diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 786491f..153337f 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -40,6 +40,19 @@
 	bool
 	default n
 
+config GENERIC_HARDIRQS
+	bool
+	default y
+
+config GENERIC_IRQ_PROBE
+	bool
+	default y
+
+config AUTO_IRQ_AFFINITY
+	bool
+	depends on SMP
+	default y
+
 source "init/Kconfig"