Commit ec891d8b authored by Harry Wentland's avatar Harry Wentland Committed by Simon Ser
Browse files

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



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: default avatarAlex Hung <alex.hung@amd.com>
Signed-off-by: default avatarHarry Wentland <harry.wentland@amd.com>
Reviewed-by: default avatarDaniel Stone <daniels@collabora.com>
Signed-off-by: default avatarSimon Ser <contact@emersion.fr>
Link: https://patch.msgid.link/20251115000237.3561250-35-alex.hung@amd.com
parent a355b3d6

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c

+3 −0
Original line number Diff line number Diff line
@@ -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;

	}

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c

+6 −3
Original line number Diff line number Diff line
@@ -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