XY_BLOCK_COPY_BLT and XY_FAST_COLOR_BLT instruction supports AUX_CCS surface mode. Stencil buffer compression is stencil data with CCS so we can easily support that on blitter engine. Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26167>