cpu_policy.hh revision 9480:d059f8a95a42
1/* 2 * Copyright (c) 2004-2005 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_O3_CPU_POLICY_HH__ 32#define __CPU_O3_CPU_POLICY_HH__ 33 34#include "cpu/o3/comm.hh" 35#include "cpu/o3/commit.hh" 36#include "cpu/o3/decode.hh" 37#include "cpu/o3/fetch.hh" 38#include "cpu/o3/free_list.hh" 39#include "cpu/o3/iew.hh" 40#include "cpu/o3/inst_queue.hh" 41#include "cpu/o3/lsq.hh" 42#include "cpu/o3/lsq_unit.hh" 43#include "cpu/o3/mem_dep_unit.hh" 44#include "cpu/o3/regfile.hh" 45#include "cpu/o3/rename.hh" 46#include "cpu/o3/rename_map.hh" 47#include "cpu/o3/rob.hh" 48#include "cpu/o3/store_set.hh" 49 50/** 51 * Struct that defines the key classes to be used by the CPU. All 52 * classes use the typedefs defined here to determine what are the 53 * classes of the other stages and communication buffers. In order to 54 * change a structure such as the IQ, simply change the typedef here 55 * to use the desired class instead, and recompile. In order to 56 * create a different CPU to be used simultaneously with this one, see 57 * the alpha_impl.hh file for instructions. 58 */ 59template<class Impl> 60struct SimpleCPUPolicy 61{ 62 /** Typedef for the register file. Most classes assume a unified 63 * physical register file. 64 */ 65 typedef PhysRegFile<Impl> RegFile; 66 /** Typedef for the freelist of registers. */ 67 typedef SimpleFreeList FreeList; 68 /** Typedef for the rename map. */ 69 typedef SimpleRenameMap RenameMap; 70 /** Typedef for the ROB. */ 71 typedef ::ROB<Impl> ROB; 72 /** Typedef for the instruction queue/scheduler. */ 73 typedef InstructionQueue<Impl> IQ; 74 /** Typedef for the memory dependence unit. */ 75 typedef ::MemDepUnit<StoreSet, Impl> MemDepUnit; 76 /** Typedef for the LSQ. */ 77 typedef ::LSQ<Impl> LSQ; 78 /** Typedef for the thread-specific LSQ units. */ 79 typedef ::LSQUnit<Impl> LSQUnit; 80 81 /** Typedef for fetch. */ 82 typedef DefaultFetch<Impl> Fetch; 83 /** Typedef for decode. */ 84 typedef DefaultDecode<Impl> Decode; 85 /** Typedef for rename. */ 86 typedef DefaultRename<Impl> Rename; 87 /** Typedef for Issue/Execute/Writeback. */ 88 typedef DefaultIEW<Impl> IEW; 89 /** Typedef for commit. */ 90 typedef DefaultCommit<Impl> Commit; 91 92 /** The struct for communication between fetch and decode. */ 93 typedef DefaultFetchDefaultDecode<Impl> FetchStruct; 94 95 /** The struct for communication between decode and rename. */ 96 typedef DefaultDecodeDefaultRename<Impl> DecodeStruct; 97 98 /** The struct for communication between rename and IEW. */ 99 typedef DefaultRenameDefaultIEW<Impl> RenameStruct; 100 101 /** The struct for communication between IEW and commit. */ 102 typedef DefaultIEWDefaultCommit<Impl> IEWStruct; 103 104 /** The struct for communication within the IEW stage. */ 105 typedef ::IssueStruct<Impl> IssueStruct; 106 107 /** The struct for all backwards communication. */ 108 typedef TimeBufStruct<Impl> TimeStruct; 109 110}; 111 112#endif //__CPU_O3_CPU_POLICY_HH__ 113