drm_sysctl.c revision 267992
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: 11235783Skib * 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. 15235783Skib * 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: head/sys/dev/drm2/drm_sysctl.c 267992 2014-06-28 03:56:17Z hselasky $"); 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"); 73235783Skib if (!drioid) 74235783Skib return 1; 75235783Skib 76235783Skib /* Find the next free slot under hw.dri */ 77235783Skib i = 0; 78235783Skib SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) { 79235783Skib if (i <= oid->oid_arg2) 80235783Skib i = oid->oid_arg2 + 1; 81235783Skib } 82235783Skib if (i > 9) 83235783Skib return (1); 84235783Skib 85235783Skib dev->sysctl_node_idx = i; 86235783Skib /* Add the hw.dri.x for our device */ 87235783Skib info->name[0] = '0' + i; 88235783Skib info->name[1] = 0; 89235783Skib top = SYSCTL_ADD_NODE(&info->ctx, SYSCTL_CHILDREN(drioid), 90235783Skib OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL); 91235783Skib if (!top) 92235783Skib return 1; 93235783Skib 94235783Skib for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) { 95235783Skib oid = SYSCTL_ADD_OID(&info->ctx, 96235783Skib SYSCTL_CHILDREN(top), 97235783Skib OID_AUTO, 98235783Skib drm_sysctl_list[i].name, 99235783Skib CTLTYPE_STRING | CTLFLAG_RD, 100235783Skib dev, 101235783Skib 0, 102235783Skib drm_sysctl_list[i].f, 103235783Skib "A", 104235783Skib NULL); 105235783Skib if (!oid) 106235783Skib return 1; 107235783Skib } 108235783Skib SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "debug", 109235783Skib CTLFLAG_RW, &drm_debug_flag, sizeof(drm_debug_flag), 110235783Skib "Enable debugging output"); 111235783Skib SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "notyet", 112235783Skib CTLFLAG_RW, &drm_notyet_flag, sizeof(drm_debug_flag), 113235783Skib "Enable notyet reminders"); 114235783Skib 115235783Skib if (dev->driver->sysctl_init != NULL) 116235783Skib dev->driver->sysctl_init(dev, &info->ctx, top); 117235783Skib 118235783Skib SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, 119235783Skib "vblank_offdelay", CTLFLAG_RW, &drm_vblank_offdelay, 120235783Skib sizeof(drm_vblank_offdelay), 121235783Skib ""); 122235783Skib SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, 123235783Skib "timestamp_precision", CTLFLAG_RW, &drm_timestamp_precision, 124235783Skib sizeof(drm_timestamp_precision), 125235783Skib ""); 126235783Skib 127235783Skib return (0); 128235783Skib} 129235783Skib 130235783Skibint drm_sysctl_cleanup(struct drm_device *dev) 131235783Skib{ 132235783Skib int error; 133235783Skib 134235783Skib error = sysctl_ctx_free(&dev->sysctl->ctx); 135235783Skib free(dev->sysctl, DRM_MEM_DRIVER); 136235783Skib dev->sysctl = NULL; 137235783Skib if (dev->driver->sysctl_cleanup != NULL) 138235783Skib dev->driver->sysctl_cleanup(dev); 139235783Skib 140235783Skib return (error); 141235783Skib} 142235783Skib 143235783Skib#define DRM_SYSCTL_PRINT(fmt, arg...) \ 144235783Skibdo { \ 145235783Skib snprintf(buf, sizeof(buf), fmt, ##arg); \ 146235783Skib retcode = SYSCTL_OUT(req, buf, strlen(buf)); \ 147235783Skib if (retcode) \ 148235783Skib goto done; \ 149235783Skib} while (0) 150235783Skib 151235783Skibstatic int drm_name_info DRM_SYSCTL_HANDLER_ARGS 152235783Skib{ 153235783Skib struct drm_device *dev = arg1; 154235783Skib char buf[128]; 155235783Skib int retcode; 156235783Skib int hasunique = 0; 157235783Skib 158235783Skib DRM_SYSCTL_PRINT("%s 0x%x", dev->driver->name, dev2udev(dev->devnode)); 159235783Skib 160235783Skib DRM_LOCK(dev); 161235783Skib if (dev->unique) { 162235783Skib snprintf(buf, sizeof(buf), " %s", dev->unique); 163235783Skib hasunique = 1; 164235783Skib } 165235783Skib DRM_UNLOCK(dev); 166235783Skib 167235783Skib if (hasunique) 168235783Skib SYSCTL_OUT(req, buf, strlen(buf)); 169235783Skib 170235783Skib SYSCTL_OUT(req, "", 1); 171235783Skib 172235783Skibdone: 173235783Skib return retcode; 174235783Skib} 175235783Skib 176235783Skibstatic int drm_vm_info DRM_SYSCTL_HANDLER_ARGS 177235783Skib{ 178235783Skib struct drm_device *dev = arg1; 179235783Skib drm_local_map_t *map, *tempmaps; 180255012Sjkim const char *types[] = { 181255012Sjkim [_DRM_FRAME_BUFFER] = "FB", 182255012Sjkim [_DRM_REGISTERS] = "REG", 183255012Sjkim [_DRM_SHM] = "SHM", 184255012Sjkim [_DRM_AGP] = "AGP", 185255012Sjkim [_DRM_SCATTER_GATHER] = "SG", 186255012Sjkim [_DRM_CONSISTENT] = "CONS", 187255012Sjkim [_DRM_GEM] = "GEM" 188255012Sjkim }; 189235783Skib const char *type, *yesno; 190235783Skib int i, mapcount; 191235783Skib char buf[128]; 192235783Skib int retcode; 193235783Skib 194235783Skib /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a 195235783Skib * temporary copy of all the map entries and then SYSCTL_OUT that. 196235783Skib */ 197235783Skib DRM_LOCK(dev); 198235783Skib 199235783Skib mapcount = 0; 200235783Skib TAILQ_FOREACH(map, &dev->maplist, link) 201235783Skib mapcount++; 202235783Skib 203235783Skib tempmaps = malloc(sizeof(drm_local_map_t) * mapcount, DRM_MEM_DRIVER, 204235783Skib M_NOWAIT); 205235783Skib if (tempmaps == NULL) { 206235783Skib DRM_UNLOCK(dev); 207235783Skib return ENOMEM; 208235783Skib } 209235783Skib 210235783Skib i = 0; 211235783Skib TAILQ_FOREACH(map, &dev->maplist, link) 212235783Skib tempmaps[i++] = *map; 213235783Skib 214235783Skib DRM_UNLOCK(dev); 215235783Skib 216235783Skib DRM_SYSCTL_PRINT("\nslot offset size " 217235783Skib "type flags address handle mtrr\n"); 218235783Skib 219235783Skib for (i = 0; i < mapcount; i++) { 220235783Skib map = &tempmaps[i]; 221235783Skib 222255012Sjkim switch(map->type) { 223255012Sjkim default: 224235783Skib type = "??"; 225255012Sjkim break; 226255012Sjkim case _DRM_FRAME_BUFFER: 227255012Sjkim case _DRM_REGISTERS: 228255012Sjkim case _DRM_SHM: 229255012Sjkim case _DRM_AGP: 230255012Sjkim case _DRM_SCATTER_GATHER: 231255012Sjkim case _DRM_CONSISTENT: 232255012Sjkim case _DRM_GEM: 233235783Skib type = types[map->type]; 234255012Sjkim break; 235255012Sjkim } 236235783Skib 237235783Skib if (!map->mtrr) 238235783Skib yesno = "no"; 239235783Skib else 240235783Skib yesno = "yes"; 241235783Skib 242235783Skib DRM_SYSCTL_PRINT( 243235783Skib "%4d 0x%016lx 0x%08lx %4.4s 0x%02x 0x%016lx %6d %s\n", 244235783Skib i, map->offset, map->size, type, map->flags, 245235783Skib (unsigned long)map->virtual, 246235783Skib (unsigned int)((unsigned long)map->handle >> 247235783Skib DRM_MAP_HANDLE_SHIFT), yesno); 248235783Skib } 249235783Skib SYSCTL_OUT(req, "", 1); 250235783Skib 251235783Skibdone: 252235783Skib free(tempmaps, DRM_MEM_DRIVER); 253235783Skib return retcode; 254235783Skib} 255235783Skib 256235783Skibstatic int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS 257235783Skib{ 258235783Skib struct drm_device *dev = arg1; 259235783Skib drm_device_dma_t *dma = dev->dma; 260235783Skib drm_device_dma_t tempdma; 261235783Skib int *templists; 262235783Skib int i; 263235783Skib char buf[128]; 264235783Skib int retcode; 265235783Skib 266235783Skib /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary 267235783Skib * copy of the whole structure and the relevant data from buflist. 268235783Skib */ 269235783Skib DRM_LOCK(dev); 270235783Skib if (dma == NULL) { 271235783Skib DRM_UNLOCK(dev); 272235783Skib return 0; 273235783Skib } 274235783Skib DRM_SPINLOCK(&dev->dma_lock); 275235783Skib tempdma = *dma; 276235783Skib templists = malloc(sizeof(int) * dma->buf_count, DRM_MEM_DRIVER, 277235783Skib M_NOWAIT); 278235783Skib for (i = 0; i < dma->buf_count; i++) 279235783Skib templists[i] = dma->buflist[i]->list; 280235783Skib dma = &tempdma; 281235783Skib DRM_SPINUNLOCK(&dev->dma_lock); 282235783Skib DRM_UNLOCK(dev); 283235783Skib 284235783Skib DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n"); 285235783Skib for (i = 0; i <= DRM_MAX_ORDER; i++) { 286235783Skib if (dma->bufs[i].buf_count) 287235783Skib DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n", 288235783Skib i, 289235783Skib dma->bufs[i].buf_size, 290235783Skib dma->bufs[i].buf_count, 291235783Skib atomic_read(&dma->bufs[i] 292235783Skib .freelist.count), 293235783Skib dma->bufs[i].seg_count, 294235783Skib dma->bufs[i].seg_count 295235783Skib *(1 << dma->bufs[i].page_order), 296235783Skib (dma->bufs[i].seg_count 297235783Skib * (1 << dma->bufs[i].page_order)) 298235783Skib * (int)PAGE_SIZE / 1024); 299235783Skib } 300235783Skib DRM_SYSCTL_PRINT("\n"); 301235783Skib for (i = 0; i < dma->buf_count; i++) { 302235783Skib if (i && !(i%32)) DRM_SYSCTL_PRINT("\n"); 303235783Skib DRM_SYSCTL_PRINT(" %d", templists[i]); 304235783Skib } 305235783Skib DRM_SYSCTL_PRINT("\n"); 306235783Skib 307235783Skib SYSCTL_OUT(req, "", 1); 308235783Skibdone: 309235783Skib free(templists, DRM_MEM_DRIVER); 310235783Skib return retcode; 311235783Skib} 312235783Skib 313235783Skibstatic int drm_clients_info DRM_SYSCTL_HANDLER_ARGS 314235783Skib{ 315235783Skib struct drm_device *dev = arg1; 316235783Skib struct drm_file *priv, *tempprivs; 317235783Skib char buf[128]; 318235783Skib int retcode; 319235783Skib int privcount, i; 320235783Skib 321235783Skib DRM_LOCK(dev); 322235783Skib 323235783Skib privcount = 0; 324235783Skib TAILQ_FOREACH(priv, &dev->files, link) 325235783Skib privcount++; 326235783Skib 327235783Skib tempprivs = malloc(sizeof(struct drm_file) * privcount, DRM_MEM_DRIVER, 328235783Skib M_NOWAIT); 329235783Skib if (tempprivs == NULL) { 330235783Skib DRM_UNLOCK(dev); 331235783Skib return ENOMEM; 332235783Skib } 333235783Skib i = 0; 334235783Skib TAILQ_FOREACH(priv, &dev->files, link) 335235783Skib tempprivs[i++] = *priv; 336235783Skib 337235783Skib DRM_UNLOCK(dev); 338235783Skib 339235783Skib DRM_SYSCTL_PRINT( 340235783Skib "\na dev pid uid magic ioctls\n"); 341235783Skib for (i = 0; i < privcount; i++) { 342235783Skib priv = &tempprivs[i]; 343235783Skib DRM_SYSCTL_PRINT("%c %-12s %5d %5d %10u %10lu\n", 344235783Skib priv->authenticated ? 'y' : 'n', 345235783Skib devtoname(priv->dev->devnode), 346235783Skib priv->pid, 347235783Skib priv->uid, 348235783Skib priv->magic, 349235783Skib priv->ioctl_count); 350235783Skib } 351235783Skib 352235783Skib SYSCTL_OUT(req, "", 1); 353235783Skibdone: 354235783Skib free(tempprivs, DRM_MEM_DRIVER); 355235783Skib return retcode; 356235783Skib} 357235783Skib 358235783Skibstatic int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS 359235783Skib{ 360235783Skib struct drm_device *dev = arg1; 361235783Skib char buf[128]; 362235783Skib int retcode; 363235783Skib int i; 364235783Skib 365235783Skib DRM_SYSCTL_PRINT("\ncrtc ref count last enabled inmodeset\n"); 366235783Skib DRM_LOCK(dev); 367235783Skib if (dev->_vblank_count == NULL) 368235783Skib goto done; 369235783Skib for (i = 0 ; i < dev->num_crtcs ; i++) { 370235783Skib DRM_SYSCTL_PRINT(" %02d %02d %08d %08d %02d %02d\n", 371235783Skib i, dev->vblank_refcount[i], 372235783Skib dev->_vblank_count[i], 373235783Skib dev->last_vblank[i], 374235783Skib dev->vblank_enabled[i], 375235783Skib dev->vblank_inmodeset[i]); 376235783Skib } 377235783Skibdone: 378235783Skib DRM_UNLOCK(dev); 379235783Skib 380235783Skib SYSCTL_OUT(req, "", -1); 381235783Skib return retcode; 382235783Skib} 383