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(parent: 71a05ea) | patch
ARM: OMAP: Avoid updating system time for sub-jiffy interrupts
authorTony Lindgren <tony@atomide.com>
Thu, 7 Dec 2006 22:01:23 +0000 (14:01 -0800)
committerTony Lindgren <tony@atomide.com>
Wed, 4 Apr 2007 14:31:58 +0000 (10:31 -0400)
commite91895278b6da5898c188f565f2769eb7364dc22
tree6a0496b4b19c3ec7cec7ca74dc11e70421657f62tree | snapshot
parent71a05eaa493f5cbd0c581496bac5b86e51a6eb91commit | diff
ARM: OMAP: Avoid updating system time for sub-jiffy interrupts

Updating system time and reprogramming timer can cause latency
issues on busy systems with lots of interrupts with constant
updating of time and reprogramming the system timer.

If a non-timer dyntick interrupt happens within a jiffy from
the last interrupt, updating time and reprogramming the timer
is unnecessary as we will get a timer interrupt soon anyways.

Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/plat-omap/timer32k.c diff | blob | history
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