1 #ifndef DCA_H 2 #define DCA_H 3 /* DCA Provider API */ 4 5 /* DCA Notifier Interface */ 6 void dca_register_notify(struct notifier_block *nb); 7 void dca_unregister_notify(struct notifier_block *nb); 8 9 #define DCA_PROVIDER_ADD 0x0001 10 #define DCA_PROVIDER_REMOVE 0x0002 11 12 struct dca_provider { 13 struct dca_ops *ops; 14 struct device *cd; 15 int id; 16 }; 17 18 struct dca_ops { 19 int (*add_requester) (struct dca_provider *, struct device *); 20 int (*remove_requester) (struct dca_provider *, struct device *); 21 u8 (*get_tag) (struct dca_provider *, int cpu); 22 }; 23 24 struct dca_provider *alloc_dca_provider(struct dca_ops *ops, int priv_size); 25 void free_dca_provider(struct dca_provider *dca); 26 int register_dca_provider(struct dca_provider *dca, struct device *dev); 27 void unregister_dca_provider(struct dca_provider *dca); 28 29 static inline void *dca_priv(struct dca_provider *dca) 30 { 31 return (void *)dca + sizeof(struct dca_provider); 32 } 33 34 /* Requester API */ 35 int dca_add_requester(struct device *dev); 36 int dca_remove_requester(struct device *dev); 37 u8 dca_get_tag(int cpu); 38 39 /* internal stuff */ 40 int __init dca_sysfs_init(void); 41 void __exit dca_sysfs_exit(void); 42 int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev); 43 void dca_sysfs_remove_provider(struct dca_provider *dca); 44 int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot); 45 void dca_sysfs_remove_req(struct dca_provider *dca, int slot); 46 47 #endif /* DCA_H */ 48