From db971856bbe0263d0ba78d641ea66d4fcdfc8fc3 Mon Sep 17 00:00:00 2001 From: Alex Hung Date: Fri, 14 Nov 2025 17:02:10 -0700 Subject: drm/colorop: Add 3D LUT support to color pipeline It is to be used to enable HDR by allowing userpace to create and pass 3D LUTs to kernel and hardware. new drm_colorop_type: DRM_COLOROP_3D_LUT. Reviewed-by: Simon Ser Signed-off-by: Alex Hung Reviewed-by: Daniel Stone Reviewed-by: Melissa Wen Reviewed-by: Sebastian Wick Signed-off-by: Simon Ser Link: https://patch.msgid.link/20251115000237.3561250-46-alex.hung@amd.com --- drivers/gpu/drm/drm_atomic_uapi.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/gpu/drm/drm_atomic_uapi.c') diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index 64e49338e284..7320db4b8489 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -705,6 +705,10 @@ static int drm_atomic_color_set_data_property(struct drm_colorop *colorop, case DRM_COLOROP_CTM_3X4: size = sizeof(struct drm_color_ctm_3x4); break; + case DRM_COLOROP_3D_LUT: + size = colorop->size * colorop->size * colorop->size * + sizeof(struct drm_color_lut32); + break; default: /* should never get here */ return -EINVAL; @@ -732,6 +736,8 @@ static int drm_atomic_colorop_set_property(struct drm_colorop *colorop, state->curve_1d_type = val; } else if (property == colorop->multiplier_property) { state->multiplier = val; + } else if (property == colorop->lut3d_interpolation_property) { + colorop->lut3d_interpolation = val; } else if (property == colorop->data_property) { return drm_atomic_color_set_data_property(colorop, state, property, val); @@ -763,6 +769,8 @@ drm_atomic_colorop_get_property(struct drm_colorop *colorop, *val = state->multiplier; else if (property == colorop->size_property) *val = colorop->size; + else if (property == colorop->lut3d_interpolation_property) + *val = colorop->lut3d_interpolation; else if (property == colorop->data_property) *val = (state->data) ? state->data->base.id : 0; else -- cgit