diff --git a/include/asm-alpha/mmu.h b/include/asm-alpha/mmu.h
new file mode 100644
index 0000000..3dc1277
--- /dev/null
+++ b/include/asm-alpha/mmu.h
@@ -0,0 +1,7 @@
+#ifndef __ALPHA_MMU_H
+#define __ALPHA_MMU_H
+
+/* The alpha MMU context is one "unsigned long" bitmap per CPU */
+typedef unsigned long mm_context_t[NR_CPUS];
+
+#endif