pg-nommu.c 712 B

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  1. /*
  2. * arch/sh/mm/pg-nommu.c
  3. *
  4. * clear_page()/copy_page() implementation for MMUless SH.
  5. *
  6. * Copyright (C) 2003 Paul Mundt
  7. *
  8. * This file is subject to the terms and conditions of the GNU General Public
  9. * License. See the file "COPYING" in the main directory of this archive
  10. * for more details.
  11. */
  12. #include <linux/init.h>
  13. #include <linux/kernel.h>
  14. #include <linux/string.h>
  15. #include <asm/page.h>
  16. static void copy_page_nommu(void *to, void *from)
  17. {
  18. memcpy(to, from, PAGE_SIZE);
  19. }
  20. static void clear_page_nommu(void *to)
  21. {
  22. memset(to, 0, PAGE_SIZE);
  23. }
  24. static int __init pg_nommu_init(void)
  25. {
  26. copy_page = copy_page_nommu;
  27. clear_page = clear_page_nommu;
  28. return 0;
  29. }
  30. subsys_initcall(pg_nommu_init);