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/*
* Copyright (c) 2004-2006 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Kevin Lim
*/
#ifndef __CPU_O3_PARAMS_HH__
#define __CPU_O3_PARAMS_HH__
#include "cpu/o3/cpu.hh"
//Forward declarations
class FUPool;
/**
* This file defines the parameters that will be used for the O3CPU.
* This must be defined externally so that the Impl can have a params class
* defined that it can pass to all of the individual stages.
*/
class O3Params : public BaseO3CPU::Params
{
public:
unsigned activity;
//
// Caches
//
// MemInterface *icacheInterface;
// MemInterface *dcacheInterface;
unsigned cachePorts;
//
// Fetch
//
unsigned decodeToFetchDelay;
unsigned renameToFetchDelay;
unsigned iewToFetchDelay;
unsigned commitToFetchDelay;
unsigned fetchWidth;
//
// Decode
//
unsigned renameToDecodeDelay;
unsigned iewToDecodeDelay;
unsigned commitToDecodeDelay;
unsigned fetchToDecodeDelay;
unsigned decodeWidth;
//
// Rename
//
unsigned iewToRenameDelay;
unsigned commitToRenameDelay;
unsigned decodeToRenameDelay;
unsigned renameWidth;
//
// IEW
//
unsigned commitToIEWDelay;
unsigned renameToIEWDelay;
unsigned issueToExecuteDelay;
unsigned issueWidth;
FUPool *fuPool;
//
// Commit
//
unsigned iewToCommitDelay;
unsigned renameToROBDelay;
unsigned commitWidth;
unsigned squashWidth;
Tick trapLatency;
Tick fetchTrapLatency;
//
// Branch predictor (BP, BTB, RAS)
//
std::string predType;
unsigned localPredictorSize;
unsigned localCtrBits;
unsigned localHistoryTableSize;
unsigned localHistoryBits;
unsigned globalPredictorSize;
unsigned globalCtrBits;
unsigned globalHistoryBits;
unsigned choicePredictorSize;
unsigned choiceCtrBits;
unsigned BTBEntries;
unsigned BTBTagSize;
unsigned RASSize;
//
// Load store queue
//
unsigned LQEntries;
unsigned SQEntries;
//
// Memory dependence
//
unsigned SSITSize;
unsigned LFSTSize;
//
// Miscellaneous
//
unsigned numPhysIntRegs;
unsigned numPhysFloatRegs;
unsigned numIQEntries;
unsigned numROBEntries;
//SMT Parameters
unsigned smtNumFetchingThreads;
std::string smtFetchPolicy;
std::string smtIQPolicy;
unsigned smtIQThreshold;
std::string smtLSQPolicy;
unsigned smtLSQThreshold;
std::string smtCommitPolicy;
std::string smtROBPolicy;
unsigned smtROBThreshold;
// Probably can get this from somewhere.
unsigned instShiftAmt;
};
#endif // __CPU_O3_ALPHA_PARAMS_HH__
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