Add callback for setting CTM block in platforms TGL and beyond
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@xxxxxxxxx>
Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_color.c | 79 ++++++++++++++++++++++
1 file changed, 79 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 8dc72ad25700..85c4b6a9d5f9 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -3688,6 +3688,84 @@ static void icl_read_luts(struct intel_crtc_state *crtc_state)
}
}
+static void xelpd_load_plane_csc_matrix(const struct drm_plane_state *state,
+ const struct drm_property_blob *blob)
+{
+ struct drm_i915_private *dev_priv = to_i915(state->plane->dev);
+ enum pipe pipe = to_intel_plane(state->plane)->pipe;
+ enum plane_id plane = to_intel_plane(state->plane)->id;
+ struct drm_color_ctm *ctm;
+ const u64 *input;
+ u16 coeffs[9] = {};
+ u16 postoff = 0;
+ int i;
+
+ if (!icl_is_hdr_plane(dev_priv, plane) || !blob)
+ return;
+
+ ctm = blob->data;
+ input = ctm->matrix;
+
+ /*
+ * Convert fixed point S31.32 input to format supported by the
+ * hardware.
+ */
+ for (i = 0; i < ARRAY_SIZE(coeffs); i++) {
+ u64 abs_coeff = ((1ULL << 63) - 1) & input[i];
+
+ /*
+ * Clamp input value to min/max supported by
+ * hardware.
+ */
+ abs_coeff = clamp_val(abs_coeff, 0, CTM_COEFF_4_0 - 1);
+
+ /* sign bit */
+ if (CTM_COEFF_NEGATIVE(input[i]))
+ coeffs[i] |= 1 << 15;
+
+ if (abs_coeff < CTM_COEFF_0_125)
+ coeffs[i] |= (3 << 12) |
+ ILK_CSC_COEFF_FP(abs_coeff, 12);
+ else if (abs_coeff < CTM_COEFF_0_25)
+ coeffs[i] |= (2 << 12) |
+ ILK_CSC_COEFF_FP(abs_coeff, 11);
+ else if (abs_coeff < CTM_COEFF_0_5)
+ coeffs[i] |= (1 << 12) |
+ ILK_CSC_COEFF_FP(abs_coeff, 10);
+ else if (abs_coeff < CTM_COEFF_1_0)
+ coeffs[i] |= ILK_CSC_COEFF_FP(abs_coeff, 9);
+ else if (abs_coeff < CTM_COEFF_2_0)
+ coeffs[i] |= (7 << 12) |
+ ILK_CSC_COEFF_FP(abs_coeff, 8);
+ else
+ coeffs[i] |= (6 << 12) |
+ ILK_CSC_COEFF_FP(abs_coeff, 7);
+ }
+
+ intel_de_write_fw(dev_priv, PLANE_CSC_COEFF(pipe, plane, 0),
+ coeffs[0] << 16 | coeffs[1]);
+ intel_de_write_fw(dev_priv, PLANE_CSC_COEFF(pipe, plane, 1),
+ coeffs[2] << 16);
+
+ intel_de_write_fw(dev_priv, PLANE_CSC_COEFF(pipe, plane, 2),
+ coeffs[3] << 16 | coeffs[4]);
+ intel_de_write_fw(dev_priv, PLANE_CSC_COEFF(pipe, plane, 3),
+ coeffs[5] << 16);
+
+ intel_de_write_fw(dev_priv, PLANE_CSC_COEFF(pipe, plane, 4),
+ coeffs[6] << 16 | coeffs[7]);
+ intel_de_write_fw(dev_priv, PLANE_CSC_COEFF(pipe, plane, 5),
+ coeffs[8] << 16);
+
+ intel_de_write_fw(dev_priv, PLANE_CSC_PREOFF(pipe, plane, 0), 0);
+ intel_de_write_fw(dev_priv, PLANE_CSC_PREOFF(pipe, plane, 1), 0);
+ intel_de_write_fw(dev_priv, PLANE_CSC_PREOFF(pipe, plane, 2), 0);
+
+ intel_de_write_fw(dev_priv, PLANE_CSC_POSTOFF(pipe, plane, 0), postoff);
+ intel_de_write_fw(dev_priv, PLANE_CSC_POSTOFF(pipe, plane, 1), postoff);
+ intel_de_write_fw(dev_priv, PLANE_CSC_POSTOFF(pipe, plane, 2), postoff);
+}
+
void intel_color_load_plane_csc_matrix(const struct drm_plane_state *plane_state,
const struct drm_property_blob *blob)
{
@@ -3744,6 +3822,7 @@ static const struct intel_color_funcs tgl_color_funcs = {
.lut_equal = icl_lut_equal,
.read_csc = icl_read_csc,
.get_config = skl_get_config,
+ .load_plane_csc_matrix = xelpd_load_plane_csc_matrix,
};
static const struct intel_color_funcs icl_color_funcs = {
--
2.42.0
