Re: [PATCH 3/9] drm/i915: Use plane->state->fb instead of plane->fb in intel_plane_restore()

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On Tue, Mar 10, 2015 at 10:01:47AM -0700, Matt Roper wrote:
> On Tue, Mar 10, 2015 at 01:15:23PM +0200, ville.syrjala@xxxxxxxxxxxxxxx wrote:
> > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > 
> > plane->fb is not as reliable as plane->state->fb so let's convert
> > intel_plane_restore() over the the new way of thinking as well.
> > 
> > Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
> > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > ---
> >  drivers/gpu/drm/i915/intel_sprite.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> > index 7051da7..a828736 100644
> > --- a/drivers/gpu/drm/i915/intel_sprite.c
> > +++ b/drivers/gpu/drm/i915/intel_sprite.c
> > @@ -1361,10 +1361,10 @@ out_unlock:
> >  
> >  int intel_plane_restore(struct drm_plane *plane)
> >  {
> > -	if (!plane->crtc || !plane->fb)
> > +	if (!plane->crtc || !plane->state->fb)
> >  		return 0;
> >  
> > -	return plane->funcs->update_plane(plane, plane->crtc, plane->fb,
> > +	return plane->funcs->update_plane(plane, plane->crtc, plane->state->fb,
> 
> While we're at it, should we s/plane->crtc/plane->state->crtc/ as well?

I tried to make that change everywhere and it blew up. But I think that
was simply because I changed it some .commit hook as well, and currently
we don't have the old state around there, so the 'crtc ? crtc : state->crtc'
just ended up as 'crtc' effectively and that of course didn't work as well
as I'd hoped ;)

But yeah maybe we should make that change. Would just need to pass the
old state to commit instead of the new state, I think.

> 
> Otherwise, 1-3 are
> 
> Reviewed-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
> 
> >  				  plane->state->crtc_x, plane->state->crtc_y,
> >  				  plane->state->crtc_w, plane->state->crtc_h,
> >  				  plane->state->src_x, plane->state->src_y,
> > -- 
> > 2.0.5
> > 
> 
> -- 
> Matt Roper
> Graphics Software Engineer
> IoTG Platform Enabling & Development
> Intel Corporation
> (916) 356-2795

-- 
Ville Syrjälä
Intel OTC
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