projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | /*- |
| 2 | * BSD LICENSE | |
| 3 | * | |
| 4 | * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. | |
| 5 | * All rights reserved. | |
| 6 | * | |
| 7 | * Redistribution and use in source and binary forms, with or without | |
| 8 | * modification, are permitted provided that the following conditions | |
| 9 | * are met: | |
| 10 | * | |
| 11 | * * Redistributions of source code must retain the above copyright | |
| 12 | * notice, this list of conditions and the following disclaimer. | |
| 13 | * * Redistributions in binary form must reproduce the above copyright | |
| 14 | * notice, this list of conditions and the following disclaimer in | |
| 15 | * the documentation and/or other materials provided with the | |
| 16 | * distribution. | |
| 17 | * * Neither the name of Intel Corporation nor the names of its | |
| 18 | * contributors may be used to endorse or promote products derived | |
| 19 | * from this software without specific prior written permission. | |
| 20 | * | |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 22 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 24 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 25 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 26 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 27 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 28 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 29 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 32 | */ | |
| 33 | ||
| 34 | #ifndef _RTE_MEMCPY_H_ | |
| 35 | #define _RTE_MEMCPY_H_ | |
| 36 | ||
| 37 | /** | |
| 38 | * @file | |
| 39 | * | |
| 40 | * Functions for vectorised implementation of memcpy(). | |
| 41 | */ | |
| 42 | ||
| 43 | /** | |
| 44 | * Copy 16 bytes from one location to another using optimised | |
| 45 | * instructions. The locations should not overlap. | |
| 46 | * | |
| 47 | * @param dst | |
| 48 | * Pointer to the destination of the data. | |
| 49 | * @param src | |
| 50 | * Pointer to the source data. | |
| 51 | */ | |
| 52 | static inline void | |
| 53 | rte_mov16(uint8_t *dst, const uint8_t *src); | |
| 54 | ||
| 55 | /** | |
| 56 | * Copy 32 bytes from one location to another using optimised | |
| 57 | * instructions. The locations should not overlap. | |
| 58 | * | |
| 59 | * @param dst | |
| 60 | * Pointer to the destination of the data. | |
| 61 | * @param src | |
| 62 | * Pointer to the source data. | |
| 63 | */ | |
| 64 | static inline void | |
| 65 | rte_mov32(uint8_t *dst, const uint8_t *src); | |
| 66 | ||
| 67 | #ifdef __DOXYGEN__ | |
| 68 | ||
| 69 | /** | |
| 70 | * Copy 48 bytes from one location to another using optimised | |
| 71 | * instructions. The locations should not overlap. | |
| 72 | * | |
| 73 | * @param dst | |
| 74 | * Pointer to the destination of the data. | |
| 75 | * @param src | |
| 76 | * Pointer to the source data. | |
| 77 | */ | |
| 78 | static inline void | |
| 79 | rte_mov48(uint8_t *dst, const uint8_t *src); | |
| 80 | ||
| 81 | #endif /* __DOXYGEN__ */ | |
| 82 | ||
| 83 | /** | |
| 84 | * Copy 64 bytes from one location to another using optimised | |
| 85 | * instructions. The locations should not overlap. | |
| 86 | * | |
| 87 | * @param dst | |
| 88 | * Pointer to the destination of the data. | |
| 89 | * @param src | |
| 90 | * Pointer to the source data. | |
| 91 | */ | |
| 92 | static inline void | |
| 93 | rte_mov64(uint8_t *dst, const uint8_t *src); | |
| 94 | ||
| 95 | /** | |
| 96 | * Copy 128 bytes from one location to another using optimised | |
| 97 | * instructions. The locations should not overlap. | |
| 98 | * | |
| 99 | * @param dst | |
| 100 | * Pointer to the destination of the data. | |
| 101 | * @param src | |
| 102 | * Pointer to the source data. | |
| 103 | */ | |
| 104 | static inline void | |
| 105 | rte_mov128(uint8_t *dst, const uint8_t *src); | |
| 106 | ||
| 107 | /** | |
| 108 | * Copy 256 bytes from one location to another using optimised | |
| 109 | * instructions. The locations should not overlap. | |
| 110 | * | |
| 111 | * @param dst | |
| 112 | * Pointer to the destination of the data. | |
| 113 | * @param src | |
| 114 | * Pointer to the source data. | |
| 115 | */ | |
| 116 | static inline void | |
| 117 | rte_mov256(uint8_t *dst, const uint8_t *src); | |
| 118 | ||
| 119 | #ifdef __DOXYGEN__ | |
| 120 | ||
| 121 | /** | |
| 122 | * Copy bytes from one location to another. The locations must not overlap. | |
| 123 | * | |
| 124 | * @note This is implemented as a macro, so it's address should not be taken | |
| 125 | * and care is needed as parameter expressions may be evaluated multiple times. | |
| 126 | * | |
| 127 | * @param dst | |
| 128 | * Pointer to the destination of the data. | |
| 129 | * @param src | |
| 130 | * Pointer to the source data. | |
| 131 | * @param n | |
| 132 | * Number of bytes to copy. | |
| 133 | * @return | |
| 134 | * Pointer to the destination data. | |
| 135 | */ | |
| 136 | static void * | |
| 137 | rte_memcpy(void *dst, const void *src, size_t n); | |
| 138 | ||
| 139 | #endif /* __DOXYGEN__ */ | |
| 140 | ||
| 141 | #endif /* _RTE_MEMCPY_H_ */ |