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dca.h

dca.h 1.6 KB
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  1. #ifndef DCA_H
    2. 

  2. #define DCA_H
    3. 

  3. /* DCA Provider API */
    4. 

  4. 

  5. /* DCA Notifier Interface */
    6. 

  6. void dca_register_notify(struct notifier_block *nb);
    7. 

  7. void dca_unregister_notify(struct notifier_block *nb);
    8. 

  8. 

  9. #define DCA_PROVIDER_ADD     0x0001
    10. 

  10. #define DCA_PROVIDER_REMOVE  0x0002
    11. 

  11. 

  12. struct dca_provider {
    13. 

  13. 	struct list_head	node;
    14. 

  14. 	struct dca_ops		*ops;
    15. 

  15. 	struct device 		*cd;
    16. 

  16. 	int			 id;
    17. 

  17. };
    18. 

  18. 

  19. struct dca_ops {
    20. 

  20. 	int	(*add_requester)    (struct dca_provider *, struct device *);
    21. 

  21. 	int	(*remove_requester) (struct dca_provider *, struct device *);
    22. 

  22. 	u8	(*get_tag)	    (struct dca_provider *, struct device *,
    23. 

  23. 				     int cpu);
    24. 

  24. 	int	(*dev_managed)      (struct dca_provider *, struct device *);
    25. 

  25. };
    26. 

  26. 

  27. struct dca_provider *alloc_dca_provider(struct dca_ops *ops, int priv_size);
    28. 

  28. void free_dca_provider(struct dca_provider *dca);
    29. 

  29. int register_dca_provider(struct dca_provider *dca, struct device *dev);
    30. 

  30. void unregister_dca_provider(struct dca_provider *dca);
    31. 

  31. 

  32. static inline void *dca_priv(struct dca_provider *dca)
    33. 

  33. {
    34. 

  34. 	return (void *)dca + sizeof(struct dca_provider);
    35. 

  35. }
    36. 

  36. 

  37. /* Requester API */
    38. 

  38. #define DCA_GET_TAG_TWO_ARGS
    39. 

  39. int dca_add_requester(struct device *dev);
    40. 

  40. int dca_remove_requester(struct device *dev);
    41. 

  41. u8 dca_get_tag(int cpu);
    42. 

  42. u8 dca3_get_tag(struct device *dev, int cpu);
    43. 

  43. 

  44. /* internal stuff */
    45. 

  45. int __init dca_sysfs_init(void);
    46. 

  46. void __exit dca_sysfs_exit(void);
    47. 

  47. int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev);
    48. 

  48. void dca_sysfs_remove_provider(struct dca_provider *dca);
    49. 

  49. int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot);
    50. 

  50. void dca_sysfs_remove_req(struct dca_provider *dca, int slot);
    51. 

  51. 

  52. #endif /* DCA_H */
    53.