1#ifndef _TIMEKEEPING_INTERNAL_H 2#define _TIMEKEEPING_INTERNAL_H 3/* 4 * timekeeping debug functions 5 */ 6#include <linux/clocksource.h> 7#include <linux/time.h> 8 9#ifdef CONFIG_DEBUG_FS 10extern void tk_debug_account_sleep_time(struct timespec64 *t); 11#else 12#define tk_debug_account_sleep_time(x) 13#endif 14 15#ifdef CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE 16static inline cycle_t clocksource_delta(cycle_t now, cycle_t last, cycle_t mask) 17{ 18 cycle_t ret = (now - last) & mask; 19 20 return (s64) ret > 0 ? ret : 0; 21} 22#else 23static inline cycle_t clocksource_delta(cycle_t now, cycle_t last, cycle_t mask) 24{ 25 return (now - last) & mask; 26} 27#endif 28 29#endif /* _TIMEKEEPING_INTERNAL_H */ 30