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
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