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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 */
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