projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| e2fc4d19 MS |
1 | /* |
| 2 | * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify it | |
| 5 | * under the terms of the GNU General Public License as published by the Free | |
| 6 | * Software Foundation; either version 2 of the License, or (at your option) | |
| 7 | * any later version. | |
| 8 | * | |
| 9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 12 | * more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public License along with | |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., 59 | |
| 16 | * Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
| 17 | * | |
| 18 | * The full GNU General Public License is included in this distribution in the | |
| 19 | * file called COPYING. | |
| 20 | */ | |
| 7589670f SN |
21 | #ifndef DCA_H |
| 22 | #define DCA_H | |
| 1a5aeeec MS |
23 | |
| 24 | #include <linux/pci.h> | |
| 25 | ||
| 7589670f SN |
26 | /* DCA Provider API */ |
| 27 | ||
| 28 | /* DCA Notifier Interface */ | |
| 29 | void dca_register_notify(struct notifier_block *nb); | |
| 30 | void dca_unregister_notify(struct notifier_block *nb); | |
| 31 | ||
| 32 | #define DCA_PROVIDER_ADD 0x0001 | |
| 33 | #define DCA_PROVIDER_REMOVE 0x0002 | |
| 34 | ||
| 35 | struct dca_provider { | |
| 7f1b358a | 36 | struct list_head node; |
| 2bb129eb | 37 | const struct dca_ops *ops; |
| 765cdb6c | 38 | struct device *cd; |
| 7589670f SN |
39 | int id; |
| 40 | }; | |
| 41 | ||
| 1a5aeeec MS |
42 | struct dca_domain { |
| 43 | struct list_head node; | |
| 44 | struct list_head dca_providers; | |
| 45 | struct pci_bus *pci_rc; | |
| 46 | }; | |
| 47 | ||
| 7589670f SN |
48 | struct dca_ops { |
| 49 | int (*add_requester) (struct dca_provider *, struct device *); | |
| 50 | int (*remove_requester) (struct dca_provider *, struct device *); | |
| 7f1b358a MS |
51 | u8 (*get_tag) (struct dca_provider *, struct device *, |
| 52 | int cpu); | |
| 53 | int (*dev_managed) (struct dca_provider *, struct device *); | |
| 7589670f SN |
54 | }; |
| 55 | ||
| 2bb129eb JL |
56 | struct dca_provider *alloc_dca_provider(const struct dca_ops *ops, |
| 57 | int priv_size); | |
| 7589670f SN |
58 | void free_dca_provider(struct dca_provider *dca); |
| 59 | int register_dca_provider(struct dca_provider *dca, struct device *dev); | |
| 1a5aeeec | 60 | void unregister_dca_provider(struct dca_provider *dca, struct device *dev); |
| 7589670f SN |
61 | |
| 62 | static inline void *dca_priv(struct dca_provider *dca) | |
| 63 | { | |
| 64 | return (void *)dca + sizeof(struct dca_provider); | |
| 65 | } | |
| 66 | ||
| 67 | /* Requester API */ | |
| 7f1b358a | 68 | #define DCA_GET_TAG_TWO_ARGS |
| 7589670f SN |
69 | int dca_add_requester(struct device *dev); |
| 70 | int dca_remove_requester(struct device *dev); | |
| 71 | u8 dca_get_tag(int cpu); | |
| 7f1b358a | 72 | u8 dca3_get_tag(struct device *dev, int cpu); |
| 7589670f SN |
73 | |
| 74 | /* internal stuff */ | |
| 75 | int __init dca_sysfs_init(void); | |
| 76 | void __exit dca_sysfs_exit(void); | |
| 77 | int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev); | |
| 78 | void dca_sysfs_remove_provider(struct dca_provider *dca); | |
| 79 | int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot); | |
| 80 | void dca_sysfs_remove_req(struct dca_provider *dca, int slot); | |
| 81 | ||
| 82 | #endif /* DCA_H */ |