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| author | Mark Rutland <mark.rutland@arm.com> | 2013-01-14 17:05:21 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2013-01-31 22:15:35 +0100 |
| commit | 12572dbb53638c6e454ef831c8fee7de3df24389 (patch) | |
| tree | dac15b3d75adb3a33f3868b70a6dcf0b63c55b91 /include/linux/clockchips.h | |
| parent | 04c2eee5b9dfcb13f3cd07a5537fb8c785f2751a (diff) | |
| download | lwn-12572dbb53638c6e454ef831c8fee7de3df24389.tar.gz lwn-12572dbb53638c6e454ef831c8fee7de3df24389.zip | |
clockevents: Add generic timer broadcast receiver
Currently the broadcast mechanism used for timers is abstracted by a
function pointer on struct clock_event_device. As the fundamental
mechanism for broadcast is architecture-specific, this ties each
clock_event_device driver to a single architecture, even where the
driver is otherwise generic.
This patch adds a standard path for the receipt of timer broadcasts, so
drivers and/or architecture backends need not manage redundant lists of
timers for the purpose of routing broadcast timer ticks.
[tglx: Made the implementation depend on the config switch as well ]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: nico@linaro.org
Cc: Will.Deacon@arm.com
Cc: Marc.Zyngier@arm.com
Cc: john.stultz@linaro.org
Link: http://lkml.kernel.org/r/1358183124-28461-2-git-send-email-mark.rutland@arm.com
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/clockchips.h')
| -rw-r--r-- | include/linux/clockchips.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h index 8a7096fcb01e..e1089aa7816d 100644 --- a/include/linux/clockchips.h +++ b/include/linux/clockchips.h @@ -161,6 +161,10 @@ clockevents_calc_mult_shift(struct clock_event_device *ce, u32 freq, u32 minsec) extern void clockevents_suspend(void); extern void clockevents_resume(void); +#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST +extern int tick_receive_broadcast(void); +#endif + #ifdef CONFIG_GENERIC_CLOCKEVENTS extern void clockevents_notify(unsigned long reason, void *arg); #else |