src/arch/sparc/faults.hh

   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 "config/full_system.hh"
  36 #include "sim/faults.hh"
  37
  38 // The design of the "name" and "vect" functions is in sim/faults.hh
  39
  40 namespace SparcISA
  41 {
  42
  43 typedef uint32_t TrapType;
  44 typedef uint32_t FaultPriority;
  45
  46 class ITB;
  47
  48 class SparcFaultBase : public FaultBase
  49 {
  50   public:
  51     enum PrivilegeLevel
  52     {
  53         U, User = U,
  54         P, Privileged = P,
  55         H, Hyperprivileged = H,
  56         NumLevels,
  57         SH = -1,
  58         ShouldntHappen = SH
  59     };
  60     struct FaultVals
  61     {
  62         const FaultName name;
  63         const TrapType trapType;
  64         const FaultPriority priority;
  65         const PrivilegeLevel nextPrivilegeLevel[NumLevels];
  66         FaultStat count;
  67     };
  68 #if FULL_SYSTEM
  69     void invoke(ThreadContext * tc);
  70 #endif
  71     virtual TrapType trapType() = 0;
  72     virtual FaultPriority priority() = 0;
  73     virtual FaultStat & countStat() = 0;
  74     virtual PrivilegeLevel getNextLevel(PrivilegeLevel current) = 0;
  75 };
  76
  77 template<typename T>
  78 class SparcFault : public SparcFaultBase
  79 {
  80   protected:
  81     static FaultVals vals;
  82   public:
  83     FaultName name() const {return vals.name;}
  84     TrapType trapType() {return vals.trapType;}
  85     FaultPriority priority() {return vals.priority;}
  86     FaultStat & countStat() {return vals.count;}
  87     PrivilegeLevel getNextLevel(PrivilegeLevel current)
  88     {
  89         return vals.nextPrivilegeLevel[current];
  90     }
  91 };
  92
  93 class PowerOnReset : public SparcFault<PowerOnReset>
  94 {
  95     void invoke(ThreadContext * tc);
  96 };
  97
  98 class WatchDogReset : public SparcFault<WatchDogReset> {};
  99
 100 class ExternallyInitiatedReset : public SparcFault<ExternallyInitiatedReset> {};
 101
 102 class SoftwareInitiatedReset : public SparcFault<SoftwareInitiatedReset> {};
 103
 104 class REDStateException : public SparcFault<REDStateException> {};
 105
 106 class StoreError : public SparcFault<StoreError> {};
 107
 108 class InstructionAccessException : public SparcFault<InstructionAccessException> {};
 109
 110 //class InstructionAccessMMUMiss : public SparcFault<InstructionAccessMMUMiss> {};
 111
 112 class InstructionAccessError : public SparcFault<InstructionAccessError> {};
 113
 114 class IllegalInstruction : public SparcFault<IllegalInstruction> {};
 115
 116 class PrivilegedOpcode : public SparcFault<PrivilegedOpcode> {};
 117
 118 //class UnimplementedLDD : public SparcFault<UnimplementedLDD> {};
 119
 120 //class UnimplementedSTD : public SparcFault<UnimplementedSTD> {};
 121
 122 class FpDisabled : public SparcFault<FpDisabled> {};
 123
 124 class FpExceptionIEEE754 : public SparcFault<FpExceptionIEEE754> {};
 125
 126 class FpExceptionOther : public SparcFault<FpExceptionOther> {};
 127
 128 class TagOverflow : public SparcFault<TagOverflow> {};
 129
 130 class CleanWindow : public SparcFault<CleanWindow> {};
 131
 132 class DivisionByZero : public SparcFault<DivisionByZero> {};
 133
 134 class InternalProcessorError :
 135     public SparcFault<InternalProcessorError>
 136 {
 137   public:
 138     bool isMachineCheckFault() const {return true;}
 139 };
 140
 141 class InstructionInvalidTSBEntry : public SparcFault<InstructionInvalidTSBEntry> {};
 142
 143 class DataInvalidTSBEntry : public SparcFault<DataInvalidTSBEntry> {};
 144
 145 class DataAccessException : public SparcFault<DataAccessException> {};
 146
 147 //class DataAccessMMUMiss : public SparcFault<DataAccessMMUMiss> {};
 148
 149 class DataAccessError : public SparcFault<DataAccessError> {};
 150
 151 class DataAccessProtection : public SparcFault<DataAccessProtection> {};
 152
 153 class MemAddressNotAligned :
 154     public SparcFault<MemAddressNotAligned>
 155 {
 156   public:
 157     bool isAlignmentFault() const {return true;}
 158 };
 159
 160 class LDDFMemAddressNotAligned : public SparcFault<LDDFMemAddressNotAligned> {};
 161
 162 class STDFMemAddressNotAligned : public SparcFault<STDFMemAddressNotAligned> {};
 163
 164 class PrivilegedAction : public SparcFault<PrivilegedAction> {};
 165
 166 class LDQFMemAddressNotAligned : public SparcFault<LDQFMemAddressNotAligned> {};
 167
 168 class STQFMemAddressNotAligned : public SparcFault<STQFMemAddressNotAligned> {};
 169
 170 class InstructionRealTranslationMiss :
 171     public SparcFault<InstructionRealTranslationMiss> {};
 172
 173 class DataRealTranslationMiss : public SparcFault<DataRealTranslationMiss> {};
 174
 175 //class AsyncDataError : public SparcFault<AsyncDataError> {};
 176
 177 template <class T>
 178 class EnumeratedFault : public SparcFault<T>
 179 {
 180   protected:
 181     uint32_t _n;
 182   public:
 183     EnumeratedFault(uint32_t n) : SparcFault<T>(), _n(n) {}
 184     TrapType trapType() {return SparcFault<T>::trapType() + _n;}
 185 };
 186
 187 class InterruptLevelN : public EnumeratedFault<InterruptLevelN>
 188 {
 189   public:
 190     InterruptLevelN(uint32_t n) : EnumeratedFault<InterruptLevelN>(n) {;}
 191     FaultPriority priority() {return 3200 - _n*100;}
 192 };
 193
 194 class HstickMatch : public SparcFault<HstickMatch> {};
 195
 196 class TrapLevelZero : public SparcFault<TrapLevelZero> {};
 197
 198 class InterruptVector : public SparcFault<InterruptVector> {};
 199
 200 class PAWatchpoint : public SparcFault<PAWatchpoint> {};
 201
 202 class VAWatchpoint : public SparcFault<VAWatchpoint> {};
 203
 204 class FastInstructionAccessMMUMiss :
 205     public SparcFault<FastInstructionAccessMMUMiss>
 206 {
 207 #if !FULL_SYSTEM
 208   protected:
 209     Addr vaddr;
 210   public:
 211     FastInstructionAccessMMUMiss(Addr addr) : vaddr(addr)
 212     {}
 213     void invoke(ThreadContext * tc);
 214 #endif
 215 };
 216
 217 class FastDataAccessMMUMiss : public SparcFault<FastDataAccessMMUMiss>
 218 {
 219 #if !FULL_SYSTEM
 220   protected:
 221     Addr vaddr;
 222   public:
 223     FastDataAccessMMUMiss(Addr addr) : vaddr(addr)
 224     {}
 225     void invoke(ThreadContext * tc);
 226 #endif
 227 };
 228
 229 class FastDataAccessProtection : public SparcFault<FastDataAccessProtection> {};
 230
 231 class InstructionBreakpoint : public SparcFault<InstructionBreakpoint> {};
 232
 233 class CpuMondo : public SparcFault<CpuMondo> {};
 234
 235 class DevMondo : public SparcFault<DevMondo> {};
 236
 237 class ResumableError : public SparcFault<ResumableError> {};
 238
 239 class SpillNNormal : public EnumeratedFault<SpillNNormal>
 240 {
 241   public:
 242     SpillNNormal(uint32_t n) : EnumeratedFault<SpillNNormal>(n) {;}
 243     //These need to be handled specially to enable spill traps in SE
 244 #if !FULL_SYSTEM
 245     void invoke(ThreadContext * tc);
 246 #endif
 247 };
 248
 249 class SpillNOther : public EnumeratedFault<SpillNOther>
 250 {
 251   public:
 252     SpillNOther(uint32_t n) : EnumeratedFault<SpillNOther>(n) {;}
 253 };
 254
 255 class FillNNormal : public EnumeratedFault<FillNNormal>
 256 {
 257   public:
 258     FillNNormal(uint32_t n) : EnumeratedFault<FillNNormal>(n) {;}
 259     //These need to be handled specially to enable fill traps in SE
 260 #if !FULL_SYSTEM
 261     void invoke(ThreadContext * tc);
 262 #endif
 263 };
 264
 265 class FillNOther : public EnumeratedFault<FillNOther>
 266 {
 267   public:
 268     FillNOther(uint32_t n) : EnumeratedFault<FillNOther>(n) {;}
 269 };
 270
 271 class TrapInstruction : public EnumeratedFault<TrapInstruction>
 272 {
 273   public:
 274     TrapInstruction(uint32_t n) : EnumeratedFault<TrapInstruction>(n) {;}
 275     //In SE, trap instructions are requesting services from the OS.
 276 #if !FULL_SYSTEM
 277     void invoke(ThreadContext * tc);
 278 #endif
 279 };
 280
 281 static inline Fault genMachineCheckFault()
 282 {
 283     return new InternalProcessorError;
 284 }
 285
 286
 287 } // SparcISA namespace
 288
 289 #endif // __SPARC_FAULTS_HH__