2 * asm-blackfin/timex.h: cpu cycles!
4 * Copyright 2004-2008 Analog Devices Inc.
6 * Licensed under the GPL-2 or later.
9 #ifndef _ASM_BLACKFIN_TIMEX_H
10 #define _ASM_BLACKFIN_TIMEX_H
12 #define CLOCK_TICK_RATE 1000000 /* Underlying HZ */
14 typedef unsigned long long cycles_t;
16 static inline cycles_t get_cycles(void)
18 unsigned long tmp, tmp2;
19 __asm__ __volatile__("%0 = cycles; %1 = cycles2;" : "=d"(tmp), "=d"(tmp2));
20 return tmp | ((cycles_t)tmp2 << 32);