Add lut range information for SDR planes. This is used to
hint the userspace what kind of LUT values are needed by
the hardware block. Pre-CSC and Post-CSC blocks have similar
lut range for HDR planes.
Co-developed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@xxxxxxxxx>
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 | 55 ++++++++++++++++++++++
1 file changed, 55 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 5918e2e9bcdd..3900e3748a0e 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -3778,6 +3778,61 @@ static const struct intel_color_funcs ilk_color_funcs = {
.get_config = ilk_get_config,
};
+/* FIXME input bpc? */
+static const struct drm_color_lut_range xelpd_pre_post_csc_sdr[] = {
+ /* segment 1 */
+ {
+ .flags = (DRM_MODE_LUT_POST_CSC |
+ DRM_MODE_LUT_PRE_CSC |
+ DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 32,
+ .input_bpc = 16, .output_bpc = 16,
+ .start = 0, .end = (1 << 16) - (1 << 16) / 33,
+ .min = 0, .max = (1 << 16) - 1,
+ },
+ /* segment 2 */
+ {
+ .flags = (DRM_MODE_LUT_POST_CSC |
+ DRM_MODE_LUT_PRE_CSC |
+ DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_REUSE_LAST |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 1,
+ .input_bpc = 16, .output_bpc = 16,
+ .start = (1 << 16) - (1 << 16) / 33, .end = 1 << 16,
+ .min = 0, .max = 1 << 16,
+ },
+ /* Segment 3 */
+ {
+ .flags = (DRM_MODE_LUT_POST_CSC |
+ DRM_MODE_LUT_PRE_CSC |
+ DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_REUSE_LAST |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 1,
+ .input_bpc = 16, .output_bpc = 16,
+ .start = 1 << 16, .end = 3 << 16,
+ .min = 0, .max = (8 << 16) - 1,
+ },
+ /* Segment 4 */
+ {
+ .flags = (DRM_MODE_LUT_POST_CSC |
+ DRM_MODE_LUT_PRE_CSC |
+ DRM_MODE_LUT_REFLECT_NEGATIVE |
+ DRM_MODE_LUT_INTERPOLATE |
+ DRM_MODE_LUT_REUSE_LAST |
+ DRM_MODE_LUT_NON_DECREASING),
+ .count = 1,
+ .input_bpc = 16, .output_bpc = 16,
+ .start = 3 << 16, .end = 7 << 16,
+ .min = 0, .max = (8 << 16) - 1,
+ },
+};
+
void intel_color_crtc_init(struct intel_crtc *crtc)
{
struct drm_i915_private *i915 = to_i915(crtc->base.dev);
--
2.38.1
