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293cdbce75
AArch64 supports non-temporal (streaming) loads and writes. util_streaming_load_memcpy() is extended to support AArch64 non-temporal loads using inline assembly. The mesa_util_sse41 name is updated to mesa_util_simd to reflect support for non-x86 architectures. This makes copies from non-cacheable to cacheable memory about 20% faster on a Rock 5B. Signed-off-by: Loïc Molinari <loic.molinari@collabora.com> Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34606>
41 lines
1.6 KiB
C
41 lines
1.6 KiB
C
/*
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* Copyright © 2013 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Eric Anholt <eric@anholt.net>
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* Matt Turner <mattst88@gmail.com>
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*
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*/
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/* Copies memory from src to dst, using using non-temporal load instructions
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* to get streaming read performance from uncached memory.
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*/
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#ifndef STREAMING_LOAD_MEMCPY_H
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#define STREAMING_LOAD_MEMCPY_H
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#include <stdlib.h>
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void
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util_streaming_load_memcpy(void *restrict dst, void *restrict src, size_t len);
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#endif /* STREAMING_LOAD_MEMCPY_H */
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