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