1#ifndef __x86_64_MMU_H
2#define __x86_64_MMU_H
3
4#include <linux/spinlock.h>
5#include <asm/semaphore.h>
6
7/*
8 * The x86_64 doesn't have a mmu context, but
9 * we put the segment information here.
10 *
11 * cpu_vm_mask is used to optimize ldt flushing.
12 */
13typedef struct {
14	void *ldt;
15	rwlock_t ldtlock;
16	int size;
17	struct semaphore sem;
18} mm_context_t;
19
20#endif
21