1/*
2 * Copyright (c) 2002-2006 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: Steve Raasch
29 */
30
31#ifndef __CPU_FUNC_UNIT_HH__
32#define __CPU_FUNC_UNIT_HH__
33
34#include <bitset>
35#include <string>
36#include <vector>
37
38#include "cpu/op_class.hh"
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39#include "params/OpDesc.hh"
40#include "params/FUDesc.hh" |
41#include "sim/sim_object.hh"
42
43////////////////////////////////////////////////////////////////////////////
44//
45// Structures used ONLY during the initialization phase...
46//
47//
48//
49
50struct OpDesc : public SimObject
51{
52 OpClass opClass;
53 unsigned opLat;
54 unsigned issueLat;
55
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54 OpDesc(std::string name, OpClass c, unsigned o, unsigned i)
55 : SimObject(name), opClass(c), opLat(o), issueLat(i) {};
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56 OpDesc(const OpDescParams *p)
57 : SimObject(p), opClass(p->opClass), opLat(p->opLat),
58 issueLat(p->issueLat) {}; |
59};
60
61struct FUDesc : public SimObject
62{
63 std::vector<OpDesc *> opDescList;
64 unsigned number;
65
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63 FUDesc(std::string name, std::vector<OpDesc *> l, unsigned n)
64 : SimObject(name), opDescList(l), number(n) {};
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66 FUDesc(const FUDescParams *p)
67 : SimObject(p), opDescList(p->opList), number(p->count) {}; |
68};
69
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67typedef std::vector::iterator OPDDiterator;
68typedef std::vector::iterator FUDDiterator;
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70typedef std::vector<OpDesc *>::const_iterator OPDDiterator;
71typedef std::vector<FUDesc *>::const_iterator FUDDiterator; |
72
73
74
75
76////////////////////////////////////////////////////////////////////////////
77//
78// The actual FU object
79//
80//
81//
82class FuncUnit
83{
84 private:
85 unsigned opLatencies[Num_OpClasses];
86 unsigned issueLatencies[Num_OpClasses];
87 std::bitset<Num_OpClasses> capabilityList;
88
89 public:
90 FuncUnit();
91 FuncUnit(const FuncUnit &fu);
92
93 std::string name;
94
95 void addCapability(OpClass cap, unsigned oplat, unsigned issuelat);
96
97 bool provides(OpClass capability);
98 std::bitset<Num_OpClasses> capabilities();
99
100 unsigned &opLatency(OpClass capability);
101 unsigned issueLatency(OpClass capability);
102};
103
104#endif // __FU_POOL_HH__
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