CUR_WM
intel_de_write_dsb(display, dsb, CUR_WM(pipe, level),
val = intel_de_read(display, CUR_WM(pipe, level));
MMIO_F(CUR_WM(PIPE_A, 0), 4 * 8);
MMIO_F(CUR_WM(PIPE_B, 0), 4 * 8);
MMIO_F(CUR_WM(PIPE_C, 0), 4 * 8);