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190106e884
* commit 'd3789eeeed3423bd1ca9dc40030a2f7a21ea5332': aarch64: implement videodsp.prefetch Merged-by: Michael Niedermayer <michaelni@gmx.at>
29 lines
1.0 KiB
ArmAsm
29 lines
1.0 KiB
ArmAsm
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/aarch64/asm.S"
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function ff_prefetch_aarch64, export=1
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subs w2, w2, #2
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prfm pldl1strm, [x0]
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prfm pldl1strm, [x0, x1]
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add x0, x0, x1, lsl #1
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b.gt X(ff_prefetch_aarch64)
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ret
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endfunc
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