| /* |
| * Copyright (c) 2016-2018 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), power_model_type(p->pm_type) |
| { |
| 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); |
| |
| if (power_model_type == Enums::PMType::Static) { |
| // This power model only collects static data |
| return 0; |
| } |
| 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(); |
| |
| if (power_model_type == Enums::PMType::Dynamic) { |
| // This power model only collects dynamic data |
| return 0; |
| } |
| |
| // 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; |
| } |