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  */
  44 int 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
  51         if (!master)
  52                 return 0;
  53
  54         if (drm_core_check_feature(dev, DRIVER_USE_PLATFORM_DEVICE)) {
  55                 if (master->unique) {
  56                         seq_printf(m, "%s %s %s\n",
  57                                         dev->driver->platform_device->name,
  58                                         dev_name(dev->dev), master->unique);
  59                 } else {
  60                         seq_printf(m, "%s\n",
  61                                 dev->driver->platform_device->name);
  62                 }
  63         } else {
  64                 if (master->unique) {
  65                         seq_printf(m, "%s %s %s\n",
  66                                 dev->driver->pci_driver.name,
  67                                 dev_name(dev->dev), master->unique);
  68                 } else {
  69                         seq_printf(m, "%s %s\n", dev->driver->pci_driver.name,
  70                                 dev_name(dev->dev));
  71                 }
  72         }
  73
  74         return 0;
  75 }
  76
  77 /**
  78  * Called when "/proc/dri/.../vm" is read.
  79  *
  80  * Prints information about all mappings in drm_device::maplist.
  81  */
  82 int drm_vm_info(struct seq_file *m, void *data)
  83 {
  84         struct drm_info_node *node = (struct drm_info_node *) m->private;
  85         struct drm_device *dev = node->minor->dev;
  86         struct drm_local_map *map;
  87         struct drm_map_list *r_list;
  88
  89         /* Hardcoded from _DRM_FRAME_BUFFER,
  90            _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
  91            _DRM_SCATTER_GATHER and _DRM_CONSISTENT */
  92         const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" };
  93         const char *type;
  94         int i;
  95
  96         mutex_lock(&dev->struct_mutex);
  97         seq_printf(m, "slot      offset       size type flags    address mtrr\n\n");
  98         i = 0;
  99         list_for_each_entry(r_list, &dev->maplist, head) {
 100                 map = r_list->map;
 101                 if (!map)
 102                         continue;
 103                 if (map->type < 0 || map->type > 5)
 104                         type = "??";
 105                 else
 106                         type = types[map->type];
 107
 108                 seq_printf(m, "%4d 0x%016llx 0x%08lx %4.4s  0x%02x 0x%08lx ",
 109                            i,
 110                            (unsigned long long)map->offset,
 111                            map->size, type, map->flags,
 112                            (unsigned long) r_list->user_token);
 113                 if (map->mtrr < 0)
 114                         seq_printf(m, "none\n");
 115                 else
 116                         seq_printf(m, "%4d\n", map->mtrr);
 117                 i++;
 118         }
 119         mutex_unlock(&dev->struct_mutex);
 120         return 0;
 121 }
 122
 123 /**
 124  * Called when "/proc/dri/.../queues" is read.
 125  */
 126 int drm_queues_info(struct seq_file *m, void *data)
 127 {
 128         struct drm_info_node *node = (struct drm_info_node *) m->private;
 129         struct drm_device *dev = node->minor->dev;
 130         int i;
 131         struct drm_queue *q;
 132
 133         mutex_lock(&dev->struct_mutex);
 134         seq_printf(m, "  ctx/flags   use   fin"
 135                    "   blk/rw/rwf  wait    flushed         queued"
 136                    "      locks\n\n");
 137         for (i = 0; i < dev->queue_count; i++) {
 138                 q = dev->queuelist[i];
 139                 atomic_inc(&q->use_count);
 140                 seq_printf(m,   "%5d/0x%03x %5d %5d"
 141                            " %5d/%c%c/%c%c%c %5Zd\n",
 142                            i,
 143                            q->flags,
 144                            atomic_read(&q->use_count),
 145                            atomic_read(&q->finalization),
 146                            atomic_read(&q->block_count),
 147                            atomic_read(&q->block_read) ? 'r' : '-',
 148                            atomic_read(&q->block_write) ? 'w' : '-',
 149                            waitqueue_active(&q->read_queue) ? 'r' : '-',
 150                            waitqueue_active(&q->write_queue) ? 'w' : '-',
 151                            waitqueue_active(&q->flush_queue) ? 'f' : '-',
 152                            DRM_BUFCOUNT(&q->waitlist));
 153                 atomic_dec(&q->use_count);
 154         }
 155         mutex_unlock(&dev->struct_mutex);
 156         return 0;
 157 }
 158
 159 /**
 160  * Called when "/proc/dri/.../bufs" is read.
 161  */
 162 int drm_bufs_info(struct seq_file *m, void *data)
 163 {
 164         struct drm_info_node *node = (struct drm_info_node *) m->private;
 165         struct drm_device *dev = node->minor->dev;
 166         struct drm_device_dma *dma;
 167         int i, seg_pages;
 168
 169         mutex_lock(&dev->struct_mutex);
 170         dma = dev->dma;
 171         if (!dma) {
 172                 mutex_unlock(&dev->struct_mutex);
 173                 return 0;
 174         }
 175
 176         seq_printf(m, " o     size count  free   segs pages    kB\n\n");
 177         for (i = 0; i <= DRM_MAX_ORDER; i++) {
 178                 if (dma->bufs[i].buf_count) {
 179                         seg_pages = dma->bufs[i].seg_count * (1 << dma->bufs[i].page_order);
 180                         seq_printf(m, "%2d %8d %5d %5d %5d %5d %5ld\n",
 181                                    i,
 182                                    dma->bufs[i].buf_size,
 183                                    dma->bufs[i].buf_count,
 184                                    atomic_read(&dma->bufs[i].freelist.count),
 185                                    dma->bufs[i].seg_count,
 186                                    seg_pages,
 187                                    seg_pages * PAGE_SIZE / 1024);
 188                 }
 189         }
 190         seq_printf(m, "\n");
 191         for (i = 0; i < dma->buf_count; i++) {
 192                 if (i && !(i % 32))
 193                         seq_printf(m, "\n");
 194                 seq_printf(m, " %d", dma->buflist[i]->list);
 195         }
 196         seq_printf(m, "\n");
 197         mutex_unlock(&dev->struct_mutex);
 198         return 0;
 199 }
 200
 201 /**
 202  * Called when "/proc/dri/.../vblank" is read.
 203  */
 204 int drm_vblank_info(struct seq_file *m, void *data)
 205 {
 206         struct drm_info_node *node = (struct drm_info_node *) m->private;
 207         struct drm_device *dev = node->minor->dev;
 208         int crtc;
 209
 210         mutex_lock(&dev->struct_mutex);
 211         for (crtc = 0; crtc < dev->num_crtcs; crtc++) {
 212                 seq_printf(m, "CRTC %d enable:     %d\n",
 213                            crtc, atomic_read(&dev->vblank_refcount[crtc]));
 214                 seq_printf(m, "CRTC %d counter:    %d\n",
 215                            crtc, drm_vblank_count(dev, crtc));
 216                 seq_printf(m, "CRTC %d last wait:  %d\n",
 217                            crtc, dev->last_vblank_wait[crtc]);
 218                 seq_printf(m, "CRTC %d in modeset: %d\n",
 219                            crtc, dev->vblank_inmodeset[crtc]);
 220         }
 221         mutex_unlock(&dev->struct_mutex);
 222         return 0;
 223 }
 224
 225 /**
 226  * Called when "/proc/dri/.../clients" is read.
 227  *
 228  */
 229 int drm_clients_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_file *priv;
 234
 235         mutex_lock(&dev->struct_mutex);
 236         seq_printf(m, "a dev    pid    uid      magic     ioctls\n\n");
 237         list_for_each_entry(priv, &dev->filelist, lhead) {
 238                 seq_printf(m, "%c %3d %5d %5d %10u %10lu\n",
 239                            priv->authenticated ? 'y' : 'n',
 240                            priv->minor->index,
 241                            priv->pid,
 242                            priv->uid, priv->magic, priv->ioctl_count);
 243         }
 244         mutex_unlock(&dev->struct_mutex);
 245         return 0;
 246 }
 247
 248
 249 int drm_gem_one_name_info(int id, void *ptr, void *data)
 250 {
 251         struct drm_gem_object *obj = ptr;
 252         struct seq_file *m = data;
 253
 254         seq_printf(m, "name %d size %zd\n", obj->name, obj->size);
 255
 256         seq_printf(m, "%6d %8zd %7d %8d\n",
 257                    obj->name, obj->size,
 258                    atomic_read(&obj->handlecount.refcount),
 259                    atomic_read(&obj->refcount.refcount));
 260         return 0;
 261 }
 262
 263 int drm_gem_name_info(struct seq_file *m, void *data)
 264 {
 265         struct drm_info_node *node = (struct drm_info_node *) m->private;
 266         struct drm_device *dev = node->minor->dev;
 267
 268         seq_printf(m, "  name     size handles refcount\n");
 269         idr_for_each(&dev->object_name_idr, drm_gem_one_name_info, m);
 270         return 0;
 271 }
 272
 273 int drm_gem_object_info(struct seq_file *m, void* data)
 274 {
 275         struct drm_info_node *node = (struct drm_info_node *) m->private;
 276         struct drm_device *dev = node->minor->dev;
 277
 278         seq_printf(m, "%d objects\n", atomic_read(&dev->object_count));
 279         seq_printf(m, "%d object bytes\n", atomic_read(&dev->object_memory));
 280         seq_printf(m, "%d pinned\n", atomic_read(&dev->pin_count));
 281         seq_printf(m, "%d pin bytes\n", atomic_read(&dev->pin_memory));
 282         seq_printf(m, "%d gtt bytes\n", atomic_read(&dev->gtt_memory));
 283         seq_printf(m, "%d gtt total\n", dev->gtt_total);
 284         return 0;
 285 }
 286
 287 #if DRM_DEBUG_CODE
 288
 289 int drm_vma_info(struct seq_file *m, void *data)
 290 {
 291         struct drm_info_node *node = (struct drm_info_node *) m->private;
 292         struct drm_device *dev = node->minor->dev;
 293         struct drm_vma_entry *pt;
 294         struct vm_area_struct *vma;
 295 #if defined(__i386__)
 296         unsigned int pgprot;
 297 #endif
 298
 299         mutex_lock(&dev->struct_mutex);
 300         seq_printf(m, "vma use count: %d, high_memory = %p, 0x%08llx\n",
 301                    atomic_read(&dev->vma_count),
 302                    high_memory, (u64)virt_to_phys(high_memory));
 303
 304         list_for_each_entry(pt, &dev->vmalist, head) {
 305                 vma = pt->vma;
 306                 if (!vma)
 307                         continue;
 308                 seq_printf(m,
 309                            "\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx000",
 310                            pt->pid, vma->vm_start, vma->vm_end,
 311                            vma->vm_flags & VM_READ ? 'r' : '-',
 312                            vma->vm_flags & VM_WRITE ? 'w' : '-',
 313                            vma->vm_flags & VM_EXEC ? 'x' : '-',
 314                            vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
 315                            vma->vm_flags & VM_LOCKED ? 'l' : '-',
 316                            vma->vm_flags & VM_IO ? 'i' : '-',
 317                            vma->vm_pgoff);
 318
 319 #if defined(__i386__)
 320                 pgprot = pgprot_val(vma->vm_page_prot);
 321                 seq_printf(m, " %c%c%c%c%c%c%c%c%c",
 322                            pgprot & _PAGE_PRESENT ? 'p' : '-',
 323                            pgprot & _PAGE_RW ? 'w' : 'r',
 324                            pgprot & _PAGE_USER ? 'u' : 's',
 325                            pgprot & _PAGE_PWT ? 't' : 'b',
 326                            pgprot & _PAGE_PCD ? 'u' : 'c',
 327                            pgprot & _PAGE_ACCESSED ? 'a' : '-',
 328                            pgprot & _PAGE_DIRTY ? 'd' : '-',
 329                            pgprot & _PAGE_PSE ? 'm' : 'k',
 330                            pgprot & _PAGE_GLOBAL ? 'g' : 'l');
 331 #endif
 332                 seq_printf(m, "\n");
 333         }
 334         mutex_unlock(&dev->struct_mutex);
 335         return 0;
 336 }
 337
 338 #endif
 339