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 */ 73145132Sanholt drioid = SYSCTL_ADD_NODE( &info->ctx, &sysctl__hw_children, 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 140183573Srnoland DRM_SYSCTL_PRINT("%s 0x%x", dev->driver->name, dev2udev(dev->devnode)); 141145132Sanholt 142145132Sanholt DRM_LOCK(); 143145132Sanholt if (dev->unique) { 144145132Sanholt snprintf(buf, sizeof(buf), " %s", dev->unique); 145145132Sanholt hasunique = 1; 146145132Sanholt } 147145132Sanholt DRM_UNLOCK(); 148145132Sanholt 149145132Sanholt if (hasunique) 150145132Sanholt SYSCTL_OUT(req, buf, strlen(buf)); 151145132Sanholt 152145132Sanholt SYSCTL_OUT(req, "", 1); 153145132Sanholt 154145132Sanholtdone: 155145132Sanholt return retcode; 156145132Sanholt} 157145132Sanholt 158145132Sanholtstatic int drm_vm_info DRM_SYSCTL_HANDLER_ARGS 159145132Sanholt{ 160182080Srnoland struct drm_device *dev = arg1; 161145132Sanholt drm_local_map_t *map, *tempmaps; 162145132Sanholt const char *types[] = { "FB", "REG", "SHM", "AGP", "SG" }; 163145132Sanholt const char *type, *yesno; 164145132Sanholt int i, mapcount; 165145132Sanholt char buf[128]; 166145132Sanholt int retcode; 167145132Sanholt 168145132Sanholt /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a 169145132Sanholt * temporary copy of all the map entries and then SYSCTL_OUT that. 170145132Sanholt */ 171145132Sanholt DRM_LOCK(); 172145132Sanholt 173145132Sanholt mapcount = 0; 174145132Sanholt TAILQ_FOREACH(map, &dev->maplist, link) 175145132Sanholt mapcount++; 176145132Sanholt 177183833Srnoland tempmaps = malloc(sizeof(drm_local_map_t) * mapcount, DRM_MEM_DRIVER, 178183833Srnoland M_NOWAIT); 179145132Sanholt if (tempmaps == NULL) { 180145132Sanholt DRM_UNLOCK(); 181145132Sanholt return ENOMEM; 182145132Sanholt } 183145132Sanholt 184145132Sanholt i = 0; 185145132Sanholt TAILQ_FOREACH(map, &dev->maplist, link) 186145132Sanholt tempmaps[i++] = *map; 187145132Sanholt 188145132Sanholt DRM_UNLOCK(); 189145132Sanholt 190189562Srnoland DRM_SYSCTL_PRINT("\nslot offset size " 191207066Srnoland "type flags address handle mtrr\n"); 192145132Sanholt 193145132Sanholt for (i = 0; i < mapcount; i++) { 194145132Sanholt map = &tempmaps[i]; 195145132Sanholt 196145132Sanholt if (map->type < 0 || map->type > 4) 197145132Sanholt type = "??"; 198145132Sanholt else 199145132Sanholt type = types[map->type]; 200145132Sanholt 201145132Sanholt if (!map->mtrr) 202145132Sanholt yesno = "no"; 203145132Sanholt else 204145132Sanholt yesno = "yes"; 205145132Sanholt 206145132Sanholt DRM_SYSCTL_PRINT( 207207066Srnoland "%4d 0x%016lx 0x%08lx %4.4s 0x%02x 0x%016lx %6d %s\n", 208207066Srnoland i, map->offset, map->size, type, map->flags, 209207066Srnoland (unsigned long)map->virtual, 210207066Srnoland (unsigned int)((unsigned long)map->handle >> 211207066Srnoland DRM_MAP_HANDLE_SHIFT), yesno); 212145132Sanholt } 213145132Sanholt SYSCTL_OUT(req, "", 1); 214145132Sanholt 215145132Sanholtdone: 216183833Srnoland free(tempmaps, DRM_MEM_DRIVER); 217145132Sanholt return retcode; 218145132Sanholt} 219145132Sanholt 220145132Sanholtstatic int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS 221145132Sanholt{ 222182080Srnoland struct drm_device *dev = arg1; 223145132Sanholt drm_device_dma_t *dma = dev->dma; 224145132Sanholt drm_device_dma_t tempdma; 225145132Sanholt int *templists; 226145132Sanholt int i; 227145132Sanholt char buf[128]; 228145132Sanholt int retcode; 229145132Sanholt 230145132Sanholt /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary 231145132Sanholt * copy of the whole structure and the relevant data from buflist. 232145132Sanholt */ 233145132Sanholt DRM_LOCK(); 234145132Sanholt if (dma == NULL) { 235145132Sanholt DRM_UNLOCK(); 236145132Sanholt return 0; 237145132Sanholt } 238145132Sanholt DRM_SPINLOCK(&dev->dma_lock); 239145132Sanholt tempdma = *dma; 240183833Srnoland templists = malloc(sizeof(int) * dma->buf_count, DRM_MEM_DRIVER, 241183833Srnoland M_NOWAIT); 242145132Sanholt for (i = 0; i < dma->buf_count; i++) 243145132Sanholt templists[i] = dma->buflist[i]->list; 244145132Sanholt dma = &tempdma; 245145132Sanholt DRM_SPINUNLOCK(&dev->dma_lock); 246145132Sanholt DRM_UNLOCK(); 247145132Sanholt 248145132Sanholt DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n"); 249145132Sanholt for (i = 0; i <= DRM_MAX_ORDER; i++) { 250145132Sanholt if (dma->bufs[i].buf_count) 251145132Sanholt DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n", 252145132Sanholt i, 253145132Sanholt dma->bufs[i].buf_size, 254145132Sanholt dma->bufs[i].buf_count, 255145132Sanholt atomic_read(&dma->bufs[i] 256145132Sanholt .freelist.count), 257145132Sanholt dma->bufs[i].seg_count, 258145132Sanholt dma->bufs[i].seg_count 259145132Sanholt *(1 << dma->bufs[i].page_order), 260145132Sanholt (dma->bufs[i].seg_count 261145132Sanholt * (1 << dma->bufs[i].page_order)) 262215367Snwhitehorn * (int)PAGE_SIZE / 1024); 263145132Sanholt } 264145132Sanholt DRM_SYSCTL_PRINT("\n"); 265145132Sanholt for (i = 0; i < dma->buf_count; i++) { 266145132Sanholt if (i && !(i%32)) DRM_SYSCTL_PRINT("\n"); 267145132Sanholt DRM_SYSCTL_PRINT(" %d", templists[i]); 268145132Sanholt } 269145132Sanholt DRM_SYSCTL_PRINT("\n"); 270145132Sanholt 271145132Sanholt SYSCTL_OUT(req, "", 1); 272145132Sanholtdone: 273183833Srnoland free(templists, DRM_MEM_DRIVER); 274145132Sanholt return retcode; 275145132Sanholt} 276145132Sanholt 277145132Sanholtstatic int drm_clients_info DRM_SYSCTL_HANDLER_ARGS 278145132Sanholt{ 279182080Srnoland struct drm_device *dev = arg1; 280183573Srnoland struct drm_file *priv, *tempprivs; 281145132Sanholt char buf[128]; 282145132Sanholt int retcode; 283145132Sanholt int privcount, i; 284145132Sanholt 285145132Sanholt DRM_LOCK(); 286145132Sanholt 287145132Sanholt privcount = 0; 288145132Sanholt TAILQ_FOREACH(priv, &dev->files, link) 289145132Sanholt privcount++; 290145132Sanholt 291183833Srnoland tempprivs = malloc(sizeof(struct drm_file) * privcount, DRM_MEM_DRIVER, 292183833Srnoland M_NOWAIT); 293145132Sanholt if (tempprivs == NULL) { 294145132Sanholt DRM_UNLOCK(); 295145132Sanholt return ENOMEM; 296145132Sanholt } 297145132Sanholt i = 0; 298145132Sanholt TAILQ_FOREACH(priv, &dev->files, link) 299145132Sanholt tempprivs[i++] = *priv; 300145132Sanholt 301145132Sanholt DRM_UNLOCK(); 302145132Sanholt 303196465Srnoland DRM_SYSCTL_PRINT( 304196465Srnoland "\na dev pid uid magic ioctls\n"); 305145132Sanholt for (i = 0; i < privcount; i++) { 306145132Sanholt priv = &tempprivs[i]; 307196465Srnoland DRM_SYSCTL_PRINT("%c %-12s %5d %5d %10u %10lu\n", 308145132Sanholt priv->authenticated ? 'y' : 'n', 309196465Srnoland devtoname(priv->dev->devnode), 310145132Sanholt priv->pid, 311145132Sanholt priv->uid, 312145132Sanholt priv->magic, 313145132Sanholt priv->ioctl_count); 314145132Sanholt } 315145132Sanholt 316145132Sanholt SYSCTL_OUT(req, "", 1); 317145132Sanholtdone: 318183833Srnoland free(tempprivs, DRM_MEM_DRIVER); 319145132Sanholt return retcode; 320145132Sanholt} 321194759Srnoland 322194759Srnolandstatic int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS 323194759Srnoland{ 324194759Srnoland struct drm_device *dev = arg1; 325194759Srnoland char buf[128]; 326194759Srnoland int retcode; 327194759Srnoland int i; 328194759Srnoland 329194759Srnoland DRM_SYSCTL_PRINT("\ncrtc ref count last enabled inmodeset\n"); 330194759Srnoland for(i = 0 ; i < dev->num_crtcs ; i++) { 331194759Srnoland DRM_SYSCTL_PRINT(" %02d %02d %08d %08d %02d %02d\n", 332194759Srnoland i, atomic_load_acq_32(&dev->vblank[i].refcount), 333194759Srnoland atomic_load_acq_32(&dev->vblank[i].count), 334194759Srnoland atomic_load_acq_32(&dev->vblank[i].last), 335194759Srnoland atomic_load_acq_int(&dev->vblank[i].enabled), 336194759Srnoland atomic_load_acq_int(&dev->vblank[i].inmodeset)); 337194759Srnoland } 338194759Srnoland 339194759Srnoland SYSCTL_OUT(req, "", -1); 340194759Srnolanddone: 341194759Srnoland return retcode; 342194759Srnoland} 343