Function report |
Source Code:kernel\time\timekeeping.c |
Create Date:2022-07-28 10:41:42 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:k_clock_read - atomic clocksource read() helper* This helper is necessary to use in the read paths because, while the* seqlock ensures we don't return a bad value while structures are updated,* it doesn't protect from potential crashes
Proto:static inline u64 tk_clock_read(const struct tk_read_base *tkr)
Type:u64
Parameter:
Type | Parameter | Name |
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const struct tk_read_base * | tkr |
Name | Describe |
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timekeeping_get_delta | |
tk_setup_internals | k_setup_internals - Set up internals to use clocksource clock |
__ktime_get_fast_ns | ktime_get_mono_fast_ns - Fast NMI safe access to clock monotonic* This timestamp is not guaranteed to be monotonic across an update |
__ktime_get_real_fast_ns | See comment for __ktime_get_fast_ns() vs. timestamp ordering |
halt_fast_timekeeper | halt_fast_timekeeper - Prevent fast timekeeper from accessing clocksource.*@tk: Timekeeper to snapshot.* It generally is unsafe to access the clocksource after timekeeping has been* suspended, so take a snapshot of the readout base of @tk and use it as the |
timekeeping_forward_now | mekeeping_forward_now - update clock to the current time* Forward the current clock to update its state since the last call to* update_wall_time(). This is useful before significant clock changes, |
ktime_get_snapshot | ktime_get_snapshot - snapshots the realtime/monotonic raw clocks with counter*@systime_snapshot: pointer to struct receiving the system time snapshot |
get_device_system_crosststamp | get_device_system_crosststamp - Synchronously capture system/device timestamp*@get_time_fn: Callback to get simultaneous device time and* system counter from the device driver*@ctx: Context passed to get_time_fn()*@history_begin: Historical reference |
timekeeping_resume | mekeeping_resume - Resumes the generic timekeeping subsystem. |
timekeeping_advance | mekeeping_advance - Updates the timekeeper to the current time and* current NTP tick length |
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