jolausa

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Feb 8th, 2018
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  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_X86_64_H_
  35. #define _RTE_MEMCPY_X86_64_H_
  36.  
  37. /**
  38. * @file
  39. *
  40. * Functions for SSE/AVX/AVX2/AVX512 implementation of memcpy().
  41. */
  42.  
  43. #include <stdio.h>
  44. #include <stdint.h>
  45. #include <string.h>
  46. #include <rte_vect.h>
  47. #include <rte_common.h>
  48.  
  49. #ifdef __cplusplus
  50. extern "C" {
  51. #endif
  52.  
  53. /**
  54. * Copy bytes from one location to another. The locations must not overlap.
  55. *
  56. * @note This is implemented as a macro, so it's address should not be taken
  57. * and care is needed as parameter expressions may be evaluated multiple times.
  58. *
  59. * @param dst
  60. * Pointer to the destination of the data.
  61. * @param src
  62. * Pointer to the source data.
  63. * @param n
  64. * Number of bytes to copy.
  65. * @return
  66. * Pointer to the destination data.
  67. */
  68. static __rte_always_inline void *
  69. rte_memcpy(void *dst, const void *src, size_t n);
  70.  
  71.  
  72. static inline void *
  73. rte_memcpy(void *dst, const void *src, size_t n)
  74. {
  75.  
  76. return rte_memcpy_generic(dst, src, n);
  77. }
  78.  
  79. #ifdef __cplusplus
  80. }
  81. #endif
  82.  
  83. #endif /* _RTE_MEMCPY_X86_64_H_ */
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