/* * include/asm-ppc/timex.h * * ppc architecture timex specifications */ #ifdef __KERNEL__ #ifndef _ASMppc_TIMEX_H #define _ASMppc_TIMEX_H #include #include #define CLOCK_TICK_RATE 1193180 /* Underlying HZ */ typedef unsigned long cycles_t; /* * For the "cycle" counter we use the timebase lower half. * Currently only used on SMP. */ static inline cycles_t get_cycles(void) { cycles_t ret = 0; __asm__ __volatile__( "98: mftb %0\n" "99:\n" ".section __ftr_fixup,\"a\"\n" " .long %1\n" " .long 0\n" " .long 98b\n" " .long 99b\n" ".previous" : "=r" (ret) : "i" (CPU_FTR_601)); return ret; } #endif #endif /* __KERNEL__ */