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(parent: a158d8e) | 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>
Mon, 16 Apr 2007 20:53:49 +0000 (20:53 +0000)
commite27ceb9a40b125445435b5f8c7d20ba688a677b5
tree90790ed1431f1e578b1059c5016c11348eead058tree | snapshot
parenta158d8e1e8d6c57ff25a60675867bd97ed7d6644commit | 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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