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Diffstat (limited to 'arch/x86/include/asm/mmu.h')
-rw-r--r--arch/x86/include/asm/mmu.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
new file mode 100644
index 00000000000..80a1dee5bea
--- /dev/null
+++ b/arch/x86/include/asm/mmu.h
@@ -0,0 +1,26 @@
+#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;
+ 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 */