diff --git a/arch/x86/include/asm/uv/uv_hub.h b/arch/x86/include/asm/uv/uv_hub.h
index 777327ef05c19f0887c0b9b089a6f71135395e94..9f4dfba33b2899a17ee672c19a4891b09ac816dc 100644
--- a/arch/x86/include/asm/uv/uv_hub.h
+++ b/arch/x86/include/asm/uv/uv_hub.h
@@ -199,6 +199,10 @@ DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
 #define SCIR_CPU_ACTIVITY	0x02	/* not idle */
 #define SCIR_CPU_HB_INTERVAL	(HZ)	/* once per second */
 
+/* Loop through all installed blades */
+#define for_each_possible_blade(bid)		\
+	for ((bid) = 0; (bid) < uv_num_possible_blades(); (bid)++)
+
 /*
  * Macros for converting between kernel virtual addresses, socket local physical
  * addresses, and UV global physical addresses.