linux-kernel - Re: [PATCH] drm/i915: Suppress spurious vblank interrupts

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Message-Id: <0d30dc$kuat3i@orsmga001.jf.intel.com>
Date:	Tue, 01 Feb 2011 17:46:05 +0000
From:	Chris Wilson <chris@...is-wilson.co.uk>
To:	Hugh Dickins <hughd@...gle.com>
Cc:	Mario Kleiner <mario.kleiner@...bingen.mpg.de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/i915: Suppress spurious vblank interrupts

On Tue, 1 Feb 2011 09:34:12 -0800 (PST), Hugh Dickins <hughd@...gle.com> wrote:
> Thanks a lot for devising this, Chris, I really appreciate it.
> 
> But so far I can't be more enthusiastic than "seems to be a good
> improvement most of the time" - though I've not spent long on this
> laptop since putting it on to -rc3.

Yeah, this is really just an interim patch. Removes one instance of doing
work when we don't need to, but it does not answer why the vblank patches
made your machines worse (since the same spurious interrupt bug is present
in 2.6.37 and earlier).
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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