drm/xe: Extract non mapped regions out of GuC CTB into its own struct.

No functional change here. The goal is to have a clear split between
the mapped portions of the CTB and the static information, so we can
easily capture snapshots that will be used for later read out with
the devcoredump infrastructure.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>

drivers/gpu/drm/xe/xe_guc_ct_types.h

@@ -19,13 +19,9 @@
 struct xe_bo;
 
 /**
- * struct guc_ctb - GuC command transport buffer (CTB)
+ * struct guc_ctb_info - GuC command transport buffer (CTB) info
  */
-struct guc_ctb {
-	/** @desc: dma buffer map for CTB descriptor */
-	struct iosys_map desc;
-	/** @cmds: dma buffer map for CTB commands */
-	struct iosys_map cmds;
+struct guc_ctb_info {
 	/** @size: size of CTB commands (DW) */
 	u32 size;
 	/** @resv_space: reserved space of CTB commands (DW) */
@@ -40,6 +36,18 @@ struct guc_ctb {
 	bool broken;
 };
 
+/**
+ * struct guc_ctb - GuC command transport buffer (CTB)
+ */
+struct guc_ctb {
+	/** @desc: dma buffer map for CTB descriptor */
+	struct iosys_map desc;
+	/** @cmds: dma buffer map for CTB commands */
+	struct iosys_map cmds;
+	/** @info: CTB info */
+	struct guc_ctb_info info;
+};
+
 /**
  * struct xe_guc_ct - GuC command transport (CT) layer
  *