nengel@2: /*
nengel@2:  * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
nengel@2:  *
nengel@2:  * This file is part of FFmpeg.
nengel@2:  *
nengel@2:  * FFmpeg is free software; you can redistribute it and/or
nengel@2:  * modify it under the terms of the GNU Lesser General Public
nengel@2:  * License as published by the Free Software Foundation; either
nengel@2:  * version 2.1 of the License, or (at your option) any later version.
nengel@2:  *
nengel@2:  * FFmpeg is distributed in the hope that it will be useful,
nengel@2:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nengel@2:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
nengel@2:  * Lesser General Public License for more details.
nengel@2:  *
nengel@2:  * You should have received a copy of the GNU Lesser General Public
nengel@2:  * License along with FFmpeg; if not, write to the Free Software
nengel@2:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
nengel@2:  */
nengel@2: 
nengel@2: #ifndef AVUTIL_ARM_TIMER_H
nengel@2: #define AVUTIL_ARM_TIMER_H
nengel@2: 
nengel@2: #include <stdint.h>
nengel@2: #include "config.h"
nengel@2: 
nengel@2: #if HAVE_INLINE_ASM && defined(__ARM_ARCH_7A__)
nengel@2: 
nengel@2: #define AV_READ_TIME read_time
nengel@2: 
nengel@2: static inline uint64_t read_time(void)
nengel@2: {
nengel@2:     unsigned cc;
nengel@2:     __asm__ volatile ("mrc p15, 0, %0, c9, c13, 0" : "=r"(cc));
nengel@2:     return cc;
nengel@2: }
nengel@2: 
nengel@2: #endif /* HAVE_INLINE_ASM && __ARM_ARCH_7A__ */
nengel@2: 
nengel@2: #endif /* AVUTIL_ARM_TIMER_H */