ticked_object.cc revision 12125
110259SAndrew.Bardsley@arm.com/* 212113Sjose.marinho@arm.com * Copyright (c) 2013-2014, 2017 ARM Limited 310259SAndrew.Bardsley@arm.com * All rights reserved 410259SAndrew.Bardsley@arm.com * 510259SAndrew.Bardsley@arm.com * The license below extends only to copyright in the software and shall 610259SAndrew.Bardsley@arm.com * not be construed as granting a license to any other intellectual 710259SAndrew.Bardsley@arm.com * property including but not limited to intellectual property relating 810259SAndrew.Bardsley@arm.com * to a hardware implementation of the functionality of the software 910259SAndrew.Bardsley@arm.com * licensed hereunder. You may use the software subject to the license 1010259SAndrew.Bardsley@arm.com * terms below provided that you ensure that this notice is replicated 1110259SAndrew.Bardsley@arm.com * unmodified and in its entirety in all distributions of the software, 1210259SAndrew.Bardsley@arm.com * modified or unmodified, in source code or in binary form. 1310259SAndrew.Bardsley@arm.com * 1410259SAndrew.Bardsley@arm.com * Redistribution and use in source and binary forms, with or without 1510259SAndrew.Bardsley@arm.com * modification, are permitted provided that the following conditions are 1610259SAndrew.Bardsley@arm.com * met: redistributions of source code must retain the above copyright 1710259SAndrew.Bardsley@arm.com * notice, this list of conditions and the following disclaimer; 1810259SAndrew.Bardsley@arm.com * redistributions in binary form must reproduce the above copyright 1910259SAndrew.Bardsley@arm.com * notice, this list of conditions and the following disclaimer in the 2010259SAndrew.Bardsley@arm.com * documentation and/or other materials provided with the distribution; 2110259SAndrew.Bardsley@arm.com * neither the name of the copyright holders nor the names of its 2210259SAndrew.Bardsley@arm.com * contributors may be used to endorse or promote products derived from 2310259SAndrew.Bardsley@arm.com * this software without specific prior written permission. 2410259SAndrew.Bardsley@arm.com * 2510259SAndrew.Bardsley@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2610259SAndrew.Bardsley@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2710259SAndrew.Bardsley@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2810259SAndrew.Bardsley@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2910259SAndrew.Bardsley@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 3010259SAndrew.Bardsley@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 3110259SAndrew.Bardsley@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 3210259SAndrew.Bardsley@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 3310259SAndrew.Bardsley@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 3410259SAndrew.Bardsley@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 3510259SAndrew.Bardsley@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3610259SAndrew.Bardsley@arm.com * 3710259SAndrew.Bardsley@arm.com * Authors: Andrew Bardsley 3810259SAndrew.Bardsley@arm.com */ 3910259SAndrew.Bardsley@arm.com 4010259SAndrew.Bardsley@arm.com#include "sim/ticked_object.hh" 4110259SAndrew.Bardsley@arm.com 4211800Sbrandon.potter@amd.com#include "params/TickedObject.hh" 4311800Sbrandon.potter@amd.com#include "sim/clocked_object.hh" 4411800Sbrandon.potter@amd.com 4510259SAndrew.Bardsley@arm.comTicked::Ticked(ClockedObject &object_, 4610259SAndrew.Bardsley@arm.com Stats::Scalar *imported_num_cycles, 4710259SAndrew.Bardsley@arm.com Event::Priority priority) : 4810259SAndrew.Bardsley@arm.com object(object_), 4912125Sspwilson2@wisc.edu event([this]{ processClockEvent(); }, name(), false, priority), 5010259SAndrew.Bardsley@arm.com running(false), 5110259SAndrew.Bardsley@arm.com lastStopped(0), 5210259SAndrew.Bardsley@arm.com /* Allocate numCycles if an external stat wasn't passed in */ 5310259SAndrew.Bardsley@arm.com numCyclesLocal((imported_num_cycles ? NULL : new Stats::Scalar)), 5410259SAndrew.Bardsley@arm.com numCycles((imported_num_cycles ? *imported_num_cycles : 5510259SAndrew.Bardsley@arm.com *numCyclesLocal)) 5610259SAndrew.Bardsley@arm.com{ } 5710259SAndrew.Bardsley@arm.com 5810259SAndrew.Bardsley@arm.comvoid 5912125Sspwilson2@wisc.eduTicked::processClockEvent() { 6012125Sspwilson2@wisc.edu ++tickCycles; 6112125Sspwilson2@wisc.edu ++numCycles; 6212125Sspwilson2@wisc.edu countCycles(Cycles(1)); 6312125Sspwilson2@wisc.edu evaluate(); 6412125Sspwilson2@wisc.edu if (running) 6512125Sspwilson2@wisc.edu object.schedule(event, object.clockEdge(Cycles(1))); 6612125Sspwilson2@wisc.edu} 6712125Sspwilson2@wisc.edu 6812125Sspwilson2@wisc.eduvoid 6910259SAndrew.Bardsley@arm.comTicked::regStats() 7010259SAndrew.Bardsley@arm.com{ 7110259SAndrew.Bardsley@arm.com if (numCyclesLocal) { 7210259SAndrew.Bardsley@arm.com numCycles 7312113Sjose.marinho@arm.com .name(object.name() + ".totalTickCycles") 7410259SAndrew.Bardsley@arm.com .desc("Number of cycles that the object ticked or was stopped"); 7510259SAndrew.Bardsley@arm.com } 7610259SAndrew.Bardsley@arm.com 7710259SAndrew.Bardsley@arm.com tickCycles 7810259SAndrew.Bardsley@arm.com .name(object.name() + ".tickCycles") 7910259SAndrew.Bardsley@arm.com .desc("Number of cycles that the object actually ticked"); 8010259SAndrew.Bardsley@arm.com 8110259SAndrew.Bardsley@arm.com idleCycles 8210259SAndrew.Bardsley@arm.com .name(object.name() + ".idleCycles") 8310259SAndrew.Bardsley@arm.com .desc("Total number of cycles that the object has spent stopped"); 8410259SAndrew.Bardsley@arm.com idleCycles = numCycles - tickCycles; 8510259SAndrew.Bardsley@arm.com} 8610259SAndrew.Bardsley@arm.com 8710259SAndrew.Bardsley@arm.comvoid 8810905Sandreas.sandberg@arm.comTicked::serialize(CheckpointOut &cp) const 8910259SAndrew.Bardsley@arm.com{ 9010259SAndrew.Bardsley@arm.com uint64_t lastStoppedUint = lastStopped; 9110259SAndrew.Bardsley@arm.com 9210905Sandreas.sandberg@arm.com paramOut(cp, "lastStopped", lastStoppedUint); 9310259SAndrew.Bardsley@arm.com} 9410259SAndrew.Bardsley@arm.com 9510259SAndrew.Bardsley@arm.comvoid 9610905Sandreas.sandberg@arm.comTicked::unserialize(CheckpointIn &cp) 9710259SAndrew.Bardsley@arm.com{ 9810320SAndrew.Bardsley@arm.com uint64_t lastStoppedUint = 0; 9910259SAndrew.Bardsley@arm.com 10010320SAndrew.Bardsley@arm.com /* lastStopped is optional on checkpoint restore as this object may be 10110320SAndrew.Bardsley@arm.com * being restored from one which has a common base (and so possibly 10210320SAndrew.Bardsley@arm.com * many common checkpointed values) but where Ticked is used in the 10310320SAndrew.Bardsley@arm.com * checkpointed object but not this one. 10410320SAndrew.Bardsley@arm.com * An example would be a CPU model using Ticked restores from a 10510320SAndrew.Bardsley@arm.com * simple CPU without without Ticked */ 10610905Sandreas.sandberg@arm.com optParamIn(cp, "lastStopped", lastStoppedUint); 10710259SAndrew.Bardsley@arm.com 10810259SAndrew.Bardsley@arm.com lastStopped = Cycles(lastStoppedUint); 10910259SAndrew.Bardsley@arm.com} 11010259SAndrew.Bardsley@arm.com 11112113Sjose.marinho@arm.comTickedObject::TickedObject(const TickedObjectParams *params, 11210259SAndrew.Bardsley@arm.com Event::Priority priority) : 11310259SAndrew.Bardsley@arm.com ClockedObject(params), 11410259SAndrew.Bardsley@arm.com /* Make numCycles in Ticked */ 11510259SAndrew.Bardsley@arm.com Ticked(*this, NULL, priority) 11610259SAndrew.Bardsley@arm.com{ } 11710259SAndrew.Bardsley@arm.com 11810259SAndrew.Bardsley@arm.comvoid 11910259SAndrew.Bardsley@arm.comTickedObject::regStats() 12010259SAndrew.Bardsley@arm.com{ 12110259SAndrew.Bardsley@arm.com Ticked::regStats(); 12212113Sjose.marinho@arm.com ClockedObject::regStats(); 12310259SAndrew.Bardsley@arm.com} 12410259SAndrew.Bardsley@arm.com 12510259SAndrew.Bardsley@arm.comvoid 12610905Sandreas.sandberg@arm.comTickedObject::serialize(CheckpointOut &cp) const 12710259SAndrew.Bardsley@arm.com{ 12810905Sandreas.sandberg@arm.com Ticked::serialize(cp); 12910905Sandreas.sandberg@arm.com ClockedObject::serialize(cp); 13010259SAndrew.Bardsley@arm.com} 13110259SAndrew.Bardsley@arm.comvoid 13210905Sandreas.sandberg@arm.comTickedObject::unserialize(CheckpointIn &cp) 13310259SAndrew.Bardsley@arm.com{ 13410905Sandreas.sandberg@arm.com Ticked::unserialize(cp); 13510905Sandreas.sandberg@arm.com ClockedObject::unserialize(cp); 13610259SAndrew.Bardsley@arm.com} 137