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  * Authors: Kevin Lim
  29  */
  30
  31 #ifndef __CPU_OZONE_SIMPLE_PARAMS_HH__
  32 #define __CPU_OZONE_SIMPLE_PARAMS_HH__
  33
  34 #include "cpu/ozone/cpu.hh"
  35
  36 //Forward declarations
  37 class AlphaDTB;
  38 class AlphaITB;
  39 class FUPool;
  40 class MemObject;
  41 class PageTable;
  42 class Process;
  43 class System;
  44
  45 /**
  46  * This file defines the parameters that will be used for the OzoneCPU.
  47  * This must be defined externally so that the Impl can have a params class
  48  * defined that it can pass to all of the individual stages.
  49  */
  50
  51 class SimpleParams : public BaseCPU::Params
  52 {
  53   public:
  54
  55 #if FULL_SYSTEM
  56     AlphaITB *itb; AlphaDTB *dtb;
  57 #else
  58     std::vector<Process *> workload;
  59 #endif // FULL_SYSTEM
  60
  61     //Page Table
  62     PageTable *pTable;
  63
  64     //
  65     // Caches
  66     //
  67 //    MemInterface *icacheInterface;
  68 //    MemInterface *dcacheInterface;
  69
  70     unsigned cachePorts;
  71     unsigned width;
  72     unsigned frontEndLatency;
  73     unsigned frontEndWidth;
  74     unsigned backEndLatency;
  75     unsigned backEndWidth;
  76     unsigned backEndSquashLatency;
  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     bool lsqLimits;
 153
 154     //
 155     // Memory dependence
 156     //
 157     unsigned SSITSize;
 158     unsigned LFSTSize;
 159
 160     //
 161     // Miscellaneous
 162     //
 163     unsigned numPhysIntRegs;
 164     unsigned numPhysFloatRegs;
 165     unsigned numIQEntries;
 166     unsigned numROBEntries;
 167
 168     bool decoupledFrontEnd;
 169     int dispatchWidth;
 170     int wbWidth;
 171
 172     //SMT Parameters
 173     unsigned smtNumFetchingThreads;
 174
 175     std::string   smtFetchPolicy;
 176
 177     std::string   smtIQPolicy;
 178     unsigned smtIQThreshold;
 179
 180     std::string   smtLSQPolicy;
 181     unsigned smtLSQThreshold;
 182
 183     std::string   smtCommitPolicy;
 184
 185     std::string   smtROBPolicy;
 186     unsigned smtROBThreshold;
 187
 188     // Probably can get this from somewhere.
 189     unsigned instShiftAmt;
 190 };
 191
 192 #endif // __CPU_OZONE_SIMPLE_PARAMS_HH__