c20578a43bd98df726f13445d7948266549dcb62
2 * Copyright (c) 2002-2006 The Regents of The University of Michigan
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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
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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
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28 * Authors: Steve Raasch
33 #include "base/misc.hh"
34 #include "cpu/func_unit.hh"
35 #include "sim/builder.hh"
40 ////////////////////////////////////////////////////////////////////////////
46 capabilityList
.reset();
51 FuncUnit::FuncUnit(const FuncUnit
&fu
)
54 for (int i
= 0; i
< Num_OpClasses
; ++i
) {
55 opLatencies
[i
] = fu
.opLatencies
[i
];
56 issueLatencies
[i
] = fu
.issueLatencies
[i
];
59 capabilityList
= fu
.capabilityList
;
64 FuncUnit::addCapability(OpClass cap
, unsigned oplat
, unsigned issuelat
)
66 if (issuelat
== 0 || oplat
== 0)
67 panic("FuncUnit: you don't really want a zero-cycle latency do you?");
69 capabilityList
.set(cap
);
71 opLatencies
[cap
] = oplat
;
72 issueLatencies
[cap
] = issuelat
;
76 FuncUnit::provides(OpClass capability
)
78 return capabilityList
[capability
];
82 FuncUnit::capabilities()
84 return capabilityList
;
88 FuncUnit::opLatency(OpClass cap
)
90 return opLatencies
[cap
];
94 FuncUnit::issueLatency(OpClass capability
)
96 return issueLatencies
[capability
];
99 ////////////////////////////////////////////////////////////////////////////
101 // The SimObjects we use to get the FU information into the simulator
103 ////////////////////////////////////////////////////////////////////////////
106 // We use 2 objects to specify this data in the INI file:
107 // (1) OpDesc - Describes the operation class & latencies
108 // (multiple OpDesc objects can refer to the same
109 // operation classes)
110 // (2) FUDesc - Describes the operations available in the unit &
111 // the number of these units
117 // The operation-class description object
120 BEGIN_DECLARE_SIM_OBJECT_PARAMS(OpDesc
)
122 SimpleEnumParam
<OpClass
> opClass
;
123 Param
<unsigned> opLat
;
124 Param
<unsigned> issueLat
;
126 END_DECLARE_SIM_OBJECT_PARAMS(OpDesc
)
128 BEGIN_INIT_SIM_OBJECT_PARAMS(OpDesc
)
130 INIT_ENUM_PARAM(opClass
, "type of operation", opClassStrings
),
131 INIT_PARAM(opLat
, "cycles until result is available"),
132 INIT_PARAM(issueLat
, "cycles until another can be issued")
134 END_INIT_SIM_OBJECT_PARAMS(OpDesc
)
137 CREATE_SIM_OBJECT(OpDesc
)
139 return new OpDesc(getInstanceName(), opClass
, opLat
, issueLat
);
142 REGISTER_SIM_OBJECT("OpDesc", OpDesc
)
149 BEGIN_DECLARE_SIM_OBJECT_PARAMS(FUDesc
)
151 SimObjectVectorParam
<OpDesc
*> opList
;
152 Param
<unsigned> count
;
154 END_DECLARE_SIM_OBJECT_PARAMS(FUDesc
)
157 BEGIN_INIT_SIM_OBJECT_PARAMS(FUDesc
)
159 INIT_PARAM(opList
, "list of operation classes for this FU type"),
160 INIT_PARAM(count
, "number of these FU's available")
162 END_INIT_SIM_OBJECT_PARAMS(FUDesc
)
165 CREATE_SIM_OBJECT(FUDesc
)
167 return new FUDesc(getInstanceName(), opList
, count
);
170 REGISTER_SIM_OBJECT("FUDesc", FUDesc
)