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     MemObject *mem;
  65
  66     //
  67     // Caches
  68     //
  69 //    MemInterface *icacheInterface;
  70 //    MemInterface *dcacheInterface;
  71
  72     unsigned cachePorts;
  73     unsigned width;
  74     unsigned frontEndLatency;
  75     unsigned frontEndWidth;
  76     unsigned backEndLatency;
  77     unsigned backEndWidth;
  78     unsigned backEndSquashLatency;
  79     unsigned maxInstBufferSize;
  80     unsigned numPhysicalRegs;
  81     unsigned maxOutstandingMemOps;
  82     //
  83     // Fetch
  84     //
  85     unsigned decodeToFetchDelay;
  86     unsigned renameToFetchDelay;
  87     unsigned iewToFetchDelay;
  88     unsigned commitToFetchDelay;
  89     unsigned fetchWidth;
  90
  91     //
  92     // Decode
  93     //
  94     unsigned renameToDecodeDelay;
  95     unsigned iewToDecodeDelay;
  96     unsigned commitToDecodeDelay;
  97     unsigned fetchToDecodeDelay;
  98     unsigned decodeWidth;
  99
 100     //
 101     // Rename
 102     //
 103     unsigned iewToRenameDelay;
 104     unsigned commitToRenameDelay;
 105     unsigned decodeToRenameDelay;
 106     unsigned renameWidth;
 107
 108     //
 109     // IEW
 110     //
 111     unsigned commitToIEWDelay;
 112     unsigned renameToIEWDelay;
 113     unsigned issueToExecuteDelay;
 114     unsigned issueWidth;
 115     unsigned executeWidth;
 116     unsigned executeIntWidth;
 117     unsigned executeFloatWidth;
 118     unsigned executeBranchWidth;
 119     unsigned executeMemoryWidth;
 120     FUPool *fuPool;
 121
 122     //
 123     // Commit
 124     //
 125     unsigned iewToCommitDelay;
 126     unsigned renameToROBDelay;
 127     unsigned commitWidth;
 128     unsigned squashWidth;
 129
 130     //
 131     // Branch predictor (BP & BTB)
 132     //
 133     std::string predType;
 134     unsigned localPredictorSize;
 135     unsigned localCtrBits;
 136     unsigned localHistoryTableSize;
 137     unsigned localHistoryBits;
 138     unsigned globalPredictorSize;
 139     unsigned globalCtrBits;
 140     unsigned globalHistoryBits;
 141     unsigned choicePredictorSize;
 142     unsigned choiceCtrBits;
 143
 144     unsigned BTBEntries;
 145     unsigned BTBTagSize;
 146
 147     unsigned RASSize;
 148
 149     //
 150     // Load store queue
 151     //
 152     unsigned LQEntries;
 153     unsigned SQEntries;
 154     bool lsqLimits;
 155
 156     //
 157     // Memory dependence
 158     //
 159     unsigned SSITSize;
 160     unsigned LFSTSize;
 161
 162     //
 163     // Miscellaneous
 164     //
 165     unsigned numPhysIntRegs;
 166     unsigned numPhysFloatRegs;
 167     unsigned numIQEntries;
 168     unsigned numROBEntries;
 169
 170     bool decoupledFrontEnd;
 171     int dispatchWidth;
 172     int wbWidth;
 173
 174     //SMT Parameters
 175     unsigned smtNumFetchingThreads;
 176
 177     std::string   smtFetchPolicy;
 178
 179     std::string   smtIQPolicy;
 180     unsigned smtIQThreshold;
 181
 182     std::string   smtLSQPolicy;
 183     unsigned smtLSQThreshold;
 184
 185     std::string   smtCommitPolicy;
 186
 187     std::string   smtROBPolicy;
 188     unsigned smtROBThreshold;
 189
 190     // Probably can get this from somewhere.
 191     unsigned instShiftAmt;
 192 };
 193
 194 #endif // __CPU_OZONE_SIMPLE_PARAMS_HH__