DISP_TILED
if (val & DISP_TILED) {
dspcntr |= DISP_TILED;
dspcntr &= ~DISP_TILED;
old_ctl &= ~DISP_TILED;
new_ctl &= ~DISP_TILED;
plane->tiled = val & DISP_TILED;