From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: [PATCH] drm/i915: Don't reinit hpd interrupts after
	gpu reset
Date: Tue, 9 Sep 2014 17:14:22 +0200
Message-ID: <20140909151422.GL15520@phenom.ffwll.local>
References: <1410193038-328-1-git-send-email-daniel.vetter@ffwll.ch>
 <20140909130315.GG4193@intel.com>
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To: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>, Intel Graphics Development <intel-gfx@lists.freedesktop.org>
List-Id: intel-gfx@lists.freedesktop.org

On Tue, Sep 09, 2014 at 04:03:15PM +0300, Ville Syrj=E4l=E4 wrote:
> On Mon, Sep 08, 2014 at 06:17:18PM +0200, Daniel Vetter wrote:
> > Somehow I've overlooked this when simplifying the irq reinit
> > scheme on gen4.5+ in
> > =

> > commit 78ad455fd229c6f6cc2f390ccbe0d8f1a62d55a9
> > Author: Daniel Vetter <daniel.vetter@ffwll.ch>
> > Date:   Thu May 22 22:18:21 2014 +0200
> > =

> >     drm/i915: Improve irq handling after gpu resets
> > =

> > Since display interrups in general survive a gpu reset on those
> > platforms there's also no need to reinit the hotplug settings.
> > =

> > Cc: Ville Syrj=E4l=E4 <ville.syrjala@linux.intel.com>
> > Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> =

> This matches my observations on actual hardware. IIRC I looked at the
> reset vs. interrupt registers at least on ILK and IVB and the registers
> retained their current values on both.
> =

> Reviewed-by: Ville Syrj=E4l=E4 <ville.syrjala@linux.intel.com>

Queued for -next, thanks for the patch.
-Daniel
-- =

Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch