radeon: add square-tiling flag

include/drm/radeon_drm.h

@@ -808,6 +808,7 @@ struct drm_radeon_gem_create {
 #define RADEON_TILING_SWAP_32BIT  0x8
 #define RADEON_TILING_SURFACE     0x10 /* this object requires a surface
 					* when mapped - i.e. front buffer */
+#define RADEON_TILING_MICRO_SQUARE 0x20
 
 struct drm_radeon_gem_set_tiling {
 	uint32_t	handle;

radeon/radeon_bo.h

@@ -36,6 +36,7 @@
 /* bo object */
 #define RADEON_BO_FLAGS_MACRO_TILE  1
 #define RADEON_BO_FLAGS_MICRO_TILE  2
+#define RADEON_BO_FLAGS_MICRO_TILE_SQUARE 0x20
 
 struct radeon_bo_manager;
 struct radeon_cs;