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" |
d6c56613 | 37 | #include "drm_crtc_internal.h" |
9a186645 DA |
38 | |
39 | #define DRM_IOCTL_VERSION32 DRM_IOWR(0x00, drm_version32_t) | |
40 | #define DRM_IOCTL_GET_UNIQUE32 DRM_IOWR(0x01, drm_unique32_t) | |
41 | #define DRM_IOCTL_GET_MAP32 DRM_IOWR(0x04, drm_map32_t) | |
42 | #define DRM_IOCTL_GET_CLIENT32 DRM_IOWR(0x05, drm_client32_t) | |
43 | #define DRM_IOCTL_GET_STATS32 DRM_IOR( 0x06, drm_stats32_t) | |
44 | ||
45 | #define DRM_IOCTL_SET_UNIQUE32 DRM_IOW( 0x10, drm_unique32_t) | |
46 | #define DRM_IOCTL_ADD_MAP32 DRM_IOWR(0x15, drm_map32_t) | |
47 | #define DRM_IOCTL_ADD_BUFS32 DRM_IOWR(0x16, drm_buf_desc32_t) | |
48 | #define DRM_IOCTL_MARK_BUFS32 DRM_IOW( 0x17, drm_buf_desc32_t) | |
49 | #define DRM_IOCTL_INFO_BUFS32 DRM_IOWR(0x18, drm_buf_info32_t) | |
50 | #define DRM_IOCTL_MAP_BUFS32 DRM_IOWR(0x19, drm_buf_map32_t) | |
51 | #define DRM_IOCTL_FREE_BUFS32 DRM_IOW( 0x1a, drm_buf_free32_t) | |
52 | ||
53 | #define DRM_IOCTL_RM_MAP32 DRM_IOW( 0x1b, drm_map32_t) | |
54 | ||
55 | #define DRM_IOCTL_SET_SAREA_CTX32 DRM_IOW( 0x1c, drm_ctx_priv_map32_t) | |
56 | #define DRM_IOCTL_GET_SAREA_CTX32 DRM_IOWR(0x1d, drm_ctx_priv_map32_t) | |
57 | ||
58 | #define DRM_IOCTL_RES_CTX32 DRM_IOWR(0x26, drm_ctx_res32_t) | |
59 | #define DRM_IOCTL_DMA32 DRM_IOWR(0x29, drm_dma32_t) | |
60 | ||
61 | #define DRM_IOCTL_AGP_ENABLE32 DRM_IOW( 0x32, drm_agp_mode32_t) | |
62 | #define DRM_IOCTL_AGP_INFO32 DRM_IOR( 0x33, drm_agp_info32_t) | |
63 | #define DRM_IOCTL_AGP_ALLOC32 DRM_IOWR(0x34, drm_agp_buffer32_t) | |
64 | #define DRM_IOCTL_AGP_FREE32 DRM_IOW( 0x35, drm_agp_buffer32_t) | |
65 | #define DRM_IOCTL_AGP_BIND32 DRM_IOW( 0x36, drm_agp_binding32_t) | |
66 | #define DRM_IOCTL_AGP_UNBIND32 DRM_IOW( 0x37, drm_agp_binding32_t) | |
67 | ||
68 | #define DRM_IOCTL_SG_ALLOC32 DRM_IOW( 0x38, drm_scatter_gather32_t) | |
69 | #define DRM_IOCTL_SG_FREE32 DRM_IOW( 0x39, drm_scatter_gather32_t) | |
70 | ||
49568873 EA |
71 | #define DRM_IOCTL_UPDATE_DRAW32 DRM_IOW( 0x3f, drm_update_draw32_t) |
72 | ||
9a186645 DA |
73 | #define DRM_IOCTL_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_t) |
74 | ||
c631d5f9 TU |
75 | #define DRM_IOCTL_MODE_ADDFB232 DRM_IOWR(0xb8, drm_mode_fb_cmd232_t) |
76 | ||
9a186645 | 77 | typedef struct drm_version_32 { |
2640981f DV |
78 | int version_major; /* Major version */ |
79 | int version_minor; /* Minor version */ | |
80 | int version_patchlevel; /* Patch level */ | |
81 | u32 name_len; /* Length of name buffer */ | |
82 | u32 name; /* Name of driver */ | |
83 | u32 date_len; /* Length of date buffer */ | |
84 | u32 date; /* User-space buffer to hold date */ | |
85 | u32 desc_len; /* Length of desc buffer */ | |
86 | u32 desc; /* User-space buffer to hold desc */ | |
9a186645 DA |
87 | } drm_version32_t; |
88 | ||
89 | static int compat_drm_version(struct file *file, unsigned int cmd, | |
90 | unsigned long arg) | |
91 | { | |
92 | drm_version32_t v32; | |
012c6741 | 93 | struct drm_version v; |
9a186645 DA |
94 | int err; |
95 | ||
b5e89ed5 | 96 | if (copy_from_user(&v32, (void __user *)arg, sizeof(v32))) |
9a186645 DA |
97 | return -EFAULT; |
98 | ||
012c6741 AV |
99 | v = (struct drm_version) { |
100 | .name_len = v32.name_len, | |
101 | .name = compat_ptr(v32.name), | |
102 | .date_len = v32.date_len, | |
103 | .date = compat_ptr(v32.date), | |
104 | .desc_len = v32.desc_len, | |
105 | .desc = compat_ptr(v32.desc), | |
106 | }; | |
107 | err = drm_ioctl_kernel(file, drm_version, &v, | |
108 | DRM_UNLOCKED|DRM_RENDER_ALLOW|DRM_CONTROL_ALLOW); | |
9a186645 DA |
109 | if (err) |
110 | return err; | |
111 | ||
012c6741 AV |
112 | v32.version_major = v.version_major; |
113 | v32.version_minor = v.version_minor; | |
114 | v32.version_patchlevel = v.version_patchlevel; | |
266530b3 JC |
115 | v32.name_len = v.name_len; |
116 | v32.date_len = v.date_len; | |
117 | v32.desc_len = v.desc_len; | |
b5e89ed5 | 118 | if (copy_to_user((void __user *)arg, &v32, sizeof(v32))) |
9a186645 DA |
119 | return -EFAULT; |
120 | return 0; | |
121 | } | |
122 | ||
123 | typedef struct drm_unique32 { | |
2640981f DV |
124 | u32 unique_len; /* Length of unique */ |
125 | u32 unique; /* Unique name for driver instantiation */ | |
9a186645 DA |
126 | } drm_unique32_t; |
127 | ||
128 | static int compat_drm_getunique(struct file *file, unsigned int cmd, | |
129 | unsigned long arg) | |
130 | { | |
131 | drm_unique32_t uq32; | |
17e3dade | 132 | struct drm_unique uq; |
9a186645 DA |
133 | int err; |
134 | ||
b5e89ed5 | 135 | if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32))) |
9a186645 | 136 | return -EFAULT; |
17e3dade AV |
137 | uq = (struct drm_unique){ |
138 | .unique_len = uq32.unique_len, | |
139 | .unique = compat_ptr(uq32.unique), | |
140 | }; | |
9a186645 | 141 | |
17e3dade | 142 | err = drm_ioctl_kernel(file, drm_getunique, &uq, DRM_UNLOCKED); |
9a186645 DA |
143 | if (err) |
144 | return err; | |
145 | ||
17e3dade | 146 | uq32.unique_len = uq.unique_len; |
b5e89ed5 | 147 | if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32))) |
9a186645 DA |
148 | return -EFAULT; |
149 | return 0; | |
150 | } | |
151 | ||
152 | static int compat_drm_setunique(struct file *file, unsigned int cmd, | |
153 | unsigned long arg) | |
154 | { | |
56c275cc AV |
155 | /* it's dead */ |
156 | return -EINVAL; | |
9a186645 DA |
157 | } |
158 | ||
159 | typedef struct drm_map32 { | |
2640981f DV |
160 | u32 offset; /* Requested physical address (0 for SAREA) */ |
161 | u32 size; /* Requested physical size (bytes) */ | |
162 | enum drm_map_type type; /* Type of memory to map */ | |
163 | enum drm_map_flags flags; /* Flags */ | |
164 | u32 handle; /* User-space: "Handle" to pass to mmap() */ | |
165 | int mtrr; /* MTRR slot used */ | |
9a186645 DA |
166 | } drm_map32_t; |
167 | ||
168 | static int compat_drm_getmap(struct file *file, unsigned int cmd, | |
169 | unsigned long arg) | |
170 | { | |
171 | drm_map32_t __user *argp = (void __user *)arg; | |
172 | drm_map32_t m32; | |
8c4fe499 AV |
173 | struct drm_map map; |
174 | int err; | |
9a186645 | 175 | |
8c4fe499 | 176 | if (copy_from_user(&m32, argp, sizeof(m32))) |
9a186645 DA |
177 | return -EFAULT; |
178 | ||
8c4fe499 AV |
179 | map.offset = m32.offset; |
180 | err = drm_ioctl_kernel(file, drm_legacy_getmap_ioctl, &map, DRM_UNLOCKED); | |
9a186645 DA |
181 | if (err) |
182 | return err; | |
183 | ||
8c4fe499 AV |
184 | m32.offset = map.offset; |
185 | m32.size = map.size; | |
186 | m32.type = map.type; | |
187 | m32.flags = map.flags; | |
188 | m32.handle = ptr_to_compat(map.handle); | |
189 | m32.mtrr = map.mtrr; | |
9a186645 DA |
190 | if (copy_to_user(argp, &m32, sizeof(m32))) |
191 | return -EFAULT; | |
192 | return 0; | |
193 | ||
194 | } | |
195 | ||
196 | static int compat_drm_addmap(struct file *file, unsigned int cmd, | |
197 | unsigned long arg) | |
198 | { | |
199 | drm_map32_t __user *argp = (void __user *)arg; | |
200 | drm_map32_t m32; | |
b36180a3 | 201 | struct drm_map map; |
9a186645 | 202 | int err; |
9a186645 DA |
203 | |
204 | if (copy_from_user(&m32, argp, sizeof(m32))) | |
205 | return -EFAULT; | |
206 | ||
b36180a3 AV |
207 | map.offset = m32.offset; |
208 | map.size = m32.size; | |
209 | map.type = m32.type; | |
210 | map.flags = m32.flags; | |
9a186645 | 211 | |
b36180a3 AV |
212 | err = drm_ioctl_kernel(file, drm_legacy_addmap_ioctl, &map, |
213 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
214 | if (err) |
215 | return err; | |
216 | ||
b36180a3 AV |
217 | m32.offset = map.offset; |
218 | m32.mtrr = map.mtrr; | |
219 | m32.handle = ptr_to_compat(map.handle); | |
220 | if (map.handle != compat_ptr(m32.handle)) | |
499447db | 221 | pr_err_ratelimited("compat_drm_addmap truncated handle %p for type %d offset %x\n", |
b36180a3 | 222 | map.handle, m32.type, m32.offset); |
9a186645 DA |
223 | |
224 | if (copy_to_user(argp, &m32, sizeof(m32))) | |
225 | return -EFAULT; | |
226 | ||
227 | return 0; | |
228 | } | |
229 | ||
230 | static int compat_drm_rmmap(struct file *file, unsigned int cmd, | |
231 | unsigned long arg) | |
232 | { | |
233 | drm_map32_t __user *argp = (void __user *)arg; | |
6113252d | 234 | struct drm_map map; |
9a186645 DA |
235 | u32 handle; |
236 | ||
237 | if (get_user(handle, &argp->handle)) | |
238 | return -EFAULT; | |
6113252d AV |
239 | map.handle = compat_ptr(handle); |
240 | return drm_ioctl_kernel(file, drm_legacy_rmmap_ioctl, &map, DRM_AUTH); | |
9a186645 DA |
241 | } |
242 | ||
243 | typedef struct drm_client32 { | |
2640981f DV |
244 | int idx; /* Which client desired? */ |
245 | int auth; /* Is client authenticated? */ | |
246 | u32 pid; /* Process ID */ | |
247 | u32 uid; /* User ID */ | |
248 | u32 magic; /* Magic */ | |
249 | u32 iocs; /* Ioctl count */ | |
9a186645 DA |
250 | } drm_client32_t; |
251 | ||
252 | static int compat_drm_getclient(struct file *file, unsigned int cmd, | |
253 | unsigned long arg) | |
254 | { | |
255 | drm_client32_t c32; | |
256 | drm_client32_t __user *argp = (void __user *)arg; | |
9e92662d AV |
257 | struct drm_client client; |
258 | int err; | |
9a186645 | 259 | |
9e92662d | 260 | if (copy_from_user(&c32, argp, sizeof(c32))) |
9a186645 DA |
261 | return -EFAULT; |
262 | ||
9e92662d | 263 | client.idx = c32.idx; |
9a186645 | 264 | |
9e92662d | 265 | err = drm_ioctl_kernel(file, drm_getclient, &client, DRM_UNLOCKED); |
9a186645 DA |
266 | if (err) |
267 | return err; | |
268 | ||
9e92662d AV |
269 | c32.idx = client.idx; |
270 | c32.auth = client.auth; | |
271 | c32.pid = client.pid; | |
272 | c32.uid = client.uid; | |
273 | c32.magic = client.magic; | |
274 | c32.iocs = client.iocs; | |
9a186645 DA |
275 | |
276 | if (copy_to_user(argp, &c32, sizeof(c32))) | |
277 | return -EFAULT; | |
278 | return 0; | |
279 | } | |
280 | ||
281 | typedef struct drm_stats32 { | |
282 | u32 count; | |
283 | struct { | |
284 | u32 value; | |
ff4135ae | 285 | enum drm_stat_type type; |
9a186645 DA |
286 | } data[15]; |
287 | } drm_stats32_t; | |
288 | ||
289 | static int compat_drm_getstats(struct file *file, unsigned int cmd, | |
290 | unsigned long arg) | |
291 | { | |
9a186645 | 292 | drm_stats32_t __user *argp = (void __user *)arg; |
8547ee9d | 293 | int err; |
9a186645 | 294 | |
8547ee9d | 295 | err = drm_ioctl_kernel(file, drm_noop, NULL, DRM_UNLOCKED); |
9a186645 DA |
296 | if (err) |
297 | return err; | |
298 | ||
8547ee9d | 299 | if (clear_user(argp, sizeof(drm_stats32_t))) |
9a186645 DA |
300 | return -EFAULT; |
301 | return 0; | |
302 | } | |
303 | ||
304 | typedef struct drm_buf_desc32 { | |
2640981f DV |
305 | int count; /* Number of buffers of this size */ |
306 | int size; /* Size in bytes */ | |
307 | int low_mark; /* Low water mark */ | |
308 | int high_mark; /* High water mark */ | |
b5e89ed5 | 309 | int flags; |
2640981f | 310 | u32 agp_start; /* Start address in the AGP aperture */ |
9a186645 DA |
311 | } drm_buf_desc32_t; |
312 | ||
313 | static int compat_drm_addbufs(struct file *file, unsigned int cmd, | |
314 | unsigned long arg) | |
315 | { | |
316 | drm_buf_desc32_t __user *argp = (void __user *)arg; | |
ff22ff9e AV |
317 | drm_buf_desc32_t desc32; |
318 | struct drm_buf_desc desc; | |
9a186645 | 319 | int err; |
9a186645 | 320 | |
ff22ff9e | 321 | if (copy_from_user(&desc32, argp, sizeof(drm_buf_desc32_t))) |
9a186645 DA |
322 | return -EFAULT; |
323 | ||
ff22ff9e AV |
324 | desc = (struct drm_buf_desc){ |
325 | desc32.count, desc32.size, desc32.low_mark, desc32.high_mark, | |
326 | desc32.flags, desc32.agp_start | |
327 | }; | |
9a186645 | 328 | |
ff22ff9e AV |
329 | err = drm_ioctl_kernel(file, drm_legacy_addbufs, &desc, |
330 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
331 | if (err) |
332 | return err; | |
333 | ||
ff22ff9e AV |
334 | desc32 = (drm_buf_desc32_t){ |
335 | desc.count, desc.size, desc.low_mark, desc.high_mark, | |
336 | desc.flags, desc.agp_start | |
337 | }; | |
338 | if (copy_to_user(argp, &desc32, sizeof(drm_buf_desc32_t))) | |
9a186645 DA |
339 | return -EFAULT; |
340 | ||
341 | return 0; | |
342 | } | |
343 | ||
344 | static int compat_drm_markbufs(struct file *file, unsigned int cmd, | |
345 | unsigned long arg) | |
346 | { | |
347 | drm_buf_desc32_t b32; | |
348 | drm_buf_desc32_t __user *argp = (void __user *)arg; | |
b87b786b | 349 | struct drm_buf_desc buf; |
9a186645 DA |
350 | |
351 | if (copy_from_user(&b32, argp, sizeof(b32))) | |
352 | return -EFAULT; | |
353 | ||
dbae740e AV |
354 | buf.size = b32.size; |
355 | buf.low_mark = b32.low_mark; | |
356 | buf.high_mark = b32.high_mark; | |
9a186645 | 357 | |
dbae740e AV |
358 | return drm_ioctl_kernel(file, drm_legacy_markbufs, &buf, |
359 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
360 | } |
361 | ||
362 | typedef struct drm_buf_info32 { | |
b5e89ed5 DA |
363 | int count; /**< Entries in list */ |
364 | u32 list; | |
9a186645 DA |
365 | } drm_buf_info32_t; |
366 | ||
5c7640ab AV |
367 | static int copy_one_buf32(void *data, int count, struct drm_buf_entry *from) |
368 | { | |
369 | drm_buf_info32_t *request = data; | |
370 | drm_buf_desc32_t __user *to = compat_ptr(request->list); | |
371 | drm_buf_desc32_t v = {.count = from->buf_count, | |
372 | .size = from->buf_size, | |
373 | .low_mark = from->low_mark, | |
374 | .high_mark = from->high_mark}; | |
375 | return copy_to_user(to + count, &v, offsetof(drm_buf_desc32_t, flags)); | |
376 | } | |
377 | ||
378 | static int drm_legacy_infobufs32(struct drm_device *dev, void *data, | |
379 | struct drm_file *file_priv) | |
380 | { | |
381 | drm_buf_info32_t *request = data; | |
382 | return __drm_legacy_infobufs(dev, data, &request->count, copy_one_buf32); | |
383 | } | |
384 | ||
9a186645 DA |
385 | static int compat_drm_infobufs(struct file *file, unsigned int cmd, |
386 | unsigned long arg) | |
387 | { | |
388 | drm_buf_info32_t req32; | |
389 | drm_buf_info32_t __user *argp = (void __user *)arg; | |
5c7640ab | 390 | int err; |
9a186645 DA |
391 | |
392 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
393 | return -EFAULT; | |
394 | ||
5c7640ab AV |
395 | if (req32.count < 0) |
396 | req32.count = 0; | |
9a186645 | 397 | |
5c7640ab | 398 | err = drm_ioctl_kernel(file, drm_legacy_infobufs32, &req32, DRM_AUTH); |
9a186645 DA |
399 | if (err) |
400 | return err; | |
401 | ||
5c7640ab | 402 | if (put_user(req32.count, &argp->count)) |
9a186645 DA |
403 | return -EFAULT; |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
408 | typedef struct drm_buf_pub32 { | |
b5e89ed5 DA |
409 | int idx; /**< Index into the master buffer list */ |
410 | int total; /**< Buffer size */ | |
411 | int used; /**< Amount of buffer in use (for DMA) */ | |
412 | u32 address; /**< Address of buffer */ | |
9a186645 DA |
413 | } drm_buf_pub32_t; |
414 | ||
415 | typedef struct drm_buf_map32 { | |
b5e89ed5 DA |
416 | int count; /**< Length of the buffer list */ |
417 | u32 virtual; /**< Mmap'd area in user-virtual */ | |
418 | u32 list; /**< Buffer information */ | |
9a186645 DA |
419 | } drm_buf_map32_t; |
420 | ||
87d3ce11 AV |
421 | static int map_one_buf32(void *data, int idx, unsigned long virtual, |
422 | struct drm_buf *buf) | |
423 | { | |
424 | drm_buf_map32_t *request = data; | |
425 | drm_buf_pub32_t __user *to = compat_ptr(request->list) + idx; | |
426 | drm_buf_pub32_t v; | |
427 | ||
428 | v.idx = buf->idx; | |
429 | v.total = buf->total; | |
430 | v.used = 0; | |
431 | v.address = virtual + buf->offset; | |
432 | if (copy_to_user(to, &v, sizeof(v))) | |
433 | return -EFAULT; | |
434 | return 0; | |
435 | } | |
436 | ||
437 | static int drm_legacy_mapbufs32(struct drm_device *dev, void *data, | |
438 | struct drm_file *file_priv) | |
439 | { | |
440 | drm_buf_map32_t *request = data; | |
441 | void __user *v; | |
442 | int err = __drm_legacy_mapbufs(dev, data, &request->count, | |
443 | &v, map_one_buf32, | |
444 | file_priv); | |
445 | request->virtual = ptr_to_compat(v); | |
446 | return err; | |
447 | } | |
448 | ||
9a186645 DA |
449 | static int compat_drm_mapbufs(struct file *file, unsigned int cmd, |
450 | unsigned long arg) | |
451 | { | |
452 | drm_buf_map32_t __user *argp = (void __user *)arg; | |
453 | drm_buf_map32_t req32; | |
87d3ce11 | 454 | int err; |
9a186645 DA |
455 | |
456 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
457 | return -EFAULT; | |
87d3ce11 | 458 | if (req32.count < 0) |
9a186645 | 459 | return -EINVAL; |
9a186645 | 460 | |
87d3ce11 | 461 | err = drm_ioctl_kernel(file, drm_legacy_mapbufs32, &req32, DRM_AUTH); |
9a186645 DA |
462 | if (err) |
463 | return err; | |
464 | ||
87d3ce11 AV |
465 | if (put_user(req32.count, &argp->count) |
466 | || put_user(req32.virtual, &argp->virtual)) | |
9a186645 DA |
467 | return -EFAULT; |
468 | ||
469 | return 0; | |
470 | } | |
471 | ||
472 | typedef struct drm_buf_free32 { | |
b5e89ed5 DA |
473 | int count; |
474 | u32 list; | |
9a186645 DA |
475 | } drm_buf_free32_t; |
476 | ||
477 | static int compat_drm_freebufs(struct file *file, unsigned int cmd, | |
478 | unsigned long arg) | |
479 | { | |
480 | drm_buf_free32_t req32; | |
8c9e4cfb | 481 | struct drm_buf_free request; |
9a186645 DA |
482 | drm_buf_free32_t __user *argp = (void __user *)arg; |
483 | ||
484 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
485 | return -EFAULT; | |
486 | ||
8c9e4cfb AV |
487 | request.count = req32.count; |
488 | request.list = compat_ptr(req32.list); | |
489 | return drm_ioctl_kernel(file, drm_legacy_freebufs, &request, DRM_AUTH); | |
9a186645 DA |
490 | } |
491 | ||
492 | typedef struct drm_ctx_priv_map32 { | |
b5e89ed5 DA |
493 | unsigned int ctx_id; /**< Context requesting private mapping */ |
494 | u32 handle; /**< Handle of map */ | |
9a186645 DA |
495 | } drm_ctx_priv_map32_t; |
496 | ||
497 | static int compat_drm_setsareactx(struct file *file, unsigned int cmd, | |
498 | unsigned long arg) | |
499 | { | |
500 | drm_ctx_priv_map32_t req32; | |
7900c600 | 501 | struct drm_ctx_priv_map request; |
9a186645 DA |
502 | drm_ctx_priv_map32_t __user *argp = (void __user *)arg; |
503 | ||
504 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
505 | return -EFAULT; | |
506 | ||
7900c600 AV |
507 | request.ctx_id = req32.ctx_id; |
508 | request.handle = compat_ptr(req32.handle); | |
509 | return drm_ioctl_kernel(file, drm_legacy_setsareactx, &request, | |
510 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
511 | } |
512 | ||
513 | static int compat_drm_getsareactx(struct file *file, unsigned int cmd, | |
514 | unsigned long arg) | |
515 | { | |
d7631e30 AV |
516 | struct drm_ctx_priv_map req; |
517 | drm_ctx_priv_map32_t req32; | |
9a186645 DA |
518 | drm_ctx_priv_map32_t __user *argp = (void __user *)arg; |
519 | int err; | |
9a186645 | 520 | |
d7631e30 | 521 | if (copy_from_user(&req32, argp, sizeof(req32))) |
9a186645 DA |
522 | return -EFAULT; |
523 | ||
d7631e30 AV |
524 | req.ctx_id = req32.ctx_id; |
525 | err = drm_ioctl_kernel(file, drm_legacy_getsareactx, &req, DRM_AUTH); | |
9a186645 DA |
526 | if (err) |
527 | return err; | |
528 | ||
d7631e30 AV |
529 | req32.handle = ptr_to_compat(req.handle); |
530 | if (copy_to_user(argp, &req32, sizeof(req32))) | |
9a186645 DA |
531 | return -EFAULT; |
532 | ||
533 | return 0; | |
534 | } | |
535 | ||
536 | typedef struct drm_ctx_res32 { | |
b5e89ed5 DA |
537 | int count; |
538 | u32 contexts; | |
9a186645 DA |
539 | } drm_ctx_res32_t; |
540 | ||
541 | static int compat_drm_resctx(struct file *file, unsigned int cmd, | |
542 | unsigned long arg) | |
543 | { | |
544 | drm_ctx_res32_t __user *argp = (void __user *)arg; | |
545 | drm_ctx_res32_t res32; | |
9e075680 | 546 | struct drm_ctx_res res; |
9a186645 DA |
547 | int err; |
548 | ||
549 | if (copy_from_user(&res32, argp, sizeof(res32))) | |
550 | return -EFAULT; | |
551 | ||
9e075680 AV |
552 | res.count = res32.count; |
553 | res.contexts = compat_ptr(res32.contexts); | |
554 | err = drm_ioctl_kernel(file, drm_legacy_resctx, &res, DRM_AUTH); | |
9a186645 DA |
555 | if (err) |
556 | return err; | |
557 | ||
9e075680 AV |
558 | res32.count = res.count; |
559 | if (copy_to_user(argp, &res32, sizeof(res32))) | |
9a186645 DA |
560 | return -EFAULT; |
561 | ||
562 | return 0; | |
563 | } | |
564 | ||
565 | typedef struct drm_dma32 { | |
b5e89ed5 DA |
566 | int context; /**< Context handle */ |
567 | int send_count; /**< Number of buffers to send */ | |
568 | u32 send_indices; /**< List of handles to buffers */ | |
569 | u32 send_sizes; /**< Lengths of data to send */ | |
ff4135ae | 570 | enum drm_dma_flags flags; /**< Flags */ |
b5e89ed5 DA |
571 | int request_count; /**< Number of buffers requested */ |
572 | int request_size; /**< Desired size for buffers */ | |
573 | u32 request_indices; /**< Buffer information */ | |
574 | u32 request_sizes; | |
575 | int granted_count; /**< Number of buffers granted */ | |
9a186645 DA |
576 | } drm_dma32_t; |
577 | ||
578 | static int compat_drm_dma(struct file *file, unsigned int cmd, | |
579 | unsigned long arg) | |
580 | { | |
581 | drm_dma32_t d32; | |
b5e89ed5 | 582 | drm_dma32_t __user *argp = (void __user *)arg; |
c6f08966 | 583 | struct drm_dma d; |
9a186645 DA |
584 | int err; |
585 | ||
586 | if (copy_from_user(&d32, argp, sizeof(d32))) | |
587 | return -EFAULT; | |
588 | ||
c6f08966 AV |
589 | d.context = d32.context; |
590 | d.send_count = d32.send_count; | |
591 | d.send_indices = compat_ptr(d32.send_indices); | |
592 | d.send_sizes = compat_ptr(d32.send_sizes); | |
593 | d.flags = d32.flags; | |
594 | d.request_count = d32.request_count; | |
595 | d.request_indices = compat_ptr(d32.request_indices); | |
596 | d.request_sizes = compat_ptr(d32.request_sizes); | |
597 | err = drm_ioctl_kernel(file, drm_legacy_dma_ioctl, &d, DRM_AUTH); | |
9a186645 DA |
598 | if (err) |
599 | return err; | |
600 | ||
c6f08966 AV |
601 | if (put_user(d.request_size, &argp->request_size) |
602 | || put_user(d.granted_count, &argp->granted_count)) | |
9a186645 DA |
603 | return -EFAULT; |
604 | ||
605 | return 0; | |
606 | } | |
607 | ||
a7fb8a23 | 608 | #if IS_ENABLED(CONFIG_AGP) |
9a186645 DA |
609 | typedef struct drm_agp_mode32 { |
610 | u32 mode; /**< AGP mode */ | |
611 | } drm_agp_mode32_t; | |
612 | ||
613 | static int compat_drm_agp_enable(struct file *file, unsigned int cmd, | |
614 | unsigned long arg) | |
615 | { | |
616 | drm_agp_mode32_t __user *argp = (void __user *)arg; | |
e92673ed | 617 | struct drm_agp_mode mode; |
9a186645 | 618 | |
e92673ed | 619 | if (get_user(mode.mode, &argp->mode)) |
9a186645 DA |
620 | return -EFAULT; |
621 | ||
e92673ed AV |
622 | return drm_ioctl_kernel(file, drm_agp_enable_ioctl, &mode, |
623 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
624 | } |
625 | ||
626 | typedef struct drm_agp_info32 { | |
b5e89ed5 DA |
627 | int agp_version_major; |
628 | int agp_version_minor; | |
629 | u32 mode; | |
630 | u32 aperture_base; /* physical address */ | |
631 | u32 aperture_size; /* bytes */ | |
632 | u32 memory_allowed; /* bytes */ | |
633 | u32 memory_used; | |
634 | ||
635 | /* PCI information */ | |
9a186645 DA |
636 | unsigned short id_vendor; |
637 | unsigned short id_device; | |
638 | } drm_agp_info32_t; | |
639 | ||
640 | static int compat_drm_agp_info(struct file *file, unsigned int cmd, | |
641 | unsigned long arg) | |
642 | { | |
643 | drm_agp_info32_t __user *argp = (void __user *)arg; | |
644 | drm_agp_info32_t i32; | |
e92673ed | 645 | struct drm_agp_info info; |
9a186645 DA |
646 | int err; |
647 | ||
e92673ed | 648 | err = drm_ioctl_kernel(file, drm_agp_info_ioctl, &info, DRM_AUTH); |
9a186645 DA |
649 | if (err) |
650 | return err; | |
651 | ||
e92673ed AV |
652 | i32.agp_version_major = info.agp_version_major; |
653 | i32.agp_version_minor = info.agp_version_minor; | |
654 | i32.mode = info.mode; | |
655 | i32.aperture_base = info.aperture_base; | |
656 | i32.aperture_size = info.aperture_size; | |
657 | i32.memory_allowed = info.memory_allowed; | |
658 | i32.memory_used = info.memory_used; | |
659 | i32.id_vendor = info.id_vendor; | |
660 | i32.id_device = info.id_device; | |
9a186645 DA |
661 | if (copy_to_user(argp, &i32, sizeof(i32))) |
662 | return -EFAULT; | |
663 | ||
664 | return 0; | |
665 | } | |
666 | ||
667 | typedef struct drm_agp_buffer32 { | |
668 | u32 size; /**< In bytes -- will round to page boundary */ | |
669 | u32 handle; /**< Used for binding / unbinding */ | |
670 | u32 type; /**< Type of memory to allocate */ | |
b5e89ed5 | 671 | u32 physical; /**< Physical used by i810 */ |
9a186645 DA |
672 | } drm_agp_buffer32_t; |
673 | ||
674 | static int compat_drm_agp_alloc(struct file *file, unsigned int cmd, | |
675 | unsigned long arg) | |
676 | { | |
677 | drm_agp_buffer32_t __user *argp = (void __user *)arg; | |
678 | drm_agp_buffer32_t req32; | |
e92673ed | 679 | struct drm_agp_buffer request; |
9a186645 DA |
680 | int err; |
681 | ||
682 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
683 | return -EFAULT; | |
684 | ||
e92673ed AV |
685 | request.size = req32.size; |
686 | request.type = req32.type; | |
687 | err = drm_ioctl_kernel(file, drm_agp_alloc_ioctl, &request, | |
688 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
689 | if (err) |
690 | return err; | |
691 | ||
e92673ed AV |
692 | req32.handle = request.handle; |
693 | req32.physical = request.physical; | |
694 | if (copy_to_user(argp, &req32, sizeof(req32))) { | |
695 | drm_ioctl_kernel(file, drm_agp_free_ioctl, &request, | |
696 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
697 | return -EFAULT; |
698 | } | |
699 | ||
700 | return 0; | |
701 | } | |
702 | ||
703 | static int compat_drm_agp_free(struct file *file, unsigned int cmd, | |
704 | unsigned long arg) | |
705 | { | |
706 | drm_agp_buffer32_t __user *argp = (void __user *)arg; | |
e92673ed | 707 | struct drm_agp_buffer request; |
9a186645 | 708 | |
e92673ed | 709 | if (get_user(request.handle, &argp->handle)) |
9a186645 DA |
710 | return -EFAULT; |
711 | ||
e92673ed AV |
712 | return drm_ioctl_kernel(file, drm_agp_free_ioctl, &request, |
713 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
714 | } |
715 | ||
716 | typedef struct drm_agp_binding32 { | |
717 | u32 handle; /**< From drm_agp_buffer */ | |
718 | u32 offset; /**< In bytes -- will round to page boundary */ | |
719 | } drm_agp_binding32_t; | |
720 | ||
721 | static int compat_drm_agp_bind(struct file *file, unsigned int cmd, | |
722 | unsigned long arg) | |
723 | { | |
724 | drm_agp_binding32_t __user *argp = (void __user *)arg; | |
725 | drm_agp_binding32_t req32; | |
e92673ed | 726 | struct drm_agp_binding request; |
9a186645 DA |
727 | |
728 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
729 | return -EFAULT; | |
730 | ||
e92673ed AV |
731 | request.handle = req32.handle; |
732 | request.offset = req32.offset; | |
733 | return drm_ioctl_kernel(file, drm_agp_bind_ioctl, &request, | |
734 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
735 | } |
736 | ||
737 | static int compat_drm_agp_unbind(struct file *file, unsigned int cmd, | |
738 | unsigned long arg) | |
739 | { | |
740 | drm_agp_binding32_t __user *argp = (void __user *)arg; | |
e92673ed | 741 | struct drm_agp_binding request; |
9a186645 | 742 | |
e92673ed | 743 | if (get_user(request.handle, &argp->handle)) |
9a186645 DA |
744 | return -EFAULT; |
745 | ||
e92673ed AV |
746 | return drm_ioctl_kernel(file, drm_agp_unbind_ioctl, &request, |
747 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 | 748 | } |
a7fb8a23 | 749 | #endif /* CONFIG_AGP */ |
9a186645 DA |
750 | |
751 | typedef struct drm_scatter_gather32 { | |
752 | u32 size; /**< In bytes -- will round to page boundary */ | |
753 | u32 handle; /**< Used for mapping / unmapping */ | |
754 | } drm_scatter_gather32_t; | |
755 | ||
756 | static int compat_drm_sg_alloc(struct file *file, unsigned int cmd, | |
757 | unsigned long arg) | |
758 | { | |
759 | drm_scatter_gather32_t __user *argp = (void __user *)arg; | |
314ed736 | 760 | struct drm_scatter_gather request; |
9a186645 | 761 | int err; |
9a186645 | 762 | |
314ed736 | 763 | if (get_user(request.size, &argp->size)) |
9a186645 DA |
764 | return -EFAULT; |
765 | ||
314ed736 AV |
766 | err = drm_ioctl_kernel(file, drm_legacy_sg_alloc, &request, |
767 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
768 | if (err) |
769 | return err; | |
770 | ||
771 | /* XXX not sure about the handle conversion here... */ | |
314ed736 | 772 | if (put_user(request.handle >> PAGE_SHIFT, &argp->handle)) |
9a186645 DA |
773 | return -EFAULT; |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
778 | static int compat_drm_sg_free(struct file *file, unsigned int cmd, | |
779 | unsigned long arg) | |
780 | { | |
781 | drm_scatter_gather32_t __user *argp = (void __user *)arg; | |
314ed736 | 782 | struct drm_scatter_gather request; |
9a186645 DA |
783 | unsigned long x; |
784 | ||
314ed736 | 785 | if (get_user(x, &argp->handle)) |
9a186645 | 786 | return -EFAULT; |
314ed736 AV |
787 | request.handle = x << PAGE_SHIFT; |
788 | return drm_ioctl_kernel(file, drm_legacy_sg_free, &request, | |
789 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
790 | } |
791 | ||
9cc73ce2 | 792 | #if defined(CONFIG_X86) |
49568873 EA |
793 | typedef struct drm_update_draw32 { |
794 | drm_drawable_t handle; | |
795 | unsigned int type; | |
796 | unsigned int num; | |
797 | /* 64-bit version has a 32-bit pad here */ | |
798 | u64 data; /**< Pointer */ | |
799 | } __attribute__((packed)) drm_update_draw32_t; | |
800 | ||
801 | static int compat_drm_update_draw(struct file *file, unsigned int cmd, | |
802 | unsigned long arg) | |
803 | { | |
804 | drm_update_draw32_t update32; | |
49568873 EA |
805 | if (copy_from_user(&update32, (void __user *)arg, sizeof(update32))) |
806 | return -EFAULT; | |
807 | ||
1a36bf1d AV |
808 | return drm_ioctl_kernel(file, drm_noop, NULL, |
809 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
49568873 | 810 | } |
09e40d65 | 811 | #endif |
49568873 | 812 | |
9a186645 | 813 | struct drm_wait_vblank_request32 { |
ff4135ae | 814 | enum drm_vblank_seq_type type; |
9a186645 DA |
815 | unsigned int sequence; |
816 | u32 signal; | |
817 | }; | |
818 | ||
819 | struct drm_wait_vblank_reply32 { | |
ff4135ae | 820 | enum drm_vblank_seq_type type; |
9a186645 DA |
821 | unsigned int sequence; |
822 | s32 tval_sec; | |
823 | s32 tval_usec; | |
824 | }; | |
825 | ||
826 | typedef union drm_wait_vblank32 { | |
827 | struct drm_wait_vblank_request32 request; | |
828 | struct drm_wait_vblank_reply32 reply; | |
829 | } drm_wait_vblank32_t; | |
830 | ||
831 | static int compat_drm_wait_vblank(struct file *file, unsigned int cmd, | |
832 | unsigned long arg) | |
833 | { | |
834 | drm_wait_vblank32_t __user *argp = (void __user *)arg; | |
835 | drm_wait_vblank32_t req32; | |
d5288c88 | 836 | union drm_wait_vblank req; |
9a186645 DA |
837 | int err; |
838 | ||
839 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
840 | return -EFAULT; | |
841 | ||
d5288c88 AV |
842 | req.request.type = req32.request.type; |
843 | req.request.sequence = req32.request.sequence; | |
844 | req.request.signal = req32.request.signal; | |
af055598 | 845 | err = drm_ioctl_kernel(file, drm_wait_vblank_ioctl, &req, DRM_UNLOCKED); |
9a186645 DA |
846 | if (err) |
847 | return err; | |
848 | ||
d5288c88 AV |
849 | req32.reply.type = req.reply.type; |
850 | req32.reply.sequence = req.reply.sequence; | |
851 | req32.reply.tval_sec = req.reply.tval_sec; | |
852 | req32.reply.tval_usec = req.reply.tval_usec; | |
9a186645 DA |
853 | if (copy_to_user(argp, &req32, sizeof(req32))) |
854 | return -EFAULT; | |
855 | ||
856 | return 0; | |
857 | } | |
858 | ||
9cc73ce2 | 859 | #if defined(CONFIG_X86) |
c631d5f9 TU |
860 | typedef struct drm_mode_fb_cmd232 { |
861 | u32 fb_id; | |
862 | u32 width; | |
863 | u32 height; | |
864 | u32 pixel_format; | |
865 | u32 flags; | |
866 | u32 handles[4]; | |
867 | u32 pitches[4]; | |
868 | u32 offsets[4]; | |
869 | u64 modifier[4]; | |
870 | } __attribute__((packed)) drm_mode_fb_cmd232_t; | |
871 | ||
872 | static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd, | |
873 | unsigned long arg) | |
874 | { | |
875 | struct drm_mode_fb_cmd232 __user *argp = (void __user *)arg; | |
b87b786b | 876 | struct drm_mode_fb_cmd2 req64; |
c631d5f9 TU |
877 | int err; |
878 | ||
d6c56613 AV |
879 | if (copy_from_user(&req64, argp, |
880 | offsetof(drm_mode_fb_cmd232_t, modifier))) | |
c631d5f9 TU |
881 | return -EFAULT; |
882 | ||
d6c56613 AV |
883 | if (copy_from_user(&req64.modifier, &argp->modifier, |
884 | sizeof(req64.modifier))) | |
c631d5f9 TU |
885 | return -EFAULT; |
886 | ||
d6c56613 AV |
887 | err = drm_ioctl_kernel(file, drm_mode_addfb2, &req64, |
888 | DRM_CONTROL_ALLOW|DRM_UNLOCKED); | |
c631d5f9 TU |
889 | if (err) |
890 | return err; | |
891 | ||
d6c56613 | 892 | if (put_user(req64.fb_id, &argp->fb_id)) |
c631d5f9 TU |
893 | return -EFAULT; |
894 | ||
895 | return 0; | |
896 | } | |
a988588b | 897 | #endif |
c631d5f9 | 898 | |
9f43e542 AV |
899 | static struct { |
900 | drm_ioctl_compat_t *fn; | |
901 | char *name; | |
902 | } drm_compat_ioctls[] = { | |
ff22ff9e | 903 | #define DRM_IOCTL32_DEF(n, f) [DRM_IOCTL_NR(n##32)] = {.fn = f, .name = #n} |
012c6741 | 904 | DRM_IOCTL32_DEF(DRM_IOCTL_VERSION, compat_drm_version), |
17e3dade | 905 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_UNIQUE, compat_drm_getunique), |
8c4fe499 | 906 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_MAP, compat_drm_getmap), |
9e92662d | 907 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_CLIENT, compat_drm_getclient), |
8547ee9d | 908 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_STATS, compat_drm_getstats), |
56c275cc | 909 | DRM_IOCTL32_DEF(DRM_IOCTL_SET_UNIQUE, compat_drm_setunique), |
b36180a3 | 910 | DRM_IOCTL32_DEF(DRM_IOCTL_ADD_MAP, compat_drm_addmap), |
ff22ff9e | 911 | DRM_IOCTL32_DEF(DRM_IOCTL_ADD_BUFS, compat_drm_addbufs), |
dbae740e | 912 | DRM_IOCTL32_DEF(DRM_IOCTL_MARK_BUFS, compat_drm_markbufs), |
5c7640ab | 913 | DRM_IOCTL32_DEF(DRM_IOCTL_INFO_BUFS, compat_drm_infobufs), |
87d3ce11 | 914 | DRM_IOCTL32_DEF(DRM_IOCTL_MAP_BUFS, compat_drm_mapbufs), |
8c9e4cfb | 915 | DRM_IOCTL32_DEF(DRM_IOCTL_FREE_BUFS, compat_drm_freebufs), |
6113252d | 916 | DRM_IOCTL32_DEF(DRM_IOCTL_RM_MAP, compat_drm_rmmap), |
7900c600 | 917 | DRM_IOCTL32_DEF(DRM_IOCTL_SET_SAREA_CTX, compat_drm_setsareactx), |
d7631e30 | 918 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_SAREA_CTX, compat_drm_getsareactx), |
9e075680 | 919 | DRM_IOCTL32_DEF(DRM_IOCTL_RES_CTX, compat_drm_resctx), |
c6f08966 | 920 | DRM_IOCTL32_DEF(DRM_IOCTL_DMA, compat_drm_dma), |
a7fb8a23 | 921 | #if IS_ENABLED(CONFIG_AGP) |
e92673ed AV |
922 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_ENABLE, compat_drm_agp_enable), |
923 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_INFO, compat_drm_agp_info), | |
924 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_ALLOC, compat_drm_agp_alloc), | |
925 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_FREE, compat_drm_agp_free), | |
926 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_BIND, compat_drm_agp_bind), | |
927 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_UNBIND, compat_drm_agp_unbind), | |
9a186645 | 928 | #endif |
314ed736 AV |
929 | DRM_IOCTL32_DEF(DRM_IOCTL_SG_ALLOC, compat_drm_sg_alloc), |
930 | DRM_IOCTL32_DEF(DRM_IOCTL_SG_FREE, compat_drm_sg_free), | |
09e40d65 | 931 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
1a36bf1d | 932 | DRM_IOCTL32_DEF(DRM_IOCTL_UPDATE_DRAW, compat_drm_update_draw), |
09e40d65 | 933 | #endif |
d5288c88 | 934 | DRM_IOCTL32_DEF(DRM_IOCTL_WAIT_VBLANK, compat_drm_wait_vblank), |
a988588b | 935 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
d6c56613 | 936 | DRM_IOCTL32_DEF(DRM_IOCTL_MODE_ADDFB2, compat_drm_mode_addfb2), |
a988588b | 937 | #endif |
9a186645 DA |
938 | }; |
939 | ||
940 | /** | |
2640981f DV |
941 | * drm_compat_ioctl - 32bit IOCTL compatibility handler for DRM drivers |
942 | * @filp: file this ioctl is called on | |
943 | * @cmd: ioctl cmd number | |
944 | * @arg: user argument | |
945 | * | |
946 | * Compatibility handler for 32 bit userspace running on 64 kernels. All actual | |
947 | * IOCTL handling is forwarded to drm_ioctl(), while marshalling structures as | |
948 | * appropriate. Note that this only handles DRM core IOCTLs, if the driver has | |
949 | * botched IOCTL itself, it must handle those by wrapping this function. | |
9a186645 | 950 | * |
2640981f DV |
951 | * Returns: |
952 | * Zero on success, negative error code on failure. | |
9a186645 DA |
953 | */ |
954 | long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) | |
955 | { | |
956 | unsigned int nr = DRM_IOCTL_NR(cmd); | |
88e3cb07 | 957 | struct drm_file *file_priv = filp->private_data; |
9a186645 DA |
958 | drm_ioctl_compat_t *fn; |
959 | int ret; | |
960 | ||
7ffa05e0 IR |
961 | /* Assume that ioctls without an explicit compat routine will just |
962 | * work. This may not always be a good assumption, but it's better | |
963 | * than always failing. | |
964 | */ | |
3d77461e | 965 | if (nr >= ARRAY_SIZE(drm_compat_ioctls)) |
ed8b6704 | 966 | return drm_ioctl(filp, cmd, arg); |
9a186645 | 967 | |
9f43e542 AV |
968 | fn = drm_compat_ioctls[nr].fn; |
969 | if (!fn) | |
970 | return drm_ioctl(filp, cmd, arg); | |
9a186645 | 971 | |
88e3cb07 AV |
972 | DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n", |
973 | task_pid_nr(current), | |
974 | (long)old_encode_dev(file_priv->minor->kdev->devt), | |
975 | file_priv->authenticated, | |
976 | drm_compat_ioctls[nr].name); | |
977 | ret = (*fn)(filp, cmd, arg); | |
978 | if (ret) | |
979 | DRM_DEBUG("ret = %d\n", ret); | |
9a186645 DA |
980 | return ret; |
981 | } | |
982 | EXPORT_SYMBOL(drm_compat_ioctl); |