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> |
ff22ff9e | 35 | #include "drm_legacy.h" |
012c6741 | 36 | #include "drm_internal.h" |
9a186645 DA |
37 | |
38 | #define DRM_IOCTL_VERSION32 DRM_IOWR(0x00, drm_version32_t) | |
39 | #define DRM_IOCTL_GET_UNIQUE32 DRM_IOWR(0x01, drm_unique32_t) | |
40 | #define DRM_IOCTL_GET_MAP32 DRM_IOWR(0x04, drm_map32_t) | |
41 | #define DRM_IOCTL_GET_CLIENT32 DRM_IOWR(0x05, drm_client32_t) | |
42 | #define DRM_IOCTL_GET_STATS32 DRM_IOR( 0x06, drm_stats32_t) | |
43 | ||
44 | #define DRM_IOCTL_SET_UNIQUE32 DRM_IOW( 0x10, drm_unique32_t) | |
45 | #define DRM_IOCTL_ADD_MAP32 DRM_IOWR(0x15, drm_map32_t) | |
46 | #define DRM_IOCTL_ADD_BUFS32 DRM_IOWR(0x16, drm_buf_desc32_t) | |
47 | #define DRM_IOCTL_MARK_BUFS32 DRM_IOW( 0x17, drm_buf_desc32_t) | |
48 | #define DRM_IOCTL_INFO_BUFS32 DRM_IOWR(0x18, drm_buf_info32_t) | |
49 | #define DRM_IOCTL_MAP_BUFS32 DRM_IOWR(0x19, drm_buf_map32_t) | |
50 | #define DRM_IOCTL_FREE_BUFS32 DRM_IOW( 0x1a, drm_buf_free32_t) | |
51 | ||
52 | #define DRM_IOCTL_RM_MAP32 DRM_IOW( 0x1b, drm_map32_t) | |
53 | ||
54 | #define DRM_IOCTL_SET_SAREA_CTX32 DRM_IOW( 0x1c, drm_ctx_priv_map32_t) | |
55 | #define DRM_IOCTL_GET_SAREA_CTX32 DRM_IOWR(0x1d, drm_ctx_priv_map32_t) | |
56 | ||
57 | #define DRM_IOCTL_RES_CTX32 DRM_IOWR(0x26, drm_ctx_res32_t) | |
58 | #define DRM_IOCTL_DMA32 DRM_IOWR(0x29, drm_dma32_t) | |
59 | ||
60 | #define DRM_IOCTL_AGP_ENABLE32 DRM_IOW( 0x32, drm_agp_mode32_t) | |
61 | #define DRM_IOCTL_AGP_INFO32 DRM_IOR( 0x33, drm_agp_info32_t) | |
62 | #define DRM_IOCTL_AGP_ALLOC32 DRM_IOWR(0x34, drm_agp_buffer32_t) | |
63 | #define DRM_IOCTL_AGP_FREE32 DRM_IOW( 0x35, drm_agp_buffer32_t) | |
64 | #define DRM_IOCTL_AGP_BIND32 DRM_IOW( 0x36, drm_agp_binding32_t) | |
65 | #define DRM_IOCTL_AGP_UNBIND32 DRM_IOW( 0x37, drm_agp_binding32_t) | |
66 | ||
67 | #define DRM_IOCTL_SG_ALLOC32 DRM_IOW( 0x38, drm_scatter_gather32_t) | |
68 | #define DRM_IOCTL_SG_FREE32 DRM_IOW( 0x39, drm_scatter_gather32_t) | |
69 | ||
49568873 EA |
70 | #define DRM_IOCTL_UPDATE_DRAW32 DRM_IOW( 0x3f, drm_update_draw32_t) |
71 | ||
9a186645 DA |
72 | #define DRM_IOCTL_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_t) |
73 | ||
c631d5f9 TU |
74 | #define DRM_IOCTL_MODE_ADDFB232 DRM_IOWR(0xb8, drm_mode_fb_cmd232_t) |
75 | ||
9a186645 | 76 | typedef struct drm_version_32 { |
2640981f DV |
77 | int version_major; /* Major version */ |
78 | int version_minor; /* Minor version */ | |
79 | int version_patchlevel; /* Patch level */ | |
80 | u32 name_len; /* Length of name buffer */ | |
81 | u32 name; /* Name of driver */ | |
82 | u32 date_len; /* Length of date buffer */ | |
83 | u32 date; /* User-space buffer to hold date */ | |
84 | u32 desc_len; /* Length of desc buffer */ | |
85 | u32 desc; /* User-space buffer to hold desc */ | |
9a186645 DA |
86 | } drm_version32_t; |
87 | ||
88 | static int compat_drm_version(struct file *file, unsigned int cmd, | |
89 | unsigned long arg) | |
90 | { | |
91 | drm_version32_t v32; | |
012c6741 | 92 | struct drm_version v; |
9a186645 DA |
93 | int err; |
94 | ||
b5e89ed5 | 95 | if (copy_from_user(&v32, (void __user *)arg, sizeof(v32))) |
9a186645 DA |
96 | return -EFAULT; |
97 | ||
012c6741 AV |
98 | v = (struct drm_version) { |
99 | .name_len = v32.name_len, | |
100 | .name = compat_ptr(v32.name), | |
101 | .date_len = v32.date_len, | |
102 | .date = compat_ptr(v32.date), | |
103 | .desc_len = v32.desc_len, | |
104 | .desc = compat_ptr(v32.desc), | |
105 | }; | |
106 | err = drm_ioctl_kernel(file, drm_version, &v, | |
107 | DRM_UNLOCKED|DRM_RENDER_ALLOW|DRM_CONTROL_ALLOW); | |
9a186645 DA |
108 | if (err) |
109 | return err; | |
110 | ||
012c6741 AV |
111 | v32.version_major = v.version_major; |
112 | v32.version_minor = v.version_minor; | |
113 | v32.version_patchlevel = v.version_patchlevel; | |
b5e89ed5 | 114 | if (copy_to_user((void __user *)arg, &v32, sizeof(v32))) |
9a186645 DA |
115 | return -EFAULT; |
116 | return 0; | |
117 | } | |
118 | ||
119 | typedef struct drm_unique32 { | |
2640981f DV |
120 | u32 unique_len; /* Length of unique */ |
121 | u32 unique; /* Unique name for driver instantiation */ | |
9a186645 DA |
122 | } drm_unique32_t; |
123 | ||
124 | static int compat_drm_getunique(struct file *file, unsigned int cmd, | |
125 | unsigned long arg) | |
126 | { | |
127 | drm_unique32_t uq32; | |
17e3dade | 128 | struct drm_unique uq; |
9a186645 DA |
129 | int err; |
130 | ||
b5e89ed5 | 131 | if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32))) |
9a186645 | 132 | return -EFAULT; |
17e3dade AV |
133 | uq = (struct drm_unique){ |
134 | .unique_len = uq32.unique_len, | |
135 | .unique = compat_ptr(uq32.unique), | |
136 | }; | |
9a186645 | 137 | |
17e3dade | 138 | err = drm_ioctl_kernel(file, drm_getunique, &uq, DRM_UNLOCKED); |
9a186645 DA |
139 | if (err) |
140 | return err; | |
141 | ||
17e3dade | 142 | uq32.unique_len = uq.unique_len; |
b5e89ed5 | 143 | if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32))) |
9a186645 DA |
144 | return -EFAULT; |
145 | return 0; | |
146 | } | |
147 | ||
148 | static int compat_drm_setunique(struct file *file, unsigned int cmd, | |
149 | unsigned long arg) | |
150 | { | |
56c275cc AV |
151 | /* it's dead */ |
152 | return -EINVAL; | |
9a186645 DA |
153 | } |
154 | ||
155 | typedef struct drm_map32 { | |
2640981f DV |
156 | u32 offset; /* Requested physical address (0 for SAREA) */ |
157 | u32 size; /* Requested physical size (bytes) */ | |
158 | enum drm_map_type type; /* Type of memory to map */ | |
159 | enum drm_map_flags flags; /* Flags */ | |
160 | u32 handle; /* User-space: "Handle" to pass to mmap() */ | |
161 | int mtrr; /* MTRR slot used */ | |
9a186645 DA |
162 | } drm_map32_t; |
163 | ||
164 | static int compat_drm_getmap(struct file *file, unsigned int cmd, | |
165 | unsigned long arg) | |
166 | { | |
167 | drm_map32_t __user *argp = (void __user *)arg; | |
168 | drm_map32_t m32; | |
8c4fe499 AV |
169 | struct drm_map map; |
170 | int err; | |
9a186645 | 171 | |
8c4fe499 | 172 | if (copy_from_user(&m32, argp, sizeof(m32))) |
9a186645 DA |
173 | return -EFAULT; |
174 | ||
8c4fe499 AV |
175 | map.offset = m32.offset; |
176 | err = drm_ioctl_kernel(file, drm_legacy_getmap_ioctl, &map, DRM_UNLOCKED); | |
9a186645 DA |
177 | if (err) |
178 | return err; | |
179 | ||
8c4fe499 AV |
180 | m32.offset = map.offset; |
181 | m32.size = map.size; | |
182 | m32.type = map.type; | |
183 | m32.flags = map.flags; | |
184 | m32.handle = ptr_to_compat(map.handle); | |
185 | m32.mtrr = map.mtrr; | |
9a186645 DA |
186 | if (copy_to_user(argp, &m32, sizeof(m32))) |
187 | return -EFAULT; | |
188 | return 0; | |
189 | ||
190 | } | |
191 | ||
192 | static int compat_drm_addmap(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 err; |
199 | void *handle; | |
200 | ||
201 | if (copy_from_user(&m32, argp, sizeof(m32))) | |
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(m32.offset, &map->offset) | |
208 | || __put_user(m32.size, &map->size) | |
209 | || __put_user(m32.type, &map->type) | |
210 | || __put_user(m32.flags, &map->flags)) | |
211 | return -EFAULT; | |
212 | ||
ed8b6704 | 213 | err = drm_ioctl(file, DRM_IOCTL_ADD_MAP, (unsigned long)map); |
9a186645 DA |
214 | if (err) |
215 | return err; | |
216 | ||
217 | if (__get_user(m32.offset, &map->offset) | |
218 | || __get_user(m32.mtrr, &map->mtrr) | |
219 | || __get_user(handle, &map->handle)) | |
220 | return -EFAULT; | |
221 | ||
b5e89ed5 | 222 | m32.handle = (unsigned long)handle; |
cafe8d84 | 223 | if (m32.handle != (unsigned long)handle) |
499447db | 224 | pr_err_ratelimited("compat_drm_addmap truncated handle %p for type %d offset %x\n", |
cafe8d84 | 225 | handle, m32.type, m32.offset); |
9a186645 DA |
226 | |
227 | if (copy_to_user(argp, &m32, sizeof(m32))) | |
228 | return -EFAULT; | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
233 | static int compat_drm_rmmap(struct file *file, unsigned int cmd, | |
234 | unsigned long arg) | |
235 | { | |
236 | drm_map32_t __user *argp = (void __user *)arg; | |
ff4135ae | 237 | struct drm_map __user *map; |
9a186645 DA |
238 | u32 handle; |
239 | ||
240 | if (get_user(handle, &argp->handle)) | |
241 | return -EFAULT; | |
242 | ||
243 | map = compat_alloc_user_space(sizeof(*map)); | |
1f96beec | 244 | if (!map) |
9a186645 | 245 | return -EFAULT; |
b5e89ed5 | 246 | if (__put_user((void *)(unsigned long)handle, &map->handle)) |
9a186645 DA |
247 | return -EFAULT; |
248 | ||
ed8b6704 | 249 | return drm_ioctl(file, DRM_IOCTL_RM_MAP, (unsigned long)map); |
9a186645 DA |
250 | } |
251 | ||
252 | typedef struct drm_client32 { | |
2640981f DV |
253 | int idx; /* Which client desired? */ |
254 | int auth; /* Is client authenticated? */ | |
255 | u32 pid; /* Process ID */ | |
256 | u32 uid; /* User ID */ | |
257 | u32 magic; /* Magic */ | |
258 | u32 iocs; /* Ioctl count */ | |
9a186645 DA |
259 | } drm_client32_t; |
260 | ||
261 | static int compat_drm_getclient(struct file *file, unsigned int cmd, | |
262 | unsigned long arg) | |
263 | { | |
264 | drm_client32_t c32; | |
265 | drm_client32_t __user *argp = (void __user *)arg; | |
ff4135ae | 266 | struct drm_client __user *client; |
9a186645 DA |
267 | int idx, err; |
268 | ||
269 | if (get_user(idx, &argp->idx)) | |
270 | return -EFAULT; | |
271 | ||
272 | client = compat_alloc_user_space(sizeof(*client)); | |
1f96beec | 273 | if (!client) |
9a186645 DA |
274 | return -EFAULT; |
275 | if (__put_user(idx, &client->idx)) | |
276 | return -EFAULT; | |
277 | ||
ed8b6704 | 278 | err = drm_ioctl(file, DRM_IOCTL_GET_CLIENT, (unsigned long)client); |
9a186645 DA |
279 | if (err) |
280 | return err; | |
281 | ||
08bc3d4e JL |
282 | if (__get_user(c32.idx, &client->idx) |
283 | || __get_user(c32.auth, &client->auth) | |
9a186645 DA |
284 | || __get_user(c32.pid, &client->pid) |
285 | || __get_user(c32.uid, &client->uid) | |
286 | || __get_user(c32.magic, &client->magic) | |
287 | || __get_user(c32.iocs, &client->iocs)) | |
288 | return -EFAULT; | |
289 | ||
290 | if (copy_to_user(argp, &c32, sizeof(c32))) | |
291 | return -EFAULT; | |
292 | return 0; | |
293 | } | |
294 | ||
295 | typedef struct drm_stats32 { | |
296 | u32 count; | |
297 | struct { | |
298 | u32 value; | |
ff4135ae | 299 | enum drm_stat_type type; |
9a186645 DA |
300 | } data[15]; |
301 | } drm_stats32_t; | |
302 | ||
303 | static int compat_drm_getstats(struct file *file, unsigned int cmd, | |
304 | unsigned long arg) | |
305 | { | |
306 | drm_stats32_t s32; | |
307 | drm_stats32_t __user *argp = (void __user *)arg; | |
ff4135ae | 308 | struct drm_stats __user *stats; |
9a186645 DA |
309 | int i, err; |
310 | ||
ec913f31 | 311 | memset(&s32, 0, sizeof(drm_stats32_t)); |
9a186645 | 312 | stats = compat_alloc_user_space(sizeof(*stats)); |
1f96beec | 313 | if (!stats) |
9a186645 DA |
314 | return -EFAULT; |
315 | ||
ed8b6704 | 316 | err = drm_ioctl(file, DRM_IOCTL_GET_STATS, (unsigned long)stats); |
9a186645 DA |
317 | if (err) |
318 | return err; | |
319 | ||
320 | if (__get_user(s32.count, &stats->count)) | |
321 | return -EFAULT; | |
322 | for (i = 0; i < 15; ++i) | |
323 | if (__get_user(s32.data[i].value, &stats->data[i].value) | |
324 | || __get_user(s32.data[i].type, &stats->data[i].type)) | |
325 | return -EFAULT; | |
326 | ||
327 | if (copy_to_user(argp, &s32, sizeof(s32))) | |
328 | return -EFAULT; | |
329 | return 0; | |
330 | } | |
331 | ||
332 | typedef struct drm_buf_desc32 { | |
2640981f DV |
333 | int count; /* Number of buffers of this size */ |
334 | int size; /* Size in bytes */ | |
335 | int low_mark; /* Low water mark */ | |
336 | int high_mark; /* High water mark */ | |
b5e89ed5 | 337 | int flags; |
2640981f | 338 | u32 agp_start; /* Start address in the AGP aperture */ |
9a186645 DA |
339 | } drm_buf_desc32_t; |
340 | ||
341 | static int compat_drm_addbufs(struct file *file, unsigned int cmd, | |
342 | unsigned long arg) | |
343 | { | |
344 | drm_buf_desc32_t __user *argp = (void __user *)arg; | |
ff22ff9e AV |
345 | drm_buf_desc32_t desc32; |
346 | struct drm_buf_desc desc; | |
9a186645 | 347 | int err; |
9a186645 | 348 | |
ff22ff9e | 349 | if (copy_from_user(&desc32, argp, sizeof(drm_buf_desc32_t))) |
9a186645 DA |
350 | return -EFAULT; |
351 | ||
ff22ff9e AV |
352 | desc = (struct drm_buf_desc){ |
353 | desc32.count, desc32.size, desc32.low_mark, desc32.high_mark, | |
354 | desc32.flags, desc32.agp_start | |
355 | }; | |
9a186645 | 356 | |
ff22ff9e AV |
357 | err = drm_ioctl_kernel(file, drm_legacy_addbufs, &desc, |
358 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
359 | if (err) |
360 | return err; | |
361 | ||
ff22ff9e AV |
362 | desc32 = (drm_buf_desc32_t){ |
363 | desc.count, desc.size, desc.low_mark, desc.high_mark, | |
364 | desc.flags, desc.agp_start | |
365 | }; | |
366 | if (copy_to_user(argp, &desc32, sizeof(drm_buf_desc32_t))) | |
9a186645 DA |
367 | return -EFAULT; |
368 | ||
369 | return 0; | |
370 | } | |
371 | ||
372 | static int compat_drm_markbufs(struct file *file, unsigned int cmd, | |
373 | unsigned long arg) | |
374 | { | |
375 | drm_buf_desc32_t b32; | |
376 | drm_buf_desc32_t __user *argp = (void __user *)arg; | |
ff4135ae | 377 | struct drm_buf_desc __user *buf; |
9a186645 DA |
378 | |
379 | if (copy_from_user(&b32, argp, sizeof(b32))) | |
380 | return -EFAULT; | |
381 | ||
382 | buf = compat_alloc_user_space(sizeof(*buf)); | |
1f96beec | 383 | if (!buf) |
9a186645 DA |
384 | return -EFAULT; |
385 | ||
386 | if (__put_user(b32.size, &buf->size) | |
387 | || __put_user(b32.low_mark, &buf->low_mark) | |
388 | || __put_user(b32.high_mark, &buf->high_mark)) | |
389 | return -EFAULT; | |
390 | ||
ed8b6704 | 391 | return drm_ioctl(file, DRM_IOCTL_MARK_BUFS, (unsigned long)buf); |
9a186645 DA |
392 | } |
393 | ||
394 | typedef struct drm_buf_info32 { | |
b5e89ed5 DA |
395 | int count; /**< Entries in list */ |
396 | u32 list; | |
9a186645 DA |
397 | } drm_buf_info32_t; |
398 | ||
5c7640ab AV |
399 | static int copy_one_buf32(void *data, int count, struct drm_buf_entry *from) |
400 | { | |
401 | drm_buf_info32_t *request = data; | |
402 | drm_buf_desc32_t __user *to = compat_ptr(request->list); | |
403 | drm_buf_desc32_t v = {.count = from->buf_count, | |
404 | .size = from->buf_size, | |
405 | .low_mark = from->low_mark, | |
406 | .high_mark = from->high_mark}; | |
407 | return copy_to_user(to + count, &v, offsetof(drm_buf_desc32_t, flags)); | |
408 | } | |
409 | ||
410 | static int drm_legacy_infobufs32(struct drm_device *dev, void *data, | |
411 | struct drm_file *file_priv) | |
412 | { | |
413 | drm_buf_info32_t *request = data; | |
414 | return __drm_legacy_infobufs(dev, data, &request->count, copy_one_buf32); | |
415 | } | |
416 | ||
9a186645 DA |
417 | static int compat_drm_infobufs(struct file *file, unsigned int cmd, |
418 | unsigned long arg) | |
419 | { | |
420 | drm_buf_info32_t req32; | |
421 | drm_buf_info32_t __user *argp = (void __user *)arg; | |
5c7640ab | 422 | int err; |
9a186645 DA |
423 | |
424 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
425 | return -EFAULT; | |
426 | ||
5c7640ab AV |
427 | if (req32.count < 0) |
428 | req32.count = 0; | |
9a186645 | 429 | |
5c7640ab | 430 | err = drm_ioctl_kernel(file, drm_legacy_infobufs32, &req32, DRM_AUTH); |
9a186645 DA |
431 | if (err) |
432 | return err; | |
433 | ||
5c7640ab | 434 | if (put_user(req32.count, &argp->count)) |
9a186645 DA |
435 | return -EFAULT; |
436 | ||
437 | return 0; | |
438 | } | |
439 | ||
440 | typedef struct drm_buf_pub32 { | |
b5e89ed5 DA |
441 | int idx; /**< Index into the master buffer list */ |
442 | int total; /**< Buffer size */ | |
443 | int used; /**< Amount of buffer in use (for DMA) */ | |
444 | u32 address; /**< Address of buffer */ | |
9a186645 DA |
445 | } drm_buf_pub32_t; |
446 | ||
447 | typedef struct drm_buf_map32 { | |
b5e89ed5 DA |
448 | int count; /**< Length of the buffer list */ |
449 | u32 virtual; /**< Mmap'd area in user-virtual */ | |
450 | u32 list; /**< Buffer information */ | |
9a186645 DA |
451 | } drm_buf_map32_t; |
452 | ||
453 | static int compat_drm_mapbufs(struct file *file, unsigned int cmd, | |
454 | unsigned long arg) | |
455 | { | |
456 | drm_buf_map32_t __user *argp = (void __user *)arg; | |
457 | drm_buf_map32_t req32; | |
458 | drm_buf_pub32_t __user *list32; | |
ff4135ae DA |
459 | struct drm_buf_map __user *request; |
460 | struct drm_buf_pub __user *list; | |
9a186645 DA |
461 | int i, err; |
462 | int count, actual; | |
463 | size_t nbytes; | |
464 | void __user *addr; | |
465 | ||
466 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
467 | return -EFAULT; | |
468 | count = req32.count; | |
469 | list32 = (void __user *)(unsigned long)req32.list; | |
470 | ||
471 | if (count < 0) | |
472 | return -EINVAL; | |
ff4135ae | 473 | nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub); |
9a186645 | 474 | request = compat_alloc_user_space(nbytes); |
1f96beec | 475 | if (!request) |
9a186645 | 476 | return -EFAULT; |
ff4135ae | 477 | list = (struct drm_buf_pub *) (request + 1); |
9a186645 DA |
478 | |
479 | if (__put_user(count, &request->count) | |
480 | || __put_user(list, &request->list)) | |
481 | return -EFAULT; | |
482 | ||
ed8b6704 | 483 | err = drm_ioctl(file, DRM_IOCTL_MAP_BUFS, (unsigned long)request); |
9a186645 DA |
484 | if (err) |
485 | return err; | |
486 | ||
487 | if (__get_user(actual, &request->count)) | |
488 | return -EFAULT; | |
489 | if (count >= actual) | |
490 | for (i = 0; i < actual; ++i) | |
491 | if (__copy_in_user(&list32[i], &list[i], | |
ff4135ae | 492 | offsetof(struct drm_buf_pub, address)) |
9a186645 | 493 | || __get_user(addr, &list[i].address) |
b5e89ed5 | 494 | || __put_user((unsigned long)addr, |
9a186645 DA |
495 | &list32[i].address)) |
496 | return -EFAULT; | |
497 | ||
498 | if (__put_user(actual, &argp->count) | |
499 | || __get_user(addr, &request->virtual) | |
b5e89ed5 | 500 | || __put_user((unsigned long)addr, &argp->virtual)) |
9a186645 DA |
501 | return -EFAULT; |
502 | ||
503 | return 0; | |
504 | } | |
505 | ||
506 | typedef struct drm_buf_free32 { | |
b5e89ed5 DA |
507 | int count; |
508 | u32 list; | |
9a186645 DA |
509 | } drm_buf_free32_t; |
510 | ||
511 | static int compat_drm_freebufs(struct file *file, unsigned int cmd, | |
512 | unsigned long arg) | |
513 | { | |
514 | drm_buf_free32_t req32; | |
ff4135ae | 515 | struct drm_buf_free __user *request; |
9a186645 DA |
516 | drm_buf_free32_t __user *argp = (void __user *)arg; |
517 | ||
518 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
519 | return -EFAULT; | |
520 | ||
521 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 522 | if (!request) |
9a186645 DA |
523 | return -EFAULT; |
524 | if (__put_user(req32.count, &request->count) | |
b5e89ed5 | 525 | || __put_user((int __user *)(unsigned long)req32.list, |
9a186645 DA |
526 | &request->list)) |
527 | return -EFAULT; | |
528 | ||
ed8b6704 | 529 | return drm_ioctl(file, DRM_IOCTL_FREE_BUFS, (unsigned long)request); |
9a186645 DA |
530 | } |
531 | ||
532 | typedef struct drm_ctx_priv_map32 { | |
b5e89ed5 DA |
533 | unsigned int ctx_id; /**< Context requesting private mapping */ |
534 | u32 handle; /**< Handle of map */ | |
9a186645 DA |
535 | } drm_ctx_priv_map32_t; |
536 | ||
537 | static int compat_drm_setsareactx(struct file *file, unsigned int cmd, | |
538 | unsigned long arg) | |
539 | { | |
540 | drm_ctx_priv_map32_t req32; | |
ff4135ae | 541 | struct drm_ctx_priv_map __user *request; |
9a186645 DA |
542 | drm_ctx_priv_map32_t __user *argp = (void __user *)arg; |
543 | ||
544 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
545 | return -EFAULT; | |
546 | ||
547 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 548 | if (!request) |
9a186645 DA |
549 | return -EFAULT; |
550 | if (__put_user(req32.ctx_id, &request->ctx_id) | |
b5e89ed5 | 551 | || __put_user((void *)(unsigned long)req32.handle, |
9a186645 DA |
552 | &request->handle)) |
553 | return -EFAULT; | |
554 | ||
ed8b6704 | 555 | return drm_ioctl(file, DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request); |
9a186645 DA |
556 | } |
557 | ||
558 | static int compat_drm_getsareactx(struct file *file, unsigned int cmd, | |
559 | unsigned long arg) | |
560 | { | |
ff4135ae | 561 | struct drm_ctx_priv_map __user *request; |
9a186645 DA |
562 | drm_ctx_priv_map32_t __user *argp = (void __user *)arg; |
563 | int err; | |
564 | unsigned int ctx_id; | |
565 | void *handle; | |
566 | ||
567 | if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp)) | |
568 | || __get_user(ctx_id, &argp->ctx_id)) | |
569 | return -EFAULT; | |
570 | ||
571 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 572 | if (!request) |
9a186645 DA |
573 | return -EFAULT; |
574 | if (__put_user(ctx_id, &request->ctx_id)) | |
575 | return -EFAULT; | |
576 | ||
ed8b6704 | 577 | err = drm_ioctl(file, DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request); |
9a186645 DA |
578 | if (err) |
579 | return err; | |
580 | ||
581 | if (__get_user(handle, &request->handle) | |
b5e89ed5 | 582 | || __put_user((unsigned long)handle, &argp->handle)) |
9a186645 DA |
583 | return -EFAULT; |
584 | ||
585 | return 0; | |
586 | } | |
587 | ||
588 | typedef struct drm_ctx_res32 { | |
b5e89ed5 DA |
589 | int count; |
590 | u32 contexts; | |
9a186645 DA |
591 | } drm_ctx_res32_t; |
592 | ||
593 | static int compat_drm_resctx(struct file *file, unsigned int cmd, | |
594 | unsigned long arg) | |
595 | { | |
596 | drm_ctx_res32_t __user *argp = (void __user *)arg; | |
597 | drm_ctx_res32_t res32; | |
ff4135ae | 598 | struct drm_ctx_res __user *res; |
9a186645 DA |
599 | int err; |
600 | ||
601 | if (copy_from_user(&res32, argp, sizeof(res32))) | |
602 | return -EFAULT; | |
603 | ||
604 | res = compat_alloc_user_space(sizeof(*res)); | |
1f96beec | 605 | if (!res) |
9a186645 DA |
606 | return -EFAULT; |
607 | if (__put_user(res32.count, &res->count) | |
ff4135ae | 608 | || __put_user((struct drm_ctx __user *) (unsigned long)res32.contexts, |
9a186645 DA |
609 | &res->contexts)) |
610 | return -EFAULT; | |
611 | ||
ed8b6704 | 612 | err = drm_ioctl(file, DRM_IOCTL_RES_CTX, (unsigned long)res); |
9a186645 DA |
613 | if (err) |
614 | return err; | |
615 | ||
616 | if (__get_user(res32.count, &res->count) | |
617 | || __put_user(res32.count, &argp->count)) | |
618 | return -EFAULT; | |
619 | ||
620 | return 0; | |
621 | } | |
622 | ||
623 | typedef struct drm_dma32 { | |
b5e89ed5 DA |
624 | int context; /**< Context handle */ |
625 | int send_count; /**< Number of buffers to send */ | |
626 | u32 send_indices; /**< List of handles to buffers */ | |
627 | u32 send_sizes; /**< Lengths of data to send */ | |
ff4135ae | 628 | enum drm_dma_flags flags; /**< Flags */ |
b5e89ed5 DA |
629 | int request_count; /**< Number of buffers requested */ |
630 | int request_size; /**< Desired size for buffers */ | |
631 | u32 request_indices; /**< Buffer information */ | |
632 | u32 request_sizes; | |
633 | int granted_count; /**< Number of buffers granted */ | |
9a186645 DA |
634 | } drm_dma32_t; |
635 | ||
636 | static int compat_drm_dma(struct file *file, unsigned int cmd, | |
637 | unsigned long arg) | |
638 | { | |
639 | drm_dma32_t d32; | |
b5e89ed5 | 640 | drm_dma32_t __user *argp = (void __user *)arg; |
ff4135ae | 641 | struct drm_dma __user *d; |
9a186645 DA |
642 | int err; |
643 | ||
644 | if (copy_from_user(&d32, argp, sizeof(d32))) | |
645 | return -EFAULT; | |
646 | ||
647 | d = compat_alloc_user_space(sizeof(*d)); | |
1f96beec | 648 | if (!d) |
9a186645 DA |
649 | return -EFAULT; |
650 | ||
651 | if (__put_user(d32.context, &d->context) | |
652 | || __put_user(d32.send_count, &d->send_count) | |
b5e89ed5 | 653 | || __put_user((int __user *)(unsigned long)d32.send_indices, |
9a186645 | 654 | &d->send_indices) |
b5e89ed5 | 655 | || __put_user((int __user *)(unsigned long)d32.send_sizes, |
9a186645 DA |
656 | &d->send_sizes) |
657 | || __put_user(d32.flags, &d->flags) | |
658 | || __put_user(d32.request_count, &d->request_count) | |
b5e89ed5 | 659 | || __put_user((int __user *)(unsigned long)d32.request_indices, |
9a186645 | 660 | &d->request_indices) |
b5e89ed5 | 661 | || __put_user((int __user *)(unsigned long)d32.request_sizes, |
9a186645 DA |
662 | &d->request_sizes)) |
663 | return -EFAULT; | |
664 | ||
ed8b6704 | 665 | err = drm_ioctl(file, DRM_IOCTL_DMA, (unsigned long)d); |
9a186645 DA |
666 | if (err) |
667 | return err; | |
668 | ||
669 | if (__get_user(d32.request_size, &d->request_size) | |
670 | || __get_user(d32.granted_count, &d->granted_count) | |
671 | || __put_user(d32.request_size, &argp->request_size) | |
672 | || __put_user(d32.granted_count, &argp->granted_count)) | |
673 | return -EFAULT; | |
674 | ||
675 | return 0; | |
676 | } | |
677 | ||
a7fb8a23 | 678 | #if IS_ENABLED(CONFIG_AGP) |
9a186645 DA |
679 | typedef struct drm_agp_mode32 { |
680 | u32 mode; /**< AGP mode */ | |
681 | } drm_agp_mode32_t; | |
682 | ||
683 | static int compat_drm_agp_enable(struct file *file, unsigned int cmd, | |
684 | unsigned long arg) | |
685 | { | |
686 | drm_agp_mode32_t __user *argp = (void __user *)arg; | |
687 | drm_agp_mode32_t m32; | |
ff4135ae | 688 | struct drm_agp_mode __user *mode; |
9a186645 DA |
689 | |
690 | if (get_user(m32.mode, &argp->mode)) | |
691 | return -EFAULT; | |
692 | ||
693 | mode = compat_alloc_user_space(sizeof(*mode)); | |
694 | if (put_user(m32.mode, &mode->mode)) | |
695 | return -EFAULT; | |
696 | ||
ed8b6704 | 697 | return drm_ioctl(file, DRM_IOCTL_AGP_ENABLE, (unsigned long)mode); |
9a186645 DA |
698 | } |
699 | ||
700 | typedef struct drm_agp_info32 { | |
b5e89ed5 DA |
701 | int agp_version_major; |
702 | int agp_version_minor; | |
703 | u32 mode; | |
704 | u32 aperture_base; /* physical address */ | |
705 | u32 aperture_size; /* bytes */ | |
706 | u32 memory_allowed; /* bytes */ | |
707 | u32 memory_used; | |
708 | ||
709 | /* PCI information */ | |
9a186645 DA |
710 | unsigned short id_vendor; |
711 | unsigned short id_device; | |
712 | } drm_agp_info32_t; | |
713 | ||
714 | static int compat_drm_agp_info(struct file *file, unsigned int cmd, | |
715 | unsigned long arg) | |
716 | { | |
717 | drm_agp_info32_t __user *argp = (void __user *)arg; | |
718 | drm_agp_info32_t i32; | |
ff4135ae | 719 | struct drm_agp_info __user *info; |
9a186645 DA |
720 | int err; |
721 | ||
722 | info = compat_alloc_user_space(sizeof(*info)); | |
1f96beec | 723 | if (!info) |
9a186645 DA |
724 | return -EFAULT; |
725 | ||
ed8b6704 | 726 | err = drm_ioctl(file, DRM_IOCTL_AGP_INFO, (unsigned long)info); |
9a186645 DA |
727 | if (err) |
728 | return err; | |
729 | ||
730 | if (__get_user(i32.agp_version_major, &info->agp_version_major) | |
731 | || __get_user(i32.agp_version_minor, &info->agp_version_minor) | |
732 | || __get_user(i32.mode, &info->mode) | |
733 | || __get_user(i32.aperture_base, &info->aperture_base) | |
734 | || __get_user(i32.aperture_size, &info->aperture_size) | |
735 | || __get_user(i32.memory_allowed, &info->memory_allowed) | |
736 | || __get_user(i32.memory_used, &info->memory_used) | |
737 | || __get_user(i32.id_vendor, &info->id_vendor) | |
738 | || __get_user(i32.id_device, &info->id_device)) | |
739 | return -EFAULT; | |
740 | ||
741 | if (copy_to_user(argp, &i32, sizeof(i32))) | |
742 | return -EFAULT; | |
743 | ||
744 | return 0; | |
745 | } | |
746 | ||
747 | typedef struct drm_agp_buffer32 { | |
748 | u32 size; /**< In bytes -- will round to page boundary */ | |
749 | u32 handle; /**< Used for binding / unbinding */ | |
750 | u32 type; /**< Type of memory to allocate */ | |
b5e89ed5 | 751 | u32 physical; /**< Physical used by i810 */ |
9a186645 DA |
752 | } drm_agp_buffer32_t; |
753 | ||
754 | static int compat_drm_agp_alloc(struct file *file, unsigned int cmd, | |
755 | unsigned long arg) | |
756 | { | |
757 | drm_agp_buffer32_t __user *argp = (void __user *)arg; | |
758 | drm_agp_buffer32_t req32; | |
ff4135ae | 759 | struct drm_agp_buffer __user *request; |
9a186645 DA |
760 | int err; |
761 | ||
762 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
763 | return -EFAULT; | |
764 | ||
765 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 766 | if (!request |
9a186645 DA |
767 | || __put_user(req32.size, &request->size) |
768 | || __put_user(req32.type, &request->type)) | |
769 | return -EFAULT; | |
770 | ||
ed8b6704 | 771 | err = drm_ioctl(file, DRM_IOCTL_AGP_ALLOC, (unsigned long)request); |
9a186645 DA |
772 | if (err) |
773 | return err; | |
774 | ||
775 | if (__get_user(req32.handle, &request->handle) | |
776 | || __get_user(req32.physical, &request->physical) | |
777 | || copy_to_user(argp, &req32, sizeof(req32))) { | |
ed8b6704 | 778 | drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request); |
9a186645 DA |
779 | return -EFAULT; |
780 | } | |
781 | ||
782 | return 0; | |
783 | } | |
784 | ||
785 | static int compat_drm_agp_free(struct file *file, unsigned int cmd, | |
786 | unsigned long arg) | |
787 | { | |
788 | drm_agp_buffer32_t __user *argp = (void __user *)arg; | |
ff4135ae | 789 | struct drm_agp_buffer __user *request; |
9a186645 DA |
790 | u32 handle; |
791 | ||
792 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 793 | if (!request |
9a186645 DA |
794 | || get_user(handle, &argp->handle) |
795 | || __put_user(handle, &request->handle)) | |
796 | return -EFAULT; | |
797 | ||
ed8b6704 | 798 | return drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request); |
9a186645 DA |
799 | } |
800 | ||
801 | typedef struct drm_agp_binding32 { | |
802 | u32 handle; /**< From drm_agp_buffer */ | |
803 | u32 offset; /**< In bytes -- will round to page boundary */ | |
804 | } drm_agp_binding32_t; | |
805 | ||
806 | static int compat_drm_agp_bind(struct file *file, unsigned int cmd, | |
807 | unsigned long arg) | |
808 | { | |
809 | drm_agp_binding32_t __user *argp = (void __user *)arg; | |
810 | drm_agp_binding32_t req32; | |
ff4135ae | 811 | struct drm_agp_binding __user *request; |
9a186645 DA |
812 | |
813 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
814 | return -EFAULT; | |
815 | ||
816 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 817 | if (!request |
9a186645 DA |
818 | || __put_user(req32.handle, &request->handle) |
819 | || __put_user(req32.offset, &request->offset)) | |
820 | return -EFAULT; | |
821 | ||
ed8b6704 | 822 | return drm_ioctl(file, DRM_IOCTL_AGP_BIND, (unsigned long)request); |
9a186645 DA |
823 | } |
824 | ||
825 | static int compat_drm_agp_unbind(struct file *file, unsigned int cmd, | |
826 | unsigned long arg) | |
827 | { | |
828 | drm_agp_binding32_t __user *argp = (void __user *)arg; | |
ff4135ae | 829 | struct drm_agp_binding __user *request; |
9a186645 DA |
830 | u32 handle; |
831 | ||
832 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 833 | if (!request |
9a186645 DA |
834 | || get_user(handle, &argp->handle) |
835 | || __put_user(handle, &request->handle)) | |
836 | return -EFAULT; | |
837 | ||
ed8b6704 | 838 | return drm_ioctl(file, DRM_IOCTL_AGP_UNBIND, (unsigned long)request); |
9a186645 | 839 | } |
a7fb8a23 | 840 | #endif /* CONFIG_AGP */ |
9a186645 DA |
841 | |
842 | typedef struct drm_scatter_gather32 { | |
843 | u32 size; /**< In bytes -- will round to page boundary */ | |
844 | u32 handle; /**< Used for mapping / unmapping */ | |
845 | } drm_scatter_gather32_t; | |
846 | ||
847 | static int compat_drm_sg_alloc(struct file *file, unsigned int cmd, | |
848 | unsigned long arg) | |
849 | { | |
850 | drm_scatter_gather32_t __user *argp = (void __user *)arg; | |
ff4135ae | 851 | struct drm_scatter_gather __user *request; |
9a186645 DA |
852 | int err; |
853 | unsigned long x; | |
854 | ||
855 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 856 | if (!request || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)) |
9a186645 DA |
857 | || __get_user(x, &argp->size) |
858 | || __put_user(x, &request->size)) | |
859 | return -EFAULT; | |
860 | ||
ed8b6704 | 861 | err = drm_ioctl(file, DRM_IOCTL_SG_ALLOC, (unsigned long)request); |
9a186645 DA |
862 | if (err) |
863 | return err; | |
864 | ||
865 | /* XXX not sure about the handle conversion here... */ | |
866 | if (__get_user(x, &request->handle) | |
867 | || __put_user(x >> PAGE_SHIFT, &argp->handle)) | |
868 | return -EFAULT; | |
869 | ||
870 | return 0; | |
871 | } | |
872 | ||
873 | static int compat_drm_sg_free(struct file *file, unsigned int cmd, | |
874 | unsigned long arg) | |
875 | { | |
876 | drm_scatter_gather32_t __user *argp = (void __user *)arg; | |
ff4135ae | 877 | struct drm_scatter_gather __user *request; |
9a186645 DA |
878 | unsigned long x; |
879 | ||
880 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 881 | if (!request || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)) |
9a186645 DA |
882 | || __get_user(x, &argp->handle) |
883 | || __put_user(x << PAGE_SHIFT, &request->handle)) | |
884 | return -EFAULT; | |
885 | ||
ed8b6704 | 886 | return drm_ioctl(file, DRM_IOCTL_SG_FREE, (unsigned long)request); |
9a186645 DA |
887 | } |
888 | ||
09e40d65 | 889 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
49568873 EA |
890 | typedef struct drm_update_draw32 { |
891 | drm_drawable_t handle; | |
892 | unsigned int type; | |
893 | unsigned int num; | |
894 | /* 64-bit version has a 32-bit pad here */ | |
895 | u64 data; /**< Pointer */ | |
896 | } __attribute__((packed)) drm_update_draw32_t; | |
897 | ||
898 | static int compat_drm_update_draw(struct file *file, unsigned int cmd, | |
899 | unsigned long arg) | |
900 | { | |
901 | drm_update_draw32_t update32; | |
902 | struct drm_update_draw __user *request; | |
903 | int err; | |
904 | ||
905 | if (copy_from_user(&update32, (void __user *)arg, sizeof(update32))) | |
906 | return -EFAULT; | |
907 | ||
908 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 909 | if (!request || |
49568873 EA |
910 | __put_user(update32.handle, &request->handle) || |
911 | __put_user(update32.type, &request->type) || | |
912 | __put_user(update32.num, &request->num) || | |
913 | __put_user(update32.data, &request->data)) | |
914 | return -EFAULT; | |
915 | ||
ed8b6704 | 916 | err = drm_ioctl(file, DRM_IOCTL_UPDATE_DRAW, (unsigned long)request); |
49568873 EA |
917 | return err; |
918 | } | |
09e40d65 | 919 | #endif |
49568873 | 920 | |
9a186645 | 921 | struct drm_wait_vblank_request32 { |
ff4135ae | 922 | enum drm_vblank_seq_type type; |
9a186645 DA |
923 | unsigned int sequence; |
924 | u32 signal; | |
925 | }; | |
926 | ||
927 | struct drm_wait_vblank_reply32 { | |
ff4135ae | 928 | enum drm_vblank_seq_type type; |
9a186645 DA |
929 | unsigned int sequence; |
930 | s32 tval_sec; | |
931 | s32 tval_usec; | |
932 | }; | |
933 | ||
934 | typedef union drm_wait_vblank32 { | |
935 | struct drm_wait_vblank_request32 request; | |
936 | struct drm_wait_vblank_reply32 reply; | |
937 | } drm_wait_vblank32_t; | |
938 | ||
939 | static int compat_drm_wait_vblank(struct file *file, unsigned int cmd, | |
940 | unsigned long arg) | |
941 | { | |
942 | drm_wait_vblank32_t __user *argp = (void __user *)arg; | |
943 | drm_wait_vblank32_t req32; | |
ff4135ae | 944 | union drm_wait_vblank __user *request; |
9a186645 DA |
945 | int err; |
946 | ||
947 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
948 | return -EFAULT; | |
949 | ||
950 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 951 | if (!request |
9a186645 DA |
952 | || __put_user(req32.request.type, &request->request.type) |
953 | || __put_user(req32.request.sequence, &request->request.sequence) | |
954 | || __put_user(req32.request.signal, &request->request.signal)) | |
955 | return -EFAULT; | |
956 | ||
ed8b6704 | 957 | err = drm_ioctl(file, DRM_IOCTL_WAIT_VBLANK, (unsigned long)request); |
9a186645 DA |
958 | if (err) |
959 | return err; | |
960 | ||
961 | if (__get_user(req32.reply.type, &request->reply.type) | |
962 | || __get_user(req32.reply.sequence, &request->reply.sequence) | |
963 | || __get_user(req32.reply.tval_sec, &request->reply.tval_sec) | |
964 | || __get_user(req32.reply.tval_usec, &request->reply.tval_usec)) | |
965 | return -EFAULT; | |
966 | ||
967 | if (copy_to_user(argp, &req32, sizeof(req32))) | |
968 | return -EFAULT; | |
969 | ||
970 | return 0; | |
971 | } | |
972 | ||
a988588b | 973 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
c631d5f9 TU |
974 | typedef struct drm_mode_fb_cmd232 { |
975 | u32 fb_id; | |
976 | u32 width; | |
977 | u32 height; | |
978 | u32 pixel_format; | |
979 | u32 flags; | |
980 | u32 handles[4]; | |
981 | u32 pitches[4]; | |
982 | u32 offsets[4]; | |
983 | u64 modifier[4]; | |
984 | } __attribute__((packed)) drm_mode_fb_cmd232_t; | |
985 | ||
986 | static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd, | |
987 | unsigned long arg) | |
988 | { | |
989 | struct drm_mode_fb_cmd232 __user *argp = (void __user *)arg; | |
990 | struct drm_mode_fb_cmd232 req32; | |
991 | struct drm_mode_fb_cmd2 __user *req64; | |
992 | int i; | |
993 | int err; | |
994 | ||
995 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
996 | return -EFAULT; | |
997 | ||
998 | req64 = compat_alloc_user_space(sizeof(*req64)); | |
999 | ||
1000 | if (!access_ok(VERIFY_WRITE, req64, sizeof(*req64)) | |
1001 | || __put_user(req32.width, &req64->width) | |
1002 | || __put_user(req32.height, &req64->height) | |
1003 | || __put_user(req32.pixel_format, &req64->pixel_format) | |
1004 | || __put_user(req32.flags, &req64->flags)) | |
1005 | return -EFAULT; | |
1006 | ||
1007 | for (i = 0; i < 4; i++) { | |
1008 | if (__put_user(req32.handles[i], &req64->handles[i])) | |
1009 | return -EFAULT; | |
1010 | if (__put_user(req32.pitches[i], &req64->pitches[i])) | |
1011 | return -EFAULT; | |
1012 | if (__put_user(req32.offsets[i], &req64->offsets[i])) | |
1013 | return -EFAULT; | |
1014 | if (__put_user(req32.modifier[i], &req64->modifier[i])) | |
1015 | return -EFAULT; | |
1016 | } | |
1017 | ||
1018 | err = drm_ioctl(file, DRM_IOCTL_MODE_ADDFB2, (unsigned long)req64); | |
1019 | if (err) | |
1020 | return err; | |
1021 | ||
1022 | if (__get_user(req32.fb_id, &req64->fb_id)) | |
1023 | return -EFAULT; | |
1024 | ||
1025 | if (copy_to_user(argp, &req32, sizeof(req32))) | |
1026 | return -EFAULT; | |
1027 | ||
1028 | return 0; | |
1029 | } | |
a988588b | 1030 | #endif |
c631d5f9 | 1031 | |
9f43e542 AV |
1032 | static struct { |
1033 | drm_ioctl_compat_t *fn; | |
1034 | char *name; | |
1035 | } drm_compat_ioctls[] = { | |
ff22ff9e | 1036 | #define DRM_IOCTL32_DEF(n, f) [DRM_IOCTL_NR(n##32)] = {.fn = f, .name = #n} |
012c6741 | 1037 | DRM_IOCTL32_DEF(DRM_IOCTL_VERSION, compat_drm_version), |
17e3dade | 1038 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_UNIQUE, compat_drm_getunique), |
8c4fe499 | 1039 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_MAP, compat_drm_getmap), |
9f43e542 AV |
1040 | [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)].fn = compat_drm_getclient, |
1041 | [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)].fn = compat_drm_getstats, | |
56c275cc | 1042 | DRM_IOCTL32_DEF(DRM_IOCTL_SET_UNIQUE, compat_drm_setunique), |
9f43e542 | 1043 | [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)].fn = compat_drm_addmap, |
ff22ff9e | 1044 | DRM_IOCTL32_DEF(DRM_IOCTL_ADD_BUFS, compat_drm_addbufs), |
9f43e542 | 1045 | [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)].fn = compat_drm_markbufs, |
5c7640ab | 1046 | DRM_IOCTL32_DEF(DRM_IOCTL_INFO_BUFS, compat_drm_infobufs), |
9f43e542 AV |
1047 | [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)].fn = compat_drm_mapbufs, |
1048 | [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)].fn = compat_drm_freebufs, | |
1049 | [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)].fn = compat_drm_rmmap, | |
1050 | [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX32)].fn = compat_drm_setsareactx, | |
1051 | [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)].fn = compat_drm_getsareactx, | |
1052 | [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)].fn = compat_drm_resctx, | |
1053 | [DRM_IOCTL_NR(DRM_IOCTL_DMA32)].fn = compat_drm_dma, | |
a7fb8a23 | 1054 | #if IS_ENABLED(CONFIG_AGP) |
9f43e542 AV |
1055 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)].fn = compat_drm_agp_enable, |
1056 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)].fn = compat_drm_agp_info, | |
1057 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)].fn = compat_drm_agp_alloc, | |
1058 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)].fn = compat_drm_agp_free, | |
1059 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)].fn = compat_drm_agp_bind, | |
1060 | [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)].fn = compat_drm_agp_unbind, | |
9a186645 | 1061 | #endif |
9f43e542 AV |
1062 | [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)].fn = compat_drm_sg_alloc, |
1063 | [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)].fn = compat_drm_sg_free, | |
09e40d65 | 1064 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
9f43e542 | 1065 | [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW32)].fn = compat_drm_update_draw, |
09e40d65 | 1066 | #endif |
9f43e542 | 1067 | [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)].fn = compat_drm_wait_vblank, |
a988588b | 1068 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
9f43e542 | 1069 | [DRM_IOCTL_NR(DRM_IOCTL_MODE_ADDFB232)].fn = compat_drm_mode_addfb2, |
a988588b | 1070 | #endif |
9a186645 DA |
1071 | }; |
1072 | ||
1073 | /** | |
2640981f DV |
1074 | * drm_compat_ioctl - 32bit IOCTL compatibility handler for DRM drivers |
1075 | * @filp: file this ioctl is called on | |
1076 | * @cmd: ioctl cmd number | |
1077 | * @arg: user argument | |
1078 | * | |
1079 | * Compatibility handler for 32 bit userspace running on 64 kernels. All actual | |
1080 | * IOCTL handling is forwarded to drm_ioctl(), while marshalling structures as | |
1081 | * appropriate. Note that this only handles DRM core IOCTLs, if the driver has | |
1082 | * botched IOCTL itself, it must handle those by wrapping this function. | |
9a186645 | 1083 | * |
2640981f DV |
1084 | * Returns: |
1085 | * Zero on success, negative error code on failure. | |
9a186645 DA |
1086 | */ |
1087 | long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) | |
1088 | { | |
1089 | unsigned int nr = DRM_IOCTL_NR(cmd); | |
1090 | drm_ioctl_compat_t *fn; | |
1091 | int ret; | |
1092 | ||
7ffa05e0 IR |
1093 | /* Assume that ioctls without an explicit compat routine will just |
1094 | * work. This may not always be a good assumption, but it's better | |
1095 | * than always failing. | |
1096 | */ | |
3d77461e | 1097 | if (nr >= ARRAY_SIZE(drm_compat_ioctls)) |
ed8b6704 | 1098 | return drm_ioctl(filp, cmd, arg); |
9a186645 | 1099 | |
9f43e542 AV |
1100 | fn = drm_compat_ioctls[nr].fn; |
1101 | if (!fn) | |
1102 | return drm_ioctl(filp, cmd, arg); | |
9a186645 | 1103 | |
9f43e542 AV |
1104 | if (drm_compat_ioctls[nr].name) { |
1105 | struct drm_file *file_priv = filp->private_data; | |
1106 | DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n", | |
1107 | task_pid_nr(current), | |
1108 | (long)old_encode_dev(file_priv->minor->kdev->devt), | |
1109 | file_priv->authenticated, | |
1110 | drm_compat_ioctls[nr].name); | |
b5e89ed5 | 1111 | ret = (*fn) (filp, cmd, arg); |
9f43e542 AV |
1112 | if (ret) |
1113 | DRM_DEBUG("ret = %d\n", ret); | |
1114 | } else { | |
1115 | ret = (*fn) (filp, cmd, arg); | |
1116 | } | |
9a186645 DA |
1117 | return ret; |
1118 | } | |
1119 | EXPORT_SYMBOL(drm_compat_ioctl); |