Root/drivers/gpu/drm/drm_info.c

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/.../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",
166               crtc, atomic_read(&dev->vblank_refcount[crtc]));
167        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",
170               crtc, dev->last_vblank_wait[crtc]);
171        seq_printf(m, "CRTC %d in modeset: %d\n",
172               crtc, dev->vblank_inmodeset[crtc]);
173    }
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,
194               priv->pid,
195               priv->uid, priv->magic, priv->ioctl_count);
196    }
197    mutex_unlock(&dev->struct_mutex);
198    return 0;
199}
200
201
202static int drm_gem_one_name_info(int id, void *ptr, void *data)
203{
204    struct drm_gem_object *obj = ptr;
205    struct seq_file *m = data;
206
207    seq_printf(m, "name %d size %zd\n", obj->name, obj->size);
208
209    seq_printf(m, "%6d %8zd %7d %8d\n",
210           obj->name, obj->size,
211           atomic_read(&obj->handle_count),
212           atomic_read(&obj->refcount.refcount));
213    return 0;
214}
215
216int drm_gem_name_info(struct seq_file *m, void *data)
217{
218    struct drm_info_node *node = (struct drm_info_node *) m->private;
219    struct drm_device *dev = node->minor->dev;
220
221    seq_printf(m, " name size handles refcount\n");
222    idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
223    return 0;
224}
225
226#if DRM_DEBUG_CODE
227
228int drm_vma_info(struct seq_file *m, void *data)
229{
230    struct drm_info_node *node = (struct drm_info_node *) m->private;
231    struct drm_device *dev = node->minor->dev;
232    struct drm_vma_entry *pt;
233    struct vm_area_struct *vma;
234#if defined(__i386__)
235    unsigned int pgprot;
236#endif
237
238    mutex_lock(&dev->struct_mutex);
239    seq_printf(m, "vma use count: %d, high_memory = %pK, 0x%pK\n",
240           atomic_read(&dev->vma_count),
241           high_memory, (void *)virt_to_phys(high_memory));
242
243    list_for_each_entry(pt, &dev->vmalist, head) {
244        vma = pt->vma;
245        if (!vma)
246            continue;
247        seq_printf(m,
248               "\n%5d 0x%pK-0x%pK %c%c%c%c%c%c 0x%08lx000",
249               pt->pid,
250               (void *)vma->vm_start, (void *)vma->vm_end,
251               vma->vm_flags & VM_READ ? 'r' : '-',
252               vma->vm_flags & VM_WRITE ? 'w' : '-',
253               vma->vm_flags & VM_EXEC ? 'x' : '-',
254               vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
255               vma->vm_flags & VM_LOCKED ? 'l' : '-',
256               vma->vm_flags & VM_IO ? 'i' : '-',
257               vma->vm_pgoff);
258
259#if defined(__i386__)
260        pgprot = pgprot_val(vma->vm_page_prot);
261        seq_printf(m, " %c%c%c%c%c%c%c%c%c",
262               pgprot & _PAGE_PRESENT ? 'p' : '-',
263               pgprot & _PAGE_RW ? 'w' : 'r',
264               pgprot & _PAGE_USER ? 'u' : 's',
265               pgprot & _PAGE_PWT ? 't' : 'b',
266               pgprot & _PAGE_PCD ? 'u' : 'c',
267               pgprot & _PAGE_ACCESSED ? 'a' : '-',
268               pgprot & _PAGE_DIRTY ? 'd' : '-',
269               pgprot & _PAGE_PSE ? 'm' : 'k',
270               pgprot & _PAGE_GLOBAL ? 'g' : 'l');
271#endif
272        seq_printf(m, "\n");
273    }
274    mutex_unlock(&dev->struct_mutex);
275    return 0;
276}
277
278#endif
279
280

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