mirror of https://git.ffmpeg.org/ffmpeg.git
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
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/*
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* Copyright (c) 2023 Loongson Technology Corporation Limited
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* Contributed by Hecai Yuan <yuanhecai@loongson.cn>
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*
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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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#ifndef AVUTIL_LOONGARCH_TIMER_H
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#define AVUTIL_LOONGARCH_TIMER_H
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#include <stdint.h>
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#include "config.h"
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#if HAVE_INLINE_ASM
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#define AV_READ_TIME read_time
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static inline uint64_t read_time(void)
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{
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#if ARCH_LOONGARCH64
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uint64_t a, id;
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__asm__ volatile ( "rdtime.d %0, %1" : "=r"(a), "=r"(id) :: );
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return a;
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#else
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uint32_t a, id;
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__asm__ volatile ( "rdtimel.w %0, %1" : "=r"(a), "=r"(id) :: );
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return (uint64_t)a;
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#endif
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}
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#endif /* HAVE_INLINE_ASM */
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#endif /* AVUTIL_LOONGARCH_TIMER_H */
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