef MIPS1_PARITY_ERR 54 #undef MIPS1_CACHE_MISS 55 #undef MIPS1_PARITY_ZERO 56 #undef MIPS1_SWAP_CACHES 57 #undef MIPS1_ISOL_CACHES 58 #endif 59 60 /* 61 * [context register] 62 * - no changes. 63 */ 64 65 66 /* 67 * TX3900 Coprocessor 0 registers 68 */ 69 #define R3900_COP_0_CONFIG $3 70 #define R3900_COP_0_DEBUG $16 71 #define R3900_COP_0_DEPC $17 72 73 #define R3920_COP_0_PAGEMASK $5 74 #define R3920_COP_0_WIRED $6 75 #define R3920_COP_0_CACHE $7 76 #define R3920_COP_0_TAG_LO $20 77 78 /* 79 * TLB entry 80 * 3912 ... TLB entry is 64bits wide and R3000A compatible 81 * 3922 ... TLB entry is 96bits wide 82 */ 83 84 /* 85 * Config register (R3900 specific) 86 */ 87 #define R3900_CONFIG_ICS_SHIFT 19 88 #define R3900_CONFIG_ICS_MASK 0x00380000 89 #define R3900_CONFIG_ICS_1KB 0x00000000 90 #define R3900_CONFIG_ICS_2KB 0x00080000 91 #define R3900_CONFIG_ICS_4KB 0x00100000 92 #define R3900_CONFIG_ICS_8KB 0x00180000 93 #define R3900_CONFIG_ICS_16KB 0x00200000 94 95 #define R3900_CONFIG_DCS_SHIFT 16 96 #define R3900_CONFIG_DCS_1KB 0x00000000 97 #define R3900_CONFIG_DCS_2KB 0x00010000 98 #define R3900_CONFIG_DCS_4KB 0x00020000 99 #define R3900_CONFIG_DCS_8KB 0x00030000 100 #define R3900_CONFIG_DCS_16KB 0x00040000 101 102 #define R3900_CONFIG_DCS_MASK 0x00070000 103 #define R3900_CONFIG_CWFON 0x00004000 104 #define R3900_CONFIG_WBON 0x00002000 105 #define R3900_CONFIG_RF_SHIFT 10 106 #define R3900_CONFIG_RF_MASK 0x00000c00 107 #define R3900_CONFIG_DOZE 0x00000200 108 #define R3900_CONFIG_HALT 0x00000100 109 #define R3900_CONFIG_LOCK 0x00000080 110 #define R3900_CONFIG_ICE 0x00000020 111 #define R3900_CONFIG_DCE 0x00000010 112 #define R3900_CONFIG_IRSIZE_SHIFT 2 113 #define R3900_CONFIG_IRSIZE_MASK 0x0000000c 114 #define R3900_CONFIG_DRSIZE_SHIFT 0 115 #define R3900_CONFIG_DRSIZE_MASK 0x00000003 116 117 /* 118 * CACHE 119 */ 120 /* Cache size (limit) */ 121 /* R3900/R3920 */ 122 #define R3900_C_SIZE_MIN 1024 123 #define R3900_C_SIZE_MAX 8192 124 /* Cache line size */ 125 /* R3900 */ 126 #define R3900_C_LSIZE_I 16 127 #define R3900_C_LSIZE_D 4 128 /* R3920 */ 129 #define R3920_C_LSIZE_I 16 130 #define R3920_C_LSIZE_D 16 131 /* Cache operation */ 132 /* R3900 */ 133 #define R3900_C_IINV_I 0x00 134 #define R3900_C_IWBINV_D 0x01 135 #define R3900_C_ILRUC_I 0x04 136 #define R3900_C_ILRUC_D 0x05 137 #define R3900_C_ILCKC_D 0x09 /* R3900 only */ 138 #define R3900_C_HINV_D 0x11 139 /* R3920 */ 140 #define R3920_C_IINV_I 0x00 141 #define R3920_C_IWBINV_D 0x01 142 #define R3920_C_ILRUC_I 0x04 143 #define R3920_C_ILRUC_D 0x05 144 #define R3920_C_ILDTAG_I 0x0c /* R3920 only */ 145 #define R3920_C_ILDTAG_D 0x0d /* R3920 only */ 146 #define R3920_C_HINV_I 0x10 /* R3920 only */ 147 #define R3920_C_HINV_D 0x11 148 #define R3920_C_HWBINV_D 0x14 /* R3920 only */ 149 #define R3920_C_HWB_D 0x18 /* R3920 only */ 150 #define R3920_C_ISTTAG_I 0x1c /* R3920 only */ 151 #define R3920_C_ISTTAG_D 0x1d /* R3920 only */ 152