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;

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45#include "cpu/o3/commit.hh"
46#include "cpu/o3/decode.hh"
47#include "cpu/o3/fetch.hh"
48#include "cpu/o3/iew.hh"
49#include "cpu/o3/rename.hh"
50
51#include "cpu/o3/comm.hh"
52
53/**
54 * Struct that defines the key classes to be used by the CPU. All
55 * classes use the typedefs defined here to determine what are the
56 * classes of the other stages and communication buffers. In order to
57 * change a structure such as the IQ, simply change the typedef here
58 * to use the desired class instead, and recompile. In order to
59 * create a different CPU to be used simultaneously with this one, see
60 * the alpha_impl.hh file for instructions.
61 */
62template<class Impl>
63struct SimpleCPUPolicy
64{
65 /** Typedef for the branch prediction unit (which includes the BP,
66 * RAS, and BTB).
67 */
68 typedef BPredUnit<Impl> BPredUnit;
69 /** Typedef for the register file. Most classes assume a unified
70 * physical register file.
71 */
72 typedef PhysRegFile<Impl> RegFile;
73 /** Typedef for the freelist of registers. */
74 typedef SimpleFreeList FreeList;
75 /** Typedef for the rename map. */
76 typedef SimpleRenameMap RenameMap;
77 /** Typedef for the ROB. */
78 typedef ROB<Impl> ROB;
79 /** Typedef for the instruction queue/scheduler. */
80 typedef InstructionQueue<Impl> IQ;
81 /** Typedef for the memory dependence unit. */
82 typedef MemDepUnit<StoreSet, Impl> MemDepUnit;
83 /** Typedef for the LSQ. */
84 typedef LSQ<Impl> LSQ;
85 /** Typedef for the thread-specific LSQ units. */
86 typedef LSQUnit<Impl> LSQUnit;
87
88 /** Typedef for fetch. */
89 typedef DefaultFetch<Impl> Fetch;
90 /** Typedef for decode. */
91 typedef DefaultDecode<Impl> Decode;
92 /** Typedef for rename. */
93 typedef DefaultRename<Impl> Rename;
94 /** Typedef for Issue/Execute/Writeback. */
95 typedef DefaultIEW<Impl> IEW;
96 /** Typedef for commit. */
97 typedef DefaultCommit<Impl> Commit;
98
99 /** The struct for communication between fetch and decode. */
100 typedef DefaultFetchDefaultDecode<Impl> FetchStruct;
101
102 /** The struct for communication between decode and rename. */
103 typedef DefaultDecodeDefaultRename<Impl> DecodeStruct;
104

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