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| author | yuanhecai <yuanhecai@loongson.cn> | 2023-05-25 15:24:32 +0800 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-05-25 21:05:21 +0200 |
| commit | 82278e874989b36f8f7f6b56651c12872bb40771 (patch) | |
| tree | 882bff29132720da4ce972d994e47f6763f617d8 /libavutil/loongarch | |
| parent | cb4ae8baeefe35d01695a18f3b7671008cf13afc (diff) | |
| download | ffmpeg-82278e874989b36f8f7f6b56651c12872bb40771.tar.gz | |
avutil/la: Add function performance testing
This patch supports the use of the "checkasm --bench" testing feature
on loongarch platform.
Change-Id: I42790388d057c9ade0dfa38a19d9c1fd44ca0bc3
Reviewed-by: Shiyou Yin <yinshiyou-hf@loongson.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavutil/loongarch')
| -rw-r--r-- | libavutil/loongarch/timer.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/libavutil/loongarch/timer.h b/libavutil/loongarch/timer.h new file mode 100644 index 0000000000..2f998aaba0 --- /dev/null +++ b/libavutil/loongarch/timer.h @@ -0,0 +1,48 @@ +/* + * 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 */ |