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 }