forked from luck/tmp_suning_uos_patched
a5a1d1c291
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>
36 lines
788 B
C
36 lines
788 B
C
#ifndef _TIMEKEEPING_INTERNAL_H
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#define _TIMEKEEPING_INTERNAL_H
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/*
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* timekeeping debug functions
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*/
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#include <linux/clocksource.h>
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#include <linux/time.h>
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#ifdef CONFIG_DEBUG_FS
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extern void tk_debug_account_sleep_time(struct timespec64 *t);
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#else
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#define tk_debug_account_sleep_time(x)
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#endif
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#ifdef CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE
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static inline u64 clocksource_delta(u64 now, u64 last, u64 mask)
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{
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u64 ret = (now - last) & mask;
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/*
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* Prevent time going backwards by checking the MSB of mask in
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* the result. If set, return 0.
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*/
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return ret & ~(mask >> 1) ? 0 : ret;
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}
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#else
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static inline u64 clocksource_delta(u64 now, u64 last, u64 mask)
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{
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return (now - last) & mask;
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}
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#endif
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extern time64_t __ktime_get_real_seconds(void);
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#endif /* _TIMEKEEPING_INTERNAL_H */
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