From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sun, 23 Jan 2011 13:03:24 +0000 (+0000)
Subject: drm/i915: Handle the no-interrupts case for UMS by polling
X-Git-Tag: v2.6.38-rc3~65^2^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5a9a8d1a99c617df82339456fbdd30d6ed3a856b;p=pandora-kernel.git

drm/i915: Handle the no-interrupts case for UMS by polling

If the driver calls into the kernel to wait for a breadcrumb to pass,
but hasn't enabled interrupts, fallback to polling the breadcrumb value.

Reported-by: Chris Clayton <chris2553@googlemail.com>
Tested-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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