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