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

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Date:	Thu, 24 Apr 2014 21:40:38 +0200
From:	Pavel Machek <pavel@....cz>
To:	Daniel Vetter <daniel.vetter@...ll.ch>
Cc:	Chris Wilson <chris@...is-wilson.co.uk>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	dri-devel <dri-devel@...ts.freedesktop.org>,
	kernel list <linux-kernel@...r.kernel.org>,
	Jiri Kosina <jikos@...os.cz>
Subject: [bisect result] Re: 3.15-rc2: i915 regression: only top 20% of
 screen works in X

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.

Best regards,
   	    	   	    	      	    	     	 Pavel

a51435a3137ad8ae75c288c39bd2d8b2696bae8f is the first bad commit
commit a51435a3137ad8ae75c288c39bd2d8b2696bae8f
Author: Naresh Kumar Kachhi <naresh.kumar.kachhi@...el.com>
Date:   Wed Mar 12 16:39:40 2014 +0530

    drm/i915: disable rings before HW status page setup
    
    Rings should be idle before issuing sync_flush
    (in intel_ring_setup_status_page). This patch moves the ring
    disabling before doing the HW status page setup.
    
    Signed-off-by: Naresh Kumar Kachhi <naresh.kumar.kachhi@...el.com>
    Reviewed-by: Chris Wilson <chris@...is-wilson.co.uk>
    Signed-off-by: Daniel Vetter <daniel.vetter@...ll.ch>

:040000 040000 23f2763fe684882008ca395f38d0da1cf197a85e
f1052c959b35a99ceae9886603086c09edee5df8 M	drivers
pavel@amd:/data/l/linux-good$ 


-- 
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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