]> git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blame - drivers/gpu/drm/drm_ioc32.c
projects / mirror_ubuntu-zesty-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
[mirror_ubuntu-zesty-kernel.git] / drivers / gpu / drm / drm_ioc32.c
CommitLineData
9a186645
DA		 1/**
2 * \file drm_ioc32.c
3 *
4 * 32-bit ioctl compatibility routines for the DRM.
5 *
6 * \author Paul Mackerras <paulus@samba.org>
7 *
8 * Copyright (C) Paul Mackerras 2005.
9 * All Rights Reserved.
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the "Software"),
13 * to deal in the Software without restriction, including without limitation
14 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 * and/or sell copies of the Software, and to permit persons to whom the
16 * Software is furnished to do so, subject to the following conditions:
17 *
18 * The above copyright notice and this permission notice (including the next
19 * paragraph) shall be included in all copies or substantial portions of the
20 * Software.
21 *
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
23 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
25 * THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
26 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
27 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
28 * IN THE SOFTWARE.
29 */
30#include <linux/compat.h>
cafe8d84 31#include <linux/ratelimit.h>
2d1a8a48 32#include <linux/export.h>
9a186645
DA		 33
34#include "drmP.h"
35#include "drm_core.h"
36
37#define DRM_IOCTL_VERSION32 DRM_IOWR(0x00, drm_version32_t)
38#define DRM_IOCTL_GET_UNIQUE32 DRM_IOWR(0x01, drm_unique32_t)
39#define DRM_IOCTL_GET_MAP32 DRM_IOWR(0x04, drm_map32_t)
40#define DRM_IOCTL_GET_CLIENT32 DRM_IOWR(0x05, drm_client32_t)
41#define DRM_IOCTL_GET_STATS32 DRM_IOR( 0x06, drm_stats32_t)
42
43#define DRM_IOCTL_SET_UNIQUE32 DRM_IOW( 0x10, drm_unique32_t)
44#define DRM_IOCTL_ADD_MAP32 DRM_IOWR(0x15, drm_map32_t)
45#define DRM_IOCTL_ADD_BUFS32 DRM_IOWR(0x16, drm_buf_desc32_t)
46#define DRM_IOCTL_MARK_BUFS32 DRM_IOW( 0x17, drm_buf_desc32_t)
47#define DRM_IOCTL_INFO_BUFS32 DRM_IOWR(0x18, drm_buf_info32_t)
48#define DRM_IOCTL_MAP_BUFS32 DRM_IOWR(0x19, drm_buf_map32_t)
49#define DRM_IOCTL_FREE_BUFS32 DRM_IOW( 0x1a, drm_buf_free32_t)
50
51#define DRM_IOCTL_RM_MAP32 DRM_IOW( 0x1b, drm_map32_t)
52
53#define DRM_IOCTL_SET_SAREA_CTX32 DRM_IOW( 0x1c, drm_ctx_priv_map32_t)
54#define DRM_IOCTL_GET_SAREA_CTX32 DRM_IOWR(0x1d, drm_ctx_priv_map32_t)
55
56#define DRM_IOCTL_RES_CTX32 DRM_IOWR(0x26, drm_ctx_res32_t)
57#define DRM_IOCTL_DMA32 DRM_IOWR(0x29, drm_dma32_t)
58
59#define DRM_IOCTL_AGP_ENABLE32 DRM_IOW( 0x32, drm_agp_mode32_t)
60#define DRM_IOCTL_AGP_INFO32 DRM_IOR( 0x33, drm_agp_info32_t)
61#define DRM_IOCTL_AGP_ALLOC32 DRM_IOWR(0x34, drm_agp_buffer32_t)
62#define DRM_IOCTL_AGP_FREE32 DRM_IOW( 0x35, drm_agp_buffer32_t)
63#define DRM_IOCTL_AGP_BIND32 DRM_IOW( 0x36, drm_agp_binding32_t)
64#define DRM_IOCTL_AGP_UNBIND32 DRM_IOW( 0x37, drm_agp_binding32_t)
65
66#define DRM_IOCTL_SG_ALLOC32 DRM_IOW( 0x38, drm_scatter_gather32_t)
67#define DRM_IOCTL_SG_FREE32 DRM_IOW( 0x39, drm_scatter_gather32_t)
68
49568873
EA		 69#define DRM_IOCTL_UPDATE_DRAW32 DRM_IOW( 0x3f, drm_update_draw32_t)
70
9a186645
DA		 71#define DRM_IOCTL_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_t)
72
73typedef struct drm_version_32 {
b5e89ed5
DA		 74 int version_major; /**< Major version */
75 int version_minor; /**< Minor version */
76 int version_patchlevel; /**< Patch level */
77 u32 name_len; /**< Length of name buffer */
78 u32 name; /**< Name of driver */
79 u32 date_len; /**< Length of date buffer */
80 u32 date; /**< User-space buffer to hold date */
81 u32 desc_len; /**< Length of desc buffer */
82 u32 desc; /**< User-space buffer to hold desc */
9a186645
DA		 83} drm_version32_t;
84
85static int compat_drm_version(struct file *file, unsigned int cmd,
86 unsigned long arg)
87{
88 drm_version32_t v32;
ff4135ae 89 struct drm_version __user *version;
9a186645
DA		 90 int err;
91
b5e89ed5 92 if (copy_from_user(&v32, (void __user *)arg, sizeof(v32)))
9a186645
DA		 93 return -EFAULT;
94
95 version = compat_alloc_user_space(sizeof(*version));
96 if (!access_ok(VERIFY_WRITE, version, sizeof(*version)))
97 return -EFAULT;
98 if (__put_user(v32.name_len, &version->name_len)
99 || __put_user((void __user *)(unsigned long)v32.name,
100 &version->name)
101 || __put_user(v32.date_len, &version->date_len)
102 || __put_user((void __user *)(unsigned long)v32.date,
103 &version->date)
104 || __put_user(v32.desc_len, &version->desc_len)
105 || __put_user((void __user *)(unsigned long)v32.desc,
106 &version->desc))
107 return -EFAULT;
108
ed8b6704 109 err = drm_ioctl(file,
b5e89ed5 110 DRM_IOCTL_VERSION, (unsigned long)version);
9a186645
DA		 111 if (err)
112 return err;
113
114 if (__get_user(v32.version_major, &version->version_major)
115 || __get_user(v32.version_minor, &version->version_minor)
116 || __get_user(v32.version_patchlevel, &version->version_patchlevel)
117 || __get_user(v32.name_len, &version->name_len)
118 || __get_user(v32.date_len, &version->date_len)
119 || __get_user(v32.desc_len, &version->desc_len))
120 return -EFAULT;
121
b5e89ed5 122 if (copy_to_user((void __user *)arg, &v32, sizeof(v32)))
9a186645
DA		 123 return -EFAULT;
124 return 0;
125}
126
127typedef struct drm_unique32 {
128 u32 unique_len; /**< Length of unique */
129 u32 unique; /**< Unique name for driver instantiation */
130} drm_unique32_t;
131
132static int compat_drm_getunique(struct file *file, unsigned int cmd,
133 unsigned long arg)
134{
135 drm_unique32_t uq32;
ff4135ae 136 struct drm_unique __user *u;
9a186645
DA		 137 int err;
138
b5e89ed5 139 if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
9a186645
DA		 140 return -EFAULT;
141
142 u = compat_alloc_user_space(sizeof(*u));
143 if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
144 return -EFAULT;
145 if (__put_user(uq32.unique_len, &u->unique_len)
b5e89ed5 146 || __put_user((void __user *)(unsigned long)uq32.unique,
9a186645
DA		 147 &u->unique))
148 return -EFAULT;
149
ed8b6704 150 err = drm_ioctl(file, DRM_IOCTL_GET_UNIQUE, (unsigned long)u);
9a186645
DA		 151 if (err)
152 return err;
153
154 if (__get_user(uq32.unique_len, &u->unique_len))
155 return -EFAULT;
b5e89ed5 156 if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32)))
9a186645
DA		 157 return -EFAULT;
158 return 0;
159}
160
161static int compat_drm_setunique(struct file *file, unsigned int cmd,
162 unsigned long arg)
163{
164 drm_unique32_t uq32;
ff4135ae 165 struct drm_unique __user *u;
9a186645 166
b5e89ed5 167 if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
9a186645
DA		 168 return -EFAULT;
169
170 u = compat_alloc_user_space(sizeof(*u));
171 if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
172 return -EFAULT;
173 if (__put_user(uq32.unique_len, &u->unique_len)
b5e89ed5 174 || __put_user((void __user *)(unsigned long)uq32.unique,
9a186645
DA		 175 &u->unique))
176 return -EFAULT;
177
ed8b6704 178 return drm_ioctl(file, DRM_IOCTL_SET_UNIQUE, (unsigned long)u);
9a186645
DA		 179}
180
181typedef struct drm_map32 {
b5e89ed5
DA		 182 u32 offset; /**< Requested physical address (0 for SAREA)*/
183 u32 size; /**< Requested physical size (bytes) */
ff4135ae
DA		 184 enum drm_map_type type; /**< Type of memory to map */
185 enum drm_map_flags flags; /**< Flags */
b5e89ed5
DA		 186 u32 handle; /**< User-space: "Handle" to pass to mmap() */
187 int mtrr; /**< MTRR slot used */
9a186645
DA		 188} drm_map32_t;
189
190static int compat_drm_getmap(struct file *file, unsigned int cmd,
191 unsigned long arg)
192{
193 drm_map32_t __user *argp = (void __user *)arg;
194 drm_map32_t m32;
ff4135ae 195 struct drm_map __user *map;
9a186645
DA		 196 int idx, err;
197 void *handle;
198
199 if (get_user(idx, &argp->offset))
200 return -EFAULT;
201
202 map = compat_alloc_user_space(sizeof(*map));
203 if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
204 return -EFAULT;
205 if (__put_user(idx, &map->offset))
206 return -EFAULT;
207
ed8b6704 208 err = drm_ioctl(file, DRM_IOCTL_GET_MAP, (unsigned long)map);
9a186645
DA		 209 if (err)
210 return err;
211
212 if (__get_user(m32.offset, &map->offset)
213 || __get_user(m32.size, &map->size)
214 || __get_user(m32.type, &map->type)
215 || __get_user(m32.flags, &map->flags)
216 || __get_user(handle, &map->handle)
217 || __get_user(m32.mtrr, &map->mtrr))
218 return -EFAULT;
219
b5e89ed5 220 m32.handle = (unsigned long)handle;
9a186645
DA		 221 if (copy_to_user(argp, &m32, sizeof(m32)))
222 return -EFAULT;
223 return 0;
224
225}
226
227static int compat_drm_addmap(struct file *file, unsigned int cmd,
228 unsigned long arg)
229{
230 drm_map32_t __user *argp = (void __user *)arg;
231 drm_map32_t m32;
ff4135ae 232 struct drm_map __user *map;
9a186645
DA		 233 int err;
234 void *handle;
235
236 if (copy_from_user(&m32, argp, sizeof(m32)))
237 return -EFAULT;
238
239 map = compat_alloc_user_space(sizeof(*map));
240 if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
241 return -EFAULT;
242 if (__put_user(m32.offset, &map->offset)
243 || __put_user(m32.size, &map->size)
244 || __put_user(m32.type, &map->type)
245 || __put_user(m32.flags, &map->flags))
246 return -EFAULT;
247
ed8b6704 248 err = drm_ioctl(file, DRM_IOCTL_ADD_MAP, (unsigned long)map);
9a186645
DA		 249 if (err)
250 return err;
251
252 if (__get_user(m32.offset, &map->offset)
253 || __get_user(m32.mtrr, &map->mtrr)
254 || __get_user(handle, &map->handle))
255 return -EFAULT;
256
b5e89ed5 257 m32.handle = (unsigned long)handle;
cafe8d84
CD		 258 if (m32.handle != (unsigned long)handle)
259 printk_ratelimited(KERN_ERR "compat_drm_addmap truncated handle"
260 " %p for type %d offset %x\n",
261 handle, m32.type, m32.offset);
9a186645
DA		 262
263 if (copy_to_user(argp, &m32, sizeof(m32)))
264 return -EFAULT;
265
266 return 0;
267}
268
269static int compat_drm_rmmap(struct file *file, unsigned int cmd,
270 unsigned long arg)
271{
272 drm_map32_t __user *argp = (void __user *)arg;
ff4135ae 273 struct drm_map __user *map;
9a186645
DA		 274 u32 handle;
275
276 if (get_user(handle, &argp->handle))
277 return -EFAULT;
278
279 map = compat_alloc_user_space(sizeof(*map));
280 if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
281 return -EFAULT;
b5e89ed5 282 if (__put_user((void *)(unsigned long)handle, &map->handle))
9a186645
DA		 283 return -EFAULT;
284
ed8b6704 285 return drm_ioctl(file, DRM_IOCTL_RM_MAP, (unsigned long)map);
9a186645
DA		 286}
287
288typedef struct drm_client32 {
b5e89ed5
DA		 289 int idx; /**< Which client desired? */
290 int auth; /**< Is client authenticated? */
291 u32 pid; /**< Process ID */
292 u32 uid; /**< User ID */
293 u32 magic; /**< Magic */
294 u32 iocs; /**< Ioctl count */
9a186645
DA		 295} drm_client32_t;
296
297static int compat_drm_getclient(struct file *file, unsigned int cmd,
298 unsigned long arg)
299{
300 drm_client32_t c32;
301 drm_client32_t __user *argp = (void __user *)arg;
ff4135ae 302 struct drm_client __user *client;
9a186645
DA		 303 int idx, err;
304
305 if (get_user(idx, &argp->idx))
306 return -EFAULT;
307
308 client = compat_alloc_user_space(sizeof(*client));
309 if (!access_ok(VERIFY_WRITE, client, sizeof(*client)))
310 return -EFAULT;
311 if (__put_user(idx, &client->idx))
312 return -EFAULT;
313
ed8b6704 314 err = drm_ioctl(file, DRM_IOCTL_GET_CLIENT, (unsigned long)client);
9a186645
DA		 315 if (err)
316 return err;
317
318 if (__get_user(c32.auth, &client->auth)
319 || __get_user(c32.pid, &client->pid)
320 || __get_user(c32.uid, &client->uid)
321 || __get_user(c32.magic, &client->magic)
322 || __get_user(c32.iocs, &client->iocs))
323 return -EFAULT;
324
325 if (copy_to_user(argp, &c32, sizeof(c32)))
326 return -EFAULT;
327 return 0;
328}
329
330typedef struct drm_stats32 {
331 u32 count;
332 struct {
333 u32 value;
ff4135ae 334 enum drm_stat_type type;
9a186645
DA		 335 } data[15];
336} drm_stats32_t;
337
338static int compat_drm_getstats(struct file *file, unsigned int cmd,
339 unsigned long arg)
340{
341 drm_stats32_t s32;
342 drm_stats32_t __user *argp = (void __user *)arg;
ff4135ae 343 struct drm_stats __user *stats;
9a186645
DA		 344 int i, err;
345
346 stats = compat_alloc_user_space(sizeof(*stats));
347 if (!access_ok(VERIFY_WRITE, stats, sizeof(*stats)))
348 return -EFAULT;
349
ed8b6704 350 err = drm_ioctl(file, DRM_IOCTL_GET_STATS, (unsigned long)stats);
9a186645
DA		 351 if (err)
352 return err;
353
354 if (__get_user(s32.count, &stats->count))
355 return -EFAULT;
356 for (i = 0; i < 15; ++i)
357 if (__get_user(s32.data[i].value, &stats->data[i].value)
358 || __get_user(s32.data[i].type, &stats->data[i].type))
359 return -EFAULT;
360
361 if (copy_to_user(argp, &s32, sizeof(s32)))
362 return -EFAULT;
363 return 0;
364}
365
366typedef struct drm_buf_desc32 {
b5e89ed5
DA		 367 int count; /**< Number of buffers of this size */
368 int size; /**< Size in bytes */
369 int low_mark; /**< Low water mark */
370 int high_mark; /**< High water mark */
371 int flags;
372 u32 agp_start; /**< Start address in the AGP aperture */
9a186645
DA		 373} drm_buf_desc32_t;
374
375static int compat_drm_addbufs(struct file *file, unsigned int cmd,
376 unsigned long arg)
377{
378 drm_buf_desc32_t __user *argp = (void __user *)arg;
ff4135ae 379 struct drm_buf_desc __user *buf;
9a186645
DA		 380 int err;
381 unsigned long agp_start;
382
383 buf = compat_alloc_user_space(sizeof(*buf));
384 if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf))
385 || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)))
386 return -EFAULT;
387
388 if (__copy_in_user(buf, argp, offsetof(drm_buf_desc32_t, agp_start))
389 || __get_user(agp_start, &argp->agp_start)
390 || __put_user(agp_start, &buf->agp_start))
391 return -EFAULT;
392
ed8b6704 393 err = drm_ioctl(file, DRM_IOCTL_ADD_BUFS, (unsigned long)buf);
9a186645
DA		 394 if (err)
395 return err;
396
397 if (__copy_in_user(argp, buf, offsetof(drm_buf_desc32_t, agp_start))
398 || __get_user(agp_start, &buf->agp_start)
399 || __put_user(agp_start, &argp->agp_start))
400 return -EFAULT;
401
402 return 0;
403}
404
405static int compat_drm_markbufs(struct file *file, unsigned int cmd,
406 unsigned long arg)
407{
408 drm_buf_desc32_t b32;
409 drm_buf_desc32_t __user *argp = (void __user *)arg;
ff4135ae 410 struct drm_buf_desc __user *buf;
9a186645
DA		 411
412 if (copy_from_user(&b32, argp, sizeof(b32)))
413 return -EFAULT;
414
415 buf = compat_alloc_user_space(sizeof(*buf));
416 if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf)))
417 return -EFAULT;
418
419 if (__put_user(b32.size, &buf->size)
420 || __put_user(b32.low_mark, &buf->low_mark)
421 || __put_user(b32.high_mark, &buf->high_mark))
422 return -EFAULT;
423
ed8b6704 424 return drm_ioctl(file, DRM_IOCTL_MARK_BUFS, (unsigned long)buf);
9a186645
DA		 425}
426
427typedef struct drm_buf_info32 {
b5e89ed5
DA		 428 int count; /**< Entries in list */
429 u32 list;
9a186645
DA		 430} drm_buf_info32_t;
431
432static int compat_drm_infobufs(struct file *file, unsigned int cmd,
433 unsigned long arg)
434{
435 drm_buf_info32_t req32;
436 drm_buf_info32_t __user *argp = (void __user *)arg;
437 drm_buf_desc32_t __user *to;
ff4135ae
DA		 438 struct drm_buf_info __user *request;
439 struct drm_buf_desc __user *list;
9a186645
DA		 440 size_t nbytes;
441 int i, err;
442 int count, actual;
443
444 if (copy_from_user(&req32, argp, sizeof(req32)))
445 return -EFAULT;
446
447 count = req32.count;
b5e89ed5 448 to = (drm_buf_desc32_t __user *) (unsigned long)req32.list;
9a186645
DA		 449 if (count < 0)
450 count = 0;
451 if (count > 0
452 && !access_ok(VERIFY_WRITE, to, count * sizeof(drm_buf_desc32_t)))
453 return -EFAULT;
454
ff4135ae 455 nbytes = sizeof(*request) + count * sizeof(struct drm_buf_desc);
9a186645
DA		 456 request = compat_alloc_user_space(nbytes);
457 if (!access_ok(VERIFY_WRITE, request, nbytes))
458 return -EFAULT;
ff4135ae 459 list = (struct drm_buf_desc *) (request + 1);
9a186645
DA		 460
461 if (__put_user(count, &request->count)
462 || __put_user(list, &request->list))
463 return -EFAULT;
464
ed8b6704 465 err = drm_ioctl(file, DRM_IOCTL_INFO_BUFS, (unsigned long)request);
9a186645
DA		 466 if (err)
467 return err;
468
469 if (__get_user(actual, &request->count))
470 return -EFAULT;
471 if (count >= actual)
472 for (i = 0; i < actual; ++i)
473 if (__copy_in_user(&to[i], &list[i],
ff4135ae 474 offsetof(struct drm_buf_desc, flags)))
9a186645
DA		 475 return -EFAULT;
476
477 if (__put_user(actual, &argp->count))
478 return -EFAULT;
479
480 return 0;
481}
482
483typedef struct drm_buf_pub32 {
b5e89ed5
DA		 484 int idx; /**< Index into the master buffer list */
485 int total; /**< Buffer size */
486 int used; /**< Amount of buffer in use (for DMA) */
487 u32 address; /**< Address of buffer */
9a186645
DA		 488} drm_buf_pub32_t;
489
490typedef struct drm_buf_map32 {
b5e89ed5
DA		 491 int count; /**< Length of the buffer list */
492 u32 virtual; /**< Mmap'd area in user-virtual */
493 u32 list; /**< Buffer information */
9a186645
DA		 494} drm_buf_map32_t;
495
496static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
497 unsigned long arg)
498{
499 drm_buf_map32_t __user *argp = (void __user *)arg;
500 drm_buf_map32_t req32;
501 drm_buf_pub32_t __user *list32;
ff4135ae
DA		 502 struct drm_buf_map __user *request;
503 struct drm_buf_pub __user *list;
9a186645
DA		 504 int i, err;
505 int count, actual;
506 size_t nbytes;
507 void __user *addr;
508
509 if (copy_from_user(&req32, argp, sizeof(req32)))
510 return -EFAULT;
511 count = req32.count;
512 list32 = (void __user *)(unsigned long)req32.list;
513
514 if (count < 0)
515 return -EINVAL;
ff4135ae 516 nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub);
9a186645
DA		 517 request = compat_alloc_user_space(nbytes);
518 if (!access_ok(VERIFY_WRITE, request, nbytes))
519 return -EFAULT;
ff4135ae 520 list = (struct drm_buf_pub *) (request + 1);
9a186645
DA		 521
522 if (__put_user(count, &request->count)
523 || __put_user(list, &request->list))
524 return -EFAULT;
525
ed8b6704 526 err = drm_ioctl(file, DRM_IOCTL_MAP_BUFS, (unsigned long)request);
9a186645
DA		 527 if (err)
528 return err;
529
530 if (__get_user(actual, &request->count))
531 return -EFAULT;
532 if (count >= actual)
533 for (i = 0; i < actual; ++i)
534 if (__copy_in_user(&list32[i], &list[i],
ff4135ae 535 offsetof(struct drm_buf_pub, address))
9a186645 536 || __get_user(addr, &list[i].address)
b5e89ed5 537 || __put_user((unsigned long)addr,
9a186645
DA		 538 &list32[i].address))
539 return -EFAULT;
540
541 if (__put_user(actual, &argp->count)
542 || __get_user(addr, &request->virtual)
b5e89ed5 543 || __put_user((unsigned long)addr, &argp->virtual))
9a186645
DA		 544 return -EFAULT;
545
546 return 0;
547}
548
549typedef struct drm_buf_free32 {
b5e89ed5
DA		 550 int count;
551 u32 list;
9a186645
DA		 552} drm_buf_free32_t;
553
554static int compat_drm_freebufs(struct file *file, unsigned int cmd,
555 unsigned long arg)
556{
557 drm_buf_free32_t req32;
ff4135ae 558 struct drm_buf_free __user *request;
9a186645
DA		 559 drm_buf_free32_t __user *argp = (void __user *)arg;
560
561 if (copy_from_user(&req32, argp, sizeof(req32)))
562 return -EFAULT;
563
564 request = compat_alloc_user_space(sizeof(*request));
565 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
566 return -EFAULT;
567 if (__put_user(req32.count, &request->count)
b5e89ed5 568 || __put_user((int __user *)(unsigned long)req32.list,
9a186645
DA		 569 &request->list))
570 return -EFAULT;
571
ed8b6704 572 return drm_ioctl(file, DRM_IOCTL_FREE_BUFS, (unsigned long)request);
9a186645
DA		 573}
574
575typedef struct drm_ctx_priv_map32 {
b5e89ed5
DA		 576 unsigned int ctx_id; /**< Context requesting private mapping */
577 u32 handle; /**< Handle of map */
9a186645
DA		 578} drm_ctx_priv_map32_t;
579
580static int compat_drm_setsareactx(struct file *file, unsigned int cmd,
581 unsigned long arg)
582{
583 drm_ctx_priv_map32_t req32;
ff4135ae 584 struct drm_ctx_priv_map __user *request;
9a186645
DA		 585 drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
586
587 if (copy_from_user(&req32, argp, sizeof(req32)))
588 return -EFAULT;
589
590 request = compat_alloc_user_space(sizeof(*request));
591 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
592 return -EFAULT;
593 if (__put_user(req32.ctx_id, &request->ctx_id)
b5e89ed5 594 || __put_user((void *)(unsigned long)req32.handle,
9a186645
DA		 595 &request->handle))
596 return -EFAULT;
597
ed8b6704 598 return drm_ioctl(file, DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request);
9a186645
DA		 599}
600
601static int compat_drm_getsareactx(struct file *file, unsigned int cmd,
602 unsigned long arg)
603{
ff4135ae 604 struct drm_ctx_priv_map __user *request;
9a186645
DA		 605 drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
606 int err;
607 unsigned int ctx_id;
608 void *handle;
609
610 if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp))
611 || __get_user(ctx_id, &argp->ctx_id))
612 return -EFAULT;
613
614 request = compat_alloc_user_space(sizeof(*request));
615 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
616 return -EFAULT;
617 if (__put_user(ctx_id, &request->ctx_id))
618 return -EFAULT;
619
ed8b6704 620 err = drm_ioctl(file, DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request);
9a186645
DA		 621 if (err)
622 return err;
623
624 if (__get_user(handle, &request->handle)
b5e89ed5 625 || __put_user((unsigned long)handle, &argp->handle))
9a186645
DA		 626 return -EFAULT;
627
628 return 0;
629}
630
631typedef struct drm_ctx_res32 {
b5e89ed5
DA		 632 int count;
633 u32 contexts;
9a186645
DA		 634} drm_ctx_res32_t;
635
636static int compat_drm_resctx(struct file *file, unsigned int cmd,
637 unsigned long arg)
638{
639 drm_ctx_res32_t __user *argp = (void __user *)arg;
640 drm_ctx_res32_t res32;
ff4135ae 641 struct drm_ctx_res __user *res;
9a186645
DA		 642 int err;
643
644 if (copy_from_user(&res32, argp, sizeof(res32)))
645 return -EFAULT;
646
647 res = compat_alloc_user_space(sizeof(*res));
648 if (!access_ok(VERIFY_WRITE, res, sizeof(*res)))
649 return -EFAULT;
650 if (__put_user(res32.count, &res->count)
ff4135ae 651 || __put_user((struct drm_ctx __user *) (unsigned long)res32.contexts,
9a186645
DA		 652 &res->contexts))
653 return -EFAULT;
654
ed8b6704 655 err = drm_ioctl(file, DRM_IOCTL_RES_CTX, (unsigned long)res);
9a186645
DA		 656 if (err)
657 return err;
658
659 if (__get_user(res32.count, &res->count)
660 || __put_user(res32.count, &argp->count))
661 return -EFAULT;
662
663 return 0;
664}
665
666typedef struct drm_dma32 {
b5e89ed5
DA		 667 int context; /**< Context handle */
668 int send_count; /**< Number of buffers to send */
669 u32 send_indices; /**< List of handles to buffers */
670 u32 send_sizes; /**< Lengths of data to send */
ff4135ae 671 enum drm_dma_flags flags; /**< Flags */
b5e89ed5
DA		 672 int request_count; /**< Number of buffers requested */
673 int request_size; /**< Desired size for buffers */
674 u32 request_indices; /**< Buffer information */
675 u32 request_sizes;
676 int granted_count; /**< Number of buffers granted */
9a186645
DA		 677} drm_dma32_t;
678
679static int compat_drm_dma(struct file *file, unsigned int cmd,
680 unsigned long arg)
681{
682 drm_dma32_t d32;
b5e89ed5 683 drm_dma32_t __user *argp = (void __user *)arg;
ff4135ae 684 struct drm_dma __user *d;
9a186645
DA		 685 int err;
686
687 if (copy_from_user(&d32, argp, sizeof(d32)))
688 return -EFAULT;
689
690 d = compat_alloc_user_space(sizeof(*d));
691 if (!access_ok(VERIFY_WRITE, d, sizeof(*d)))
692 return -EFAULT;
693
694 if (__put_user(d32.context, &d->context)
695 || __put_user(d32.send_count, &d->send_count)
b5e89ed5 696 || __put_user((int __user *)(unsigned long)d32.send_indices,
9a186645 697 &d->send_indices)
b5e89ed5 698 || __put_user((int __user *)(unsigned long)d32.send_sizes,
9a186645
DA		 699 &d->send_sizes)
700 || __put_user(d32.flags, &d->flags)
701 || __put_user(d32.request_count, &d->request_count)
b5e89ed5 702 || __put_user((int __user *)(unsigned long)d32.request_indices,
9a186645 703 &d->request_indices)
b5e89ed5 704 || __put_user((int __user *)(unsigned long)d32.request_sizes,
9a186645
DA		 705 &d->request_sizes))
706 return -EFAULT;
707
ed8b6704 708 err = drm_ioctl(file, DRM_IOCTL_DMA, (unsigned long)d);
9a186645
DA		 709 if (err)
710 return err;
711
712 if (__get_user(d32.request_size, &d->request_size)
713 || __get_user(d32.granted_count, &d->granted_count)
714 || __put_user(d32.request_size, &argp->request_size)
715 || __put_user(d32.granted_count, &argp->granted_count))
716 return -EFAULT;
717
718 return 0;
719}
720
721#if __OS_HAS_AGP
722typedef struct drm_agp_mode32 {
723 u32 mode; /**< AGP mode */
724} drm_agp_mode32_t;
725
726static int compat_drm_agp_enable(struct file *file, unsigned int cmd,
727 unsigned long arg)
728{
729 drm_agp_mode32_t __user *argp = (void __user *)arg;
730 drm_agp_mode32_t m32;
ff4135ae 731 struct drm_agp_mode __user *mode;
9a186645
DA		 732
733 if (get_user(m32.mode, &argp->mode))
734 return -EFAULT;
735
736 mode = compat_alloc_user_space(sizeof(*mode));
737 if (put_user(m32.mode, &mode->mode))
738 return -EFAULT;
739
ed8b6704 740 return drm_ioctl(file, DRM_IOCTL_AGP_ENABLE, (unsigned long)mode);
9a186645
DA		 741}
742
743typedef struct drm_agp_info32 {
b5e89ed5
DA		 744 int agp_version_major;
745 int agp_version_minor;
746 u32 mode;
747 u32 aperture_base; /* physical address */
748 u32 aperture_size; /* bytes */
749 u32 memory_allowed; /* bytes */
750 u32 memory_used;
751
752 /* PCI information */
9a186645
DA		 753 unsigned short id_vendor;
754 unsigned short id_device;
755} drm_agp_info32_t;
756
757static int compat_drm_agp_info(struct file *file, unsigned int cmd,
758 unsigned long arg)
759{
760 drm_agp_info32_t __user *argp = (void __user *)arg;
761 drm_agp_info32_t i32;
ff4135ae 762 struct drm_agp_info __user *info;
9a186645
DA		 763 int err;
764
765 info = compat_alloc_user_space(sizeof(*info));
766 if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
767 return -EFAULT;
768
ed8b6704 769 err = drm_ioctl(file, DRM_IOCTL_AGP_INFO, (unsigned long)info);
9a186645
DA		 770 if (err)
771 return err;
772
773 if (__get_user(i32.agp_version_major, &info->agp_version_major)
774 || __get_user(i32.agp_version_minor, &info->agp_version_minor)
775 || __get_user(i32.mode, &info->mode)
776 || __get_user(i32.aperture_base, &info->aperture_base)
777 || __get_user(i32.aperture_size, &info->aperture_size)
778 || __get_user(i32.memory_allowed, &info->memory_allowed)
779 || __get_user(i32.memory_used, &info->memory_used)
780 || __get_user(i32.id_vendor, &info->id_vendor)
781 || __get_user(i32.id_device, &info->id_device))
782 return -EFAULT;
783
784 if (copy_to_user(argp, &i32, sizeof(i32)))
785 return -EFAULT;
786
787 return 0;
788}
789
790typedef struct drm_agp_buffer32 {
791 u32 size; /**< In bytes -- will round to page boundary */
792 u32 handle; /**< Used for binding / unbinding */
793 u32 type; /**< Type of memory to allocate */
b5e89ed5 794 u32 physical; /**< Physical used by i810 */
9a186645
DA		 795} drm_agp_buffer32_t;
796
797static int compat_drm_agp_alloc(struct file *file, unsigned int cmd,
798 unsigned long arg)
799{
800 drm_agp_buffer32_t __user *argp = (void __user *)arg;
801 drm_agp_buffer32_t req32;
ff4135ae 802 struct drm_agp_buffer __user *request;
9a186645
DA		 803 int err;
804
805 if (copy_from_user(&req32, argp, sizeof(req32)))
806 return -EFAULT;
807
808 request = compat_alloc_user_space(sizeof(*request));
809 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
810 || __put_user(req32.size, &request->size)
811 || __put_user(req32.type, &request->type))
812 return -EFAULT;
813
ed8b6704 814 err = drm_ioctl(file, DRM_IOCTL_AGP_ALLOC, (unsigned long)request);
9a186645
DA		 815 if (err)
816 return err;
817
818 if (__get_user(req32.handle, &request->handle)
819 || __get_user(req32.physical, &request->physical)
820 || copy_to_user(argp, &req32, sizeof(req32))) {
ed8b6704 821 drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request);
9a186645
DA		 822 return -EFAULT;
823 }
824
825 return 0;
826}
827
828static int compat_drm_agp_free(struct file *file, unsigned int cmd,
829 unsigned long arg)
830{
831 drm_agp_buffer32_t __user *argp = (void __user *)arg;
ff4135ae 832 struct drm_agp_buffer __user *request;
9a186645
DA		 833 u32 handle;
834
835 request = compat_alloc_user_space(sizeof(*request));
836 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
837 || get_user(handle, &argp->handle)
838 || __put_user(handle, &request->handle))
839 return -EFAULT;
840
ed8b6704 841 return drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request);
9a186645
DA		 842}
843
844typedef struct drm_agp_binding32 {
845 u32 handle; /**< From drm_agp_buffer */
846 u32 offset; /**< In bytes -- will round to page boundary */
847} drm_agp_binding32_t;
848
849static int compat_drm_agp_bind(struct file *file, unsigned int cmd,
850 unsigned long arg)
851{
852 drm_agp_binding32_t __user *argp = (void __user *)arg;
853 drm_agp_binding32_t req32;
ff4135ae 854 struct drm_agp_binding __user *request;
9a186645
DA		 855
856 if (copy_from_user(&req32, argp, sizeof(req32)))
857 return -EFAULT;
858
859 request = compat_alloc_user_space(sizeof(*request));
860 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
861 || __put_user(req32.handle, &request->handle)
862 || __put_user(req32.offset, &request->offset))
863 return -EFAULT;
864
ed8b6704 865 return drm_ioctl(file, DRM_IOCTL_AGP_BIND, (unsigned long)request);
9a186645
DA		 866}
867
868static int compat_drm_agp_unbind(struct file *file, unsigned int cmd,
869 unsigned long arg)
870{
871 drm_agp_binding32_t __user *argp = (void __user *)arg;
ff4135ae 872 struct drm_agp_binding __user *request;
9a186645
DA		 873 u32 handle;
874
875 request = compat_alloc_user_space(sizeof(*request));
876 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
877 || get_user(handle, &argp->handle)
878 || __put_user(handle, &request->handle))
879 return -EFAULT;
880
ed8b6704 881 return drm_ioctl(file, DRM_IOCTL_AGP_UNBIND, (unsigned long)request);
9a186645 882}
b5e89ed5 883#endif /* __OS_HAS_AGP */
9a186645
DA		 884
885typedef struct drm_scatter_gather32 {
886 u32 size; /**< In bytes -- will round to page boundary */
887 u32 handle; /**< Used for mapping / unmapping */
888} drm_scatter_gather32_t;
889
890static int compat_drm_sg_alloc(struct file *file, unsigned int cmd,
891 unsigned long arg)
892{
893 drm_scatter_gather32_t __user *argp = (void __user *)arg;
ff4135ae 894 struct drm_scatter_gather __user *request;
9a186645
DA		 895 int err;
896 unsigned long x;
897
898 request = compat_alloc_user_space(sizeof(*request));
899 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
900 || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
901 || __get_user(x, &argp->size)
902 || __put_user(x, &request->size))
903 return -EFAULT;
904
ed8b6704 905 err = drm_ioctl(file, DRM_IOCTL_SG_ALLOC, (unsigned long)request);
9a186645
DA		 906 if (err)
907 return err;
908
909 /* XXX not sure about the handle conversion here... */
910 if (__get_user(x, &request->handle)
911 || __put_user(x >> PAGE_SHIFT, &argp->handle))
912 return -EFAULT;
913
914 return 0;
915}
916
917static int compat_drm_sg_free(struct file *file, unsigned int cmd,
918 unsigned long arg)
919{
920 drm_scatter_gather32_t __user *argp = (void __user *)arg;
ff4135ae 921 struct drm_scatter_gather __user *request;
9a186645
DA		 922 unsigned long x;
923
924 request = compat_alloc_user_space(sizeof(*request));
925 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
926 || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
927 || __get_user(x, &argp->handle)
928 || __put_user(x << PAGE_SHIFT, &request->handle))
929 return -EFAULT;
930
ed8b6704 931 return drm_ioctl(file, DRM_IOCTL_SG_FREE, (unsigned long)request);
9a186645
DA		 932}
933
09e40d65 934#if defined(CONFIG_X86) || defined(CONFIG_IA64)
49568873
EA		 935typedef struct drm_update_draw32 {
936 drm_drawable_t handle;
937 unsigned int type;
938 unsigned int num;
939 /* 64-bit version has a 32-bit pad here */
940 u64 data; /**< Pointer */
941} __attribute__((packed)) drm_update_draw32_t;
942
943static int compat_drm_update_draw(struct file *file, unsigned int cmd,
944 unsigned long arg)
945{
946 drm_update_draw32_t update32;
947 struct drm_update_draw __user *request;
948 int err;
949
950 if (copy_from_user(&update32, (void __user *)arg, sizeof(update32)))
951 return -EFAULT;
952
953 request = compat_alloc_user_space(sizeof(*request));
954 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) ||
955 __put_user(update32.handle, &request->handle) ||
956 __put_user(update32.type, &request->type) ||
957 __put_user(update32.num, &request->num) ||
958 __put_user(update32.data, &request->data))
959 return -EFAULT;
960
ed8b6704 961 err = drm_ioctl(file, DRM_IOCTL_UPDATE_DRAW, (unsigned long)request);
49568873
EA		 962 return err;
963}
09e40d65 964#endif
49568873 965
9a186645 966struct drm_wait_vblank_request32 {
ff4135ae 967 enum drm_vblank_seq_type type;
9a186645
DA		 968 unsigned int sequence;
969 u32 signal;
970};
971
972struct drm_wait_vblank_reply32 {
ff4135ae 973 enum drm_vblank_seq_type type;
9a186645
DA		 974 unsigned int sequence;
975 s32 tval_sec;
976 s32 tval_usec;
977};
978
979typedef union drm_wait_vblank32 {
980 struct drm_wait_vblank_request32 request;
981 struct drm_wait_vblank_reply32 reply;
982} drm_wait_vblank32_t;
983
984static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
985 unsigned long arg)
986{
987 drm_wait_vblank32_t __user *argp = (void __user *)arg;
988 drm_wait_vblank32_t req32;
ff4135ae 989 union drm_wait_vblank __user *request;
9a186645
DA		 990 int err;
991
992 if (copy_from_user(&req32, argp, sizeof(req32)))
993 return -EFAULT;
994
995 request = compat_alloc_user_space(sizeof(*request));
996 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
997 || __put_user(req32.request.type, &request->request.type)
998 || __put_user(req32.request.sequence, &request->request.sequence)
999 || __put_user(req32.request.signal, &request->request.signal))
1000 return -EFAULT;
1001
ed8b6704 1002 err = drm_ioctl(file, DRM_IOCTL_WAIT_VBLANK, (unsigned long)request);
9a186645
DA		 1003 if (err)
1004 return err;
1005
1006 if (__get_user(req32.reply.type, &request->reply.type)
1007 || __get_user(req32.reply.sequence, &request->reply.sequence)
1008 || __get_user(req32.reply.tval_sec, &request->reply.tval_sec)
1009 || __get_user(req32.reply.tval_usec, &request->reply.tval_usec))
1010 return -EFAULT;
1011
1012 if (copy_to_user(argp, &req32, sizeof(req32)))
1013 return -EFAULT;
1014
1015 return 0;
1016}
1017
1018drm_ioctl_compat_t *drm_compat_ioctls[] = {
1019 [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
1020 [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
1021 [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
1022 [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)] = compat_drm_getclient,
1023 [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)] = compat_drm_getstats,
1024 [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE32)] = compat_drm_setunique,
1025 [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)] = compat_drm_addmap,
1026 [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS32)] = compat_drm_addbufs,
1027 [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)] = compat_drm_markbufs,
1028 [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS32)] = compat_drm_infobufs,
1029 [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)] = compat_drm_mapbufs,
1030 [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)] = compat_drm_freebufs,
1031 [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)] = compat_drm_rmmap,
1032 [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX32)] = compat_drm_setsareactx,
1033 [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)] = compat_drm_getsareactx,
1034 [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)] = compat_drm_resctx,
1035 [DRM_IOCTL_NR(DRM_IOCTL_DMA32)] = compat_drm_dma,
1036#if __OS_HAS_AGP
1037 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)] = compat_drm_agp_enable,
1038 [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)] = compat_drm_agp_info,
1039 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)] = compat_drm_agp_alloc,
1040 [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)] = compat_drm_agp_free,
1041 [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)] = compat_drm_agp_bind,
1042 [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)] = compat_drm_agp_unbind,
1043#endif
1044 [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)] = compat_drm_sg_alloc,
1045 [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)] = compat_drm_sg_free,
09e40d65 1046#if defined(CONFIG_X86) || defined(CONFIG_IA64)
49568873 1047 [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW32)] = compat_drm_update_draw,
09e40d65 1048#endif
9a186645
DA		 1049 [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank,
1050};
1051
1052/**
1053 * Called whenever a 32-bit process running under a 64-bit kernel
1054 * performs an ioctl on /dev/drm.
1055 *
6c340eac 1056 * \param file_priv DRM file private.
9a186645
DA		 1057 * \param cmd command.
1058 * \param arg user argument.
1059 * \return zero on success or negative number on failure.
1060 */
1061long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
1062{
1063 unsigned int nr = DRM_IOCTL_NR(cmd);
1064 drm_ioctl_compat_t *fn;
1065 int ret;
1066
7ffa05e0
IR		 1067 /* Assume that ioctls without an explicit compat routine will just
1068 * work. This may not always be a good assumption, but it's better
1069 * than always failing.
1070 */
3d77461e 1071 if (nr >= ARRAY_SIZE(drm_compat_ioctls))
ed8b6704 1072 return drm_ioctl(filp, cmd, arg);
9a186645
DA		 1073
1074 fn = drm_compat_ioctls[nr];
1075
9a186645 1076 if (fn != NULL)
b5e89ed5 1077 ret = (*fn) (filp, cmd, arg);
9a186645 1078 else
ed8b6704 1079 ret = drm_ioctl(filp, cmd, arg);
9a186645
DA		 1080
1081 return ret;
1082}
b5e89ed5 1083
9a186645 1084EXPORT_SYMBOL(drm_compat_ioctl);
ubuntu-zesty-kernel mirror