From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 24 Apr 2012 21:59:50 +0000 (+0100)
Subject: drm/i915: Handle PendingFlip on gen3 robustly
X-Git-Tag: v3.5-rc1~83^2~8^2~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=38bde18045afe854f389961846d64c4b3f86105f;p=pandora-kernel.git

drm/i915: Handle PendingFlip on gen3 robustly

We appear to allow too many pending pageflips as evidenced by an
apparent pin-leak. So borrow the pageflip completion logic from i8xx for
handling PendingFlip in a robust manner.

v2: Address Jesse's reminders about the nuances of gen3 IRQ handling.

References: https://bugzilla.kernel.org/show_bug.cgi?id=41882
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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