diff options
author | Michael J. Chudobiak <mjc@avtechpulse.com> | 2016-04-25 10:00:44 -0400 |
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committer | Michael J. Chudobiak <mjc@avtechpulse.com> | 2016-04-25 10:00:44 -0400 |
commit | a1df417e74aa6dae7352dc8cbb0ad471af5b7c69 (patch) | |
tree | c34b2311e37ea31db153c90cb8f4570374d05e78 /linux/kernel/time/timekeeping_internal.h |
initial Olimex linux tree from Daniel, originally Feb 3, 2016
Diffstat (limited to 'linux/kernel/time/timekeeping_internal.h')
-rw-r--r-- | linux/kernel/time/timekeeping_internal.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/linux/kernel/time/timekeeping_internal.h b/linux/kernel/time/timekeeping_internal.h new file mode 100644 index 00000000..4ea005a7 --- /dev/null +++ b/linux/kernel/time/timekeeping_internal.h @@ -0,0 +1,29 @@ +#ifndef _TIMEKEEPING_INTERNAL_H +#define _TIMEKEEPING_INTERNAL_H +/* + * timekeeping debug functions + */ +#include <linux/clocksource.h> +#include <linux/time.h> + +#ifdef CONFIG_DEBUG_FS +extern void tk_debug_account_sleep_time(struct timespec64 *t); +#else +#define tk_debug_account_sleep_time(x) +#endif + +#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 */ |