1 /* 2 * drm_ioctl.h -- IOCTL processing for DRM -*- linux-c -*- 3 * Created: Fri Jan 8 09:01:26 1999 by faith@valinux.com 4 */ 5 /* 6 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. 7 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 8 * All Rights Reserved. 9 * 10 * Permission is hereby granted, free of charge, to any person obtaining a 11 * copy of this software and associated documentation files (the "Software"), 12 * to deal in the Software without restriction, including without limitation 13 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 14 * and/or sell copies of the Software, and to permit persons to whom the 15 * Software is furnished to do so, subject to the following conditions: 16 * 17 * The above copyright notice and this permission notice (including the next 18 * paragraph) shall be included in all copies or substantial portions of the 19 * Software. 20 * 21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 22 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 24 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 25 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 26 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 27 * OTHER DEALINGS IN THE SOFTWARE. 28 * 29 * Authors: 30 * Rickard E. (Rik) Faith <faith@valinux.com> 31 * Gareth Hughes <gareth@valinux.com> 32 * 33 */ 34 35 /* 36 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 37 * Use is subject to license terms. 38 */ 39 40 #pragma ident "%Z%%M% %I% %E% SMI" 41 42 #include "drmP.h" 43 #include "drm_io32.h" 44 45 /* 46 * Beginning in revision 1.1 of the DRM interface, getunique will return 47 * a unique in the form pci:oooo:bb:dd.f (o=domain, b=bus, d=device, f=function) 48 * before setunique has been called. The format for the bus-specific part of 49 * the unique is not defined for any other bus. 50 */ 51 /*ARGSUSED*/ 52 int 53 drm_getunique(DRM_IOCTL_ARGS) 54 { 55 DRM_DEVICE; 56 drm_unique_t u1; 57 58 #ifdef _MULTI_DATAMODEL 59 if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { 60 drm_unique_32_t u32; 61 62 DRM_COPYFROM_WITH_RETURN(&u32, (void *)data, sizeof (u32)); 63 u1.unique_len = u32.unique_len; 64 u1.unique = (char __user *)(uintptr_t)u32.unique; 65 } else 66 #endif 67 DRM_COPYFROM_WITH_RETURN(&u1, (void *)data, sizeof (u1)); 68 69 if (u1.unique_len >= dev->unique_len) { 70 if (dev->unique_len == 0) { 71 DRM_ERROR("drm_getunique: dev->unique_len = 0"); 72 return (EFAULT); 73 } 74 if (DRM_COPY_TO_USER(u1.unique, dev->unique, dev->unique_len)) 75 return (EFAULT); 76 } 77 u1.unique_len = dev->unique_len; 78 79 #ifdef _MULTI_DATAMODEL 80 if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { 81 drm_unique_32_t u32; 82 83 u32.unique_len = (uint32_t)u1.unique_len; 84 u32.unique = (caddr32_t)(uintptr_t)u1.unique; 85 DRM_COPYTO_WITH_RETURN((void *)data, &u32, sizeof (u32)); 86 } else 87 #endif 88 DRM_COPYTO_WITH_RETURN((void *)data, &u1, sizeof (u1)); 89 90 return (0); 91 } 92 93 /* 94 * Deprecated in DRM version 1.1, and will return EBUSY when setversion has 95 * requested version 1.1 or greater. 96 */ 97 /*ARGSUSED*/ 98 int 99 drm_setunique(DRM_IOCTL_ARGS) 100 { 101 return (EINVAL); 102 } 103 104 105 static int 106 drm_set_busid(drm_device_t *dev) 107 { 108 DRM_LOCK(); 109 110 if (dev->unique != NULL) { 111 DRM_UNLOCK(); 112 return (EBUSY); 113 } 114 115 dev->unique_len = 20; 116 dev->unique = drm_alloc(dev->unique_len + 1, DRM_MEM_DRIVER); 117 if (dev->unique == NULL) { 118 DRM_UNLOCK(); 119 return (ENOMEM); 120 } 121 122 (void) snprintf(dev->unique, dev->unique_len, "pci:%04x:%02x:%02x.%1x", 123 dev->pci_domain, dev->pci_bus, dev->pci_slot, dev->pci_func); 124 125 DRM_UNLOCK(); 126 127 return (0); 128 } 129 130 /*ARGSUSED*/ 131 int 132 drm_getmap(DRM_IOCTL_ARGS) 133 { 134 DRM_DEVICE; 135 drm_map_t map; 136 drm_local_map_t *mapinlist; 137 int idx; 138 int i = 0; 139 140 #ifdef _MULTI_DATAMODEL 141 if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { 142 drm_map_32_t map32; 143 144 DRM_COPYFROM_WITH_RETURN(&map32, (void *)data, sizeof (map32)); 145 map.offset = map32.offset; 146 map.size = map32.size; 147 map.type = map32.type; 148 map.flags = map32.flags; 149 map.handle = map32.handle; 150 map.mtrr = map32.mtrr; 151 } else 152 #endif 153 DRM_COPYFROM_WITH_RETURN(&map, (void *)data, sizeof (map)); 154 155 idx = (int)map.offset; 156 157 DRM_LOCK(); 158 if (idx < 0) { 159 DRM_UNLOCK(); 160 return (EINVAL); 161 } 162 163 TAILQ_FOREACH(mapinlist, &dev->maplist, link) { 164 if (i == idx) { 165 map.offset = mapinlist->offset; 166 map.size = mapinlist->size; 167 map.type = mapinlist->type; 168 map.flags = mapinlist->flags; 169 map.handle = (unsigned long long)(uintptr_t) 170 mapinlist->handle; 171 map.mtrr = mapinlist->mtrr; 172 break; 173 } 174 i++; 175 } 176 177 DRM_UNLOCK(); 178 179 if (mapinlist == NULL) 180 return (EINVAL); 181 182 #ifdef _MULTI_DATAMODEL 183 if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { 184 drm_map_32_t map32; 185 186 map32.offset = map.offset; 187 map32.size = (uint32_t)map.size; 188 map32.type = map.type; 189 map32.flags = map.flags; 190 map32.handle = (uintptr_t)map.handle; 191 map32.mtrr = map.mtrr; 192 DRM_COPYTO_WITH_RETURN((void *)data, &map32, sizeof (map32)); 193 } else 194 #endif 195 DRM_COPYTO_WITH_RETURN((void *)data, &map, sizeof (map)); 196 197 return (0); 198 } 199 200 /*ARGSUSED*/ 201 int 202 drm_getclient(DRM_IOCTL_ARGS) 203 { 204 DRM_DEVICE; 205 drm_client_t client; 206 drm_file_t *pt; 207 int idx; 208 int i = 0; 209 210 #ifdef _MULTI_DATAMODEL 211 if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { 212 drm_client_32_t client32; 213 214 DRM_COPYFROM_WITH_RETURN(&client32, (void *)data, 215 sizeof (client32)); 216 client.idx = client32.idx; 217 client.auth = client32.auth; 218 client.pid = client32.pid; 219 client.uid = client32.uid; 220 client.magic = client32.magic; 221 client.iocs = client32.iocs; 222 } else 223 #endif 224 DRM_COPYFROM_WITH_RETURN(&client, (void *)data, 225 sizeof (client)); 226 227 idx = client.idx; 228 DRM_LOCK(); 229 TAILQ_FOREACH(pt, &dev->files, link) { 230 if (i == idx) { 231 client.auth = pt->authenticated; 232 client.pid = pt->pid; 233 client.uid = pt->uid; 234 client.magic = pt->magic; 235 client.iocs = pt->ioctl_count; 236 DRM_UNLOCK(); 237 238 #ifdef _MULTI_DATAMODEL 239 if (ddi_model_convert_from(mode & FMODELS) == 240 DDI_MODEL_ILP32) { 241 drm_client_32_t client32; 242 243 client32.idx = client.idx; 244 client32.auth = client.auth; 245 client32.pid = (uint32_t)client.pid; 246 client32.uid = (uint32_t)client.uid; 247 client32.magic = (uint32_t)client.magic; 248 client32.iocs = (uint32_t)client.iocs; 249 250 DRM_COPYTO_WITH_RETURN((void *)data, &client32, 251 sizeof (client32)); 252 } else 253 #endif 254 DRM_COPYTO_WITH_RETURN((void *)data, 255 &client, sizeof (client)); 256 257 return (0); 258 } 259 i++; 260 } 261 DRM_UNLOCK(); 262 return (EINVAL); 263 } 264 265 /*ARGSUSED*/ 266 int 267 drm_getstats(DRM_IOCTL_ARGS) 268 { 269 DRM_DEVICE; 270 drm_stats_t stats; 271 int i; 272 273 bzero(&stats, sizeof (stats)); 274 275 DRM_LOCK(); 276 277 for (i = 0; i < dev->counters; i++) { 278 if (dev->types[i] == _DRM_STAT_LOCK) { 279 stats.data[i].value 280 = (dev->lock.hw_lock 281 ? dev->lock.hw_lock->lock : 0); 282 } else 283 stats.data[i].value = atomic_read(&dev->counts[i]); 284 stats.data[i].type = dev->types[i]; 285 } 286 287 stats.count = dev->counters; 288 289 DRM_UNLOCK(); 290 291 #ifdef _MULTI_DATAMODEL 292 if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { 293 drm_stats_32_t stats32; 294 stats32.count = (uint32_t)stats.count; 295 for (i = 0; i < 15; i++) { 296 stats32.data[i].value = stats.data[i].value; 297 stats32.data[i].type = stats.data[i].type; 298 } 299 DRM_COPYTO_WITH_RETURN((void *)data, &stats32, 300 sizeof (stats32)); 301 } else 302 #endif 303 DRM_COPYTO_WITH_RETURN((void *)data, &stats, sizeof (stats)); 304 305 return (0); 306 } 307 308 #define DRM_IF_MAJOR 1 309 #define DRM_IF_MINOR 2 310 311 /*ARGSUSED*/ 312 int 313 drm_setversion(DRM_IOCTL_ARGS) 314 { 315 DRM_DEVICE; 316 drm_set_version_t sv; 317 drm_set_version_t retv; 318 int if_version; 319 320 DRM_COPYFROM_WITH_RETURN(&sv, (void *)data, sizeof (sv)); 321 322 retv.drm_di_major = DRM_IF_MAJOR; 323 retv.drm_di_minor = DRM_IF_MINOR; 324 retv.drm_dd_major = dev->driver->driver_major; 325 retv.drm_dd_minor = dev->driver->driver_minor; 326 327 DRM_COPYTO_WITH_RETURN((void *)data, &retv, sizeof (sv)); 328 329 if (sv.drm_di_major != -1) { 330 if (sv.drm_di_major != DRM_IF_MAJOR || 331 sv.drm_di_minor < 0 || sv.drm_di_minor > DRM_IF_MINOR) 332 return (EINVAL); 333 if_version = DRM_IF_VERSION(sv.drm_di_major, sv.drm_dd_minor); 334 dev->if_version = DRM_MAX(if_version, dev->if_version); 335 if (sv.drm_di_minor >= 1) { 336 /* 337 * Version 1.1 includes tying of DRM to specific device 338 */ 339 (void) drm_set_busid(dev); 340 } 341 } 342 343 if (sv.drm_dd_major != -1) { 344 if (sv.drm_dd_major != dev->driver->driver_major || 345 sv.drm_dd_minor < 0 || 346 sv.drm_dd_minor > dev->driver->driver_minor) 347 return (EINVAL); 348 } 349 return (0); 350 } 351 352 353 /*ARGSUSED*/ 354 int 355 drm_noop(DRM_IOCTL_ARGS) 356 { 357 DRM_DEBUG("drm_noop\n"); 358 return (0); 359 } 360 361 /*ARGSUSED*/ 362 int 363 drm_version(DRM_IOCTL_ARGS) 364 { 365 DRM_DEVICE; 366 drm_version_t version; 367 size_t len; 368 369 #ifdef _MULTI_DATAMODEL 370 if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { 371 drm_version_32_t version32; 372 373 DRM_COPYFROM_WITH_RETURN(&version32, 374 (void *)data, sizeof (drm_version_32_t)); 375 version.name_len = version32.name_len; 376 version.name = (char *)(uintptr_t)version32.name; 377 version.date_len = version32.date_len; 378 version.date = (char *)(uintptr_t)version32.date; 379 version.desc_len = version32.desc_len; 380 version.desc = (char *)(uintptr_t)version32.desc; 381 } else 382 #endif 383 DRM_COPYFROM_WITH_RETURN(&version, (void *)data, 384 sizeof (version)); 385 386 #define DRM_COPY(name, value) \ 387 len = strlen(value); \ 388 if (len > name##_len) len = name##_len; \ 389 name##_len = strlen(value); \ 390 if (len && name) { \ 391 if (DRM_COPY_TO_USER(name, value, len)) \ 392 return (EFAULT); \ 393 } 394 395 version.version_major = dev->driver->driver_major; 396 version.version_minor = dev->driver->driver_minor; 397 version.version_patchlevel = dev->driver->driver_patchlevel; 398 399 DRM_COPY(version.name, dev->driver->driver_name); 400 DRM_COPY(version.date, dev->driver->driver_date); 401 DRM_COPY(version.desc, dev->driver->driver_desc); 402 403 #ifdef _MULTI_DATAMODEL 404 if (ddi_model_convert_from(mode & FMODELS) == DDI_MODEL_ILP32) { 405 drm_version_32_t version32; 406 407 version32.version_major = version.version_major; 408 version32.version_minor = version.version_minor; 409 version32.version_patchlevel = version.version_patchlevel; 410 version32.name_len = (uint32_t)version.name_len; 411 version32.name = (caddr32_t)(uintptr_t)version.name; 412 version32.date_len = (uint32_t)version.date_len; 413 version32.date = (caddr32_t)(uintptr_t)version.date; 414 version32.desc_len = (uint32_t)version.desc_len; 415 version32.desc = (caddr32_t)(uintptr_t)version.desc; 416 DRM_COPYTO_WITH_RETURN((void *)data, &version32, 417 sizeof (drm_version_32_t)); 418 } else 419 #endif 420 DRM_COPYTO_WITH_RETURN((void *)data, &version, 421 sizeof (version)); 422 423 return (0); 424 } 425