CUR_FBC_CTL
intel_de_write_dsb(display, dsb, CUR_FBC_CTL(display, pipe), fbc_ctl);
MMIO_D(CUR_FBC_CTL(display, PIPE_A));
MMIO_D(CUR_FBC_CTL(display, PIPE_B));
MMIO_D(CUR_FBC_CTL(display, PIPE_C));