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/*
* Copyright (c) 2004-2005 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_CPU_POLICY_HH__
#define __CPU_O3_CPU_POLICY_HH__
#include "cpu/o3/bpred_unit.hh"
#include "cpu/o3/free_list.hh"
#include "cpu/o3/inst_queue.hh"
#include "cpu/o3/lsq.hh"
#include "cpu/o3/lsq_unit.hh"
#include "cpu/o3/mem_dep_unit.hh"
#include "cpu/o3/regfile.hh"
#include "cpu/o3/rename_map.hh"
#include "cpu/o3/rob.hh"
#include "cpu/o3/store_set.hh"
#include "cpu/o3/commit.hh"
#include "cpu/o3/decode.hh"
#include "cpu/o3/fetch.hh"
#include "cpu/o3/iew.hh"
#include "cpu/o3/rename.hh"
#include "cpu/o3/comm.hh"
/**
* Struct that defines the key classes to be used by the CPU. All
* classes use the typedefs defined here to determine what are the
* classes of the other stages and communication buffers. In order to
* change a structure such as the IQ, simply change the typedef here
* to use the desired class instead, and recompile. In order to
* create a different CPU to be used simultaneously with this one, see
* the alpha_impl.hh file for instructions.
*/
template<class Impl>
struct SimpleCPUPolicy
{
/** Typedef for the branch prediction unit (which includes the BP,
* RAS, and BTB).
*/
typedef ::BPredUnit<Impl> BPredUnit;
/** Typedef for the register file. Most classes assume a unified
* physical register file.
*/
typedef PhysRegFile<Impl> RegFile;
/** Typedef for the freelist of registers. */
typedef SimpleFreeList FreeList;
/** Typedef for the rename map. */
typedef SimpleRenameMap RenameMap;
/** Typedef for the ROB. */
typedef ::ROB<Impl> ROB;
/** Typedef for the instruction queue/scheduler. */
typedef InstructionQueue<Impl> IQ;
/** Typedef for the memory dependence unit. */
typedef ::MemDepUnit<StoreSet, Impl> MemDepUnit;
/** Typedef for the LSQ. */
typedef ::LSQ<Impl> LSQ;
/** Typedef for the thread-specific LSQ units. */
typedef ::LSQUnit<Impl> LSQUnit;
/** Typedef for fetch. */
typedef DefaultFetch<Impl> Fetch;
/** Typedef for decode. */
typedef DefaultDecode<Impl> Decode;
/** Typedef for rename. */
typedef DefaultRename<Impl> Rename;
/** Typedef for Issue/Execute/Writeback. */
typedef DefaultIEW<Impl> IEW;
/** Typedef for commit. */
typedef DefaultCommit<Impl> Commit;
/** The struct for communication between fetch and decode. */
typedef DefaultFetchDefaultDecode<Impl> FetchStruct;
/** The struct for communication between decode and rename. */
typedef DefaultDecodeDefaultRename<Impl> DecodeStruct;
/** The struct for communication between rename and IEW. */
typedef DefaultRenameDefaultIEW<Impl> RenameStruct;
/** The struct for communication between IEW and commit. */
typedef DefaultIEWDefaultCommit<Impl> IEWStruct;
/** The struct for communication within the IEW stage. */
typedef ::IssueStruct<Impl> IssueStruct;
/** The struct for all backwards communication. */
typedef TimeBufStruct<Impl> TimeStruct;
};
#endif //__CPU_O3_CPU_POLICY_HH__
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