mirror of https://github.com/F-Stack/f-stack.git
138 lines
4.1 KiB
C
138 lines
4.1 KiB
C
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/*-
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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_MEMCPY_H_
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#define _RTE_MEMCPY_H_
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/**
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* @file
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*
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* Functions for vectorised implementation of memcpy().
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*/
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/**
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* Copy 16 bytes from one location to another using optimised
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* instructions. The locations should not overlap.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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*/
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static inline void
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rte_mov16(uint8_t *dst, const uint8_t *src);
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/**
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* Copy 32 bytes from one location to another using optimised
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* instructions. The locations should not overlap.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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*/
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static inline void
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rte_mov32(uint8_t *dst, const uint8_t *src);
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/**
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* Copy 48 bytes from one location to another using optimised
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* instructions. The locations should not overlap.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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*/
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static inline void
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rte_mov48(uint8_t *dst, const uint8_t *src);
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/**
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* Copy 64 bytes from one location to another using optimised
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* instructions. The locations should not overlap.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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*/
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static inline void
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rte_mov64(uint8_t *dst, const uint8_t *src);
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/**
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* Copy 128 bytes from one location to another using optimised
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* instructions. The locations should not overlap.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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*/
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static inline void
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rte_mov128(uint8_t *dst, const uint8_t *src);
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/**
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* Copy 256 bytes from one location to another using optimised
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* instructions. The locations should not overlap.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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*/
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static inline void
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rte_mov256(uint8_t *dst, const uint8_t *src);
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#ifdef __DOXYGEN__
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/**
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* Copy bytes from one location to another. The locations must not overlap.
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*
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* @note This is implemented as a macro, so it's address should not be taken
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* and care is needed as parameter expressions may be evaluated multiple times.
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*
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* @param dst
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* Pointer to the destination of the data.
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* @param src
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* Pointer to the source data.
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* @param n
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* Number of bytes to copy.
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* @return
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* Pointer to the destination data.
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*/
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static void *
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rte_memcpy(void *dst, const void *src, size_t n);
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#endif /* __DOXYGEN__ */
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#endif /* _RTE_MEMCPY_H_ */
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