diff --git a/hw/display/xlnx_dp.c b/hw/display/xlnx_dp.c
index 9bb781e312..0378570459 100644
--- a/hw/display/xlnx_dp.c
+++ b/hw/display/xlnx_dp.c
@@ -1219,19 +1219,22 @@ static void xlnx_dp_init(Object *obj)
     SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
     XlnxDPState *s = XLNX_DP(obj);
 
-    memory_region_init(&s->container, obj, TYPE_XLNX_DP, 0xC050);
+    memory_region_init(&s->container, obj, TYPE_XLNX_DP, DP_CONTAINER_SIZE);
 
     memory_region_init_io(&s->core_iomem, obj, &dp_ops, s, TYPE_XLNX_DP
-                          ".core", 0x3AF);
-    memory_region_add_subregion(&s->container, 0x0000, &s->core_iomem);
+                          ".core", sizeof(s->core_registers));
+    memory_region_add_subregion(&s->container, DP_CORE_REG_OFFSET,
+                                &s->core_iomem);
 
     memory_region_init_io(&s->vblend_iomem, obj, &vblend_ops, s, TYPE_XLNX_DP
-                          ".v_blend", 0x1DF);
-    memory_region_add_subregion(&s->container, 0xA000, &s->vblend_iomem);
+                          ".v_blend", sizeof(s->vblend_registers));
+    memory_region_add_subregion(&s->container, DP_VBLEND_REG_OFFSET,
+                                &s->vblend_iomem);
 
     memory_region_init_io(&s->avbufm_iomem, obj, &avbufm_ops, s, TYPE_XLNX_DP
-                          ".av_buffer_manager", 0x238);
-    memory_region_add_subregion(&s->container, 0xB000, &s->avbufm_iomem);
+                          ".av_buffer_manager", sizeof(s->avbufm_registers));
+    memory_region_add_subregion(&s->container, DP_AVBUF_REG_OFFSET,
+                                &s->avbufm_iomem);
 
     memory_region_init_io(&s->audio_iomem, obj, &audio_ops, s, TYPE_XLNX_DP
                           ".audio", sizeof(s->audio_registers));
diff --git a/include/hw/display/xlnx_dp.h b/include/hw/display/xlnx_dp.h
index 8ab4733bb8..1ef5a89ee7 100644
--- a/include/hw/display/xlnx_dp.h
+++ b/include/hw/display/xlnx_dp.h
@@ -39,10 +39,15 @@
 #define AUD_CHBUF_MAX_DEPTH                 (32 * KiB)
 #define MAX_QEMU_BUFFER_SIZE                (4 * KiB)
 
-#define DP_CORE_REG_ARRAY_SIZE              (0x3AF >> 2)
+#define DP_CORE_REG_OFFSET                  (0x0000)
+#define DP_CORE_REG_ARRAY_SIZE              (0x3B0 >> 2)
+#define DP_AVBUF_REG_OFFSET                 (0xB000)
 #define DP_AVBUF_REG_ARRAY_SIZE             (0x238 >> 2)
-#define DP_VBLEND_REG_ARRAY_SIZE            (0x1DF >> 2)
+#define DP_VBLEND_REG_OFFSET                (0xA000)
+#define DP_VBLEND_REG_ARRAY_SIZE            (0x1E0 >> 2)
+#define DP_AUDIO_REG_OFFSET                 (0xC000)
 #define DP_AUDIO_REG_ARRAY_SIZE             (0x50 >> 2)
+#define DP_CONTAINER_SIZE                   (0xC050)
 
 struct PixmanPlane {
     pixman_format_code_t format;