]> Git Repo - linux.git/blob - drivers/gpu/drm/drm_info.c
Merge tag 'ipu-3.18' of git://git.pengutronix.de/git/pza/linux into drm-next
[linux.git] / drivers / gpu / drm / drm_info.c
1 /**
2  * \file drm_info.c
3  * DRM info file implementations
4  *
5  * \author Ben Gamari <[email protected]>
6  */
7
8 /*
9  * Created: Sun Dec 21 13:09:50 2008 by [email protected]
10  *
11  * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
12  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
13  * Copyright 2008 Ben Gamari <[email protected]>
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>
37 #include <drm/drmP.h>
38
39 /**
40  * Called when "/proc/dri/.../name" is read.
41  *
42  * Prints the device name together with the bus id if available.
43  */
44 int drm_name_info(struct seq_file *m, void *data)
45 {
46         struct drm_info_node *node = (struct drm_info_node *) m->private;
47         struct drm_minor *minor = node->minor;
48         struct drm_device *dev = minor->dev;
49         struct drm_master *master = minor->master;
50         if (!master)
51                 return 0;
52
53         if (master->unique) {
54                 seq_printf(m, "%s %s %s\n",
55                            dev->driver->name,
56                            dev_name(dev->dev), master->unique);
57         } else {
58                 seq_printf(m, "%s %s\n",
59                            dev->driver->name, dev_name(dev->dev));
60         }
61         return 0;
62 }
63
64 /**
65  * Called when "/proc/dri/.../vm" is read.
66  *
67  * Prints information about all mappings in drm_device::maplist.
68  */
69 int drm_vm_info(struct seq_file *m, void *data)
70 {
71         struct drm_info_node *node = (struct drm_info_node *) m->private;
72         struct drm_device *dev = node->minor->dev;
73         struct drm_local_map *map;
74         struct drm_map_list *r_list;
75
76         /* Hardcoded from _DRM_FRAME_BUFFER,
77            _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
78            _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
79         const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
80         const char *type;
81         int i;
82
83         mutex_lock(&dev->struct_mutex);
84         seq_printf(m, "slot      offset       size type flags    address mtrr\n\n");
85         i = 0;
86         list_for_each_entry(r_list, &dev->maplist, head) {
87                 map = r_list->map;
88                 if (!map)
89                         continue;
90                 if (map->type < 0 || map->type > 5)
91                         type = "??";
92                 else
93                         type = types[map->type];
94
95                 seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s  0x%02x 0x%08lx ",
96                            i,
97                            (unsigned long long)map->offset,
98                            map->size, type, map->flags,
99                            (unsigned long) r_list->user_token);
100                 if (map->mtrr < 0)
101                         seq_printf(m, "none\n");
102                 else
103                         seq_printf(m, "%4d\n", map->mtrr);
104                 i++;
105         }
106         mutex_unlock(&dev->struct_mutex);
107         return 0;
108 }
109
110 /**
111  * Called when "/proc/dri/.../bufs" is read.
112  */
113 int drm_bufs_info(struct seq_file *m, void *data)
114 {
115         struct drm_info_node *node = (struct drm_info_node *) m->private;
116         struct drm_device *dev = node->minor->dev;
117         struct drm_device_dma *dma;
118         int i, seg_pages;
119
120         mutex_lock(&dev->struct_mutex);
121         dma = dev->dma;
122         if (!dma) {
123                 mutex_unlock(&dev->struct_mutex);
124                 return 0;
125         }
126
127         seq_printf(m, " o     size count  free   segs pages    kB\n\n");
128         for (i = 0; i <= DRM_MAX_ORDER; i++) {
129                 if (dma->bufs[i].buf_count) {
130                         seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
131                         seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
132                                    i,
133                                    dma->bufs[i].buf_size,
134                                    dma->bufs[i].buf_count,
135                                    0,
136                                    dma->bufs[i].seg_count,
137                                    seg_pages,
138                                    seg_pages * PAGE_SIZE / 1024);
139                 }
140         }
141         seq_printf(m, "\n");
142         for (i = 0; i < dma->buf_count; i++) {
143                 if (i && !(i % 32))
144                         seq_printf(m, "\n");
145                 seq_printf(m, " %d", dma->buflist[i]->list);
146         }
147         seq_printf(m, "\n");
148         mutex_unlock(&dev->struct_mutex);
149         return 0;
150 }
151
152 /**
153  * Called when "/proc/dri/.../vblank" is read.
154  */
155 int drm_vblank_info(struct seq_file *m, void *data)
156 {
157         struct drm_info_node *node = (struct drm_info_node *) m->private;
158         struct drm_device *dev = node->minor->dev;
159         int crtc;
160
161         mutex_lock(&dev->struct_mutex);
162         for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
163                 seq_printf(m, "CRTC %d enable:     %d\n",
164                            crtc, atomic_read(&dev->vblank[crtc].refcount));
165                 seq_printf(m, "CRTC %d counter:    %d\n",
166                            crtc, drm_vblank_count(dev, crtc));
167                 seq_printf(m, "CRTC %d last wait:  %d\n",
168                            crtc, dev->vblank[crtc].last_wait);
169                 seq_printf(m, "CRTC %d in modeset: %d\n",
170                            crtc, dev->vblank[crtc].inmodeset);
171         }
172         mutex_unlock(&dev->struct_mutex);
173         return 0;
174 }
175
176 /**
177  * Called when "/proc/dri/.../clients" is read.
178  *
179  */
180 int drm_clients_info(struct seq_file *m, void *data)
181 {
182         struct drm_info_node *node = (struct drm_info_node *) m->private;
183         struct drm_device *dev = node->minor->dev;
184         struct drm_file *priv;
185
186         mutex_lock(&dev->struct_mutex);
187         seq_printf(m, "a dev    pid    uid      magic\n\n");
188         list_for_each_entry(priv, &dev->filelist, lhead) {
189                 seq_printf(m, "%c %3d %5d %5d %10u\n",
190                            priv->authenticated ? 'y' : 'n',
191                            priv->minor->index,
192                            pid_vnr(priv->pid),
193                            from_kuid_munged(seq_user_ns(m), priv->uid),
194                            priv->magic);
195         }
196         mutex_unlock(&dev->struct_mutex);
197         return 0;
198 }
199
200
201 static int drm_gem_one_name_info(int id, void *ptr, void *data)
202 {
203         struct drm_gem_object *obj = ptr;
204         struct seq_file *m = data;
205
206         seq_printf(m, "%6d %8zd %7d %8d\n",
207                    obj->name, obj->size,
208                    obj->handle_count,
209                    atomic_read(&obj->refcount.refcount));
210         return 0;
211 }
212
213 int drm_gem_name_info(struct seq_file *m, void *data)
214 {
215         struct drm_info_node *node = (struct drm_info_node *) m->private;
216         struct drm_device *dev = node->minor->dev;
217
218         seq_printf(m, "  name     size handles refcount\n");
219
220         mutex_lock(&dev->object_name_lock);
221         idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
222         mutex_unlock(&dev->object_name_lock);
223
224         return 0;
225 }
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