Re: [PATCH 2/7] drm/i915: Allow intel_plane_disable() to operate on all plane types

["Ville Syrjälä" <ville.syrjala@linux.intel.com>]

On Thu, Nov 13, 2014 at 11:11:38AM -0800, Bob Paauwe wrote:
> On Thu, 13 Nov 2014 10:43:21 -0800
> Matt Roper <matthew.d.roper@intel.com> wrote:
> 
> > We'll want to call this from the type-agnostic atomic plane helper
> > hooks.  Since it's not sprite-specific anymore, more it to
> > intel_display.c as well.
> > 
> > Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
> > ---
> >  drivers/gpu/drm/i915/intel_display.c | 21 +++++++++++++++++++++
> >  drivers/gpu/drm/i915/intel_drv.h     |  3 ++-
> >  drivers/gpu/drm/i915/intel_sprite.c  | 10 +---------
> >  3 files changed, 24 insertions(+), 10 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> > index a9f90b8..c6598e9 100644
> > --- a/drivers/gpu/drm/i915/intel_display.c
> > +++ b/drivers/gpu/drm/i915/intel_display.c
> > @@ -13679,3 +13679,24 @@ void intel_modeset_preclose(struct drm_device *dev, struct drm_file *file)
> >  		spin_unlock_irq(&dev->event_lock);
> >  	}
> >  }
> > +
> > +void intel_plane_disable(struct drm_plane *plane)
> > +{
> > +	if (!plane->crtc || !plane->fb)
> > +		return;
> > +
> > +	switch (plane->type) {
> > +	case DRM_PLANE_TYPE_PRIMARY:
> > +		intel_primary_plane_disable(plane);
> > +		break;
> > +	case DRM_PLANE_TYPE_CURSOR:
> > +		intel_cursor_plane_disable(plane);
> > +		break;
> > +	case DRM_PLANE_TYPE_OVERLAY:
> > +		intel_disable_plane(plane);
> > +		break;
> > +	default:
> > +		WARN(1, "Unknown plane type");
> > +	}
> > +}
> > +
> > diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> > index bd5ef4e..df1420b 100644
> > --- a/drivers/gpu/drm/i915/intel_drv.h
> > +++ b/drivers/gpu/drm/i915/intel_drv.h
> > @@ -920,6 +920,7 @@ void intel_prepare_page_flip(struct drm_device *dev, int plane);
> >  void intel_finish_page_flip(struct drm_device *dev, int pipe);
> >  void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
> >  void intel_check_page_flip(struct drm_device *dev, int pipe);
> > +void intel_plane_disable(struct drm_plane *plane);
> >  
> >  /* shared dpll functions */
> >  struct intel_shared_dpll *intel_crtc_to_shared_dpll(struct intel_crtc *crtc);
> > @@ -1180,7 +1181,6 @@ int intel_plane_set_property(struct drm_plane *plane,
> >  			     struct drm_property *prop,
> >  			     uint64_t val);
> >  int intel_plane_restore(struct drm_plane *plane);
> > -void intel_plane_disable(struct drm_plane *plane);
> >  int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
> >  			      struct drm_file *file_priv);
> >  int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
> > @@ -1188,6 +1188,7 @@ int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
> >  bool intel_pipe_update_start(struct intel_crtc *crtc,
> >  			     uint32_t *start_vbl_count);
> >  void intel_pipe_update_end(struct intel_crtc *crtc, u32 start_vbl_count);
> > +int intel_disable_plane(struct drm_plane *plane);
> 
> Would it make sense to rename this to intel_sprite_plane_disable() as
> part of this?  It would be more consistent with the cursor and primary
> plane naming conventions and likely avoid some confusion with the
> intel_plane_disable() function.

Hmm. Why do we even still have some kind of disable hook in the atomic
age? I would expect to just have .commit() or somesuch thing.

But is there's still some need for a disable hook, shouldn't we just call
the .disable_plane() hook of drm_plane? I guess I should really go and
read some this new helper stuff...

> >  
> >  /* intel_tv.c */
> >  void intel_tv_init(struct drm_device *dev);
> > diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> > index fc96d13..115acd3 100644
> > --- a/drivers/gpu/drm/i915/intel_sprite.c
> > +++ b/drivers/gpu/drm/i915/intel_sprite.c
> > @@ -1425,7 +1425,7 @@ intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
> >  	return 0;
> >  }
> >  
> > -static int
> > +int
> >  intel_disable_plane(struct drm_plane *plane)
> >  {
> >  	struct drm_device *dev = plane->dev;
> > @@ -1576,14 +1576,6 @@ int intel_plane_restore(struct drm_plane *plane)
> >  				  intel_plane->src_w, intel_plane->src_h);
> >  }
> >  
> > -void intel_plane_disable(struct drm_plane *plane)
> > -{
> > -	if (!plane->crtc || !plane->fb)
> > -		return;
> > -
> > -	intel_disable_plane(plane);
> > -}
> > -
> >  static const struct drm_plane_funcs intel_plane_funcs = {
> >  	.update_plane = intel_update_plane,
> >  	.disable_plane = intel_disable_plane,
> 
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-- 
Ville Syrjälä
Intel OTC
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