1235783Skib/*- 2235783Skib * Copyright 2003 Eric Anholt 3235783Skib * All Rights Reserved. 4235783Skib * 5235783Skib * Permission is hereby granted, free of charge, to any person obtaining a 6235783Skib * copy of this software and associated documentation files (the "Software"), 7235783Skib * to deal in the Software without restriction, including without limitation 8235783Skib * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9235783Skib * and/or sell copies of the Software, and to permit persons to whom the 10235783Skib * Software is furnished to do so, subject to the following conditions: 11280183Sdumbbell * 12235783Skib * The above copyright notice and this permission notice (including the next 13235783Skib * paragraph) shall be included in all copies or substantial portions of the 14235783Skib * Software. 15280183Sdumbbell * 16235783Skib * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17235783Skib * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18235783Skib * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19235783Skib * ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 20235783Skib * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21235783Skib * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22235783Skib */ 23235783Skib 24235783Skib#include <sys/cdefs.h> 25235783Skib__FBSDID("$FreeBSD$"); 26235783Skib 27235783Skib/** @file drm_sysctl.c 28235783Skib * Implementation of various sysctls for controlling DRM behavior and reporting 29235783Skib * debug information. 30235783Skib */ 31235783Skib 32235783Skib#include <dev/drm2/drmP.h> 33235783Skib#include <dev/drm2/drm.h> 34235783Skib 35235783Skib#include <sys/sysctl.h> 36235783Skib 37235783Skibstatic int drm_name_info DRM_SYSCTL_HANDLER_ARGS; 38235783Skibstatic int drm_vm_info DRM_SYSCTL_HANDLER_ARGS; 39235783Skibstatic int drm_clients_info DRM_SYSCTL_HANDLER_ARGS; 40235783Skibstatic int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS; 41235783Skibstatic int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS; 42235783Skib 43235783Skibstruct drm_sysctl_list { 44235783Skib const char *name; 45235783Skib int (*f) DRM_SYSCTL_HANDLER_ARGS; 46235783Skib} drm_sysctl_list[] = { 47235783Skib {"name", drm_name_info}, 48235783Skib {"vm", drm_vm_info}, 49235783Skib {"clients", drm_clients_info}, 50235783Skib {"bufs", drm_bufs_info}, 51235783Skib {"vblank", drm_vblank_info}, 52235783Skib}; 53235783Skib#define DRM_SYSCTL_ENTRIES (sizeof(drm_sysctl_list)/sizeof(drm_sysctl_list[0])) 54235783Skib 55235783Skibstruct drm_sysctl_info { 56235783Skib struct sysctl_ctx_list ctx; 57235783Skib char name[2]; 58235783Skib}; 59235783Skib 60235783Skibint drm_sysctl_init(struct drm_device *dev) 61235783Skib{ 62235783Skib struct drm_sysctl_info *info; 63235783Skib struct sysctl_oid *oid; 64235783Skib struct sysctl_oid *top, *drioid; 65235783Skib int i; 66235783Skib 67235783Skib info = malloc(sizeof *info, DRM_MEM_DRIVER, M_WAITOK | M_ZERO); 68235783Skib dev->sysctl = info; 69235783Skib 70235783Skib /* Add the sysctl node for DRI if it doesn't already exist */ 71267992Shselasky drioid = SYSCTL_ADD_NODE(&info->ctx, SYSCTL_CHILDREN(&sysctl___hw), OID_AUTO, 72235783Skib "dri", CTLFLAG_RW, NULL, "DRI Graphics"); 73280183Sdumbbell if (!drioid) { 74280183Sdumbbell free(dev->sysctl, DRM_MEM_DRIVER); 75280183Sdumbbell dev->sysctl = NULL; 76280183Sdumbbell return (-ENOMEM); 77280183Sdumbbell } 78235783Skib 79235783Skib /* Find the next free slot under hw.dri */ 80235783Skib i = 0; 81235783Skib SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) { 82235783Skib if (i <= oid->oid_arg2) 83235783Skib i = oid->oid_arg2 + 1; 84235783Skib } 85280183Sdumbbell if (i > 9) { 86280183Sdumbbell drm_sysctl_cleanup(dev); 87280183Sdumbbell return (-ENOSPC); 88280183Sdumbbell } 89280183Sdumbbell 90235783Skib dev->sysctl_node_idx = i; 91235783Skib /* Add the hw.dri.x for our device */ 92235783Skib info->name[0] = '0' + i; 93235783Skib info->name[1] = 0; 94235783Skib top = SYSCTL_ADD_NODE(&info->ctx, SYSCTL_CHILDREN(drioid), 95235783Skib OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL); 96280183Sdumbbell if (!top) { 97280183Sdumbbell drm_sysctl_cleanup(dev); 98280183Sdumbbell return (-ENOMEM); 99280183Sdumbbell } 100280183Sdumbbell 101235783Skib for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) { 102235783Skib oid = SYSCTL_ADD_OID(&info->ctx, 103235783Skib SYSCTL_CHILDREN(top), 104235783Skib OID_AUTO, 105235783Skib drm_sysctl_list[i].name, 106235783Skib CTLTYPE_STRING | CTLFLAG_RD, 107235783Skib dev, 108235783Skib 0, 109235783Skib drm_sysctl_list[i].f, 110235783Skib "A", 111235783Skib NULL); 112280183Sdumbbell if (!oid) { 113280183Sdumbbell drm_sysctl_cleanup(dev); 114280183Sdumbbell return (-ENOMEM); 115280183Sdumbbell } 116235783Skib } 117235783Skib SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "debug", 118280183Sdumbbell CTLFLAG_RW, &drm_debug, sizeof(drm_debug), 119235783Skib "Enable debugging output"); 120235783Skib SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "notyet", 121280183Sdumbbell CTLFLAG_RW, &drm_notyet, sizeof(drm_debug), 122235783Skib "Enable notyet reminders"); 123235783Skib 124235783Skib if (dev->driver->sysctl_init != NULL) 125235783Skib dev->driver->sysctl_init(dev, &info->ctx, top); 126235783Skib 127235783Skib SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, 128235783Skib "vblank_offdelay", CTLFLAG_RW, &drm_vblank_offdelay, 129235783Skib sizeof(drm_vblank_offdelay), 130235783Skib ""); 131235783Skib SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, 132235783Skib "timestamp_precision", CTLFLAG_RW, &drm_timestamp_precision, 133235783Skib sizeof(drm_timestamp_precision), 134235783Skib ""); 135235783Skib 136235783Skib return (0); 137235783Skib} 138235783Skib 139235783Skibint drm_sysctl_cleanup(struct drm_device *dev) 140235783Skib{ 141235783Skib int error; 142235783Skib 143280183Sdumbbell if (dev->sysctl == NULL) 144280183Sdumbbell return (0); 145280183Sdumbbell 146235783Skib error = sysctl_ctx_free(&dev->sysctl->ctx); 147235783Skib free(dev->sysctl, DRM_MEM_DRIVER); 148235783Skib dev->sysctl = NULL; 149235783Skib if (dev->driver->sysctl_cleanup != NULL) 150235783Skib dev->driver->sysctl_cleanup(dev); 151235783Skib 152280183Sdumbbell return (-error); 153235783Skib} 154235783Skib 155235783Skib#define DRM_SYSCTL_PRINT(fmt, arg...) \ 156235783Skibdo { \ 157235783Skib snprintf(buf, sizeof(buf), fmt, ##arg); \ 158235783Skib retcode = SYSCTL_OUT(req, buf, strlen(buf)); \ 159235783Skib if (retcode) \ 160235783Skib goto done; \ 161235783Skib} while (0) 162235783Skib 163235783Skibstatic int drm_name_info DRM_SYSCTL_HANDLER_ARGS 164235783Skib{ 165235783Skib struct drm_device *dev = arg1; 166280183Sdumbbell struct drm_minor *minor; 167280183Sdumbbell struct drm_master *master; 168235783Skib char buf[128]; 169235783Skib int retcode; 170235783Skib int hasunique = 0; 171235783Skib 172280183Sdumbbell /* FIXME: This still uses primary minor. */ 173280183Sdumbbell minor = dev->primary; 174275856Sgleb DRM_SYSCTL_PRINT("%s 0x%jx", dev->driver->name, 175280183Sdumbbell (uintmax_t)dev2udev(minor->device)); 176280183Sdumbbell 177235783Skib DRM_LOCK(dev); 178280183Sdumbbell master = minor->master; 179280183Sdumbbell if (master != NULL && master->unique) { 180280183Sdumbbell snprintf(buf, sizeof(buf), " %s", master->unique); 181235783Skib hasunique = 1; 182235783Skib } 183235783Skib DRM_UNLOCK(dev); 184280183Sdumbbell 185235783Skib if (hasunique) 186235783Skib SYSCTL_OUT(req, buf, strlen(buf)); 187235783Skib 188235783Skib SYSCTL_OUT(req, "", 1); 189235783Skib 190235783Skibdone: 191235783Skib return retcode; 192235783Skib} 193235783Skib 194235783Skibstatic int drm_vm_info DRM_SYSCTL_HANDLER_ARGS 195235783Skib{ 196235783Skib struct drm_device *dev = arg1; 197280183Sdumbbell struct drm_map_list *entry; 198280183Sdumbbell struct drm_local_map *map, *tempmaps; 199255012Sjkim const char *types[] = { 200255012Sjkim [_DRM_FRAME_BUFFER] = "FB", 201255012Sjkim [_DRM_REGISTERS] = "REG", 202255012Sjkim [_DRM_SHM] = "SHM", 203255012Sjkim [_DRM_AGP] = "AGP", 204255012Sjkim [_DRM_SCATTER_GATHER] = "SG", 205255012Sjkim [_DRM_CONSISTENT] = "CONS", 206255012Sjkim [_DRM_GEM] = "GEM" 207255012Sjkim }; 208235783Skib const char *type, *yesno; 209235783Skib int i, mapcount; 210235783Skib char buf[128]; 211235783Skib int retcode; 212235783Skib 213235783Skib /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a 214235783Skib * temporary copy of all the map entries and then SYSCTL_OUT that. 215235783Skib */ 216235783Skib DRM_LOCK(dev); 217235783Skib 218235783Skib mapcount = 0; 219280183Sdumbbell list_for_each_entry(entry, &dev->maplist, head) { 220280183Sdumbbell if (entry->map != NULL) 221280183Sdumbbell mapcount++; 222280183Sdumbbell } 223235783Skib 224280183Sdumbbell tempmaps = malloc(sizeof(*tempmaps) * mapcount, DRM_MEM_DRIVER, 225235783Skib M_NOWAIT); 226235783Skib if (tempmaps == NULL) { 227235783Skib DRM_UNLOCK(dev); 228235783Skib return ENOMEM; 229235783Skib } 230235783Skib 231235783Skib i = 0; 232280183Sdumbbell list_for_each_entry(entry, &dev->maplist, head) { 233280183Sdumbbell if (entry->map != NULL) 234280183Sdumbbell tempmaps[i++] = *entry->map; 235280183Sdumbbell } 236235783Skib 237235783Skib DRM_UNLOCK(dev); 238235783Skib 239235783Skib DRM_SYSCTL_PRINT("\nslot offset size " 240280183Sdumbbell "type flags address mtrr\n"); 241235783Skib 242235783Skib for (i = 0; i < mapcount; i++) { 243235783Skib map = &tempmaps[i]; 244235783Skib 245255012Sjkim switch(map->type) { 246255012Sjkim default: 247235783Skib type = "??"; 248255012Sjkim break; 249255012Sjkim case _DRM_FRAME_BUFFER: 250255012Sjkim case _DRM_REGISTERS: 251255012Sjkim case _DRM_SHM: 252255012Sjkim case _DRM_AGP: 253255012Sjkim case _DRM_SCATTER_GATHER: 254255012Sjkim case _DRM_CONSISTENT: 255255012Sjkim case _DRM_GEM: 256235783Skib type = types[map->type]; 257255012Sjkim break; 258255012Sjkim } 259235783Skib 260280183Sdumbbell if (map->mtrr < 0) 261235783Skib yesno = "no"; 262235783Skib else 263235783Skib yesno = "yes"; 264235783Skib 265235783Skib DRM_SYSCTL_PRINT( 266280183Sdumbbell "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%016lx %s\n", 267280183Sdumbbell i, (unsigned long long)map->offset, map->size, type, 268280183Sdumbbell map->flags, (unsigned long)map->handle, yesno); 269235783Skib } 270235783Skib SYSCTL_OUT(req, "", 1); 271235783Skib 272235783Skibdone: 273235783Skib free(tempmaps, DRM_MEM_DRIVER); 274235783Skib return retcode; 275235783Skib} 276235783Skib 277235783Skibstatic int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS 278235783Skib{ 279235783Skib struct drm_device *dev = arg1; 280280183Sdumbbell struct drm_device_dma *dma = dev->dma; 281280183Sdumbbell struct drm_device_dma tempdma; 282235783Skib int *templists; 283235783Skib int i; 284235783Skib char buf[128]; 285235783Skib int retcode; 286235783Skib 287235783Skib /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary 288235783Skib * copy of the whole structure and the relevant data from buflist. 289235783Skib */ 290235783Skib DRM_LOCK(dev); 291235783Skib if (dma == NULL) { 292235783Skib DRM_UNLOCK(dev); 293235783Skib return 0; 294235783Skib } 295235783Skib DRM_SPINLOCK(&dev->dma_lock); 296235783Skib tempdma = *dma; 297235783Skib templists = malloc(sizeof(int) * dma->buf_count, DRM_MEM_DRIVER, 298235783Skib M_NOWAIT); 299235783Skib for (i = 0; i < dma->buf_count; i++) 300235783Skib templists[i] = dma->buflist[i]->list; 301235783Skib dma = &tempdma; 302235783Skib DRM_SPINUNLOCK(&dev->dma_lock); 303235783Skib DRM_UNLOCK(dev); 304235783Skib 305235783Skib DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n"); 306235783Skib for (i = 0; i <= DRM_MAX_ORDER; i++) { 307235783Skib if (dma->bufs[i].buf_count) 308235783Skib DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n", 309235783Skib i, 310235783Skib dma->bufs[i].buf_size, 311235783Skib dma->bufs[i].buf_count, 312235783Skib atomic_read(&dma->bufs[i] 313235783Skib .freelist.count), 314235783Skib dma->bufs[i].seg_count, 315235783Skib dma->bufs[i].seg_count 316235783Skib *(1 << dma->bufs[i].page_order), 317235783Skib (dma->bufs[i].seg_count 318235783Skib * (1 << dma->bufs[i].page_order)) 319235783Skib * (int)PAGE_SIZE / 1024); 320235783Skib } 321235783Skib DRM_SYSCTL_PRINT("\n"); 322235783Skib for (i = 0; i < dma->buf_count; i++) { 323235783Skib if (i && !(i%32)) DRM_SYSCTL_PRINT("\n"); 324235783Skib DRM_SYSCTL_PRINT(" %d", templists[i]); 325235783Skib } 326235783Skib DRM_SYSCTL_PRINT("\n"); 327235783Skib 328235783Skib SYSCTL_OUT(req, "", 1); 329235783Skibdone: 330235783Skib free(templists, DRM_MEM_DRIVER); 331235783Skib return retcode; 332235783Skib} 333235783Skib 334235783Skibstatic int drm_clients_info DRM_SYSCTL_HANDLER_ARGS 335235783Skib{ 336235783Skib struct drm_device *dev = arg1; 337235783Skib struct drm_file *priv, *tempprivs; 338235783Skib char buf[128]; 339235783Skib int retcode; 340235783Skib int privcount, i; 341235783Skib 342235783Skib DRM_LOCK(dev); 343235783Skib 344235783Skib privcount = 0; 345280183Sdumbbell list_for_each_entry(priv, &dev->filelist, lhead) 346235783Skib privcount++; 347235783Skib 348235783Skib tempprivs = malloc(sizeof(struct drm_file) * privcount, DRM_MEM_DRIVER, 349235783Skib M_NOWAIT); 350235783Skib if (tempprivs == NULL) { 351235783Skib DRM_UNLOCK(dev); 352235783Skib return ENOMEM; 353235783Skib } 354235783Skib i = 0; 355280183Sdumbbell list_for_each_entry(priv, &dev->filelist, lhead) 356235783Skib tempprivs[i++] = *priv; 357235783Skib 358235783Skib DRM_UNLOCK(dev); 359235783Skib 360235783Skib DRM_SYSCTL_PRINT( 361235783Skib "\na dev pid uid magic ioctls\n"); 362235783Skib for (i = 0; i < privcount; i++) { 363235783Skib priv = &tempprivs[i]; 364235783Skib DRM_SYSCTL_PRINT("%c %-12s %5d %5d %10u %10lu\n", 365235783Skib priv->authenticated ? 'y' : 'n', 366280183Sdumbbell devtoname(priv->minor->device), 367235783Skib priv->pid, 368235783Skib priv->uid, 369235783Skib priv->magic, 370235783Skib priv->ioctl_count); 371235783Skib } 372235783Skib 373235783Skib SYSCTL_OUT(req, "", 1); 374235783Skibdone: 375235783Skib free(tempprivs, DRM_MEM_DRIVER); 376235783Skib return retcode; 377235783Skib} 378235783Skib 379235783Skibstatic int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS 380235783Skib{ 381235783Skib struct drm_device *dev = arg1; 382235783Skib char buf[128]; 383235783Skib int retcode; 384235783Skib int i; 385235783Skib 386235783Skib DRM_SYSCTL_PRINT("\ncrtc ref count last enabled inmodeset\n"); 387235783Skib DRM_LOCK(dev); 388235783Skib if (dev->_vblank_count == NULL) 389235783Skib goto done; 390235783Skib for (i = 0 ; i < dev->num_crtcs ; i++) { 391235783Skib DRM_SYSCTL_PRINT(" %02d %02d %08d %08d %02d %02d\n", 392235783Skib i, dev->vblank_refcount[i], 393235783Skib dev->_vblank_count[i], 394235783Skib dev->last_vblank[i], 395235783Skib dev->vblank_enabled[i], 396235783Skib dev->vblank_inmodeset[i]); 397235783Skib } 398235783Skibdone: 399235783Skib DRM_UNLOCK(dev); 400235783Skib 401235783Skib SYSCTL_OUT(req, "", -1); 402235783Skib return retcode; 403235783Skib} 404