Commit | Line | Data |
---|---|---|
2640981f | 1 | /* |
9a186645 DA |
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 | 34 | #include <drm/drmP.h> |
9a186645 DA |
35 | |
36 | #define DRM_IOCTL_VERSION32 DRM_IOWR(0x00, drm_version32_t) | |
37 | #define DRM_IOCTL_GET_UNIQUE32 DRM_IOWR(0x01, drm_unique32_t) | |
38 | #define DRM_IOCTL_GET_MAP32 DRM_IOWR(0x04, drm_map32_t) | |
39 | #define DRM_IOCTL_GET_CLIENT32 DRM_IOWR(0x05, drm_client32_t) | |
40 | #define DRM_IOCTL_GET_STATS32 DRM_IOR( 0x06, drm_stats32_t) | |
41 | ||
42 | #define DRM_IOCTL_SET_UNIQUE32 DRM_IOW( 0x10, drm_unique32_t) | |
43 | #define DRM_IOCTL_ADD_MAP32 DRM_IOWR(0x15, drm_map32_t) | |
44 | #define DRM_IOCTL_ADD_BUFS32 DRM_IOWR(0x16, drm_buf_desc32_t) | |
45 | #define DRM_IOCTL_MARK_BUFS32 DRM_IOW( 0x17, drm_buf_desc32_t) | |
46 | #define DRM_IOCTL_INFO_BUFS32 DRM_IOWR(0x18, drm_buf_info32_t) | |
47 | #define DRM_IOCTL_MAP_BUFS32 DRM_IOWR(0x19, drm_buf_map32_t) | |
48 | #define DRM_IOCTL_FREE_BUFS32 DRM_IOW( 0x1a, drm_buf_free32_t) | |
49 | ||
50 | #define DRM_IOCTL_RM_MAP32 DRM_IOW( 0x1b, drm_map32_t) | |
51 | ||
52 | #define DRM_IOCTL_SET_SAREA_CTX32 DRM_IOW( 0x1c, drm_ctx_priv_map32_t) | |
53 | #define DRM_IOCTL_GET_SAREA_CTX32 DRM_IOWR(0x1d, drm_ctx_priv_map32_t) | |
54 | ||
55 | #define DRM_IOCTL_RES_CTX32 DRM_IOWR(0x26, drm_ctx_res32_t) | |
56 | #define DRM_IOCTL_DMA32 DRM_IOWR(0x29, drm_dma32_t) | |
57 | ||
58 | #define DRM_IOCTL_AGP_ENABLE32 DRM_IOW( 0x32, drm_agp_mode32_t) | |
59 | #define DRM_IOCTL_AGP_INFO32 DRM_IOR( 0x33, drm_agp_info32_t) | |
60 | #define DRM_IOCTL_AGP_ALLOC32 DRM_IOWR(0x34, drm_agp_buffer32_t) | |
61 | #define DRM_IOCTL_AGP_FREE32 DRM_IOW( 0x35, drm_agp_buffer32_t) | |
62 | #define DRM_IOCTL_AGP_BIND32 DRM_IOW( 0x36, drm_agp_binding32_t) | |
63 | #define DRM_IOCTL_AGP_UNBIND32 DRM_IOW( 0x37, drm_agp_binding32_t) | |
64 | ||
65 | #define DRM_IOCTL_SG_ALLOC32 DRM_IOW( 0x38, drm_scatter_gather32_t) | |
66 | #define DRM_IOCTL_SG_FREE32 DRM_IOW( 0x39, drm_scatter_gather32_t) | |
67 | ||
49568873 EA |
68 | #define DRM_IOCTL_UPDATE_DRAW32 DRM_IOW( 0x3f, drm_update_draw32_t) |
69 | ||
9a186645 DA |
70 | #define DRM_IOCTL_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_t) |
71 | ||
c631d5f9 TU |
72 | #define DRM_IOCTL_MODE_ADDFB232 DRM_IOWR(0xb8, drm_mode_fb_cmd232_t) |
73 | ||
9a186645 | 74 | typedef struct drm_version_32 { |
2640981f DV |
75 | int version_major; /* Major version */ |
76 | int version_minor; /* Minor version */ | |
77 | int version_patchlevel; /* Patch level */ | |
78 | u32 name_len; /* Length of name buffer */ | |
79 | u32 name; /* Name of driver */ | |
80 | u32 date_len; /* Length of date buffer */ | |
81 | u32 date; /* User-space buffer to hold date */ | |
82 | u32 desc_len; /* Length of desc buffer */ | |
83 | u32 desc; /* User-space buffer to hold desc */ | |
9a186645 DA |
84 | } drm_version32_t; |
85 | ||
86 | static int compat_drm_version(struct file *file, unsigned int cmd, | |
87 | unsigned long arg) | |
88 | { | |
89 | drm_version32_t v32; | |
ff4135ae | 90 | struct drm_version __user *version; |
9a186645 DA |
91 | int err; |
92 | ||
b5e89ed5 | 93 | if (copy_from_user(&v32, (void __user *)arg, sizeof(v32))) |
9a186645 DA |
94 | return -EFAULT; |
95 | ||
96 | version = compat_alloc_user_space(sizeof(*version)); | |
1f96beec | 97 | if (!version) |
9a186645 DA |
98 | return -EFAULT; |
99 | if (__put_user(v32.name_len, &version->name_len) | |
100 | || __put_user((void __user *)(unsigned long)v32.name, | |
101 | &version->name) | |
102 | || __put_user(v32.date_len, &version->date_len) | |
103 | || __put_user((void __user *)(unsigned long)v32.date, | |
104 | &version->date) | |
105 | || __put_user(v32.desc_len, &version->desc_len) | |
106 | || __put_user((void __user *)(unsigned long)v32.desc, | |
107 | &version->desc)) | |
108 | return -EFAULT; | |
109 | ||
ed8b6704 | 110 | err = drm_ioctl(file, |
b5e89ed5 | 111 | DRM_IOCTL_VERSION, (unsigned long)version); |
9a186645 DA |
112 | if (err) |
113 | return err; | |
114 | ||
115 | if (__get_user(v32.version_major, &version->version_major) | |
116 | || __get_user(v32.version_minor, &version->version_minor) | |
117 | || __get_user(v32.version_patchlevel, &version->version_patchlevel) | |
118 | || __get_user(v32.name_len, &version->name_len) | |
119 | || __get_user(v32.date_len, &version->date_len) | |
120 | || __get_user(v32.desc_len, &version->desc_len)) | |
121 | return -EFAULT; | |
122 | ||
b5e89ed5 | 123 | if (copy_to_user((void __user *)arg, &v32, sizeof(v32))) |
9a186645 DA |
124 | return -EFAULT; |
125 | return 0; | |
126 | } | |
127 | ||
128 | typedef struct drm_unique32 { | |
2640981f DV |
129 | u32 unique_len; /* Length of unique */ |
130 | u32 unique; /* Unique name for driver instantiation */ | |
9a186645 DA |
131 | } drm_unique32_t; |
132 | ||
133 | static int compat_drm_getunique(struct file *file, unsigned int cmd, | |
134 | unsigned long arg) | |
135 | { | |
136 | drm_unique32_t uq32; | |
ff4135ae | 137 | struct drm_unique __user *u; |
9a186645 DA |
138 | int err; |
139 | ||
b5e89ed5 | 140 | if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32))) |
9a186645 DA |
141 | return -EFAULT; |
142 | ||
143 | u = compat_alloc_user_space(sizeof(*u)); | |
1f96beec | 144 | if (!u) |
9a186645 DA |
145 | return -EFAULT; |
146 | if (__put_user(uq32.unique_len, &u->unique_len) | |
b5e89ed5 | 147 | || __put_user((void __user *)(unsigned long)uq32.unique, |
9a186645 DA |
148 | &u->unique)) |
149 | return -EFAULT; | |
150 | ||
ed8b6704 | 151 | err = drm_ioctl(file, DRM_IOCTL_GET_UNIQUE, (unsigned long)u); |
9a186645 DA |
152 | if (err) |
153 | return err; | |
154 | ||
155 | if (__get_user(uq32.unique_len, &u->unique_len)) | |
156 | return -EFAULT; | |
b5e89ed5 | 157 | if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32))) |
9a186645 DA |
158 | return -EFAULT; |
159 | return 0; | |
160 | } | |
161 | ||
162 | static int compat_drm_setunique(struct file *file, unsigned int cmd, | |
163 | unsigned long arg) | |
164 | { | |
165 | drm_unique32_t uq32; | |
ff4135ae | 166 | struct drm_unique __user *u; |
9a186645 | 167 | |
b5e89ed5 | 168 | if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32))) |
9a186645 DA |
169 | return -EFAULT; |
170 | ||
171 | u = compat_alloc_user_space(sizeof(*u)); | |
1f96beec | 172 | if (!u) |
9a186645 DA |
173 | return -EFAULT; |
174 | if (__put_user(uq32.unique_len, &u->unique_len) | |
b5e89ed5 | 175 | || __put_user((void __user *)(unsigned long)uq32.unique, |
9a186645 DA |
176 | &u->unique)) |
177 | return -EFAULT; | |
178 | ||
ed8b6704 | 179 | return drm_ioctl(file, DRM_IOCTL_SET_UNIQUE, (unsigned long)u); |
9a186645 DA |
180 | } |
181 | ||
182 | typedef struct drm_map32 { | |
2640981f DV |
183 | u32 offset; /* Requested physical address (0 for SAREA) */ |
184 | u32 size; /* Requested physical size (bytes) */ | |
185 | enum drm_map_type type; /* Type of memory to map */ | |
186 | enum drm_map_flags flags; /* Flags */ | |
187 | u32 handle; /* User-space: "Handle" to pass to mmap() */ | |
188 | int mtrr; /* MTRR slot used */ | |
9a186645 DA |
189 | } drm_map32_t; |
190 | ||
191 | static int compat_drm_getmap(struct file *file, unsigned int cmd, | |
192 | unsigned long arg) | |
193 | { | |
194 | drm_map32_t __user *argp = (void __user *)arg; | |
195 | drm_map32_t m32; | |
ff4135ae | 196 | struct drm_map __user *map; |
9a186645 DA |
197 | int idx, err; |
198 | void *handle; | |
199 | ||
200 | if (get_user(idx, &argp->offset)) | |
201 | return -EFAULT; | |
202 | ||
203 | map = compat_alloc_user_space(sizeof(*map)); | |
1f96beec | 204 | if (!map) |
9a186645 DA |
205 | return -EFAULT; |
206 | if (__put_user(idx, &map->offset)) | |
207 | return -EFAULT; | |
208 | ||
ed8b6704 | 209 | err = drm_ioctl(file, DRM_IOCTL_GET_MAP, (unsigned long)map); |
9a186645 DA |
210 | if (err) |
211 | return err; | |
212 | ||
213 | if (__get_user(m32.offset, &map->offset) | |
214 | || __get_user(m32.size, &map->size) | |
215 | || __get_user(m32.type, &map->type) | |
216 | || __get_user(m32.flags, &map->flags) | |
217 | || __get_user(handle, &map->handle) | |
218 | || __get_user(m32.mtrr, &map->mtrr)) | |
219 | return -EFAULT; | |
220 | ||
b5e89ed5 | 221 | m32.handle = (unsigned long)handle; |
9a186645 DA |
222 | if (copy_to_user(argp, &m32, sizeof(m32))) |
223 | return -EFAULT; | |
224 | return 0; | |
225 | ||
226 | } | |
227 | ||
228 | static int compat_drm_addmap(struct file *file, unsigned int cmd, | |
229 | unsigned long arg) | |
230 | { | |
231 | drm_map32_t __user *argp = (void __user *)arg; | |
232 | drm_map32_t m32; | |
ff4135ae | 233 | struct drm_map __user *map; |
9a186645 DA |
234 | int err; |
235 | void *handle; | |
236 | ||
237 | if (copy_from_user(&m32, argp, sizeof(m32))) | |
238 | return -EFAULT; | |
239 | ||
240 | map = compat_alloc_user_space(sizeof(*map)); | |
1f96beec | 241 | if (!map) |
9a186645 DA |
242 | return -EFAULT; |
243 | if (__put_user(m32.offset, &map->offset) | |
244 | || __put_user(m32.size, &map->size) | |
245 | || __put_user(m32.type, &map->type) | |
246 | || __put_user(m32.flags, &map->flags)) | |
247 | return -EFAULT; | |
248 | ||
ed8b6704 | 249 | err = drm_ioctl(file, DRM_IOCTL_ADD_MAP, (unsigned long)map); |
9a186645 DA |
250 | if (err) |
251 | return err; | |
252 | ||
253 | if (__get_user(m32.offset, &map->offset) | |
254 | || __get_user(m32.mtrr, &map->mtrr) | |
255 | || __get_user(handle, &map->handle)) | |
256 | return -EFAULT; | |
257 | ||
b5e89ed5 | 258 | m32.handle = (unsigned long)handle; |
cafe8d84 | 259 | if (m32.handle != (unsigned long)handle) |
499447db | 260 | pr_err_ratelimited("compat_drm_addmap truncated handle %p for type %d offset %x\n", |
cafe8d84 | 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 | ||
269 | static 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)); | |
1f96beec | 280 | if (!map) |
9a186645 | 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 | ||
288 | typedef struct drm_client32 { | |
2640981f DV |
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 | ||
297 | static 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)); | |
1f96beec | 309 | if (!client) |
9a186645 DA |
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 | ||
08bc3d4e JL |
318 | if (__get_user(c32.idx, &client->idx) |
319 | || __get_user(c32.auth, &client->auth) | |
9a186645 DA |
320 | || __get_user(c32.pid, &client->pid) |
321 | || __get_user(c32.uid, &client->uid) | |
322 | || __get_user(c32.magic, &client->magic) | |
323 | || __get_user(c32.iocs, &client->iocs)) | |
324 | return -EFAULT; | |
325 | ||
326 | if (copy_to_user(argp, &c32, sizeof(c32))) | |
327 | return -EFAULT; | |
328 | return 0; | |
329 | } | |
330 | ||
331 | typedef struct drm_stats32 { | |
332 | u32 count; | |
333 | struct { | |
334 | u32 value; | |
ff4135ae | 335 | enum drm_stat_type type; |
9a186645 DA |
336 | } data[15]; |
337 | } drm_stats32_t; | |
338 | ||
339 | static int compat_drm_getstats(struct file *file, unsigned int cmd, | |
340 | unsigned long arg) | |
341 | { | |
342 | drm_stats32_t s32; | |
343 | drm_stats32_t __user *argp = (void __user *)arg; | |
ff4135ae | 344 | struct drm_stats __user *stats; |
9a186645 DA |
345 | int i, err; |
346 | ||
ec913f31 | 347 | memset(&s32, 0, sizeof(drm_stats32_t)); |
9a186645 | 348 | stats = compat_alloc_user_space(sizeof(*stats)); |
1f96beec | 349 | if (!stats) |
9a186645 DA |
350 | return -EFAULT; |
351 | ||
ed8b6704 | 352 | err = drm_ioctl(file, DRM_IOCTL_GET_STATS, (unsigned long)stats); |
9a186645 DA |
353 | if (err) |
354 | return err; | |
355 | ||
356 | if (__get_user(s32.count, &stats->count)) | |
357 | return -EFAULT; | |
358 | for (i = 0; i < 15; ++i) | |
359 | if (__get_user(s32.data[i].value, &stats->data[i].value) | |
360 | || __get_user(s32.data[i].type, &stats->data[i].type)) | |
361 | return -EFAULT; | |
362 | ||
363 | if (copy_to_user(argp, &s32, sizeof(s32))) | |
364 | return -EFAULT; | |
365 | return 0; | |
366 | } | |
367 | ||
368 | typedef struct drm_buf_desc32 { | |
2640981f DV |
369 | int count; /* Number of buffers of this size */ |
370 | int size; /* Size in bytes */ | |
371 | int low_mark; /* Low water mark */ | |
372 | int high_mark; /* High water mark */ | |
b5e89ed5 | 373 | int flags; |
2640981f | 374 | u32 agp_start; /* Start address in the AGP aperture */ |
9a186645 DA |
375 | } drm_buf_desc32_t; |
376 | ||
377 | static int compat_drm_addbufs(struct file *file, unsigned int cmd, | |
378 | unsigned long arg) | |
379 | { | |
380 | drm_buf_desc32_t __user *argp = (void __user *)arg; | |
ff4135ae | 381 | struct drm_buf_desc __user *buf; |
9a186645 DA |
382 | int err; |
383 | unsigned long agp_start; | |
384 | ||
385 | buf = compat_alloc_user_space(sizeof(*buf)); | |
1f96beec | 386 | if (!buf || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))) |
9a186645 DA |
387 | return -EFAULT; |
388 | ||
389 | if (__copy_in_user(buf, argp, offsetof(drm_buf_desc32_t, agp_start)) | |
390 | || __get_user(agp_start, &argp->agp_start) | |
391 | || __put_user(agp_start, &buf->agp_start)) | |
392 | return -EFAULT; | |
393 | ||
ed8b6704 | 394 | err = drm_ioctl(file, DRM_IOCTL_ADD_BUFS, (unsigned long)buf); |
9a186645 DA |
395 | if (err) |
396 | return err; | |
397 | ||
398 | if (__copy_in_user(argp, buf, offsetof(drm_buf_desc32_t, agp_start)) | |
399 | || __get_user(agp_start, &buf->agp_start) | |
400 | || __put_user(agp_start, &argp->agp_start)) | |
401 | return -EFAULT; | |
402 | ||
403 | return 0; | |
404 | } | |
405 | ||
406 | static int compat_drm_markbufs(struct file *file, unsigned int cmd, | |
407 | unsigned long arg) | |
408 | { | |
409 | drm_buf_desc32_t b32; | |
410 | drm_buf_desc32_t __user *argp = (void __user *)arg; | |
ff4135ae | 411 | struct drm_buf_desc __user *buf; |
9a186645 DA |
412 | |
413 | if (copy_from_user(&b32, argp, sizeof(b32))) | |
414 | return -EFAULT; | |
415 | ||
416 | buf = compat_alloc_user_space(sizeof(*buf)); | |
1f96beec | 417 | if (!buf) |
9a186645 DA |
418 | return -EFAULT; |
419 | ||
420 | if (__put_user(b32.size, &buf->size) | |
421 | || __put_user(b32.low_mark, &buf->low_mark) | |
422 | || __put_user(b32.high_mark, &buf->high_mark)) | |
423 | return -EFAULT; | |
424 | ||
ed8b6704 | 425 | return drm_ioctl(file, DRM_IOCTL_MARK_BUFS, (unsigned long)buf); |
9a186645 DA |
426 | } |
427 | ||
428 | typedef struct drm_buf_info32 { | |
b5e89ed5 DA |
429 | int count; /**< Entries in list */ |
430 | u32 list; | |
9a186645 DA |
431 | } drm_buf_info32_t; |
432 | ||
433 | static int compat_drm_infobufs(struct file *file, unsigned int cmd, | |
434 | unsigned long arg) | |
435 | { | |
436 | drm_buf_info32_t req32; | |
437 | drm_buf_info32_t __user *argp = (void __user *)arg; | |
438 | drm_buf_desc32_t __user *to; | |
ff4135ae DA |
439 | struct drm_buf_info __user *request; |
440 | struct drm_buf_desc __user *list; | |
9a186645 DA |
441 | size_t nbytes; |
442 | int i, err; | |
443 | int count, actual; | |
444 | ||
445 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
446 | return -EFAULT; | |
447 | ||
448 | count = req32.count; | |
b5e89ed5 | 449 | to = (drm_buf_desc32_t __user *) (unsigned long)req32.list; |
9a186645 DA |
450 | if (count < 0) |
451 | count = 0; | |
452 | if (count > 0 | |
453 | && !access_ok(VERIFY_WRITE, to, count * sizeof(drm_buf_desc32_t))) | |
454 | return -EFAULT; | |
455 | ||
ff4135ae | 456 | nbytes = sizeof(*request) + count * sizeof(struct drm_buf_desc); |
9a186645 | 457 | request = compat_alloc_user_space(nbytes); |
1f96beec | 458 | if (!request) |
9a186645 | 459 | return -EFAULT; |
ff4135ae | 460 | list = (struct drm_buf_desc *) (request + 1); |
9a186645 DA |
461 | |
462 | if (__put_user(count, &request->count) | |
463 | || __put_user(list, &request->list)) | |
464 | return -EFAULT; | |
465 | ||
ed8b6704 | 466 | err = drm_ioctl(file, DRM_IOCTL_INFO_BUFS, (unsigned long)request); |
9a186645 DA |
467 | if (err) |
468 | return err; | |
469 | ||
470 | if (__get_user(actual, &request->count)) | |
471 | return -EFAULT; | |
472 | if (count >= actual) | |
473 | for (i = 0; i < actual; ++i) | |
474 | if (__copy_in_user(&to[i], &list[i], | |
ff4135ae | 475 | offsetof(struct drm_buf_desc, flags))) |
9a186645 DA |
476 | return -EFAULT; |
477 | ||
478 | if (__put_user(actual, &argp->count)) | |
479 | return -EFAULT; | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
484 | typedef struct drm_buf_pub32 { | |
b5e89ed5 DA |
485 | int idx; /**< Index into the master buffer list */ |
486 | int total; /**< Buffer size */ | |
487 | int used; /**< Amount of buffer in use (for DMA) */ | |
488 | u32 address; /**< Address of buffer */ | |
9a186645 DA |
489 | } drm_buf_pub32_t; |
490 | ||
491 | typedef struct drm_buf_map32 { | |
b5e89ed5 DA |
492 | int count; /**< Length of the buffer list */ |
493 | u32 virtual; /**< Mmap'd area in user-virtual */ | |
494 | u32 list; /**< Buffer information */ | |
9a186645 DA |
495 | } drm_buf_map32_t; |
496 | ||
497 | static int compat_drm_mapbufs(struct file *file, unsigned int cmd, | |
498 | unsigned long arg) | |
499 | { | |
500 | drm_buf_map32_t __user *argp = (void __user *)arg; | |
501 | drm_buf_map32_t req32; | |
502 | drm_buf_pub32_t __user *list32; | |
ff4135ae DA |
503 | struct drm_buf_map __user *request; |
504 | struct drm_buf_pub __user *list; | |
9a186645 DA |
505 | int i, err; |
506 | int count, actual; | |
507 | size_t nbytes; | |
508 | void __user *addr; | |
509 | ||
510 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
511 | return -EFAULT; | |
512 | count = req32.count; | |
513 | list32 = (void __user *)(unsigned long)req32.list; | |
514 | ||
515 | if (count < 0) | |
516 | return -EINVAL; | |
ff4135ae | 517 | nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub); |
9a186645 | 518 | request = compat_alloc_user_space(nbytes); |
1f96beec | 519 | if (!request) |
9a186645 | 520 | return -EFAULT; |
ff4135ae | 521 | list = (struct drm_buf_pub *) (request + 1); |
9a186645 DA |
522 | |
523 | if (__put_user(count, &request->count) | |
524 | || __put_user(list, &request->list)) | |
525 | return -EFAULT; | |
526 | ||
ed8b6704 | 527 | err = drm_ioctl(file, DRM_IOCTL_MAP_BUFS, (unsigned long)request); |
9a186645 DA |
528 | if (err) |
529 | return err; | |
530 | ||
531 | if (__get_user(actual, &request->count)) | |
532 | return -EFAULT; | |
533 | if (count >= actual) | |
534 | for (i = 0; i < actual; ++i) | |
535 | if (__copy_in_user(&list32[i], &list[i], | |
ff4135ae | 536 | offsetof(struct drm_buf_pub, address)) |
9a186645 | 537 | || __get_user(addr, &list[i].address) |
b5e89ed5 | 538 | || __put_user((unsigned long)addr, |
9a186645 DA |
539 | &list32[i].address)) |
540 | return -EFAULT; | |
541 | ||
542 | if (__put_user(actual, &argp->count) | |
543 | || __get_user(addr, &request->virtual) | |
b5e89ed5 | 544 | || __put_user((unsigned long)addr, &argp->virtual)) |
9a186645 DA |
545 | return -EFAULT; |
546 | ||
547 | return 0; | |
548 | } | |
549 | ||
550 | typedef struct drm_buf_free32 { | |
b5e89ed5 DA |
551 | int count; |
552 | u32 list; | |
9a186645 DA |
553 | } drm_buf_free32_t; |
554 | ||
555 | static int compat_drm_freebufs(struct file *file, unsigned int cmd, | |
556 | unsigned long arg) | |
557 | { | |
558 | drm_buf_free32_t req32; | |
ff4135ae | 559 | struct drm_buf_free __user *request; |
9a186645 DA |
560 | drm_buf_free32_t __user *argp = (void __user *)arg; |
561 | ||
562 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
563 | return -EFAULT; | |
564 | ||
565 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 566 | if (!request) |
9a186645 DA |
567 | return -EFAULT; |
568 | if (__put_user(req32.count, &request->count) | |
b5e89ed5 | 569 | || __put_user((int __user *)(unsigned long)req32.list, |
9a186645 DA |
570 | &request->list)) |
571 | return -EFAULT; | |
572 | ||
ed8b6704 | 573 | return drm_ioctl(file, DRM_IOCTL_FREE_BUFS, (unsigned long)request); |
9a186645 DA |
574 | } |
575 | ||
576 | typedef struct drm_ctx_priv_map32 { | |
b5e89ed5 DA |
577 | unsigned int ctx_id; /**< Context requesting private mapping */ |
578 | u32 handle; /**< Handle of map */ | |
9a186645 DA |
579 | } drm_ctx_priv_map32_t; |
580 | ||
581 | static int compat_drm_setsareactx(struct file *file, unsigned int cmd, | |
582 | unsigned long arg) | |
583 | { | |
584 | drm_ctx_priv_map32_t req32; | |
ff4135ae | 585 | struct drm_ctx_priv_map __user *request; |
9a186645 DA |
586 | drm_ctx_priv_map32_t __user *argp = (void __user *)arg; |
587 | ||
588 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
589 | return -EFAULT; | |
590 | ||
591 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 592 | if (!request) |
9a186645 DA |
593 | return -EFAULT; |
594 | if (__put_user(req32.ctx_id, &request->ctx_id) | |
b5e89ed5 | 595 | || __put_user((void *)(unsigned long)req32.handle, |
9a186645 DA |
596 | &request->handle)) |
597 | return -EFAULT; | |
598 | ||
ed8b6704 | 599 | return drm_ioctl(file, DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request); |
9a186645 DA |
600 | } |
601 | ||
602 | static int compat_drm_getsareactx(struct file *file, unsigned int cmd, | |
603 | unsigned long arg) | |
604 | { | |
ff4135ae | 605 | struct drm_ctx_priv_map __user *request; |
9a186645 DA |
606 | drm_ctx_priv_map32_t __user *argp = (void __user *)arg; |
607 | int err; | |
608 | unsigned int ctx_id; | |
609 | void *handle; | |
610 | ||
611 | if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp)) | |
612 | || __get_user(ctx_id, &argp->ctx_id)) | |
613 | return -EFAULT; | |
614 | ||
615 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 616 | if (!request) |
9a186645 DA |
617 | return -EFAULT; |
618 | if (__put_user(ctx_id, &request->ctx_id)) | |
619 | return -EFAULT; | |
620 | ||
ed8b6704 | 621 | err = drm_ioctl(file, DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request); |
9a186645 DA |
622 | if (err) |
623 | return err; | |
624 | ||
625 | if (__get_user(handle, &request->handle) | |
b5e89ed5 | 626 | || __put_user((unsigned long)handle, &argp->handle)) |
9a186645 DA |
627 | return -EFAULT; |
628 | ||
629 | return 0; | |
630 | } | |
631 | ||
632 | typedef struct drm_ctx_res32 { | |
b5e89ed5 DA |
633 | int count; |
634 | u32 contexts; | |
9a186645 DA |
635 | } drm_ctx_res32_t; |
636 | ||
637 | static int compat_drm_resctx(struct file *file, unsigned int cmd, | |
638 | unsigned long arg) | |
639 | { | |
640 | drm_ctx_res32_t __user *argp = (void __user *)arg; | |
641 | drm_ctx_res32_t res32; | |
ff4135ae | 642 | struct drm_ctx_res __user *res; |
9a186645 DA |
643 | int err; |
644 | ||
645 | if (copy_from_user(&res32, argp, sizeof(res32))) | |
646 | return -EFAULT; | |
647 | ||
648 | res = compat_alloc_user_space(sizeof(*res)); | |
1f96beec | 649 | if (!res) |
9a186645 DA |
650 | return -EFAULT; |
651 | if (__put_user(res32.count, &res->count) | |
ff4135ae | 652 | || __put_user((struct drm_ctx __user *) (unsigned long)res32.contexts, |
9a186645 DA |
653 | &res->contexts)) |
654 | return -EFAULT; | |
655 | ||
ed8b6704 | 656 | err = drm_ioctl(file, DRM_IOCTL_RES_CTX, (unsigned long)res); |
9a186645 DA |
657 | if (err) |
658 | return err; | |
659 | ||
660 | if (__get_user(res32.count, &res->count) | |
661 | || __put_user(res32.count, &argp->count)) | |
662 | return -EFAULT; | |
663 | ||
664 | return 0; | |
665 | } | |
666 | ||
667 | typedef struct drm_dma32 { | |
b5e89ed5 DA |
668 | int context; /**< Context handle */ |
669 | int send_count; /**< Number of buffers to send */ | |
670 | u32 send_indices; /**< List of handles to buffers */ | |
671 | u32 send_sizes; /**< Lengths of data to send */ | |
ff4135ae | 672 | enum drm_dma_flags flags; /**< Flags */ |
b5e89ed5 DA |
673 | int request_count; /**< Number of buffers requested */ |
674 | int request_size; /**< Desired size for buffers */ | |
675 | u32 request_indices; /**< Buffer information */ | |
676 | u32 request_sizes; | |
677 | int granted_count; /**< Number of buffers granted */ | |
9a186645 DA |
678 | } drm_dma32_t; |
679 | ||
680 | static int compat_drm_dma(struct file *file, unsigned int cmd, | |
681 | unsigned long arg) | |
682 | { | |
683 | drm_dma32_t d32; | |
b5e89ed5 | 684 | drm_dma32_t __user *argp = (void __user *)arg; |
ff4135ae | 685 | struct drm_dma __user *d; |
9a186645 DA |
686 | int err; |
687 | ||
688 | if (copy_from_user(&d32, argp, sizeof(d32))) | |
689 | return -EFAULT; | |
690 | ||
691 | d = compat_alloc_user_space(sizeof(*d)); | |
1f96beec | 692 | if (!d) |
9a186645 DA |
693 | return -EFAULT; |
694 | ||
695 | if (__put_user(d32.context, &d->context) | |
696 | || __put_user(d32.send_count, &d->send_count) | |
b5e89ed5 | 697 | || __put_user((int __user *)(unsigned long)d32.send_indices, |
9a186645 | 698 | &d->send_indices) |
b5e89ed5 | 699 | || __put_user((int __user *)(unsigned long)d32.send_sizes, |
9a186645 DA |
700 | &d->send_sizes) |
701 | || __put_user(d32.flags, &d->flags) | |
702 | || __put_user(d32.request_count, &d->request_count) | |
b5e89ed5 | 703 | || __put_user((int __user *)(unsigned long)d32.request_indices, |
9a186645 | 704 | &d->request_indices) |
b5e89ed5 | 705 | || __put_user((int __user *)(unsigned long)d32.request_sizes, |
9a186645 DA |
706 | &d->request_sizes)) |
707 | return -EFAULT; | |
708 | ||
ed8b6704 | 709 | err = drm_ioctl(file, DRM_IOCTL_DMA, (unsigned long)d); |
9a186645 DA |
710 | if (err) |
711 | return err; | |
712 | ||
713 | if (__get_user(d32.request_size, &d->request_size) | |
714 | || __get_user(d32.granted_count, &d->granted_count) | |
715 | || __put_user(d32.request_size, &argp->request_size) | |
716 | || __put_user(d32.granted_count, &argp->granted_count)) | |
717 | return -EFAULT; | |
718 | ||
719 | return 0; | |
720 | } | |
721 | ||
a7fb8a23 | 722 | #if IS_ENABLED(CONFIG_AGP) |
9a186645 DA |
723 | typedef struct drm_agp_mode32 { |
724 | u32 mode; /**< AGP mode */ | |
725 | } drm_agp_mode32_t; | |
726 | ||
727 | static int compat_drm_agp_enable(struct file *file, unsigned int cmd, | |
728 | unsigned long arg) | |
729 | { | |
730 | drm_agp_mode32_t __user *argp = (void __user *)arg; | |
731 | drm_agp_mode32_t m32; | |
ff4135ae | 732 | struct drm_agp_mode __user *mode; |
9a186645 DA |
733 | |
734 | if (get_user(m32.mode, &argp->mode)) | |
735 | return -EFAULT; | |
736 | ||
737 | mode = compat_alloc_user_space(sizeof(*mode)); | |
738 | if (put_user(m32.mode, &mode->mode)) | |
739 | return -EFAULT; | |
740 | ||
ed8b6704 | 741 | return drm_ioctl(file, DRM_IOCTL_AGP_ENABLE, (unsigned long)mode); |
9a186645 DA |
742 | } |
743 | ||
744 | typedef struct drm_agp_info32 { | |
b5e89ed5 DA |
745 | int agp_version_major; |
746 | int agp_version_minor; | |
747 | u32 mode; | |
748 | u32 aperture_base; /* physical address */ | |
749 | u32 aperture_size; /* bytes */ | |
750 | u32 memory_allowed; /* bytes */ | |
751 | u32 memory_used; | |
752 | ||
753 | /* PCI information */ | |
9a186645 DA |
754 | unsigned short id_vendor; |
755 | unsigned short id_device; | |
756 | } drm_agp_info32_t; | |
757 | ||
758 | static int compat_drm_agp_info(struct file *file, unsigned int cmd, | |
759 | unsigned long arg) | |
760 | { | |
761 | drm_agp_info32_t __user *argp = (void __user *)arg; | |
762 | drm_agp_info32_t i32; | |
ff4135ae | 763 | struct drm_agp_info __user *info; |
9a186645 DA |
764 | int err; |
765 | ||
766 | info = compat_alloc_user_space(sizeof(*info)); | |
1f96beec | 767 | if (!info) |
9a186645 DA |
768 | return -EFAULT; |
769 | ||
ed8b6704 | 770 | err = drm_ioctl(file, DRM_IOCTL_AGP_INFO, (unsigned long)info); |
9a186645 DA |
771 | if (err) |
772 | return err; | |
773 | ||
774 | if (__get_user(i32.agp_version_major, &info->agp_version_major) | |
775 | || __get_user(i32.agp_version_minor, &info->agp_version_minor) | |
776 | || __get_user(i32.mode, &info->mode) | |
777 | || __get_user(i32.aperture_base, &info->aperture_base) | |
778 | || __get_user(i32.aperture_size, &info->aperture_size) | |
779 | || __get_user(i32.memory_allowed, &info->memory_allowed) | |
780 | || __get_user(i32.memory_used, &info->memory_used) | |
781 | || __get_user(i32.id_vendor, &info->id_vendor) | |
782 | || __get_user(i32.id_device, &info->id_device)) | |
783 | return -EFAULT; | |
784 | ||
785 | if (copy_to_user(argp, &i32, sizeof(i32))) | |
786 | return -EFAULT; | |
787 | ||
788 | return 0; | |
789 | } | |
790 | ||
791 | typedef struct drm_agp_buffer32 { | |
792 | u32 size; /**< In bytes -- will round to page boundary */ | |
793 | u32 handle; /**< Used for binding / unbinding */ | |
794 | u32 type; /**< Type of memory to allocate */ | |
b5e89ed5 | 795 | u32 physical; /**< Physical used by i810 */ |
9a186645 DA |
796 | } drm_agp_buffer32_t; |
797 | ||
798 | static int compat_drm_agp_alloc(struct file *file, unsigned int cmd, | |
799 | unsigned long arg) | |
800 | { | |
801 | drm_agp_buffer32_t __user *argp = (void __user *)arg; | |
802 | drm_agp_buffer32_t req32; | |
ff4135ae | 803 | struct drm_agp_buffer __user *request; |
9a186645 DA |
804 | int err; |
805 | ||
806 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
807 | return -EFAULT; | |
808 | ||
809 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 810 | if (!request |
9a186645 DA |
811 | || __put_user(req32.size, &request->size) |
812 | || __put_user(req32.type, &request->type)) | |
813 | return -EFAULT; | |
814 | ||
ed8b6704 | 815 | err = drm_ioctl(file, DRM_IOCTL_AGP_ALLOC, (unsigned long)request); |
9a186645 DA |
816 | if (err) |
817 | return err; | |
818 | ||
819 | if (__get_user(req32.handle, &request->handle) | |
820 | || __get_user(req32.physical, &request->physical) | |
821 | || copy_to_user(argp, &req32, sizeof(req32))) { | |
ed8b6704 | 822 | drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request); |
9a186645 DA |
823 | return -EFAULT; |
824 | } | |
825 | ||
826 | return 0; | |
827 | } | |
828 | ||
829 | static int compat_drm_agp_free(struct file *file, unsigned int cmd, | |
830 | unsigned long arg) | |
831 | { | |
832 | drm_agp_buffer32_t __user *argp = (void __user *)arg; | |
ff4135ae | 833 | struct drm_agp_buffer __user *request; |
9a186645 DA |
834 | u32 handle; |
835 | ||
836 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 837 | if (!request |
9a186645 DA |
838 | || get_user(handle, &argp->handle) |
839 | || __put_user(handle, &request->handle)) | |
840 | return -EFAULT; | |
841 | ||
ed8b6704 | 842 | return drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request); |
9a186645 DA |
843 | } |
844 | ||
845 | typedef struct drm_agp_binding32 { | |
846 | u32 handle; /**< From drm_agp_buffer */ | |
847 | u32 offset; /**< In bytes -- will round to page boundary */ | |
848 | } drm_agp_binding32_t; | |
849 | ||
850 | static int compat_drm_agp_bind(struct file *file, unsigned int cmd, | |
851 | unsigned long arg) | |
852 | { | |
853 | drm_agp_binding32_t __user *argp = (void __user *)arg; | |
854 | drm_agp_binding32_t req32; | |
ff4135ae | 855 | struct drm_agp_binding __user *request; |
9a186645 DA |
856 | |
857 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
858 | return -EFAULT; | |
859 | ||
860 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 861 | if (!request |
9a186645 DA |
862 | || __put_user(req32.handle, &request->handle) |
863 | || __put_user(req32.offset, &request->offset)) | |
864 | return -EFAULT; | |
865 | ||
ed8b6704 | 866 | return drm_ioctl(file, DRM_IOCTL_AGP_BIND, (unsigned long)request); |
9a186645 DA |
867 | } |
868 | ||
869 | static int compat_drm_agp_unbind(struct file *file, unsigned int cmd, | |
870 | unsigned long arg) | |
871 | { | |
872 | drm_agp_binding32_t __user *argp = (void __user *)arg; | |
ff4135ae | 873 | struct drm_agp_binding __user *request; |
9a186645 DA |
874 | u32 handle; |
875 | ||
876 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 877 | if (!request |
9a186645 DA |
878 | || get_user(handle, &argp->handle) |
879 | || __put_user(handle, &request->handle)) | |
880 | return -EFAULT; | |
881 | ||
ed8b6704 | 882 | return drm_ioctl(file, DRM_IOCTL_AGP_UNBIND, (unsigned long)request); |
9a186645 | 883 | } |
a7fb8a23 | 884 | #endif /* CONFIG_AGP */ |
9a186645 DA |
885 | |
886 | typedef struct drm_scatter_gather32 { | |
887 | u32 size; /**< In bytes -- will round to page boundary */ | |
888 | u32 handle; /**< Used for mapping / unmapping */ | |
889 | } drm_scatter_gather32_t; | |
890 | ||
891 | static int compat_drm_sg_alloc(struct file *file, unsigned int cmd, | |
892 | unsigned long arg) | |
893 | { | |
894 | drm_scatter_gather32_t __user *argp = (void __user *)arg; | |
ff4135ae | 895 | struct drm_scatter_gather __user *request; |
9a186645 DA |
896 | int err; |
897 | unsigned long x; | |
898 | ||
899 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 900 | if (!request || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)) |
9a186645 DA |
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 | ||
917 | static 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)); | |
1f96beec | 925 | if (!request || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)) |
9a186645 DA |
926 | || __get_user(x, &argp->handle) |
927 | || __put_user(x << PAGE_SHIFT, &request->handle)) | |
928 | return -EFAULT; | |
929 | ||
ed8b6704 | 930 | return drm_ioctl(file, DRM_IOCTL_SG_FREE, (unsigned long)request); |
9a186645 DA |
931 | } |
932 | ||
09e40d65 | 933 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
49568873 EA |
934 | typedef struct drm_update_draw32 { |
935 | drm_drawable_t handle; | |
936 | unsigned int type; | |
937 | unsigned int num; | |
938 | /* 64-bit version has a 32-bit pad here */ | |
939 | u64 data; /**< Pointer */ | |
940 | } __attribute__((packed)) drm_update_draw32_t; | |
941 | ||
942 | static int compat_drm_update_draw(struct file *file, unsigned int cmd, | |
943 | unsigned long arg) | |
944 | { | |
945 | drm_update_draw32_t update32; | |
946 | struct drm_update_draw __user *request; | |
947 | int err; | |
948 | ||
949 | if (copy_from_user(&update32, (void __user *)arg, sizeof(update32))) | |
950 | return -EFAULT; | |
951 | ||
952 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 953 | if (!request || |
49568873 EA |
954 | __put_user(update32.handle, &request->handle) || |
955 | __put_user(update32.type, &request->type) || | |
956 | __put_user(update32.num, &request->num) || | |
957 | __put_user(update32.data, &request->data)) | |
958 | return -EFAULT; | |
959 | ||
ed8b6704 | 960 | err = drm_ioctl(file, DRM_IOCTL_UPDATE_DRAW, (unsigned long)request); |
49568873 EA |
961 | return err; |
962 | } | |
09e40d65 | 963 | #endif |
49568873 | 964 | |
9a186645 | 965 | struct drm_wait_vblank_request32 { |
ff4135ae | 966 | enum drm_vblank_seq_type type; |
9a186645 DA |
967 | unsigned int sequence; |
968 | u32 signal; | |
969 | }; | |
970 | ||
971 | struct drm_wait_vblank_reply32 { | |
ff4135ae | 972 | enum drm_vblank_seq_type type; |
9a186645 DA |
973 | unsigned int sequence; |
974 | s32 tval_sec; | |
975 | s32 tval_usec; | |
976 | }; | |
977 | ||
978 | typedef union drm_wait_vblank32 { | |
979 | struct drm_wait_vblank_request32 request; | |
980 | struct drm_wait_vblank_reply32 reply; | |
981 | } drm_wait_vblank32_t; | |
982 | ||
983 | static int compat_drm_wait_vblank(struct file *file, unsigned int cmd, | |
984 | unsigned long arg) | |
985 | { | |
986 | drm_wait_vblank32_t __user *argp = (void __user *)arg; | |
987 | drm_wait_vblank32_t req32; | |
ff4135ae | 988 | union drm_wait_vblank __user *request; |
9a186645 DA |
989 | int err; |
990 | ||
991 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
992 | return -EFAULT; | |
993 | ||
994 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 995 | if (!request |
9a186645 DA |
996 | || __put_user(req32.request.type, &request->request.type) |
997 | || __put_user(req32.request.sequence, &request->request.sequence) | |
998 | || __put_user(req32.request.signal, &request->request.signal)) | |
999 | return -EFAULT; | |
1000 | ||
ed8b6704 | 1001 | err = drm_ioctl(file, DRM_IOCTL_WAIT_VBLANK, (unsigned long)request); |
9a186645 DA |
1002 | if (err) |
1003 | return err; | |
1004 | ||
1005 | if (__get_user(req32.reply.type, &request->reply.type) | |
1006 | || __get_user(req32.reply.sequence, &request->reply.sequence) | |
1007 | || __get_user(req32.reply.tval_sec, &request->reply.tval_sec) | |
1008 | || __get_user(req32.reply.tval_usec, &request->reply.tval_usec)) | |
1009 | return -EFAULT; | |
1010 | ||
1011 | if (copy_to_user(argp, &req32, sizeof(req32))) | |
1012 | return -EFAULT; | |
1013 | ||
1014 | return 0; | |
1015 | } | |
1016 | ||
a988588b | 1017 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
c631d5f9 TU |
1018 | typedef struct drm_mode_fb_cmd232 { |
1019 | u32 fb_id; | |
1020 | u32 width; | |
1021 | u32 height; | |
1022 | u32 pixel_format; | |
1023 | u32 flags; | |
1024 | u32 handles[4]; | |
1025 | u32 pitches[4]; | |
1026 | u32 offsets[4]; | |
1027 | u64 modifier[4]; | |
1028 | } __attribute__((packed)) drm_mode_fb_cmd232_t; | |
1029 | ||
1030 | static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd, | |
1031 | unsigned long arg) | |
1032 | { | |
1033 | struct drm_mode_fb_cmd232 __user *argp = (void __user *)arg; | |
1034 | struct drm_mode_fb_cmd232 req32; | |
1035 | struct drm_mode_fb_cmd2 __user *req64; | |
1036 | int i; | |
1037 | int err; | |
1038 | ||
1039 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
1040 | return -EFAULT; | |
1041 | ||
1042 | req64 = compat_alloc_user_space(sizeof(*req64)); | |
1043 | ||
1044 | if (!access_ok(VERIFY_WRITE, req64, sizeof(*req64)) | |
1045 | || __put_user(req32.width, &req64->width) | |
1046 | || __put_user(req32.height, &req64->height) | |
1047 | || __put_user(req32.pixel_format, &req64->pixel_format) | |
1048 | || __put_user(req32.flags, &req64->flags)) | |
1049 | return -EFAULT; | |
1050 | ||
1051 | for (i = 0; i < 4; i++) { | |
1052 | if (__put_user(req32.handles[i], &req64->handles[i])) | |
1053 | return -EFAULT; | |
1054 | if (__put_user(req32.pitches[i], &req64->pitches[i])) | |
1055 | return -EFAULT; | |
1056 | if (__put_user(req32.offsets[i], &req64->offsets[i])) | |
1057 | return -EFAULT; | |
1058 | if (__put_user(req32.modifier[i], &req64->modifier[i])) | |
1059 | return -EFAULT; | |
1060 | } | |
1061 | ||
1062 | err = drm_ioctl(file, DRM_IOCTL_MODE_ADDFB2, (unsigned long)req64); | |
1063 | if (err) | |
1064 | return err; | |
1065 | ||
1066 | if (__get_user(req32.fb_id, &req64->fb_id)) | |
1067 | return -EFAULT; | |
1068 | ||
1069 | if (copy_to_user(argp, &req32, sizeof(req32))) | |
1070 | return -EFAULT; | |
1071 | ||
1072 | return 0; | |
1073 | } | |
a988588b | 1074 | #endif |
c631d5f9 | 1075 | |
9f43e542 AV |
1076 | static struct { |
1077 | drm_ioctl_compat_t *fn; | |
1078 | char *name; | |
1079 | } drm_compat_ioctls[] = { | |
1080 | [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)].fn = compat_drm_version, | |
1081 | [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)].fn = compat_drm_getunique, | |
1082 | [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)].fn = compat_drm_getmap, | |
1083 | [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)].fn = compat_drm_getclient, | |
1084 | [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)].fn = compat_drm_getstats, | |
1085 | [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE32)].fn = compat_drm_setunique, | |
1086 | [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)].fn = compat_drm_addmap, | |
1087 | [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS32)].fn = compat_drm_addbufs, | |
1088 | [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)].fn = compat_drm_markbufs, | |
1089 | [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS32)].fn = compat_drm_infobufs, | |
1090 | [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)].fn = compat_drm_mapbufs, | |
1091 | [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)].fn = compat_drm_freebufs, | |
1092 | [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)].fn = compat_drm_rmmap, | |
1093 | [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX32)].fn = compat_drm_setsareactx, | |
1094 | [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)].fn = compat_drm_getsareactx, | |
1095 | [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)].fn = compat_drm_resctx, | |
1096 | [DRM_IOCTL_NR(DRM_IOCTL_DMA32)].fn = compat_drm_dma, | |
a7fb8a23 | 1097 | #if IS_ENABLED(CONFIG_AGP) |
9f43e542 AV |
1098 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)].fn = compat_drm_agp_enable, |
1099 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)].fn = compat_drm_agp_info, | |
1100 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)].fn = compat_drm_agp_alloc, | |
1101 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)].fn = compat_drm_agp_free, | |
1102 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)].fn = compat_drm_agp_bind, | |
1103 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)].fn = compat_drm_agp_unbind, | |
9a186645 | 1104 | #endif |
9f43e542 AV |
1105 | [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)].fn = compat_drm_sg_alloc, |
1106 | [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)].fn = compat_drm_sg_free, | |
09e40d65 | 1107 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
9f43e542 | 1108 | [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW32)].fn = compat_drm_update_draw, |
09e40d65 | 1109 | #endif |
9f43e542 | 1110 | [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)].fn = compat_drm_wait_vblank, |
a988588b | 1111 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
9f43e542 | 1112 | [DRM_IOCTL_NR(DRM_IOCTL_MODE_ADDFB232)].fn = compat_drm_mode_addfb2, |
a988588b | 1113 | #endif |
9a186645 DA |
1114 | }; |
1115 | ||
1116 | /** | |
2640981f DV |
1117 | * drm_compat_ioctl - 32bit IOCTL compatibility handler for DRM drivers |
1118 | * @filp: file this ioctl is called on | |
1119 | * @cmd: ioctl cmd number | |
1120 | * @arg: user argument | |
1121 | * | |
1122 | * Compatibility handler for 32 bit userspace running on 64 kernels. All actual | |
1123 | * IOCTL handling is forwarded to drm_ioctl(), while marshalling structures as | |
1124 | * appropriate. Note that this only handles DRM core IOCTLs, if the driver has | |
1125 | * botched IOCTL itself, it must handle those by wrapping this function. | |
9a186645 | 1126 | * |
2640981f DV |
1127 | * Returns: |
1128 | * Zero on success, negative error code on failure. | |
9a186645 DA |
1129 | */ |
1130 | long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) | |
1131 | { | |
1132 | unsigned int nr = DRM_IOCTL_NR(cmd); | |
1133 | drm_ioctl_compat_t *fn; | |
1134 | int ret; | |
1135 | ||
7ffa05e0 IR |
1136 | /* Assume that ioctls without an explicit compat routine will just |
1137 | * work. This may not always be a good assumption, but it's better | |
1138 | * than always failing. | |
1139 | */ | |
3d77461e | 1140 | if (nr >= ARRAY_SIZE(drm_compat_ioctls)) |
ed8b6704 | 1141 | return drm_ioctl(filp, cmd, arg); |
9a186645 | 1142 | |
9f43e542 AV |
1143 | fn = drm_compat_ioctls[nr].fn; |
1144 | if (!fn) | |
1145 | return drm_ioctl(filp, cmd, arg); | |
9a186645 | 1146 | |
9f43e542 AV |
1147 | if (drm_compat_ioctls[nr].name) { |
1148 | struct drm_file *file_priv = filp->private_data; | |
1149 | DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n", | |
1150 | task_pid_nr(current), | |
1151 | (long)old_encode_dev(file_priv->minor->kdev->devt), | |
1152 | file_priv->authenticated, | |
1153 | drm_compat_ioctls[nr].name); | |
b5e89ed5 | 1154 | ret = (*fn) (filp, cmd, arg); |
9f43e542 AV |
1155 | if (ret) |
1156 | DRM_DEBUG("ret = %d\n", ret); | |
1157 | } else { | |
1158 | ret = (*fn) (filp, cmd, arg); | |
1159 | } | |
9a186645 DA |
1160 | return ret; |
1161 | } | |
1162 | EXPORT_SYMBOL(drm_compat_ioctl); |