mirror of https://github.com/F-Stack/f-stack.git
83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _RTE_CPUFLAGS_H_
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#define _RTE_CPUFLAGS_H_
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/**
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* @file
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* Architecture specific API to determine available CPU features at runtime.
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*/
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#include <errno.h>
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/**
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* Enumeration of all CPU features supported
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*/
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enum rte_cpu_flag_t;
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/**
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* Get name of CPU flag
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*
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* @param feature
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* CPU flag ID
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* @return
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* flag name
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* NULL if flag ID is invalid
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*/
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const char *
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rte_cpu_get_flag_name(enum rte_cpu_flag_t feature);
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/**
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* Function for checking a CPU flag availability
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*
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* @param feature
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* CPU flag to query CPU for
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* @return
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* 1 if flag is available
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* 0 if flag is not available
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* -ENOENT if flag is invalid
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*/
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int
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rte_cpu_get_flag_enabled(enum rte_cpu_flag_t feature);
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/**
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* This function checks that the currently used CPU supports the CPU features
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* that were specified at compile time. It is called automatically within the
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* EAL, so does not need to be used by applications.
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*/
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void
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rte_cpu_check_supported(void);
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#endif /* _RTE_CPUFLAGS_H_ */
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