From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 5 Oct 2012 16:02:56 +0000 (+0100)
Subject: drm/i915: Align the hangcheck wakeup to the nearest second
X-Git-Tag: v3.8-rc1~82^2~192^2~204
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cecc21fea98cd18419e26a46e4e8123f55fead91;p=pandora-kernel.git

drm/i915: Align the hangcheck wakeup to the nearest second

round_jiffies() aligns the wakeup time to the nearest second in order to
batch wakeups and reduce system load, which is useful for unimportant
coarse timers like our hangcheck.

v2: round_jiffies_relative() returns the relative jiffie value, whereas
we need the absolute value for the timer.

Suggested-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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