/arch/h8300/mm/kmap.c

https://bitbucket.org/thekraven/iscream_thunderc-2.6.35 · C · 59 lines · 26 code · 8 blank · 25 comment · 0 complexity · 94a03bb9b79ee1b28ad6de2e9a574a8d MD5 · raw file 

    

  1. /*
    2. 

  2.  *  linux/arch/h8300/mm/kmap.c
    3. 

  3.  *  
    4. 

  4.  *  Based on
    5. 

  5.  *  linux/arch/m68knommu/mm/kmap.c
    6. 

  6.  *
    7. 

  7.  *  Copyright (C) 2000 Lineo, <davidm@snapgear.com>
    8. 

  8.  *  Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com>
    9. 

  9.  */
    10. 

  10. 

  11. #include <linux/mm.h>
    12. 

  12. #include <linux/kernel.h>
    13. 

  13. #include <linux/string.h>
    14. 

  14. #include <linux/types.h>
    15. 

  15. #include <linux/vmalloc.h>
    16. 

  16. 

  17. #include <asm/setup.h>
    18. 

  18. #include <asm/segment.h>
    19. 

  19. #include <asm/page.h>
    20. 

  20. #include <asm/pgalloc.h>
    21. 

  21. #include <asm/io.h>
    22. 

  22. #include <asm/system.h>
    23. 

  23. 

  24. #undef DEBUG
    25. 

  25. 

  26. #define VIRT_OFFSET (0x01000000)
    27. 

  27. 

  28. /*
    29. 

  29.  * Map some physical address range into the kernel address space.
    30. 

  30.  */
    31. 

  31. void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
    32. 

  32. {
    33. 

  33. 	return (void *)(physaddr + VIRT_OFFSET);
    34. 

  34. }
    35. 

  35. 

  36. /*
    37. 

  37.  * Unmap a ioremap()ed region again.
    38. 

  38.  */
    39. 

  39. void iounmap(void *addr)
    40. 

  40. {
    41. 

  41. }
    42. 

  42. 

  43. /*
    44. 

  44.  * __iounmap unmaps nearly everything, so be careful
    45. 

  45.  * it doesn't free currently pointer/page tables anymore but it
    46. 

  46.  * wans't used anyway and might be added later.
    47. 

  47.  */
    48. 

  48. void __iounmap(void *addr, unsigned long size)
    49. 

  49. {
    50. 

  50. }
    51. 

  51. 

  52. /*
    53. 

  53.  * Set new cache mode for some kernel address space.
    54. 

  54.  * The caller must push data for that range itself, if such data may already
    55. 

  55.  * be in the cache.
    56. 

  56.  */
    57. 

  57. void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
    58. 

  58. {
    59. 

  59. }
    60.