diff --git a/drivers/gpu/drm/xe/xe_guc_ct.c b/drivers/gpu/drm/xe/xe_guc_ct.c
index fd2385635962..503cf5cb5d33 100644
--- a/drivers/gpu/drm/xe/xe_guc_ct.c
+++ b/drivers/gpu/drm/xe/xe_guc_ct.c
@@ -167,6 +167,7 @@ ct_to_xe(struct xe_guc_ct *ct)
  */
 
 #define CTB_DESC_SIZE		ALIGN(sizeof(struct guc_ct_buffer_desc), SZ_2K)
+#define CTB_H2G_BUFFER_OFFSET	(CTB_DESC_SIZE * 2)
 #define CTB_H2G_BUFFER_SIZE	(SZ_4K)
 #define CTB_G2H_BUFFER_SIZE	(SZ_128K)
 #define G2H_ROOM_BUFFER_SIZE	(CTB_G2H_BUFFER_SIZE / 2)
@@ -190,7 +191,7 @@ long xe_guc_ct_queue_proc_time_jiffies(struct xe_guc_ct *ct)
 
 static size_t guc_ct_size(void)
 {
-	return 2 * CTB_DESC_SIZE + CTB_H2G_BUFFER_SIZE +
+	return CTB_H2G_BUFFER_OFFSET + CTB_H2G_BUFFER_SIZE +
 		CTB_G2H_BUFFER_SIZE;
 }
 
@@ -331,7 +332,7 @@ static void guc_ct_ctb_h2g_init(struct xe_device *xe, struct guc_ctb *h2g,
 	h2g->desc = *map;
 	xe_map_memset(xe, &h2g->desc, 0, 0, sizeof(struct guc_ct_buffer_desc));
 
-	h2g->cmds = IOSYS_MAP_INIT_OFFSET(map, CTB_DESC_SIZE * 2);
+	h2g->cmds = IOSYS_MAP_INIT_OFFSET(map, CTB_H2G_BUFFER_OFFSET);
 }
 
 static void guc_ct_ctb_g2h_init(struct xe_device *xe, struct guc_ctb *g2h,
@@ -349,7 +350,7 @@ static void guc_ct_ctb_g2h_init(struct xe_device *xe, struct guc_ctb *g2h,
 	g2h->desc = IOSYS_MAP_INIT_OFFSET(map, CTB_DESC_SIZE);
 	xe_map_memset(xe, &g2h->desc, 0, 0, sizeof(struct guc_ct_buffer_desc));
 
-	g2h->cmds = IOSYS_MAP_INIT_OFFSET(map, CTB_DESC_SIZE * 2 +
+	g2h->cmds = IOSYS_MAP_INIT_OFFSET(map, CTB_H2G_BUFFER_OFFSET +
 					    CTB_H2G_BUFFER_SIZE);
 }
 
@@ -360,7 +361,7 @@ static int guc_ct_ctb_h2g_register(struct xe_guc_ct *ct)
 	int err;
 
 	desc_addr = xe_bo_ggtt_addr(ct->bo);
-	ctb_addr = xe_bo_ggtt_addr(ct->bo) + CTB_DESC_SIZE * 2;
+	ctb_addr = xe_bo_ggtt_addr(ct->bo) + CTB_H2G_BUFFER_OFFSET;
 	size = ct->ctbs.h2g.info.size * sizeof(u32);
 
 	err = xe_guc_self_cfg64(guc,
@@ -387,7 +388,7 @@ static int guc_ct_ctb_g2h_register(struct xe_guc_ct *ct)
 	int err;
 
 	desc_addr = xe_bo_ggtt_addr(ct->bo) + CTB_DESC_SIZE;
-	ctb_addr = xe_bo_ggtt_addr(ct->bo) + CTB_DESC_SIZE * 2 +
+	ctb_addr = xe_bo_ggtt_addr(ct->bo) + CTB_H2G_BUFFER_OFFSET +
 		CTB_H2G_BUFFER_SIZE;
 	size = ct->ctbs.g2h.info.size * sizeof(u32);