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time: Expose getrawmonotonic64 for in-kernel uses 

Adds a timespec64 based getrawmonotonic64() implementation
that can be used as we convert internal users of
getrawmonotonic away from using timespecs.

Signed-off-by: John Stultz <john.stultz@linaro.org>
hifive-unleashed-5.1
John Stultz 2014-11-07 11:03:20 -08:00
parent 90b6ce9c40
commit cdba2ec538
2 changed files with 20 additions and 6 deletions
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15
include/linux/timekeeping.h
View File

@ -26,7 +26,7 @@ struct timespec __current_kernel_time(void);
* timespec based interfaces
*/
struct timespec get_monotonic_coarse(void);
extern void getrawmonotonic(struct timespec *ts);
extern void getrawmonotonic64(struct timespec64 *ts);
extern void ktime_get_ts64(struct timespec64 *ts);
extern int __getnstimeofday64(struct timespec64 *tv);
@ -61,6 +61,11 @@ static inline void ktime_get_real_ts(struct timespec *ts)
getnstimeofday64(ts);
}
static inline void getrawmonotonic(struct timespec *ts)
{
getrawmonotonic64(ts);
}
#else
/**
* Deprecated. Use do_settimeofday64().
@ -105,6 +110,14 @@ static inline void ktime_get_real_ts(struct timespec *ts)
getnstimeofday64(&ts64);
*ts = timespec64_to_timespec(ts64);
}
static inline void getrawmonotonic(struct timespec *ts)
{
struct timespec64 ts64;
getrawmonotonic64(&ts64);
*ts = timespec64_to_timespec(ts64);
}
#endif
extern void getboottime(struct timespec *ts);

11
kernel/time/timekeeping.c
View File

@ -894,12 +894,12 @@ int timekeeping_notify(struct clocksource *clock)
}
/**
* getrawmonotonic - Returns the raw monotonic time in a timespec
* @ts: pointer to the timespec to be set
* getrawmonotonic64 - Returns the raw monotonic time in a timespec
* @ts: pointer to the timespec64 to be set
*
* Returns the raw monotonic time (completely un-modified by ntp)
*/
void getrawmonotonic(struct timespec *ts)
void getrawmonotonic64(struct timespec64 *ts)
{
struct timekeeper *tk = &tk_core.timekeeper;
struct timespec64 ts64;
@ -914,9 +914,10 @@ void getrawmonotonic(struct timespec *ts)
} while (read_seqcount_retry(&tk_core.seq, seq));
timespec64_add_ns(&ts64, nsecs);
*ts = timespec64_to_timespec(ts64);
*ts = ts64;
}
EXPORT_SYMBOL(getrawmonotonic);
EXPORT_SYMBOL(getrawmonotonic64);
/**
* timekeeping_valid_for_hres - Check if timekeeping is suitable for hres