Commit | Line | Data |
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955b12de BG |
1 | /** |
2 | * \file drm_info.c | |
3 | * DRM info file implementations | |
4 | * | |
5 | * \author Ben Gamari <bgamari@gmail.com> | |
6 | */ | |
7 | ||
8 | /* | |
9 | * Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com | |
10 | * | |
11 | * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. | |
12 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. | |
13 | * Copyright 2008 Ben Gamari <bgamari@gmail.com> | |
14 | * All Rights Reserved. | |
15 | * | |
16 | * Permission is hereby granted, free of charge, to any person obtaining a | |
17 | * copy of this software and associated documentation files (the "Software"), | |
18 | * to deal in the Software without restriction, including without limitation | |
19 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
20 | * and/or sell copies of the Software, and to permit persons to whom the | |
21 | * Software is furnished to do so, subject to the following conditions: | |
22 | * | |
23 | * The above copyright notice and this permission notice (including the next | |
24 | * paragraph) shall be included in all copies or substantial portions of the | |
25 | * Software. | |
26 | * | |
27 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
28 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
29 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
30 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
31 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
32 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
33 | * OTHER DEALINGS IN THE SOFTWARE. | |
34 | */ | |
35 | ||
36 | #include <linux/seq_file.h> | |
760285e7 | 37 | #include <drm/drmP.h> |
d9fc9413 DV |
38 | #include <drm/drm_gem.h> |
39 | ||
43fc884e | 40 | #include "drm_internal.h" |
ba8286fa | 41 | #include "drm_legacy.h" |
955b12de BG |
42 | |
43 | /** | |
44 | * Called when "/proc/dri/.../name" is read. | |
45 | * | |
46 | * Prints the device name together with the bus id if available. | |
47 | */ | |
48 | int drm_name_info(struct seq_file *m, void *data) | |
49 | { | |
50 | struct drm_info_node *node = (struct drm_info_node *) m->private; | |
51 | struct drm_minor *minor = node->minor; | |
52 | struct drm_device *dev = minor->dev; | |
95c081c1 DV |
53 | struct drm_master *master; |
54 | ||
55 | mutex_lock(&dev->master_mutex); | |
56 | master = dev->master; | |
57 | if (!master) | |
58 | goto out_unlock; | |
955b12de | 59 | |
e4245ea8 CW |
60 | seq_printf(m, "%s", dev->driver->name); |
61 | if (dev->dev) | |
62 | seq_printf(m, " dev=%s", dev_name(dev->dev)); | |
63 | if (master && master->unique) | |
64 | seq_printf(m, " master=%s", master->unique); | |
65 | if (dev->unique) | |
66 | seq_printf(m, " unique=%s", dev->unique); | |
67 | seq_printf(m, "\n"); | |
95c081c1 DV |
68 | out_unlock: |
69 | mutex_unlock(&dev->master_mutex); | |
e4245ea8 | 70 | |
955b12de BG |
71 | return 0; |
72 | } | |
73 | ||
955b12de BG |
74 | /** |
75 | * Called when "/proc/dri/.../clients" is read. | |
76 | * | |
77 | */ | |
78 | int drm_clients_info(struct seq_file *m, void *data) | |
79 | { | |
80 | struct drm_info_node *node = (struct drm_info_node *) m->private; | |
81 | struct drm_device *dev = node->minor->dev; | |
82 | struct drm_file *priv; | |
83 | ||
50d47cb3 CW |
84 | seq_printf(m, |
85 | "%20s %5s %3s master a %5s %10s\n", | |
86 | "command", | |
87 | "pid", | |
88 | "dev", | |
89 | "uid", | |
90 | "magic"); | |
91 | ||
92 | /* dev->filelist is sorted youngest first, but we want to present | |
93 | * oldest first (i.e. kernel, servers, clients), so walk backwardss. | |
94 | */ | |
1d2ac403 | 95 | mutex_lock(&dev->filelist_mutex); |
50d47cb3 CW |
96 | list_for_each_entry_reverse(priv, &dev->filelist, lhead) { |
97 | struct task_struct *task; | |
98 | ||
99 | rcu_read_lock(); /* locks pid_task()->comm */ | |
100 | task = pid_task(priv->pid, PIDTYPE_PID); | |
101 | seq_printf(m, "%20s %5d %3d %c %c %5d %10u\n", | |
102 | task ? task->comm : "<unknown>", | |
5fce5e0b | 103 | pid_vnr(priv->pid), |
50d47cb3 | 104 | priv->minor->index, |
b3ac9f25 | 105 | drm_is_current_master(priv) ? 'y' : 'n', |
50d47cb3 | 106 | priv->authenticated ? 'y' : 'n', |
5fce5e0b | 107 | from_kuid_munged(seq_user_ns(m), priv->uid), |
5952fba5 | 108 | priv->magic); |
50d47cb3 | 109 | rcu_read_unlock(); |
955b12de | 110 | } |
1d2ac403 | 111 | mutex_unlock(&dev->filelist_mutex); |
955b12de BG |
112 | return 0; |
113 | } | |
114 | ||
b375de0b | 115 | static int drm_gem_one_name_info(int id, void *ptr, void *data) |
955b12de BG |
116 | { |
117 | struct drm_gem_object *obj = ptr; | |
118 | struct seq_file *m = data; | |
119 | ||
955b12de BG |
120 | seq_printf(m, "%6d %8zd %7d %8d\n", |
121 | obj->name, obj->size, | |
a8e11d1c | 122 | obj->handle_count, |
955b12de BG |
123 | atomic_read(&obj->refcount.refcount)); |
124 | return 0; | |
125 | } | |
126 | ||
127 | int drm_gem_name_info(struct seq_file *m, void *data) | |
128 | { | |
129 | struct drm_info_node *node = (struct drm_info_node *) m->private; | |
130 | struct drm_device *dev = node->minor->dev; | |
131 | ||
132 | seq_printf(m, " name size handles refcount\n"); | |
90254ac0 | 133 | |
cd4f013f | 134 | mutex_lock(&dev->object_name_lock); |
955b12de | 135 | idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m); |
cd4f013f | 136 | mutex_unlock(&dev->object_name_lock); |
90254ac0 | 137 | |
955b12de BG |
138 | return 0; |
139 | } |