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Code Issues Releases Activity

ARM: START/STOP_TIMER support for ARMv7

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Originally committed as revision 18305 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2009-04-01 22:56:26 +00:00
parent 439ccc4e0e
commit 60c703ac4b
2 changed files with 42 additions and 1 deletions
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39
libavutil/arm/timer.h Normal file
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@ -0,0 +1,39 @@
/*
* 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>
#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 */

4
libavutil/timer.h
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@ -28,7 +28,9 @@
#include <stdint.h>
#include "config.h"
#if ARCH_BFIN
#if ARCH_ARM
# include "arm/timer.h"
#elif ARCH_BFIN
# include "bfin/timer.h"
#elif ARCH_PPC
# include "ppc/timer.h"