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 namespace TheISA
  38 {
  39     class DTB;
  40     class ITB;
  41 }
  42 class FUPool;
  43 class MemObject;
  44 class PageTable;
  45 class Process;
  46 class System;
  47
  48 /**
  49  * This file defines the parameters that will be used for the OzoneCPU.
  50  * This must be defined externally so that the Impl can have a params class
  51  * defined that it can pass to all of the individual stages.
  52  */
  53
  54 class SimpleParams : public BaseCPU::Params
  55 {
  56   public:
  57
  58 #if FULL_SYSTEM
  59     TheISA::ITB *itb; TheISA::DTB *dtb;
  60 #else
  61     std::vector<Process *> workload;
  62 #endif // FULL_SYSTEM
  63
  64     //Page Table
  65     PageTable *pTable;
  66
  67     //
  68     // Caches
  69     //
  70 //    MemInterface *icacheInterface;
  71 //    MemInterface *dcacheInterface;
  72
  73     unsigned cachePorts;
  74     unsigned width;
  75     unsigned frontEndLatency;
  76     unsigned frontEndWidth;
  77     unsigned backEndLatency;
  78     unsigned backEndWidth;
  79     unsigned backEndSquashLatency;
  80     unsigned maxInstBufferSize;
  81     unsigned numPhysicalRegs;
  82     unsigned maxOutstandingMemOps;
  83     //
  84     // Fetch
  85     //
  86     unsigned decodeToFetchDelay;
  87     unsigned renameToFetchDelay;
  88     unsigned iewToFetchDelay;
  89     unsigned commitToFetchDelay;
  90     unsigned fetchWidth;
  91
  92     //
  93     // Decode
  94     //
  95     unsigned renameToDecodeDelay;
  96     unsigned iewToDecodeDelay;
  97     unsigned commitToDecodeDelay;
  98     unsigned fetchToDecodeDelay;
  99     unsigned decodeWidth;
 100
 101     //
 102     // Rename
 103     //
 104     unsigned iewToRenameDelay;
 105     unsigned commitToRenameDelay;
 106     unsigned decodeToRenameDelay;
 107     unsigned renameWidth;
 108
 109     //
 110     // IEW
 111     //
 112     unsigned commitToIEWDelay;
 113     unsigned renameToIEWDelay;
 114     unsigned issueToExecuteDelay;
 115     unsigned issueWidth;
 116     unsigned executeWidth;
 117     unsigned executeIntWidth;
 118     unsigned executeFloatWidth;
 119     unsigned executeBranchWidth;
 120     unsigned executeMemoryWidth;
 121     FUPool *fuPool;
 122
 123     //
 124     // Commit
 125     //
 126     unsigned iewToCommitDelay;
 127     unsigned renameToROBDelay;
 128     unsigned commitWidth;
 129     unsigned squashWidth;
 130
 131     //
 132     // Branch predictor (BP & BTB)
 133     //
 134     std::string predType;
 135     unsigned localPredictorSize;
 136     unsigned localCtrBits;
 137     unsigned localHistoryTableSize;
 138     unsigned localHistoryBits;
 139     unsigned globalPredictorSize;
 140     unsigned globalCtrBits;
 141     unsigned globalHistoryBits;
 142     unsigned choicePredictorSize;
 143     unsigned choiceCtrBits;
 144
 145     unsigned BTBEntries;
 146     unsigned BTBTagSize;
 147
 148     unsigned RASSize;
 149
 150     //
 151     // Load store queue
 152     //
 153     unsigned LQEntries;
 154     unsigned SQEntries;
 155     bool lsqLimits;
 156
 157     //
 158     // Memory dependence
 159     //
 160     unsigned SSITSize;
 161     unsigned LFSTSize;
 162
 163     //
 164     // Miscellaneous
 165     //
 166     unsigned numPhysIntRegs;
 167     unsigned numPhysFloatRegs;
 168     unsigned numIQEntries;
 169     unsigned numROBEntries;
 170
 171     bool decoupledFrontEnd;
 172     int dispatchWidth;
 173     int wbWidth;
 174
 175     //SMT Parameters
 176     unsigned smtNumFetchingThreads;
 177
 178     std::string   smtFetchPolicy;
 179
 180     std::string   smtIQPolicy;
 181     unsigned smtIQThreshold;
 182
 183     std::string   smtLSQPolicy;
 184     unsigned smtLSQThreshold;
 185
 186     std::string   smtCommitPolicy;
 187
 188     std::string   smtROBPolicy;
 189     unsigned smtROBThreshold;
 190
 191     // Probably can get this from somewhere.
 192     unsigned instShiftAmt;
 193 };
 194
 195 #endif // __CPU_OZONE_SIMPLE_PARAMS_HH__