1. 根目录:
2. arch
3. powerpc
4. include
5. asm
6. kmap_types.h

#ifndef _ASM_POWERPC_KMAP_TYPES_H
#define _ASM_POWERPC_KMAP_TYPES_H

#ifdef __KERNEL__

/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */

#define KM_TYPE_NR 16

#endif	/* __KERNEL__ */
#endif	/* _ASM_POWERPC_KMAP_TYPES_H */