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.
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17 * copy of this software and associated documentation files (the "Software"),
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21 * Software is furnished to do so, subject to the following conditions:
23 * The above copyright notice and this permission notice (including the next
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27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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36 #include <linux/seq_file.h>
38 #include "drm_legacy.h"
41 * Called when "/proc/dri/.../name" is read.
43 * Prints the device name together with the bus id if available.
45 int drm_name_info(struct seq_file *m, void *data)
47 struct drm_info_node *node = (struct drm_info_node *) m->private;
48 struct drm_minor *minor = node->minor;
49 struct drm_device *dev = minor->dev;
50 struct drm_master *master = minor->master;
55 seq_printf(m, "%s %s %s\n",
57 dev_name(dev->dev), master->unique);
59 seq_printf(m, "%s %s\n",
60 dev->driver->name, dev_name(dev->dev));
66 * Called when "/proc/dri/.../vm" is read.
68 * Prints information about all mappings in drm_device::maplist.
70 int drm_vm_info(struct seq_file *m, void *data)
72 struct drm_info_node *node = (struct drm_info_node *) m->private;
73 struct drm_device *dev = node->minor->dev;
74 struct drm_local_map *map;
75 struct drm_map_list *r_list;
77 /* Hardcoded from _DRM_FRAME_BUFFER,
78 _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
79 _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
80 const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
84 mutex_lock(&dev->struct_mutex);
85 seq_printf(m, "slot offset size type flags address mtrr\n\n");
87 list_for_each_entry(r_list, &dev->maplist, head) {
91 if (map->type < 0 || map->type > 5)
94 type = types[map->type];
96 seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%08lx ",
98 (unsigned long long)map->offset,
99 map->size, type, map->flags,
100 (unsigned long) r_list->user_token);
102 seq_printf(m, "none\n");
104 seq_printf(m, "%4d\n", map->mtrr);
107 mutex_unlock(&dev->struct_mutex);
112 * Called when "/proc/dri/.../bufs" is read.
114 int drm_bufs_info(struct seq_file *m, void *data)
116 struct drm_info_node *node = (struct drm_info_node *) m->private;
117 struct drm_device *dev = node->minor->dev;
118 struct drm_device_dma *dma;
121 mutex_lock(&dev->struct_mutex);
124 mutex_unlock(&dev->struct_mutex);
128 seq_printf(m, " o size count free segs pages kB\n\n");
129 for (i = 0; i <= DRM_MAX_ORDER; i++) {
130 if (dma->bufs[i].buf_count) {
131 seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
132 seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
134 dma->bufs[i].buf_size,
135 dma->bufs[i].buf_count,
137 dma->bufs[i].seg_count,
139 seg_pages * PAGE_SIZE / 1024);
143 for (i = 0; i < dma->buf_count; i++) {
146 seq_printf(m, " %d", dma->buflist[i]->list);
149 mutex_unlock(&dev->struct_mutex);
154 * Called when "/proc/dri/.../vblank" is read.
156 int drm_vblank_info(struct seq_file *m, void *data)
158 struct drm_info_node *node = (struct drm_info_node *) m->private;
159 struct drm_device *dev = node->minor->dev;
162 mutex_lock(&dev->struct_mutex);
163 for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
164 seq_printf(m, "CRTC %d enable: %d\n",
165 crtc, atomic_read(&dev->vblank[crtc].refcount));
166 seq_printf(m, "CRTC %d counter: %d\n",
167 crtc, drm_vblank_count(dev, crtc));
168 seq_printf(m, "CRTC %d last wait: %d\n",
169 crtc, dev->vblank[crtc].last_wait);
170 seq_printf(m, "CRTC %d in modeset: %d\n",
171 crtc, dev->vblank[crtc].inmodeset);
173 mutex_unlock(&dev->struct_mutex);
178 * Called when "/proc/dri/.../clients" is read.
181 int drm_clients_info(struct seq_file *m, void *data)
183 struct drm_info_node *node = (struct drm_info_node *) m->private;
184 struct drm_device *dev = node->minor->dev;
185 struct drm_file *priv;
188 "%20s %5s %3s master a %5s %10s\n",
195 /* dev->filelist is sorted youngest first, but we want to present
196 * oldest first (i.e. kernel, servers, clients), so walk backwardss.
198 mutex_lock(&dev->struct_mutex);
199 list_for_each_entry_reverse(priv, &dev->filelist, lhead) {
200 struct task_struct *task;
202 rcu_read_lock(); /* locks pid_task()->comm */
203 task = pid_task(priv->pid, PIDTYPE_PID);
204 seq_printf(m, "%20s %5d %3d %c %c %5d %10u\n",
205 task ? task->comm : "<unknown>",
208 priv->is_master ? 'y' : 'n',
209 priv->authenticated ? 'y' : 'n',
210 from_kuid_munged(seq_user_ns(m), priv->uid),
214 mutex_unlock(&dev->struct_mutex);
219 static int drm_gem_one_name_info(int id, void *ptr, void *data)
221 struct drm_gem_object *obj = ptr;
222 struct seq_file *m = data;
224 seq_printf(m, "%6d %8zd %7d %8d\n",
225 obj->name, obj->size,
227 atomic_read(&obj->refcount.refcount));
231 int drm_gem_name_info(struct seq_file *m, void *data)
233 struct drm_info_node *node = (struct drm_info_node *) m->private;
234 struct drm_device *dev = node->minor->dev;
236 seq_printf(m, " name size handles refcount\n");
238 mutex_lock(&dev->object_name_lock);
239 idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
240 mutex_unlock(&dev->object_name_lock);