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ddk: v4.5.7

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git-svn-id: svn://kolibrios.org@6936 a494cfbc-eb01-0410-851d-a64ba20cac60
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Sergey Semyonov (Serge)
2017-07-28 19:22:53 +00:00
parent b7275f8e12
commit f75e5bc283
98 changed files with 5434 additions and 1526 deletions
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16
drivers/include/linux/clocksource.h
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@@ -62,12 +62,18 @@ struct module;
* @suspend: suspend function for the clocksource, if necessary
* @resume: resume function for the clocksource, if necessary
* @owner: module reference, must be set by clocksource in modules
*
* Note: This struct is not used in hotpathes of the timekeeping code
* because the timekeeper caches the hot path fields in its own data
* structure, so no line cache alignment is required,
*
* The pointer to the clocksource itself is handed to the read
* callback. If you need extra information there you can wrap struct
* clocksource into your own struct. Depending on the amount of
* information you need you should consider to cache line align that
* structure.
*/
struct clocksource {
/*
* Hotpath data, fits in a single cache line when the
* clocksource itself is cacheline aligned.
*/
cycle_t (*read)(struct clocksource *cs);
cycle_t mask;
u32 mult;
@@ -95,7 +101,7 @@ struct clocksource {
cycle_t wd_last;
#endif
struct module *owner;
} ____cacheline_aligned;
};
/*
* Clock source flags bits::