kmap.c 1.2 KB

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  1. /*
  2. * linux/arch/h8300/mm/kmap.c
  3. *
  4. * Based on
  5. * linux/arch/m68knommu/mm/kmap.c
  6. *
  7. * Copyright (C) 2000 Lineo, <davidm@snapgear.com>
  8. * Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com>
  9. */
  10. #include <linux/config.h>
  11. #include <linux/mm.h>
  12. #include <linux/kernel.h>
  13. #include <linux/string.h>
  14. #include <linux/types.h>
  15. #include <linux/slab.h>
  16. #include <linux/vmalloc.h>
  17. #include <asm/setup.h>
  18. #include <asm/segment.h>
  19. #include <asm/page.h>
  20. #include <asm/pgalloc.h>
  21. #include <asm/io.h>
  22. #include <asm/system.h>
  23. #undef DEBUG
  24. /*
  25. * Map some physical address range into the kernel address space.
  26. */
  27. void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
  28. {
  29. return (void *)physaddr;
  30. }
  31. /*
  32. * Unmap a ioremap()ed region again.
  33. */
  34. void iounmap(void *addr)
  35. {
  36. }
  37. /*
  38. * __iounmap unmaps nearly everything, so be careful
  39. * it doesn't free currently pointer/page tables anymore but it
  40. * wans't used anyway and might be added later.
  41. */
  42. void __iounmap(void *addr, unsigned long size)
  43. {
  44. }
  45. /*
  46. * Set new cache mode for some kernel address space.
  47. * The caller must push data for that range itself, if such data may already
  48. * be in the cache.
  49. */
  50. void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
  51. {
  52. }