1. 根目录:
2. arch
3. m32r
4. include
5. asm
6. mmu.h

#ifndef _ASM_M32R_MMU_H
#define _ASM_M32R_MMU_H

#if !defined(CONFIG_MMU)

typedef struct {
	unsigned long		end_brk;
} mm_context_t;

#else /* CONFIG_MMU */

/* Default "unsigned long" context */
#ifndef CONFIG_SMP
typedef unsigned long mm_context_t;
#else
typedef unsigned long mm_context_t[NR_CPUS];
#endif

#endif /* CONFIG_MMU */

#endif /* _ASM_M32R_MMU_H */