1 | /* |
2 | * Internal Header for the Direct Rendering Manager |
3 | * |
4 | * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. |
5 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. |
6 | * Copyright (c) 2009-2010, Code Aurora Forum. |
7 | * All rights reserved. |
8 | * |
9 | * Author: Rickard E. (Rik) Faith <faith@valinux.com> |
10 | * Author: Gareth Hughes <gareth@valinux.com> |
11 | * |
12 | * Permission is hereby granted, free of charge, to any person obtaining a |
13 | * copy of this software and associated documentation files (the "Software"), |
14 | * to deal in the Software without restriction, including without limitation |
15 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
16 | * and/or sell copies of the Software, and to permit persons to whom the |
17 | * Software is furnished to do so, subject to the following conditions: |
18 | * |
19 | * The above copyright notice and this permission notice (including the next |
20 | * paragraph) shall be included in all copies or substantial portions of the |
21 | * Software. |
22 | * |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
24 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
25 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
26 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
27 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
28 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
29 | * OTHER DEALINGS IN THE SOFTWARE. |
30 | */ |
31 | |
32 | #ifndef _DRM_DEBUGFS_H_ |
33 | #define _DRM_DEBUGFS_H_ |
34 | |
35 | /** |
36 | * struct drm_info_list - debugfs info list entry |
37 | * |
38 | * This structure represents a debugfs file to be created by the drm |
39 | * core. |
40 | */ |
41 | struct drm_info_list { |
42 | /** @name: file name */ |
43 | const char *name; |
44 | /** |
45 | * @show: |
46 | * |
47 | * Show callback. &seq_file->private will be set to the &struct |
48 | * drm_info_node corresponding to the instance of this info on a given |
49 | * &struct drm_minor. |
50 | */ |
51 | int (*show)(struct seq_file*, void*); |
52 | /** @driver_features: Required driver features for this entry */ |
53 | u32 driver_features; |
54 | /** @data: Driver-private data, should not be device-specific. */ |
55 | void *data; |
56 | }; |
57 | |
58 | /** |
59 | * struct drm_info_node - Per-minor debugfs node structure |
60 | * |
61 | * This structure represents a debugfs file, as an instantiation of a &struct |
62 | * drm_info_list on a &struct drm_minor. |
63 | * |
64 | * FIXME: |
65 | * |
66 | * No it doesn't make a hole lot of sense that we duplicate debugfs entries for |
67 | * both the render and the primary nodes, but that's how this has organically |
68 | * grown. It should probably be fixed, with a compatibility link, if needed. |
69 | */ |
70 | struct drm_info_node { |
71 | /** @minor: &struct drm_minor for this node. */ |
72 | struct drm_minor *minor; |
73 | /** @info_ent: template for this node. */ |
74 | const struct drm_info_list *info_ent; |
75 | /* private: */ |
76 | struct list_head list; |
77 | struct dentry *dent; |
78 | }; |
79 | |
80 | #if defined(CONFIG_DEBUG_FS) |
81 | int drm_debugfs_create_files(const struct drm_info_list *files, |
82 | int count, struct dentry *root, |
83 | struct drm_minor *minor); |
84 | int drm_debugfs_remove_files(const struct drm_info_list *files, |
85 | int count, struct drm_minor *minor); |
86 | #else |
87 | static inline int drm_debugfs_create_files(const struct drm_info_list *files, |
88 | int count, struct dentry *root, |
89 | struct drm_minor *minor) |
90 | { |
91 | return 0; |
92 | } |
93 | |
94 | static inline int drm_debugfs_remove_files(const struct drm_info_list *files, |
95 | int count, struct drm_minor *minor) |
96 | { |
97 | return 0; |
98 | } |
99 | #endif |
100 | |
101 | #endif /* _DRM_DEBUGFS_H_ */ |
102 | |