page.h

uboot详细解读可用启动引导LINUX2.6内核

/* page.h:  Various defines and such for MMU operations on the Sparc for
 *          the Linux kernel.
 *
 * Copyright (C) 1995 David S. Miller ([e-mail])
 * Copyright (C) 2007 Daniel Hellstrom ([e-mail])
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 *
 */

#ifndef _SPARC_PAGE_H
#define _SPARC_PAGE_H

#include <linux/config.h>
#ifdef CONFIG_SUN4
#define PAGE_SHIFT   13
#else
#define PAGE_SHIFT   12
#endif

#ifndef __ASSEMBLY__
/* I have my suspicions... -DaveM */
#define PAGE_SIZE    (1UL << PAGE_SHIFT)
#else
#define PAGE_SIZE    (1 << PAGE_SHIFT)
#endif

#define PAGE_MASK    (~(PAGE_SIZE-1))

#endif				/* _SPARC_PAGE_H */