diff --git a/drivers/devfreq/governor_memlat.h b/drivers/devfreq/governor_memlat.h
new file mode 100644
index 0000000..19a3500
--- /dev/null
+++ b/drivers/devfreq/governor_memlat.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _GOVERNOR_BW_HWMON_H
+#define _GOVERNOR_BW_HWMON_H
+
+#include <linux/kernel.h>
+#include <linux/devfreq.h>
+
+/**
+ * struct dev_stats - Device stats
+ * @inst_count:			Number of instructions executed.
+ * @mem_count:			Number of memory accesses made.
+ * @freq:			Effective frequency of the device in the
+ *				last interval.
+ */
+struct dev_stats {
+	int id;
+	unsigned long inst_count;
+	unsigned long mem_count;
+	unsigned long freq;
+};
+
+/**
+ * struct memlat_hwmon - Memory Latency HW monitor info
+ * @start_hwmon:		Start the HW monitoring
+ * @stop_hwmon:			Stop the HW monitoring
+ * @get_cnt:			Return the number of intructions executed,
+ *				memory accesses and effective frequency
+ * @dev:			Pointer to device that this HW monitor can
+ *				monitor.
+ * @of_node:			OF node of device that this HW monitor can
+ *				monitor.
+ * @df:				Devfreq node that this HW monitor is being
+ *				used for. NULL when not actively in use and
+ *				non-NULL when in use.
+ * @num_cores:			Number of cores that are monitored by the
+ *				hardware monitor.
+ * @core_stats:			Array containing instruction count, memory
+ *				accesses and effective frequency for each core.
+ *
+ * One of dev or of_node needs to be specified for a successful registration.
+ *
+ */
+struct memlat_hwmon {
+	int (*start_hwmon)(struct memlat_hwmon *hw);
+	void (*stop_hwmon)(struct memlat_hwmon *hw);
+	unsigned long (*get_cnt)(struct memlat_hwmon *hw);
+	struct device *dev;
+	struct device_node *of_node;
+
+	unsigned int num_cores;
+	struct dev_stats *core_stats;
+
+	struct devfreq *df;
+};
+
+#ifdef CONFIG_DEVFREQ_GOV_MEMLAT
+int register_memlat(struct device *dev, struct memlat_hwmon *hw);
+int update_memlat(struct memlat_hwmon *hw);
+#else
+static inline int register_memlat(struct device *dev,
+					struct memlat_hwmon *hw)
+{
+	return 0;
+}
+static inline int update_memlat(struct memlat_hwmon *hw)
+{
+	return 0;
+}
+#endif
+
+#endif /* _GOVERNOR_BW_HWMON_H */