1145132Sanholt/*- 2145132Sanholt * Copyright 2003 Eric Anholt 3145132Sanholt * All Rights Reserved. 4145132Sanholt * 5145132Sanholt * Permission is hereby granted, free of charge, to any person obtaining a 6145132Sanholt * copy of this software and associated documentation files (the "Software"), 7145132Sanholt * to deal in the Software without restriction, including without limitation 8145132Sanholt * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9145132Sanholt * and/or sell copies of the Software, and to permit persons to whom the 10145132Sanholt * Software is furnished to do so, subject to the following conditions: 11145132Sanholt * 12145132Sanholt * The above copyright notice and this permission notice (including the next 13145132Sanholt * paragraph) shall be included in all copies or substantial portions of the 14145132Sanholt * Software. 15145132Sanholt * 16145132Sanholt * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17145132Sanholt * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18145132Sanholt * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19145132Sanholt * ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 20145132Sanholt * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21145132Sanholt * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22145132Sanholt */ 23145132Sanholt 24152909Sanholt#include <sys/cdefs.h> 25152909Sanholt__FBSDID("$FreeBSD$"); 26152909Sanholt 27182080Srnoland/** @file drm_sysctl.c 28182080Srnoland * Implementation of various sysctls for controlling DRM behavior and reporting 29182080Srnoland * debug information. 30182080Srnoland */ 31182080Srnoland 32145132Sanholt#include "dev/drm/drmP.h" 33145132Sanholt#include "dev/drm/drm.h" 34145132Sanholt 35145132Sanholt#include <sys/sysctl.h> 36145132Sanholt 37145132Sanholtstatic int drm_name_info DRM_SYSCTL_HANDLER_ARGS; 38145132Sanholtstatic int drm_vm_info DRM_SYSCTL_HANDLER_ARGS; 39145132Sanholtstatic int drm_clients_info DRM_SYSCTL_HANDLER_ARGS; 40145132Sanholtstatic int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS; 41194759Srnolandstatic int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS; 42145132Sanholt 43145132Sanholtstruct drm_sysctl_list { 44145132Sanholt const char *name; 45145132Sanholt int (*f) DRM_SYSCTL_HANDLER_ARGS; 46145132Sanholt} drm_sysctl_list[] = { 47145132Sanholt {"name", drm_name_info}, 48145132Sanholt {"vm", drm_vm_info}, 49145132Sanholt {"clients", drm_clients_info}, 50145132Sanholt {"bufs", drm_bufs_info}, 51194759Srnoland {"vblank", drm_vblank_info}, 52145132Sanholt}; 53145132Sanholt#define DRM_SYSCTL_ENTRIES (sizeof(drm_sysctl_list)/sizeof(drm_sysctl_list[0])) 54145132Sanholt 55145132Sanholtstruct drm_sysctl_info { 56145132Sanholt struct sysctl_ctx_list ctx; 57145132Sanholt char name[2]; 58145132Sanholt}; 59145132Sanholt 60182080Srnolandint drm_sysctl_init(struct drm_device *dev) 61145132Sanholt{ 62145132Sanholt struct drm_sysctl_info *info; 63145132Sanholt struct sysctl_oid *oid; 64145132Sanholt struct sysctl_oid *top, *drioid; 65145132Sanholt int i; 66145132Sanholt 67183833Srnoland info = malloc(sizeof *info, DRM_MEM_DRIVER, M_WAITOK | M_ZERO); 68145132Sanholt if ( !info ) 69145132Sanholt return 1; 70145132Sanholt dev->sysctl = info; 71145132Sanholt 72145132Sanholt /* Add the sysctl node for DRI if it doesn't already exist */ 73267992Shselasky drioid = SYSCTL_ADD_NODE(&info->ctx, SYSCTL_CHILDREN(&sysctl___hw), OID_AUTO, "dri", CTLFLAG_RW, NULL, "DRI Graphics"); 74145132Sanholt if (!drioid) 75145132Sanholt return 1; 76145132Sanholt 77145132Sanholt /* Find the next free slot under hw.dri */ 78145132Sanholt i = 0; 79145132Sanholt SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) { 80145132Sanholt if (i <= oid->oid_arg2) 81145132Sanholt i = oid->oid_arg2 + 1; 82145132Sanholt } 83145132Sanholt if (i>9) 84145132Sanholt return 1; 85145132Sanholt 86145132Sanholt /* Add the hw.dri.x for our device */ 87145132Sanholt info->name[0] = '0' + i; 88145132Sanholt info->name[1] = 0; 89145132Sanholt top = SYSCTL_ADD_NODE( &info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL); 90145132Sanholt if (!top) 91145132Sanholt return 1; 92145132Sanholt 93145132Sanholt for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) { 94145132Sanholt oid = SYSCTL_ADD_OID(&info->ctx, 95145132Sanholt SYSCTL_CHILDREN(top), 96145132Sanholt OID_AUTO, 97145132Sanholt drm_sysctl_list[i].name, 98220979Skib CTLTYPE_STRING | CTLFLAG_RD, 99145132Sanholt dev, 100145132Sanholt 0, 101145132Sanholt drm_sysctl_list[i].f, 102145132Sanholt "A", 103145132Sanholt NULL); 104145132Sanholt if (!oid) 105145132Sanholt return 1; 106145132Sanholt } 107145132Sanholt SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(top), OID_AUTO, "debug", 108145132Sanholt CTLFLAG_RW, &drm_debug_flag, sizeof(drm_debug_flag), 109145132Sanholt "Enable debugging output"); 110145132Sanholt 111145132Sanholt return 0; 112145132Sanholt} 113145132Sanholt 114182080Srnolandint drm_sysctl_cleanup(struct drm_device *dev) 115145132Sanholt{ 116145132Sanholt int error; 117145132Sanholt error = sysctl_ctx_free( &dev->sysctl->ctx ); 118145132Sanholt 119183833Srnoland free(dev->sysctl, DRM_MEM_DRIVER); 120145132Sanholt dev->sysctl = NULL; 121145132Sanholt 122145132Sanholt return error; 123145132Sanholt} 124145132Sanholt 125145132Sanholt#define DRM_SYSCTL_PRINT(fmt, arg...) \ 126145132Sanholtdo { \ 127145132Sanholt snprintf(buf, sizeof(buf), fmt, ##arg); \ 128145132Sanholt retcode = SYSCTL_OUT(req, buf, strlen(buf)); \ 129145132Sanholt if (retcode) \ 130145132Sanholt goto done; \ 131145132Sanholt} while (0) 132145132Sanholt 133145132Sanholtstatic int drm_name_info DRM_SYSCTL_HANDLER_ARGS 134145132Sanholt{ 135182080Srnoland struct drm_device *dev = arg1; 136145132Sanholt char buf[128]; 137145132Sanholt int retcode; 138145132Sanholt int hasunique = 0; 139145132Sanholt 140275856Sgleb DRM_SYSCTL_PRINT("%s 0x%jx", dev->driver->name, 141275856Sgleb (uintmax_t)dev2udev(dev->devnode)); 142275856Sgleb 143145132Sanholt DRM_LOCK(); 144145132Sanholt if (dev->unique) { 145145132Sanholt snprintf(buf, sizeof(buf), " %s", dev->unique); 146145132Sanholt hasunique = 1; 147145132Sanholt } 148145132Sanholt DRM_UNLOCK(); 149145132Sanholt 150145132Sanholt if (hasunique) 151145132Sanholt SYSCTL_OUT(req, buf, strlen(buf)); 152145132Sanholt 153145132Sanholt SYSCTL_OUT(req, "", 1); 154145132Sanholt 155145132Sanholtdone: 156145132Sanholt return retcode; 157145132Sanholt} 158145132Sanholt 159145132Sanholtstatic int drm_vm_info DRM_SYSCTL_HANDLER_ARGS 160145132Sanholt{ 161182080Srnoland struct drm_device *dev = arg1; 162145132Sanholt drm_local_map_t *map, *tempmaps; 163145132Sanholt const char *types[] = { "FB", "REG", "SHM", "AGP", "SG" }; 164145132Sanholt const char *type, *yesno; 165145132Sanholt int i, mapcount; 166145132Sanholt char buf[128]; 167145132Sanholt int retcode; 168145132Sanholt 169145132Sanholt /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a 170145132Sanholt * temporary copy of all the map entries and then SYSCTL_OUT that. 171145132Sanholt */ 172145132Sanholt DRM_LOCK(); 173145132Sanholt 174145132Sanholt mapcount = 0; 175145132Sanholt TAILQ_FOREACH(map, &dev->maplist, link) 176145132Sanholt mapcount++; 177145132Sanholt 178183833Srnoland tempmaps = malloc(sizeof(drm_local_map_t) * mapcount, DRM_MEM_DRIVER, 179183833Srnoland M_NOWAIT); 180145132Sanholt if (tempmaps == NULL) { 181145132Sanholt DRM_UNLOCK(); 182145132Sanholt return ENOMEM; 183145132Sanholt } 184145132Sanholt 185145132Sanholt i = 0; 186145132Sanholt TAILQ_FOREACH(map, &dev->maplist, link) 187145132Sanholt tempmaps[i++] = *map; 188145132Sanholt 189145132Sanholt DRM_UNLOCK(); 190145132Sanholt 191189562Srnoland DRM_SYSCTL_PRINT("\nslot offset size " 192207066Srnoland "type flags address handle mtrr\n"); 193145132Sanholt 194145132Sanholt for (i = 0; i < mapcount; i++) { 195145132Sanholt map = &tempmaps[i]; 196145132Sanholt 197271013Sglebius if (map->type > 4) 198145132Sanholt type = "??"; 199145132Sanholt else 200145132Sanholt type = types[map->type]; 201145132Sanholt 202145132Sanholt if (!map->mtrr) 203145132Sanholt yesno = "no"; 204145132Sanholt else 205145132Sanholt yesno = "yes"; 206145132Sanholt 207145132Sanholt DRM_SYSCTL_PRINT( 208207066Srnoland "%4d 0x%016lx 0x%08lx %4.4s 0x%02x 0x%016lx %6d %s\n", 209207066Srnoland i, map->offset, map->size, type, map->flags, 210207066Srnoland (unsigned long)map->virtual, 211207066Srnoland (unsigned int)((unsigned long)map->handle >> 212207066Srnoland DRM_MAP_HANDLE_SHIFT), yesno); 213145132Sanholt } 214145132Sanholt SYSCTL_OUT(req, "", 1); 215145132Sanholt 216145132Sanholtdone: 217183833Srnoland free(tempmaps, DRM_MEM_DRIVER); 218145132Sanholt return retcode; 219145132Sanholt} 220145132Sanholt 221145132Sanholtstatic int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS 222145132Sanholt{ 223182080Srnoland struct drm_device *dev = arg1; 224145132Sanholt drm_device_dma_t *dma = dev->dma; 225145132Sanholt drm_device_dma_t tempdma; 226145132Sanholt int *templists; 227145132Sanholt int i; 228145132Sanholt char buf[128]; 229145132Sanholt int retcode; 230145132Sanholt 231145132Sanholt /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary 232145132Sanholt * copy of the whole structure and the relevant data from buflist. 233145132Sanholt */ 234145132Sanholt DRM_LOCK(); 235145132Sanholt if (dma == NULL) { 236145132Sanholt DRM_UNLOCK(); 237145132Sanholt return 0; 238145132Sanholt } 239145132Sanholt DRM_SPINLOCK(&dev->dma_lock); 240145132Sanholt tempdma = *dma; 241183833Srnoland templists = malloc(sizeof(int) * dma->buf_count, DRM_MEM_DRIVER, 242183833Srnoland M_NOWAIT); 243145132Sanholt for (i = 0; i < dma->buf_count; i++) 244145132Sanholt templists[i] = dma->buflist[i]->list; 245145132Sanholt dma = &tempdma; 246145132Sanholt DRM_SPINUNLOCK(&dev->dma_lock); 247145132Sanholt DRM_UNLOCK(); 248145132Sanholt 249145132Sanholt DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n"); 250145132Sanholt for (i = 0; i <= DRM_MAX_ORDER; i++) { 251145132Sanholt if (dma->bufs[i].buf_count) 252145132Sanholt DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n", 253145132Sanholt i, 254145132Sanholt dma->bufs[i].buf_size, 255145132Sanholt dma->bufs[i].buf_count, 256145132Sanholt atomic_read(&dma->bufs[i] 257145132Sanholt .freelist.count), 258145132Sanholt dma->bufs[i].seg_count, 259145132Sanholt dma->bufs[i].seg_count 260145132Sanholt *(1 << dma->bufs[i].page_order), 261145132Sanholt (dma->bufs[i].seg_count 262145132Sanholt * (1 << dma->bufs[i].page_order)) 263215367Snwhitehorn * (int)PAGE_SIZE / 1024); 264145132Sanholt } 265145132Sanholt DRM_SYSCTL_PRINT("\n"); 266145132Sanholt for (i = 0; i < dma->buf_count; i++) { 267145132Sanholt if (i && !(i%32)) DRM_SYSCTL_PRINT("\n"); 268145132Sanholt DRM_SYSCTL_PRINT(" %d", templists[i]); 269145132Sanholt } 270145132Sanholt DRM_SYSCTL_PRINT("\n"); 271145132Sanholt 272145132Sanholt SYSCTL_OUT(req, "", 1); 273145132Sanholtdone: 274183833Srnoland free(templists, DRM_MEM_DRIVER); 275145132Sanholt return retcode; 276145132Sanholt} 277145132Sanholt 278145132Sanholtstatic int drm_clients_info DRM_SYSCTL_HANDLER_ARGS 279145132Sanholt{ 280182080Srnoland struct drm_device *dev = arg1; 281183573Srnoland struct drm_file *priv, *tempprivs; 282145132Sanholt char buf[128]; 283145132Sanholt int retcode; 284145132Sanholt int privcount, i; 285145132Sanholt 286145132Sanholt DRM_LOCK(); 287145132Sanholt 288145132Sanholt privcount = 0; 289145132Sanholt TAILQ_FOREACH(priv, &dev->files, link) 290145132Sanholt privcount++; 291145132Sanholt 292183833Srnoland tempprivs = malloc(sizeof(struct drm_file) * privcount, DRM_MEM_DRIVER, 293183833Srnoland M_NOWAIT); 294145132Sanholt if (tempprivs == NULL) { 295145132Sanholt DRM_UNLOCK(); 296145132Sanholt return ENOMEM; 297145132Sanholt } 298145132Sanholt i = 0; 299145132Sanholt TAILQ_FOREACH(priv, &dev->files, link) 300145132Sanholt tempprivs[i++] = *priv; 301145132Sanholt 302145132Sanholt DRM_UNLOCK(); 303145132Sanholt 304196465Srnoland DRM_SYSCTL_PRINT( 305196465Srnoland "\na dev pid uid magic ioctls\n"); 306145132Sanholt for (i = 0; i < privcount; i++) { 307145132Sanholt priv = &tempprivs[i]; 308196465Srnoland DRM_SYSCTL_PRINT("%c %-12s %5d %5d %10u %10lu\n", 309145132Sanholt priv->authenticated ? 'y' : 'n', 310196465Srnoland devtoname(priv->dev->devnode), 311145132Sanholt priv->pid, 312145132Sanholt priv->uid, 313145132Sanholt priv->magic, 314145132Sanholt priv->ioctl_count); 315145132Sanholt } 316145132Sanholt 317145132Sanholt SYSCTL_OUT(req, "", 1); 318145132Sanholtdone: 319183833Srnoland free(tempprivs, DRM_MEM_DRIVER); 320145132Sanholt return retcode; 321145132Sanholt} 322194759Srnoland 323194759Srnolandstatic int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS 324194759Srnoland{ 325194759Srnoland struct drm_device *dev = arg1; 326194759Srnoland char buf[128]; 327194759Srnoland int retcode; 328194759Srnoland int i; 329194759Srnoland 330194759Srnoland DRM_SYSCTL_PRINT("\ncrtc ref count last enabled inmodeset\n"); 331194759Srnoland for(i = 0 ; i < dev->num_crtcs ; i++) { 332194759Srnoland DRM_SYSCTL_PRINT(" %02d %02d %08d %08d %02d %02d\n", 333194759Srnoland i, atomic_load_acq_32(&dev->vblank[i].refcount), 334194759Srnoland atomic_load_acq_32(&dev->vblank[i].count), 335194759Srnoland atomic_load_acq_32(&dev->vblank[i].last), 336194759Srnoland atomic_load_acq_int(&dev->vblank[i].enabled), 337194759Srnoland atomic_load_acq_int(&dev->vblank[i].inmodeset)); 338194759Srnoland } 339194759Srnoland 340194759Srnoland SYSCTL_OUT(req, "", -1); 341194759Srnolanddone: 342194759Srnoland return retcode; 343194759Srnoland} 344