1. 根目录:
2. arch
3. mips
4. include
5. asm
6. mmu.h

#ifndef __ASM_MMU_H
#define __ASM_MMU_H

typedef struct {
	unsigned long asid[NR_CPUS];
	void *vdso;
} mm_context_t;

#endif /* __ASM_MMU_H */