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 __ALPHA_FAULTS_HH__
  33 #define __ALPHA_FAULTS_HH__
  34
  35 #include "sim/faults.hh"
  36
  37 // The design of the "name" and "vect" functions is in sim/faults.hh
  38
  39 namespace SparcISA
  40 {
  41
  42 typedef uint32_t TrapType;
  43 typedef uint32_t FaultPriority;
  44
  45 class SparcFaultBase : public FaultBase
  46 {
  47   public:
  48     struct FaultVals
  49     {
  50         const FaultName name;
  51         const TrapType trapType;
  52         const FaultPriority priority;
  53         FaultStat count;
  54     };
  55 #if FULL_SYSTEM
  56     void invoke(ThreadContext * tc);
  57 #endif
  58     virtual FaultName name() = 0;
  59     virtual TrapType trapType() = 0;
  60     virtual FaultPriority priority() = 0;
  61     virtual FaultStat & countStat() = 0;
  62 };
  63
  64 template<typename T>
  65 class SparcFault : public SparcFaultBase
  66 {
  67   protected:
  68     static FaultVals vals;
  69   public:
  70     FaultName name() {return vals.name;}
  71     TrapType trapType() {return vals.trapType;}
  72     FaultPriority priority() {return vals.priority;}
  73     FaultStat & countStat() {return vals.count;}
  74 };
  75
  76 class InternalProcessorError :
  77     public SparcFault<InternalProcessorError>
  78 {
  79   public:
  80     bool isMachineCheckFault() {return true;}
  81 };
  82
  83 class MemAddressNotAligned :
  84     public SparcFault<MemAddressNotAligned>
  85 {
  86   public:
  87     bool isAlignmentFault() {return true;}
  88 };
  89
  90 #if !FULL_SYSTEM
  91 class PageTableFault : public SparcFault<PageTableFault>
  92 {
  93   private:
  94     Addr vaddr;
  95   public:
  96     PageTableFault(Addr va) : vaddr(va) {}
  97     void invoke(ThreadContext * tc);
  98 };
  99
 100 static inline Fault genPageTableFault(Addr va)
 101 {
 102     return new PageTableFault(va);
 103 }
 104 #endif
 105
 106 static inline Fault genMachineCheckFault()
 107 {
 108     return new InternalProcessorError;
 109 }
 110
 111 static inline Fault genAlignmentFault()
 112 {
 113     return new MemAddressNotAligned;
 114 }
 115
 116 class PowerOnReset : public SparcFault<PowerOnReset> {};
 117
 118 class WatchDogReset : public SparcFault<WatchDogReset> {};
 119
 120 class ExternallyInitiatedReset : public SparcFault<ExternallyInitiatedReset> {};
 121
 122 class SoftwareInitiatedReset : public SparcFault<SoftwareInitiatedReset> {};
 123
 124 class REDStateException : public SparcFault<REDStateException> {};
 125
 126 class InstructionAccessException : public SparcFault<InstructionAccessException> {};
 127
 128 class InstructionAccessMMUMiss : public SparcFault<InstructionAccessMMUMiss> {};
 129
 130 class InstructionAccessError : public SparcFault<InstructionAccessError> {};
 131
 132 class IllegalInstruction : public SparcFault<IllegalInstruction> {};
 133
 134 class PrivilegedOpcode : public SparcFault<PrivilegedOpcode> {};
 135
 136 class UnimplementedLDD : public SparcFault<UnimplementedLDD> {};
 137
 138 class UnimplementedSTD : public SparcFault<UnimplementedSTD> {};
 139
 140 class FpDisabled : public SparcFault<FpDisabled> {};
 141
 142 class FpExceptionIEEE754 : public SparcFault<FpExceptionIEEE754> {};
 143
 144 class FpExceptionOther : public SparcFault<FpExceptionOther> {};
 145
 146 class TagOverflow : public SparcFault<TagOverflow> {};
 147
 148 class DivisionByZero : public SparcFault<DivisionByZero> {};
 149
 150 class DataAccessException : public SparcFault<DataAccessException> {};
 151
 152 class DataAccessMMUMiss : public SparcFault<DataAccessMMUMiss> {};
 153
 154 class DataAccessError : public SparcFault<DataAccessError> {};
 155
 156 class DataAccessProtection : public SparcFault<DataAccessProtection> {};
 157
 158 class LDDFMemAddressNotAligned : public SparcFault<LDDFMemAddressNotAligned> {};
 159
 160 class STDFMemAddressNotAligned : public SparcFault<STDFMemAddressNotAligned> {};
 161
 162 class PrivilegedAction : public SparcFault<PrivilegedAction> {};
 163
 164 class LDQFMemAddressNotAligned : public SparcFault<LDQFMemAddressNotAligned> {};
 165
 166 class STQFMemAddressNotAligned : public SparcFault<STQFMemAddressNotAligned> {};
 167
 168 class AsyncDataError : public SparcFault<AsyncDataError> {};
 169
 170 class CleanWindow : public SparcFault<CleanWindow> {};
 171
 172 template <class T>
 173 class EnumeratedFault : public SparcFault<T>
 174 {
 175   protected:
 176     uint32_t _n;
 177   public:
 178     EnumeratedFault(uint32_t n) : SparcFault<T>(), _n(n) {}
 179     TrapType trapType() {return SparcFault<T>::trapType() + _n;}
 180 };
 181
 182 class InterruptLevelN : public EnumeratedFault<InterruptLevelN>
 183 {
 184   public:
 185     InterruptLevelN(uint32_t n) :
 186         EnumeratedFault<InterruptLevelN>(n) {;}
 187     FaultPriority priority() {return 32 - _n;}
 188 };
 189
 190 class SpillNNormal : public EnumeratedFault<SpillNNormal>
 191 {
 192   public:
 193     SpillNNormal(uint32_t n) :
 194         EnumeratedFault<SpillNNormal>(n) {;}
 195     void invoke(ThreadContext * tc);
 196 };
 197
 198 class SpillNOther : public EnumeratedFault<SpillNOther>
 199 {
 200   public:
 201     SpillNOther(uint32_t n) :
 202         EnumeratedFault<SpillNOther>(n) {;}
 203 };
 204
 205 class FillNNormal : public EnumeratedFault<FillNNormal>
 206 {
 207   public:
 208     FillNNormal(uint32_t n) :
 209         EnumeratedFault<FillNNormal>(n) {;}
 210     void invoke(ThreadContext * tc);
 211 };
 212
 213 class FillNOther : public EnumeratedFault<FillNOther>
 214 {
 215   public:
 216     FillNOther(uint32_t n) :
 217         EnumeratedFault<FillNOther>(n) {;}
 218 };
 219
 220 class TrapInstruction : public EnumeratedFault<TrapInstruction>
 221 {
 222   private:
 223     uint64_t syscall_num;
 224   public:
 225     TrapInstruction(uint32_t n, uint64_t syscall) :
 226         EnumeratedFault<TrapInstruction>(n), syscall_num(syscall) {;}
 227 #if !FULL_SYSTEM
 228     void invoke(ThreadContext * tc);
 229 #endif
 230 };
 231
 232
 233 } // SparcISA namespace
 234
 235 #endif // __FAULTS_HH__