1 files changed, 32 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
new file mode 100644
index 00000000..5f55e696
--- /dev/null
+++ b/arch/x86/include/asm/mmu.h
@@ -0,0 +1,32 @@
+#ifndef _ASM_X86_MMU_H
+#define _ASM_X86_MMU_H
+
+#include <linux/spinlock.h>
+#include <linux/mutex.h>
+
+/*
+ * The x86 doesn't have a mmu context, but
+ * we put the segment information here.
+ */
+typedef struct {
+	void *ldt;
+	int size;
+
+#ifdef CONFIG_X86_64
+	/* True if mm supports a task running in 32 bit compatibility mode. */
+	unsigned short ia32_compat;
+#endif
+
+	struct mutex lock;
+	void *vdso;
+} mm_context_t;
+
+#ifdef CONFIG_SMP
+void leave_mm(int cpu);
+#else
+static inline void leave_mm(int cpu)
+{
+}
+#endif
+
+#endif /* _ASM_X86_MMU_H */