tests: Convert lavf pixfmt conversion tests to non-legacy test scripts
[libav.git] / libavutil / aarch64 / timer.h
CommitLineData
64034849
JG
1/*
2 * Copyright (c) 2015 Janne Grunau <janne-libav@jannau.net>
3 *
4 * This file is part of Libav.
5 *
6 * Libav is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * Libav is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#ifndef AVUTIL_AARCH64_TIMER_H
22#define AVUTIL_AARCH64_TIMER_H
23
24#include <stdint.h>
25#include "config.h"
26
27#if HAVE_INLINE_ASM
28
29#define AV_READ_TIME read_time
30
31static inline uint64_t read_time(void)
32{
33 uint64_t cycle_counter;
34 __asm__ volatile(
35 "isb \t\n"
36 "mrs %0, pmccntr_el0 "
37 : "=r"(cycle_counter) :: "memory" );
38
39 return cycle_counter;
40}
41
42#endif /* HAVE_INLINE_ASM */
43
44#endif /* AVUTIL_AARCH64_TIMER_H */