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/mm.h>
  11. #include <linux/kernel.h>
  12. #include <linux/string.h>
  13. #include <linux/types.h>
  14. #include <linux/vmalloc.h>
  15. #include <asm/setup.h>
  16. #include <asm/segment.h>
  17. #include <asm/page.h>
  18. #include <asm/pgalloc.h>
  19. #include <asm/io.h>
  20. #undef DEBUG
  21. #define VIRT_OFFSET (0x01000000)
  22. /*
  23. * Map some physical address range into the kernel address space.
  24. */
  25. void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
  26. {
  27. return (void *)(physaddr + VIRT_OFFSET);
  28. }
  29. /*
  30. * Unmap a ioremap()ed region again.
  31. */
  32. void iounmap(void *addr)
  33. {
  34. }
  35. /*
  36. * __iounmap unmaps nearly everything, so be careful
  37. * it doesn't free currently pointer/page tables anymore but it
  38. * wans't used anyway and might be added later.
  39. */
  40. void __iounmap(void *addr, unsigned long size)
  41. {
  42. }
  43. /*
  44. * Set new cache mode for some kernel address space.
  45. * The caller must push data for that range itself, if such data may already
  46. * be in the cache.
  47. */
  48. void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
  49. {
  50. }