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| author | Tony Lindgren <tony@atomide.com> | 2021-07-27 11:25:08 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2021-07-27 11:25:08 +0300 |
| commit | 353b7a55dcaf5fb8758e09ebe2ddf5f3adbac7c5 (patch) | |
| tree | 081200957b3d8925cbe913020d45a4e3ba61a7a3 /include/linux/clocksource.h | |
| parent | 3ff340e24c9dd5cff9fc07d67914c5adf67f80d6 (diff) | |
| parent | c68ef4ad180e09805fa46965d15e1dfadf09ffa5 (diff) | |
Merge branch 'fixes-v5.14' into fixes
Diffstat (limited to 'include/linux/clocksource.h')
| -rw-r--r-- | include/linux/clocksource.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index d6ab416ee2d2..1d42d4b17327 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -43,6 +43,8 @@ struct module; * @shift: Cycle to nanosecond divisor (power of two) * @max_idle_ns: Maximum idle time permitted by the clocksource (nsecs) * @maxadj: Maximum adjustment value to mult (~11%) + * @uncertainty_margin: Maximum uncertainty in nanoseconds per half second. + * Zero says to use default WATCHDOG_THRESHOLD. * @archdata: Optional arch-specific data * @max_cycles: Maximum safe cycle value which won't overflow on * multiplication @@ -98,6 +100,7 @@ struct clocksource { u32 shift; u64 max_idle_ns; u32 maxadj; + u32 uncertainty_margin; #ifdef CONFIG_ARCH_CLOCKSOURCE_DATA struct arch_clocksource_data archdata; #endif @@ -137,7 +140,7 @@ struct clocksource { #define CLOCK_SOURCE_UNSTABLE 0x40 #define CLOCK_SOURCE_SUSPEND_NONSTOP 0x80 #define CLOCK_SOURCE_RESELECT 0x100 - +#define CLOCK_SOURCE_VERIFY_PERCPU 0x200 /* simplify initialization of mask field */ #define CLOCKSOURCE_MASK(bits) GENMASK_ULL((bits) - 1, 0) @@ -288,4 +291,7 @@ static inline void timer_probe(void) {} #define TIMER_ACPI_DECLARE(name, table_id, fn) \ ACPI_DECLARE_PROBE_ENTRY(timer, name, table_id, 0, NULL, 0, fn) +extern ulong max_cswd_read_retries; +void clocksource_verify_percpu(struct clocksource *cs); + #endif /* _LINUX_CLOCKSOURCE_H */ |