Re: [PATCH 03/10] drm/i915: Use the atomic state in intel_update_primary_planes.

Daniel Vetter
2015-09-10T16:28:19Z

On Thu, Sep 10, 2015 at 06:43:26PM +0300, Ville Syrjälä wrote:
> On Thu, Sep 10, 2015 at 04:07:58PM +0200, Maarten Lankhorst wrote:
> > This function was still using the legacy state, convert it to atomic.
> > While we're at it, fix the FIXME too and disable the primary plane.
> >
> > Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
> > ---
> > drivers/gpu/drm/i915/intel_display.c | 26 ++++++++++++--------------
> > 1 file changed, 12 insertions(+), 14 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> > index 33200403a5db..b68aa95c5460 100644
> > --- a/drivers/gpu/drm/i915/intel_display.c
> > +++ b/drivers/gpu/drm/i915/intel_display.c
> > @@ -3138,24 +3138,22 @@ static void intel_complete_page_flips(struct drm_device *dev)
> >
> > static void intel_update_primary_planes(struct drm_device *dev)
> > {
> > - struct drm_i915_private *dev_priv = dev->dev_private;
> > struct drm_crtc *crtc;
> >
> > for_each_crtc(dev, crtc) {
> > - struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> > + struct intel_plane *plane = to_intel_plane(crtc->primary);
> > + struct intel_plane_state *plane_state;
> >
> > - drm_modeset_lock(&crtc->mutex, NULL);
> > - /*
> > - * FIXME: Once we have proper support for primary planes (and
> > - * disabling them without disabling the entire crtc) allow again
> > - * a NULL crtc->primary->fb.
> > - */
> > - if (intel_crtc->active && crtc->primary->fb)
> > - dev_priv->display.update_primary_plane(crtc,
> > - crtc->primary->fb,
> > - crtc->x,
> > - crtc->y);
> > - drm_modeset_unlock(&crtc->mutex);
> > + drm_modeset_lock_crtc(crtc, &plane->base);
> > +
> > + plane_state = to_intel_plane_state(plane->base.state);
> > +
> > + if (plane_state->base.fb)
> > + plane->commit_plane(&plane->base, plane_state);
> > + else if (crtc->state->active)
> > + plane->disable_plane(&plane->base, crtc);
>
> That doesn't make sense. There's no way to disable a plane with a page
> flip, so there's simply nothing to do here if the fb is NULL. If we can
> trust the plane state to be sane we should just check 'visible' here and
> commit the plane in that case.

Right missed that and squash up a fixup that Ville acked on irc. Also
added the FIXME comment too.
-Daniel

>
> > +
> > + drm_modeset_unlock_crtc(crtc);
> > }
> > }
> >
> > --
> > 2.1.0
> >
> > _______________________________________________
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> > Intel-gfx@lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
> --
> Ville Syrjälä
> Intel OTC
> _______________________________________________
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> Intel-gfx@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

--
Daniel Vetter
Software Engineer, Intel Corporation