mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 09:19:51 +00:00
![Thomas Gleixner](/assets/img/avatar_default.png)
There is no point in having an extra type for extra confusion. u64 is unambiguous. Conversion was done with the following coccinelle script: @rem@ @@ -typedef u64 cycle_t; @fix@ typedef cycle_t; @@ -cycle_t +u64 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: John Stultz <john.stultz@linaro.org>
35 lines
788 B
C
35 lines
788 B
C
#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 u64 clocksource_delta(u64 now, u64 last, u64 mask)
|
|
{
|
|
u64 ret = (now - last) & mask;
|
|
|
|
/*
|
|
* Prevent time going backwards by checking the MSB of mask in
|
|
* the result. If set, return 0.
|
|
*/
|
|
return ret & ~(mask >> 1) ? 0 : ret;
|
|
}
|
|
#else
|
|
static inline u64 clocksource_delta(u64 now, u64 last, u64 mask)
|
|
{
|
|
return (now - last) & mask;
|
|
}
|
|
#endif
|
|
|
|
extern time64_t __ktime_get_real_seconds(void);
|
|
|
|
#endif /* _TIMEKEEPING_INTERNAL_H */
|