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diff --git a/arm_compute/runtime/CL/CLTunerTypes.h b/arm_compute/runtime/CL/CLTunerTypes.h
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+/*
+ * Copyright (c) 2019 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef __ARM_COMPUTE_CLTUNER_TYPES_H__
+#define __ARM_COMPUTE_CLTUNER_TYPES_H__
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/utils/misc/Utility.h"
+#include <map>
+
+namespace arm_compute
+{
+/**< OpenCL tuner modes */
+enum class CLTunerMode
+{
+    EXHAUSTIVE, /**< Searches all possible LWS configurations while tuning */
+    NORMAL,     /**< Searches a subset of LWS configurations while tuning */
+    RAPID       /**< Searches a minimal subset of LWS configurations while tuning */
+};
+
+/** Converts a string to a strong types enumeration @ref CLTunerMode
+ *
+ * @param[in] name String to convert
+ *
+ * @return Converted CLTunerMode enumeration
+ */
+inline CLTunerMode tuner_mode_from_name(const std::string &name)
+{
+    static const std::map<std::string, CLTunerMode> tuner_modes =
+    {
+        { "exhaustive", CLTunerMode::EXHAUSTIVE },
+        { "normal", CLTunerMode::NORMAL },
+        { "rapid", CLTunerMode::RAPID },
+    };
+
+#ifndef ARM_COMPUTE_EXCEPTIONS_DISABLED
+    try
+    {
+#endif /* ARM_COMPUTE_EXCEPTIONS_DISABLED */
+        return tuner_modes.at(arm_compute::utility::tolower(name));
+
+#ifndef ARM_COMPUTE_EXCEPTIONS_DISABLED
+    }
+    catch(const std::out_of_range &)
+    {
+        throw std::invalid_argument(name);
+    }
+#endif /* ARM_COMPUTE_EXCEPTIONS_DISABLED */
+}
+
+/** Input Stream operator for @ref CLTunerMode
+ *
+ * @param[in]  stream     Stream to parse
+ * @param[out] tuner_mode Output tuner mode
+ *
+ * @return Updated stream
+ */
+inline ::std::istream &operator>>(::std::istream &stream, CLTunerMode &tuner_mode)
+{
+    std::string value;
+    stream >> value;
+    tuner_mode = tuner_mode_from_name(value);
+    return stream;
+}
+} // namespace arm_compute
+#endif /*__ARM_COMPUTE_CLTUNER_TYPES_H__ */