gem5/src/sim/power/power_model.cc
Brandon Potter a928a438b8 style: [patch 3/22] reduce include dependencies in some headers
Used cppclean to help identify useless includes and removed them. This
involved erroneously included headers, but also cases where forward
declarations could have been used rather than a full include.
2016-11-09 14:27:40 -06:00

139 lines
4.6 KiB
C++

/*
* Copyright (c) 2016 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: David Guillen Fandos
*/
#include "sim/power/power_model.hh"
#include "base/statistics.hh"
#include "params/PowerModel.hh"
#include "params/PowerModelState.hh"
#include "sim/clocked_object.hh"
#include "sim/sub_system.hh"
PowerModelState::PowerModelState(const Params *p)
: SimObject(p), _temp(0), clocked_object(NULL)
{
}
PowerModel::PowerModel(const Params *p)
: SimObject(p), states_pm(p->pm), subsystem(p->subsystem),
clocked_object(NULL)
{
panic_if(subsystem == NULL,
"Subsystem is NULL! This is not acceptable for a PowerModel!\n");
subsystem->registerPowerProducer(this);
}
void
PowerModel::setClockedObject(ClockedObject * clkobj)
{
this->clocked_object = clkobj;
for (auto & pms: states_pm)
pms->setClockedObject(clkobj);
}
void
PowerModel::thermalUpdateCallback(const double & temp)
{
for (auto & pms: states_pm)
pms->setTemperature(temp);
}
void
PowerModel::regProbePoints()
{
thermalListener.reset(new ThermalProbeListener (
*this, this->subsystem->getProbeManager(), "thermalUpdate"
));
}
PowerModel*
PowerModelParams::create()
{
return new PowerModel(this);
}
double
PowerModel::getDynamicPower() const
{
assert(clocked_object);
std::vector<double> w = clocked_object->pwrStateWeights();
// Same number of states (excluding UNDEFINED)
assert(w.size() - 1 == states_pm.size());
// Make sure we have no UNDEFINED state
warn_if(w[Enums::PwrState::UNDEFINED] > 0,
"SimObject in UNDEFINED power state! Power figures might be wrong!\n");
double power = 0;
for (unsigned i = 0; i < states_pm.size(); i++)
if (w[i + 1] > 0.0f)
power += states_pm[i]->getDynamicPower() * w[i + 1];
return power;
}
double
PowerModel::getStaticPower() const
{
assert(clocked_object);
std::vector<double> w = clocked_object->pwrStateWeights();
// Same number of states (excluding UNDEFINED)
assert(w.size() - 1 == states_pm.size());
// Make sure we have no UNDEFINED state
if (w[0] > 0)
warn("SimObject in UNDEFINED power state! "
"Power figures might be wrong!\n");
// We have N+1 states, being state #0 the default 'UNDEFINED' state
double power = 0;
for (unsigned i = 0; i < states_pm.size(); i++)
// Don't evaluate power if the object hasn't been in that state
// This fixes issues with NaNs and similar.
if (w[i + 1] > 0.0f)
power += states_pm[i]->getStaticPower() * w[i + 1];
return power;
}