00001 /* 00002 * Copyright (c) 2009 Mans Rullgard <mans@mansr.com> 00003 * 00004 * This file is part of FFmpeg. 00005 * 00006 * FFmpeg is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Lesser General Public 00008 * License as published by the Free Software Foundation; either 00009 * version 2.1 of the License, or (at your option) any later version. 00010 * 00011 * FFmpeg is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public 00017 * License along with FFmpeg; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00019 */ 00020 00021 #ifndef AVUTIL_ARM_TIMER_H 00022 #define AVUTIL_ARM_TIMER_H 00023 00024 #include <stdint.h> 00025 #include "config.h" 00026 00027 #if HAVE_INLINE_ASM && defined(__ARM_ARCH_7A__) 00028 00029 #define AV_READ_TIME read_time 00030 00031 static inline uint64_t read_time(void) 00032 { 00033 unsigned cc; 00034 __asm__ volatile ("mrc p15, 0, %0, c9, c13, 0" : "=r"(cc)); 00035 return cc; 00036 } 00037 00038 #endif /* HAVE_INLINE_ASM && __ARM_ARCH_7A__ */ 00039 00040 #endif /* AVUTIL_ARM_TIMER_H */
1.5.8