/arch/arm/include/asm/mmu.h

https://bitbucket.org/sammyz/iscream_thunderc-2.6.35-rebase · C++ Header · 37 lines · 23 code · 8 blank · 6 comment · 0 complexity · 0fdf0d4b9ba90ca3e8e1d89ec9afd381 MD5 · raw file 

    

  1. #ifndef __ARM_MMU_H
    2. 

  2. #define __ARM_MMU_H
    3. 

  3. 

  4. #ifdef CONFIG_MMU
    5. 

  5. 

  6. typedef struct {
    7. 

  7. #ifdef CONFIG_CPU_HAS_ASID
    8. 

  8. 	unsigned int id;
    9. 

  9. 	spinlock_t id_lock;
    10. 

  10. #endif
    11. 

  11. 	unsigned int kvm_seq;
    12. 

  12. } mm_context_t;
    13. 

  13. 

  14. #ifdef CONFIG_CPU_HAS_ASID
    15. 

  15. #define ASID(mm)	((mm)->context.id & 255)
    16. 

  16. 

  17. /* init_mm.context.id_lock should be initialized. */
    18. 

  18. #define INIT_MM_CONTEXT(name)                                                 \
    19. 

  19. 	.context.id_lock    = __SPIN_LOCK_UNLOCKED(name.context.id_lock),
    20. 

  20. #else
    21. 

  21. #define ASID(mm)	(0)
    22. 

  22. #endif
    23. 

  23. 

  24. #else
    25. 

  25. 

  26. /*
    27. 

  27.  * From nommu.h:
    28. 

  28.  *  Copyright (C) 2002, David McCullough <davidm@snapgear.com>
    29. 

  29.  *  modified for 2.6 by Hyok S. Choi <hyok.choi@samsung.com>
    30. 

  30.  */
    31. 

  31. typedef struct {
    32. 

  32. 	unsigned long		end_brk;
    33. 

  33. } mm_context_t;
    34. 

  34. 

  35. #endif
    36. 

  36. 

  37. #endif
    38.