From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jani Nikula <jani.nikula@linux.intel.com>
Subject: Re: [bisect result] Re: 3.15-rc2: i915 regression: only top 20% of
 screen works in X
Date: Fri, 25 Apr 2014 14:33:14 +0300
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To: Pavel Machek <pavel@ucw.cz>, Chris Wilson <chris@chris-wilson.co.uk>, Daniel Vetter <daniel.vetter@ffwll.ch>, intel-gfx <intel-gfx@lists.freedesktop.org>, "Rafael J. Wysocki" <rjw@rjwysocki.net>, dri-devel <dri-devel@lists.freedesktop.org>, kernel list <linux-kernel@vger.kernel.org>, Jiri Kosina <jikos@jikos.cz>
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On Fri, 25 Apr 2014, Pavel Machek <pavel@ucw.cz> wrote:
>> On Thu, Apr 24, 2014 at 09:40:38PM +0200, Pavel Machek wrote:
>> > Hi!
>> > 
>> > > And if you can indeed reliably reproduce this a bisect could be really useful.
>> > 
>> > And we have a winner here :-)
>> > 
>> > Ok, it was not as painfull as I feared.
>> > 
>> > It does not revert cleanly, but doing it by hand was not that bad.
>> 
>> Oh my. That is bizarre, can you check whether you have
>> 
>> commit 9991ae787a0c87fe7c783b4b6f4754c3cdbb6213
>
> Yes, with that commit, graphics is back to working state. Please push
> it to mainline soon -- it fixes a regression. Feel free  to add
>
> Tested-by: Pavel Machek <pavel@ucw.cz>

I cherry-picked and pushed

commit 9991ae787a0c87fe7c783b4b6f4754c3cdbb6213
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Wed Apr 2 16:36:07 2014 +0100

    drm/i915: Move all ring resets before setting the HWS page

to -fixes. Thanks for testing.

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Technology Center