Linux kernel mirror (for testing)
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linux
1/*
2 * Mediated device interal definitions
3 *
4 * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
5 * Author: Neo Jia <cjia@nvidia.com>
6 * Kirti Wankhede <kwankhede@nvidia.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13#ifndef MDEV_PRIVATE_H
14#define MDEV_PRIVATE_H
15
16int mdev_bus_register(void);
17void mdev_bus_unregister(void);
18
19struct mdev_parent {
20 struct device *dev;
21 const struct mdev_parent_ops *ops;
22 struct kref ref;
23 struct list_head next;
24 struct kset *mdev_types_kset;
25 struct list_head type_list;
26 /* Synchronize device creation/removal with parent unregistration */
27 struct rw_semaphore unreg_sem;
28};
29
30struct mdev_device {
31 struct device dev;
32 struct mdev_parent *parent;
33 guid_t uuid;
34 void *driver_data;
35 struct list_head next;
36 struct kobject *type_kobj;
37 struct device *iommu_device;
38 bool active;
39};
40
41#define to_mdev_device(dev) container_of(dev, struct mdev_device, dev)
42#define dev_is_mdev(d) ((d)->bus == &mdev_bus_type)
43
44struct mdev_type {
45 struct kobject kobj;
46 struct kobject *devices_kobj;
47 struct mdev_parent *parent;
48 struct list_head next;
49 struct attribute_group *group;
50};
51
52#define to_mdev_type_attr(_attr) \
53 container_of(_attr, struct mdev_type_attribute, attr)
54#define to_mdev_type(_kobj) \
55 container_of(_kobj, struct mdev_type, kobj)
56
57int parent_create_sysfs_files(struct mdev_parent *parent);
58void parent_remove_sysfs_files(struct mdev_parent *parent);
59
60int mdev_create_sysfs_files(struct device *dev, struct mdev_type *type);
61void mdev_remove_sysfs_files(struct device *dev, struct mdev_type *type);
62
63int mdev_device_create(struct kobject *kobj,
64 struct device *dev, const guid_t *uuid);
65int mdev_device_remove(struct device *dev);
66
67#endif /* MDEV_PRIVATE_H */