Insert a fixed matrix colorop as the first operation in the amdgpu color pipeline, before the existing DEGAM 1D curve. This allows userspace to select YUV-to-RGB conversion via the color pipeline for YCbCr framebuffers.
The fixed matrix colorop advertises support for all six YUV-to-RGB conversion presets: - YUV601/709/2020 full-range to RGB - YUV601/709/2020 limited-range to RGB Assisted-by: Claude:claude-opus-4.6 Signed-off-by: Harry Wentland <[email protected]> Reviewed-by: Alex Hung <[email protected]> Tested-by: Robert Mader <[email protected]> --- .../amd/display/amdgpu_dm/amdgpu_dm_colorop.c | 27 ++++++++++++++++++- .../amd/display/amdgpu_dm/amdgpu_dm_colorop.h | 1 + 2 files changed, 27 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c index 056a76b88f43..1ed12cdce317 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.c @@ -55,6 +55,14 @@ const u64 amdgpu_dm_supported_blnd_tfs = BIT(DRM_COLOROP_1D_CURVE_GAMMA22); EXPORT_IF_KUNIT(amdgpu_dm_supported_blnd_tfs); +const u64 amdgpu_dm_supported_fm = + BIT(DRM_COLOROP_FM_YCBCR601_FULL_RGB) | + BIT(DRM_COLOROP_FM_YCBCR601_LIMITED_RGB) | + BIT(DRM_COLOROP_FM_YCBCR709_FULL_RGB) | + BIT(DRM_COLOROP_FM_YCBCR709_LIMITED_RGB) | + BIT(DRM_COLOROP_FM_YCBCR2020_NC_FULL_RGB) | + BIT(DRM_COLOROP_FM_YCBCR2020_NC_LIMITED_RGB); + #define MAX_COLOR_PIPELINE_OPS 10 #define LUT3D_SIZE 17 @@ -73,6 +81,23 @@ amdgpu_dm_build_default_pipeline(struct drm_device *dev, struct drm_plane *plane memset(ops, 0, sizeof(ops)); + /* Fixed Matrix (YUV to RGB) */ + ops[i] = kzalloc_obj(*ops[0]); + if (!ops[i]) { + ret = -ENOMEM; + goto cleanup; + } + + ret = drm_plane_colorop_fixed_matrix_init(dev, ops[i], plane, &dm_colorop_funcs, + amdgpu_dm_supported_fm, + DRM_COLOROP_FLAG_ALLOW_BYPASS); + if (ret) + goto cleanup; + + list->type = ops[i]->base.id; + + i++; + /* 1D curve - DEGAM TF */ ops[i] = kzalloc_obj(*ops[0]); if (!ops[i]) { @@ -86,7 +111,7 @@ amdgpu_dm_build_default_pipeline(struct drm_device *dev, struct drm_plane *plane if (ret) goto cleanup; - list->type = ops[i]->base.id; + drm_colorop_set_next_property(ops[i - 1], ops[i]); i++; diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.h index 77364d954d3b..7802efa5312d 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.h +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_colorop.h @@ -30,6 +30,7 @@ extern const u64 amdgpu_dm_supported_degam_tfs; extern const u64 amdgpu_dm_supported_shaper_tfs; extern const u64 amdgpu_dm_supported_blnd_tfs; +extern const u64 amdgpu_dm_supported_fm; int amdgpu_dm_initialize_default_pipeline(struct drm_plane *plane, struct drm_prop_enum_list *list); -- 2.55.0
