mathexpr_powermodel.hh

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#ifndef __SIM_MATHEXPR_POWERMODEL_PM_HH__
#define __SIM_MATHEXPR_POWERMODEL_PM_HH__

#include <unordered_map>

#include "params/MathExprPowerModel.hh"
#include "sim/mathexpr.hh"
#include "sim/power/power_model.hh"

namespace Stats {
    class Info;
}

class MathExprPowerModel : public PowerModelState
{
  public:

    typedef MathExprPowerModelParams Params;
    MathExprPowerModel(const Params *p);

    double getDynamicPower() const { return eval(dyn_expr); }

    double getStaticPower() const { return eval(st_expr); }

    double getStatValue(const std::string & name) const;

    void startup();

    void regStats();

  private:
    double eval(const MathExpr &expr) const;

    double tryEval(const MathExpr &expr) const;

    // Math expressions for dynamic and static power
    MathExpr dyn_expr, st_expr;

    // Basename of the object in the gem5 stats hierachy
    std::string basename;

    // Map that contains relevant stats for this power model
    std::unordered_map<std::string, Stats::Info*> stats_map;

    // Did the expression fail to evaluate (e.g., because a stat value
    // can't be resolved)
    mutable bool failed;
};

#endif