6efb930e19
In the future, it would be nice to put the O3CPU into its own namespace so that we don't end up hardcoding pointers to the global namespace.
120 lines
4.5 KiB
C++
120 lines
4.5 KiB
C++
/*
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* Copyright (c) 2004-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Kevin Lim
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*/
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#ifndef __CPU_O3_CPU_POLICY_HH__
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#define __CPU_O3_CPU_POLICY_HH__
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#include "cpu/o3/bpred_unit.hh"
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#include "cpu/o3/free_list.hh"
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#include "cpu/o3/inst_queue.hh"
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#include "cpu/o3/lsq.hh"
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#include "cpu/o3/lsq_unit.hh"
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#include "cpu/o3/mem_dep_unit.hh"
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#include "cpu/o3/regfile.hh"
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#include "cpu/o3/rename_map.hh"
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#include "cpu/o3/rob.hh"
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#include "cpu/o3/store_set.hh"
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#include "cpu/o3/commit.hh"
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#include "cpu/o3/decode.hh"
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#include "cpu/o3/fetch.hh"
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#include "cpu/o3/iew.hh"
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#include "cpu/o3/rename.hh"
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#include "cpu/o3/comm.hh"
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/**
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* Struct that defines the key classes to be used by the CPU. All
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* classes use the typedefs defined here to determine what are the
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* classes of the other stages and communication buffers. In order to
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* change a structure such as the IQ, simply change the typedef here
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* to use the desired class instead, and recompile. In order to
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* create a different CPU to be used simultaneously with this one, see
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* the alpha_impl.hh file for instructions.
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*/
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template<class Impl>
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struct SimpleCPUPolicy
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{
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/** Typedef for the branch prediction unit (which includes the BP,
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* RAS, and BTB).
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*/
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typedef ::BPredUnit<Impl> BPredUnit;
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/** Typedef for the register file. Most classes assume a unified
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* physical register file.
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*/
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typedef PhysRegFile<Impl> RegFile;
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/** Typedef for the freelist of registers. */
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typedef SimpleFreeList FreeList;
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/** Typedef for the rename map. */
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typedef SimpleRenameMap RenameMap;
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/** Typedef for the ROB. */
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typedef ::ROB<Impl> ROB;
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/** Typedef for the instruction queue/scheduler. */
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typedef InstructionQueue<Impl> IQ;
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/** Typedef for the memory dependence unit. */
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typedef ::MemDepUnit<StoreSet, Impl> MemDepUnit;
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/** Typedef for the LSQ. */
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typedef ::LSQ<Impl> LSQ;
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/** Typedef for the thread-specific LSQ units. */
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typedef ::LSQUnit<Impl> LSQUnit;
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/** Typedef for fetch. */
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typedef DefaultFetch<Impl> Fetch;
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/** Typedef for decode. */
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typedef DefaultDecode<Impl> Decode;
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/** Typedef for rename. */
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typedef DefaultRename<Impl> Rename;
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/** Typedef for Issue/Execute/Writeback. */
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typedef DefaultIEW<Impl> IEW;
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/** Typedef for commit. */
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typedef DefaultCommit<Impl> Commit;
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/** The struct for communication between fetch and decode. */
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typedef DefaultFetchDefaultDecode<Impl> FetchStruct;
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/** The struct for communication between decode and rename. */
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typedef DefaultDecodeDefaultRename<Impl> DecodeStruct;
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/** The struct for communication between rename and IEW. */
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typedef DefaultRenameDefaultIEW<Impl> RenameStruct;
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/** The struct for communication between IEW and commit. */
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typedef DefaultIEWDefaultCommit<Impl> IEWStruct;
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/** The struct for communication within the IEW stage. */
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typedef ::IssueStruct<Impl> IssueStruct;
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/** The struct for all backwards communication. */
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typedef TimeBufStruct<Impl> TimeStruct;
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};
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#endif //__CPU_O3_CPU_POLICY_HH__
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