PF_WIN_SZ
intel_de_write_fw(display, PF_WIN_SZ(pipe),
intel_de_write_fw(display, PF_WIN_SZ(pipe), 0);
size = intel_de_read(display, PF_WIN_SZ(crtc->pipe));
MMIO_D(PF_WIN_SZ(PIPE_A));
MMIO_D(PF_WIN_SZ(PIPE_B));
MMIO_D(PF_WIN_SZ(PIPE_C));