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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>
37#include <drm/drmP.h>
38#include <drm/drm_gem.h>
39
40#include "drm_internal.h"
41#include "drm_legacy.h"
42
43/**
44 * Called when "/proc/dri/.../name" is read.
45 *
46 * Prints the device name together with the bus id if available.
47 */
48int 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;
53 struct drm_master *master = minor->master;
54 if (!master)
55 return 0;
56
57 if (master->unique) {
58 seq_printf(m, "%s %s %s\n",
59 dev->driver->name,
60 dev_name(dev->dev), master->unique);
61 } else {
62 seq_printf(m, "%s %s\n",
63 dev->driver->name, dev_name(dev->dev));
64 }
65 return 0;
66}
67
68/**
69 * Called when "/proc/dri/.../vm" is read.
70 *
71 * Prints information about all mappings in drm_device::maplist.
72 */
73int drm_vm_info(struct seq_file *m, void *data)
74{
75 struct drm_info_node *node = (struct drm_info_node *) m->private;
76 struct drm_device *dev = node->minor->dev;
77 struct drm_local_map *map;
78 struct drm_map_list *r_list;
79
80 /* Hardcoded from _DRM_FRAME_BUFFER,
81 _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
82 _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
83 const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
84 const char *type;
85 int i;
86
87 mutex_lock(&dev->struct_mutex);
88 seq_printf(m, "slot offset size type flags address mtrr\n\n");
89 i = 0;
90 list_for_each_entry(r_list, &dev->maplist, head) {
91 map = r_list->map;
92 if (!map)
93 continue;
94 if (map->type < 0 || map->type > 5)
95 type = "??";
96 else
97 type = types[map->type];
98
99 seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ",
100 i,
101 (unsigned long long)map->offset,
102 map->size, type, map->flags,
103 (unsigned long) r_list->user_token);
104 if (map->mtrr < 0)
105 seq_printf(m, "none\n");
106 else
107 seq_printf(m, "%4d\n", map->mtrr);
108 i++;
109 }
110 mutex_unlock(&dev->struct_mutex);
111 return 0;
112}
113
114/**
115 * Called when "/proc/dri/.../bufs" is read.
116 */
117int drm_bufs_info(struct seq_file *m, void *data)
118{
119 struct drm_info_node *node = (struct drm_info_node *) m->private;
120 struct drm_device *dev = node->minor->dev;
121 struct drm_device_dma *dma;
122 int i, seg_pages;
123
124 mutex_lock(&dev->struct_mutex);
125 dma = dev->dma;
126 if (!dma) {
127 mutex_unlock(&dev->struct_mutex);
128 return 0;
129 }
130
131 seq_printf(m, " o size count free segs pages kB\n\n");
132 for (i = 0; i <= DRM_MAX_ORDER; i++) {
133 if (dma->bufs[i].buf_count) {
134 seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
135 seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
136 i,
137 dma->bufs[i].buf_size,
138 dma->bufs[i].buf_count,
139 0,
140 dma->bufs[i].seg_count,
141 seg_pages,
142 seg_pages * PAGE_SIZE / 1024);
143 }
144 }
145 seq_printf(m, "\n");
146 for (i = 0; i < dma->buf_count; i++) {
147 if (i && !(i % 32))
148 seq_printf(m, "\n");
149 seq_printf(m, " %d", dma->buflist[i]->list);
150 }
151 seq_printf(m, "\n");
152 mutex_unlock(&dev->struct_mutex);
153 return 0;
154}
155
156/**
157 * Called when "/proc/dri/.../clients" is read.
158 *
159 */
160int drm_clients_info(struct seq_file *m, void *data)
161{
162 struct drm_info_node *node = (struct drm_info_node *) m->private;
163 struct drm_device *dev = node->minor->dev;
164 struct drm_file *priv;
165
166 seq_printf(m,
167 "%20s %5s %3s master a %5s %10s\n",
168 "command",
169 "pid",
170 "dev",
171 "uid",
172 "magic");
173
174 /* dev->filelist is sorted youngest first, but we want to present
175 * oldest first (i.e. kernel, servers, clients), so walk backwardss.
176 */
177 mutex_lock(&dev->struct_mutex);
178 list_for_each_entry_reverse(priv, &dev->filelist, lhead) {
179 struct task_struct *task;
180
181 rcu_read_lock(); /* locks pid_task()->comm */
182 task = pid_task(priv->pid, PIDTYPE_PID);
183 seq_printf(m, "%20s %5d %3d %c %c %5d %10u\n",
184 task ? task->comm : "<unknown>",
185 pid_vnr(priv->pid),
186 priv->minor->index,
187 priv->is_master ? 'y' : 'n',
188 priv->authenticated ? 'y' : 'n',
189 from_kuid_munged(seq_user_ns(m), priv->uid),
190 priv->magic);
191 rcu_read_unlock();
192 }
193 mutex_unlock(&dev->struct_mutex);
194 return 0;
195}
196
197
198static int drm_gem_one_name_info(int id, void *ptr, void *data)
199{
200 struct drm_gem_object *obj = ptr;
201 struct seq_file *m = data;
202
203 seq_printf(m, "%6d %8zd %7d %8d\n",
204 obj->name, obj->size,
205 obj->handle_count,
206 atomic_read(&obj->refcount.refcount));
207 return 0;
208}
209
210int drm_gem_name_info(struct seq_file *m, void *data)
211{
212 struct drm_info_node *node = (struct drm_info_node *) m->private;
213 struct drm_device *dev = node->minor->dev;
214
215 seq_printf(m, " name size handles refcount\n");
216
217 mutex_lock(&dev->object_name_lock);
218 idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
219 mutex_unlock(&dev->object_name_lock);
220
221 return 0;
222}
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>
37#include "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 */
44int 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 const char *bus_name;
51 if (!master)
52 return 0;
53
54 bus_name = dev->driver->bus->get_name(dev);
55 if (master->unique) {
56 seq_printf(m, "%s %s %s\n",
57 bus_name,
58 dev_name(dev->dev), master->unique);
59 } else {
60 seq_printf(m, "%s %s\n",
61 bus_name, dev_name(dev->dev));
62 }
63 return 0;
64}
65
66/**
67 * Called when "/proc/dri/.../vm" is read.
68 *
69 * Prints information about all mappings in drm_device::maplist.
70 */
71int drm_vm_info(struct seq_file *m, void *data)
72{
73 struct drm_info_node *node = (struct drm_info_node *) m->private;
74 struct drm_device *dev = node->minor->dev;
75 struct drm_local_map *map;
76 struct drm_map_list *r_list;
77
78 /* Hardcoded from _DRM_FRAME_BUFFER,
79 _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
80 _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
81 const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
82 const char *type;
83 int i;
84
85 mutex_lock(&dev->struct_mutex);
86 seq_printf(m, "slot offset size type flags address mtrr\n\n");
87 i = 0;
88 list_for_each_entry(r_list, &dev->maplist, head) {
89 map = r_list->map;
90 if (!map)
91 continue;
92 if (map->type < 0 || map->type > 5)
93 type = "??";
94 else
95 type = types[map->type];
96
97 seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ",
98 i,
99 (unsigned long long)map->offset,
100 map->size, type, map->flags,
101 (unsigned long) r_list->user_token);
102 if (map->mtrr < 0)
103 seq_printf(m, "none\n");
104 else
105 seq_printf(m, "%4d\n", map->mtrr);
106 i++;
107 }
108 mutex_unlock(&dev->struct_mutex);
109 return 0;
110}
111
112/**
113 * Called when "/proc/dri/.../queues" is read.
114 */
115int drm_queues_info(struct seq_file *m, void *data)
116{
117 struct drm_info_node *node = (struct drm_info_node *) m->private;
118 struct drm_device *dev = node->minor->dev;
119 int i;
120 struct drm_queue *q;
121
122 mutex_lock(&dev->struct_mutex);
123 seq_printf(m, " ctx/flags use fin"
124 " blk/rw/rwf wait flushed queued"
125 " locks\n\n");
126 for (i = 0; i < dev->queue_count; i++) {
127 q = dev->queuelist[i];
128 atomic_inc(&q->use_count);
129 seq_printf(m, "%5d/0x%03x %5d %5d"
130 " %5d/%c%c/%c%c%c %5Zd\n",
131 i,
132 q->flags,
133 atomic_read(&q->use_count),
134 atomic_read(&q->finalization),
135 atomic_read(&q->block_count),
136 atomic_read(&q->block_read) ? 'r' : '-',
137 atomic_read(&q->block_write) ? 'w' : '-',
138 waitqueue_active(&q->read_queue) ? 'r' : '-',
139 waitqueue_active(&q->write_queue) ? 'w' : '-',
140 waitqueue_active(&q->flush_queue) ? 'f' : '-',
141 DRM_BUFCOUNT(&q->waitlist));
142 atomic_dec(&q->use_count);
143 }
144 mutex_unlock(&dev->struct_mutex);
145 return 0;
146}
147
148/**
149 * Called when "/proc/dri/.../bufs" is read.
150 */
151int drm_bufs_info(struct seq_file *m, void *data)
152{
153 struct drm_info_node *node = (struct drm_info_node *) m->private;
154 struct drm_device *dev = node->minor->dev;
155 struct drm_device_dma *dma;
156 int i, seg_pages;
157
158 mutex_lock(&dev->struct_mutex);
159 dma = dev->dma;
160 if (!dma) {
161 mutex_unlock(&dev->struct_mutex);
162 return 0;
163 }
164
165 seq_printf(m, " o size count free segs pages kB\n\n");
166 for (i = 0; i <= DRM_MAX_ORDER; i++) {
167 if (dma->bufs[i].buf_count) {
168 seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
169 seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
170 i,
171 dma->bufs[i].buf_size,
172 dma->bufs[i].buf_count,
173 atomic_read(&dma->bufs[i].freelist.count),
174 dma->bufs[i].seg_count,
175 seg_pages,
176 seg_pages * PAGE_SIZE / 1024);
177 }
178 }
179 seq_printf(m, "\n");
180 for (i = 0; i < dma->buf_count; i++) {
181 if (i && !(i % 32))
182 seq_printf(m, "\n");
183 seq_printf(m, " %d", dma->buflist[i]->list);
184 }
185 seq_printf(m, "\n");
186 mutex_unlock(&dev->struct_mutex);
187 return 0;
188}
189
190/**
191 * Called when "/proc/dri/.../vblank" is read.
192 */
193int drm_vblank_info(struct seq_file *m, void *data)
194{
195 struct drm_info_node *node = (struct drm_info_node *) m->private;
196 struct drm_device *dev = node->minor->dev;
197 int crtc;
198
199 mutex_lock(&dev->struct_mutex);
200 for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
201 seq_printf(m, "CRTC %d enable: %d\n",
202 crtc, atomic_read(&dev->vblank_refcount[crtc]));
203 seq_printf(m, "CRTC %d counter: %d\n",
204 crtc, drm_vblank_count(dev, crtc));
205 seq_printf(m, "CRTC %d last wait: %d\n",
206 crtc, dev->last_vblank_wait[crtc]);
207 seq_printf(m, "CRTC %d in modeset: %d\n",
208 crtc, dev->vblank_inmodeset[crtc]);
209 }
210 mutex_unlock(&dev->struct_mutex);
211 return 0;
212}
213
214/**
215 * Called when "/proc/dri/.../clients" is read.
216 *
217 */
218int drm_clients_info(struct seq_file *m, void *data)
219{
220 struct drm_info_node *node = (struct drm_info_node *) m->private;
221 struct drm_device *dev = node->minor->dev;
222 struct drm_file *priv;
223
224 mutex_lock(&dev->struct_mutex);
225 seq_printf(m, "a dev pid uid magic ioctls\n\n");
226 list_for_each_entry(priv, &dev->filelist, lhead) {
227 seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
228 priv->authenticated ? 'y' : 'n',
229 priv->minor->index,
230 priv->pid,
231 priv->uid, priv->magic, priv->ioctl_count);
232 }
233 mutex_unlock(&dev->struct_mutex);
234 return 0;
235}
236
237
238int drm_gem_one_name_info(int id, void *ptr, void *data)
239{
240 struct drm_gem_object *obj = ptr;
241 struct seq_file *m = data;
242
243 seq_printf(m, "name %d size %zd\n", obj->name, obj->size);
244
245 seq_printf(m, "%6d %8zd %7d %8d\n",
246 obj->name, obj->size,
247 atomic_read(&obj->handle_count),
248 atomic_read(&obj->refcount.refcount));
249 return 0;
250}
251
252int drm_gem_name_info(struct seq_file *m, void *data)
253{
254 struct drm_info_node *node = (struct drm_info_node *) m->private;
255 struct drm_device *dev = node->minor->dev;
256
257 seq_printf(m, " name size handles refcount\n");
258 idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
259 return 0;
260}
261
262#if DRM_DEBUG_CODE
263
264int drm_vma_info(struct seq_file *m, void *data)
265{
266 struct drm_info_node *node = (struct drm_info_node *) m->private;
267 struct drm_device *dev = node->minor->dev;
268 struct drm_vma_entry *pt;
269 struct vm_area_struct *vma;
270#if defined(__i386__)
271 unsigned int pgprot;
272#endif
273
274 mutex_lock(&dev->struct_mutex);
275 seq_printf(m, "vma use count: %d, high_memory = %pK, 0x%pK\n",
276 atomic_read(&dev->vma_count),
277 high_memory, (void *)virt_to_phys(high_memory));
278
279 list_for_each_entry(pt, &dev->vmalist, head) {
280 vma = pt->vma;
281 if (!vma)
282 continue;
283 seq_printf(m,
284 "\n%5d 0x%pK-0x%pK %c%c%c%c%c%c 0x%08lx000",
285 pt->pid,
286 (void *)vma->vm_start, (void *)vma->vm_end,
287 vma->vm_flags & VM_READ ? 'r' : '-',
288 vma->vm_flags & VM_WRITE ? 'w' : '-',
289 vma->vm_flags & VM_EXEC ? 'x' : '-',
290 vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
291 vma->vm_flags & VM_LOCKED ? 'l' : '-',
292 vma->vm_flags & VM_IO ? 'i' : '-',
293 vma->vm_pgoff);
294
295#if defined(__i386__)
296 pgprot = pgprot_val(vma->vm_page_prot);
297 seq_printf(m, " %c%c%c%c%c%c%c%c%c",
298 pgprot & _PAGE_PRESENT ? 'p' : '-',
299 pgprot & _PAGE_RW ? 'w' : 'r',
300 pgprot & _PAGE_USER ? 'u' : 's',
301 pgprot & _PAGE_PWT ? 't' : 'b',
302 pgprot & _PAGE_PCD ? 'u' : 'c',
303 pgprot & _PAGE_ACCESSED ? 'a' : '-',
304 pgprot & _PAGE_DIRTY ? 'd' : '-',
305 pgprot & _PAGE_PSE ? 'm' : 'k',
306 pgprot & _PAGE_GLOBAL ? 'g' : 'l');
307#endif
308 seq_printf(m, "\n");
309 }
310 mutex_unlock(&dev->struct_mutex);
311 return 0;
312}
313
314#endif
315