From: Ben Widawsky <benjamin.widawsky@intel.com>
Date: Wed, 18 Dec 2013 04:06:00 +0000 (-0800)
Subject: drm/i915: Fix disabled semaphores
X-Git-Tag: v3.14-rc1~47^2~4^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0a9f74c0d735bc1b5a2811fe73c99604394374e;p=pandora-kernel.git

drm/i915: Fix disabled semaphores

The ring will emit too many if semaphores are disabled since we do not
add the correct number to num_dwords anymore.

This was introduced:
commit 52ed23253b68e1cf154b03d91bed619504cf955b
Author: Ben Widawsky <benjamin.widawsky@intel.com>
Date:   Mon Dec 16 20:50:38 2013 -0800

    drm/i915: Don't emit mbox updates without semaphores

FWIW, the bug was fixed later in the series.

/me hangs head in shame.

Daniel: Also note that we should have merged the read-only semaphore
modparam before this patch.

Reported-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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