2 * Copyright (c) 2013-2014, 2017 ARM Limited
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25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 * Authors: Andrew Bardsley
40 #include "sim/ticked_object.hh"
42 #include "params/TickedObject.hh"
43 #include "sim/clocked_object.hh"
45 Ticked::Ticked(ClockedObject
&object_
,
46 Stats::Scalar
*imported_num_cycles
,
47 Event::Priority priority
) :
49 event([this]{ processClockEvent(); }, name(), false, priority
),
52 /* Allocate numCycles if an external stat wasn't passed in */
53 numCyclesLocal((imported_num_cycles
? NULL
: new Stats::Scalar
)),
54 numCycles((imported_num_cycles
? *imported_num_cycles
:
59 Ticked::processClockEvent() {
62 countCycles(Cycles(1));
65 object
.schedule(event
, object
.clockEdge(Cycles(1)));
73 .name(object
.name() + ".totalTickCycles")
74 .desc("Number of cycles that the object ticked or was stopped");
78 .name(object
.name() + ".tickCycles")
79 .desc("Number of cycles that the object actually ticked");
82 .name(object
.name() + ".idleCycles")
83 .desc("Total number of cycles that the object has spent stopped");
84 idleCycles
= numCycles
- tickCycles
;
88 Ticked::serialize(CheckpointOut
&cp
) const
90 uint64_t lastStoppedUint
= lastStopped
;
92 paramOut(cp
, "lastStopped", lastStoppedUint
);
96 Ticked::unserialize(CheckpointIn
&cp
)
98 uint64_t lastStoppedUint
= 0;
100 /* lastStopped is optional on checkpoint restore as this object may be
101 * being restored from one which has a common base (and so possibly
102 * many common checkpointed values) but where Ticked is used in the
103 * checkpointed object but not this one.
104 * An example would be a CPU model using Ticked restores from a
105 * simple CPU without without Ticked */
106 optParamIn(cp
, "lastStopped", lastStoppedUint
);
108 lastStopped
= Cycles(lastStoppedUint
);
111 TickedObject::TickedObject(const TickedObjectParams
*params
,
112 Event::Priority priority
) :
113 ClockedObject(params
),
114 /* Make numCycles in Ticked */
115 Ticked(*this, NULL
, priority
)
119 TickedObject::regStats()
122 ClockedObject::regStats();
126 TickedObject::serialize(CheckpointOut
&cp
) const
128 Ticked::serialize(cp
);
129 ClockedObject::serialize(cp
);
132 TickedObject::unserialize(CheckpointIn
&cp
)
134 Ticked::unserialize(cp
);
135 ClockedObject::unserialize(cp
);