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drm/colorop: Add 3D LUT support to color pipeline

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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 <contact@emersion.fr>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: https://patch.msgid.link/20251115000237.3561250-46-alex.hung@amd.com
This commit is contained in:
Alex Hung
2025-11-14 17:02:10 -07:00
committed by Simon Ser
parent 2468963482
commit db971856bb
5 changed files with 143 additions and 0 deletions
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6
drivers/gpu/drm/drm_atomic.c
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@@ -807,6 +807,12 @@ static void drm_atomic_colorop_print_state(struct drm_printer *p,
case DRM_COLOROP_MULTIPLIER:
drm_printf(p, "\tmultiplier=%llu\n", state->multiplier);
break;
case DRM_COLOROP_3D_LUT:
drm_printf(p, "\tsize=%d\n", colorop->size);
drm_printf(p, "\tinterpolation=%s\n",
drm_get_colorop_lut3d_interpolation_name(colorop->lut3d_interpolation));
drm_printf(p, "\tdata blob id=%d\n", state->data ? state->data->base.id : 0);
break;
default:
break;
}