| #ifndef _TIMEKEEPING_INTERNAL_H |
| #define _TIMEKEEPING_INTERNAL_H |
| /* |
| * timekeeping debug functions |
| */ |
| #include <linux/clocksource.h> |
| #include <linux/time.h> |
| |
| #ifdef CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE |
| static inline cycle_t clocksource_delta(cycle_t now, cycle_t last, cycle_t mask) |
| { |
| cycle_t ret = (now - last) & mask; |
| |
| return (s64) ret > 0 ? ret : 0; |
| } |
| #else |
| static inline cycle_t clocksource_delta(cycle_t now, cycle_t last, cycle_t mask) |
| { |
| return (now - last) & mask; |
| } |
| #endif |
| |
| #endif /* _TIMEKEEPING_INTERNAL_H */ |
