MI_FLUSH_DW_CCS
cmd |= MI_FLUSH_DW_CCS;
cs = i915_flush_dw(cs, MI_FLUSH_DW_LLC | MI_FLUSH_DW_CCS);
cs = i915_flush_dw(cs, MI_FLUSH_DW_LLC | MI_FLUSH_DW_CCS);
flush_flags |= MI_FLUSH_DW_CCS;
flush_flags = MI_FLUSH_DW_CCS;
flush_flags = MI_FLUSH_DW_CCS;