tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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
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 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 */
69int 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 */
113int 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 */
155int 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 */
180int 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
201static 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
213int 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}
226
227#if DRM_DEBUG_CODE
228
229int drm_vma_info(struct seq_file *m, void *data)
230{
231 struct drm_info_node *node = (struct drm_info_node *) m->private;
232 struct drm_device *dev = node->minor->dev;
233 struct drm_vma_entry *pt;
234 struct vm_area_struct *vma;
235 unsigned long vma_count = 0;
236#if defined(__i386__)
237 unsigned int pgprot;
238#endif
239
240 mutex_lock(&dev->struct_mutex);
241 list_for_each_entry(pt, &dev->vmalist, head)
242 vma_count++;
243
244 seq_printf(m, "vma use count: %lu, high_memory = %pK, 0x%pK\n",
245 vma_count, high_memory,
246 (void *)(unsigned long)virt_to_phys(high_memory));
247
248 list_for_each_entry(pt, &dev->vmalist, head) {
249 vma = pt->vma;
250 if (!vma)
251 continue;
252 seq_printf(m,
253 "\n%5d 0x%pK-0x%pK %c%c%c%c%c%c 0x%08lx000",
254 pt->pid,
255 (void *)vma->vm_start, (void *)vma->vm_end,
256 vma->vm_flags & VM_READ ? 'r' : '-',
257 vma->vm_flags & VM_WRITE ? 'w' : '-',
258 vma->vm_flags & VM_EXEC ? 'x' : '-',
259 vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
260 vma->vm_flags & VM_LOCKED ? 'l' : '-',
261 vma->vm_flags & VM_IO ? 'i' : '-',
262 vma->vm_pgoff);
263
264#if defined(__i386__)
265 pgprot = pgprot_val(vma->vm_page_prot);
266 seq_printf(m, " %c%c%c%c%c%c%c%c%c",
267 pgprot & _PAGE_PRESENT ? 'p' : '-',
268 pgprot & _PAGE_RW ? 'w' : 'r',
269 pgprot & _PAGE_USER ? 'u' : 's',
270 pgprot & _PAGE_PWT ? 't' : 'b',
271 pgprot & _PAGE_PCD ? 'u' : 'c',
272 pgprot & _PAGE_ACCESSED ? 'a' : '-',
273 pgprot & _PAGE_DIRTY ? 'd' : '-',
274 pgprot & _PAGE_PSE ? 'm' : 'k',
275 pgprot & _PAGE_GLOBAL ? 'g' : 'l');
276#endif
277 seq_printf(m, "\n");
278 }
279 mutex_unlock(&dev->struct_mutex);
280 return 0;
281}
282
283#endif
284