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authorThomas Gleixner <tglx@linutronix.de>2007-02-16 01:27:36 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-16 08:13:57 -0800
commit73b08d2aa4245806ef1bdd48463e9a0b045c62cf (patch)
tree1cd5b3a7b9f889bb6ff1e7fc6c9a95751faad4d7 /include/linux/clocksource.h
parent95492e4646e5de8b43d9a7908d6177fb737b61f0 (diff)
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[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.h10
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)