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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _RTE_MEMCPY_H_
#define _RTE_MEMCPY_H_
/**
* @file
*
* Functions for vectorised implementation of memcpy().
*/
/**
* Copy 16 bytes from one location to another using optimised
* instructions. The locations should not overlap.
*
* @param dst
* Pointer to the destination of the data.
* @param src
* Pointer to the source data.
*/
static inline void
rte_mov16(uint8_t *dst, const uint8_t *src);
/**
* Copy 32 bytes from one location to another using optimised
* instructions. The locations should not overlap.
*
* @param dst
* Pointer to the destination of the data.
* @param src
* Pointer to the source data.
*/
static inline void
rte_mov32(uint8_t *dst, const uint8_t *src);
/**
* Copy 48 bytes from one location to another using optimised
* instructions. The locations should not overlap.
*
* @param dst
* Pointer to the destination of the data.
* @param src
* Pointer to the source data.
*/
static inline void
rte_mov48(uint8_t *dst, const uint8_t *src);
/**
* Copy 64 bytes from one location to another using optimised
* instructions. The locations should not overlap.
*
* @param dst
* Pointer to the destination of the data.
* @param src
* Pointer to the source data.
*/
static inline void
rte_mov64(uint8_t *dst, const uint8_t *src);
/**
* Copy 128 bytes from one location to another using optimised
* instructions. The locations should not overlap.
*
* @param dst
* Pointer to the destination of the data.
* @param src
* Pointer to the source data.
*/
static inline void
rte_mov128(uint8_t *dst, const uint8_t *src);
/**
* Copy 256 bytes from one location to another using optimised
* instructions. The locations should not overlap.
*
* @param dst
* Pointer to the destination of the data.
* @param src
* Pointer to the source data.
*/
static inline void
rte_mov256(uint8_t *dst, const uint8_t *src);
#ifdef __DOXYGEN__
/**
* Copy bytes from one location to another. The locations must not overlap.
*
* @note This is implemented as a macro, so it's address should not be taken
* and care is needed as parameter expressions may be evaluated multiple times.
*
* @param dst
* Pointer to the destination of the data.
* @param src
* Pointer to the source data.
* @param n
* Number of bytes to copy.
* @return
* Pointer to the destination data.
*/
static void *
rte_memcpy(void *dst, const void *src, size_t n);
#endif /* __DOXYGEN__ */
/*
* memcpy() function used by rte_memcpy macro
*/
static inline void *
rte_memcpy_func(void *dst, const void *src, size_t n) __attribute__((always_inline));
#endif /* _RTE_MEMCPY_H_ */
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