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libavutil/loongarch/timer.h
48 строк
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yuanhecai
avutil/la: Add function performance testing
25 май 2023, 22:05
Не верифицирован
25 май 2023, 22:05
82278e8
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/* * Copyright (c) 2023 Loongson Technology Corporation Limited * Contributed by Hecai Yuan <yuanhecai@loongson.cn> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef AVUTIL_LOONGARCH_TIMER_H #define AVUTIL_LOONGARCH_TIMER_H #include <stdint.h> #include "config.h" #if HAVE_INLINE_ASM #define AV_READ_TIME read_time static inline uint64_t read_time(void) { #if ARCH_LOONGARCH64 uint64_t a, id; __asm__ volatile ( "rdtime.d %0, %1" : "=r"(a), "=r"(id) :: ); return a; #else uint32_t a, id; __asm__ volatile ( "rdtimel.w %0, %1" : "=r"(a), "=r"(id) :: ); return (uint64_t)a; #endif } #endif /* HAVE_INLINE_ASM */ #endif /* AVUTIL_LOONGARCH_TIMER_H */