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

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *  arch/arm/include/asm/page-nommu.h
   4  *
   5  *  Copyright (C) 2004 Hyok S. Choi
   6  */
   7
   8 #ifndef _ASMARM_PAGE_NOMMU_H
   9 #define _ASMARM_PAGE_NOMMU_H
  10
  11 #define clear_page(page)        memset((page), 0, PAGE_SIZE)
  12 #define copy_page(to,from)      memcpy((to), (from), PAGE_SIZE)
  13
  14 #define clear_user_page(page, vaddr, pg)        clear_page(page)
  15 #define copy_user_page(to, from, vaddr, pg)     copy_page(to, from)
  16
  17 /*
  18  * These are used to make use of C type-checking..
  19  */
  20 typedef unsigned long pte_t;
  21 typedef unsigned long pmd_t;
  22 typedef unsigned long pgd_t[2];
  23 typedef unsigned long pgprot_t;
  24
  25 #define pte_val(x)      (x)
  26 #define pmd_val(x)      (x)
  27 #define pgd_val(x)      ((x)[0])
  28 #define pgprot_val(x)   (x)
  29
  30 #define __pte(x)        (x)
  31 #define __pmd(x)        (x)
  32 #define __pgprot(x)     (x)
  33
  34 #endif