On Thu, Mar 15, 2018 at 11:54:26PM +0000, Pandiyan, Dhinakaran wrote:
>
>
>
> On Mon, 2018-03-05 at 19:41 +0200, Ville Syrjala wrote:
> > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> >
> > We don't use the enum i9xx_plane_id namespace on SKL+ anymore, so
> > do not initialize the related plane_to_crtc_mapping[] table either.
> >
> > Actually the only remaining user of that table is the pre-g4x
> > watermark code, but no harm in initializing the table on all
> > pre-SKL platforms.
> >
> > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > ---
> > drivers/gpu/drm/i915/intel_display.c | 15 +++++++++++----
> > 1 file changed, 11 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> > index fb08590b4d40..435462bfc719 100644
> > --- a/drivers/gpu/drm/i915/intel_display.c
> > +++ b/drivers/gpu/drm/i915/intel_display.c
> > @@ -13572,10 +13572,17 @@ static int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
> > /* initialize shared scalers */
> > intel_crtc_init_scalers(intel_crtc, crtc_state);
> >
> > - BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
> > - dev_priv->plane_to_crtc_mapping[primary->i9xx_plane] != NULL);
> > - dev_priv->plane_to_crtc_mapping[primary->i9xx_plane] = intel_crtc;
> > - dev_priv->pipe_to_crtc_mapping[intel_crtc->pipe] = intel_crtc;
> > + BUG_ON(pipe >= ARRAY_SIZE(dev_priv->pipe_to_crtc_mapping) ||
> > + dev_priv->pipe_to_crtc_mapping[pipe] != NULL);
> > + dev_priv->pipe_to_crtc_mapping[pipe] = intel_crtc;
> > +
> > + if (INTEL_GEN(dev_priv) < 9) {
> > + enum i9xx_plane_id i9xx_plane = primary->i9xx_plane;
> > +
> > + BUG_ON(i9xx_plane >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
> > + dev_priv->plane_to_crtc_mapping[i9xx_plane] != NULL);
> > + dev_priv->plane_to_crtc_mapping[i9xx_plane] = intel_crtc;
>
>
> Verified that plane_to_crtc_mapping[i9xx_plane] is used only in pre-gen9
> code. Patch looks harmless
> Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@xxxxxxxxx>
>
> Should intel_get_crtc_for_plane be renamed to i9xx_get_crtc_for_plane()?
> and the table as i9xx_plane_to_crtc_mapping[]?
I'm going to nuke this thing entirely at some point. So I don't
think I'll bother with a rename, but if someone else wants to do
it I certainly won't object.
Thanks for the review. Patch pushed to dinq.
--
Ville Syrjälä
Intel OTC
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