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88 lines
3.0 KiB
C
88 lines
3.0 KiB
C
/*
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* Copyright 2010-2013 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation, version 2.1.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA.
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*
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* Disclaimer: The codes contained in these modules may be specific
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* to the Intel Software Development Platform codenamed Knights Ferry,
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* and the Intel product codenamed Knights Corner, and are not backward
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* compatible with other Intel products. Additionally, Intel will NOT
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* support the codes or instruction set in future products.
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*
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* Intel offers no warranty of any kind regarding the code. This code is
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* licensed on an "AS IS" basis and Intel is not obligated to provide
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* any support, assistance, installation, training, or other services
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* of any kind. Intel is also not obligated to provide any updates,
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* enhancements or extensions. Intel specifically disclaims any warranty
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* of merchantability, non-infringement, fitness for any particular
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* purpose, and any other warranty.
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*
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* Further, Intel disclaims all liability of any kind, including but
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* not limited to liability for infringement of any proprietary rights,
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* relating to the use of the code, even if Intel is notified of the
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* possibility of such liability. Except as expressly stated in an Intel
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* license agreement provided with this code and agreed upon with Intel,
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* no license, express or implied, by estoppel or otherwise, to any
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* intellectual property rights is granted herein.
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*/
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#ifndef _COIPERF_COMMON_H
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#define _COIPERF_COMMON_H
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/** @ingroup COIPerf
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* @addtogroup COIPerfCommon
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@{
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* @file common/COIPerf_common.h
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* Performance Analysis API */
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#ifndef DOXYGEN_SHOULD_SKIP_THIS
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#include "../common/COITypes_common.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#endif // DOXYGEN_SHOULD_SKIP_THIS
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///////////////////////////////////////////////////////////////////////////////
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///
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/// Returns a performance counter value
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///
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/// This function returns a performance counter value that increments
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/// at a constant rate for all time and is coherent across all cores.
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///
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/// @return Current performance counter value or 0 if no performance counter
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///// is available
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///
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///
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COIACCESSAPI
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uint64_t COIPerfGetCycleCounter(void);
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///////////////////////////////////////////////////////////////////////////////
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///
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/// Returns the calculated system frequency in hertz.
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///
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/// @return Current system frequency in hertz.
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///
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COIACCESSAPI
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uint64_t COIPerfGetCycleFrequency(void);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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/*! @} */
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#endif /* _COIPERF_COMMON_H */
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