DSPADDR
#define DSPLINOFF(plane) DSPADDR(plane)
error->plane[i].addr = I915_READ(DSPADDR(i));
I915_WRITE_FW(DSPADDR(i9xx_plane),
I915_WRITE_FW(DSPADDR(i9xx_plane), 0);
base = I915_READ(DSPADDR(i9xx_plane));