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diff --git a/liboffloadmic/include/coi/common/COIPerf_common.h b/liboffloadmic/include/coi/common/COIPerf_common.h
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+/*
+ * Copyright 2010-2013 Intel Corporation.
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published
+ * by the Free Software Foundation, version 2.1.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA.
+ *
+ * Disclaimer: The codes contained in these modules may be specific
+ * to the Intel Software Development Platform codenamed Knights Ferry,
+ * and the Intel product codenamed Knights Corner, and are not backward
+ * compatible with other Intel products. Additionally, Intel will NOT
+ * support the codes or instruction set in future products.
+ *
+ * Intel offers no warranty of any kind regarding the code. This code is
+ * licensed on an "AS IS" basis and Intel is not obligated to provide
+ * any support, assistance, installation, training, or other services
+ * of any kind. Intel is also not obligated to provide any updates,
+ * enhancements or extensions. Intel specifically disclaims any warranty
+ * of merchantability, non-infringement, fitness for any particular
+ * purpose, and any other warranty.
+ *
+ * Further, Intel disclaims all liability of any kind, including but
+ * not limited to liability for infringement of any proprietary rights,
+ * relating to the use of the code, even if Intel is notified of the
+ * possibility of such liability. Except as expressly stated in an Intel
+ * license agreement provided with this code and agreed upon with Intel,
+ * no license, express or implied, by estoppel or otherwise, to any
+ * intellectual property rights is granted herein.
+ */
+
+#ifndef _COIPERF_COMMON_H
+#define _COIPERF_COMMON_H
+
+/** @ingroup COIPerf
+ *  @addtogroup COIPerfCommon
+@{
+
+* @file common/COIPerf_common.h
+* Performance Analysis API */
+#ifndef DOXYGEN_SHOULD_SKIP_THIS
+#include "../common/COITypes_common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#endif // DOXYGEN_SHOULD_SKIP_THIS
+
+///////////////////////////////////////////////////////////////////////////////
+///
+/// Returns a performance counter value
+///
+/// This function returns a performance counter value that increments
+/// at a constant rate for all time and is coherent across all cores.
+///
+/// @return Current performance counter value or 0 if no performance counter
+/////         is available
+///
+///
+COIACCESSAPI
+uint64_t COIPerfGetCycleCounter(void);
+
+///////////////////////////////////////////////////////////////////////////////
+///
+/// Returns the calculated system frequency in hertz.
+///
+/// @return Current system frequency in hertz.
+///
+COIACCESSAPI
+uint64_t COIPerfGetCycleFrequency(void);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+/*! @} */
+
+#endif /* _COIPERF_COMMON_H */