src/arch/mips/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: Korey Sewell
  29  */
  30
  31 #ifndef __MIPS_FAULTS_HH__
  32 #define __MIPS_FAULTS_HH__
  33
  34 #include "sim/faults.hh"
  35
  36 // The design of the "name" and "vect" functions is in sim/faults.hh
  37
  38 namespace MipsISA
  39 {
  40
  41 typedef const Addr FaultVect;
  42
  43 class MipsFault : public FaultBase
  44 {
  45   protected:
  46     virtual bool skipFaultingInstruction() {return false;}
  47     virtual bool setRestartAddress() {return true;}
  48   public:
  49 #if FULL_SYSTEM
  50     void invoke(ThreadContext * tc);
  51 #endif
  52     virtual FaultVect vect() = 0;
  53     virtual FaultStat & countStat() = 0;
  54 };
  55
  56 class MachineCheckFault : public MipsFault
  57 {
  58   private:
  59     static FaultName _name;
  60     static FaultVect _vect;
  61     static FaultStat _count;
  62   public:
  63     FaultName name() {return _name;}
  64     FaultVect vect() {return _vect;}
  65     FaultStat & countStat() {return _count;}
  66     bool isMachineCheckFault() {return true;}
  67 };
  68
  69 class AlignmentFault : public MipsFault
  70 {
  71   private:
  72     static FaultName _name;
  73     static FaultVect _vect;
  74     static FaultStat _count;
  75   public:
  76     FaultName name() {return _name;}
  77     FaultVect vect() {return _vect;}
  78     FaultStat & countStat() {return _count;}
  79     bool isAlignmentFault() {return true;}
  80 };
  81
  82 static inline Fault genMachineCheckFault()
  83 {
  84     return new MachineCheckFault;
  85 }
  86
  87 static inline Fault genAlignmentFault()
  88 {
  89     return new AlignmentFault;
  90 }
  91
  92 class ResetFault : public MipsFault
  93 {
  94   private:
  95     static FaultName _name;
  96     static FaultVect _vect;
  97     static FaultStat _count;
  98   public:
  99     FaultName name() {return _name;}
 100     FaultVect vect() {return _vect;}
 101     FaultStat & countStat() {return _count;}
 102 };
 103
 104 class ArithmeticFault : public MipsFault
 105 {
 106   protected:
 107     bool skipFaultingInstruction() {return true;}
 108   private:
 109     static FaultName _name;
 110     static FaultVect _vect;
 111     static FaultStat _count;
 112   public:
 113     FaultName name() {return _name;}
 114     FaultVect vect() {return _vect;}
 115     FaultStat & countStat() {return _count;}
 116 #if FULL_SYSTEM
 117     void invoke(ThreadContext * tc);
 118 #endif
 119 };
 120
 121 class InterruptFault : public MipsFault
 122 {
 123   protected:
 124     bool setRestartAddress() {return false;}
 125   private:
 126     static FaultName _name;
 127     static FaultVect _vect;
 128     static FaultStat _count;
 129   public:
 130     FaultName name() {return _name;}
 131     FaultVect vect() {return _vect;}
 132     FaultStat & countStat() {return _count;}
 133 };
 134
 135 class NDtbMissFault : public MipsFault
 136 {
 137   private:
 138     static FaultName _name;
 139     static FaultVect _vect;
 140     static FaultStat _count;
 141   public:
 142     FaultName name() {return _name;}
 143     FaultVect vect() {return _vect;}
 144     FaultStat & countStat() {return _count;}
 145 };
 146
 147 class PDtbMissFault : public MipsFault
 148 {
 149   private:
 150     static FaultName _name;
 151     static FaultVect _vect;
 152     static FaultStat _count;
 153   public:
 154     FaultName name() {return _name;}
 155     FaultVect vect() {return _vect;}
 156     FaultStat & countStat() {return _count;}
 157 };
 158
 159 class DtbPageFault : public MipsFault
 160 {
 161   private:
 162     static FaultName _name;
 163     static FaultVect _vect;
 164     static FaultStat _count;
 165   public:
 166     FaultName name() {return _name;}
 167     FaultVect vect() {return _vect;}
 168     FaultStat & countStat() {return _count;}
 169 };
 170
 171 class DtbAcvFault : public MipsFault
 172 {
 173   private:
 174     static FaultName _name;
 175     static FaultVect _vect;
 176     static FaultStat _count;
 177   public:
 178     FaultName name() {return _name;}
 179     FaultVect vect() {return _vect;}
 180     FaultStat & countStat() {return _count;}
 181 };
 182
 183 class ItbMissFault : public MipsFault
 184 {
 185   private:
 186     static FaultName _name;
 187     static FaultVect _vect;
 188     static FaultStat _count;
 189   public:
 190     FaultName name() {return _name;}
 191     FaultVect vect() {return _vect;}
 192     FaultStat & countStat() {return _count;}
 193 };
 194
 195 class ItbPageFault : public MipsFault
 196 {
 197   private:
 198     static FaultName _name;
 199     static FaultVect _vect;
 200     static FaultStat _count;
 201   public:
 202     FaultName name() {return _name;}
 203     FaultVect vect() {return _vect;}
 204     FaultStat & countStat() {return _count;}
 205 };
 206
 207 class ItbAcvFault : public MipsFault
 208 {
 209   private:
 210     static FaultName _name;
 211     static FaultVect _vect;
 212     static FaultStat _count;
 213   public:
 214     FaultName name() {return _name;}
 215     FaultVect vect() {return _vect;}
 216     FaultStat & countStat() {return _count;}
 217 };
 218
 219 class UnimplementedOpcodeFault : public MipsFault
 220 {
 221   private:
 222     static FaultName _name;
 223     static FaultVect _vect;
 224     static FaultStat _count;
 225   public:
 226     FaultName name() {return _name;}
 227     FaultVect vect() {return _vect;}
 228     FaultStat & countStat() {return _count;}
 229 };
 230
 231 class FloatEnableFault : public MipsFault
 232 {
 233   private:
 234     static FaultName _name;
 235     static FaultVect _vect;
 236     static FaultStat _count;
 237   public:
 238     FaultName name() {return _name;}
 239     FaultVect vect() {return _vect;}
 240     FaultStat & countStat() {return _count;}
 241 };
 242
 243 class PalFault : public MipsFault
 244 {
 245   protected:
 246     bool skipFaultingInstruction() {return true;}
 247   private:
 248     static FaultName _name;
 249     static FaultVect _vect;
 250     static FaultStat _count;
 251   public:
 252     FaultName name() {return _name;}
 253     FaultVect vect() {return _vect;}
 254     FaultStat & countStat() {return _count;}
 255 };
 256
 257 class IntegerOverflowFault : public MipsFault
 258 {
 259   private:
 260     static FaultName _name;
 261     static FaultVect _vect;
 262     static FaultStat _count;
 263   public:
 264     FaultName name() {return _name;}
 265     FaultVect vect() {return _vect;}
 266     FaultStat & countStat() {return _count;}
 267 };
 268
 269 } // MipsISA namespace
 270
 271 #endif // __FAULTS_HH__