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e62d9491 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
e2fc4d19 MS |
2 | /* |
3 | * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved. | |
e2fc4d19 | 4 | */ |
7589670f SN |
5 | #ifndef DCA_H |
6 | #define DCA_H | |
1a5aeeec MS |
7 | |
8 | #include <linux/pci.h> | |
9 | ||
7589670f SN |
10 | /* DCA Provider API */ |
11 | ||
12 | /* DCA Notifier Interface */ | |
13 | void dca_register_notify(struct notifier_block *nb); | |
14 | void dca_unregister_notify(struct notifier_block *nb); | |
15 | ||
16 | #define DCA_PROVIDER_ADD 0x0001 | |
17 | #define DCA_PROVIDER_REMOVE 0x0002 | |
18 | ||
19 | struct dca_provider { | |
7f1b358a | 20 | struct list_head node; |
2bb129eb | 21 | const struct dca_ops *ops; |
765cdb6c | 22 | struct device *cd; |
7589670f SN |
23 | int id; |
24 | }; | |
25 | ||
1a5aeeec MS |
26 | struct dca_domain { |
27 | struct list_head node; | |
28 | struct list_head dca_providers; | |
29 | struct pci_bus *pci_rc; | |
30 | }; | |
31 | ||
7589670f SN |
32 | struct dca_ops { |
33 | int (*add_requester) (struct dca_provider *, struct device *); | |
34 | int (*remove_requester) (struct dca_provider *, struct device *); | |
7f1b358a MS |
35 | u8 (*get_tag) (struct dca_provider *, struct device *, |
36 | int cpu); | |
37 | int (*dev_managed) (struct dca_provider *, struct device *); | |
7589670f SN |
38 | }; |
39 | ||
2bb129eb JL |
40 | struct dca_provider *alloc_dca_provider(const struct dca_ops *ops, |
41 | int priv_size); | |
7589670f SN |
42 | void free_dca_provider(struct dca_provider *dca); |
43 | int register_dca_provider(struct dca_provider *dca, struct device *dev); | |
1a5aeeec | 44 | void unregister_dca_provider(struct dca_provider *dca, struct device *dev); |
7589670f SN |
45 | |
46 | static inline void *dca_priv(struct dca_provider *dca) | |
47 | { | |
48 | return (void *)dca + sizeof(struct dca_provider); | |
49 | } | |
50 | ||
51 | /* Requester API */ | |
7f1b358a | 52 | #define DCA_GET_TAG_TWO_ARGS |
7589670f SN |
53 | int dca_add_requester(struct device *dev); |
54 | int dca_remove_requester(struct device *dev); | |
55 | u8 dca_get_tag(int cpu); | |
7f1b358a | 56 | u8 dca3_get_tag(struct device *dev, int cpu); |
7589670f SN |
57 | |
58 | /* internal stuff */ | |
59 | int __init dca_sysfs_init(void); | |
60 | void __exit dca_sysfs_exit(void); | |
61 | int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev); | |
62 | void dca_sysfs_remove_provider(struct dca_provider *dca); | |
63 | int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot); | |
64 | void dca_sysfs_remove_req(struct dca_provider *dca, int slot); | |
65 | ||
66 | #endif /* DCA_H */ |