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Ben Gamari955b12d2009-02-17 20:08:49 -05001/**
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>
David Howells760285e2012-10-02 18:01:07 +010037#include <drm/drmP.h>
Ben Gamari955b12d2009-02-17 20:08:49 -050038
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;
Dave Airlie8410ea32010-12-15 03:16:38 +100050 const char *bus_name;
Ben Gamari955b12d2009-02-17 20:08:49 -050051 if (!master)
52 return 0;
53
Dave Airlie8410ea32010-12-15 03:16:38 +100054 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);
Ben Gamari955b12d2009-02-17 20:08:49 -050059 } else {
Dave Airlie8410ea32010-12-15 03:16:38 +100060 seq_printf(m, "%s %s\n",
61 bus_name, dev_name(dev->dev));
Ben Gamari955b12d2009-02-17 20:08:49 -050062 }
Ben Gamari955b12d2009-02-17 20:08:49 -050063 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;
Dave Airlie1847a542009-03-09 12:47:18 +100075 struct drm_local_map *map;
Ben Gamari955b12d2009-02-17 20:08:49 -050076 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
Dave Airlie1847a542009-03-09 12:47:18 +100097 seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ",
Ben Gamari955b12d2009-02-17 20:08:49 -050098 i,
Dave Airlie1847a542009-03-09 12:47:18 +100099 (unsigned long long)map->offset,
Ben Gamari955b12d2009-02-17 20:08:49 -0500100 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/**
Ben Gamari955b12d2009-02-17 20:08:49 -0500113 * Called when "/proc/dri/.../bufs" is read.
114 */
115int drm_bufs_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 struct drm_device_dma *dma;
120 int i, seg_pages;
121
122 mutex_lock(&dev->struct_mutex);
123 dma = dev->dma;
124 if (!dma) {
125 mutex_unlock(&dev->struct_mutex);
126 return 0;
127 }
128
129 seq_printf(m, " o size count free segs pages kB\n\n");
130 for (i = 0; i <= DRM_MAX_ORDER; i++) {
131 if (dma->bufs[i].buf_count) {
132 seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
133 seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
134 i,
135 dma->bufs[i].buf_size,
136 dma->bufs[i].buf_count,
137 atomic_read(&dma->bufs[i].freelist.count),
138 dma->bufs[i].seg_count,
139 seg_pages,
140 seg_pages * PAGE_SIZE / 1024);
141 }
142 }
143 seq_printf(m, "\n");
144 for (i = 0; i < dma->buf_count; i++) {
145 if (i && !(i % 32))
146 seq_printf(m, "\n");
147 seq_printf(m, " %d", dma->buflist[i]->list);
148 }
149 seq_printf(m, "\n");
150 mutex_unlock(&dev->struct_mutex);
151 return 0;
152}
153
154/**
155 * Called when "/proc/dri/.../vblank" is read.
156 */
157int drm_vblank_info(struct seq_file *m, void *data)
158{
159 struct drm_info_node *node = (struct drm_info_node *) m->private;
160 struct drm_device *dev = node->minor->dev;
161 int crtc;
162
163 mutex_lock(&dev->struct_mutex);
164 for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
165 seq_printf(m, "CRTC %d enable: %d\n",
Ville Syrjälä5380e922013-10-04 14:53:36 +0300166 crtc, atomic_read(&dev->vblank[crtc].refcount));
Ben Gamari955b12d2009-02-17 20:08:49 -0500167 seq_printf(m, "CRTC %d counter: %d\n",
168 crtc, drm_vblank_count(dev, crtc));
169 seq_printf(m, "CRTC %d last wait: %d\n",
Ville Syrjälä5380e922013-10-04 14:53:36 +0300170 crtc, dev->vblank[crtc].last_wait);
Ben Gamari955b12d2009-02-17 20:08:49 -0500171 seq_printf(m, "CRTC %d in modeset: %d\n",
Ville Syrjälä5380e922013-10-04 14:53:36 +0300172 crtc, dev->vblank[crtc].inmodeset);
Ben Gamari955b12d2009-02-17 20:08:49 -0500173 }
174 mutex_unlock(&dev->struct_mutex);
175 return 0;
176}
177
178/**
179 * Called when "/proc/dri/.../clients" is read.
180 *
181 */
182int drm_clients_info(struct seq_file *m, void *data)
183{
184 struct drm_info_node *node = (struct drm_info_node *) m->private;
185 struct drm_device *dev = node->minor->dev;
186 struct drm_file *priv;
187
188 mutex_lock(&dev->struct_mutex);
189 seq_printf(m, "a dev pid uid magic ioctls\n\n");
190 list_for_each_entry(priv, &dev->filelist, lhead) {
191 seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
192 priv->authenticated ? 'y' : 'n',
193 priv->minor->index,
Eric W. Biederman5fce5e02012-02-07 16:47:26 -0800194 pid_vnr(priv->pid),
195 from_kuid_munged(seq_user_ns(m), priv->uid),
196 priv->magic, priv->ioctl_count);
Ben Gamari955b12d2009-02-17 20:08:49 -0500197 }
198 mutex_unlock(&dev->struct_mutex);
199 return 0;
200}
201
202
Sachin Kamatb375de02012-06-18 11:09:56 +0530203static int drm_gem_one_name_info(int id, void *ptr, void *data)
Ben Gamari955b12d2009-02-17 20:08:49 -0500204{
205 struct drm_gem_object *obj = ptr;
206 struct seq_file *m = data;
207
Ben Gamari955b12d2009-02-17 20:08:49 -0500208 seq_printf(m, "%6d %8zd %7d %8d\n",
209 obj->name, obj->size,
Daniel Vettera8e11d12013-08-15 00:02:37 +0200210 obj->handle_count,
Ben Gamari955b12d2009-02-17 20:08:49 -0500211 atomic_read(&obj->refcount.refcount));
212 return 0;
213}
214
215int drm_gem_name_info(struct seq_file *m, void *data)
216{
217 struct drm_info_node *node = (struct drm_info_node *) m->private;
218 struct drm_device *dev = node->minor->dev;
219
220 seq_printf(m, " name size handles refcount\n");
Daniel Vetter90254ac2013-08-08 15:41:33 +0200221
Daniel Vettercd4f0132013-08-15 00:02:44 +0200222 mutex_lock(&dev->object_name_lock);
Ben Gamari955b12d2009-02-17 20:08:49 -0500223 idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
Daniel Vettercd4f0132013-08-15 00:02:44 +0200224 mutex_unlock(&dev->object_name_lock);
Daniel Vetter90254ac2013-08-08 15:41:33 +0200225
Ben Gamari955b12d2009-02-17 20:08:49 -0500226 return 0;
227}
228
Ben Gamari955b12d2009-02-17 20:08:49 -0500229#if DRM_DEBUG_CODE
230
231int drm_vma_info(struct seq_file *m, void *data)
232{
233 struct drm_info_node *node = (struct drm_info_node *) m->private;
234 struct drm_device *dev = node->minor->dev;
235 struct drm_vma_entry *pt;
236 struct vm_area_struct *vma;
237#if defined(__i386__)
238 unsigned int pgprot;
239#endif
240
241 mutex_lock(&dev->struct_mutex);
Kees Cook01e2f532011-02-11 19:29:44 -0800242 seq_printf(m, "vma use count: %d, high_memory = %pK, 0x%pK\n",
Ben Gamari955b12d2009-02-17 20:08:49 -0500243 atomic_read(&dev->vma_count),
Dave Airlie7b850532012-10-16 10:28:21 +1000244 high_memory, (void *)(unsigned long)virt_to_phys(high_memory));
Ben Gamari955b12d2009-02-17 20:08:49 -0500245
246 list_for_each_entry(pt, &dev->vmalist, head) {
247 vma = pt->vma;
248 if (!vma)
249 continue;
250 seq_printf(m,
Kees Cook01e2f532011-02-11 19:29:44 -0800251 "\n%5d 0x%pK-0x%pK %c%c%c%c%c%c 0x%08lx000",
252 pt->pid,
253 (void *)vma->vm_start, (void *)vma->vm_end,
Ben Gamari955b12d2009-02-17 20:08:49 -0500254 vma->vm_flags & VM_READ ? 'r' : '-',
255 vma->vm_flags & VM_WRITE ? 'w' : '-',
256 vma->vm_flags & VM_EXEC ? 'x' : '-',
257 vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
258 vma->vm_flags & VM_LOCKED ? 'l' : '-',
259 vma->vm_flags & VM_IO ? 'i' : '-',
260 vma->vm_pgoff);
261
262#if defined(__i386__)
263 pgprot = pgprot_val(vma->vm_page_prot);
264 seq_printf(m, " %c%c%c%c%c%c%c%c%c",
265 pgprot & _PAGE_PRESENT ? 'p' : '-',
266 pgprot & _PAGE_RW ? 'w' : 'r',
267 pgprot & _PAGE_USER ? 'u' : 's',
268 pgprot & _PAGE_PWT ? 't' : 'b',
269 pgprot & _PAGE_PCD ? 'u' : 'c',
270 pgprot & _PAGE_ACCESSED ? 'a' : '-',
271 pgprot & _PAGE_DIRTY ? 'd' : '-',
272 pgprot & _PAGE_PSE ? 'm' : 'k',
273 pgprot & _PAGE_GLOBAL ? 'g' : 'l');
274#endif
275 seq_printf(m, "\n");
276 }
277 mutex_unlock(&dev->struct_mutex);
278 return 0;
279}
280
281#endif
282