src/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 "arch/alpha/isa_traits.hh"
  33 #include "sim/faults.hh"
  34
  35 // The design of the "name" and "vect" functions is in sim/faults.hh
  36
  37 namespace AlphaISA
  38 {
  39
  40 typedef const Addr FaultVect;
  41
  42 class AlphaFault : public FaultBase
  43 {
  44   protected:
  45     virtual bool skipFaultingInstruction() {return false;}
  46     virtual bool setRestartAddress() {return true;}
  47   public:
  48 #if FULL_SYSTEM
  49     void invoke(ExecContext * xc);
  50 #endif
  51     virtual FaultVect vect() = 0;
  52     virtual FaultStat & countStat() = 0;
  53 };
  54
  55 class MachineCheckFault : public AlphaFault
  56 {
  57   private:
  58     static FaultName _name;
  59     static FaultVect _vect;
  60     static FaultStat _count;
  61   public:
  62     FaultName name() {return _name;}
  63     FaultVect vect() {return _vect;}
  64     FaultStat & countStat() {return _count;}
  65     bool isMachineCheckFault() {return true;}
  66 };
  67
  68 class AlignmentFault : public AlphaFault
  69 {
  70   private:
  71     static FaultName _name;
  72     static FaultVect _vect;
  73     static FaultStat _count;
  74   public:
  75     FaultName name() {return _name;}
  76     FaultVect vect() {return _vect;}
  77     FaultStat & countStat() {return _count;}
  78     bool isAlignmentFault() {return true;}
  79 };
  80
  81 static inline Fault genMachineCheckFault()
  82 {
  83     return new MachineCheckFault;
  84 }
  85
  86 static inline Fault genAlignmentFault()
  87 {
  88     return new AlignmentFault;
  89 }
  90
  91 class ResetFault : public AlphaFault
  92 {
  93   private:
  94     static FaultName _name;
  95     static FaultVect _vect;
  96     static FaultStat _count;
  97   public:
  98     FaultName name() {return _name;}
  99     FaultVect vect() {return _vect;}
 100     FaultStat & countStat() {return _count;}
 101 };
 102
 103 class ArithmeticFault : public AlphaFault
 104 {
 105   protected:
 106     bool skipFaultingInstruction() {return true;}
 107   private:
 108     static FaultName _name;
 109     static FaultVect _vect;
 110     static FaultStat _count;
 111   public:
 112     FaultName name() {return _name;}
 113     FaultVect vect() {return _vect;}
 114     FaultStat & countStat() {return _count;}
 115 #if FULL_SYSTEM
 116     void invoke(ExecContext * xc);
 117 #endif
 118 };
 119
 120 class InterruptFault : public AlphaFault
 121 {
 122   protected:
 123     bool setRestartAddress() {return false;}
 124   private:
 125     static FaultName _name;
 126     static FaultVect _vect;
 127     static FaultStat _count;
 128   public:
 129     FaultName name() {return _name;}
 130     FaultVect vect() {return _vect;}
 131     FaultStat & countStat() {return _count;}
 132 };
 133
 134 class DtbFault : public AlphaFault
 135 {
 136 #if FULL_SYSTEM
 137   private:
 138     AlphaISA::VAddr vaddr;
 139     uint32_t reqFlags;
 140     uint64_t flags;
 141   public:
 142     DtbFault(AlphaISA::VAddr _vaddr, uint32_t _reqFlags, uint64_t _flags)
 143         : vaddr(_vaddr), reqFlags(_reqFlags), flags(_flags)
 144     { }
 145 #endif
 146     FaultName name() = 0;
 147     FaultVect vect() = 0;
 148     FaultStat & countStat() = 0;
 149 #if FULL_SYSTEM
 150     void invoke(ExecContext * xc);
 151 #endif
 152 };
 153
 154 class NDtbMissFault : public DtbFault
 155 {
 156   private:
 157     static FaultName _name;
 158     static FaultVect _vect;
 159     static FaultStat _count;
 160   public:
 161 #if FULL_SYSTEM
 162     NDtbMissFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
 163         : DtbFault(vaddr, reqFlags, flags)
 164     { }
 165 #endif
 166     FaultName name() {return _name;}
 167     FaultVect vect() {return _vect;}
 168     FaultStat & countStat() {return _count;}
 169 };
 170
 171 class PDtbMissFault : public DtbFault
 172 {
 173   private:
 174     static FaultName _name;
 175     static FaultVect _vect;
 176     static FaultStat _count;
 177   public:
 178 #if FULL_SYSTEM
 179     PDtbMissFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
 180         : DtbFault(vaddr, reqFlags, flags)
 181     { }
 182 #endif
 183     FaultName name() {return _name;}
 184     FaultVect vect() {return _vect;}
 185     FaultStat & countStat() {return _count;}
 186 };
 187
 188 class DtbPageFault : public DtbFault
 189 {
 190   private:
 191     static FaultName _name;
 192     static FaultVect _vect;
 193     static FaultStat _count;
 194   public:
 195 #if FULL_SYSTEM
 196     DtbPageFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
 197         : DtbFault(vaddr, reqFlags, flags)
 198     { }
 199 #endif
 200     FaultName name() {return _name;}
 201     FaultVect vect() {return _vect;}
 202     FaultStat & countStat() {return _count;}
 203 };
 204
 205 class DtbAcvFault : public DtbFault
 206 {
 207   private:
 208     static FaultName _name;
 209     static FaultVect _vect;
 210     static FaultStat _count;
 211   public:
 212 #if FULL_SYSTEM
 213     DtbAcvFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
 214         : DtbFault(vaddr, reqFlags, flags)
 215     { }
 216 #endif
 217     FaultName name() {return _name;}
 218     FaultVect vect() {return _vect;}
 219     FaultStat & countStat() {return _count;}
 220 };
 221
 222 class DtbAlignmentFault : public DtbFault
 223 {
 224   private:
 225     static FaultName _name;
 226     static FaultVect _vect;
 227     static FaultStat _count;
 228   public:
 229 #if FULL_SYSTEM
 230     DtbAlignmentFault(AlphaISA::VAddr vaddr, uint32_t reqFlags, uint64_t flags)
 231         : DtbFault(vaddr, reqFlags, flags)
 232     { }
 233 #endif
 234     FaultName name() {return _name;}
 235     FaultVect vect() {return _vect;}
 236     FaultStat & countStat() {return _count;}
 237 };
 238
 239 class ItbFault : public AlphaFault
 240 {
 241   private:
 242     Addr pc;
 243   public:
 244     ItbFault(Addr _pc)
 245         : pc(_pc)
 246     { }
 247     FaultName name() = 0;
 248     FaultVect vect() = 0;
 249     FaultStat & countStat() = 0;
 250 #if FULL_SYSTEM
 251     void invoke(ExecContext * xc);
 252 #endif
 253 };
 254
 255 class ItbMissFault : public ItbFault
 256 {
 257   private:
 258     static FaultName _name;
 259     static FaultVect _vect;
 260     static FaultStat _count;
 261   public:
 262     ItbMissFault(Addr pc)
 263         : ItbFault(pc)
 264     { }
 265     FaultName name() {return _name;}
 266     FaultVect vect() {return _vect;}
 267     FaultStat & countStat() {return _count;}
 268 };
 269
 270 class ItbPageFault : public ItbFault
 271 {
 272   private:
 273     static FaultName _name;
 274     static FaultVect _vect;
 275     static FaultStat _count;
 276   public:
 277     ItbPageFault(Addr pc)
 278         : ItbFault(pc)
 279     { }
 280     FaultName name() {return _name;}
 281     FaultVect vect() {return _vect;}
 282     FaultStat & countStat() {return _count;}
 283 };
 284
 285 class ItbAcvFault : public ItbFault
 286 {
 287   private:
 288     static FaultName _name;
 289     static FaultVect _vect;
 290     static FaultStat _count;
 291   public:
 292     ItbAcvFault(Addr pc)
 293         : ItbFault(pc)
 294     { }
 295     FaultName name() {return _name;}
 296     FaultVect vect() {return _vect;}
 297     FaultStat & countStat() {return _count;}
 298 };
 299
 300 class UnimplementedOpcodeFault : public AlphaFault
 301 {
 302   private:
 303     static FaultName _name;
 304     static FaultVect _vect;
 305     static FaultStat _count;
 306   public:
 307     FaultName name() {return _name;}
 308     FaultVect vect() {return _vect;}
 309     FaultStat & countStat() {return _count;}
 310 };
 311
 312 class FloatEnableFault : public AlphaFault
 313 {
 314   private:
 315     static FaultName _name;
 316     static FaultVect _vect;
 317     static FaultStat _count;
 318   public:
 319     FaultName name() {return _name;}
 320     FaultVect vect() {return _vect;}
 321     FaultStat & countStat() {return _count;}
 322 };
 323
 324 class PalFault : public AlphaFault
 325 {
 326   protected:
 327     bool skipFaultingInstruction() {return true;}
 328   private:
 329     static FaultName _name;
 330     static FaultVect _vect;
 331     static FaultStat _count;
 332   public:
 333     FaultName name() {return _name;}
 334     FaultVect vect() {return _vect;}
 335     FaultStat & countStat() {return _count;}
 336 };
 337
 338 class IntegerOverflowFault : public AlphaFault
 339 {
 340   private:
 341     static FaultName _name;
 342     static FaultVect _vect;
 343     static FaultStat _count;
 344   public:
 345     FaultName name() {return _name;}
 346     FaultVect vect() {return _vect;}
 347     FaultStat & countStat() {return _count;}
 348 };
 349
 350 } // AlphaISA namespace
 351
 352 #endif // __FAULTS_HH__