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/*
* 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
*/
#ifndef __SIM_POWER_POWER_MODEL_HH__
#define __SIM_POWER_POWER_MODEL_HH__
#include "base/statistics.hh"
#include "enums/PMType.hh"
#include "params/PowerModel.hh"
#include "params/PowerModelState.hh"
#include "sim/probe/probe.hh"
class SimObject;
class ClockedObject;
/**
* A PowerModelState is an abstract class used as interface to get power
* figures out of SimObjects
*/
class PowerModelState : public SimObject
{
public:
typedef PowerModelStateParams Params;
PowerModelState(const Params *p);
/**
* Get the dynamic power consumption.
*
* @return Power (Watts) consumed by this object (dynamic component)
*/
virtual double getDynamicPower() const = 0;
/**
* Get the static power consumption.
*
* @return Power (Watts) consumed by this object (static component)
*/
virtual double getStaticPower() const = 0;
/**
* Temperature update.
*
* @param temp Current temperature of the HW part (Celsius)
*/
virtual void setTemperature(double temp) { _temp = temp; }
void setClockedObject(ClockedObject * clkobj) {
clocked_object = clkobj;
}
void regStats() {
dynamicPower
.method(this, &PowerModelState::getDynamicPower)
.name(params()->name + ".dynamic_power")
.desc("Dynamic power for this object (Watts)")
;
staticPower
.method(this, &PowerModelState::getStaticPower)
.name(params()->name + ".static_power")
.desc("Static power for this object (Watts)")
;
}
protected:
Stats::Value dynamicPower, staticPower;
/** Current temperature */
double _temp;
/** The clocked object we belong to */
ClockedObject * clocked_object;
};
/**
* @sa \ref gem5PowerModel "gem5 Power Model"
*
* A PowerModel is a class containing a power model for a SimObject.
* The PM describes the power consumption for every power state.
*/
class PowerModel : public SimObject
{
public:
typedef PowerModelParams Params;
PowerModel(const Params *p);
/**
* Get the dynamic power consumption.
*
* @return Power (Watts) consumed by this object (dynamic component)
*/
double getDynamicPower() const;
/**
* Get the static power consumption.
*
* @return Power (Watts) consumed by this object (static component)
*/
double getStaticPower() const;
void regStats() {
dynamicPower
.method(this, &PowerModel::getDynamicPower)
.name(params()->name + ".dynamic_power")
.desc("Dynamic power for this power state")
;
staticPower
.method(this, &PowerModel::getStaticPower)
.name(params()->name + ".static_power")
.desc("Static power for this power state")
;
}
void setClockedObject(ClockedObject *clkobj);
virtual void regProbePoints();
void thermalUpdateCallback(const double & temp);
protected:
/** Listener class to catch thermal events */
class ThermalProbeListener : public ProbeListenerArgBase<double>
{
public:
ThermalProbeListener(PowerModel &_pm, ProbeManager *pm,
const std::string &name)
: ProbeListenerArgBase(pm, name), pm(_pm) {}
void notify(const double &temp)
{
pm.thermalUpdateCallback(temp);
}
protected:
PowerModel ±
};
Stats::Value dynamicPower, staticPower;
/** Actual power models (one per power state) */
std::vector<PowerModelState*> states_pm;
/** Listener to catch temperature changes in the SubSystem */
std::unique_ptr<ThermalProbeListener> thermalListener;
/** The subsystem this power model belongs to */
SubSystem * subsystem;
/** The clocked object we belong to */
ClockedObject * clocked_object;
/** The type of power model - collects all power, static or dynamic only */
Enums::PMType power_model_type;
};
#endif
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