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

 
 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 */
21#ifndef DCA_H
22#define DCA_H
23
24#include <linux/pci.h>
25
26/* DCA Provider API */
27
28/* DCA Notifier Interface */
29void dca_register_notify(struct notifier_block *nb);
30void dca_unregister_notify(struct notifier_block *nb);
31
32#define DCA_PROVIDER_ADD     0x0001
33#define DCA_PROVIDER_REMOVE  0x0002
34
35struct dca_provider {
36	struct list_head	node;
37	struct dca_ops		*ops;
38	struct device 		*cd;
39	int			 id;
40};
41
42struct dca_domain {
43	struct list_head	node;
44	struct list_head	dca_providers;
45	struct pci_bus		*pci_rc;
46};
47
48struct dca_ops {
49	int	(*add_requester)    (struct dca_provider *, struct device *);
50	int	(*remove_requester) (struct dca_provider *, struct device *);
51	u8	(*get_tag)	    (struct dca_provider *, struct device *,
52				     int cpu);
53	int	(*dev_managed)      (struct dca_provider *, struct device *);
54};
55
56struct dca_provider *alloc_dca_provider(struct dca_ops *ops, int priv_size);
 
57void free_dca_provider(struct dca_provider *dca);
58int register_dca_provider(struct dca_provider *dca, struct device *dev);
59void unregister_dca_provider(struct dca_provider *dca, struct device *dev);
60
61static inline void *dca_priv(struct dca_provider *dca)
62{
63	return (void *)dca + sizeof(struct dca_provider);
64}
65
66/* Requester API */
67#define DCA_GET_TAG_TWO_ARGS
68int dca_add_requester(struct device *dev);
69int dca_remove_requester(struct device *dev);
70u8 dca_get_tag(int cpu);
71u8 dca3_get_tag(struct device *dev, int cpu);
72
73/* internal stuff */
74int __init dca_sysfs_init(void);
75void __exit dca_sysfs_exit(void);
76int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev);
77void dca_sysfs_remove_provider(struct dca_provider *dca);
78int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot);
79void dca_sysfs_remove_req(struct dca_provider *dca, int slot);
80
81#endif /* DCA_H */