[bisect result] Re: 3.15-rc2: i915 regression: only top 20% of screen works in X

[Jani Nikula]

On Fri, 25 Apr 2014, Pavel Machek <pavel at 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 at ucw.cz>

I cherry-picked and pushed

commit 9991ae787a0c87fe7c783b4b6f4754c3cdbb6213
Author: Chris Wilson <chris at 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