bsd-core/drm_sysctl.c

   1 /*
   2  * Copyright 2003 Eric Anholt
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #ifdef __FreeBSD__
  26
  27 #include <sys/sysctl.h>
  28
  29 static int         DRM(name_info)DRM_SYSCTL_HANDLER_ARGS;
  30 static int         DRM(vm_info)DRM_SYSCTL_HANDLER_ARGS;
  31 static int         DRM(clients_info)DRM_SYSCTL_HANDLER_ARGS;
  32 static int         DRM(bufs_info)DRM_SYSCTL_HANDLER_ARGS;
  33
  34 struct DRM(sysctl_list) {
  35         const char *name;
  36         int        (*f) DRM_SYSCTL_HANDLER_ARGS;
  37 } DRM(sysctl_list)[] = {
  38         { "name",    DRM(name_info)    },
  39 #ifdef DEBUG_MEMORY
  40         { "mem",     DRM(mem_info)     },
  41 #endif
  42         { "vm",      DRM(vm_info)      },
  43         { "clients", DRM(clients_info) },
  44 #if __HAVE_DMA
  45         { "bufs",    DRM(bufs_info)    },
  46 #endif
  47 };
  48 #define DRM_SYSCTL_ENTRIES (sizeof(DRM(sysctl_list))/sizeof(DRM(sysctl_list)[0]))
  49
  50 struct drm_sysctl_info {
  51         struct sysctl_ctx_list ctx;
  52         char                   name[2];
  53 };
  54
  55 int DRM(sysctl_init)(drm_device_t *dev)
  56 {
  57         struct drm_sysctl_info *info;
  58         struct sysctl_oid *oid;
  59         struct sysctl_oid *top, *drioid;
  60         int               i;
  61
  62         info = DRM(alloc)(sizeof *info, DRM_MEM_DRIVER);
  63         if ( !info )
  64                 return 1;
  65         bzero(info, sizeof *info);
  66         dev->sysctl = info;
  67
  68         /* Add the sysctl node for DRI if it doesn't already exist */
  69         drioid = SYSCTL_ADD_NODE( &info->ctx, &sysctl__hw_children, OID_AUTO, "dri", CTLFLAG_RW, NULL, "DRI Graphics");
  70         if (!drioid)
  71                 return 1;
  72
  73         /* Find the next free slot under hw.dri */
  74         i = 0;
  75         SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) {
  76                 if (i <= oid->oid_arg2)
  77                         i = oid->oid_arg2 + 1;
  78         }
  79         if (i>9)
  80                 return 1;
  81
  82         /* Add the hw.dri.x for our device */
  83         info->name[0] = '0' + i;
  84         info->name[1] = 0;
  85         top = SYSCTL_ADD_NODE( &info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL);
  86         if (!top)
  87                 return 1;
  88
  89         for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) {
  90                 oid = sysctl_add_oid( &info->ctx,
  91                         SYSCTL_CHILDREN(top),
  92                         OID_AUTO,
  93                         DRM(sysctl_list)[i].name,
  94                         CTLTYPE_INT | CTLFLAG_RD,
  95                         dev,
  96                         0,
  97                         DRM(sysctl_list)[i].f,
  98                         "A",
  99                         NULL);
 100                 if (!oid)
 101                         return 1;
 102         }
 103         return 0;
 104 }
 105
 106 int DRM(sysctl_cleanup)(drm_device_t *dev)
 107 {
 108         int error;
 109         error = sysctl_ctx_free( &dev->sysctl->ctx );
 110
 111         DRM(free)(dev->sysctl, sizeof *dev->sysctl, DRM_MEM_DRIVER);
 112         dev->sysctl = NULL;
 113
 114         return error;
 115 }
 116
 117 #define DRM_SYSCTL_PRINT(fmt, arg...)                           \
 118 do {                                                            \
 119         snprintf(buf, sizeof(buf), fmt, ##arg);                 \
 120         retcode = SYSCTL_OUT(req, buf, strlen(buf));            \
 121         if (retcode)                                            \
 122                 goto done;                                      \
 123 } while (0)
 124
 125 static int DRM(name_info)DRM_SYSCTL_HANDLER_ARGS
 126 {
 127         drm_device_t *dev = arg1;
 128         char buf[128];
 129         int retcode;
 130         int hasunique = 0;
 131
 132         DRM_SYSCTL_PRINT("%s 0x%x", dev->name, dev2udev(dev->devnode));
 133
 134         DRM_LOCK();
 135         if (dev->unique) {
 136                 snprintf(buf, sizeof(buf), " %s", dev->unique);
 137                 hasunique = 1;
 138         }
 139         DRM_UNLOCK();
 140
 141         if (hasunique)
 142                 SYSCTL_OUT(req, buf, strlen(buf));
 143
 144         SYSCTL_OUT(req, "", 1);
 145
 146 done:
 147         return retcode;
 148 }
 149
 150 static int DRM(vm_info)DRM_SYSCTL_HANDLER_ARGS
 151 {
 152         drm_device_t *dev = arg1;
 153         drm_local_map_t *map, *tempmaps;
 154         drm_map_list_entry_t    *listentry;
 155         const char   *types[] = { "FB", "REG", "SHM", "AGP", "SG" };
 156         const char *type, *yesno;
 157         int i, mapcount;
 158         char buf[128];
 159         int retcode;
 160
 161         /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a
 162          * temporary copy of all the map entries and then SYSCTL_OUT that.
 163          */
 164         DRM_LOCK();
 165
 166         mapcount = 0;
 167         TAILQ_FOREACH(listentry, dev->maplist, link)
 168                 mapcount++;
 169
 170         tempmaps = DRM(alloc)(sizeof(drm_local_map_t) * mapcount, DRM_MEM_MAPS);
 171         if (tempmaps == NULL) {
 172                 DRM_UNLOCK();
 173                 return ENOMEM;
 174         }
 175
 176         i = 0;
 177         TAILQ_FOREACH(listentry, dev->maplist, link)
 178                 tempmaps[i++] = *listentry->map;
 179
 180         DRM_UNLOCK();
 181
 182         DRM_SYSCTL_PRINT("\nslot         offset       size type flags    "
 183                          "address mtrr\n");
 184
 185         for (i = 0; i < mapcount; i++) {
 186                 map = &tempmaps[i];
 187
 188                 if (map->type < 0 || map->type > 4)
 189                         type = "??";
 190                 else
 191                         type = types[map->type];
 192
 193                 if (map->mtrr <= 0)
 194                         yesno = "no";
 195                 else
 196                         yesno = "yes";
 197
 198                 DRM_SYSCTL_PRINT(
 199                     "%4d 0x%08lx 0x%08lx %4.4s  0x%02x 0x%08lx %s\n", i,
 200                     map->offset, map->size, type, map->flags,
 201                     (unsigned long)map->handle, yesno);
 202         }
 203         SYSCTL_OUT(req, "", 1);
 204
 205 done:
 206         DRM(free)(tempmaps, sizeof(drm_local_map_t) * mapcount, DRM_MEM_MAPS);
 207         return retcode;
 208 }
 209
 210 #if __HAVE_DMA
 211 static int DRM(bufs_info) DRM_SYSCTL_HANDLER_ARGS
 212 {
 213         drm_device_t     *dev = arg1;
 214         drm_device_dma_t *dma = dev->dma;
 215         drm_device_dma_t tempdma;
 216         int *templists;
 217         int i;
 218         char buf[128];
 219         int retcode;
 220
 221         /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary
 222          * copy of the whole structure and the relevant data from buflist.
 223          */
 224         DRM_LOCK();
 225         DRM_SPINLOCK(&dev->dma_lock);
 226         if (dma == NULL) {
 227                 DRM_SPINUNLOCK(&dev->dma_lock);
 228                 DRM_UNLOCK();
 229                 return 0;
 230         }
 231         tempdma = *dma;
 232         templists = DRM(alloc)(sizeof(int) * dma->buf_count, DRM_MEM_BUFS);
 233         for (i = 0; i < dma->buf_count; i++)
 234                 templists[i] = dma->buflist[i]->list;
 235         dma = &tempdma;
 236         DRM_SPINUNLOCK(&dev->dma_lock);
 237         DRM_UNLOCK();
 238
 239         DRM_SYSCTL_PRINT("\n o     size count  free      segs pages    kB\n");
 240         for (i = 0; i <= DRM_MAX_ORDER; i++) {
 241                 if (dma->bufs[i].buf_count)
 242                         DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n",
 243                                        i,
 244                                        dma->bufs[i].buf_size,
 245                                        dma->bufs[i].buf_count,
 246                                        atomic_read(&dma->bufs[i]
 247                                                    .freelist.count),
 248                                        dma->bufs[i].seg_count,
 249                                        dma->bufs[i].seg_count
 250                                        *(1 << dma->bufs[i].page_order),
 251                                        (dma->bufs[i].seg_count
 252                                         * (1 << dma->bufs[i].page_order))
 253                                        * PAGE_SIZE / 1024);
 254         }
 255         DRM_SYSCTL_PRINT("\n");
 256         for (i = 0; i < dma->buf_count; i++) {
 257                 if (i && !(i%32)) DRM_SYSCTL_PRINT("\n");
 258                 DRM_SYSCTL_PRINT(" %d", templists[i]);
 259         }
 260         DRM_SYSCTL_PRINT("\n");
 261
 262         SYSCTL_OUT(req, "", 1);
 263 done:
 264         DRM(free)(templists, sizeof(int) * dma->buf_count, DRM_MEM_BUFS);
 265         return retcode;
 266 }
 267 #endif
 268
 269 static int DRM(clients_info)DRM_SYSCTL_HANDLER_ARGS
 270 {
 271         drm_device_t *dev = arg1;
 272         drm_file_t *priv, *tempprivs;
 273         char buf[128];
 274         int retcode;
 275         int privcount, i;
 276
 277         DRM_LOCK();
 278
 279         privcount = 0;
 280         TAILQ_FOREACH(priv, &dev->files, link)
 281                 privcount++;
 282
 283         tempprivs = DRM(alloc)(sizeof(drm_file_t) * privcount, DRM_MEM_FILES);
 284         if (tempprivs == NULL) {
 285                 DRM_UNLOCK();
 286                 return ENOMEM;
 287         }
 288         i = 0;
 289         TAILQ_FOREACH(priv, &dev->files, link)
 290                 tempprivs[i++] = *priv;
 291
 292         DRM_UNLOCK();
 293
 294         DRM_SYSCTL_PRINT("\na dev       pid    uid      magic     ioctls\n");
 295         for (i = 0; i < privcount; i++) {
 296                 priv = &tempprivs[i];
 297                 DRM_SYSCTL_PRINT("%c %3d %5d %5d %10u %10lu\n",
 298                                priv->authenticated ? 'y' : 'n',
 299                                priv->minor,
 300                                priv->pid,
 301                                priv->uid,
 302                                priv->magic,
 303                                priv->ioctl_count);
 304         }
 305
 306         SYSCTL_OUT(req, "", 1);
 307 done:
 308         DRM(free)(tempprivs, sizeof(drm_file_t) * privcount, DRM_MEM_FILES);
 309         return retcode;
 310 }
 311
 312 #elif defined(__NetBSD__)
 313 /* stub it out for now, sysctl is only for debugging */
 314 int DRM(sysctl_init)(drm_device_t *dev)
 315 {
 316         return 0;
 317 }
 318
 319 int DRM(sysctl_cleanup)(drm_device_t *dev)
 320 {
 321         return 0;
 322 }
 323 #endif