diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 8494fd4..d0286cb 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3476,6 +3476,10 @@ enum {
 #define _VSYNC_A	0x60014
 #define _EXITLINE_A	0x60018
 #define _PIPEASRC	0x6001c
+#define   PIPESRC_WIDTH_MASK	REG_GENMASK(31, 16)
+#define   PIPESRC_WIDTH(w)	REG_FIELD_PREP(PIPESRC_WIDTH_MASK, (w))
+#define   PIPESRC_HEIGHT_MASK	REG_GENMASK(15, 0)
+#define   PIPESRC_HEIGHT(h)	REG_FIELD_PREP(PIPESRC_HEIGHT_MASK, (h))
 #define _BCLRPAT_A	0x60020
 #define _VSYNCSHIFT_A	0x60028
 #define _PIPE_MULT_A	0x6002c