diff --git a/include/asm-h8300/mmu_context.h b/include/asm-h8300/mmu_context.h
new file mode 100644
index 0000000..23b555b
--- /dev/null
+++ b/include/asm-h8300/mmu_context.h
@@ -0,0 +1,32 @@
+#ifndef __H8300_MMU_CONTEXT_H
+#define __H8300_MMU_CONTEXT_H
+
+#include <linux/config.h>
+#include <asm/setup.h>
+#include <asm/page.h>
+#include <asm/pgalloc.h>
+
+static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+{
+}
+
+extern inline int
+init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+{
+	// mm->context = virt_to_phys(mm->pgd);
+	return(0);
+}
+
+#define destroy_context(mm)		do { } while(0)
+#define deactivate_mm(tsk,mm)           do { } while(0)
+
+static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
+{
+}
+
+extern inline void activate_mm(struct mm_struct *prev_mm,
+			       struct mm_struct *next_mm)
+{
+}
+
+#endif