On Mon, Mar 22, 2021 at 08:00:06PM +0530, Bhanuprakash Modem wrote: > For ilk+, add hw read out to create hw blob of ctm coeff values.
We need an explanation why this is safe given display w/a 1184... > > Cc: Swati Sharma <[email protected]> > Cc: Uma Shankar <[email protected]> > Signed-off-by: Bhanuprakash Modem <[email protected]> > --- > drivers/gpu/drm/i915/display/intel_color.c | 52 ++++++++++++++++++++++ > 1 file changed, 52 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/intel_color.c > b/drivers/gpu/drm/i915/display/intel_color.c > index 15f97fbb77b3..877833f294bb 100644 > --- a/drivers/gpu/drm/i915/display/intel_color.c > +++ b/drivers/gpu/drm/i915/display/intel_color.c > @@ -321,6 +321,54 @@ static void ilk_load_csc_matrix(const struct > intel_crtc_state *crtc_state) > crtc_state->csc_mode); > } > > +static struct drm_property_blob *ilk_read_csc_matrix(struct intel_crtc *crtc) > +{ > + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); > + enum pipe pipe = crtc->pipe; > + struct drm_property_blob *blob; > + struct drm_color_ctm *ctm; > + u32 temp; > + > + blob = drm_property_create_blob(&dev_priv->drm, > + sizeof(struct drm_color_ctm), > + NULL); > + if (IS_ERR(blob)) > + return NULL; > + > + ctm = blob->data; > + > + temp = intel_de_read(dev_priv, PIPE_CSC_COEFF_RY_GY(pipe)); > + ctm->matrix[0] = (temp >> 16) & 0xffff; > + ctm->matrix[1] = temp & 0xffff; > + > + temp = intel_de_read(dev_priv, PIPE_CSC_COEFF_BY(pipe)); > + ctm->matrix[2] = (temp >> 16) & 0xffff; > + > + temp = intel_de_read(dev_priv, PIPE_CSC_COEFF_RU_GU(pipe)); > + ctm->matrix[3] = (temp >> 16) & 0xffff; > + ctm->matrix[4] = temp & 0xffff; > + > + temp = intel_de_read(dev_priv, PIPE_CSC_COEFF_BU(pipe)); > + ctm->matrix[5] = (temp >> 16) & 0xffff; > + > + temp = intel_de_read(dev_priv, PIPE_CSC_COEFF_RV_GV(pipe)); > + ctm->matrix[6] = (temp >> 16) & 0xffff; > + ctm->matrix[7] = temp & 0xffff; > + > + temp = intel_de_read(dev_priv, PIPE_CSC_COEFF_BV(pipe)); > + ctm->matrix[8] = (temp >> 16) & 0xffff; > + > + return blob; > +} > + > +static void ilk_read_csc(struct intel_crtc_state *crtc_state) > +{ > + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); > + > + if (crtc_state->csc_enable) > + crtc_state->hw.ctm = ilk_read_csc_matrix(crtc); > +} > + > static void icl_load_csc_matrix(const struct intel_crtc_state *crtc_state) > { > struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); > @@ -2226,13 +2274,17 @@ void intel_color_init(struct intel_crtc *crtc) > } else if (IS_CANNONLAKE(dev_priv) || IS_GEMINILAKE(dev_priv)) { > dev_priv->display.load_luts = glk_load_luts; > dev_priv->display.read_luts = glk_read_luts; > + dev_priv->display.read_csc = ilk_read_csc; > } else if (INTEL_GEN(dev_priv) >= 8) { > dev_priv->display.load_luts = bdw_load_luts; > + dev_priv->display.read_csc = ilk_read_csc; > } else if (INTEL_GEN(dev_priv) >= 7) { > dev_priv->display.load_luts = ivb_load_luts; > + dev_priv->display.read_csc = ilk_read_csc; > } else { > dev_priv->display.load_luts = ilk_load_luts; > dev_priv->display.read_luts = ilk_read_luts; > + dev_priv->display.read_csc = ilk_read_csc; > } > } > > -- > 2.20.1 > > _______________________________________________ > Intel-gfx mailing list > [email protected] > https://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Ville Syrjälä Intel _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
