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Commit | Line | Data |
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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; | |
b36180a3 | 197 | struct drm_map map; |
9a186645 | 198 | int err; |
9a186645 DA |
199 | |
200 | if (copy_from_user(&m32, argp, sizeof(m32))) | |
201 | return -EFAULT; | |
202 | ||
b36180a3 AV |
203 | map.offset = m32.offset; |
204 | map.size = m32.size; | |
205 | map.type = m32.type; | |
206 | map.flags = m32.flags; | |
9a186645 | 207 | |
b36180a3 AV |
208 | err = drm_ioctl_kernel(file, drm_legacy_addmap_ioctl, &map, |
209 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
210 | if (err) |
211 | return err; | |
212 | ||
b36180a3 AV |
213 | m32.offset = map.offset; |
214 | m32.mtrr = map.mtrr; | |
215 | m32.handle = ptr_to_compat(map.handle); | |
216 | if (map.handle != compat_ptr(m32.handle)) | |
499447db | 217 | pr_err_ratelimited("compat_drm_addmap truncated handle %p for type %d offset %x\n", |
b36180a3 | 218 | map.handle, m32.type, m32.offset); |
9a186645 DA |
219 | |
220 | if (copy_to_user(argp, &m32, sizeof(m32))) | |
221 | return -EFAULT; | |
222 | ||
223 | return 0; | |
224 | } | |
225 | ||
226 | static int compat_drm_rmmap(struct file *file, unsigned int cmd, | |
227 | unsigned long arg) | |
228 | { | |
229 | drm_map32_t __user *argp = (void __user *)arg; | |
ff4135ae | 230 | struct drm_map __user *map; |
9a186645 DA |
231 | u32 handle; |
232 | ||
233 | if (get_user(handle, &argp->handle)) | |
234 | return -EFAULT; | |
235 | ||
236 | map = compat_alloc_user_space(sizeof(*map)); | |
1f96beec | 237 | if (!map) |
9a186645 | 238 | return -EFAULT; |
b5e89ed5 | 239 | if (__put_user((void *)(unsigned long)handle, &map->handle)) |
9a186645 DA |
240 | return -EFAULT; |
241 | ||
ed8b6704 | 242 | return drm_ioctl(file, DRM_IOCTL_RM_MAP, (unsigned long)map); |
9a186645 DA |
243 | } |
244 | ||
245 | typedef struct drm_client32 { | |
2640981f DV |
246 | int idx; /* Which client desired? */ |
247 | int auth; /* Is client authenticated? */ | |
248 | u32 pid; /* Process ID */ | |
249 | u32 uid; /* User ID */ | |
250 | u32 magic; /* Magic */ | |
251 | u32 iocs; /* Ioctl count */ | |
9a186645 DA |
252 | } drm_client32_t; |
253 | ||
254 | static int compat_drm_getclient(struct file *file, unsigned int cmd, | |
255 | unsigned long arg) | |
256 | { | |
257 | drm_client32_t c32; | |
258 | drm_client32_t __user *argp = (void __user *)arg; | |
9e92662d AV |
259 | struct drm_client client; |
260 | int err; | |
9a186645 | 261 | |
9e92662d | 262 | if (copy_from_user(&c32, argp, sizeof(c32))) |
9a186645 DA |
263 | return -EFAULT; |
264 | ||
9e92662d | 265 | client.idx = c32.idx; |
9a186645 | 266 | |
9e92662d | 267 | err = drm_ioctl_kernel(file, drm_getclient, &client, DRM_UNLOCKED); |
9a186645 DA |
268 | if (err) |
269 | return err; | |
270 | ||
9e92662d AV |
271 | c32.idx = client.idx; |
272 | c32.auth = client.auth; | |
273 | c32.pid = client.pid; | |
274 | c32.uid = client.uid; | |
275 | c32.magic = client.magic; | |
276 | c32.iocs = client.iocs; | |
9a186645 DA |
277 | |
278 | if (copy_to_user(argp, &c32, sizeof(c32))) | |
279 | return -EFAULT; | |
280 | return 0; | |
281 | } | |
282 | ||
283 | typedef struct drm_stats32 { | |
284 | u32 count; | |
285 | struct { | |
286 | u32 value; | |
ff4135ae | 287 | enum drm_stat_type type; |
9a186645 DA |
288 | } data[15]; |
289 | } drm_stats32_t; | |
290 | ||
291 | static int compat_drm_getstats(struct file *file, unsigned int cmd, | |
292 | unsigned long arg) | |
293 | { | |
9a186645 | 294 | drm_stats32_t __user *argp = (void __user *)arg; |
8547ee9d | 295 | int err; |
9a186645 | 296 | |
8547ee9d | 297 | err = drm_ioctl_kernel(file, drm_noop, NULL, DRM_UNLOCKED); |
9a186645 DA |
298 | if (err) |
299 | return err; | |
300 | ||
8547ee9d | 301 | if (clear_user(argp, sizeof(drm_stats32_t))) |
9a186645 DA |
302 | return -EFAULT; |
303 | return 0; | |
304 | } | |
305 | ||
306 | typedef struct drm_buf_desc32 { | |
2640981f DV |
307 | int count; /* Number of buffers of this size */ |
308 | int size; /* Size in bytes */ | |
309 | int low_mark; /* Low water mark */ | |
310 | int high_mark; /* High water mark */ | |
b5e89ed5 | 311 | int flags; |
2640981f | 312 | u32 agp_start; /* Start address in the AGP aperture */ |
9a186645 DA |
313 | } drm_buf_desc32_t; |
314 | ||
315 | static int compat_drm_addbufs(struct file *file, unsigned int cmd, | |
316 | unsigned long arg) | |
317 | { | |
318 | drm_buf_desc32_t __user *argp = (void __user *)arg; | |
ff22ff9e AV |
319 | drm_buf_desc32_t desc32; |
320 | struct drm_buf_desc desc; | |
9a186645 | 321 | int err; |
9a186645 | 322 | |
ff22ff9e | 323 | if (copy_from_user(&desc32, argp, sizeof(drm_buf_desc32_t))) |
9a186645 DA |
324 | return -EFAULT; |
325 | ||
ff22ff9e AV |
326 | desc = (struct drm_buf_desc){ |
327 | desc32.count, desc32.size, desc32.low_mark, desc32.high_mark, | |
328 | desc32.flags, desc32.agp_start | |
329 | }; | |
9a186645 | 330 | |
ff22ff9e AV |
331 | err = drm_ioctl_kernel(file, drm_legacy_addbufs, &desc, |
332 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
333 | if (err) |
334 | return err; | |
335 | ||
ff22ff9e AV |
336 | desc32 = (drm_buf_desc32_t){ |
337 | desc.count, desc.size, desc.low_mark, desc.high_mark, | |
338 | desc.flags, desc.agp_start | |
339 | }; | |
340 | if (copy_to_user(argp, &desc32, sizeof(drm_buf_desc32_t))) | |
9a186645 DA |
341 | return -EFAULT; |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
346 | static int compat_drm_markbufs(struct file *file, unsigned int cmd, | |
347 | unsigned long arg) | |
348 | { | |
349 | drm_buf_desc32_t b32; | |
350 | drm_buf_desc32_t __user *argp = (void __user *)arg; | |
dbae740e | 351 | struct drm_buf_desc __user buf; |
9a186645 DA |
352 | |
353 | if (copy_from_user(&b32, argp, sizeof(b32))) | |
354 | return -EFAULT; | |
355 | ||
dbae740e AV |
356 | buf.size = b32.size; |
357 | buf.low_mark = b32.low_mark; | |
358 | buf.high_mark = b32.high_mark; | |
9a186645 | 359 | |
dbae740e AV |
360 | return drm_ioctl_kernel(file, drm_legacy_markbufs, &buf, |
361 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
362 | } |
363 | ||
364 | typedef struct drm_buf_info32 { | |
b5e89ed5 DA |
365 | int count; /**< Entries in list */ |
366 | u32 list; | |
9a186645 DA |
367 | } drm_buf_info32_t; |
368 | ||
5c7640ab AV |
369 | static int copy_one_buf32(void *data, int count, struct drm_buf_entry *from) |
370 | { | |
371 | drm_buf_info32_t *request = data; | |
372 | drm_buf_desc32_t __user *to = compat_ptr(request->list); | |
373 | drm_buf_desc32_t v = {.count = from->buf_count, | |
374 | .size = from->buf_size, | |
375 | .low_mark = from->low_mark, | |
376 | .high_mark = from->high_mark}; | |
377 | return copy_to_user(to + count, &v, offsetof(drm_buf_desc32_t, flags)); | |
378 | } | |
379 | ||
380 | static int drm_legacy_infobufs32(struct drm_device *dev, void *data, | |
381 | struct drm_file *file_priv) | |
382 | { | |
383 | drm_buf_info32_t *request = data; | |
384 | return __drm_legacy_infobufs(dev, data, &request->count, copy_one_buf32); | |
385 | } | |
386 | ||
9a186645 DA |
387 | static int compat_drm_infobufs(struct file *file, unsigned int cmd, |
388 | unsigned long arg) | |
389 | { | |
390 | drm_buf_info32_t req32; | |
391 | drm_buf_info32_t __user *argp = (void __user *)arg; | |
5c7640ab | 392 | int err; |
9a186645 DA |
393 | |
394 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
395 | return -EFAULT; | |
396 | ||
5c7640ab AV |
397 | if (req32.count < 0) |
398 | req32.count = 0; | |
9a186645 | 399 | |
5c7640ab | 400 | err = drm_ioctl_kernel(file, drm_legacy_infobufs32, &req32, DRM_AUTH); |
9a186645 DA |
401 | if (err) |
402 | return err; | |
403 | ||
5c7640ab | 404 | if (put_user(req32.count, &argp->count)) |
9a186645 DA |
405 | return -EFAULT; |
406 | ||
407 | return 0; | |
408 | } | |
409 | ||
410 | typedef struct drm_buf_pub32 { | |
b5e89ed5 DA |
411 | int idx; /**< Index into the master buffer list */ |
412 | int total; /**< Buffer size */ | |
413 | int used; /**< Amount of buffer in use (for DMA) */ | |
414 | u32 address; /**< Address of buffer */ | |
9a186645 DA |
415 | } drm_buf_pub32_t; |
416 | ||
417 | typedef struct drm_buf_map32 { | |
b5e89ed5 DA |
418 | int count; /**< Length of the buffer list */ |
419 | u32 virtual; /**< Mmap'd area in user-virtual */ | |
420 | u32 list; /**< Buffer information */ | |
9a186645 DA |
421 | } drm_buf_map32_t; |
422 | ||
423 | static int compat_drm_mapbufs(struct file *file, unsigned int cmd, | |
424 | unsigned long arg) | |
425 | { | |
426 | drm_buf_map32_t __user *argp = (void __user *)arg; | |
427 | drm_buf_map32_t req32; | |
428 | drm_buf_pub32_t __user *list32; | |
ff4135ae DA |
429 | struct drm_buf_map __user *request; |
430 | struct drm_buf_pub __user *list; | |
9a186645 DA |
431 | int i, err; |
432 | int count, actual; | |
433 | size_t nbytes; | |
434 | void __user *addr; | |
435 | ||
436 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
437 | return -EFAULT; | |
438 | count = req32.count; | |
439 | list32 = (void __user *)(unsigned long)req32.list; | |
440 | ||
441 | if (count < 0) | |
442 | return -EINVAL; | |
ff4135ae | 443 | nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub); |
9a186645 | 444 | request = compat_alloc_user_space(nbytes); |
1f96beec | 445 | if (!request) |
9a186645 | 446 | return -EFAULT; |
ff4135ae | 447 | list = (struct drm_buf_pub *) (request + 1); |
9a186645 DA |
448 | |
449 | if (__put_user(count, &request->count) | |
450 | || __put_user(list, &request->list)) | |
451 | return -EFAULT; | |
452 | ||
ed8b6704 | 453 | err = drm_ioctl(file, DRM_IOCTL_MAP_BUFS, (unsigned long)request); |
9a186645 DA |
454 | if (err) |
455 | return err; | |
456 | ||
457 | if (__get_user(actual, &request->count)) | |
458 | return -EFAULT; | |
459 | if (count >= actual) | |
460 | for (i = 0; i < actual; ++i) | |
461 | if (__copy_in_user(&list32[i], &list[i], | |
ff4135ae | 462 | offsetof(struct drm_buf_pub, address)) |
9a186645 | 463 | || __get_user(addr, &list[i].address) |
b5e89ed5 | 464 | || __put_user((unsigned long)addr, |
9a186645 DA |
465 | &list32[i].address)) |
466 | return -EFAULT; | |
467 | ||
468 | if (__put_user(actual, &argp->count) | |
469 | || __get_user(addr, &request->virtual) | |
b5e89ed5 | 470 | || __put_user((unsigned long)addr, &argp->virtual)) |
9a186645 DA |
471 | return -EFAULT; |
472 | ||
473 | return 0; | |
474 | } | |
475 | ||
476 | typedef struct drm_buf_free32 { | |
b5e89ed5 DA |
477 | int count; |
478 | u32 list; | |
9a186645 DA |
479 | } drm_buf_free32_t; |
480 | ||
481 | static int compat_drm_freebufs(struct file *file, unsigned int cmd, | |
482 | unsigned long arg) | |
483 | { | |
484 | drm_buf_free32_t req32; | |
8c9e4cfb | 485 | struct drm_buf_free request; |
9a186645 DA |
486 | drm_buf_free32_t __user *argp = (void __user *)arg; |
487 | ||
488 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
489 | return -EFAULT; | |
490 | ||
8c9e4cfb AV |
491 | request.count = req32.count; |
492 | request.list = compat_ptr(req32.list); | |
493 | return drm_ioctl_kernel(file, drm_legacy_freebufs, &request, DRM_AUTH); | |
9a186645 DA |
494 | } |
495 | ||
496 | typedef struct drm_ctx_priv_map32 { | |
b5e89ed5 DA |
497 | unsigned int ctx_id; /**< Context requesting private mapping */ |
498 | u32 handle; /**< Handle of map */ | |
9a186645 DA |
499 | } drm_ctx_priv_map32_t; |
500 | ||
501 | static int compat_drm_setsareactx(struct file *file, unsigned int cmd, | |
502 | unsigned long arg) | |
503 | { | |
504 | drm_ctx_priv_map32_t req32; | |
7900c600 | 505 | struct drm_ctx_priv_map request; |
9a186645 DA |
506 | drm_ctx_priv_map32_t __user *argp = (void __user *)arg; |
507 | ||
508 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
509 | return -EFAULT; | |
510 | ||
7900c600 AV |
511 | request.ctx_id = req32.ctx_id; |
512 | request.handle = compat_ptr(req32.handle); | |
513 | return drm_ioctl_kernel(file, drm_legacy_setsareactx, &request, | |
514 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
515 | } |
516 | ||
517 | static int compat_drm_getsareactx(struct file *file, unsigned int cmd, | |
518 | unsigned long arg) | |
519 | { | |
d7631e30 AV |
520 | struct drm_ctx_priv_map req; |
521 | drm_ctx_priv_map32_t req32; | |
9a186645 DA |
522 | drm_ctx_priv_map32_t __user *argp = (void __user *)arg; |
523 | int err; | |
9a186645 | 524 | |
d7631e30 | 525 | if (copy_from_user(&req32, argp, sizeof(req32))) |
9a186645 DA |
526 | return -EFAULT; |
527 | ||
d7631e30 AV |
528 | req.ctx_id = req32.ctx_id; |
529 | err = drm_ioctl_kernel(file, drm_legacy_getsareactx, &req, DRM_AUTH); | |
9a186645 DA |
530 | if (err) |
531 | return err; | |
532 | ||
d7631e30 AV |
533 | req32.handle = ptr_to_compat(req.handle); |
534 | if (copy_to_user(argp, &req32, sizeof(req32))) | |
9a186645 DA |
535 | return -EFAULT; |
536 | ||
537 | return 0; | |
538 | } | |
539 | ||
540 | typedef struct drm_ctx_res32 { | |
b5e89ed5 DA |
541 | int count; |
542 | u32 contexts; | |
9a186645 DA |
543 | } drm_ctx_res32_t; |
544 | ||
545 | static int compat_drm_resctx(struct file *file, unsigned int cmd, | |
546 | unsigned long arg) | |
547 | { | |
548 | drm_ctx_res32_t __user *argp = (void __user *)arg; | |
549 | drm_ctx_res32_t res32; | |
9e075680 | 550 | struct drm_ctx_res res; |
9a186645 DA |
551 | int err; |
552 | ||
553 | if (copy_from_user(&res32, argp, sizeof(res32))) | |
554 | return -EFAULT; | |
555 | ||
9e075680 AV |
556 | res.count = res32.count; |
557 | res.contexts = compat_ptr(res32.contexts); | |
558 | err = drm_ioctl_kernel(file, drm_legacy_resctx, &res, DRM_AUTH); | |
9a186645 DA |
559 | if (err) |
560 | return err; | |
561 | ||
9e075680 AV |
562 | res32.count = res.count; |
563 | if (copy_to_user(argp, &res32, sizeof(res32))) | |
9a186645 DA |
564 | return -EFAULT; |
565 | ||
566 | return 0; | |
567 | } | |
568 | ||
569 | typedef struct drm_dma32 { | |
b5e89ed5 DA |
570 | int context; /**< Context handle */ |
571 | int send_count; /**< Number of buffers to send */ | |
572 | u32 send_indices; /**< List of handles to buffers */ | |
573 | u32 send_sizes; /**< Lengths of data to send */ | |
ff4135ae | 574 | enum drm_dma_flags flags; /**< Flags */ |
b5e89ed5 DA |
575 | int request_count; /**< Number of buffers requested */ |
576 | int request_size; /**< Desired size for buffers */ | |
577 | u32 request_indices; /**< Buffer information */ | |
578 | u32 request_sizes; | |
579 | int granted_count; /**< Number of buffers granted */ | |
9a186645 DA |
580 | } drm_dma32_t; |
581 | ||
582 | static int compat_drm_dma(struct file *file, unsigned int cmd, | |
583 | unsigned long arg) | |
584 | { | |
585 | drm_dma32_t d32; | |
b5e89ed5 | 586 | drm_dma32_t __user *argp = (void __user *)arg; |
c6f08966 | 587 | struct drm_dma d; |
9a186645 DA |
588 | int err; |
589 | ||
590 | if (copy_from_user(&d32, argp, sizeof(d32))) | |
591 | return -EFAULT; | |
592 | ||
c6f08966 AV |
593 | d.context = d32.context; |
594 | d.send_count = d32.send_count; | |
595 | d.send_indices = compat_ptr(d32.send_indices); | |
596 | d.send_sizes = compat_ptr(d32.send_sizes); | |
597 | d.flags = d32.flags; | |
598 | d.request_count = d32.request_count; | |
599 | d.request_indices = compat_ptr(d32.request_indices); | |
600 | d.request_sizes = compat_ptr(d32.request_sizes); | |
601 | err = drm_ioctl_kernel(file, drm_legacy_dma_ioctl, &d, DRM_AUTH); | |
9a186645 DA |
602 | if (err) |
603 | return err; | |
604 | ||
c6f08966 AV |
605 | if (put_user(d.request_size, &argp->request_size) |
606 | || put_user(d.granted_count, &argp->granted_count)) | |
9a186645 DA |
607 | return -EFAULT; |
608 | ||
609 | return 0; | |
610 | } | |
611 | ||
a7fb8a23 | 612 | #if IS_ENABLED(CONFIG_AGP) |
9a186645 DA |
613 | typedef struct drm_agp_mode32 { |
614 | u32 mode; /**< AGP mode */ | |
615 | } drm_agp_mode32_t; | |
616 | ||
617 | static int compat_drm_agp_enable(struct file *file, unsigned int cmd, | |
618 | unsigned long arg) | |
619 | { | |
620 | drm_agp_mode32_t __user *argp = (void __user *)arg; | |
e92673ed | 621 | struct drm_agp_mode mode; |
9a186645 | 622 | |
e92673ed | 623 | if (get_user(mode.mode, &argp->mode)) |
9a186645 DA |
624 | return -EFAULT; |
625 | ||
e92673ed AV |
626 | return drm_ioctl_kernel(file, drm_agp_enable_ioctl, &mode, |
627 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
628 | } |
629 | ||
630 | typedef struct drm_agp_info32 { | |
b5e89ed5 DA |
631 | int agp_version_major; |
632 | int agp_version_minor; | |
633 | u32 mode; | |
634 | u32 aperture_base; /* physical address */ | |
635 | u32 aperture_size; /* bytes */ | |
636 | u32 memory_allowed; /* bytes */ | |
637 | u32 memory_used; | |
638 | ||
639 | /* PCI information */ | |
9a186645 DA |
640 | unsigned short id_vendor; |
641 | unsigned short id_device; | |
642 | } drm_agp_info32_t; | |
643 | ||
644 | static int compat_drm_agp_info(struct file *file, unsigned int cmd, | |
645 | unsigned long arg) | |
646 | { | |
647 | drm_agp_info32_t __user *argp = (void __user *)arg; | |
648 | drm_agp_info32_t i32; | |
e92673ed | 649 | struct drm_agp_info info; |
9a186645 DA |
650 | int err; |
651 | ||
e92673ed | 652 | err = drm_ioctl_kernel(file, drm_agp_info_ioctl, &info, DRM_AUTH); |
9a186645 DA |
653 | if (err) |
654 | return err; | |
655 | ||
e92673ed AV |
656 | i32.agp_version_major = info.agp_version_major; |
657 | i32.agp_version_minor = info.agp_version_minor; | |
658 | i32.mode = info.mode; | |
659 | i32.aperture_base = info.aperture_base; | |
660 | i32.aperture_size = info.aperture_size; | |
661 | i32.memory_allowed = info.memory_allowed; | |
662 | i32.memory_used = info.memory_used; | |
663 | i32.id_vendor = info.id_vendor; | |
664 | i32.id_device = info.id_device; | |
9a186645 DA |
665 | if (copy_to_user(argp, &i32, sizeof(i32))) |
666 | return -EFAULT; | |
667 | ||
668 | return 0; | |
669 | } | |
670 | ||
671 | typedef struct drm_agp_buffer32 { | |
672 | u32 size; /**< In bytes -- will round to page boundary */ | |
673 | u32 handle; /**< Used for binding / unbinding */ | |
674 | u32 type; /**< Type of memory to allocate */ | |
b5e89ed5 | 675 | u32 physical; /**< Physical used by i810 */ |
9a186645 DA |
676 | } drm_agp_buffer32_t; |
677 | ||
678 | static int compat_drm_agp_alloc(struct file *file, unsigned int cmd, | |
679 | unsigned long arg) | |
680 | { | |
681 | drm_agp_buffer32_t __user *argp = (void __user *)arg; | |
682 | drm_agp_buffer32_t req32; | |
e92673ed | 683 | struct drm_agp_buffer request; |
9a186645 DA |
684 | int err; |
685 | ||
686 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
687 | return -EFAULT; | |
688 | ||
e92673ed AV |
689 | request.size = req32.size; |
690 | request.type = req32.type; | |
691 | err = drm_ioctl_kernel(file, drm_agp_alloc_ioctl, &request, | |
692 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
693 | if (err) |
694 | return err; | |
695 | ||
e92673ed AV |
696 | req32.handle = request.handle; |
697 | req32.physical = request.physical; | |
698 | if (copy_to_user(argp, &req32, sizeof(req32))) { | |
699 | drm_ioctl_kernel(file, drm_agp_free_ioctl, &request, | |
700 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
701 | return -EFAULT; |
702 | } | |
703 | ||
704 | return 0; | |
705 | } | |
706 | ||
707 | static int compat_drm_agp_free(struct file *file, unsigned int cmd, | |
708 | unsigned long arg) | |
709 | { | |
710 | drm_agp_buffer32_t __user *argp = (void __user *)arg; | |
e92673ed | 711 | struct drm_agp_buffer request; |
9a186645 | 712 | |
e92673ed | 713 | if (get_user(request.handle, &argp->handle)) |
9a186645 DA |
714 | return -EFAULT; |
715 | ||
e92673ed AV |
716 | return drm_ioctl_kernel(file, drm_agp_free_ioctl, &request, |
717 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
718 | } |
719 | ||
720 | typedef struct drm_agp_binding32 { | |
721 | u32 handle; /**< From drm_agp_buffer */ | |
722 | u32 offset; /**< In bytes -- will round to page boundary */ | |
723 | } drm_agp_binding32_t; | |
724 | ||
725 | static int compat_drm_agp_bind(struct file *file, unsigned int cmd, | |
726 | unsigned long arg) | |
727 | { | |
728 | drm_agp_binding32_t __user *argp = (void __user *)arg; | |
729 | drm_agp_binding32_t req32; | |
e92673ed | 730 | struct drm_agp_binding request; |
9a186645 DA |
731 | |
732 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
733 | return -EFAULT; | |
734 | ||
e92673ed AV |
735 | request.handle = req32.handle; |
736 | request.offset = req32.offset; | |
737 | return drm_ioctl_kernel(file, drm_agp_bind_ioctl, &request, | |
738 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
739 | } |
740 | ||
741 | static int compat_drm_agp_unbind(struct file *file, unsigned int cmd, | |
742 | unsigned long arg) | |
743 | { | |
744 | drm_agp_binding32_t __user *argp = (void __user *)arg; | |
e92673ed | 745 | struct drm_agp_binding request; |
9a186645 | 746 | |
e92673ed | 747 | if (get_user(request.handle, &argp->handle)) |
9a186645 DA |
748 | return -EFAULT; |
749 | ||
e92673ed AV |
750 | return drm_ioctl_kernel(file, drm_agp_unbind_ioctl, &request, |
751 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 | 752 | } |
a7fb8a23 | 753 | #endif /* CONFIG_AGP */ |
9a186645 DA |
754 | |
755 | typedef struct drm_scatter_gather32 { | |
756 | u32 size; /**< In bytes -- will round to page boundary */ | |
757 | u32 handle; /**< Used for mapping / unmapping */ | |
758 | } drm_scatter_gather32_t; | |
759 | ||
760 | static int compat_drm_sg_alloc(struct file *file, unsigned int cmd, | |
761 | unsigned long arg) | |
762 | { | |
763 | drm_scatter_gather32_t __user *argp = (void __user *)arg; | |
314ed736 | 764 | struct drm_scatter_gather request; |
9a186645 | 765 | int err; |
9a186645 | 766 | |
314ed736 | 767 | if (get_user(request.size, &argp->size)) |
9a186645 DA |
768 | return -EFAULT; |
769 | ||
314ed736 AV |
770 | err = drm_ioctl_kernel(file, drm_legacy_sg_alloc, &request, |
771 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
772 | if (err) |
773 | return err; | |
774 | ||
775 | /* XXX not sure about the handle conversion here... */ | |
314ed736 | 776 | if (put_user(request.handle >> PAGE_SHIFT, &argp->handle)) |
9a186645 DA |
777 | return -EFAULT; |
778 | ||
779 | return 0; | |
780 | } | |
781 | ||
782 | static int compat_drm_sg_free(struct file *file, unsigned int cmd, | |
783 | unsigned long arg) | |
784 | { | |
785 | drm_scatter_gather32_t __user *argp = (void __user *)arg; | |
314ed736 | 786 | struct drm_scatter_gather request; |
9a186645 DA |
787 | unsigned long x; |
788 | ||
314ed736 | 789 | if (get_user(x, &argp->handle)) |
9a186645 | 790 | return -EFAULT; |
314ed736 AV |
791 | request.handle = x << PAGE_SHIFT; |
792 | return drm_ioctl_kernel(file, drm_legacy_sg_free, &request, | |
793 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
794 | } |
795 | ||
09e40d65 | 796 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
49568873 EA |
797 | typedef struct drm_update_draw32 { |
798 | drm_drawable_t handle; | |
799 | unsigned int type; | |
800 | unsigned int num; | |
801 | /* 64-bit version has a 32-bit pad here */ | |
802 | u64 data; /**< Pointer */ | |
803 | } __attribute__((packed)) drm_update_draw32_t; | |
804 | ||
805 | static int compat_drm_update_draw(struct file *file, unsigned int cmd, | |
806 | unsigned long arg) | |
807 | { | |
808 | drm_update_draw32_t update32; | |
809 | struct drm_update_draw __user *request; | |
810 | int err; | |
811 | ||
812 | if (copy_from_user(&update32, (void __user *)arg, sizeof(update32))) | |
813 | return -EFAULT; | |
814 | ||
815 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 816 | if (!request || |
49568873 EA |
817 | __put_user(update32.handle, &request->handle) || |
818 | __put_user(update32.type, &request->type) || | |
819 | __put_user(update32.num, &request->num) || | |
820 | __put_user(update32.data, &request->data)) | |
821 | return -EFAULT; | |
822 | ||
ed8b6704 | 823 | err = drm_ioctl(file, DRM_IOCTL_UPDATE_DRAW, (unsigned long)request); |
49568873 EA |
824 | return err; |
825 | } | |
09e40d65 | 826 | #endif |
49568873 | 827 | |
9a186645 | 828 | struct drm_wait_vblank_request32 { |
ff4135ae | 829 | enum drm_vblank_seq_type type; |
9a186645 DA |
830 | unsigned int sequence; |
831 | u32 signal; | |
832 | }; | |
833 | ||
834 | struct drm_wait_vblank_reply32 { | |
ff4135ae | 835 | enum drm_vblank_seq_type type; |
9a186645 DA |
836 | unsigned int sequence; |
837 | s32 tval_sec; | |
838 | s32 tval_usec; | |
839 | }; | |
840 | ||
841 | typedef union drm_wait_vblank32 { | |
842 | struct drm_wait_vblank_request32 request; | |
843 | struct drm_wait_vblank_reply32 reply; | |
844 | } drm_wait_vblank32_t; | |
845 | ||
846 | static int compat_drm_wait_vblank(struct file *file, unsigned int cmd, | |
847 | unsigned long arg) | |
848 | { | |
849 | drm_wait_vblank32_t __user *argp = (void __user *)arg; | |
850 | drm_wait_vblank32_t req32; | |
ff4135ae | 851 | union drm_wait_vblank __user *request; |
9a186645 DA |
852 | int err; |
853 | ||
854 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
855 | return -EFAULT; | |
856 | ||
857 | request = compat_alloc_user_space(sizeof(*request)); | |
1f96beec | 858 | if (!request |
9a186645 DA |
859 | || __put_user(req32.request.type, &request->request.type) |
860 | || __put_user(req32.request.sequence, &request->request.sequence) | |
861 | || __put_user(req32.request.signal, &request->request.signal)) | |
862 | return -EFAULT; | |
863 | ||
ed8b6704 | 864 | err = drm_ioctl(file, DRM_IOCTL_WAIT_VBLANK, (unsigned long)request); |
9a186645 DA |
865 | if (err) |
866 | return err; | |
867 | ||
868 | if (__get_user(req32.reply.type, &request->reply.type) | |
869 | || __get_user(req32.reply.sequence, &request->reply.sequence) | |
870 | || __get_user(req32.reply.tval_sec, &request->reply.tval_sec) | |
871 | || __get_user(req32.reply.tval_usec, &request->reply.tval_usec)) | |
872 | return -EFAULT; | |
873 | ||
874 | if (copy_to_user(argp, &req32, sizeof(req32))) | |
875 | return -EFAULT; | |
876 | ||
877 | return 0; | |
878 | } | |
879 | ||
a988588b | 880 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
c631d5f9 TU |
881 | typedef struct drm_mode_fb_cmd232 { |
882 | u32 fb_id; | |
883 | u32 width; | |
884 | u32 height; | |
885 | u32 pixel_format; | |
886 | u32 flags; | |
887 | u32 handles[4]; | |
888 | u32 pitches[4]; | |
889 | u32 offsets[4]; | |
890 | u64 modifier[4]; | |
891 | } __attribute__((packed)) drm_mode_fb_cmd232_t; | |
892 | ||
893 | static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd, | |
894 | unsigned long arg) | |
895 | { | |
896 | struct drm_mode_fb_cmd232 __user *argp = (void __user *)arg; | |
897 | struct drm_mode_fb_cmd232 req32; | |
898 | struct drm_mode_fb_cmd2 __user *req64; | |
899 | int i; | |
900 | int err; | |
901 | ||
902 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
903 | return -EFAULT; | |
904 | ||
905 | req64 = compat_alloc_user_space(sizeof(*req64)); | |
906 | ||
907 | if (!access_ok(VERIFY_WRITE, req64, sizeof(*req64)) | |
908 | || __put_user(req32.width, &req64->width) | |
909 | || __put_user(req32.height, &req64->height) | |
910 | || __put_user(req32.pixel_format, &req64->pixel_format) | |
911 | || __put_user(req32.flags, &req64->flags)) | |
912 | return -EFAULT; | |
913 | ||
914 | for (i = 0; i < 4; i++) { | |
915 | if (__put_user(req32.handles[i], &req64->handles[i])) | |
916 | return -EFAULT; | |
917 | if (__put_user(req32.pitches[i], &req64->pitches[i])) | |
918 | return -EFAULT; | |
919 | if (__put_user(req32.offsets[i], &req64->offsets[i])) | |
920 | return -EFAULT; | |
921 | if (__put_user(req32.modifier[i], &req64->modifier[i])) | |
922 | return -EFAULT; | |
923 | } | |
924 | ||
925 | err = drm_ioctl(file, DRM_IOCTL_MODE_ADDFB2, (unsigned long)req64); | |
926 | if (err) | |
927 | return err; | |
928 | ||
929 | if (__get_user(req32.fb_id, &req64->fb_id)) | |
930 | return -EFAULT; | |
931 | ||
932 | if (copy_to_user(argp, &req32, sizeof(req32))) | |
933 | return -EFAULT; | |
934 | ||
935 | return 0; | |
936 | } | |
a988588b | 937 | #endif |
c631d5f9 | 938 | |
9f43e542 AV |
939 | static struct { |
940 | drm_ioctl_compat_t *fn; | |
941 | char *name; | |
942 | } drm_compat_ioctls[] = { | |
ff22ff9e | 943 | #define DRM_IOCTL32_DEF(n, f) [DRM_IOCTL_NR(n##32)] = {.fn = f, .name = #n} |
012c6741 | 944 | DRM_IOCTL32_DEF(DRM_IOCTL_VERSION, compat_drm_version), |
17e3dade | 945 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_UNIQUE, compat_drm_getunique), |
8c4fe499 | 946 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_MAP, compat_drm_getmap), |
9e92662d | 947 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_CLIENT, compat_drm_getclient), |
8547ee9d | 948 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_STATS, compat_drm_getstats), |
56c275cc | 949 | DRM_IOCTL32_DEF(DRM_IOCTL_SET_UNIQUE, compat_drm_setunique), |
b36180a3 | 950 | DRM_IOCTL32_DEF(DRM_IOCTL_ADD_MAP, compat_drm_addmap), |
ff22ff9e | 951 | DRM_IOCTL32_DEF(DRM_IOCTL_ADD_BUFS, compat_drm_addbufs), |
dbae740e | 952 | DRM_IOCTL32_DEF(DRM_IOCTL_MARK_BUFS, compat_drm_markbufs), |
5c7640ab | 953 | DRM_IOCTL32_DEF(DRM_IOCTL_INFO_BUFS, compat_drm_infobufs), |
9f43e542 | 954 | [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)].fn = compat_drm_mapbufs, |
8c9e4cfb | 955 | DRM_IOCTL32_DEF(DRM_IOCTL_FREE_BUFS, compat_drm_freebufs), |
9f43e542 | 956 | [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)].fn = compat_drm_rmmap, |
7900c600 | 957 | DRM_IOCTL32_DEF(DRM_IOCTL_SET_SAREA_CTX, compat_drm_setsareactx), |
d7631e30 | 958 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_SAREA_CTX, compat_drm_getsareactx), |
9e075680 | 959 | DRM_IOCTL32_DEF(DRM_IOCTL_RES_CTX, compat_drm_resctx), |
c6f08966 | 960 | DRM_IOCTL32_DEF(DRM_IOCTL_DMA, compat_drm_dma), |
a7fb8a23 | 961 | #if IS_ENABLED(CONFIG_AGP) |
e92673ed AV |
962 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_ENABLE, compat_drm_agp_enable), |
963 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_INFO, compat_drm_agp_info), | |
964 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_ALLOC, compat_drm_agp_alloc), | |
965 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_FREE, compat_drm_agp_free), | |
966 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_BIND, compat_drm_agp_bind), | |
967 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_UNBIND, compat_drm_agp_unbind), | |
9a186645 | 968 | #endif |
314ed736 AV |
969 | DRM_IOCTL32_DEF(DRM_IOCTL_SG_ALLOC, compat_drm_sg_alloc), |
970 | DRM_IOCTL32_DEF(DRM_IOCTL_SG_FREE, compat_drm_sg_free), | |
09e40d65 | 971 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
9f43e542 | 972 | [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW32)].fn = compat_drm_update_draw, |
09e40d65 | 973 | #endif |
9f43e542 | 974 | [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)].fn = compat_drm_wait_vblank, |
a988588b | 975 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
9f43e542 | 976 | [DRM_IOCTL_NR(DRM_IOCTL_MODE_ADDFB232)].fn = compat_drm_mode_addfb2, |
a988588b | 977 | #endif |
9a186645 DA |
978 | }; |
979 | ||
980 | /** | |
2640981f DV |
981 | * drm_compat_ioctl - 32bit IOCTL compatibility handler for DRM drivers |
982 | * @filp: file this ioctl is called on | |
983 | * @cmd: ioctl cmd number | |
984 | * @arg: user argument | |
985 | * | |
986 | * Compatibility handler for 32 bit userspace running on 64 kernels. All actual | |
987 | * IOCTL handling is forwarded to drm_ioctl(), while marshalling structures as | |
988 | * appropriate. Note that this only handles DRM core IOCTLs, if the driver has | |
989 | * botched IOCTL itself, it must handle those by wrapping this function. | |
9a186645 | 990 | * |
2640981f DV |
991 | * Returns: |
992 | * Zero on success, negative error code on failure. | |
9a186645 DA |
993 | */ |
994 | long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) | |
995 | { | |
996 | unsigned int nr = DRM_IOCTL_NR(cmd); | |
997 | drm_ioctl_compat_t *fn; | |
998 | int ret; | |
999 | ||
7ffa05e0 IR |
1000 | /* Assume that ioctls without an explicit compat routine will just |
1001 | * work. This may not always be a good assumption, but it's better | |
1002 | * than always failing. | |
1003 | */ | |
3d77461e | 1004 | if (nr >= ARRAY_SIZE(drm_compat_ioctls)) |
ed8b6704 | 1005 | return drm_ioctl(filp, cmd, arg); |
9a186645 | 1006 | |
9f43e542 AV |
1007 | fn = drm_compat_ioctls[nr].fn; |
1008 | if (!fn) | |
1009 | return drm_ioctl(filp, cmd, arg); | |
9a186645 | 1010 | |
9f43e542 AV |
1011 | if (drm_compat_ioctls[nr].name) { |
1012 | struct drm_file *file_priv = filp->private_data; | |
1013 | DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n", | |
1014 | task_pid_nr(current), | |
1015 | (long)old_encode_dev(file_priv->minor->kdev->devt), | |
1016 | file_priv->authenticated, | |
1017 | drm_compat_ioctls[nr].name); | |
b5e89ed5 | 1018 | ret = (*fn) (filp, cmd, arg); |
9f43e542 AV |
1019 | if (ret) |
1020 | DRM_DEBUG("ret = %d\n", ret); | |
1021 | } else { | |
1022 | ret = (*fn) (filp, cmd, arg); | |
1023 | } | |
9a186645 DA |
1024 | return ret; |
1025 | } | |
1026 | EXPORT_SYMBOL(drm_compat_ioctl); |