src/cpu/ozone/simple_params.hh

   1 /*
   2  * Copyright (c) 2006 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 __CPU_OZONE_SIMPLE_PARAMS_HH__
  30 #define __CPU_OZONE_SIMPLE_PARAMS_HH__
  31
  32 #include "cpu/ozone/cpu.hh"
  33
  34 //Forward declarations
  35 class AlphaDTB;
  36 class AlphaITB;
  37 class FUPool;
  38 class FunctionalMemory;
  39 class MemInterface;
  40 class PageTable;
  41 class Process;
  42 class System;
  43
  44 /**
  45  * This file defines the parameters that will be used for the OzoneCPU.
  46  * This must be defined externally so that the Impl can have a params class
  47  * defined that it can pass to all of the individual stages.
  48  */
  49
  50 class SimpleParams : public BaseCPU::Params
  51 {
  52   public:
  53
  54 #if FULL_SYSTEM
  55     AlphaITB *itb; AlphaDTB *dtb;
  56 #else
  57     std::vector<Process *> workload;
  58 #endif // FULL_SYSTEM
  59
  60     //Page Table
  61     PageTable *pTable;
  62
  63     FunctionalMemory *mem;
  64
  65     //
  66     // Caches
  67     //
  68     MemInterface *icacheInterface;
  69     MemInterface *dcacheInterface;
  70
  71     unsigned cachePorts;
  72     unsigned width;
  73     unsigned frontEndWidth;
  74     unsigned backEndWidth;
  75     unsigned backEndSquashLatency;
  76     unsigned backEndLatency;
  77     unsigned maxInstBufferSize;
  78     unsigned numPhysicalRegs;
  79     unsigned maxOutstandingMemOps;
  80     //
  81     // Fetch
  82     //
  83     unsigned decodeToFetchDelay;
  84     unsigned renameToFetchDelay;
  85     unsigned iewToFetchDelay;
  86     unsigned commitToFetchDelay;
  87     unsigned fetchWidth;
  88
  89     //
  90     // Decode
  91     //
  92     unsigned renameToDecodeDelay;
  93     unsigned iewToDecodeDelay;
  94     unsigned commitToDecodeDelay;
  95     unsigned fetchToDecodeDelay;
  96     unsigned decodeWidth;
  97
  98     //
  99     // Rename
 100     //
 101     unsigned iewToRenameDelay;
 102     unsigned commitToRenameDelay;
 103     unsigned decodeToRenameDelay;
 104     unsigned renameWidth;
 105
 106     //
 107     // IEW
 108     //
 109     unsigned commitToIEWDelay;
 110     unsigned renameToIEWDelay;
 111     unsigned issueToExecuteDelay;
 112     unsigned issueWidth;
 113     unsigned executeWidth;
 114     unsigned executeIntWidth;
 115     unsigned executeFloatWidth;
 116     unsigned executeBranchWidth;
 117     unsigned executeMemoryWidth;
 118     FUPool *fuPool;
 119
 120     //
 121     // Commit
 122     //
 123     unsigned iewToCommitDelay;
 124     unsigned renameToROBDelay;
 125     unsigned commitWidth;
 126     unsigned squashWidth;
 127
 128     //
 129     // Branch predictor (BP & BTB)
 130     //
 131     std::string predType;
 132     unsigned localPredictorSize;
 133     unsigned localCtrBits;
 134     unsigned localHistoryTableSize;
 135     unsigned localHistoryBits;
 136     unsigned globalPredictorSize;
 137     unsigned globalCtrBits;
 138     unsigned globalHistoryBits;
 139     unsigned choicePredictorSize;
 140     unsigned choiceCtrBits;
 141
 142     unsigned BTBEntries;
 143     unsigned BTBTagSize;
 144
 145     unsigned RASSize;
 146
 147     //
 148     // Load store queue
 149     //
 150     unsigned LQEntries;
 151     unsigned SQEntries;
 152
 153     //
 154     // Memory dependence
 155     //
 156     unsigned SSITSize;
 157     unsigned LFSTSize;
 158
 159     //
 160     // Miscellaneous
 161     //
 162     unsigned numPhysIntRegs;
 163     unsigned numPhysFloatRegs;
 164     unsigned numIQEntries;
 165     unsigned numROBEntries;
 166
 167     bool decoupledFrontEnd;
 168     int dispatchWidth;
 169     int wbWidth;
 170
 171     //SMT Parameters
 172     unsigned smtNumFetchingThreads;
 173
 174     std::string   smtFetchPolicy;
 175
 176     std::string   smtIQPolicy;
 177     unsigned smtIQThreshold;
 178
 179     std::string   smtLSQPolicy;
 180     unsigned smtLSQThreshold;
 181
 182     std::string   smtCommitPolicy;
 183
 184     std::string   smtROBPolicy;
 185     unsigned smtROBThreshold;
 186
 187     // Probably can get this from somewhere.
 188     unsigned instShiftAmt;
 189 };
 190
 191 #endif // __CPU_OZONE_SIMPLE_PARAMS_HH__