From: Ben Widawsky <ben@bwidawsk.net>
Date: Thu, 9 Feb 2012 09:15:20 +0000 (+0100)
Subject: drm/i915: check gtfifodbg after possibly failed writes
X-Git-Tag: v3.4-rc1~143^2~85^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=67a3744f7515edda9888df5b226ec3b358908b42;p=pandora-kernel.git

drm/i915: check gtfifodbg after possibly failed writes

If we don't have a sufficient number of free entries in the FIFO, we
proceed to do a write anyway. With this check we should have a clue if
that write actually failed or not.

After some discussion with Daniel Vetter regarding his original
complaint, we agreed upon this.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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