Re: [PATCH] drm/atomic-helper: Use old/new state in drm_atomic_helper_commit_planes_on_crtc()

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On Wed, Jun 27, 2018 at 10:59:49AM +0200, Daniel Vetter wrote:
> On Tue, Jun 26, 2018 at 11:41:44PM +0300, Ville Syrjala wrote:
> > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > 
> > Update drm_atomic_helper_commit_planes_on_crtc() to use explicit old/new
> > states instead of relying on obj->state.
> > 
> > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>

Thansk. Pushed to drm-misc-next.

> 
> > ---
> >  drivers/gpu/drm/drm_atomic_helper.c | 15 ++++++++++-----
> >  1 file changed, 10 insertions(+), 5 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
> > index e022cacdae34..8008a7de2e10 100644
> > --- a/drivers/gpu/drm/drm_atomic_helper.c
> > +++ b/drivers/gpu/drm/drm_atomic_helper.c
> > @@ -2342,11 +2342,13 @@ drm_atomic_helper_commit_planes_on_crtc(struct drm_crtc_state *old_crtc_state)
> >  	const struct drm_crtc_helper_funcs *crtc_funcs;
> >  	struct drm_crtc *crtc = old_crtc_state->crtc;
> >  	struct drm_atomic_state *old_state = old_crtc_state->state;
> > +	struct drm_crtc_state *new_crtc_state =
> > +		drm_atomic_get_new_crtc_state(old_state, crtc);
> >  	struct drm_plane *plane;
> >  	unsigned plane_mask;
> >  
> >  	plane_mask = old_crtc_state->plane_mask;
> > -	plane_mask |= crtc->state->plane_mask;
> > +	plane_mask |= new_crtc_state->plane_mask;
> >  
> >  	crtc_funcs = crtc->helper_private;
> >  	if (crtc_funcs && crtc_funcs->atomic_begin)
> > @@ -2355,6 +2357,8 @@ drm_atomic_helper_commit_planes_on_crtc(struct drm_crtc_state *old_crtc_state)
> >  	drm_for_each_plane_mask(plane, crtc->dev, plane_mask) {
> >  		struct drm_plane_state *old_plane_state =
> >  			drm_atomic_get_old_plane_state(old_state, plane);
> > +		struct drm_plane_state *new_plane_state =
> > +			drm_atomic_get_new_plane_state(old_state, plane);
> >  		const struct drm_plane_helper_funcs *plane_funcs;
> >  
> >  		plane_funcs = plane->helper_private;
> > @@ -2362,13 +2366,14 @@ drm_atomic_helper_commit_planes_on_crtc(struct drm_crtc_state *old_crtc_state)
> >  		if (!old_plane_state || !plane_funcs)
> >  			continue;
> >  
> > -		WARN_ON(plane->state->crtc && plane->state->crtc != crtc);
> > +		WARN_ON(new_plane_state->crtc &&
> > +			new_plane_state->crtc != crtc);
> >  
> > -		if (drm_atomic_plane_disabling(old_plane_state, plane->state) &&
> > +		if (drm_atomic_plane_disabling(old_plane_state, new_plane_state) &&
> >  		    plane_funcs->atomic_disable)
> >  			plane_funcs->atomic_disable(plane, old_plane_state);
> > -		else if (plane->state->crtc ||
> > -			 drm_atomic_plane_disabling(old_plane_state, plane->state))
> > +		else if (new_plane_state->crtc ||
> > +			 drm_atomic_plane_disabling(old_plane_state, new_plane_state))
> >  			plane_funcs->atomic_update(plane, old_plane_state);
> >  	}
> >  
> > -- 
> > 2.16.4
> > 
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> -- 
> Daniel Vetter
> Software Engineer, Intel Corporation
> http://blog.ffwll.ch

-- 
Ville Syrjälä
Intel
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