> -----Original Message----- > From: Intel-gfx <[email protected]> On Behalf Of Ville > Syrjala > Sent: Saturday, July 18, 2020 2:44 AM > To: [email protected] > Subject: [Intel-gfx] [PATCH 10/20] drm/i915: Add gamma/degamma readout for > bdw+ > > From: Ville Syrjälä <[email protected]> > > Read out the gamme/degamma LUT on bdw+. Not entirely complete as we need
s/gamme/gamma With this, Reviewed-by: Uma Shankar <[email protected]> > a bit more special sauce to handle the split gamma mode. > > Signed-off-by: Ville Syrjälä <[email protected]> > --- > drivers/gpu/drm/i915/display/intel_color.c | 27 ++++++++++++++++++++++ > 1 file changed, 27 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/intel_color.c > b/drivers/gpu/drm/i915/display/intel_color.c > index 6842f5c0356d..5742ac1af862 100644 > --- a/drivers/gpu/drm/i915/display/intel_color.c > +++ b/drivers/gpu/drm/i915/display/intel_color.c > @@ -1991,6 +1991,32 @@ static struct drm_property_blob > *bdw_read_lut_10(struct intel_crtc *crtc, > return blob; > } > > +static void bdw_read_luts(struct intel_crtc_state *crtc_state) { > + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); > + struct drm_property_blob **blob = > + crtc_state->csc_mode & CSC_POSITION_BEFORE_GAMMA ? > + &crtc_state->hw.gamma_lut : &crtc_state->hw.degamma_lut; > + > + if (!crtc_state->gamma_enable) > + return; > + > + switch (crtc_state->gamma_mode) { > + case GAMMA_MODE_MODE_8BIT: > + *blob = ilk_read_lut_8(crtc); > + break; > + case GAMMA_MODE_MODE_SPLIT: > + /* FIXME */ > + break; > + case GAMMA_MODE_MODE_10BIT: > + *blob = bdw_read_lut_10(crtc, PAL_PREC_INDEX_VALUE(0)); > + break; > + default: > + MISSING_CASE(crtc_state->gamma_mode); > + break; > + } > +} > + > static struct drm_property_blob *glk_read_degamma_lut(struct intel_crtc > *crtc) > { > struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); @@ -2154,6 > +2180,7 @@ void intel_color_init(struct intel_crtc *crtc) > dev_priv->display.read_luts = glk_read_luts; > } else if (INTEL_GEN(dev_priv) >= 8) { > dev_priv->display.load_luts = bdw_load_luts; > + dev_priv->display.read_luts = bdw_read_luts; > } else if (INTEL_GEN(dev_priv) >= 7) { > dev_priv->display.load_luts = ivb_load_luts; > } else { > -- > 2.26.2 > > _______________________________________________ > Intel-gfx mailing list > [email protected] > https://lists.freedesktop.org/mailman/listinfo/intel-gfx _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
