[Intel-gfx] [PATCH] drm/i915: Don't reinit hpd interrupts after gpu reset

[Daniel Vetter]

On Tue, Sep 09, 2014 at 04:03:15PM +0300, Ville Syrjälä 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 at 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 Syrjälä <ville.syrjala at linux.intel.com>
> > Signed-off-by: Daniel Vetter <daniel.vetter at 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 Syrjälä <ville.syrjala at 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