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

/*
 * include/asm-xtensa/mmu.h
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2001 - 2005 Tensilica Inc.
 */

#ifndef _XTENSA_MMU_H
#define _XTENSA_MMU_H

#ifndef CONFIG_MMU
#include <asm-generic/mmu.h>
#else

/* Default "unsigned long" context */
typedef unsigned long mm_context_t;

#endif /* CONFIG_MMU */
#endif	/* _XTENSA_MMU_H */