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