/* * Copyright (c) 2009 Mans Rullgard <mans@mansr.com> * * 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_ARM_TIMER_H#define AVUTIL_ARM_TIMER_H#include <stdint.h>#include "config.h"#if HAVE_INLINE_ASM && defined(__ARM_ARCH_7A__)#define AV_READ_TIME read_timestatic inline uint64_t read_time(void){ unsigned cc; __asm__ volatile ("mrc p15, 0, %0, c9, c13, 0" : "=r"(cc)); return cc;}#endif /* HAVE_INLINE_ASM && __ARM_ARCH_7A__ */#endif /* AVUTIL_ARM_TIMER_H */
/*
* Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
*
* 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_ARM_TIMER_H
#define AVUTIL_ARM_TIMER_H
#include <stdint.h>
#include "config.h"
#if HAVE_INLINE_ASM && defined(__ARM_ARCH_7A__)
#define AV_READ_TIME read_time
static inline uint64_t read_time(void)
{
unsigned cc;
__asm__ volatile ("mrc p15, 0, %0, c9, c13, 0" : "=r"(cc));
return cc;
}
#endif /* HAVE_INLINE_ASM && __ARM_ARCH_7A__ */
#endif /* AVUTIL_ARM_TIMER_H */