miscregs.hh revision 7265
1/* 2 * Copyright (c) 2010 ARM Limited 3 * All rights reserved 4 * 5 * The license below extends only to copyright in the software and shall 6 * not be construed as granting a license to any other intellectual 7 * property including but not limited to intellectual property relating 8 * to a hardware implementation of the functionality of the software 9 * licensed hereunder. You may use the software subject to the license 10 * terms below provided that you ensure that this notice is replicated 11 * unmodified and in its entirety in all distributions of the software, 12 * modified or unmodified, in source code or in binary form. 13 * 14 * Copyright (c) 2009 The Regents of The University of Michigan 15 * All rights reserved. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions are 19 * met: redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer; 21 * redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution; 24 * neither the name of the copyright holders nor the names of its 25 * contributors may be used to endorse or promote products derived from 26 * this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 39 * 40 * Authors: Gabe Black 41 */ 42#ifndef __ARCH_ARM_MISCREGS_HH__ 43#define __ARCH_ARM_MISCREGS_HH__ 44 45#include "base/bitunion.hh" 46 47namespace ArmISA 48{ 49 enum ConditionCode { 50 COND_EQ = 0, 51 COND_NE, // 1 52 COND_CS, // 2 53 COND_CC, // 3 54 COND_MI, // 4 55 COND_PL, // 5 56 COND_VS, // 6 57 COND_VC, // 7 58 COND_HI, // 8 59 COND_LS, // 9 60 COND_GE, // 10 61 COND_LT, // 11 62 COND_GT, // 12 63 COND_LE, // 13 64 COND_AL, // 14 65 COND_UC // 15 66 }; 67 68 enum MiscRegIndex { 69 MISCREG_CPSR = 0, 70 MISCREG_SPSR, 71 MISCREG_SPSR_FIQ, 72 MISCREG_SPSR_IRQ, 73 MISCREG_SPSR_SVC, 74 MISCREG_SPSR_MON, 75 MISCREG_SPSR_UND, 76 MISCREG_SPSR_ABT, 77 MISCREG_FPSR, 78 MISCREG_FPSID, 79 MISCREG_FPSCR, 80 MISCREG_FPEXC, 81 82 // CP15 registers 83 MISCREG_CP15_START, 84 MISCREG_SCTLR = MISCREG_CP15_START, 85 MISCREG_DCCISW, 86 MISCREG_CONTEXTIDR, 87 MISCREG_CP15_UNIMP_START, 88 MISCREG_CTR = MISCREG_CP15_UNIMP_START, 89 MISCREG_TCMTR, 90 MISCREG_MPUIR, 91 MISCREG_MPIDR, 92 MISCREG_MIDR, 93 MISCREG_ID_PFR0, 94 MISCREG_ID_PFR1, 95 MISCREG_ID_DFR0, 96 MISCREG_ID_AFR0, 97 MISCREG_ID_MMFR0, 98 MISCREG_ID_MMFR1, 99 MISCREG_ID_MMFR2, 100 MISCREG_ID_MMFR3, 101 MISCREG_ID_ISAR0, 102 MISCREG_ID_ISAR1, 103 MISCREG_ID_ISAR2, 104 MISCREG_ID_ISAR3, 105 MISCREG_ID_ISAR4, 106 MISCREG_ID_ISAR5, 107 MISCREG_CCSIDR, 108 MISCREG_CLIDR, 109 MISCREG_AIDR, 110 MISCREG_CSSELR, 111 MISCREG_ACTLR, 112 MISCREG_CPACR, 113 MISCREG_DFSR, 114 MISCREG_IFSR, 115 MISCREG_ADFSR, 116 MISCREG_AIFSR, 117 MISCREG_DFAR, 118 MISCREG_IFAR, 119 MISCREG_DRBAR, 120 MISCREG_IRBAR, 121 MISCREG_DRSR, 122 MISCREG_IRSR, 123 MISCREG_DRACR, 124 MISCREG_IRACR, 125 MISCREG_RGNR, 126 MISCREG_ICIALLUIS, 127 MISCREG_BPIALLIS, 128 MISCREG_ICIALLU, 129 MISCREG_ICIMVAU, 130 MISCREG_CP15ISB, 131 MISCREG_BPIALL, 132 MISCREG_BPIMVA, 133 MISCREG_DCIMVAC, 134 MISCREG_DCISW, 135 MISCREG_DCCMVAC, 136 MISCREG_MCCSW, 137 MISCREG_CP15DSB, 138 MISCREG_CP15DMB, 139 MISCREG_DCCMVAU, 140 MISCREG_DCCIMVAC, 141 MISCREG_TPIDRURW, 142 MISCREG_TPIDRURO, 143 MISCREG_TPIDRPRW, 144 145 MISCREG_CP15_END, 146 147 // Dummy indices 148 MISCREG_NOP = MISCREG_CP15_END, 149 MISCREG_RAZ, 150 151 NUM_MISCREGS 152 }; 153 154 MiscRegIndex decodeCP15Reg(unsigned crn, unsigned opc1, 155 unsigned crm, unsigned opc2); 156 157 const char * const miscRegName[NUM_MISCREGS] = { 158 "cpsr", "spsr", "spsr_fiq", "spsr_irq", "spsr_svc", 159 "spsr_mon", "spsr_und", "spsr_abt", 160 "fpsr", "fpsid", "fpscr", "fpexc", 161 "sctlr", "dccisw", "contextidr", "ctr", "tcmtr", "mpuir", "mpidr", "midr", 162 "id_pfr0", "id_pfr1", "id_dfr0", "id_afr0", 163 "id_mmfr0", "id_mmfr1", "id_mmfr2", "id_mmfr3", 164 "id_isar0", "id_isar1", "id_isar2", "id_isar3", "id_isar4", "id_isar5", 165 "ccsidr", "clidr", "aidr", "csselr", "actlr", "cpacr", 166 "dfsr", "ifsr", "adfsr", "aifsr", "dfar", "ifar", 167 "drbar", "irbar", "drsr", "irsr", "dracr", "iracr", 168 "rgnr", "icialluis", "bpiallis", "iciallu", "icimvau", 169 "cp15isb", "bpiall", "bpimva", "dcimvac", "dcisw", "dccmvac", "mccsw", 170 "cp15dsb", "cp15dmb", "dccmvau", "dccimvac", 171 "tpidrurw", "tpidruro", "tpidrprw", 172 "nop", "raz" 173 }; 174 175 BitUnion32(CPSR) 176 Bitfield<31> n; 177 Bitfield<30> z; 178 Bitfield<29> c; 179 Bitfield<28> v; 180 Bitfield<27> q; 181 Bitfield<26,25> it1; 182 Bitfield<24> j; 183 Bitfield<19, 16> ge; 184 Bitfield<15,10> it2; 185 Bitfield<9> e; 186 Bitfield<8> a; 187 Bitfield<7> i; 188 Bitfield<6> f; 189 Bitfield<5> t; 190 Bitfield<4, 0> mode; 191 EndBitUnion(CPSR) 192 193 // This mask selects bits of the CPSR that actually go in the CondCodes 194 // integer register to allow renaming. 195 static const uint32_t CondCodesMask = 0xF80F0000; 196 197 // These otherwise unused bits of the PC are used to select a mode 198 // like the J and T bits of the CPSR. 199 static const Addr PcJBitShift = 33; 200 static const Addr PcTBitShift = 34; 201 static const Addr PcModeMask = (ULL(1) << PcJBitShift) | 202 (ULL(1) << PcTBitShift); 203 204 BitUnion32(SCTLR) 205 Bitfield<30> te; // Thumb Exception Enable 206 Bitfield<29> afe; // Access flag enable 207 Bitfield<28> tre; // TEX Remap bit 208 Bitfield<27> nmfi;// Non-maskable fast interrupts enable 209 Bitfield<25> ee; // Exception Endianness bit 210 Bitfield<24> ve; // Interrupt vectors enable 211 Bitfield<23> rao1;// Read as one 212 Bitfield<22> u; // Alignment (now unused) 213 Bitfield<21> fi; // Fast interrupts configuration enable 214 Bitfield<18> rao2;// Read as one 215 Bitfield<17> ha; // Hardware access flag enable 216 Bitfield<16> rao3;// Read as one 217 Bitfield<14> rr; // Round robin cache replacement 218 Bitfield<13> v; // Base address for exception vectors 219 Bitfield<12> i; // instruction cache enable 220 Bitfield<11> z; // branch prediction enable bit 221 Bitfield<10> sw; // Enable swp/swpb 222 Bitfield<6,3> rao4;// Read as one 223 Bitfield<7> b; // Endianness support (unused) 224 Bitfield<2> c; // Cache enable bit 225 Bitfield<1> a; // Alignment fault checking 226 Bitfield<0> m; // MMU enable bit 227 EndBitUnion(SCTLR) 228}; 229 230#endif // __ARCH_ARM_MISCREGS_HH__ 231