Commit | Line | Data |
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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 | 33 | |
760285e7 DH |
34 | #include <drm/drmP.h> |
35 | #include <drm/drm_core.h> | |
9a186645 DA |
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 | ||
c631d5f9 TU |
73 | #define DRM_IOCTL_MODE_ADDFB232 DRM_IOWR(0xb8, drm_mode_fb_cmd232_t) |
74 | ||
9a186645 | 75 | typedef struct drm_version_32 { |
b5e89ed5 DA |
76 | int version_major; /**< Major version */ |
77 | int version_minor; /**< Minor version */ | |
78 | int version_patchlevel; /**< Patch level */ | |
79 | u32 name_len; /**< Length of name buffer */ | |
80 | u32 name; /**< Name of driver */ | |
81 | u32 date_len; /**< Length of date buffer */ | |
82 | u32 date; /**< User-space buffer to hold date */ | |
83 | u32 desc_len; /**< Length of desc buffer */ | |
84 | u32 desc; /**< User-space buffer to hold desc */ | |
9a186645 DA |
85 | } drm_version32_t; |
86 | ||
87 | static int compat_drm_version(struct file *file, unsigned int cmd, | |
88 | unsigned long arg) | |
89 | { | |
90 | drm_version32_t v32; | |
ff4135ae | 91 | struct drm_version __user *version; |
9a186645 DA |
92 | int err; |
93 | ||
b5e89ed5 | 94 | if (copy_from_user(&v32, (void __user *)arg, sizeof(v32))) |
9a186645 DA |
95 | return -EFAULT; |
96 | ||
97 | version = compat_alloc_user_space(sizeof(*version)); | |
1f96beec | 98 | if (!version) |
9a186645 DA |
99 | return -EFAULT; |
100 | if (__put_user(v32.name_len, &version->name_len) | |
101 | || __put_user((void __user *)(unsigned long)v32.name, | |
102 | &version->name) | |
103 | || __put_user(v32.date_len, &version->date_len) | |
104 | || __put_user((void __user *)(unsigned long)v32.date, | |
105 | &version->date) | |
106 | || __put_user(v32.desc_len, &version->desc_len) | |
107 | || __put_user((void __user *)(unsigned long)v32.desc, | |
108 | &version->desc)) | |
109 | return -EFAULT; | |
110 | ||
ed8b6704 | 111 | err = drm_ioctl(file, |
b5e89ed5 | 112 | DRM_IOCTL_VERSION, (unsigned long)version); |
9a186645 DA |
113 | if (err) |
114 | return err; | |
115 | ||
116 | if (__get_user(v32.version_major, &version->version_major) | |
117 | || __get_user(v32.version_minor, &version->version_minor) | |
118 | || __get_user(v32.version_patchlevel, &version->version_patchlevel) | |
119 | || __get_user(v32.name_len, &version->name_len) | |
120 | || __get_user(v32.date_len, &version->date_len) | |
121 | || __get_user(v32.desc_len, &version->desc_len)) | |
122 | return -EFAULT; | |
123 | ||
b5e89ed5 | 124 | if (copy_to_user((void __user *)arg, &v32, sizeof(v32))) |
9a186645 DA |
125 | return -EFAULT; |
126 | return 0; | |
127 | } | |
128 | ||
129 | typedef struct drm_unique32 { | |
130 | u32 unique_len; /**< Length of unique */ | |
131 | u32 unique; /**< Unique name for driver instantiation */ | |
132 | } drm_unique32_t; | |
133 | ||
134 | static int compat_drm_getunique(struct file *file, unsigned int cmd, | |
135 | unsigned long arg) | |
136 | { | |
137 | drm_unique32_t uq32; | |
ff4135ae | 138 | struct drm_unique __user *u; |
9a186645 DA |
139 | int err; |
140 | ||
b5e89ed5 | 141 | if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32))) |
9a186645 DA |
142 | return -EFAULT; |
143 | ||
144 | u = compat_alloc_user_space(sizeof(*u)); | |
1f96beec | 145 | if (!u) |
9a186645 DA |
146 | return -EFAULT; |
147 | if (__put_user(uq32.unique_len, &u->unique_len) | |
b5e89ed5 | 148 | || __put_user((void __user *)(unsigned long)uq32.unique, |
9a186645 DA |
149 | &u->unique)) |
150 | return -EFAULT; | |
151 | ||
ed8b6704 | 152 | err = drm_ioctl(file, DRM_IOCTL_GET_UNIQUE, (unsigned long)u); |
9a186645 DA |
153 | if (err) |
154 | return err; | |
155 | ||
156 | if (__get_user(uq32.unique_len, &u->unique_len)) | |
157 | return -EFAULT; | |
b5e89ed5 | 158 | if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32))) |
9a186645 DA |
159 | return -EFAULT; |
160 | return 0; | |
161 | } | |
162 | ||
163 | static int compat_drm_setunique(struct file *file, unsigned int cmd, | |
164 | unsigned long arg) | |
165 | { | |
166 | drm_unique32_t uq32; | |
ff4135ae | 167 | struct drm_unique __user *u; |
9a186645 | 168 | |
b5e89ed5 | 169 | if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32))) |
9a186645 DA |
170 | return -EFAULT; |
171 | ||
172 | u = compat_alloc_user_space(sizeof(*u)); | |
1f96beec | 173 | if (!u) |
9a186645 DA |
174 | return -EFAULT; |
175 | if (__put_user(uq32.unique_len, &u->unique_len) | |
b5e89ed5 | 176 | || __put_user((void __user *)(unsigned long)uq32.unique, |
9a186645 DA |
177 | &u->unique)) |
178 | return -EFAULT; | |
179 | ||
ed8b6704 | 180 | return drm_ioctl(file, DRM_IOCTL_SET_UNIQUE, (unsigned long)u); |
9a186645 DA |
181 | } |
182 | ||
183 | typedef struct drm_map32 { | |
b5e89ed5 DA |
184 | u32 offset; /**< Requested physical address (0 for SAREA)*/ |
185 | u32 size; /**< Requested physical size (bytes) */ | |
ff4135ae DA |
186 | enum drm_map_type type; /**< Type of memory to map */ |
187 | enum drm_map_flags flags; /**< Flags */ | |
b5e89ed5 DA |
188 | u32 handle; /**< User-space: "Handle" to pass to mmap() */ |
189 | int mtrr; /**< MTRR slot used */ | |
9a186645 DA |
190 | } drm_map32_t; |
191 | ||
192 | static int compat_drm_getmap(struct file *file, unsigned int cmd, | |
193 | unsigned long arg) | |
194 | { | |
195 | drm_map32_t __user *argp = (void __user *)arg; | |
196 | drm_map32_t m32; | |
ff4135ae | 197 | struct drm_map __user *map; |
9a186645 DA |
198 | int idx, err; |
199 | void *handle; | |
200 | ||
201 | if (get_user(idx, &argp->offset)) | |
202 | return -EFAULT; | |
203 | ||
204 | map = compat_alloc_user_space(sizeof(*map)); | |
1f96beec | 205 | if (!map) |
9a186645 DA |
206 | return -EFAULT; |
207 | if (__put_user(idx, &map->offset)) | |
208 | return -EFAULT; | |
209 | ||
ed8b6704 | 210 | err = drm_ioctl(file, DRM_IOCTL_GET_MAP, (unsigned long)map); |
9a186645 DA |
211 | if (err) |
212 | return err; | |
213 | ||
214 | if (__get_user(m32.offset, &map->offset) | |
215 | || __get_user(m32.size, &map->size) | |
216 | || __get_user(m32.type, &map->type) | |
217 | || __get_user(m32.flags, &map->flags) | |
218 | || __get_user(handle, &map->handle) | |
219 | || __get_user(m32.mtrr, &map->mtrr)) | |
220 | return -EFAULT; | |
221 | ||
b5e89ed5 | 222 | m32.handle = (unsigned long)handle; |
9a186645 DA |
223 | if (copy_to_user(argp, &m32, sizeof(m32))) |
224 | return -EFAULT; | |
225 | return 0; | |
226 | ||
227 | } | |
228 | ||
229 | static int compat_drm_addmap(struct file *file, unsigned int cmd, | |
230 | unsigned long arg) | |
231 | { | |
232 | drm_map32_t __user *argp = (void __user *)arg; | |
233 | drm_map32_t m32; | |
ff4135ae | 234 | struct drm_map __user *map; |
9a186645 DA |
235 | int err; |
236 | void *handle; | |
237 | ||
238 | if (copy_from_user(&m32, argp, sizeof(m32))) | |
239 | return -EFAULT; | |
240 | ||
241 | map = compat_alloc_user_space(sizeof(*map)); | |
1f96beec | 242 | if (!map) |
9a186645 DA |
243 | return -EFAULT; |
244 | if (__put_user(m32.offset, &map->offset) | |
245 | || __put_user(m32.size, &map->size) | |
246 | || __put_user(m32.type, &map->type) | |
247 | || __put_user(m32.flags, &map->flags)) | |
248 | return -EFAULT; | |
249 | ||
ed8b6704 | 250 | err = drm_ioctl(file, DRM_IOCTL_ADD_MAP, (unsigned long)map); |
9a186645 DA |
251 | if (err) |
252 | return err; | |
253 | ||
254 | if (__get_user(m32.offset, &map->offset) | |
255 | || __get_user(m32.mtrr, &map->mtrr) | |
256 | || __get_user(handle, &map->handle)) | |
257 | return -EFAULT; | |
258 | ||
b5e89ed5 | 259 | m32.handle = (unsigned long)handle; |
cafe8d84 CD |
260 | if (m32.handle != (unsigned long)handle) |
261 | printk_ratelimited(KERN_ERR "compat_drm_addmap truncated handle" | |
262 | " %p for type %d offset %x\n", | |
263 | handle, m32.type, m32.offset); | |
9a186645 DA |
264 | |
265 | if (copy_to_user(argp, &m32, sizeof(m32))) | |
266 | return -EFAULT; | |
267 | ||
268 | return 0; | |
269 | } | |
270 | ||
271 | static int compat_drm_rmmap(struct file *file, unsigned int cmd, | |
272 | unsigned long arg) | |
273 | { | |
274 | drm_map32_t __user *argp = (void __user *)arg; | |
ff4135ae | 275 | struct drm_map __user *map; |
9a186645 DA |
276 | u32 handle; |
277 | ||
278 | if (get_user(handle, &argp->handle)) | |
279 | return -EFAULT; | |
280 | ||
281 | map = compat_alloc_user_space(sizeof(*map)); | |
1f96beec | 282 | if (!map) |
9a186645 | 283 | return -EFAULT; |
b5e89ed5 | 284 | if (__put_user((void *)(unsigned long)handle, &map->handle)) |
9a186645 DA |
285 | return -EFAULT; |
286 | ||
ed8b6704 | 287 | return drm_ioctl(file, DRM_IOCTL_RM_MAP, (unsigned long)map); |
9a186645 DA |
288 | } |
289 | ||
290 | typedef struct drm_client32 { | |
b5e89ed5 DA |
291 | int idx; /**< Which client desired? */ |
292 | int auth; /**< Is client authenticated? */ | |
293 | u32 pid; /**< Process ID */ | |
294 | u32 uid; /**< User ID */ | |
295 | u32 magic; /**< Magic */ | |
296 | u32 iocs; /**< Ioctl count */ | |
9a186645 DA |
297 | } drm_client32_t; |
298 | ||
299 | static int compat_drm_getclient(struct file *file, unsigned int cmd, | |
300 | unsigned long arg) | |
301 | { | |
302 | drm_client32_t c32; | |
303 | drm_client32_t __user *argp = (void __user *)arg; | |
ff4135ae | 304 | struct drm_client __user *client; |
9a186645 DA |
305 | int idx, err; |
306 | ||
307 | if (get_user(idx, &argp->idx)) | |
308 | return -EFAULT; | |
309 | ||
310 | client = compat_alloc_user_space(sizeof(*client)); | |
1f96beec | 311 | if (!client) |
9a186645 DA |
312 | return -EFAULT; |
313 | if (__put_user(idx, &client->idx)) | |
314 | return -EFAULT; | |
315 | ||
ed8b6704 | 316 | err = drm_ioctl(file, DRM_IOCTL_GET_CLIENT, (unsigned long)client); |
9a186645 DA |
317 | if (err) |
318 | return err; | |
319 | ||
08bc3d4e JL |
320 | if (__get_user(c32.idx, &client->idx) |
321 | || __get_user(c32.auth, &client->auth) | |
9a186645 DA |
322 | || __get_user(c32.pid, &client->pid) |
323 | || __get_user(c32.uid, &client->uid) | |
324 | || __get_user(c32.magic, &client->magic) | |
325 | || __get_user(c32.iocs, &client->iocs)) | |
326 | return -EFAULT; | |
327 | ||
328 | if (copy_to_user(argp, &c32, sizeof(c32))) | |
329 | return -EFAULT; | |
330 | return 0; | |
331 | } | |
332 | ||
333 | typedef struct drm_stats32 { | |
334 | u32 count; | |
335 | struct { | |
336 | u32 value; | |
ff4135ae | 337 | enum drm_stat_type type; |
9a186645 DA |
338 | } data[15]; |
339 | } drm_stats32_t; | |
340 | ||
341 | static int compat_drm_getstats(struct file *file, unsigned int cmd, | |
342 | unsigned long arg) | |
343 | { | |
344 | drm_stats32_t s32; | |
345 | drm_stats32_t __user *argp = (void __user *)arg; | |
ff4135ae | 346 | struct drm_stats __user *stats; |
9a186645 DA |
347 | int i, err; |
348 | ||
ec913f31 | 349 | memset(&s32, 0, sizeof(drm_stats32_t)); |
9a186645 | 350 | stats = compat_alloc_user_space(sizeof(*stats)); |
1f96beec | 351 | if (!stats) |
9a186645 DA |
352 | return -EFAULT; |
353 | ||
ed8b6704 | 354 | err = drm_ioctl(file, DRM_IOCTL_GET_STATS, (unsigned long)stats); |
9a186645 DA |
355 | if (err) |
356 | return err; | |
357 | ||
358 | if (__get_user(s32.count, &stats->count)) | |
359 | return -EFAULT; | |
360 | for (i = 0; i < 15; ++i) | |
361 | if (__get_user(s32.data[i].value, &stats->data[i].value) | |
362 | || __get_user(s32.data[i].type, &stats->data[i].type)) | |
363 | return -EFAULT; | |
364 | ||
365 | if (copy_to_user(argp, &s32, sizeof(s32))) | |
366 | return -EFAULT; | |
367 | return 0; | |
368 | } | |
369 | ||
370 | typedef struct drm_buf_desc32 { | |
b5e89ed5 DA |
371 | int count; /**< Number of buffers of this size */ |
372 | int size; /**< Size in bytes */ | |
373 | int low_mark; /**< Low water mark */ | |
374 | int high_mark; /**< High water mark */ | |
375 | int flags; | |
376 | u32 agp_start; /**< Start address in the AGP aperture */ | |
9a186645 DA |
377 | } drm_buf_desc32_t; |
378 | ||
379 | static int compat_drm_addbufs(struct file *file, unsigned int cmd, | |
380 | unsigned long arg) | |
381 | { | |
382 | drm_buf_desc32_t __user *argp = (void __user *)arg; | |
ff4135ae | 383 | struct drm_buf_desc __user *buf; |
9a186645 DA |
384 | int err; |
385 | unsigned long agp_start; | |
386 | ||
387 | buf = compat_alloc_user_space(sizeof(*buf)); | |
1f96beec | 388 | if (!buf || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))) |
9a186645 DA |
389 | return -EFAULT; |
390 | ||
391 | if (__copy_in_user(buf, argp, offsetof(drm_buf_desc32_t, agp_start)) | |
392 | || __get_user(agp_start, &argp->agp_start) | |
393 | || __put_user(agp_start, &buf->agp_start)) | |
394 | return -EFAULT; | |
395 | ||
ed8b6704 | 396 | err = drm_ioctl(file, DRM_IOCTL_ADD_BUFS, (unsigned long)buf); |
9a186645 DA |
397 | if (err) |
398 | return err; | |
399 | ||
400 | if (__copy_in_user(argp, buf, offsetof(drm_buf_desc32_t, agp_start)) | |
401 | || __get_user(agp_start, &buf->agp_start) | |
402 | || __put_user(agp_start, &argp->agp_start)) | |
403 | return -EFAULT; | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
408 | static int compat_drm_markbufs(struct file *file, unsigned int cmd, | |
409 | unsigned long arg) | |
410 | { | |
411 | drm_buf_desc32_t b32; | |
412 | drm_buf_desc32_t __user *argp = (void __user *)arg; | |
ff4135ae | 413 | struct drm_buf_desc __user *buf; |
9a186645 DA |
414 | |
415 | if (copy_from_user(&b32, argp, sizeof(b32))) | |
416 | return -EFAULT; | |
417 | ||
418 | buf = compat_alloc_user_space(sizeof(*buf)); | |
1f96beec | 419 | if (!buf) |
9a186645 DA |
420 | return -EFAULT; |
421 | ||
422 | if (__put_user(b32.size, &buf->size) | |
423 | || __put_user(b32.low_mark, &buf->low_mark) | |
424 | || __put_user(b32.high_mark, &buf->high_mark)) | |
425 | return -EFAULT; | |
426 | ||
ed8b6704 | 427 | return drm_ioctl(file, DRM_IOCTL_MARK_BUFS, (unsigned long)buf); |
9a186645 DA |
428 | } |
429 | ||
430 | typedef struct drm_buf_info32 { | |
b5e89ed5 DA |
431 | int count; /**< Entries in list */ |
432 | u32 list; | |
9a186645 DA |
433 | } drm_buf_info32_t; |
434 | ||
435 | static int compat_drm_infobufs(struct file *file, unsigned int cmd, | |
436 | unsigned long arg) | |
437 | { | |
438 | drm_buf_info32_t req32; | |
439 | drm_buf_info32_t __user *argp = (void __user *)arg; | |
440 | drm_buf_desc32_t __user *to; | |
ff4135ae DA |
441 | struct drm_buf_info __user *request; |
442 | struct drm_buf_desc __user *list; | |
9a186645 DA |
443 | size_t nbytes; |
444 | int i, err; | |
445 | int count, actual; | |
446 | ||
447 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
448 | return -EFAULT; | |
449 | ||
450 | count = req32.count; | |
b5e89ed5 | 451 | to = (drm_buf_desc32_t __user *) (unsigned long)req32.list; |
9a186645 DA |
452 | if (count < 0) |
453 | count = 0; | |
454 | if (count > 0 | |
455 | && !access_ok(VERIFY_WRITE, to, count * sizeof(drm_buf_desc32_t))) | |
456 | return -EFAULT; | |
457 | ||
ff4135ae | 458 | nbytes = sizeof(*request) + count * sizeof(struct drm_buf_desc); |
9a186645 | 459 | request = compat_alloc_user_space(nbytes); |
1f96beec | 460 | if (!request) |
9a186645 | 461 | return -EFAULT; |
ff4135ae | 462 | list = (struct drm_buf_desc *) (request + 1); |
9a186645 DA |
463 | |
464 | if (__put_user(count, &request->count) | |
465 | || __put_user(list, &request->list)) | |
466 | return -EFAULT; | |
467 | ||
ed8b6704 | 468 | err = drm_ioctl(file, DRM_IOCTL_INFO_BUFS, (unsigned long)request); |
9a186645 DA |
469 | if (err) |
470 | return err; | |
471 | ||
472 | if (__get_user(actual, &request->count)) | |
473 | return -EFAULT; | |
474 | if (count >= actual) | |
475 | for (i = 0; i < actual; ++i) | |
476 | if (__copy_in_user(&to[i], &list[i], | |
ff4135ae | 477 | offsetof(struct drm_buf_desc, flags))) |
9a186645 DA |
478 | return -EFAULT; |
479 | ||
480 | if (__put_user(actual, &argp->count)) | |
481 | return -EFAULT; | |
482 | ||
483 | return 0; | |
484 | } | |
485 | ||
486 | typedef struct drm_buf_pub32 { | |
b5e89ed5 DA |
487 | int idx; /**< Index into the master buffer list */ |
488 | int total; /**< Buffer size */ | |
489 | int used; /**< Amount of buffer in use (for DMA) */ | |
490 | u32 address; /**< Address of buffer */ | |
9a186645 DA |
491 | } drm_buf_pub32_t; |
492 | ||
493 | typedef struct drm_buf_map32 { | |
b5e89ed5 DA |
494 | int count; /**< Length of the buffer list */ |
495 | u32 virtual; /**< Mmap'd area in user-virtual */ | |
496 | u32 list; /**< Buffer information */ | |
9a186645 DA |
497 | } drm_buf_map32_t; |
498 | ||
499 | static int compat_drm_mapbufs(struct file *file, unsigned int cmd, | |
500 | unsigned long arg) | |
501 | { | |
502 | drm_buf_map32_t __user *argp = (void __user *)arg; | |
503 | drm_buf_map32_t req32; | |
504 | drm_buf_pub32_t __user *list32; | |
ff4135ae DA |
505 | struct drm_buf_map __user *request; |
506 | struct drm_buf_pub __user *list; | |
9a186645 DA |
507 | int i, err; |
508 | int count, actual; | |
509 | size_t nbytes; | |
510 | void __user *addr; | |
511 | ||
512 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
513 | return -EFAULT; | |
514 | count = req32.count; | |
515 | list32 = (void __user *)(unsigned long)req32.list; | |
516 | ||
517 | if (count < 0) | |
518 | return -EINVAL; | |
ff4135ae | 519 | nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub); |
9a186645 | 520 | request = compat_alloc_user_space(nbytes); |
1f96beec | 521 | if (!request) |
9a186645 | 522 | return -EFAULT; |
ff4135ae | 523 | list = (struct drm_buf_pub *) (request + 1); |
9a186645 DA |
524 | |
525 | if (__put_user(count, &request->count) | |
526 | || __put_user(list, &request->list)) | |
527 | return -EFAULT; | |
528 | ||
ed8b6704 | 529 | err = drm_ioctl(file, DRM_IOCTL_MAP_BUFS, (unsigned long)request); |
9a186645 DA |
530 | if (err) |
531 | return err; | |
532 | ||
533 | if (__get_user(actual, &request->count)) | |
534 | return -EFAULT; | |
535 | if (count >= actual) | |
536 | for (i = 0; i < actual; ++i) | |
537 | if (__copy_in_user(&list32[i], &list[i], | |
ff4135ae | 538 | offsetof(struct drm_buf_pub, address)) |
9a186645 | 539 | || __get_user(addr, &list[i].address) |
b5e89ed5 | 540 | || __put_user((unsigned long)addr, |
9a186645 DA |
541 | &list32[i].address)) |
542 | return -EFAULT; | |
543 | ||
544 | if (__put_user(actual, &argp->count) | |
545 | || __get_user(addr, &request->virtual) | |
b5e89ed5 | 546 | || __put_user((unsigned long)addr, &argp->virtual)) |
9a186645 DA |
547 | return -EFAULT; |
548 | ||
549 | return 0; | |
550 | } | |
551 | ||
552 | typedef struct drm_buf_free32 { | |
b5e89ed5 DA |
553 | int count; |
554 | u32 list; | |
9a186645 DA |
555 | } drm_buf_free32_t; |
556 | ||
557 | static int compat_drm_freebufs(struct file *file, unsigned int cmd, | |
558 | unsigned long arg) | |
559 | { | |
560 | drm_buf_free32_t req32; | |
ff4135ae | 561 | struct drm_buf_free __user *request; |
9a186645 DA |
562 | drm_buf_free32_t __user *argp = (void __user *)arg; |
563 | ||
564 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
565 | return -EFAULT; | |
566 | ||
567 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 568 | if (!request) |
9a186645 DA |
569 | return -EFAULT; |
570 | if (__put_user(req32.count, &request->count) | |
b5e89ed5 | 571 | || __put_user((int __user *)(unsigned long)req32.list, |
9a186645 DA |
572 | &request->list)) |
573 | return -EFAULT; | |
574 | ||
ed8b6704 | 575 | return drm_ioctl(file, DRM_IOCTL_FREE_BUFS, (unsigned long)request); |
9a186645 DA |
576 | } |
577 | ||
578 | typedef struct drm_ctx_priv_map32 { | |
b5e89ed5 DA |
579 | unsigned int ctx_id; /**< Context requesting private mapping */ |
580 | u32 handle; /**< Handle of map */ | |
9a186645 DA |
581 | } drm_ctx_priv_map32_t; |
582 | ||
583 | static int compat_drm_setsareactx(struct file *file, unsigned int cmd, | |
584 | unsigned long arg) | |
585 | { | |
586 | drm_ctx_priv_map32_t req32; | |
ff4135ae | 587 | struct drm_ctx_priv_map __user *request; |
9a186645 DA |
588 | drm_ctx_priv_map32_t __user *argp = (void __user *)arg; |
589 | ||
590 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
591 | return -EFAULT; | |
592 | ||
593 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 594 | if (!request) |
9a186645 DA |
595 | return -EFAULT; |
596 | if (__put_user(req32.ctx_id, &request->ctx_id) | |
b5e89ed5 | 597 | || __put_user((void *)(unsigned long)req32.handle, |
9a186645 DA |
598 | &request->handle)) |
599 | return -EFAULT; | |
600 | ||
ed8b6704 | 601 | return drm_ioctl(file, DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request); |
9a186645 DA |
602 | } |
603 | ||
604 | static int compat_drm_getsareactx(struct file *file, unsigned int cmd, | |
605 | unsigned long arg) | |
606 | { | |
ff4135ae | 607 | struct drm_ctx_priv_map __user *request; |
9a186645 DA |
608 | drm_ctx_priv_map32_t __user *argp = (void __user *)arg; |
609 | int err; | |
610 | unsigned int ctx_id; | |
611 | void *handle; | |
612 | ||
613 | if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp)) | |
614 | || __get_user(ctx_id, &argp->ctx_id)) | |
615 | return -EFAULT; | |
616 | ||
617 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 618 | if (!request) |
9a186645 DA |
619 | return -EFAULT; |
620 | if (__put_user(ctx_id, &request->ctx_id)) | |
621 | return -EFAULT; | |
622 | ||
ed8b6704 | 623 | err = drm_ioctl(file, DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request); |
9a186645 DA |
624 | if (err) |
625 | return err; | |
626 | ||
627 | if (__get_user(handle, &request->handle) | |
b5e89ed5 | 628 | || __put_user((unsigned long)handle, &argp->handle)) |
9a186645 DA |
629 | return -EFAULT; |
630 | ||
631 | return 0; | |
632 | } | |
633 | ||
634 | typedef struct drm_ctx_res32 { | |
b5e89ed5 DA |
635 | int count; |
636 | u32 contexts; | |
9a186645 DA |
637 | } drm_ctx_res32_t; |
638 | ||
639 | static int compat_drm_resctx(struct file *file, unsigned int cmd, | |
640 | unsigned long arg) | |
641 | { | |
642 | drm_ctx_res32_t __user *argp = (void __user *)arg; | |
643 | drm_ctx_res32_t res32; | |
ff4135ae | 644 | struct drm_ctx_res __user *res; |
9a186645 DA |
645 | int err; |
646 | ||
647 | if (copy_from_user(&res32, argp, sizeof(res32))) | |
648 | return -EFAULT; | |
649 | ||
650 | res = compat_alloc_user_space(sizeof(*res)); | |
1f96beec | 651 | if (!res) |
9a186645 DA |
652 | return -EFAULT; |
653 | if (__put_user(res32.count, &res->count) | |
ff4135ae | 654 | || __put_user((struct drm_ctx __user *) (unsigned long)res32.contexts, |
9a186645 DA |
655 | &res->contexts)) |
656 | return -EFAULT; | |
657 | ||
ed8b6704 | 658 | err = drm_ioctl(file, DRM_IOCTL_RES_CTX, (unsigned long)res); |
9a186645 DA |
659 | if (err) |
660 | return err; | |
661 | ||
662 | if (__get_user(res32.count, &res->count) | |
663 | || __put_user(res32.count, &argp->count)) | |
664 | return -EFAULT; | |
665 | ||
666 | return 0; | |
667 | } | |
668 | ||
669 | typedef struct drm_dma32 { | |
b5e89ed5 DA |
670 | int context; /**< Context handle */ |
671 | int send_count; /**< Number of buffers to send */ | |
672 | u32 send_indices; /**< List of handles to buffers */ | |
673 | u32 send_sizes; /**< Lengths of data to send */ | |
ff4135ae | 674 | enum drm_dma_flags flags; /**< Flags */ |
b5e89ed5 DA |
675 | int request_count; /**< Number of buffers requested */ |
676 | int request_size; /**< Desired size for buffers */ | |
677 | u32 request_indices; /**< Buffer information */ | |
678 | u32 request_sizes; | |
679 | int granted_count; /**< Number of buffers granted */ | |
9a186645 DA |
680 | } drm_dma32_t; |
681 | ||
682 | static int compat_drm_dma(struct file *file, unsigned int cmd, | |
683 | unsigned long arg) | |
684 | { | |
685 | drm_dma32_t d32; | |
b5e89ed5 | 686 | drm_dma32_t __user *argp = (void __user *)arg; |
ff4135ae | 687 | struct drm_dma __user *d; |
9a186645 DA |
688 | int err; |
689 | ||
690 | if (copy_from_user(&d32, argp, sizeof(d32))) | |
691 | return -EFAULT; | |
692 | ||
693 | d = compat_alloc_user_space(sizeof(*d)); | |
1f96beec | 694 | if (!d) |
9a186645 DA |
695 | return -EFAULT; |
696 | ||
697 | if (__put_user(d32.context, &d->context) | |
698 | || __put_user(d32.send_count, &d->send_count) | |
b5e89ed5 | 699 | || __put_user((int __user *)(unsigned long)d32.send_indices, |
9a186645 | 700 | &d->send_indices) |
b5e89ed5 | 701 | || __put_user((int __user *)(unsigned long)d32.send_sizes, |
9a186645 DA |
702 | &d->send_sizes) |
703 | || __put_user(d32.flags, &d->flags) | |
704 | || __put_user(d32.request_count, &d->request_count) | |
b5e89ed5 | 705 | || __put_user((int __user *)(unsigned long)d32.request_indices, |
9a186645 | 706 | &d->request_indices) |
b5e89ed5 | 707 | || __put_user((int __user *)(unsigned long)d32.request_sizes, |
9a186645 DA |
708 | &d->request_sizes)) |
709 | return -EFAULT; | |
710 | ||
ed8b6704 | 711 | err = drm_ioctl(file, DRM_IOCTL_DMA, (unsigned long)d); |
9a186645 DA |
712 | if (err) |
713 | return err; | |
714 | ||
715 | if (__get_user(d32.request_size, &d->request_size) | |
716 | || __get_user(d32.granted_count, &d->granted_count) | |
717 | || __put_user(d32.request_size, &argp->request_size) | |
718 | || __put_user(d32.granted_count, &argp->granted_count)) | |
719 | return -EFAULT; | |
720 | ||
721 | return 0; | |
722 | } | |
723 | ||
a7fb8a23 | 724 | #if IS_ENABLED(CONFIG_AGP) |
9a186645 DA |
725 | typedef struct drm_agp_mode32 { |
726 | u32 mode; /**< AGP mode */ | |
727 | } drm_agp_mode32_t; | |
728 | ||
729 | static int compat_drm_agp_enable(struct file *file, unsigned int cmd, | |
730 | unsigned long arg) | |
731 | { | |
732 | drm_agp_mode32_t __user *argp = (void __user *)arg; | |
733 | drm_agp_mode32_t m32; | |
ff4135ae | 734 | struct drm_agp_mode __user *mode; |
9a186645 DA |
735 | |
736 | if (get_user(m32.mode, &argp->mode)) | |
737 | return -EFAULT; | |
738 | ||
739 | mode = compat_alloc_user_space(sizeof(*mode)); | |
740 | if (put_user(m32.mode, &mode->mode)) | |
741 | return -EFAULT; | |
742 | ||
ed8b6704 | 743 | return drm_ioctl(file, DRM_IOCTL_AGP_ENABLE, (unsigned long)mode); |
9a186645 DA |
744 | } |
745 | ||
746 | typedef struct drm_agp_info32 { | |
b5e89ed5 DA |
747 | int agp_version_major; |
748 | int agp_version_minor; | |
749 | u32 mode; | |
750 | u32 aperture_base; /* physical address */ | |
751 | u32 aperture_size; /* bytes */ | |
752 | u32 memory_allowed; /* bytes */ | |
753 | u32 memory_used; | |
754 | ||
755 | /* PCI information */ | |
9a186645 DA |
756 | unsigned short id_vendor; |
757 | unsigned short id_device; | |
758 | } drm_agp_info32_t; | |
759 | ||
760 | static int compat_drm_agp_info(struct file *file, unsigned int cmd, | |
761 | unsigned long arg) | |
762 | { | |
763 | drm_agp_info32_t __user *argp = (void __user *)arg; | |
764 | drm_agp_info32_t i32; | |
ff4135ae | 765 | struct drm_agp_info __user *info; |
9a186645 DA |
766 | int err; |
767 | ||
768 | info = compat_alloc_user_space(sizeof(*info)); | |
1f96beec | 769 | if (!info) |
9a186645 DA |
770 | return -EFAULT; |
771 | ||
ed8b6704 | 772 | err = drm_ioctl(file, DRM_IOCTL_AGP_INFO, (unsigned long)info); |
9a186645 DA |
773 | if (err) |
774 | return err; | |
775 | ||
776 | if (__get_user(i32.agp_version_major, &info->agp_version_major) | |
777 | || __get_user(i32.agp_version_minor, &info->agp_version_minor) | |
778 | || __get_user(i32.mode, &info->mode) | |
779 | || __get_user(i32.aperture_base, &info->aperture_base) | |
780 | || __get_user(i32.aperture_size, &info->aperture_size) | |
781 | || __get_user(i32.memory_allowed, &info->memory_allowed) | |
782 | || __get_user(i32.memory_used, &info->memory_used) | |
783 | || __get_user(i32.id_vendor, &info->id_vendor) | |
784 | || __get_user(i32.id_device, &info->id_device)) | |
785 | return -EFAULT; | |
786 | ||
787 | if (copy_to_user(argp, &i32, sizeof(i32))) | |
788 | return -EFAULT; | |
789 | ||
790 | return 0; | |
791 | } | |
792 | ||
793 | typedef struct drm_agp_buffer32 { | |
794 | u32 size; /**< In bytes -- will round to page boundary */ | |
795 | u32 handle; /**< Used for binding / unbinding */ | |
796 | u32 type; /**< Type of memory to allocate */ | |
b5e89ed5 | 797 | u32 physical; /**< Physical used by i810 */ |
9a186645 DA |
798 | } drm_agp_buffer32_t; |
799 | ||
800 | static int compat_drm_agp_alloc(struct file *file, unsigned int cmd, | |
801 | unsigned long arg) | |
802 | { | |
803 | drm_agp_buffer32_t __user *argp = (void __user *)arg; | |
804 | drm_agp_buffer32_t req32; | |
ff4135ae | 805 | struct drm_agp_buffer __user *request; |
9a186645 DA |
806 | int err; |
807 | ||
808 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
809 | return -EFAULT; | |
810 | ||
811 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 812 | if (!request |
9a186645 DA |
813 | || __put_user(req32.size, &request->size) |
814 | || __put_user(req32.type, &request->type)) | |
815 | return -EFAULT; | |
816 | ||
ed8b6704 | 817 | err = drm_ioctl(file, DRM_IOCTL_AGP_ALLOC, (unsigned long)request); |
9a186645 DA |
818 | if (err) |
819 | return err; | |
820 | ||
821 | if (__get_user(req32.handle, &request->handle) | |
822 | || __get_user(req32.physical, &request->physical) | |
823 | || copy_to_user(argp, &req32, sizeof(req32))) { | |
ed8b6704 | 824 | drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request); |
9a186645 DA |
825 | return -EFAULT; |
826 | } | |
827 | ||
828 | return 0; | |
829 | } | |
830 | ||
831 | static int compat_drm_agp_free(struct file *file, unsigned int cmd, | |
832 | unsigned long arg) | |
833 | { | |
834 | drm_agp_buffer32_t __user *argp = (void __user *)arg; | |
ff4135ae | 835 | struct drm_agp_buffer __user *request; |
9a186645 DA |
836 | u32 handle; |
837 | ||
838 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 839 | if (!request |
9a186645 DA |
840 | || get_user(handle, &argp->handle) |
841 | || __put_user(handle, &request->handle)) | |
842 | return -EFAULT; | |
843 | ||
ed8b6704 | 844 | return drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request); |
9a186645 DA |
845 | } |
846 | ||
847 | typedef struct drm_agp_binding32 { | |
848 | u32 handle; /**< From drm_agp_buffer */ | |
849 | u32 offset; /**< In bytes -- will round to page boundary */ | |
850 | } drm_agp_binding32_t; | |
851 | ||
852 | static int compat_drm_agp_bind(struct file *file, unsigned int cmd, | |
853 | unsigned long arg) | |
854 | { | |
855 | drm_agp_binding32_t __user *argp = (void __user *)arg; | |
856 | drm_agp_binding32_t req32; | |
ff4135ae | 857 | struct drm_agp_binding __user *request; |
9a186645 DA |
858 | |
859 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
860 | return -EFAULT; | |
861 | ||
862 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 863 | if (!request |
9a186645 DA |
864 | || __put_user(req32.handle, &request->handle) |
865 | || __put_user(req32.offset, &request->offset)) | |
866 | return -EFAULT; | |
867 | ||
ed8b6704 | 868 | return drm_ioctl(file, DRM_IOCTL_AGP_BIND, (unsigned long)request); |
9a186645 DA |
869 | } |
870 | ||
871 | static int compat_drm_agp_unbind(struct file *file, unsigned int cmd, | |
872 | unsigned long arg) | |
873 | { | |
874 | drm_agp_binding32_t __user *argp = (void __user *)arg; | |
ff4135ae | 875 | struct drm_agp_binding __user *request; |
9a186645 DA |
876 | u32 handle; |
877 | ||
878 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 879 | if (!request |
9a186645 DA |
880 | || get_user(handle, &argp->handle) |
881 | || __put_user(handle, &request->handle)) | |
882 | return -EFAULT; | |
883 | ||
ed8b6704 | 884 | return drm_ioctl(file, DRM_IOCTL_AGP_UNBIND, (unsigned long)request); |
9a186645 | 885 | } |
a7fb8a23 | 886 | #endif /* CONFIG_AGP */ |
9a186645 DA |
887 | |
888 | typedef struct drm_scatter_gather32 { | |
889 | u32 size; /**< In bytes -- will round to page boundary */ | |
890 | u32 handle; /**< Used for mapping / unmapping */ | |
891 | } drm_scatter_gather32_t; | |
892 | ||
893 | static int compat_drm_sg_alloc(struct file *file, unsigned int cmd, | |
894 | unsigned long arg) | |
895 | { | |
896 | drm_scatter_gather32_t __user *argp = (void __user *)arg; | |
ff4135ae | 897 | struct drm_scatter_gather __user *request; |
9a186645 DA |
898 | int err; |
899 | unsigned long x; | |
900 | ||
901 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 902 | if (!request || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)) |
9a186645 DA |
903 | || __get_user(x, &argp->size) |
904 | || __put_user(x, &request->size)) | |
905 | return -EFAULT; | |
906 | ||
ed8b6704 | 907 | err = drm_ioctl(file, DRM_IOCTL_SG_ALLOC, (unsigned long)request); |
9a186645 DA |
908 | if (err) |
909 | return err; | |
910 | ||
911 | /* XXX not sure about the handle conversion here... */ | |
912 | if (__get_user(x, &request->handle) | |
913 | || __put_user(x >> PAGE_SHIFT, &argp->handle)) | |
914 | return -EFAULT; | |
915 | ||
916 | return 0; | |
917 | } | |
918 | ||
919 | static int compat_drm_sg_free(struct file *file, unsigned int cmd, | |
920 | unsigned long arg) | |
921 | { | |
922 | drm_scatter_gather32_t __user *argp = (void __user *)arg; | |
ff4135ae | 923 | struct drm_scatter_gather __user *request; |
9a186645 DA |
924 | unsigned long x; |
925 | ||
926 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 927 | if (!request || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)) |
9a186645 DA |
928 | || __get_user(x, &argp->handle) |
929 | || __put_user(x << PAGE_SHIFT, &request->handle)) | |
930 | return -EFAULT; | |
931 | ||
ed8b6704 | 932 | return drm_ioctl(file, DRM_IOCTL_SG_FREE, (unsigned long)request); |
9a186645 DA |
933 | } |
934 | ||
09e40d65 | 935 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
49568873 EA |
936 | typedef struct drm_update_draw32 { |
937 | drm_drawable_t handle; | |
938 | unsigned int type; | |
939 | unsigned int num; | |
940 | /* 64-bit version has a 32-bit pad here */ | |
941 | u64 data; /**< Pointer */ | |
942 | } __attribute__((packed)) drm_update_draw32_t; | |
943 | ||
944 | static int compat_drm_update_draw(struct file *file, unsigned int cmd, | |
945 | unsigned long arg) | |
946 | { | |
947 | drm_update_draw32_t update32; | |
948 | struct drm_update_draw __user *request; | |
949 | int err; | |
950 | ||
951 | if (copy_from_user(&update32, (void __user *)arg, sizeof(update32))) | |
952 | return -EFAULT; | |
953 | ||
954 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 955 | if (!request || |
49568873 EA |
956 | __put_user(update32.handle, &request->handle) || |
957 | __put_user(update32.type, &request->type) || | |
958 | __put_user(update32.num, &request->num) || | |
959 | __put_user(update32.data, &request->data)) | |
960 | return -EFAULT; | |
961 | ||
ed8b6704 | 962 | err = drm_ioctl(file, DRM_IOCTL_UPDATE_DRAW, (unsigned long)request); |
49568873 EA |
963 | return err; |
964 | } | |
09e40d65 | 965 | #endif |
49568873 | 966 | |
9a186645 | 967 | struct drm_wait_vblank_request32 { |
ff4135ae | 968 | enum drm_vblank_seq_type type; |
9a186645 DA |
969 | unsigned int sequence; |
970 | u32 signal; | |
971 | }; | |
972 | ||
973 | struct drm_wait_vblank_reply32 { | |
ff4135ae | 974 | enum drm_vblank_seq_type type; |
9a186645 DA |
975 | unsigned int sequence; |
976 | s32 tval_sec; | |
977 | s32 tval_usec; | |
978 | }; | |
979 | ||
980 | typedef union drm_wait_vblank32 { | |
981 | struct drm_wait_vblank_request32 request; | |
982 | struct drm_wait_vblank_reply32 reply; | |
983 | } drm_wait_vblank32_t; | |
984 | ||
985 | static int compat_drm_wait_vblank(struct file *file, unsigned int cmd, | |
986 | unsigned long arg) | |
987 | { | |
988 | drm_wait_vblank32_t __user *argp = (void __user *)arg; | |
989 | drm_wait_vblank32_t req32; | |
ff4135ae | 990 | union drm_wait_vblank __user *request; |
9a186645 DA |
991 | int err; |
992 | ||
993 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
994 | return -EFAULT; | |
995 | ||
996 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 997 | if (!request |
9a186645 DA |
998 | || __put_user(req32.request.type, &request->request.type) |
999 | || __put_user(req32.request.sequence, &request->request.sequence) | |
1000 | || __put_user(req32.request.signal, &request->request.signal)) | |
1001 | return -EFAULT; | |
1002 | ||
ed8b6704 | 1003 | err = drm_ioctl(file, DRM_IOCTL_WAIT_VBLANK, (unsigned long)request); |
9a186645 DA |
1004 | if (err) |
1005 | return err; | |
1006 | ||
1007 | if (__get_user(req32.reply.type, &request->reply.type) | |
1008 | || __get_user(req32.reply.sequence, &request->reply.sequence) | |
1009 | || __get_user(req32.reply.tval_sec, &request->reply.tval_sec) | |
1010 | || __get_user(req32.reply.tval_usec, &request->reply.tval_usec)) | |
1011 | return -EFAULT; | |
1012 | ||
1013 | if (copy_to_user(argp, &req32, sizeof(req32))) | |
1014 | return -EFAULT; | |
1015 | ||
1016 | return 0; | |
1017 | } | |
1018 | ||
c631d5f9 TU |
1019 | typedef struct drm_mode_fb_cmd232 { |
1020 | u32 fb_id; | |
1021 | u32 width; | |
1022 | u32 height; | |
1023 | u32 pixel_format; | |
1024 | u32 flags; | |
1025 | u32 handles[4]; | |
1026 | u32 pitches[4]; | |
1027 | u32 offsets[4]; | |
1028 | u64 modifier[4]; | |
1029 | } __attribute__((packed)) drm_mode_fb_cmd232_t; | |
1030 | ||
1031 | static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd, | |
1032 | unsigned long arg) | |
1033 | { | |
1034 | struct drm_mode_fb_cmd232 __user *argp = (void __user *)arg; | |
1035 | struct drm_mode_fb_cmd232 req32; | |
1036 | struct drm_mode_fb_cmd2 __user *req64; | |
1037 | int i; | |
1038 | int err; | |
1039 | ||
1040 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
1041 | return -EFAULT; | |
1042 | ||
1043 | req64 = compat_alloc_user_space(sizeof(*req64)); | |
1044 | ||
1045 | if (!access_ok(VERIFY_WRITE, req64, sizeof(*req64)) | |
1046 | || __put_user(req32.width, &req64->width) | |
1047 | || __put_user(req32.height, &req64->height) | |
1048 | || __put_user(req32.pixel_format, &req64->pixel_format) | |
1049 | || __put_user(req32.flags, &req64->flags)) | |
1050 | return -EFAULT; | |
1051 | ||
1052 | for (i = 0; i < 4; i++) { | |
1053 | if (__put_user(req32.handles[i], &req64->handles[i])) | |
1054 | return -EFAULT; | |
1055 | if (__put_user(req32.pitches[i], &req64->pitches[i])) | |
1056 | return -EFAULT; | |
1057 | if (__put_user(req32.offsets[i], &req64->offsets[i])) | |
1058 | return -EFAULT; | |
1059 | if (__put_user(req32.modifier[i], &req64->modifier[i])) | |
1060 | return -EFAULT; | |
1061 | } | |
1062 | ||
1063 | err = drm_ioctl(file, DRM_IOCTL_MODE_ADDFB2, (unsigned long)req64); | |
1064 | if (err) | |
1065 | return err; | |
1066 | ||
1067 | if (__get_user(req32.fb_id, &req64->fb_id)) | |
1068 | return -EFAULT; | |
1069 | ||
1070 | if (copy_to_user(argp, &req32, sizeof(req32))) | |
1071 | return -EFAULT; | |
1072 | ||
1073 | return 0; | |
1074 | } | |
1075 | ||
43fc884e | 1076 | static drm_ioctl_compat_t *drm_compat_ioctls[] = { |
9a186645 DA |
1077 | [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version, |
1078 | [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique, | |
1079 | [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap, | |
1080 | [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)] = compat_drm_getclient, | |
1081 | [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)] = compat_drm_getstats, | |
1082 | [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE32)] = compat_drm_setunique, | |
1083 | [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)] = compat_drm_addmap, | |
1084 | [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS32)] = compat_drm_addbufs, | |
1085 | [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)] = compat_drm_markbufs, | |
1086 | [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS32)] = compat_drm_infobufs, | |
1087 | [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)] = compat_drm_mapbufs, | |
1088 | [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)] = compat_drm_freebufs, | |
1089 | [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)] = compat_drm_rmmap, | |
1090 | [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX32)] = compat_drm_setsareactx, | |
1091 | [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)] = compat_drm_getsareactx, | |
1092 | [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)] = compat_drm_resctx, | |
1093 | [DRM_IOCTL_NR(DRM_IOCTL_DMA32)] = compat_drm_dma, | |
a7fb8a23 | 1094 | #if IS_ENABLED(CONFIG_AGP) |
9a186645 DA |
1095 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)] = compat_drm_agp_enable, |
1096 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)] = compat_drm_agp_info, | |
1097 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)] = compat_drm_agp_alloc, | |
1098 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)] = compat_drm_agp_free, | |
1099 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)] = compat_drm_agp_bind, | |
1100 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)] = compat_drm_agp_unbind, | |
1101 | #endif | |
1102 | [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)] = compat_drm_sg_alloc, | |
1103 | [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)] = compat_drm_sg_free, | |
09e40d65 | 1104 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
49568873 | 1105 | [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW32)] = compat_drm_update_draw, |
09e40d65 | 1106 | #endif |
9a186645 | 1107 | [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank, |
c631d5f9 | 1108 | [DRM_IOCTL_NR(DRM_IOCTL_MODE_ADDFB232)] = compat_drm_mode_addfb2, |
9a186645 DA |
1109 | }; |
1110 | ||
1111 | /** | |
1112 | * Called whenever a 32-bit process running under a 64-bit kernel | |
1113 | * performs an ioctl on /dev/drm. | |
1114 | * | |
6c340eac | 1115 | * \param file_priv DRM file private. |
9a186645 DA |
1116 | * \param cmd command. |
1117 | * \param arg user argument. | |
1118 | * \return zero on success or negative number on failure. | |
1119 | */ | |
1120 | long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) | |
1121 | { | |
1122 | unsigned int nr = DRM_IOCTL_NR(cmd); | |
1123 | drm_ioctl_compat_t *fn; | |
1124 | int ret; | |
1125 | ||
7ffa05e0 IR |
1126 | /* Assume that ioctls without an explicit compat routine will just |
1127 | * work. This may not always be a good assumption, but it's better | |
1128 | * than always failing. | |
1129 | */ | |
3d77461e | 1130 | if (nr >= ARRAY_SIZE(drm_compat_ioctls)) |
ed8b6704 | 1131 | return drm_ioctl(filp, cmd, arg); |
9a186645 DA |
1132 | |
1133 | fn = drm_compat_ioctls[nr]; | |
1134 | ||
9a186645 | 1135 | if (fn != NULL) |
b5e89ed5 | 1136 | ret = (*fn) (filp, cmd, arg); |
9a186645 | 1137 | else |
ed8b6704 | 1138 | ret = drm_ioctl(filp, cmd, arg); |
9a186645 DA |
1139 | |
1140 | return ret; | |
1141 | } | |
b5e89ed5 | 1142 | |
9a186645 | 1143 | EXPORT_SYMBOL(drm_compat_ioctl); |