arch/sparc/include/asm/page.h

   1 /* page.h:  Various defines and such for MMU operations on the Sparc for
   2  *          the Linux kernel.
   3  *
   4  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
   5  * Copyright (C) 2007 Daniel Hellstrom (daniel@gaisler.com)
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  *
  22  */
  23
  24 #ifndef _SPARC_PAGE_H
  25 #define _SPARC_PAGE_H
  26
  27 #include <linux/config.h>
  28 #ifdef CONFIG_SUN4
  29 #define PAGE_SHIFT   13
  30 #else
  31 #define PAGE_SHIFT   12
  32 #endif
  33
  34 #ifndef __ASSEMBLY__
  35 /* I have my suspicions... -DaveM */
  36 #define PAGE_SIZE    (1UL << PAGE_SHIFT)
  37 #else
  38 #define PAGE_SIZE    (1 << PAGE_SHIFT)
  39 #endif
  40
  41 #define PAGE_MASK    (~(PAGE_SIZE-1))
  42
  43 #endif                          /* _SPARC_PAGE_H */