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arch
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x86
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include
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asm
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iommu.h

iommu.h 1.2 KB
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  1. #ifndef _ASM_X86_IOMMU_H
    2. 

  2. #define _ASM_X86_IOMMU_H
    3. 

  3. 

  4. extern void pci_iommu_shutdown(void);
    5. 

  5. extern void no_iommu_init(void);
    6. 

  6. extern struct dma_mapping_ops nommu_dma_ops;
    7. 

  7. extern int force_iommu, no_iommu;
    8. 

  8. extern int iommu_detected;
    9. 

  9. extern int dmar_disabled;
    10. 

  10. extern int forbid_dac;
    11. 

  11. 

  12. extern unsigned long iommu_nr_pages(unsigned long addr, unsigned long len);
    13. 

  13. 

  14. /* 10 seconds */
    15. 

  15. #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
    16. 

  16. 

  17. #ifdef CONFIG_GART_IOMMU
    18. 

  18. extern int gart_iommu_aperture;
    19. 

  19. extern int gart_iommu_aperture_allowed;
    20. 

  20. extern int gart_iommu_aperture_disabled;
    21. 

  21. 

  22. extern void early_gart_iommu_check(void);
    23. 

  23. extern void gart_iommu_init(void);
    24. 

  24. extern void gart_iommu_shutdown(void);
    25. 

  25. extern void __init gart_parse_options(char *);
    26. 

  26. extern void gart_iommu_hole_init(void);
    27. 

  27. 

  28. #else
    29. 

  29. #define gart_iommu_aperture            0
    30. 

  30. #define gart_iommu_aperture_allowed    0
    31. 

  31. #define gart_iommu_aperture_disabled   1
    32. 

  32. 

  33. static inline void early_gart_iommu_check(void)
    34. 

  34. {
    35. 

  35. }
    36. 

  36. static inline void gart_iommu_init(void)
    37. 

  37. {
    38. 

  38. }
    39. 

  39. static inline void gart_iommu_shutdown(void)
    40. 

  40. {
    41. 

  41. }
    42. 

  42. static inline void gart_parse_options(char *options)
    43. 

  43. {
    44. 

  44. }
    45. 

  45. static inline void gart_iommu_hole_init(void)
    46. 

  46. {
    47. 

  47. }
    48. 

  48. #endif
    49. 

  49. 

  50. #endif /* _ASM_X86_IOMMU_H */
    51.