1/*- 2 * Copyright 2003 Eric Anholt 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 20 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22 */ 23 24#include <sys/cdefs.h> 25__FBSDID("$FreeBSD$"); 26 27/** @file drm_sysctl.c 28 * Implementation of various sysctls for controlling DRM behavior and reporting 29 * debug information. 30 */ 31 32#include "dev/drm/drmP.h" 33#include "dev/drm/drm.h" 34 35#include <sys/sysctl.h> 36 37static int drm_name_info DRM_SYSCTL_HANDLER_ARGS; 38static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS; 39static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS; 40static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS; 41static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS; 42 43struct drm_sysctl_list { 44 const char *name; 45 int (*f) DRM_SYSCTL_HANDLER_ARGS; 46} drm_sysctl_list[] = { 47 {"name", drm_name_info}, 48 {"vm", drm_vm_info}, 49 {"clients", drm_clients_info}, 50 {"bufs", drm_bufs_info}, 51 {"vblank", drm_vblank_info}, 52}; 53#define DRM_SYSCTL_ENTRIES (sizeof(drm_sysctl_list)/sizeof(drm_sysctl_list[0])) 54 55struct drm_sysctl_info { 56 struct sysctl_ctx_list ctx; 57 char name[2]; 58}; 59 60int drm_sysctl_init(struct drm_device *dev) 61{ 62 struct drm_sysctl_info *info; 63 struct sysctl_oid *oid; 64 struct sysctl_oid *top, *drioid; 65 int i; 66 67 info = malloc(sizeof *info, DRM_MEM_DRIVER, M_WAITOK | M_ZERO); 68 if ( !info ) 69 return 1; 70 dev->sysctl = info; 71 72 /* Add the sysctl node for DRI if it doesn't already exist */ 73 drioid = SYSCTL_ADD_NODE(&info->ctx, SYSCTL_CHILDREN(&sysctl___hw), OID_AUTO, "dri", CTLFLAG_RW, NULL, "DRI Graphics"); 74 if (!drioid) 75 return 1; 76 77 /* Find the next free slot under hw.dri */ 78 i = 0; 79 SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) { 80 if (i <= oid->oid_arg2) 81 i = oid->oid_arg2 + 1; 82 } 83 if (i>9) 84 return 1; 85 86 /* Add the hw.dri.x for our device */ 87 info->name[0] = '0' + i; 88 info->name[1] = 0; 89 top = SYSCTL_ADD_NODE( &info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL); 90 if (!top) 91 return 1; 92 93 for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) { 94 oid = SYSCTL_ADD_OID(&info->ctx, 95 SYSCTL_CHILDREN(top), 96 OID_AUTO, 97 drm_sysctl_list[i].name, 98 CTLTYPE_STRING | CTLFLAG_RD, 99 dev, 100 0, 101 drm_sysctl_list[i].f, 102 "A", 103 NULL); 104 if (!oid) 105 return 1; 106 } 107 SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(top), OID_AUTO, "debug", 108 CTLFLAG_RW, &drm_debug_flag, sizeof(drm_debug_flag), 109 "Enable debugging output"); 110 111 return 0; 112} 113 114int drm_sysctl_cleanup(struct drm_device *dev) 115{ 116 int error; 117 error = sysctl_ctx_free( &dev->sysctl->ctx ); 118 119 free(dev->sysctl, DRM_MEM_DRIVER); 120 dev->sysctl = NULL; 121 122 return error; 123} 124 125#define DRM_SYSCTL_PRINT(fmt, arg...) \ 126do { \ 127 snprintf(buf, sizeof(buf), fmt, ##arg); \ 128 retcode = SYSCTL_OUT(req, buf, strlen(buf)); \ 129 if (retcode) \ 130 goto done; \ 131} while (0) 132 133static int drm_name_info DRM_SYSCTL_HANDLER_ARGS 134{ 135 struct drm_device *dev = arg1; 136 char buf[128]; 137 int retcode; 138 int hasunique = 0; 139 140 DRM_SYSCTL_PRINT("%s 0x%jx", dev->driver->name, 141 (uintmax_t)dev2udev(dev->devnode)); 142 143 DRM_LOCK(); 144 if (dev->unique) { 145 snprintf(buf, sizeof(buf), " %s", dev->unique); 146 hasunique = 1; 147 } 148 DRM_UNLOCK(); 149 150 if (hasunique) 151 SYSCTL_OUT(req, buf, strlen(buf)); 152 153 SYSCTL_OUT(req, "", 1); 154 155done: 156 return retcode; 157} 158 159static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS 160{ 161 struct drm_device *dev = arg1; 162 drm_local_map_t *map, *tempmaps; 163 const char *types[] = { "FB", "REG", "SHM", "AGP", "SG" }; 164 const char *type, *yesno; 165 int i, mapcount; 166 char buf[128]; 167 int retcode; 168 169 /* We can't hold the lock while doing SYSCTL_OUTs, so allocate a 170 * temporary copy of all the map entries and then SYSCTL_OUT that. 171 */ 172 DRM_LOCK(); 173 174 mapcount = 0; 175 TAILQ_FOREACH(map, &dev->maplist, link) 176 mapcount++; 177 178 tempmaps = malloc(sizeof(drm_local_map_t) * mapcount, DRM_MEM_DRIVER, 179 M_NOWAIT); 180 if (tempmaps == NULL) { 181 DRM_UNLOCK(); 182 return ENOMEM; 183 } 184 185 i = 0; 186 TAILQ_FOREACH(map, &dev->maplist, link) 187 tempmaps[i++] = *map; 188 189 DRM_UNLOCK(); 190 191 DRM_SYSCTL_PRINT("\nslot offset size " 192 "type flags address handle mtrr\n"); 193 194 for (i = 0; i < mapcount; i++) { 195 map = &tempmaps[i]; 196 197 if (map->type > 4) 198 type = "??"; 199 else 200 type = types[map->type]; 201 202 if (!map->mtrr) 203 yesno = "no"; 204 else 205 yesno = "yes"; 206 207 DRM_SYSCTL_PRINT( 208 "%4d 0x%016lx 0x%08lx %4.4s 0x%02x 0x%016lx %6d %s\n", 209 i, map->offset, map->size, type, map->flags, 210 (unsigned long)map->virtual, 211 (unsigned int)((unsigned long)map->handle >> 212 DRM_MAP_HANDLE_SHIFT), yesno); 213 } 214 SYSCTL_OUT(req, "", 1); 215 216done: 217 free(tempmaps, DRM_MEM_DRIVER); 218 return retcode; 219} 220 221static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS 222{ 223 struct drm_device *dev = arg1; 224 drm_device_dma_t *dma = dev->dma; 225 drm_device_dma_t tempdma; 226 int *templists; 227 int i; 228 char buf[128]; 229 int retcode; 230 231 /* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary 232 * copy of the whole structure and the relevant data from buflist. 233 */ 234 DRM_LOCK(); 235 if (dma == NULL) { 236 DRM_UNLOCK(); 237 return 0; 238 } 239 DRM_SPINLOCK(&dev->dma_lock); 240 tempdma = *dma; 241 templists = malloc(sizeof(int) * dma->buf_count, DRM_MEM_DRIVER, 242 M_NOWAIT); 243 for (i = 0; i < dma->buf_count; i++) 244 templists[i] = dma->buflist[i]->list; 245 dma = &tempdma; 246 DRM_SPINUNLOCK(&dev->dma_lock); 247 DRM_UNLOCK(); 248 249 DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n"); 250 for (i = 0; i <= DRM_MAX_ORDER; i++) { 251 if (dma->bufs[i].buf_count) 252 DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n", 253 i, 254 dma->bufs[i].buf_size, 255 dma->bufs[i].buf_count, 256 atomic_read(&dma->bufs[i] 257 .freelist.count), 258 dma->bufs[i].seg_count, 259 dma->bufs[i].seg_count 260 *(1 << dma->bufs[i].page_order), 261 (dma->bufs[i].seg_count 262 * (1 << dma->bufs[i].page_order)) 263 * (int)PAGE_SIZE / 1024); 264 } 265 DRM_SYSCTL_PRINT("\n"); 266 for (i = 0; i < dma->buf_count; i++) { 267 if (i && !(i%32)) DRM_SYSCTL_PRINT("\n"); 268 DRM_SYSCTL_PRINT(" %d", templists[i]); 269 } 270 DRM_SYSCTL_PRINT("\n"); 271 272 SYSCTL_OUT(req, "", 1); 273done: 274 free(templists, DRM_MEM_DRIVER); 275 return retcode; 276} 277 278static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS 279{ 280 struct drm_device *dev = arg1; 281 struct drm_file *priv, *tempprivs; 282 char buf[128]; 283 int retcode; 284 int privcount, i; 285 286 DRM_LOCK(); 287 288 privcount = 0; 289 TAILQ_FOREACH(priv, &dev->files, link) 290 privcount++; 291 292 tempprivs = malloc(sizeof(struct drm_file) * privcount, DRM_MEM_DRIVER, 293 M_NOWAIT); 294 if (tempprivs == NULL) { 295 DRM_UNLOCK(); 296 return ENOMEM; 297 } 298 i = 0; 299 TAILQ_FOREACH(priv, &dev->files, link) 300 tempprivs[i++] = *priv; 301 302 DRM_UNLOCK(); 303 304 DRM_SYSCTL_PRINT( 305 "\na dev pid uid magic ioctls\n"); 306 for (i = 0; i < privcount; i++) { 307 priv = &tempprivs[i]; 308 DRM_SYSCTL_PRINT("%c %-12s %5d %5d %10u %10lu\n", 309 priv->authenticated ? 'y' : 'n', 310 devtoname(priv->dev->devnode), 311 priv->pid, 312 priv->uid, 313 priv->magic, 314 priv->ioctl_count); 315 } 316 317 SYSCTL_OUT(req, "", 1); 318done: 319 free(tempprivs, DRM_MEM_DRIVER); 320 return retcode; 321} 322 323static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS 324{ 325 struct drm_device *dev = arg1; 326 char buf[128]; 327 int retcode; 328 int i; 329 330 DRM_SYSCTL_PRINT("\ncrtc ref count last enabled inmodeset\n"); 331 for(i = 0 ; i < dev->num_crtcs ; i++) { 332 DRM_SYSCTL_PRINT(" %02d %02d %08d %08d %02d %02d\n", 333 i, atomic_load_acq_32(&dev->vblank[i].refcount), 334 atomic_load_acq_32(&dev->vblank[i].count), 335 atomic_load_acq_32(&dev->vblank[i].last), 336 atomic_load_acq_int(&dev->vblank[i].enabled), 337 atomic_load_acq_int(&dev->vblank[i].inmodeset)); 338 } 339 340 SYSCTL_OUT(req, "", -1); 341done: 342 return retcode; 343} 344