drm/i915:  Add support for the G33, Q33, and Q35 chipsets.

These require that the status page be referenced by a pointer in GTT, rather
than phsyical memory.  So, we have the X Server allocate that memory and tell
us the address, instead.

Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/i915_drm.h b/drivers/char/drm/i915_drm.h
index 96a46888..7b7b68b9 100644
--- a/drivers/char/drm/i915_drm.h
+++ b/drivers/char/drm/i915_drm.h
@@ -142,6 +142,7 @@
 #define DRM_I915_SET_VBLANK_PIPE	0x0d
 #define DRM_I915_GET_VBLANK_PIPE	0x0e
 #define DRM_I915_VBLANK_SWAP	0x0f
+#define DRM_I915_HWS_ADDR	0x11
 
 #define DRM_IOCTL_I915_INIT		DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
 #define DRM_IOCTL_I915_FLUSH		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
@@ -262,4 +263,8 @@
 	unsigned int sequence;
 } drm_i915_vblank_swap_t;
 
+typedef struct drm_i915_hws_addr {
+	uint64_t addr;
+} drm_i915_hws_addr_t;
+
 #endif				/* _I915_DRM_H_ */