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 "cpu/static_inst.hh"
  37 #include "sim/faults.hh"
  38
  39 // The design of the "name" and "vect" functions is in sim/faults.hh
  40
  41 namespace SparcISA
  42 {
  43
  44 typedef uint32_t TrapType;
  45 typedef uint32_t FaultPriority;
  46
  47 class ITB;
  48
  49 class SparcFaultBase : public FaultBase
  50 {
  51   public:
  52     enum PrivilegeLevel
  53     {
  54         U, User = U,
  55         P, Privileged = P,
  56         H, Hyperprivileged = H,
  57         NumLevels,
  58         SH = -1,
  59         ShouldntHappen = SH
  60     };
  61     struct FaultVals
  62     {
  63         const FaultName name;
  64         const TrapType trapType;
  65         const FaultPriority priority;
  66         const PrivilegeLevel nextPrivilegeLevel[NumLevels];
  67         FaultStat count;
  68     };
  69 #if FULL_SYSTEM
  70     void invoke(ThreadContext * tc,
  71             StaticInstPtr inst = StaticInst::nullStaticInstPtr);
  72 #endif
  73     virtual TrapType trapType() = 0;
  74     virtual FaultPriority priority() = 0;
  75     virtual FaultStat & countStat() = 0;
  76     virtual PrivilegeLevel getNextLevel(PrivilegeLevel current) = 0;
  77 };
  78
  79 template<typename T>
  80 class SparcFault : public SparcFaultBase
  81 {
  82   protected:
  83     static FaultVals vals;
  84   public:
  85     FaultName name() const { return vals.name; }
  86     TrapType trapType() { return vals.trapType; }
  87     FaultPriority priority() { return vals.priority; }
  88     FaultStat & countStat() { return vals.count; }
  89
  90     PrivilegeLevel
  91     getNextLevel(PrivilegeLevel current)
  92     {
  93         return vals.nextPrivilegeLevel[current];
  94     }
  95 };
  96
  97 class PowerOnReset : public SparcFault<PowerOnReset>
  98 {
  99 #if FULL_SYSTEM
 100     void invoke(ThreadContext * tc,
 101             StaticInstPtr inst = StaticInst::nullStaticInstPtr);
 102 #endif
 103 };
 104
 105 class WatchDogReset : public SparcFault<WatchDogReset> {};
 106
 107 class ExternallyInitiatedReset : public SparcFault<ExternallyInitiatedReset> {};
 108
 109 class SoftwareInitiatedReset : public SparcFault<SoftwareInitiatedReset> {};
 110
 111 class REDStateException : public SparcFault<REDStateException> {};
 112
 113 class StoreError : public SparcFault<StoreError> {};
 114
 115 class InstructionAccessException : public SparcFault<InstructionAccessException> {};
 116
 117 // class InstructionAccessMMUMiss : public SparcFault<InstructionAccessMMUMiss> {};
 118
 119 class InstructionAccessError : public SparcFault<InstructionAccessError> {};
 120
 121 class IllegalInstruction : public SparcFault<IllegalInstruction> {};
 122
 123 class PrivilegedOpcode : public SparcFault<PrivilegedOpcode> {};
 124
 125 // class UnimplementedLDD : public SparcFault<UnimplementedLDD> {};
 126
 127 // class UnimplementedSTD : public SparcFault<UnimplementedSTD> {};
 128
 129 class FpDisabled : public SparcFault<FpDisabled> {};
 130
 131 class FpExceptionIEEE754 : public SparcFault<FpExceptionIEEE754> {};
 132
 133 class FpExceptionOther : public SparcFault<FpExceptionOther> {};
 134
 135 class TagOverflow : public SparcFault<TagOverflow> {};
 136
 137 class CleanWindow : public SparcFault<CleanWindow> {};
 138
 139 class DivisionByZero : public SparcFault<DivisionByZero> {};
 140
 141 class InternalProcessorError :
 142     public SparcFault<InternalProcessorError>
 143 {
 144   public:
 145     bool isMachineCheckFault() const { return true; }
 146 };
 147
 148 class InstructionInvalidTSBEntry :
 149     public SparcFault<InstructionInvalidTSBEntry> {};
 150
 151 class DataInvalidTSBEntry : public SparcFault<DataInvalidTSBEntry> {};
 152
 153 class DataAccessException : public SparcFault<DataAccessException> {};
 154
 155 // class DataAccessMMUMiss : public SparcFault<DataAccessMMUMiss> {};
 156
 157 class DataAccessError : public SparcFault<DataAccessError> {};
 158
 159 class DataAccessProtection : public SparcFault<DataAccessProtection> {};
 160
 161 class MemAddressNotAligned :
 162     public SparcFault<MemAddressNotAligned>
 163 {
 164   public:
 165     bool isAlignmentFault() const { return true; }
 166 };
 167
 168 class LDDFMemAddressNotAligned : public SparcFault<LDDFMemAddressNotAligned> {};
 169
 170 class STDFMemAddressNotAligned : public SparcFault<STDFMemAddressNotAligned> {};
 171
 172 class PrivilegedAction : public SparcFault<PrivilegedAction> {};
 173
 174 class LDQFMemAddressNotAligned : public SparcFault<LDQFMemAddressNotAligned> {};
 175
 176 class STQFMemAddressNotAligned : public SparcFault<STQFMemAddressNotAligned> {};
 177
 178 class InstructionRealTranslationMiss :
 179     public SparcFault<InstructionRealTranslationMiss> {};
 180
 181 class DataRealTranslationMiss : public SparcFault<DataRealTranslationMiss> {};
 182
 183 // class AsyncDataError : public SparcFault<AsyncDataError> {};
 184
 185 template <class T>
 186 class EnumeratedFault : public SparcFault<T>
 187 {
 188   protected:
 189     uint32_t _n;
 190   public:
 191     EnumeratedFault(uint32_t n) : SparcFault<T>(), _n(n) {}
 192     TrapType trapType() { return SparcFault<T>::trapType() + _n; }
 193 };
 194
 195 class InterruptLevelN : public EnumeratedFault<InterruptLevelN>
 196 {
 197   public:
 198     InterruptLevelN(uint32_t n) : EnumeratedFault<InterruptLevelN>(n) {;}
 199     FaultPriority priority() { return 3200 - _n*100; }
 200 };
 201
 202 class HstickMatch : public SparcFault<HstickMatch> {};
 203
 204 class TrapLevelZero : public SparcFault<TrapLevelZero> {};
 205
 206 class InterruptVector : public SparcFault<InterruptVector> {};
 207
 208 class PAWatchpoint : public SparcFault<PAWatchpoint> {};
 209
 210 class VAWatchpoint : public SparcFault<VAWatchpoint> {};
 211
 212 class FastInstructionAccessMMUMiss :
 213     public SparcFault<FastInstructionAccessMMUMiss>
 214 {
 215 #if !FULL_SYSTEM
 216   protected:
 217     Addr vaddr;
 218   public:
 219     FastInstructionAccessMMUMiss(Addr addr) : vaddr(addr)
 220     {}
 221     void invoke(ThreadContext * tc,
 222             StaticInstPtr inst = StaticInst::nullStaticInstPtr);
 223 #endif
 224 };
 225
 226 class FastDataAccessMMUMiss : public SparcFault<FastDataAccessMMUMiss>
 227 {
 228 #if !FULL_SYSTEM
 229   protected:
 230     Addr vaddr;
 231   public:
 232     FastDataAccessMMUMiss(Addr addr) : vaddr(addr)
 233     {}
 234     void invoke(ThreadContext * tc,
 235             StaticInstPtr inst = StaticInst::nullStaticInstPtr);
 236 #endif
 237 };
 238
 239 class FastDataAccessProtection : public SparcFault<FastDataAccessProtection> {};
 240
 241 class InstructionBreakpoint : public SparcFault<InstructionBreakpoint> {};
 242
 243 class CpuMondo : public SparcFault<CpuMondo> {};
 244
 245 class DevMondo : public SparcFault<DevMondo> {};
 246
 247 class ResumableError : public SparcFault<ResumableError> {};
 248
 249 class SpillNNormal : public EnumeratedFault<SpillNNormal>
 250 {
 251   public:
 252     SpillNNormal(uint32_t n) : EnumeratedFault<SpillNNormal>(n) {;}
 253     // These need to be handled specially to enable spill traps in SE
 254 #if !FULL_SYSTEM
 255     void invoke(ThreadContext * tc,
 256             StaticInstPtr inst = StaticInst::nullStaticInstPtr);
 257 #endif
 258 };
 259
 260 class SpillNOther : public EnumeratedFault<SpillNOther>
 261 {
 262   public:
 263     SpillNOther(uint32_t n) : EnumeratedFault<SpillNOther>(n)
 264     {}
 265 };
 266
 267 class FillNNormal : public EnumeratedFault<FillNNormal>
 268 {
 269   public:
 270     FillNNormal(uint32_t n) : EnumeratedFault<FillNNormal>(n)
 271     {}
 272     // These need to be handled specially to enable fill traps in SE
 273 #if !FULL_SYSTEM
 274     void invoke(ThreadContext * tc,
 275             StaticInstPtr inst = StaticInst::nullStaticInstPtr);
 276 #endif
 277 };
 278
 279 class FillNOther : public EnumeratedFault<FillNOther>
 280 {
 281   public:
 282     FillNOther(uint32_t n) : EnumeratedFault<FillNOther>(n)
 283     {}
 284 };
 285
 286 class TrapInstruction : public EnumeratedFault<TrapInstruction>
 287 {
 288   public:
 289     TrapInstruction(uint32_t n) : EnumeratedFault<TrapInstruction>(n)
 290     {}
 291     // In SE, trap instructions are requesting services from the OS.
 292 #if !FULL_SYSTEM
 293     void invoke(ThreadContext * tc,
 294             StaticInstPtr inst = StaticInst::nullStaticInstPtr);
 295 #endif
 296 };
 297
 298 static inline Fault
 299 genMachineCheckFault()
 300 {
 301     return new InternalProcessorError;
 302 }
 303
 304
 305 } // namespace SparcISA
 306
 307 #endif // __SPARC_FAULTS_HH__