On Tue, Sep 24, 2019 at 09:55:31PM -0700, Matt Roper wrote:
> On Fri, Sep 20, 2019 at 01:42:21PM +0200, Maarten Lankhorst wrote:
> > We cannot switch between HQ and normal mode on GLK+, so only
> > add planes on platforms where it makes sense.
> >
> > We could probably restrict it even more to only add when scaler
> > users toggles between 1 and 2, but lets just leave it for now.
> >
> > Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
> > ---
> > drivers/gpu/drm/i915/display/intel_atomic.c | 5 +++++
> > 1 file changed, 5 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c
> > b/drivers/gpu/drm/i915/display/intel_atomic.c
> > index 158594e64bb9..c50e0b218bd6 100644
> > --- a/drivers/gpu/drm/i915/display/intel_atomic.c
> > +++ b/drivers/gpu/drm/i915/display/intel_atomic.c
> > @@ -421,6 +421,11 @@ int intel_atomic_setup_scalers(struct drm_i915_private
> > *dev_priv,
> > */
> > if (!plane) {
> > struct drm_plane_state *state;
> > +
> > + /* No need to reprogram, we're not changing
> > scaling mode */
> > + if (INTEL_GEN(dev_priv) >= 10 ||
> > IS_GEMINILAKE(dev_priv))
> > + continue;
> > +
>
> We could probably just combine this into the existing !plane condition
> and enhance the comment above that to say "Note that GLK+ scalers don't
> have a HQ mode so this isn't necessary on those platforms."
I'm rewriting this whole scaler mess.
>
> Either way,
>
> Reviewed-by: Matt Roper <matthew.d.ro...@intel.com>
>
>
> > plane = drm_plane_from_index(&dev_priv->drm, i);
> > state = drm_atomic_get_plane_state(drm_state,
> > plane);
> > if (IS_ERR(state)) {
> > --
> > 2.20.1
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/intel-gfx
>
> --
> Matt Roper
> Graphics Software Engineer
> VTT-OSGC Platform Enablement
> Intel Corporation
> (916) 356-2795
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Ville Syrjälä
Intel
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