summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/drm_info.c
blob: 441ebc1bdbef5455c6a8cc7aa34103926dd963fa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
/**
 * \file drm_info.c
 * DRM info file implementations
 *
 * \author Ben Gamari <bgamari@gmail.com>
 */

/*
 * Created: Sun Dec 21 13:09:50 2008 by bgamari@gmail.com
 *
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * Copyright 2008 Ben Gamari <bgamari@gmail.com>
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#include <linux/seq_file.h>
#include <drm/drmP.h>

/**
 * Called when "/proc/dri/.../name" is read.
 *
 * Prints the device name together with the bus id if available.
 */
int drm_name_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct drm_minor *minor = node->minor;
	struct drm_device *dev = minor->dev;
	struct drm_master *master = minor->master;
	const char *bus_name;
	if (!master)
		return 0;

	bus_name = dev->driver->bus->get_name(dev);
	if (master->unique) {
		seq_printf(m, "%s %s %s\n",
			   bus_name,
			   dev_name(dev->dev), master->unique);
	} else {
		seq_printf(m, "%s %s\n",
			   bus_name, dev_name(dev->dev));
	}
	return 0;
}

/**
 * Called when "/proc/dri/.../vm" is read.
 *
 * Prints information about all mappings in drm_device::maplist.
 */
int drm_vm_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct drm_device *dev = node->minor->dev;
	struct drm_local_map *map;
	struct drm_map_list *r_list;

	/* Hardcoded from _DRM_FRAME_BUFFER,
	   _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
	   _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
	const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
	const char *type;
	int i;

	mutex_lock(&dev->struct_mutex);
	seq_printf(m, "slot	 offset	      size type flags	 address mtrr\n\n");
	i = 0;
	list_for_each_entry(r_list, &dev->maplist, head) {
		map = r_list->map;
		if (!map)
			continue;
		if (map->type < 0 || map->type > 5)
			type = "??";
		else
			type = types[map->type];

		seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s  0x%02x 0x%08lx ",
			   i,
			   (unsigned long long)map->offset,
			   map->size, type, map->flags,
			   (unsigned long) r_list->user_token);
		if (map->mtrr < 0)
			seq_printf(m, "none\n");
		else
			seq_printf(m, "%4d\n", map->mtrr);
		i++;
	}
	mutex_unlock(&dev->struct_mutex);
	return 0;
}

/**
 * Called when "/proc/dri/.../bufs" is read.
 */
int drm_bufs_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct drm_device *dev = node->minor->dev;
	struct drm_device_dma *dma;
	int i, seg_pages;

	mutex_lock(&dev->struct_mutex);
	dma = dev->dma;
	if (!dma) {
		mutex_unlock(&dev->struct_mutex);
		return 0;
	}

	seq_printf(m, " o     size count  free	 segs pages    kB\n\n");
	for (i = 0; i <= DRM_MAX_ORDER; i++) {
		if (dma->bufs[i].buf_count) {
			seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
			seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
				   i,
				   dma->bufs[i].buf_size,
				   dma->bufs[i].buf_count,
				   atomic_read(&dma->bufs[i].freelist.count),
				   dma->bufs[i].seg_count,
				   seg_pages,
				   seg_pages * PAGE_SIZE / 1024);
		}
	}
	seq_printf(m, "\n");
	for (i = 0; i < dma->buf_count; i++) {
		if (i && !(i % 32))
			seq_printf(m, "\n");
		seq_printf(m, " %d", dma->buflist[i]->list);
	}
	seq_printf(m, "\n");
	mutex_unlock(&dev->struct_mutex);
	return 0;
}

/**
 * Called when "/proc/dri/.../vblank" is read.
 */
int drm_vblank_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct drm_device *dev = node->minor->dev;
	int crtc;

	mutex_lock(&dev->struct_mutex);
	for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
		seq_printf(m, "CRTC %d enable:     %d\n",
			   crtc, atomic_read(&dev->vblank_refcount[crtc]));
		seq_printf(m, "CRTC %d counter:    %d\n",
			   crtc, drm_vblank_count(dev, crtc));
		seq_printf(m, "CRTC %d last wait:  %d\n",
			   crtc, dev->last_vblank_wait[crtc]);
		seq_printf(m, "CRTC %d in modeset: %d\n",
			   crtc, dev->vblank_inmodeset[crtc]);
	}
	mutex_unlock(&dev->struct_mutex);
	return 0;
}

/**
 * Called when "/proc/dri/.../clients" is read.
 *
 */
int drm_clients_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct drm_device *dev = node->minor->dev;
	struct drm_file *priv;

	mutex_lock(&dev->struct_mutex);
	seq_printf(m, "a dev	pid    uid	magic	  ioctls\n\n");
	list_for_each_entry(priv, &dev->filelist, lhead) {
		seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
			   priv->authenticated ? 'y' : 'n',
			   priv->minor->index,
			   pid_vnr(priv->pid),
			   from_kuid_munged(seq_user_ns(m), priv->uid),
			   priv->magic, priv->ioctl_count);
	}
	mutex_unlock(&dev->struct_mutex);
	return 0;
}


static int drm_gem_one_name_info(int id, void *ptr, void *data)
{
	struct drm_gem_object *obj = ptr;
	struct seq_file *m = data;

	seq_printf(m, "name %d size %zd\n", obj->name, obj->size);

	seq_printf(m, "%6d %8zd %7d %8d\n",
		   obj->name, obj->size,
		   atomic_read(&obj->handle_count),
		   atomic_read(&obj->refcount.refcount));
	return 0;
}

int drm_gem_name_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct drm_device *dev = node->minor->dev;

	seq_printf(m, "  name     size handles refcount\n");
	idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
	return 0;
}

#if DRM_DEBUG_CODE

int drm_vma_info(struct seq_file *m, void *data)
{
	struct drm_info_node *node = (struct drm_info_node *) m->private;
	struct drm_device *dev = node->minor->dev;
	struct drm_vma_entry *pt;
	struct vm_area_struct *vma;
#if defined(__i386__)
	unsigned int pgprot;
#endif

	mutex_lock(&dev->struct_mutex);
	seq_printf(m, "vma use count: %d, high_memory = %pK, 0x%pK\n",
		   atomic_read(&dev->vma_count),
		   high_memory, (void *)(unsigned long)virt_to_phys(high_memory));

	list_for_each_entry(pt, &dev->vmalist, head) {
		vma = pt->vma;
		if (!vma)
			continue;
		seq_printf(m,
			   "\n%5d 0x%pK-0x%pK %c%c%c%c%c%c 0x%08lx000",
			   pt->pid,
			   (void *)vma->vm_start, (void *)vma->vm_end,
			   vma->vm_flags & VM_READ ? 'r' : '-',
			   vma->vm_flags & VM_WRITE ? 'w' : '-',
			   vma->vm_flags & VM_EXEC ? 'x' : '-',
			   vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
			   vma->vm_flags & VM_LOCKED ? 'l' : '-',
			   vma->vm_flags & VM_IO ? 'i' : '-',
			   vma->vm_pgoff);

#if defined(__i386__)
		pgprot = pgprot_val(vma->vm_page_prot);
		seq_printf(m, " %c%c%c%c%c%c%c%c%c",
			   pgprot & _PAGE_PRESENT ? 'p' : '-',
			   pgprot & _PAGE_RW ? 'w' : 'r',
			   pgprot & _PAGE_USER ? 'u' : 's',
			   pgprot & _PAGE_PWT ? 't' : 'b',
			   pgprot & _PAGE_PCD ? 'u' : 'c',
			   pgprot & _PAGE_ACCESSED ? 'a' : '-',
			   pgprot & _PAGE_DIRTY ? 'd' : '-',
			   pgprot & _PAGE_PSE ? 'm' : 'k',
			   pgprot & _PAGE_GLOBAL ? 'g' : 'l');
#endif
		seq_printf(m, "\n");
	}
	mutex_unlock(&dev->struct_mutex);
	return 0;
}

#endif