This defines the lut segments and create the color pipeline
Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_color.c | 109 +++++++++++++++++++++
1 file changed, 109 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index e223edbe4c13..223cd1ff7291 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -3811,6 +3811,105 @@ static const struct intel_color_funcs ilk_color_funcs = {
.get_config = ilk_get_config,
};
+static const struct drm_color_lut_range xelpd_degamma_hdr[] = {
+ /* segment 1 */
+ {
+ .flags = (DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 128,
+ .input_bpc = 24, .output_bpc = 16,
+ .start = 0, .end = (1 << 24) - 1,
+ .min = 0, .max = (1 << 24) - 1,
+ },
+ /* segment 2 */
+ {
+ .flags = (DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_REUSE_LAST |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 1,
+ .input_bpc = 24, .output_bpc = 16,
+ .start = (1 << 24) - 1, .end = 1 << 24,
+ .min = 0, .max = (1 << 27) - 1,
+ },
+ /* Segment 3 */
+ {
+ .flags = (DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_REUSE_LAST |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 1,
+ .input_bpc = 24, .output_bpc = 16,
+ .start = 1 << 24, .end = 3 << 24,
+ .min = 0, .max = (1 << 27) - 1,
+ },
+ /* Segment 4 */
+ {
+ .flags = (DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_REUSE_LAST |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 1,
+ .input_bpc = 24, .output_bpc = 16,
+ .start = 3 << 24, .end = 7 << 24,
+ .min = 0, .max = (1 << 27) - 1,
+ }
+};
+
+/* FIXME input bpc? */
+static const struct drm_color_lut_range xelpd_gamma_hdr[] = {
+ /*
+ * ToDo: Add Segment 1
+ * There is an optional fine segment added with 9 lut values
+ * Will be added later
+ */
+
+ /* segment 2 */
+ {
+ .flags = (DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 32,
+ .input_bpc = 24, .output_bpc = 16,
+ .start = 0, .end = (1 << 24) - 1,
+ .min = 0, .max = (1 << 24) - 1,
+ },
+ /* segment 3 */
+ {
+ .flags = (DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_REUSE_LAST |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 1,
+ .input_bpc = 24, .output_bpc = 16,
+ .start = (1 << 24) - 1, .end = 1 << 24,
+ .min = 0, .max = 1 << 24,
+ },
+ /* Segment 4 */
+ {
+ .flags = (DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_REUSE_LAST |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 1,
+ .input_bpc = 24, .output_bpc = 16,
+ .start = 1 << 24, .end = 3 << 24,
+ .min = 0, .max = (3 << 24),
+ },
+ /* Segment 5 */
+ {
+ .flags = (DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_REUSE_LAST |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 1,
+ .input_bpc = 24, .output_bpc = 16,
+ .start = 3 << 24, .end = 7 << 24,
+ .min = 0, .max = (7 << 24),
+ },
+};
+
/* TODO: Move to another file */
struct intel_plane_colorop *intel_colorop_alloc(void)
{
@@ -3865,6 +3964,11 @@ int intel_plane_tf_pipeline_init(struct drm_plane *plane, struct drm_prop_enum_l
if (ret)
return ret;
+ if (icl_is_hdr_plane(i915, to_intel_plane(plane)->id)) {
+ drm_colorop_lutcaps_init(&colorop->base, plane, xelpd_degamma_hdr,
+ sizeof(xelpd_degamma_hdr));
+ }
+
list->type = colorop->base.base.id;
list->name = kasprintf(GFP_KERNEL, "Color Pipeline %d", colorop->base.base.id);
@@ -3886,6 +3990,11 @@ int intel_plane_tf_pipeline_init(struct drm_plane *plane, struct drm_prop_enum_l
if (ret)
return ret;
+ if (icl_is_hdr_plane(i915, to_intel_plane(plane)->id)) {
+ drm_colorop_lutcaps_init(&colorop->base, plane, xelpd_gamma_hdr,
+ sizeof(xelpd_gamma_hdr));
+ }
+
drm_colorop_set_next_property(prev_op, &colorop->base);
return 0;
--
2.42.0
