diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2007-02-16 01:27:36 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-16 08:13:57 -0800 |
| commit | 73b08d2aa4245806ef1bdd48463e9a0b045c62cf (patch) | |
| tree | 1cd5b3a7b9f889bb6ff1e7fc6c9a95751faad4d7 /include/linux/clocksource.h | |
| parent | 95492e4646e5de8b43d9a7908d6177fb737b61f0 (diff) | |
| download | lwn-73b08d2aa4245806ef1bdd48463e9a0b045c62cf.tar.gz lwn-73b08d2aa4245806ef1bdd48463e9a0b045c62cf.zip | |
[PATCH] clocksource: replace is_continuous by a flag field
Using a flag filed allows to encode more than one information into a variable.
Preparatory patch for the generic clocksource verification.
[mingo@elte.hu: convert vmitime.c to the new clocksource flag]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/clocksource.h')
| -rw-r--r-- | include/linux/clocksource.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index 55d714052374..45b0c310ae82 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -45,7 +45,7 @@ typedef u64 cycle_t; * @mult: cycle to nanosecond multiplier * @shift: cycle to nanosecond divisor (power of two) * @update_callback: called when safe to alter clocksource values - * @is_continuous: defines if clocksource is free-running. + * @flags: flags describing special properties * @cycle_interval: Used internally by timekeeping core, please ignore. * @xtime_interval: Used internally by timekeeping core, please ignore. */ @@ -58,7 +58,7 @@ struct clocksource { u32 mult; u32 shift; int (*update_callback)(void); - int is_continuous; + unsigned long flags; /* timekeeping specific data, ignore */ cycle_t cycle_last, cycle_interval; @@ -66,6 +66,12 @@ struct clocksource { s64 error; }; +/* + * Clock source flags bits:: + */ +#define CLOCK_SOURCE_IS_CONTINUOUS 0x01 +#define CLOCK_SOURCE_MUST_VERIFY 0x02 + /* simplify initialization of mask field */ #define CLOCKSOURCE_MASK(bits) (cycle_t)(bits<64 ? ((1ULL<<bits)-1) : -1) |