diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index ab3b9d38e153..ff569cc35376 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1031,7 +1031,7 @@ static bool IS_DISPLAYREG(u32 reg)
 	 * This should make it easier to transition modules over to the
 	 * new register block scheme, since we can do it incrementally.
 	 */
-	if (reg >= 0x180000)
+	if (reg >= VLV_DISPLAY_BASE)
 		return false;
 
 	if (reg >= RENDER_RING_BASE &&
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 0d1fa64b56dc..d122c93643e6 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -529,6 +529,8 @@
 #define   GFX_PSMI_GRANULARITY		(1<<10)
 #define   GFX_PPGTT_ENABLE		(1<<9)
 
+#define VLV_DISPLAY_BASE 0x180000
+
 #define SCPD0		0x0209c /* 915+ only */
 #define IER		0x020a0
 #define IIR		0x020a4