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 | |
0500c04e SR |
34 | #include <drm/drm_agpsupport.h> |
35 | #include <drm/drm_file.h> | |
36 | #include <drm/drm_print.h> | |
37 | ||
d6c56613 | 38 | #include "drm_crtc_internal.h" |
0500c04e SR |
39 | #include "drm_internal.h" |
40 | #include "drm_legacy.h" | |
9a186645 DA |
41 | |
42 | #define DRM_IOCTL_VERSION32 DRM_IOWR(0x00, drm_version32_t) | |
43 | #define DRM_IOCTL_GET_UNIQUE32 DRM_IOWR(0x01, drm_unique32_t) | |
44 | #define DRM_IOCTL_GET_MAP32 DRM_IOWR(0x04, drm_map32_t) | |
45 | #define DRM_IOCTL_GET_CLIENT32 DRM_IOWR(0x05, drm_client32_t) | |
46 | #define DRM_IOCTL_GET_STATS32 DRM_IOR( 0x06, drm_stats32_t) | |
47 | ||
48 | #define DRM_IOCTL_SET_UNIQUE32 DRM_IOW( 0x10, drm_unique32_t) | |
49 | #define DRM_IOCTL_ADD_MAP32 DRM_IOWR(0x15, drm_map32_t) | |
50 | #define DRM_IOCTL_ADD_BUFS32 DRM_IOWR(0x16, drm_buf_desc32_t) | |
51 | #define DRM_IOCTL_MARK_BUFS32 DRM_IOW( 0x17, drm_buf_desc32_t) | |
52 | #define DRM_IOCTL_INFO_BUFS32 DRM_IOWR(0x18, drm_buf_info32_t) | |
53 | #define DRM_IOCTL_MAP_BUFS32 DRM_IOWR(0x19, drm_buf_map32_t) | |
54 | #define DRM_IOCTL_FREE_BUFS32 DRM_IOW( 0x1a, drm_buf_free32_t) | |
55 | ||
56 | #define DRM_IOCTL_RM_MAP32 DRM_IOW( 0x1b, drm_map32_t) | |
57 | ||
58 | #define DRM_IOCTL_SET_SAREA_CTX32 DRM_IOW( 0x1c, drm_ctx_priv_map32_t) | |
59 | #define DRM_IOCTL_GET_SAREA_CTX32 DRM_IOWR(0x1d, drm_ctx_priv_map32_t) | |
60 | ||
61 | #define DRM_IOCTL_RES_CTX32 DRM_IOWR(0x26, drm_ctx_res32_t) | |
62 | #define DRM_IOCTL_DMA32 DRM_IOWR(0x29, drm_dma32_t) | |
63 | ||
64 | #define DRM_IOCTL_AGP_ENABLE32 DRM_IOW( 0x32, drm_agp_mode32_t) | |
65 | #define DRM_IOCTL_AGP_INFO32 DRM_IOR( 0x33, drm_agp_info32_t) | |
66 | #define DRM_IOCTL_AGP_ALLOC32 DRM_IOWR(0x34, drm_agp_buffer32_t) | |
67 | #define DRM_IOCTL_AGP_FREE32 DRM_IOW( 0x35, drm_agp_buffer32_t) | |
68 | #define DRM_IOCTL_AGP_BIND32 DRM_IOW( 0x36, drm_agp_binding32_t) | |
69 | #define DRM_IOCTL_AGP_UNBIND32 DRM_IOW( 0x37, drm_agp_binding32_t) | |
70 | ||
71 | #define DRM_IOCTL_SG_ALLOC32 DRM_IOW( 0x38, drm_scatter_gather32_t) | |
72 | #define DRM_IOCTL_SG_FREE32 DRM_IOW( 0x39, drm_scatter_gather32_t) | |
73 | ||
49568873 EA |
74 | #define DRM_IOCTL_UPDATE_DRAW32 DRM_IOW( 0x3f, drm_update_draw32_t) |
75 | ||
9a186645 DA |
76 | #define DRM_IOCTL_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_t) |
77 | ||
c631d5f9 TU |
78 | #define DRM_IOCTL_MODE_ADDFB232 DRM_IOWR(0xb8, drm_mode_fb_cmd232_t) |
79 | ||
9a186645 | 80 | typedef struct drm_version_32 { |
2640981f DV |
81 | int version_major; /* Major version */ |
82 | int version_minor; /* Minor version */ | |
83 | int version_patchlevel; /* Patch level */ | |
84 | u32 name_len; /* Length of name buffer */ | |
85 | u32 name; /* Name of driver */ | |
86 | u32 date_len; /* Length of date buffer */ | |
87 | u32 date; /* User-space buffer to hold date */ | |
88 | u32 desc_len; /* Length of desc buffer */ | |
89 | u32 desc; /* User-space buffer to hold desc */ | |
9a186645 DA |
90 | } drm_version32_t; |
91 | ||
92 | static int compat_drm_version(struct file *file, unsigned int cmd, | |
93 | unsigned long arg) | |
94 | { | |
95 | drm_version32_t v32; | |
012c6741 | 96 | struct drm_version v; |
9a186645 DA |
97 | int err; |
98 | ||
b5e89ed5 | 99 | if (copy_from_user(&v32, (void __user *)arg, sizeof(v32))) |
9a186645 DA |
100 | return -EFAULT; |
101 | ||
012c6741 AV |
102 | v = (struct drm_version) { |
103 | .name_len = v32.name_len, | |
104 | .name = compat_ptr(v32.name), | |
105 | .date_len = v32.date_len, | |
106 | .date = compat_ptr(v32.date), | |
107 | .desc_len = v32.desc_len, | |
108 | .desc = compat_ptr(v32.desc), | |
109 | }; | |
110 | err = drm_ioctl_kernel(file, drm_version, &v, | |
75426367 | 111 | DRM_RENDER_ALLOW); |
9a186645 DA |
112 | if (err) |
113 | return err; | |
114 | ||
012c6741 AV |
115 | v32.version_major = v.version_major; |
116 | v32.version_minor = v.version_minor; | |
117 | v32.version_patchlevel = v.version_patchlevel; | |
266530b3 JC |
118 | v32.name_len = v.name_len; |
119 | v32.date_len = v.date_len; | |
120 | v32.desc_len = v.desc_len; | |
b5e89ed5 | 121 | if (copy_to_user((void __user *)arg, &v32, sizeof(v32))) |
9a186645 DA |
122 | return -EFAULT; |
123 | return 0; | |
124 | } | |
125 | ||
126 | typedef struct drm_unique32 { | |
2640981f DV |
127 | u32 unique_len; /* Length of unique */ |
128 | u32 unique; /* Unique name for driver instantiation */ | |
9a186645 DA |
129 | } drm_unique32_t; |
130 | ||
131 | static int compat_drm_getunique(struct file *file, unsigned int cmd, | |
132 | unsigned long arg) | |
133 | { | |
134 | drm_unique32_t uq32; | |
17e3dade | 135 | struct drm_unique uq; |
9a186645 DA |
136 | int err; |
137 | ||
b5e89ed5 | 138 | if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32))) |
9a186645 | 139 | return -EFAULT; |
17e3dade AV |
140 | uq = (struct drm_unique){ |
141 | .unique_len = uq32.unique_len, | |
142 | .unique = compat_ptr(uq32.unique), | |
143 | }; | |
9a186645 | 144 | |
75426367 | 145 | err = drm_ioctl_kernel(file, drm_getunique, &uq, 0); |
9a186645 DA |
146 | if (err) |
147 | return err; | |
148 | ||
17e3dade | 149 | uq32.unique_len = uq.unique_len; |
b5e89ed5 | 150 | if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32))) |
9a186645 DA |
151 | return -EFAULT; |
152 | return 0; | |
153 | } | |
154 | ||
155 | static int compat_drm_setunique(struct file *file, unsigned int cmd, | |
156 | unsigned long arg) | |
157 | { | |
56c275cc AV |
158 | /* it's dead */ |
159 | return -EINVAL; | |
9a186645 DA |
160 | } |
161 | ||
61ae2270 | 162 | #if IS_ENABLED(CONFIG_DRM_LEGACY) |
9a186645 | 163 | typedef struct drm_map32 { |
2640981f DV |
164 | u32 offset; /* Requested physical address (0 for SAREA) */ |
165 | u32 size; /* Requested physical size (bytes) */ | |
166 | enum drm_map_type type; /* Type of memory to map */ | |
167 | enum drm_map_flags flags; /* Flags */ | |
168 | u32 handle; /* User-space: "Handle" to pass to mmap() */ | |
169 | int mtrr; /* MTRR slot used */ | |
9a186645 DA |
170 | } drm_map32_t; |
171 | ||
172 | static int compat_drm_getmap(struct file *file, unsigned int cmd, | |
173 | unsigned long arg) | |
174 | { | |
175 | drm_map32_t __user *argp = (void __user *)arg; | |
176 | drm_map32_t m32; | |
8c4fe499 AV |
177 | struct drm_map map; |
178 | int err; | |
9a186645 | 179 | |
8c4fe499 | 180 | if (copy_from_user(&m32, argp, sizeof(m32))) |
9a186645 DA |
181 | return -EFAULT; |
182 | ||
8c4fe499 | 183 | map.offset = m32.offset; |
75426367 | 184 | err = drm_ioctl_kernel(file, drm_legacy_getmap_ioctl, &map, 0); |
9a186645 DA |
185 | if (err) |
186 | return err; | |
187 | ||
8c4fe499 AV |
188 | m32.offset = map.offset; |
189 | m32.size = map.size; | |
190 | m32.type = map.type; | |
191 | m32.flags = map.flags; | |
e552f085 | 192 | m32.handle = ptr_to_compat((void __user *)map.handle); |
8c4fe499 | 193 | m32.mtrr = map.mtrr; |
9a186645 DA |
194 | if (copy_to_user(argp, &m32, sizeof(m32))) |
195 | return -EFAULT; | |
196 | return 0; | |
197 | ||
198 | } | |
199 | ||
200 | static int compat_drm_addmap(struct file *file, unsigned int cmd, | |
201 | unsigned long arg) | |
202 | { | |
203 | drm_map32_t __user *argp = (void __user *)arg; | |
204 | drm_map32_t m32; | |
b36180a3 | 205 | struct drm_map map; |
9a186645 | 206 | int err; |
9a186645 DA |
207 | |
208 | if (copy_from_user(&m32, argp, sizeof(m32))) | |
209 | return -EFAULT; | |
210 | ||
b36180a3 AV |
211 | map.offset = m32.offset; |
212 | map.size = m32.size; | |
213 | map.type = m32.type; | |
214 | map.flags = m32.flags; | |
9a186645 | 215 | |
b36180a3 AV |
216 | err = drm_ioctl_kernel(file, drm_legacy_addmap_ioctl, &map, |
217 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
218 | if (err) |
219 | return err; | |
220 | ||
b36180a3 AV |
221 | m32.offset = map.offset; |
222 | m32.mtrr = map.mtrr; | |
e552f085 | 223 | m32.handle = ptr_to_compat((void __user *)map.handle); |
b36180a3 | 224 | if (map.handle != compat_ptr(m32.handle)) |
499447db | 225 | pr_err_ratelimited("compat_drm_addmap truncated handle %p for type %d offset %x\n", |
b36180a3 | 226 | map.handle, m32.type, m32.offset); |
9a186645 DA |
227 | |
228 | if (copy_to_user(argp, &m32, sizeof(m32))) | |
229 | return -EFAULT; | |
230 | ||
231 | return 0; | |
232 | } | |
233 | ||
234 | static int compat_drm_rmmap(struct file *file, unsigned int cmd, | |
235 | unsigned long arg) | |
236 | { | |
237 | drm_map32_t __user *argp = (void __user *)arg; | |
6113252d | 238 | struct drm_map map; |
9a186645 DA |
239 | u32 handle; |
240 | ||
241 | if (get_user(handle, &argp->handle)) | |
242 | return -EFAULT; | |
6113252d AV |
243 | map.handle = compat_ptr(handle); |
244 | return drm_ioctl_kernel(file, drm_legacy_rmmap_ioctl, &map, DRM_AUTH); | |
9a186645 | 245 | } |
61ae2270 | 246 | #endif |
9a186645 DA |
247 | |
248 | typedef struct drm_client32 { | |
2640981f DV |
249 | int idx; /* Which client desired? */ |
250 | int auth; /* Is client authenticated? */ | |
251 | u32 pid; /* Process ID */ | |
252 | u32 uid; /* User ID */ | |
253 | u32 magic; /* Magic */ | |
254 | u32 iocs; /* Ioctl count */ | |
9a186645 DA |
255 | } drm_client32_t; |
256 | ||
257 | static int compat_drm_getclient(struct file *file, unsigned int cmd, | |
258 | unsigned long arg) | |
259 | { | |
260 | drm_client32_t c32; | |
261 | drm_client32_t __user *argp = (void __user *)arg; | |
9e92662d AV |
262 | struct drm_client client; |
263 | int err; | |
9a186645 | 264 | |
9e92662d | 265 | if (copy_from_user(&c32, argp, sizeof(c32))) |
9a186645 DA |
266 | return -EFAULT; |
267 | ||
9e92662d | 268 | client.idx = c32.idx; |
9a186645 | 269 | |
75426367 | 270 | err = drm_ioctl_kernel(file, drm_getclient, &client, 0); |
9a186645 DA |
271 | if (err) |
272 | return err; | |
273 | ||
9e92662d AV |
274 | c32.idx = client.idx; |
275 | c32.auth = client.auth; | |
276 | c32.pid = client.pid; | |
277 | c32.uid = client.uid; | |
278 | c32.magic = client.magic; | |
279 | c32.iocs = client.iocs; | |
9a186645 DA |
280 | |
281 | if (copy_to_user(argp, &c32, sizeof(c32))) | |
282 | return -EFAULT; | |
283 | return 0; | |
284 | } | |
285 | ||
286 | typedef struct drm_stats32 { | |
287 | u32 count; | |
288 | struct { | |
289 | u32 value; | |
ff4135ae | 290 | enum drm_stat_type type; |
9a186645 DA |
291 | } data[15]; |
292 | } drm_stats32_t; | |
293 | ||
294 | static int compat_drm_getstats(struct file *file, unsigned int cmd, | |
295 | unsigned long arg) | |
296 | { | |
9a186645 | 297 | drm_stats32_t __user *argp = (void __user *)arg; |
8547ee9d | 298 | int err; |
9a186645 | 299 | |
75426367 | 300 | err = drm_ioctl_kernel(file, drm_noop, NULL, 0); |
9a186645 DA |
301 | if (err) |
302 | return err; | |
303 | ||
8547ee9d | 304 | if (clear_user(argp, sizeof(drm_stats32_t))) |
9a186645 DA |
305 | return -EFAULT; |
306 | return 0; | |
307 | } | |
308 | ||
61ae2270 | 309 | #if IS_ENABLED(CONFIG_DRM_LEGACY) |
9a186645 | 310 | typedef struct drm_buf_desc32 { |
2640981f DV |
311 | int count; /* Number of buffers of this size */ |
312 | int size; /* Size in bytes */ | |
313 | int low_mark; /* Low water mark */ | |
314 | int high_mark; /* High water mark */ | |
b5e89ed5 | 315 | int flags; |
2640981f | 316 | u32 agp_start; /* Start address in the AGP aperture */ |
9a186645 DA |
317 | } drm_buf_desc32_t; |
318 | ||
319 | static int compat_drm_addbufs(struct file *file, unsigned int cmd, | |
320 | unsigned long arg) | |
321 | { | |
322 | drm_buf_desc32_t __user *argp = (void __user *)arg; | |
ff22ff9e AV |
323 | drm_buf_desc32_t desc32; |
324 | struct drm_buf_desc desc; | |
9a186645 | 325 | int err; |
9a186645 | 326 | |
ff22ff9e | 327 | if (copy_from_user(&desc32, argp, sizeof(drm_buf_desc32_t))) |
9a186645 DA |
328 | return -EFAULT; |
329 | ||
ff22ff9e AV |
330 | desc = (struct drm_buf_desc){ |
331 | desc32.count, desc32.size, desc32.low_mark, desc32.high_mark, | |
332 | desc32.flags, desc32.agp_start | |
333 | }; | |
9a186645 | 334 | |
ff22ff9e AV |
335 | err = drm_ioctl_kernel(file, drm_legacy_addbufs, &desc, |
336 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
337 | if (err) |
338 | return err; | |
339 | ||
ff22ff9e AV |
340 | desc32 = (drm_buf_desc32_t){ |
341 | desc.count, desc.size, desc.low_mark, desc.high_mark, | |
342 | desc.flags, desc.agp_start | |
343 | }; | |
344 | if (copy_to_user(argp, &desc32, sizeof(drm_buf_desc32_t))) | |
9a186645 DA |
345 | return -EFAULT; |
346 | ||
347 | return 0; | |
348 | } | |
349 | ||
350 | static int compat_drm_markbufs(struct file *file, unsigned int cmd, | |
351 | unsigned long arg) | |
352 | { | |
353 | drm_buf_desc32_t b32; | |
354 | drm_buf_desc32_t __user *argp = (void __user *)arg; | |
b87b786b | 355 | struct drm_buf_desc buf; |
9a186645 DA |
356 | |
357 | if (copy_from_user(&b32, argp, sizeof(b32))) | |
358 | return -EFAULT; | |
359 | ||
dbae740e AV |
360 | buf.size = b32.size; |
361 | buf.low_mark = b32.low_mark; | |
362 | buf.high_mark = b32.high_mark; | |
9a186645 | 363 | |
dbae740e AV |
364 | return drm_ioctl_kernel(file, drm_legacy_markbufs, &buf, |
365 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
366 | } |
367 | ||
368 | typedef struct drm_buf_info32 { | |
b5e89ed5 DA |
369 | int count; /**< Entries in list */ |
370 | u32 list; | |
9a186645 DA |
371 | } drm_buf_info32_t; |
372 | ||
5c7640ab AV |
373 | static int copy_one_buf32(void *data, int count, struct drm_buf_entry *from) |
374 | { | |
375 | drm_buf_info32_t *request = data; | |
376 | drm_buf_desc32_t __user *to = compat_ptr(request->list); | |
377 | drm_buf_desc32_t v = {.count = from->buf_count, | |
378 | .size = from->buf_size, | |
379 | .low_mark = from->low_mark, | |
380 | .high_mark = from->high_mark}; | |
74b67efa DC |
381 | |
382 | if (copy_to_user(to + count, &v, offsetof(drm_buf_desc32_t, flags))) | |
383 | return -EFAULT; | |
384 | return 0; | |
5c7640ab AV |
385 | } |
386 | ||
387 | static int drm_legacy_infobufs32(struct drm_device *dev, void *data, | |
388 | struct drm_file *file_priv) | |
389 | { | |
390 | drm_buf_info32_t *request = data; | |
948de842 | 391 | |
5c7640ab AV |
392 | return __drm_legacy_infobufs(dev, data, &request->count, copy_one_buf32); |
393 | } | |
394 | ||
9a186645 DA |
395 | static int compat_drm_infobufs(struct file *file, unsigned int cmd, |
396 | unsigned long arg) | |
397 | { | |
398 | drm_buf_info32_t req32; | |
399 | drm_buf_info32_t __user *argp = (void __user *)arg; | |
5c7640ab | 400 | int err; |
9a186645 DA |
401 | |
402 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
403 | return -EFAULT; | |
404 | ||
5c7640ab AV |
405 | if (req32.count < 0) |
406 | req32.count = 0; | |
9a186645 | 407 | |
5c7640ab | 408 | err = drm_ioctl_kernel(file, drm_legacy_infobufs32, &req32, DRM_AUTH); |
9a186645 DA |
409 | if (err) |
410 | return err; | |
411 | ||
5c7640ab | 412 | if (put_user(req32.count, &argp->count)) |
9a186645 DA |
413 | return -EFAULT; |
414 | ||
415 | return 0; | |
416 | } | |
417 | ||
418 | typedef struct drm_buf_pub32 { | |
b5e89ed5 DA |
419 | int idx; /**< Index into the master buffer list */ |
420 | int total; /**< Buffer size */ | |
421 | int used; /**< Amount of buffer in use (for DMA) */ | |
422 | u32 address; /**< Address of buffer */ | |
9a186645 DA |
423 | } drm_buf_pub32_t; |
424 | ||
425 | typedef struct drm_buf_map32 { | |
b5e89ed5 DA |
426 | int count; /**< Length of the buffer list */ |
427 | u32 virtual; /**< Mmap'd area in user-virtual */ | |
428 | u32 list; /**< Buffer information */ | |
9a186645 DA |
429 | } drm_buf_map32_t; |
430 | ||
87d3ce11 AV |
431 | static int map_one_buf32(void *data, int idx, unsigned long virtual, |
432 | struct drm_buf *buf) | |
433 | { | |
434 | drm_buf_map32_t *request = data; | |
435 | drm_buf_pub32_t __user *to = compat_ptr(request->list) + idx; | |
436 | drm_buf_pub32_t v; | |
437 | ||
438 | v.idx = buf->idx; | |
439 | v.total = buf->total; | |
440 | v.used = 0; | |
441 | v.address = virtual + buf->offset; | |
442 | if (copy_to_user(to, &v, sizeof(v))) | |
443 | return -EFAULT; | |
444 | return 0; | |
445 | } | |
446 | ||
447 | static int drm_legacy_mapbufs32(struct drm_device *dev, void *data, | |
448 | struct drm_file *file_priv) | |
449 | { | |
450 | drm_buf_map32_t *request = data; | |
451 | void __user *v; | |
452 | int err = __drm_legacy_mapbufs(dev, data, &request->count, | |
453 | &v, map_one_buf32, | |
454 | file_priv); | |
455 | request->virtual = ptr_to_compat(v); | |
456 | return err; | |
457 | } | |
458 | ||
9a186645 DA |
459 | static int compat_drm_mapbufs(struct file *file, unsigned int cmd, |
460 | unsigned long arg) | |
461 | { | |
462 | drm_buf_map32_t __user *argp = (void __user *)arg; | |
463 | drm_buf_map32_t req32; | |
87d3ce11 | 464 | int err; |
9a186645 DA |
465 | |
466 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
467 | return -EFAULT; | |
87d3ce11 | 468 | if (req32.count < 0) |
9a186645 | 469 | return -EINVAL; |
9a186645 | 470 | |
87d3ce11 | 471 | err = drm_ioctl_kernel(file, drm_legacy_mapbufs32, &req32, DRM_AUTH); |
9a186645 DA |
472 | if (err) |
473 | return err; | |
474 | ||
87d3ce11 AV |
475 | if (put_user(req32.count, &argp->count) |
476 | || put_user(req32.virtual, &argp->virtual)) | |
9a186645 DA |
477 | return -EFAULT; |
478 | ||
479 | return 0; | |
480 | } | |
481 | ||
482 | typedef struct drm_buf_free32 { | |
b5e89ed5 DA |
483 | int count; |
484 | u32 list; | |
9a186645 DA |
485 | } drm_buf_free32_t; |
486 | ||
487 | static int compat_drm_freebufs(struct file *file, unsigned int cmd, | |
488 | unsigned long arg) | |
489 | { | |
490 | drm_buf_free32_t req32; | |
8c9e4cfb | 491 | struct drm_buf_free request; |
9a186645 DA |
492 | drm_buf_free32_t __user *argp = (void __user *)arg; |
493 | ||
494 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
495 | return -EFAULT; | |
496 | ||
8c9e4cfb AV |
497 | request.count = req32.count; |
498 | request.list = compat_ptr(req32.list); | |
499 | return drm_ioctl_kernel(file, drm_legacy_freebufs, &request, DRM_AUTH); | |
9a186645 DA |
500 | } |
501 | ||
502 | typedef struct drm_ctx_priv_map32 { | |
b5e89ed5 DA |
503 | unsigned int ctx_id; /**< Context requesting private mapping */ |
504 | u32 handle; /**< Handle of map */ | |
9a186645 DA |
505 | } drm_ctx_priv_map32_t; |
506 | ||
507 | static int compat_drm_setsareactx(struct file *file, unsigned int cmd, | |
508 | unsigned long arg) | |
509 | { | |
510 | drm_ctx_priv_map32_t req32; | |
7900c600 | 511 | struct drm_ctx_priv_map request; |
9a186645 DA |
512 | drm_ctx_priv_map32_t __user *argp = (void __user *)arg; |
513 | ||
514 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
515 | return -EFAULT; | |
516 | ||
7900c600 AV |
517 | request.ctx_id = req32.ctx_id; |
518 | request.handle = compat_ptr(req32.handle); | |
519 | return drm_ioctl_kernel(file, drm_legacy_setsareactx, &request, | |
520 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
521 | } |
522 | ||
523 | static int compat_drm_getsareactx(struct file *file, unsigned int cmd, | |
524 | unsigned long arg) | |
525 | { | |
d7631e30 AV |
526 | struct drm_ctx_priv_map req; |
527 | drm_ctx_priv_map32_t req32; | |
9a186645 DA |
528 | drm_ctx_priv_map32_t __user *argp = (void __user *)arg; |
529 | int err; | |
9a186645 | 530 | |
d7631e30 | 531 | if (copy_from_user(&req32, argp, sizeof(req32))) |
9a186645 DA |
532 | return -EFAULT; |
533 | ||
d7631e30 AV |
534 | req.ctx_id = req32.ctx_id; |
535 | err = drm_ioctl_kernel(file, drm_legacy_getsareactx, &req, DRM_AUTH); | |
9a186645 DA |
536 | if (err) |
537 | return err; | |
538 | ||
e552f085 | 539 | req32.handle = ptr_to_compat((void __user *)req.handle); |
d7631e30 | 540 | if (copy_to_user(argp, &req32, sizeof(req32))) |
9a186645 DA |
541 | return -EFAULT; |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
546 | typedef struct drm_ctx_res32 { | |
b5e89ed5 DA |
547 | int count; |
548 | u32 contexts; | |
9a186645 DA |
549 | } drm_ctx_res32_t; |
550 | ||
551 | static int compat_drm_resctx(struct file *file, unsigned int cmd, | |
552 | unsigned long arg) | |
553 | { | |
554 | drm_ctx_res32_t __user *argp = (void __user *)arg; | |
555 | drm_ctx_res32_t res32; | |
9e075680 | 556 | struct drm_ctx_res res; |
9a186645 DA |
557 | int err; |
558 | ||
559 | if (copy_from_user(&res32, argp, sizeof(res32))) | |
560 | return -EFAULT; | |
561 | ||
9e075680 AV |
562 | res.count = res32.count; |
563 | res.contexts = compat_ptr(res32.contexts); | |
564 | err = drm_ioctl_kernel(file, drm_legacy_resctx, &res, DRM_AUTH); | |
9a186645 DA |
565 | if (err) |
566 | return err; | |
567 | ||
9e075680 AV |
568 | res32.count = res.count; |
569 | if (copy_to_user(argp, &res32, sizeof(res32))) | |
9a186645 DA |
570 | return -EFAULT; |
571 | ||
572 | return 0; | |
573 | } | |
574 | ||
575 | typedef struct drm_dma32 { | |
b5e89ed5 DA |
576 | int context; /**< Context handle */ |
577 | int send_count; /**< Number of buffers to send */ | |
578 | u32 send_indices; /**< List of handles to buffers */ | |
579 | u32 send_sizes; /**< Lengths of data to send */ | |
ff4135ae | 580 | enum drm_dma_flags flags; /**< Flags */ |
b5e89ed5 DA |
581 | int request_count; /**< Number of buffers requested */ |
582 | int request_size; /**< Desired size for buffers */ | |
583 | u32 request_indices; /**< Buffer information */ | |
584 | u32 request_sizes; | |
585 | int granted_count; /**< Number of buffers granted */ | |
9a186645 DA |
586 | } drm_dma32_t; |
587 | ||
588 | static int compat_drm_dma(struct file *file, unsigned int cmd, | |
589 | unsigned long arg) | |
590 | { | |
591 | drm_dma32_t d32; | |
b5e89ed5 | 592 | drm_dma32_t __user *argp = (void __user *)arg; |
c6f08966 | 593 | struct drm_dma d; |
9a186645 DA |
594 | int err; |
595 | ||
596 | if (copy_from_user(&d32, argp, sizeof(d32))) | |
597 | return -EFAULT; | |
598 | ||
c6f08966 AV |
599 | d.context = d32.context; |
600 | d.send_count = d32.send_count; | |
601 | d.send_indices = compat_ptr(d32.send_indices); | |
602 | d.send_sizes = compat_ptr(d32.send_sizes); | |
603 | d.flags = d32.flags; | |
604 | d.request_count = d32.request_count; | |
605 | d.request_indices = compat_ptr(d32.request_indices); | |
606 | d.request_sizes = compat_ptr(d32.request_sizes); | |
607 | err = drm_ioctl_kernel(file, drm_legacy_dma_ioctl, &d, DRM_AUTH); | |
9a186645 DA |
608 | if (err) |
609 | return err; | |
610 | ||
c6f08966 AV |
611 | if (put_user(d.request_size, &argp->request_size) |
612 | || put_user(d.granted_count, &argp->granted_count)) | |
9a186645 DA |
613 | return -EFAULT; |
614 | ||
615 | return 0; | |
616 | } | |
61ae2270 | 617 | #endif |
9a186645 | 618 | |
a7fb8a23 | 619 | #if IS_ENABLED(CONFIG_AGP) |
9a186645 DA |
620 | typedef struct drm_agp_mode32 { |
621 | u32 mode; /**< AGP mode */ | |
622 | } drm_agp_mode32_t; | |
623 | ||
624 | static int compat_drm_agp_enable(struct file *file, unsigned int cmd, | |
625 | unsigned long arg) | |
626 | { | |
627 | drm_agp_mode32_t __user *argp = (void __user *)arg; | |
e92673ed | 628 | struct drm_agp_mode mode; |
9a186645 | 629 | |
e92673ed | 630 | if (get_user(mode.mode, &argp->mode)) |
9a186645 DA |
631 | return -EFAULT; |
632 | ||
e92673ed AV |
633 | return drm_ioctl_kernel(file, drm_agp_enable_ioctl, &mode, |
634 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
635 | } |
636 | ||
637 | typedef struct drm_agp_info32 { | |
b5e89ed5 DA |
638 | int agp_version_major; |
639 | int agp_version_minor; | |
640 | u32 mode; | |
641 | u32 aperture_base; /* physical address */ | |
642 | u32 aperture_size; /* bytes */ | |
643 | u32 memory_allowed; /* bytes */ | |
644 | u32 memory_used; | |
645 | ||
646 | /* PCI information */ | |
9a186645 DA |
647 | unsigned short id_vendor; |
648 | unsigned short id_device; | |
649 | } drm_agp_info32_t; | |
650 | ||
651 | static int compat_drm_agp_info(struct file *file, unsigned int cmd, | |
652 | unsigned long arg) | |
653 | { | |
654 | drm_agp_info32_t __user *argp = (void __user *)arg; | |
655 | drm_agp_info32_t i32; | |
e92673ed | 656 | struct drm_agp_info info; |
9a186645 DA |
657 | int err; |
658 | ||
e92673ed | 659 | err = drm_ioctl_kernel(file, drm_agp_info_ioctl, &info, DRM_AUTH); |
9a186645 DA |
660 | if (err) |
661 | return err; | |
662 | ||
e92673ed AV |
663 | i32.agp_version_major = info.agp_version_major; |
664 | i32.agp_version_minor = info.agp_version_minor; | |
665 | i32.mode = info.mode; | |
666 | i32.aperture_base = info.aperture_base; | |
667 | i32.aperture_size = info.aperture_size; | |
668 | i32.memory_allowed = info.memory_allowed; | |
669 | i32.memory_used = info.memory_used; | |
670 | i32.id_vendor = info.id_vendor; | |
671 | i32.id_device = info.id_device; | |
9a186645 DA |
672 | if (copy_to_user(argp, &i32, sizeof(i32))) |
673 | return -EFAULT; | |
674 | ||
675 | return 0; | |
676 | } | |
677 | ||
678 | typedef struct drm_agp_buffer32 { | |
679 | u32 size; /**< In bytes -- will round to page boundary */ | |
680 | u32 handle; /**< Used for binding / unbinding */ | |
681 | u32 type; /**< Type of memory to allocate */ | |
b5e89ed5 | 682 | u32 physical; /**< Physical used by i810 */ |
9a186645 DA |
683 | } drm_agp_buffer32_t; |
684 | ||
685 | static int compat_drm_agp_alloc(struct file *file, unsigned int cmd, | |
686 | unsigned long arg) | |
687 | { | |
688 | drm_agp_buffer32_t __user *argp = (void __user *)arg; | |
689 | drm_agp_buffer32_t req32; | |
e92673ed | 690 | struct drm_agp_buffer request; |
9a186645 DA |
691 | int err; |
692 | ||
693 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
694 | return -EFAULT; | |
695 | ||
e92673ed AV |
696 | request.size = req32.size; |
697 | request.type = req32.type; | |
698 | err = drm_ioctl_kernel(file, drm_agp_alloc_ioctl, &request, | |
699 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
700 | if (err) |
701 | return err; | |
702 | ||
e92673ed AV |
703 | req32.handle = request.handle; |
704 | req32.physical = request.physical; | |
705 | if (copy_to_user(argp, &req32, sizeof(req32))) { | |
706 | drm_ioctl_kernel(file, drm_agp_free_ioctl, &request, | |
707 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
708 | return -EFAULT; |
709 | } | |
710 | ||
711 | return 0; | |
712 | } | |
713 | ||
714 | static int compat_drm_agp_free(struct file *file, unsigned int cmd, | |
715 | unsigned long arg) | |
716 | { | |
717 | drm_agp_buffer32_t __user *argp = (void __user *)arg; | |
e92673ed | 718 | struct drm_agp_buffer request; |
9a186645 | 719 | |
e92673ed | 720 | if (get_user(request.handle, &argp->handle)) |
9a186645 DA |
721 | return -EFAULT; |
722 | ||
e92673ed AV |
723 | return drm_ioctl_kernel(file, drm_agp_free_ioctl, &request, |
724 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
725 | } |
726 | ||
727 | typedef struct drm_agp_binding32 { | |
728 | u32 handle; /**< From drm_agp_buffer */ | |
729 | u32 offset; /**< In bytes -- will round to page boundary */ | |
730 | } drm_agp_binding32_t; | |
731 | ||
732 | static int compat_drm_agp_bind(struct file *file, unsigned int cmd, | |
733 | unsigned long arg) | |
734 | { | |
735 | drm_agp_binding32_t __user *argp = (void __user *)arg; | |
736 | drm_agp_binding32_t req32; | |
e92673ed | 737 | struct drm_agp_binding request; |
9a186645 DA |
738 | |
739 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
740 | return -EFAULT; | |
741 | ||
e92673ed AV |
742 | request.handle = req32.handle; |
743 | request.offset = req32.offset; | |
744 | return drm_ioctl_kernel(file, drm_agp_bind_ioctl, &request, | |
745 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
746 | } |
747 | ||
748 | static int compat_drm_agp_unbind(struct file *file, unsigned int cmd, | |
749 | unsigned long arg) | |
750 | { | |
751 | drm_agp_binding32_t __user *argp = (void __user *)arg; | |
e92673ed | 752 | struct drm_agp_binding request; |
9a186645 | 753 | |
e92673ed | 754 | if (get_user(request.handle, &argp->handle)) |
9a186645 DA |
755 | return -EFAULT; |
756 | ||
e92673ed AV |
757 | return drm_ioctl_kernel(file, drm_agp_unbind_ioctl, &request, |
758 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 | 759 | } |
a7fb8a23 | 760 | #endif /* CONFIG_AGP */ |
9a186645 | 761 | |
61ae2270 | 762 | #if IS_ENABLED(CONFIG_DRM_LEGACY) |
9a186645 DA |
763 | typedef struct drm_scatter_gather32 { |
764 | u32 size; /**< In bytes -- will round to page boundary */ | |
765 | u32 handle; /**< Used for mapping / unmapping */ | |
766 | } drm_scatter_gather32_t; | |
767 | ||
768 | static int compat_drm_sg_alloc(struct file *file, unsigned int cmd, | |
769 | unsigned long arg) | |
770 | { | |
771 | drm_scatter_gather32_t __user *argp = (void __user *)arg; | |
314ed736 | 772 | struct drm_scatter_gather request; |
9a186645 | 773 | int err; |
9a186645 | 774 | |
314ed736 | 775 | if (get_user(request.size, &argp->size)) |
9a186645 DA |
776 | return -EFAULT; |
777 | ||
314ed736 AV |
778 | err = drm_ioctl_kernel(file, drm_legacy_sg_alloc, &request, |
779 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 DA |
780 | if (err) |
781 | return err; | |
782 | ||
783 | /* XXX not sure about the handle conversion here... */ | |
314ed736 | 784 | if (put_user(request.handle >> PAGE_SHIFT, &argp->handle)) |
9a186645 DA |
785 | return -EFAULT; |
786 | ||
787 | return 0; | |
788 | } | |
789 | ||
790 | static int compat_drm_sg_free(struct file *file, unsigned int cmd, | |
791 | unsigned long arg) | |
792 | { | |
793 | drm_scatter_gather32_t __user *argp = (void __user *)arg; | |
314ed736 | 794 | struct drm_scatter_gather request; |
9a186645 DA |
795 | unsigned long x; |
796 | ||
314ed736 | 797 | if (get_user(x, &argp->handle)) |
9a186645 | 798 | return -EFAULT; |
314ed736 AV |
799 | request.handle = x << PAGE_SHIFT; |
800 | return drm_ioctl_kernel(file, drm_legacy_sg_free, &request, | |
801 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
9a186645 | 802 | } |
61ae2270 | 803 | #endif |
9cc73ce2 | 804 | #if defined(CONFIG_X86) |
49568873 EA |
805 | typedef struct drm_update_draw32 { |
806 | drm_drawable_t handle; | |
807 | unsigned int type; | |
808 | unsigned int num; | |
809 | /* 64-bit version has a 32-bit pad here */ | |
810 | u64 data; /**< Pointer */ | |
811 | } __attribute__((packed)) drm_update_draw32_t; | |
812 | ||
813 | static int compat_drm_update_draw(struct file *file, unsigned int cmd, | |
814 | unsigned long arg) | |
815 | { | |
816 | drm_update_draw32_t update32; | |
948de842 | 817 | |
49568873 EA |
818 | if (copy_from_user(&update32, (void __user *)arg, sizeof(update32))) |
819 | return -EFAULT; | |
820 | ||
1a36bf1d AV |
821 | return drm_ioctl_kernel(file, drm_noop, NULL, |
822 | DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); | |
49568873 | 823 | } |
09e40d65 | 824 | #endif |
49568873 | 825 | |
9a186645 | 826 | struct drm_wait_vblank_request32 { |
ff4135ae | 827 | enum drm_vblank_seq_type type; |
9a186645 DA |
828 | unsigned int sequence; |
829 | u32 signal; | |
830 | }; | |
831 | ||
832 | struct drm_wait_vblank_reply32 { | |
ff4135ae | 833 | enum drm_vblank_seq_type type; |
9a186645 DA |
834 | unsigned int sequence; |
835 | s32 tval_sec; | |
836 | s32 tval_usec; | |
837 | }; | |
838 | ||
839 | typedef union drm_wait_vblank32 { | |
840 | struct drm_wait_vblank_request32 request; | |
841 | struct drm_wait_vblank_reply32 reply; | |
842 | } drm_wait_vblank32_t; | |
843 | ||
844 | static int compat_drm_wait_vblank(struct file *file, unsigned int cmd, | |
845 | unsigned long arg) | |
846 | { | |
847 | drm_wait_vblank32_t __user *argp = (void __user *)arg; | |
848 | drm_wait_vblank32_t req32; | |
d5288c88 | 849 | union drm_wait_vblank req; |
9a186645 DA |
850 | int err; |
851 | ||
852 | if (copy_from_user(&req32, argp, sizeof(req32))) | |
853 | return -EFAULT; | |
854 | ||
d5288c88 AV |
855 | req.request.type = req32.request.type; |
856 | req.request.sequence = req32.request.sequence; | |
857 | req.request.signal = req32.request.signal; | |
af055598 | 858 | err = drm_ioctl_kernel(file, drm_wait_vblank_ioctl, &req, DRM_UNLOCKED); |
9a186645 DA |
859 | if (err) |
860 | return err; | |
861 | ||
d5288c88 AV |
862 | req32.reply.type = req.reply.type; |
863 | req32.reply.sequence = req.reply.sequence; | |
864 | req32.reply.tval_sec = req.reply.tval_sec; | |
865 | req32.reply.tval_usec = req.reply.tval_usec; | |
9a186645 DA |
866 | if (copy_to_user(argp, &req32, sizeof(req32))) |
867 | return -EFAULT; | |
868 | ||
869 | return 0; | |
870 | } | |
871 | ||
9cc73ce2 | 872 | #if defined(CONFIG_X86) |
c631d5f9 TU |
873 | typedef struct drm_mode_fb_cmd232 { |
874 | u32 fb_id; | |
875 | u32 width; | |
876 | u32 height; | |
877 | u32 pixel_format; | |
878 | u32 flags; | |
879 | u32 handles[4]; | |
880 | u32 pitches[4]; | |
881 | u32 offsets[4]; | |
882 | u64 modifier[4]; | |
883 | } __attribute__((packed)) drm_mode_fb_cmd232_t; | |
884 | ||
885 | static int compat_drm_mode_addfb2(struct file *file, unsigned int cmd, | |
886 | unsigned long arg) | |
887 | { | |
888 | struct drm_mode_fb_cmd232 __user *argp = (void __user *)arg; | |
b87b786b | 889 | struct drm_mode_fb_cmd2 req64; |
c631d5f9 TU |
890 | int err; |
891 | ||
d6c56613 AV |
892 | if (copy_from_user(&req64, argp, |
893 | offsetof(drm_mode_fb_cmd232_t, modifier))) | |
c631d5f9 TU |
894 | return -EFAULT; |
895 | ||
d6c56613 AV |
896 | if (copy_from_user(&req64.modifier, &argp->modifier, |
897 | sizeof(req64.modifier))) | |
c631d5f9 TU |
898 | return -EFAULT; |
899 | ||
75426367 | 900 | err = drm_ioctl_kernel(file, drm_mode_addfb2, &req64, 0); |
c631d5f9 TU |
901 | if (err) |
902 | return err; | |
903 | ||
d6c56613 | 904 | if (put_user(req64.fb_id, &argp->fb_id)) |
c631d5f9 TU |
905 | return -EFAULT; |
906 | ||
907 | return 0; | |
908 | } | |
a988588b | 909 | #endif |
c631d5f9 | 910 | |
9f43e542 AV |
911 | static struct { |
912 | drm_ioctl_compat_t *fn; | |
913 | char *name; | |
914 | } drm_compat_ioctls[] = { | |
ff22ff9e | 915 | #define DRM_IOCTL32_DEF(n, f) [DRM_IOCTL_NR(n##32)] = {.fn = f, .name = #n} |
012c6741 | 916 | DRM_IOCTL32_DEF(DRM_IOCTL_VERSION, compat_drm_version), |
17e3dade | 917 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_UNIQUE, compat_drm_getunique), |
61ae2270 | 918 | #if IS_ENABLED(CONFIG_DRM_LEGACY) |
8c4fe499 | 919 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_MAP, compat_drm_getmap), |
61ae2270 | 920 | #endif |
9e92662d | 921 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_CLIENT, compat_drm_getclient), |
8547ee9d | 922 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_STATS, compat_drm_getstats), |
56c275cc | 923 | DRM_IOCTL32_DEF(DRM_IOCTL_SET_UNIQUE, compat_drm_setunique), |
61ae2270 | 924 | #if IS_ENABLED(CONFIG_DRM_LEGACY) |
b36180a3 | 925 | DRM_IOCTL32_DEF(DRM_IOCTL_ADD_MAP, compat_drm_addmap), |
ff22ff9e | 926 | DRM_IOCTL32_DEF(DRM_IOCTL_ADD_BUFS, compat_drm_addbufs), |
dbae740e | 927 | DRM_IOCTL32_DEF(DRM_IOCTL_MARK_BUFS, compat_drm_markbufs), |
5c7640ab | 928 | DRM_IOCTL32_DEF(DRM_IOCTL_INFO_BUFS, compat_drm_infobufs), |
87d3ce11 | 929 | DRM_IOCTL32_DEF(DRM_IOCTL_MAP_BUFS, compat_drm_mapbufs), |
8c9e4cfb | 930 | DRM_IOCTL32_DEF(DRM_IOCTL_FREE_BUFS, compat_drm_freebufs), |
6113252d | 931 | DRM_IOCTL32_DEF(DRM_IOCTL_RM_MAP, compat_drm_rmmap), |
7900c600 | 932 | DRM_IOCTL32_DEF(DRM_IOCTL_SET_SAREA_CTX, compat_drm_setsareactx), |
d7631e30 | 933 | DRM_IOCTL32_DEF(DRM_IOCTL_GET_SAREA_CTX, compat_drm_getsareactx), |
9e075680 | 934 | DRM_IOCTL32_DEF(DRM_IOCTL_RES_CTX, compat_drm_resctx), |
c6f08966 | 935 | DRM_IOCTL32_DEF(DRM_IOCTL_DMA, compat_drm_dma), |
61ae2270 | 936 | #endif |
a7fb8a23 | 937 | #if IS_ENABLED(CONFIG_AGP) |
e92673ed AV |
938 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_ENABLE, compat_drm_agp_enable), |
939 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_INFO, compat_drm_agp_info), | |
940 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_ALLOC, compat_drm_agp_alloc), | |
941 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_FREE, compat_drm_agp_free), | |
942 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_BIND, compat_drm_agp_bind), | |
943 | DRM_IOCTL32_DEF(DRM_IOCTL_AGP_UNBIND, compat_drm_agp_unbind), | |
9a186645 | 944 | #endif |
61ae2270 | 945 | #if IS_ENABLED(CONFIG_DRM_LEGACY) |
314ed736 AV |
946 | DRM_IOCTL32_DEF(DRM_IOCTL_SG_ALLOC, compat_drm_sg_alloc), |
947 | DRM_IOCTL32_DEF(DRM_IOCTL_SG_FREE, compat_drm_sg_free), | |
61ae2270 | 948 | #endif |
09e40d65 | 949 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
1a36bf1d | 950 | DRM_IOCTL32_DEF(DRM_IOCTL_UPDATE_DRAW, compat_drm_update_draw), |
09e40d65 | 951 | #endif |
d5288c88 | 952 | DRM_IOCTL32_DEF(DRM_IOCTL_WAIT_VBLANK, compat_drm_wait_vblank), |
a988588b | 953 | #if defined(CONFIG_X86) || defined(CONFIG_IA64) |
d6c56613 | 954 | DRM_IOCTL32_DEF(DRM_IOCTL_MODE_ADDFB2, compat_drm_mode_addfb2), |
a988588b | 955 | #endif |
9a186645 DA |
956 | }; |
957 | ||
958 | /** | |
2640981f DV |
959 | * drm_compat_ioctl - 32bit IOCTL compatibility handler for DRM drivers |
960 | * @filp: file this ioctl is called on | |
961 | * @cmd: ioctl cmd number | |
962 | * @arg: user argument | |
963 | * | |
964 | * Compatibility handler for 32 bit userspace running on 64 kernels. All actual | |
965 | * IOCTL handling is forwarded to drm_ioctl(), while marshalling structures as | |
966 | * appropriate. Note that this only handles DRM core IOCTLs, if the driver has | |
967 | * botched IOCTL itself, it must handle those by wrapping this function. | |
9a186645 | 968 | * |
2640981f DV |
969 | * Returns: |
970 | * Zero on success, negative error code on failure. | |
9a186645 DA |
971 | */ |
972 | long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) | |
973 | { | |
974 | unsigned int nr = DRM_IOCTL_NR(cmd); | |
88e3cb07 | 975 | struct drm_file *file_priv = filp->private_data; |
9a186645 DA |
976 | drm_ioctl_compat_t *fn; |
977 | int ret; | |
978 | ||
7ffa05e0 IR |
979 | /* Assume that ioctls without an explicit compat routine will just |
980 | * work. This may not always be a good assumption, but it's better | |
981 | * than always failing. | |
982 | */ | |
3d77461e | 983 | if (nr >= ARRAY_SIZE(drm_compat_ioctls)) |
ed8b6704 | 984 | return drm_ioctl(filp, cmd, arg); |
9a186645 | 985 | |
9f43e542 AV |
986 | fn = drm_compat_ioctls[nr].fn; |
987 | if (!fn) | |
988 | return drm_ioctl(filp, cmd, arg); | |
9a186645 | 989 | |
5a2ba992 EV |
990 | DRM_DEBUG("comm=\"%s\", pid=%d, dev=0x%lx, auth=%d, %s\n", |
991 | current->comm, task_pid_nr(current), | |
88e3cb07 AV |
992 | (long)old_encode_dev(file_priv->minor->kdev->devt), |
993 | file_priv->authenticated, | |
994 | drm_compat_ioctls[nr].name); | |
995 | ret = (*fn)(filp, cmd, arg); | |
996 | if (ret) | |
997 | DRM_DEBUG("ret = %d\n", ret); | |
9a186645 DA |
998 | return ret; |
999 | } | |
1000 | EXPORT_SYMBOL(drm_compat_ioctl); |