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Diffstat (limited to 'vppinfra/vppinfra/memcpy_avx.h')
| -rw-r--r-- | vppinfra/vppinfra/memcpy_avx.h | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/vppinfra/vppinfra/memcpy_avx.h b/vppinfra/vppinfra/memcpy_avx.h deleted file mode 100644 index e3feb76b6b7..00000000000 --- a/vppinfra/vppinfra/memcpy_avx.h +++ /dev/null @@ -1,293 +0,0 @@ -/* - * Copyright (c) 2016 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/*- - * 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 included_clib_memcpy_avx_h -#define included_clib_memcpy_avx_h - -#include <stdint.h> -#include <x86intrin.h> - -typedef u8 u8x16u __attribute__ ((vector_size (16), aligned (1))); -typedef u8 u8x32u __attribute__ ((vector_size (32), aligned (1))); - -static inline void -clib_mov16 (u8 * dst, const u8 * src) -{ - *(u8x16u *) dst = *(u8x16u *) src; -} - -static inline void -clib_mov32 (u8 * dst, const u8 * src) -{ - *(u8x32u *) dst = *(u8x32u *) src; -} - -static inline void -clib_mov64 (u8 * dst, const u8 * src) -{ - clib_mov32 ((u8 *) dst + 0 * 32, (const u8 *) src + 0 * 32); - clib_mov32 ((u8 *) dst + 1 * 32, (const u8 *) src + 1 * 32); -} - -static inline void -clib_mov128 (u8 * dst, const u8 * src) -{ - clib_mov64 ((u8 *) dst + 0 * 64, (const u8 *) src + 0 * 64); - clib_mov64 ((u8 *) dst + 1 * 64, (const u8 *) src + 1 * 64); -} - -static inline void -clib_mov256 (u8 * dst, const u8 * src) -{ - clib_mov128 ((u8 *) dst + 0 * 128, (const u8 *) src + 0 * 128); - clib_mov128 ((u8 *) dst + 1 * 128, (const u8 *) src + 1 * 128); -} - -static inline void -clib_mov64blocks (u8 * dst, const u8 * src, size_t n) -{ - __m256i ymm0, ymm1; - - while (n >= 64) - { - ymm0 = - _mm256_loadu_si256 ((const __m256i *) ((const u8 *) src + 0 * 32)); - n -= 64; - ymm1 = - _mm256_loadu_si256 ((const __m256i *) ((const u8 *) src + 1 * 32)); - src = (const u8 *) src + 64; - _mm256_storeu_si256 ((__m256i *) ((u8 *) dst + 0 * 32), ymm0); - _mm256_storeu_si256 ((__m256i *) ((u8 *) dst + 1 * 32), ymm1); - dst = (u8 *) dst + 64; - } -} - -static inline void -clib_mov256blocks (u8 * dst, const u8 * src, size_t n) -{ - __m256i ymm0, ymm1, ymm2, ymm3, ymm4, ymm5, ymm6, ymm7; - - while (n >= 256) - { - ymm0 = - _mm256_loadu_si256 ((const __m256i *) ((const u8 *) src + 0 * 32)); - n -= 256; - ymm1 = - _mm256_loadu_si256 ((const __m256i *) ((const u8 *) src + 1 * 32)); - ymm2 = - _mm256_loadu_si256 ((const __m256i *) ((const u8 *) src + 2 * 32)); - ymm3 = - _mm256_loadu_si256 ((const __m256i *) ((const u8 *) src + 3 * 32)); - ymm4 = - _mm256_loadu_si256 ((const __m256i *) ((const u8 *) src + 4 * 32)); - ymm5 = - _mm256_loadu_si256 ((const __m256i *) ((const u8 *) src + 5 * 32)); - ymm6 = - _mm256_loadu_si256 ((const __m256i *) ((const u8 *) src + 6 * 32)); - ymm7 = - _mm256_loadu_si256 ((const __m256i *) ((const u8 *) src + 7 * 32)); - src = (const u8 *) src + 256; - _mm256_storeu_si256 ((__m256i *) ((u8 *) dst + 0 * 32), ymm0); - _mm256_storeu_si256 ((__m256i *) ((u8 *) dst + 1 * 32), ymm1); - _mm256_storeu_si256 ((__m256i *) ((u8 *) dst + 2 * 32), ymm2); - _mm256_storeu_si256 ((__m256i *) ((u8 *) dst + 3 * 32), ymm3); - _mm256_storeu_si256 ((__m256i *) ((u8 *) dst + 4 * 32), ymm4); - _mm256_storeu_si256 ((__m256i *) ((u8 *) dst + 5 * 32), ymm5); - _mm256_storeu_si256 ((__m256i *) ((u8 *) dst + 6 * 32), ymm6); - _mm256_storeu_si256 ((__m256i *) ((u8 *) dst + 7 * 32), ymm7); - dst = (u8 *) dst + 256; - } -} - -static inline void * -clib_memcpy (void *dst, const void *src, size_t n) -{ - uword dstu = (uword) dst; - uword srcu = (uword) src; - void *ret = dst; - size_t dstofss; - size_t bits; - - /** - * Copy less than 16 bytes - */ - if (n < 16) - { - if (n & 0x01) - { - *(u8 *) dstu = *(const u8 *) srcu; - srcu = (uword) ((const u8 *) srcu + 1); - dstu = (uword) ((u8 *) dstu + 1); - } - if (n & 0x02) - { - *(uint16_t *) dstu = *(const uint16_t *) srcu; - srcu = (uword) ((const uint16_t *) srcu + 1); - dstu = (uword) ((uint16_t *) dstu + 1); - } - if (n & 0x04) - { - *(uint32_t *) dstu = *(const uint32_t *) srcu; - srcu = (uword) ((const uint32_t *) srcu + 1); - dstu = (uword) ((uint32_t *) dstu + 1); - } - if (n & 0x08) - { - *(uint64_t *) dstu = *(const uint64_t *) srcu; - } - return ret; - } - - /** - * Fast way when copy size doesn't exceed 512 bytes - */ - if (n <= 32) - { - clib_mov16 ((u8 *) dst, (const u8 *) src); - clib_mov16 ((u8 *) dst - 16 + n, (const u8 *) src - 16 + n); - return ret; - } - if (n <= 64) - { - clib_mov32 ((u8 *) dst, (const u8 *) src); - clib_mov32 ((u8 *) dst - 32 + n, (const u8 *) src - 32 + n); - return ret; - } - if (n <= 512) - { - if (n >= 256) - { - n -= 256; - clib_mov256 ((u8 *) dst, (const u8 *) src); - src = (const u8 *) src + 256; - dst = (u8 *) dst + 256; - } - if (n >= 128) - { - n -= 128; - clib_mov128 ((u8 *) dst, (const u8 *) src); - src = (const u8 *) src + 128; - dst = (u8 *) dst + 128; - } - if (n >= 64) - { - n -= 64; - clib_mov64 ((u8 *) dst, (const u8 *) src); - src = (const u8 *) src + 64; - dst = (u8 *) dst + 64; - } - COPY_BLOCK_64_BACK31: - if (n > 32) - { - clib_mov32 ((u8 *) dst, (const u8 *) src); - clib_mov32 ((u8 *) dst - 32 + n, (const u8 *) src - 32 + n); - return ret; - } - if (n > 0) - { - clib_mov32 ((u8 *) dst - 32 + n, (const u8 *) src - 32 + n); - } - return ret; - } - - /** - * Make store aligned when copy size exceeds 512 bytes - */ - dstofss = (uword) dst & 0x1F; - if (dstofss > 0) - { - dstofss = 32 - dstofss; - n -= dstofss; - clib_mov32 ((u8 *) dst, (const u8 *) src); - src = (const u8 *) src + dstofss; - dst = (u8 *) dst + dstofss; - } - - /** - * Copy 256-byte blocks. - * Use copy block function for better instruction order control, - * which is important when load is unaligned. - */ - clib_mov256blocks ((u8 *) dst, (const u8 *) src, n); - bits = n; - n = n & 255; - bits -= n; - src = (const u8 *) src + bits; - dst = (u8 *) dst + bits; - - /** - * Copy 64-byte blocks. - * Use copy block function for better instruction order control, - * which is important when load is unaligned. - */ - if (n >= 64) - { - clib_mov64blocks ((u8 *) dst, (const u8 *) src, n); - bits = n; - n = n & 63; - bits -= n; - src = (const u8 *) src + bits; - dst = (u8 *) dst + bits; - } - - /** - * Copy whatever left - */ - goto COPY_BLOCK_64_BACK31; -} - - -#endif /* included_clib_mamcpy_avx_h */ - - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |