power_state.hh

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#ifndef __SIM_POWER_STATE_HH__
#define __SIM_POWER_STATE_HH__
 
#include <set>
 
#include "base/callback.hh"
#include "base/statistics.hh"
#include "enums/PwrState.hh"
#include "params/PowerState.hh"
#include "sim/core.hh"
#include "sim/sim_object.hh"
 
class PowerDomain;
 
class PowerState : public SimObject
{
  public:
    PowerState(const PowerStateParams *p);
 
    typedef PowerStateParams Params;
    const Params* params() const
    {
        return reinterpret_cast<const Params*>(_params);
    }
 
    virtual void addFollower(PowerState* pwr_obj) {};
    void setControlledDomain(PowerDomain* pwr_dom);
 
    void serialize(CheckpointOut &cp) const override;
    void unserialize(CheckpointIn &cp) override;
 
    void set(Enums::PwrState p);
 
 
    inline Enums::PwrState get() const
    {
        return _currState;
    }
 
    inline std::string getName() const
    {
        return Enums::PwrStateStrings[_currState];
    }
 
    std::vector<double> getWeights() const;
 
    void computeStats();
 
    Enums::PwrState matchPwrState(Enums::PwrState p);
 
    std::set<Enums::PwrState> getPossibleStates() const
    {
        return possibleStates;
    }
 
  protected:
 
    Enums::PwrState _currState;
 
    std::set<Enums::PwrState> possibleStates;
 
    Tick prvEvalTick = 0;
 
    PowerDomain* controlledDomain = nullptr;
 
    struct PowerStateStats : public Stats::Group
    {
        PowerStateStats(PowerState &ps);
 
        void regStats() override;
        void preDumpStats() override;
 
        PowerState &powerState;
 
        Stats::Scalar numTransitions;
        Stats::Scalar numPwrMatchStateTransitions;
        Stats::Distribution ticksClkGated;
        Stats::Vector pwrStateResidencyTicks;
    } stats;
};
 
#endif //__SIM_POWER_STATE_HH__