faults.hh revision 4695
1/* 2 * Copyright (c) 2003-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Gabe Black 29 * Kevin Lim 30 */ 31 32#ifndef __SPARC_FAULTS_HH__ 33#define __SPARC_FAULTS_HH__ 34 35#include "sim/faults.hh" 36 37// The design of the "name" and "vect" functions is in sim/faults.hh 38 39namespace SparcISA 40{ 41 42typedef uint32_t TrapType; 43typedef uint32_t FaultPriority; 44 45class SparcFaultBase : public FaultBase 46{ 47 public: 48 enum PrivilegeLevel 49 { 50 U, User = U, 51 P, Privileged = P, 52 H, Hyperprivileged = H, 53 NumLevels, 54 SH = -1, 55 ShouldntHappen = SH 56 }; 57 struct FaultVals 58 { 59 const FaultName name; 60 const TrapType trapType; 61 const FaultPriority priority; 62 const PrivilegeLevel nextPrivilegeLevel[NumLevels]; 63 FaultStat count; 64 }; 65#if FULL_SYSTEM 66 void invoke(ThreadContext * tc); 67#endif 68 virtual TrapType trapType() = 0; 69 virtual FaultPriority priority() = 0; 70 virtual FaultStat & countStat() = 0; 71 virtual PrivilegeLevel getNextLevel(PrivilegeLevel current) = 0; 72}; 73 74template<typename T> 75class SparcFault : public SparcFaultBase 76{ 77 protected: 78 static FaultVals vals; 79 public: 80 FaultName name() const {return vals.name;} 81 TrapType trapType() {return vals.trapType;} 82 FaultPriority priority() {return vals.priority;} 83 FaultStat & countStat() {return vals.count;} 84 PrivilegeLevel getNextLevel(PrivilegeLevel current) 85 { 86 return vals.nextPrivilegeLevel[current]; 87 } 88}; 89 90class PowerOnReset : public SparcFault<PowerOnReset> 91{ 92 void invoke(ThreadContext * tc); 93}; 94 95class WatchDogReset : public SparcFault<WatchDogReset> {}; 96 97class ExternallyInitiatedReset : public SparcFault<ExternallyInitiatedReset> {}; 98 99class SoftwareInitiatedReset : public SparcFault<SoftwareInitiatedReset> {}; 100 101class REDStateException : public SparcFault<REDStateException> {}; 102 103class StoreError : public SparcFault<StoreError> {}; 104 105class InstructionAccessException : public SparcFault<InstructionAccessException> {}; 106 107//class InstructionAccessMMUMiss : public SparcFault<InstructionAccessMMUMiss> {}; 108 109class InstructionAccessError : public SparcFault<InstructionAccessError> {}; 110 111class IllegalInstruction : public SparcFault<IllegalInstruction> {}; 112 113class PrivilegedOpcode : public SparcFault<PrivilegedOpcode> {}; 114 115//class UnimplementedLDD : public SparcFault<UnimplementedLDD> {}; 116 117//class UnimplementedSTD : public SparcFault<UnimplementedSTD> {}; 118 119class FpDisabled : public SparcFault<FpDisabled> {}; 120 121class FpExceptionIEEE754 : public SparcFault<FpExceptionIEEE754> {}; 122 123class FpExceptionOther : public SparcFault<FpExceptionOther> {}; 124 125class TagOverflow : public SparcFault<TagOverflow> {}; 126 127class CleanWindow : public SparcFault<CleanWindow> {}; 128 129class DivisionByZero : public SparcFault<DivisionByZero> {}; 130 131class InternalProcessorError : 132 public SparcFault<InternalProcessorError> 133{ 134 public: 135 bool isMachineCheckFault() const {return true;} 136}; 137 138class InstructionInvalidTSBEntry : public SparcFault<InstructionInvalidTSBEntry> {}; 139 140class DataInvalidTSBEntry : public SparcFault<DataInvalidTSBEntry> {}; 141 142class DataAccessException : public SparcFault<DataAccessException> {}; 143 144//class DataAccessMMUMiss : public SparcFault<DataAccessMMUMiss> {}; 145 146class DataAccessError : public SparcFault<DataAccessError> {}; 147 148class DataAccessProtection : public SparcFault<DataAccessProtection> {}; 149 150class MemAddressNotAligned : 151 public SparcFault<MemAddressNotAligned> 152{ 153 public: 154 bool isAlignmentFault() const {return true;} 155}; 156 157class LDDFMemAddressNotAligned : public SparcFault<LDDFMemAddressNotAligned> {}; 158 159class STDFMemAddressNotAligned : public SparcFault<STDFMemAddressNotAligned> {}; 160 161class PrivilegedAction : public SparcFault<PrivilegedAction> {}; 162 163class LDQFMemAddressNotAligned : public SparcFault<LDQFMemAddressNotAligned> {}; 164 165class STQFMemAddressNotAligned : public SparcFault<STQFMemAddressNotAligned> {}; 166 167class InstructionRealTranslationMiss : 168 public SparcFault<InstructionRealTranslationMiss> {}; 169 170class DataRealTranslationMiss : public SparcFault<DataRealTranslationMiss> {}; 171 172//class AsyncDataError : public SparcFault<AsyncDataError> {}; 173 174template <class T> 175class EnumeratedFault : public SparcFault<T> 176{ 177 protected: 178 uint32_t _n; 179 public: 180 EnumeratedFault(uint32_t n) : SparcFault<T>(), _n(n) {} 181 TrapType trapType() {return SparcFault<T>::trapType() + _n;} 182}; 183 184class InterruptLevelN : public EnumeratedFault<InterruptLevelN> 185{ 186 public: 187 InterruptLevelN(uint32_t n) : EnumeratedFault<InterruptLevelN>(n) {;} 188 FaultPriority priority() {return 3200 - _n*100;} 189}; 190 191class HstickMatch : public SparcFault<HstickMatch> {}; 192 193class TrapLevelZero : public SparcFault<TrapLevelZero> {}; 194 195class InterruptVector : public SparcFault<InterruptVector> {}; 196 197class PAWatchpoint : public SparcFault<PAWatchpoint> {}; 198 199class VAWatchpoint : public SparcFault<VAWatchpoint> {}; 200 201class FastInstructionAccessMMUMiss : 202 public SparcFault<FastInstructionAccessMMUMiss> {}; 203 204class FastDataAccessMMUMiss : public SparcFault<FastDataAccessMMUMiss> {}; 205 206class FastDataAccessProtection : public SparcFault<FastDataAccessProtection> {}; 207 208class InstructionBreakpoint : public SparcFault<InstructionBreakpoint> {}; 209 210class CpuMondo : public SparcFault<CpuMondo> {}; 211 212class DevMondo : public SparcFault<DevMondo> {}; 213 214class ResumableError : public SparcFault<ResumableError> {}; 215 216class SpillNNormal : public EnumeratedFault<SpillNNormal> 217{ 218 public: 219 SpillNNormal(uint32_t n) : EnumeratedFault<SpillNNormal>(n) {;} 220 //These need to be handled specially to enable spill traps in SE 221#if !FULL_SYSTEM 222 void invoke(ThreadContext * tc); 223#endif 224}; 225 226class SpillNOther : public EnumeratedFault<SpillNOther> 227{ 228 public: 229 SpillNOther(uint32_t n) : EnumeratedFault<SpillNOther>(n) {;} 230}; 231 232class FillNNormal : public EnumeratedFault<FillNNormal> 233{ 234 public: 235 FillNNormal(uint32_t n) : EnumeratedFault<FillNNormal>(n) {;} 236 //These need to be handled specially to enable fill traps in SE 237#if !FULL_SYSTEM 238 void invoke(ThreadContext * tc); 239#endif 240}; 241 242class FillNOther : public EnumeratedFault<FillNOther> 243{ 244 public: 245 FillNOther(uint32_t n) : EnumeratedFault<FillNOther>(n) {;} 246}; 247 248class TrapInstruction : public EnumeratedFault<TrapInstruction> 249{ 250 public: 251 TrapInstruction(uint32_t n) : EnumeratedFault<TrapInstruction>(n) {;} 252 //In SE, trap instructions are requesting services from the OS. 253#if !FULL_SYSTEM 254 void invoke(ThreadContext * tc); 255#endif 256}; 257 258static inline Fault genMachineCheckFault() 259{ 260 return new InternalProcessorError; 261} 262 263static inline Fault genAlignmentFault() 264{ 265 return new MemAddressNotAligned; 266} 267 268 269} // SparcISA namespace 270 271#endif // __SPARC_FAULTS_HH__ 272