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diff --git a/src/sim/power/mathexpr_powermodel.hh b/src/sim/power/mathexpr_powermodel.hh
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+/*
+ * Copyright (c) 2015 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_MATHEXPR_POWERMODEL_PM_HH__
+#define __SIM_MATHEXPR_POWERMODEL_PM_HH__
+
+#include <unordered_map>
+
+#include "base/statistics.hh"
+#include "params/MathExprPowerModel.hh"
+#include "sim/mathexpr.hh"
+#include "sim/power/power_model.hh"
+#include "sim/sim_object.hh"
+
+/**
+ * A Equation power model. The power is represented as a combination
+ * of some stats and automatic variables (like temperature).
+ */
+class MathExprPowerModel : public PowerModelState
+{
+  public:
+
+    typedef MathExprPowerModelParams Params;
+    MathExprPowerModel(const Params *p);
+
+    /**
+     * Get the dynamic power consumption.
+     *
+     * @return Power (Watts) consumed by this object (dynamic component)
+     */
+    double getDynamicPower() const {
+        return dyn_expr.eval(
+            std::bind(&MathExprPowerModel::getStatValue,
+                this, std::placeholders::_1)
+        );
+    }
+
+    /**
+     * Get the static power consumption.
+     *
+     * @return Power (Watts) consumed by this object (static component)
+     */
+    double getStaticPower() const {
+        return st_expr.eval(
+            std::bind(&MathExprPowerModel::getStatValue,
+                this, std::placeholders::_1)
+        );
+    }
+
+    /**
+     * Get the value for a variable (maps to a stat)
+     *
+     * @param name Name of the variable to retrieve the value from
+     *
+     * @return Power (Watts) consumed by this object (static component)
+     */
+    double getStatValue(const std::string & name) const;
+
+    void startup();
+
+    void regStats();
+
+  private:
+
+    // 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;
+};
+
+#endif