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drm/amd/display: Add support for BT.709 and BT.2020 TFs

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This adds support for the BT.709/BT.2020 transfer functions
on all current 1D curve plane colorops, i.e., on DEGAM, SHAPER,
and BLND blocks.

With this change the following IGT subtests pass:
kms_colorop --run plane-XR30-XR30-bt2020_inv_oetf
kms_colorop --run plane-XR30-XR30-bt2020_oetf

Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patch.msgid.link/20251115000237.3561250-35-alex.hung@amd.com
This commit is contained in:
Harry Wentland 2025-11-14 17:01:59 -07:00 committed by Simon Ser
parent a355b3d6a4
commit ec891d8bff
2 changed files with 9 additions and 3 deletions
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3
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c
View File

@ -678,6 +678,9 @@ amdgpu_colorop_tf_to_dc_tf(enum drm_colorop_curve_1d_type tf)
case DRM_COLOROP_1D_CURVE_PQ_125_EOTF:
case DRM_COLOROP_1D_CURVE_PQ_125_INV_EOTF:
return TRANSFER_FUNCTION_PQ;
case DRM_COLOROP_1D_CURVE_BT2020_INV_OETF:
case DRM_COLOROP_1D_CURVE_BT2020_OETF:
return TRANSFER_FUNCTION_BT709;
default:
return TRANSFER_FUNCTION_LINEAR;
}

9
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c
View File

@ -33,15 +33,18 @@
const u64 amdgpu_dm_supported_degam_tfs =
BIT(DRM_COLOROP_1D_CURVE_SRGB_EOTF) |
BIT(DRM_COLOROP_1D_CURVE_PQ_125_EOTF);
BIT(DRM_COLOROP_1D_CURVE_PQ_125_EOTF) |
BIT(DRM_COLOROP_1D_CURVE_BT2020_INV_OETF);
const u64 amdgpu_dm_supported_shaper_tfs =
BIT(DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF) |
BIT(DRM_COLOROP_1D_CURVE_PQ_125_INV_EOTF);
BIT(DRM_COLOROP_1D_CURVE_PQ_125_INV_EOTF) |
BIT(DRM_COLOROP_1D_CURVE_BT2020_OETF);
const u64 amdgpu_dm_supported_blnd_tfs =
BIT(DRM_COLOROP_1D_CURVE_SRGB_EOTF) |
BIT(DRM_COLOROP_1D_CURVE_PQ_125_EOTF);
BIT(DRM_COLOROP_1D_CURVE_PQ_125_EOTF) |
BIT(DRM_COLOROP_1D_CURVE_BT2020_INV_OETF);
#define MAX_COLOR_PIPELINE_OPS 10