vppinfra: new memcpy for x86_64

Change-Id: I5a5055580479960ac53e3f989aa188faf57fb05d
Type: improvement
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 0 insertions, 249 deletions

diff --git a/src/vppinfra/memcpy_avx2.h b/src/vppinfra/memcpy_avx2.h
deleted file mode 100644
index ac29d2590a7..00000000000
--- a/src/vppinfra/memcpy_avx2.h
+++ /dev/null
@@ -1,249 +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_avx2_h
-#define included_clib_memcpy_avx2_h
-
-#include <stdint.h>
-#include <x86intrin.h>
-#include <vppinfra/warnings.h>
-
-/* *INDENT-OFF* */
-WARN_OFF (stringop-overflow)
-/* *INDENT-ON* */
-
-static inline void
-clib_mov16 (u8 * dst, const u8 * src)
-{
-  __m128i xmm0;
-
-  xmm0 = _mm_loadu_si128 ((const __m128i *) src);
-  _mm_storeu_si128 ((__m128i *) dst, xmm0);
-}
-
-static inline void
-clib_mov32 (u8 * dst, const u8 * src)
-{
-  __m256i ymm0;
-
-  ymm0 = _mm256_loadu_si256 ((const __m256i *) src);
-  _mm256_storeu_si256 ((__m256i *) dst, ymm0);
-}
-
-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_mov128blocks (u8 * dst, const u8 * src, size_t n)
-{
-  __m256i ymm0, ymm1, ymm2, ymm3;
-
-  while (n >= 128)
-    {
-      ymm0 =
-	_mm256_loadu_si256 ((const __m256i *) ((const u8 *) src + 0 * 32));
-      n -= 128;
-      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));
-      src = (const u8 *) src + 128;
-      _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);
-      dst = (u8 *) dst + 128;
-    }
-}
-
-static inline void *
-clib_memcpy_fast_avx2 (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)
-	{
-	  *(u16u *) dstu = *(const u16u *) srcu;
-	  srcu = (uword) ((const u16u *) srcu + 1);
-	  dstu = (uword) ((u16u *) dstu + 1);
-	}
-      if (n & 0x04)
-	{
-	  *(u32u *) dstu = *(const u32u *) srcu;
-	  srcu = (uword) ((const u32u *) srcu + 1);
-	  dstu = (uword) ((u32u *) dstu + 1);
-	}
-      if (n & 0x08)
-	{
-	  *(u64u *) dstu = *(const u64u *) 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 <= 48)
-    {
-      clib_mov16 ((u8 *) dst, (const u8 *) src);
-      clib_mov16 ((u8 *) dst + 16, (const u8 *) src + 16);
-      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 <= 256)
-    {
-      if (n >= 128)
-	{
-	  n -= 128;
-	  clib_mov128 ((u8 *) dst, (const u8 *) src);
-	  src = (const u8 *) src + 128;
-	  dst = (u8 *) dst + 128;
-	}
-    COPY_BLOCK_128_BACK31:
-      if (n >= 64)
-	{
-	  n -= 64;
-	  clib_mov64 ((u8 *) dst, (const u8 *) src);
-	  src = (const u8 *) src + 64;
-	  dst = (u8 *) dst + 64;
-	}
-      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 256 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 128-byte blocks.
-    */
-  clib_mov128blocks ((u8 *) dst, (const u8 *) src, n);
-  bits = n;
-  n = n & 127;
-  bits -= n;
-  src = (const u8 *) src + bits;
-  dst = (u8 *) dst + bits;
-
-  /**
-   * Copy whatever left
-   */
-  goto COPY_BLOCK_128_BACK31;
-}
-
-/* *INDENT-OFF* */
-WARN_ON (stringop-overflow)
-/* *INDENT-ON* */
-
-#endif /* included_clib_memcpy_avx2_h */
-
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */