diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index 43a66f5..a7a111d 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -87,6 +87,10 @@
 	depends on COMPAT && SYSVIPC
 	default y
 
+config GENERIC_HARDIRQS
+	bool
+	default y
+
 menu "General machine setup"
 
 config SMP