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: 11282199Sdumbbell * 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. 15282199Sdumbbell * 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 */ 71235783Skib drioid = SYSCTL_ADD_NODE(&info->ctx, &sysctl__hw_children, OID_AUTO, 72235783Skib "dri", CTLFLAG_RW, NULL, "DRI Graphics"); 73282199Sdumbbell if (!drioid) { 74282199Sdumbbell free(dev->sysctl, DRM_MEM_DRIVER); 75282199Sdumbbell dev->sysctl = NULL; 76282199Sdumbbell return (-ENOMEM); 77282199Sdumbbell } 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 } 85282199Sdumbbell if (i > 9) { 86282199Sdumbbell drm_sysctl_cleanup(dev); 87282199Sdumbbell return (-ENOSPC); 88282199Sdumbbell } 89282199Sdumbbell 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); 96282199Sdumbbell if (!top) { 97282199Sdumbbell drm_sysctl_cleanup(dev); 98282199Sdumbbell return (-ENOMEM); 99282199Sdumbbell } 100282199Sdumbbell 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); 112282199Sdumbbell if (!oid) { 113282199Sdumbbell drm_sysctl_cleanup(dev); 114282199Sdumbbell return (-ENOMEM); 115282199Sdumbbell } 116235783Skib } 117235783Skib SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "debug", 118282199Sdumbbell CTLFLAG_RW, &drm_debug, sizeof(drm_debug), 119235783Skib "Enable debugging output"); 120235783Skib SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, "notyet", 121282199Sdumbbell 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 143282199Sdumbbell if (dev->sysctl == NULL) 144282199Sdumbbell return (0); 145282199Sdumbbell 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 152282199Sdumbbell 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; 166282199Sdumbbell struct drm_minor *minor; 167282199Sdumbbell struct drm_master *master; 168235783Skib char buf[128]; 169235783Skib int retcode; 170235783Skib int hasunique = 0; 171235783Skib 172282199Sdumbbell /* FIXME: This still uses primary minor. */ 173282199Sdumbbell minor = dev->primary; 174282199Sdumbbell DRM_SYSCTL_PRINT("%s 0x%x", dev->driver->name, dev2udev(minor->device)); 175235783Skib 176235783Skib DRM_LOCK(dev); 177282199Sdumbbell master = minor->master; 178282199Sdumbbell if (master != NULL && master->unique) { 179282199Sdumbbell snprintf(buf, sizeof(buf), " %s", master->unique); 180235783Skib hasunique = 1; 181235783Skib } 182235783Skib DRM_UNLOCK(dev); 183282199Sdumbbell 184235783Skib if (hasunique) 185235783Skib SYSCTL_OUT(req, buf, strlen(buf)); 186235783Skib 187235783Skib SYSCTL_OUT(req, "", 1); 188235783Skib 189235783Skibdone: 190235783Skib return retcode; 191235783Skib} 192235783Skib 193235783Skibstatic int drm_vm_info DRM_SYSCTL_HANDLER_ARGS 194235783Skib{ 195235783Skib struct drm_device *dev = arg1; 196282199Sdumbbell struct drm_map_list *entry; 197282199Sdumbbell struct drm_local_map *map, *tempmaps; 198255012Sjkim const char *types[] = { 199255012Sjkim [_DRM_FRAME_BUFFER] = "FB", 200255012Sjkim [_DRM_REGISTERS] = "REG", 201255012Sjkim [_DRM_SHM] = "SHM", 202255012Sjkim [_DRM_AGP] = "AGP", 203255012Sjkim [_DRM_SCATTER_GATHER] = "SG", 204255012Sjkim [_DRM_CONSISTENT] = "CONS", 205255012Sjkim [_DRM_GEM] = "GEM" 206255012Sjkim }; 207235783Skib const char *type, *yesno; 208235783Skib int i, mapcount; 209235783Skib char buf[128]; 210235783Skib int retcode; 211235783Skib 212235783Skib /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a 213235783Skib * temporary copy of all the map entries and then SYSCTL_OUT that. 214235783Skib */ 215235783Skib DRM_LOCK(dev); 216235783Skib 217235783Skib mapcount = 0; 218282199Sdumbbell list_for_each_entry(entry, &dev->maplist, head) { 219282199Sdumbbell if (entry->map != NULL) 220282199Sdumbbell mapcount++; 221282199Sdumbbell } 222235783Skib 223282199Sdumbbell tempmaps = malloc(sizeof(*tempmaps) * mapcount, DRM_MEM_DRIVER, 224235783Skib M_NOWAIT); 225235783Skib if (tempmaps == NULL) { 226235783Skib DRM_UNLOCK(dev); 227235783Skib return ENOMEM; 228235783Skib } 229235783Skib 230235783Skib i = 0; 231282199Sdumbbell list_for_each_entry(entry, &dev->maplist, head) { 232282199Sdumbbell if (entry->map != NULL) 233282199Sdumbbell tempmaps[i++] = *entry->map; 234282199Sdumbbell } 235235783Skib 236235783Skib DRM_UNLOCK(dev); 237235783Skib 238235783Skib DRM_SYSCTL_PRINT("\nslot offset size " 239282199Sdumbbell "type flags address mtrr\n"); 240235783Skib 241235783Skib for (i = 0; i < mapcount; i++) { 242235783Skib map = &tempmaps[i]; 243235783Skib 244255012Sjkim switch(map->type) { 245255012Sjkim default: 246235783Skib type = "??"; 247255012Sjkim break; 248255012Sjkim case _DRM_FRAME_BUFFER: 249255012Sjkim case _DRM_REGISTERS: 250255012Sjkim case _DRM_SHM: 251255012Sjkim case _DRM_AGP: 252255012Sjkim case _DRM_SCATTER_GATHER: 253255012Sjkim case _DRM_CONSISTENT: 254255012Sjkim case _DRM_GEM: 255235783Skib type = types[map->type]; 256255012Sjkim break; 257255012Sjkim } 258235783Skib 259282199Sdumbbell if (map->mtrr < 0) 260235783Skib yesno = "no"; 261235783Skib else 262235783Skib yesno = "yes"; 263235783Skib 264235783Skib DRM_SYSCTL_PRINT( 265282199Sdumbbell "%4d 0x%016llx 0x%08lx %4.4s 0x%02x 0x%016lx %s\n", 266282199Sdumbbell i, (unsigned long long)map->offset, map->size, type, 267282199Sdumbbell map->flags, (unsigned long)map->handle, yesno); 268235783Skib } 269235783Skib SYSCTL_OUT(req, "", 1); 270235783Skib 271235783Skibdone: 272235783Skib free(tempmaps, DRM_MEM_DRIVER); 273235783Skib return retcode; 274235783Skib} 275235783Skib 276235783Skibstatic int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS 277235783Skib{ 278235783Skib struct drm_device *dev = arg1; 279282199Sdumbbell struct drm_device_dma *dma = dev->dma; 280282199Sdumbbell struct drm_device_dma tempdma; 281235783Skib int *templists; 282235783Skib int i; 283235783Skib char buf[128]; 284235783Skib int retcode; 285235783Skib 286235783Skib /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary 287235783Skib * copy of the whole structure and the relevant data from buflist. 288235783Skib */ 289235783Skib DRM_LOCK(dev); 290235783Skib if (dma == NULL) { 291235783Skib DRM_UNLOCK(dev); 292235783Skib return 0; 293235783Skib } 294235783Skib DRM_SPINLOCK(&dev->dma_lock); 295235783Skib tempdma = *dma; 296235783Skib templists = malloc(sizeof(int) * dma->buf_count, DRM_MEM_DRIVER, 297235783Skib M_NOWAIT); 298235783Skib for (i = 0; i < dma->buf_count; i++) 299235783Skib templists[i] = dma->buflist[i]->list; 300235783Skib dma = &tempdma; 301235783Skib DRM_SPINUNLOCK(&dev->dma_lock); 302235783Skib DRM_UNLOCK(dev); 303235783Skib 304235783Skib DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n"); 305235783Skib for (i = 0; i <= DRM_MAX_ORDER; i++) { 306235783Skib if (dma->bufs[i].buf_count) 307235783Skib DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n", 308235783Skib i, 309235783Skib dma->bufs[i].buf_size, 310235783Skib dma->bufs[i].buf_count, 311235783Skib atomic_read(&dma->bufs[i] 312235783Skib .freelist.count), 313235783Skib dma->bufs[i].seg_count, 314235783Skib dma->bufs[i].seg_count 315235783Skib *(1 << dma->bufs[i].page_order), 316235783Skib (dma->bufs[i].seg_count 317235783Skib * (1 << dma->bufs[i].page_order)) 318235783Skib * (int)PAGE_SIZE / 1024); 319235783Skib } 320235783Skib DRM_SYSCTL_PRINT("\n"); 321235783Skib for (i = 0; i < dma->buf_count; i++) { 322235783Skib if (i && !(i%32)) DRM_SYSCTL_PRINT("\n"); 323235783Skib DRM_SYSCTL_PRINT(" %d", templists[i]); 324235783Skib } 325235783Skib DRM_SYSCTL_PRINT("\n"); 326235783Skib 327235783Skib SYSCTL_OUT(req, "", 1); 328235783Skibdone: 329235783Skib free(templists, DRM_MEM_DRIVER); 330235783Skib return retcode; 331235783Skib} 332235783Skib 333235783Skibstatic int drm_clients_info DRM_SYSCTL_HANDLER_ARGS 334235783Skib{ 335235783Skib struct drm_device *dev = arg1; 336235783Skib struct drm_file *priv, *tempprivs; 337235783Skib char buf[128]; 338235783Skib int retcode; 339235783Skib int privcount, i; 340235783Skib 341235783Skib DRM_LOCK(dev); 342235783Skib 343235783Skib privcount = 0; 344282199Sdumbbell list_for_each_entry(priv, &dev->filelist, lhead) 345235783Skib privcount++; 346235783Skib 347235783Skib tempprivs = malloc(sizeof(struct drm_file) * privcount, DRM_MEM_DRIVER, 348235783Skib M_NOWAIT); 349235783Skib if (tempprivs == NULL) { 350235783Skib DRM_UNLOCK(dev); 351235783Skib return ENOMEM; 352235783Skib } 353235783Skib i = 0; 354282199Sdumbbell list_for_each_entry(priv, &dev->filelist, lhead) 355235783Skib tempprivs[i++] = *priv; 356235783Skib 357235783Skib DRM_UNLOCK(dev); 358235783Skib 359235783Skib DRM_SYSCTL_PRINT( 360235783Skib "\na dev pid uid magic ioctls\n"); 361235783Skib for (i = 0; i < privcount; i++) { 362235783Skib priv = &tempprivs[i]; 363235783Skib DRM_SYSCTL_PRINT("%c %-12s %5d %5d %10u %10lu\n", 364235783Skib priv->authenticated ? 'y' : 'n', 365282199Sdumbbell devtoname(priv->minor->device), 366235783Skib priv->pid, 367235783Skib priv->uid, 368235783Skib priv->magic, 369235783Skib priv->ioctl_count); 370235783Skib } 371235783Skib 372235783Skib SYSCTL_OUT(req, "", 1); 373235783Skibdone: 374235783Skib free(tempprivs, DRM_MEM_DRIVER); 375235783Skib return retcode; 376235783Skib} 377235783Skib 378235783Skibstatic int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS 379235783Skib{ 380235783Skib struct drm_device *dev = arg1; 381235783Skib char buf[128]; 382235783Skib int retcode; 383235783Skib int i; 384235783Skib 385235783Skib DRM_SYSCTL_PRINT("\ncrtc ref count last enabled inmodeset\n"); 386235783Skib DRM_LOCK(dev); 387235783Skib if (dev->_vblank_count == NULL) 388235783Skib goto done; 389235783Skib for (i = 0 ; i < dev->num_crtcs ; i++) { 390235783Skib DRM_SYSCTL_PRINT(" %02d %02d %08d %08d %02d %02d\n", 391235783Skib i, dev->vblank_refcount[i], 392235783Skib dev->_vblank_count[i], 393235783Skib dev->last_vblank[i], 394235783Skib dev->vblank_enabled[i], 395235783Skib dev->vblank_inmodeset[i]); 396235783Skib } 397235783Skibdone: 398235783Skib DRM_UNLOCK(dev); 399235783Skib 400235783Skib SYSCTL_OUT(req, "", -1); 401235783Skib return retcode; 402235783Skib} 403