]>
git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - drivers/gpu/drm/drm_info.c
3 * DRM info file implementations
5 * \author Ben Gamari <bgamari@gmail.com>
9 * Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com
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.
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:
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
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.
36 #include <linux/seq_file.h>
38 #include <drm/drm_gem.h>
40 #include "drm_internal.h"
41 #include "drm_legacy.h"
44 * Called when "/proc/dri/.../name" is read.
46 * Prints the device name together with the bus id if available.
48 int drm_name_info(struct seq_file
*m
, void *data
)
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
;
53 struct drm_master
*master
;
55 mutex_lock(&dev
->master_mutex
);
60 seq_printf(m
, "%s", dev
->driver
->name
);
62 seq_printf(m
, " dev=%s", dev_name(dev
->dev
));
63 if (master
&& master
->unique
)
64 seq_printf(m
, " master=%s", master
->unique
);
66 seq_printf(m
, " unique=%s", dev
->unique
);
69 mutex_unlock(&dev
->master_mutex
);
75 * Called when "/proc/dri/.../clients" is read.
78 int drm_clients_info(struct seq_file
*m
, void *data
)
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
;
85 "%20s %5s %3s master a %5s %10s\n",
92 /* dev->filelist is sorted youngest first, but we want to present
93 * oldest first (i.e. kernel, servers, clients), so walk backwardss.
95 mutex_lock(&dev
->filelist_mutex
);
96 list_for_each_entry_reverse(priv
, &dev
->filelist
, lhead
) {
97 struct task_struct
*task
;
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>",
105 drm_is_current_master(priv
) ? 'y' : 'n',
106 priv
->authenticated
? 'y' : 'n',
107 from_kuid_munged(seq_user_ns(m
), priv
->uid
),
111 mutex_unlock(&dev
->filelist_mutex
);
115 static int drm_gem_one_name_info(int id
, void *ptr
, void *data
)
117 struct drm_gem_object
*obj
= ptr
;
118 struct seq_file
*m
= data
;
120 seq_printf(m
, "%6d %8zd %7d %8d\n",
121 obj
->name
, obj
->size
,
123 atomic_read(&obj
->refcount
.refcount
));
127 int drm_gem_name_info(struct seq_file
*m
, void *data
)
129 struct drm_info_node
*node
= (struct drm_info_node
*) m
->private;
130 struct drm_device
*dev
= node
->minor
->dev
;
132 seq_printf(m
, " name size handles refcount\n");
134 mutex_lock(&dev
->object_name_lock
);
135 idr_for_each(&dev
->object_name_idr
, drm_gem_one_name_info
, m
);
136 mutex_unlock(&dev
->object_name_lock
);