LXR linux/arch/arm/include/asm/page-nommu.h

   1/*
   2 *  arch/arm/include/asm/page-nommu.h
   3 *
   4 *  Copyright (C) 2004 Hyok S. Choi
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License version 2 as
   8 * published by the Free Software Foundation.
   9 */
  10
  11#ifndef _ASMARM_PAGE_NOMMU_H
  12#define _ASMARM_PAGE_NOMMU_H
  13
  14#define clear_page(page)        memset((page), 0, PAGE_SIZE)
  15#define copy_page(to,from)      memcpy((to), (from), PAGE_SIZE)
  16
  17#define clear_user_page(page, vaddr, pg)        clear_page(page)
  18#define copy_user_page(to, from, vaddr, pg)     copy_page(to, from)
  19
  20/*
  21 * These are used to make use of C type-checking..
  22 */
  23typedef unsigned long pte_t;
  24typedef unsigned long pmd_t;
  25typedef unsigned long pgd_t[2];
  26typedef unsigned long pgprot_t;
  27
  28#define pte_val(x)      (x)
  29#define pmd_val(x)      (x)
  30#define pgd_val(x)      ((x)[0])
  31#define pgprot_val(x)   (x)
  32
  33#define __pte(x)        (x)
  34#define __pmd(x)        (x)
  35#define __pgprot(x)     (x)
  36
  37#endif
  38