xref: /freebsd/sys/dev/drm2/drm_ioc32.c (revision d6b92ffa)
1 /*-
2  * Copyright (C) Paul Mackerras 2005.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the next
13  * paragraph) shall be included in all copies or substantial portions of the
14  * Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22  * IN THE SOFTWARE.
23  */
24 
25 #include <sys/cdefs.h>
26 __FBSDID("$FreeBSD$");
27 
28 #include "opt_compat.h"
29 
30 #ifdef COMPAT_FREEBSD32
31 
32 #include <dev/drm2/drmP.h>
33 #include <dev/drm2/drm.h>
34 
35 #define DRM_IOCTL_VERSION32		DRM_IOWR(0x00, drm_version32_t)
36 #define DRM_IOCTL_GET_UNIQUE32		DRM_IOWR(0x01, drm_unique32_t)
37 #define DRM_IOCTL_GET_MAP32		DRM_IOWR(0x04, drm_map32_t)
38 #define DRM_IOCTL_GET_CLIENT32		DRM_IOWR(0x05, drm_client32_t)
39 #define DRM_IOCTL_GET_STATS32		DRM_IOR( 0x06, drm_stats32_t)
40 
41 #define DRM_IOCTL_SET_UNIQUE32		DRM_IOW( 0x10, drm_unique32_t)
42 #define DRM_IOCTL_ADD_MAP32		DRM_IOWR(0x15, drm_map32_t)
43 #define DRM_IOCTL_ADD_BUFS32		DRM_IOWR(0x16, drm_buf_desc32_t)
44 #define DRM_IOCTL_MARK_BUFS32		DRM_IOW( 0x17, drm_buf_desc32_t)
45 #define DRM_IOCTL_INFO_BUFS32		DRM_IOWR(0x18, drm_buf_info32_t)
46 #define DRM_IOCTL_MAP_BUFS32		DRM_IOWR(0x19, drm_buf_map32_t)
47 #define DRM_IOCTL_FREE_BUFS32		DRM_IOW( 0x1a, drm_buf_free32_t)
48 
49 #define DRM_IOCTL_RM_MAP32		DRM_IOW( 0x1b, drm_map32_t)
50 
51 #define DRM_IOCTL_SET_SAREA_CTX32	DRM_IOW( 0x1c, drm_ctx_priv_map32_t)
52 #define DRM_IOCTL_GET_SAREA_CTX32	DRM_IOWR(0x1d, drm_ctx_priv_map32_t)
53 
54 #define DRM_IOCTL_RES_CTX32		DRM_IOWR(0x26, drm_ctx_res32_t)
55 #define DRM_IOCTL_DMA32			DRM_IOWR(0x29, drm_dma32_t)
56 
57 #define DRM_IOCTL_AGP_ENABLE32		DRM_IOW( 0x32, drm_agp_mode32_t)
58 #define DRM_IOCTL_AGP_INFO32		DRM_IOR( 0x33, drm_agp_info32_t)
59 #define DRM_IOCTL_AGP_ALLOC32		DRM_IOWR(0x34, drm_agp_buffer32_t)
60 #define DRM_IOCTL_AGP_FREE32		DRM_IOW( 0x35, drm_agp_buffer32_t)
61 #define DRM_IOCTL_AGP_BIND32		DRM_IOW( 0x36, drm_agp_binding32_t)
62 #define DRM_IOCTL_AGP_UNBIND32		DRM_IOW( 0x37, drm_agp_binding32_t)
63 
64 #define DRM_IOCTL_SG_ALLOC32		DRM_IOW( 0x38, drm_scatter_gather32_t)
65 #define DRM_IOCTL_SG_FREE32		DRM_IOW( 0x39, drm_scatter_gather32_t)
66 
67 #define DRM_IOCTL_UPDATE_DRAW32		DRM_IOW( 0x3f, drm_update_draw32_t)
68 
69 #define DRM_IOCTL_WAIT_VBLANK32		DRM_IOWR(0x3a, drm_wait_vblank32_t)
70 
71 typedef struct drm_version_32 {
72 	int version_major;	  /**< Major version */
73 	int version_minor;	  /**< Minor version */
74 	int version_patchlevel;	   /**< Patch level */
75 	u32 name_len;		  /**< Length of name buffer */
76 	u32 name;		  /**< Name of driver */
77 	u32 date_len;		  /**< Length of date buffer */
78 	u32 date;		  /**< User-space buffer to hold date */
79 	u32 desc_len;		  /**< Length of desc buffer */
80 	u32 desc;		  /**< User-space buffer to hold desc */
81 } drm_version32_t;
82 
83 static int compat_drm_version(struct drm_device *dev, void *data,
84     struct drm_file *file_priv)
85 {
86 	drm_version32_t *v32 = data;
87 	struct drm_version version;
88 	int err;
89 
90 	version.name_len = v32->name_len;
91 	version.name = (void *)(unsigned long)v32->name;
92 	version.date_len = v32->date_len;
93 	version.date = (void *)(unsigned long)v32->date;
94 	version.desc_len = v32->desc_len;
95 	version.desc = (void *)(unsigned long)v32->desc;
96 
97 	err = drm_version(dev, (void *)&version, file_priv);
98 	if (err)
99 		return err;
100 
101 	v32->version_major = version.version_major;
102 	v32->version_minor = version.version_minor;
103 	v32->version_patchlevel = version.version_patchlevel;
104 	v32->name_len = version.name_len;
105 	v32->date_len = version.date_len;
106 	v32->desc_len = version.desc_len;
107 
108 	return 0;
109 }
110 
111 typedef struct drm_unique32 {
112 	u32 unique_len;	/**< Length of unique */
113 	u32 unique;	/**< Unique name for driver instantiation */
114 } drm_unique32_t;
115 
116 static int compat_drm_getunique(struct drm_device *dev, void *data,
117     struct drm_file *file_priv)
118 {
119 	drm_unique32_t *uq32 = data;
120 	struct drm_unique u;
121 	int err;
122 
123 	u.unique_len = uq32->unique_len;
124 	u.unique = (void *)(unsigned long)uq32->unique;
125 
126 	err = drm_getunique(dev, (void *)&u, file_priv);
127 	if (err)
128 		return err;
129 
130 	uq32->unique_len = u.unique_len;
131 
132 	return 0;
133 }
134 
135 static int compat_drm_setunique(struct drm_device *dev, void *data,
136     struct drm_file *file_priv)
137 {
138 	drm_unique32_t *uq32 = data;
139 	struct drm_unique u;
140 
141 	u.unique_len = uq32->unique_len;
142 	u.unique = (void *)(unsigned long)uq32->unique;
143 
144 	return drm_setunique(dev, (void *)&u, file_priv);
145 }
146 
147 typedef struct drm_map32 {
148 	u32 offset;		/**< Requested physical address (0 for SAREA)*/
149 	u32 size;		/**< Requested physical size (bytes) */
150 	enum drm_map_type type;	/**< Type of memory to map */
151 	enum drm_map_flags flags;	/**< Flags */
152 	u32 handle;		/**< User-space: "Handle" to pass to mmap() */
153 	int mtrr;		/**< MTRR slot used */
154 } drm_map32_t;
155 
156 static int compat_drm_getmap(struct drm_device *dev, void *data,
157     struct drm_file *file_priv)
158 {
159 	drm_map32_t *m32 = data;
160 	struct drm_map map;
161 	int err;
162 	void *handle;
163 
164 	map.offset = (unsigned long)m32->offset;
165 
166 	err = drm_getmap(dev, (void *)&map, file_priv);
167 	if (err)
168 		return err;
169 
170 	m32->offset = map.offset;
171 	m32->size = map.size;
172 	m32->type = map.type;
173 	m32->flags = map.flags;
174 	handle = map.handle;
175 	m32->mtrr = map.mtrr;
176 
177 	m32->handle = (unsigned long)handle;
178 
179 	return 0;
180 
181 }
182 
183 static int compat_drm_addmap(struct drm_device *dev, void *data,
184     struct drm_file *file_priv)
185 {
186 	drm_map32_t *m32 = data;
187 	struct drm_map map;
188 	int err;
189 	void *handle;
190 
191 	map.offset = (unsigned long)m32->offset;
192 	map.size = (unsigned long)m32->size;
193 	map.type = m32->type;
194 	map.flags = m32->flags;
195 
196 	err = drm_addmap_ioctl(dev, (void *)&map, file_priv);
197 	if (err)
198 		return err;
199 
200 	m32->offset = map.offset;
201 	m32->mtrr = map.mtrr;
202 	handle = map.handle;
203 
204 	m32->handle = (unsigned long)handle;
205 	if (m32->handle != (unsigned long)handle)
206 		DRM_DEBUG("compat_drm_addmap truncated handle"
207 				   " %p for type %d offset %x\n",
208 				   handle, m32->type, m32->offset);
209 
210 	return 0;
211 }
212 
213 static int compat_drm_rmmap(struct drm_device *dev, void *data,
214     struct drm_file *file_priv)
215 {
216 	drm_map32_t *m32 = data;
217 	struct drm_map map;
218 
219 	map.handle = (void *)(unsigned long)m32->handle;
220 
221 	return drm_rmmap_ioctl(dev, (void *)&map, file_priv);
222 }
223 
224 typedef struct drm_client32 {
225 	int idx;	/**< Which client desired? */
226 	int auth;	/**< Is client authenticated? */
227 	u32 pid;	/**< Process ID */
228 	u32 uid;	/**< User ID */
229 	u32 magic;	/**< Magic */
230 	u32 iocs;	/**< Ioctl count */
231 } drm_client32_t;
232 
233 static int compat_drm_getclient(struct drm_device *dev, void *data,
234     struct drm_file *file_priv)
235 {
236 	drm_client32_t *c32 = data;
237 	struct drm_client client;
238 	int err;
239 
240 	client.idx = c32->idx;
241 
242 	err = drm_getclient(dev, (void *)&client, file_priv);
243 	if (err)
244 		return err;
245 
246 	c32->idx = client.idx;
247 	c32->auth = client.auth;
248 	c32->pid = client.pid;
249 	c32->uid = client.uid;
250 	c32->magic = client.magic;
251 	c32->iocs = client.iocs;
252 
253 	return 0;
254 }
255 
256 typedef struct drm_stats32 {
257 	u32 count;
258 	struct {
259 		u32 value;
260 		enum drm_stat_type type;
261 	} data[15];
262 } drm_stats32_t;
263 
264 static int compat_drm_getstats(struct drm_device *dev, void *data,
265     struct drm_file *file_priv)
266 {
267 	drm_stats32_t *s32 = data;
268 	struct drm_stats stats;
269 	int i, err;
270 
271 	err = drm_getstats(dev, (void *)&stats, file_priv);
272 	if (err)
273 		return err;
274 
275 	s32->count = stats.count;
276 	for (i = 0; i < stats.count; i++) {
277 		s32->data[i].value = stats.data[i].value;
278 		s32->data[i].type = stats.data[i].type;
279 	}
280 
281 	return 0;
282 }
283 
284 typedef struct drm_buf_desc32 {
285 	int count;		 /**< Number of buffers of this size */
286 	int size;		 /**< Size in bytes */
287 	int low_mark;		 /**< Low water mark */
288 	int high_mark;		 /**< High water mark */
289 	int flags;
290 	u32 agp_start;		 /**< Start address in the AGP aperture */
291 } drm_buf_desc32_t;
292 
293 static int compat_drm_addbufs(struct drm_device *dev, void *data,
294     struct drm_file *file_priv)
295 {
296 	drm_buf_desc32_t *b32 = data;
297 	struct drm_buf_desc buf;
298 	int err;
299 
300 	buf.count = b32->count;
301 	buf.size = b32->size;
302 	buf.low_mark = b32->low_mark;
303 	buf.high_mark = b32->high_mark;
304 	buf.flags = b32->flags;
305 	buf.agp_start = (unsigned long)b32->agp_start;
306 
307 	err = drm_addbufs(dev, (void *)&buf, file_priv);
308 	if (err)
309 		return err;
310 
311 	b32->count = buf.count;
312 	b32->size = buf.size;
313 	b32->low_mark = buf.low_mark;
314 	b32->high_mark = buf.high_mark;
315 	b32->flags = buf.flags;
316 	b32->agp_start = buf.agp_start;
317 
318 	return 0;
319 }
320 
321 static int compat_drm_markbufs(struct drm_device *dev, void *data,
322     struct drm_file *file_priv)
323 {
324 	drm_buf_desc32_t *b32 = data;
325 	struct drm_buf_desc buf;
326 
327 	buf.size = b32->size;
328 	buf.low_mark = b32->low_mark;
329 	buf.high_mark = b32->high_mark;
330 
331 	return drm_markbufs(dev, (void *)&buf, file_priv);
332 }
333 
334 typedef struct drm_buf_info32 {
335 	int count;		/**< Entries in list */
336 	u32 list;
337 } drm_buf_info32_t;
338 
339 static int compat_drm_infobufs(struct drm_device *dev, void *data,
340     struct drm_file *file_priv)
341 {
342 	drm_buf_info32_t *req32 = data;
343 	drm_buf_desc32_t *to;
344 	struct drm_buf_info *request;
345 	struct drm_buf_desc *list;
346 	size_t nbytes;
347 	int i, err;
348 	int count, actual;
349 
350 	count = req32->count;
351 	to = (drm_buf_desc32_t *)(unsigned long)req32->list;
352 	if (count < 0)
353 		count = 0;
354 
355 	nbytes = sizeof(*request) + count * sizeof(struct drm_buf_desc);
356 	request = malloc(nbytes, DRM_MEM_BUFLISTS, M_ZERO | M_NOWAIT);
357 	if (!request)
358 		return -ENOMEM;
359 	list = (struct drm_buf_desc *) (request + 1);
360 
361 	request->count = count;
362 	request->list = list;
363 
364 	err = drm_infobufs(dev, (void *)request, file_priv);
365 	if (err)
366 		return err;
367 
368 	actual = request->count;
369 	if (count >= actual)
370 		for (i = 0; i < actual; ++i) {
371 			to[i].count = list[i].count;
372 			to[i].size = list[i].size;
373 			to[i].low_mark = list[i].low_mark;
374 			to[i].high_mark = list[i].high_mark;
375 			to[i].flags = list[i].flags;
376 		}
377 
378 	req32->count = actual;
379 
380 	return 0;
381 }
382 
383 typedef struct drm_buf_pub32 {
384 	int idx;		/**< Index into the master buffer list */
385 	int total;		/**< Buffer size */
386 	int used;		/**< Amount of buffer in use (for DMA) */
387 	u32 address;		/**< Address of buffer */
388 } drm_buf_pub32_t;
389 
390 typedef struct drm_buf_map32 {
391 	int count;		/**< Length of the buffer list */
392 	u32 virtual;		/**< Mmap'd area in user-virtual */
393 	u32 list;		/**< Buffer information */
394 } drm_buf_map32_t;
395 
396 static int compat_drm_mapbufs(struct drm_device *dev, void *data,
397     struct drm_file *file_priv)
398 {
399 	drm_buf_map32_t *req32 = data;
400 	drm_buf_pub32_t *list32;
401 	struct drm_buf_map *request;
402 	struct drm_buf_pub *list;
403 	int i, err;
404 	int count, actual;
405 	size_t nbytes;
406 
407 	count = req32->count;
408 	list32 = (void *)(unsigned long)req32->list;
409 
410 	if (count < 0)
411 		return -EINVAL;
412 	nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub);
413 	request = malloc(nbytes, DRM_MEM_BUFLISTS, M_ZERO | M_NOWAIT);
414 	if (!request)
415 		return -ENOMEM;
416 	list = (struct drm_buf_pub *) (request + 1);
417 
418 	request->count = count;
419 	request->list = list;
420 
421 	err = drm_mapbufs(dev, (void *)request, file_priv);
422 	if (err)
423 		return err;
424 
425 	actual = request->count;
426 	if (count >= actual)
427 		for (i = 0; i < actual; ++i) {
428 			list32[i].idx = list[i].idx;
429 			list32[i].total = list[i].total;
430 			list32[i].used = list[i].used;
431 			list32[i].address = (unsigned long)list[i].address;
432 		}
433 
434 	req32->count = actual;
435 	req32->virtual = (unsigned long)request->virtual;
436 
437 	return 0;
438 }
439 
440 typedef struct drm_buf_free32 {
441 	int count;
442 	u32 list;
443 } drm_buf_free32_t;
444 
445 static int compat_drm_freebufs(struct drm_device *dev, void *data,
446     struct drm_file *file_priv)
447 {
448 	drm_buf_free32_t *req32 = data;
449 	struct drm_buf_free request;
450 
451 	request.count = req32->count;
452 	request.list = (int *)(unsigned long)req32->list;
453 
454 	return drm_freebufs(dev, (void *)&request, file_priv);
455 }
456 
457 typedef struct drm_ctx_priv_map32 {
458 	unsigned int ctx_id;	 /**< Context requesting private mapping */
459 	u32 handle;		/**< Handle of map */
460 } drm_ctx_priv_map32_t;
461 
462 static int compat_drm_setsareactx(struct drm_device *dev, void *data,
463     struct drm_file *file_priv)
464 {
465 	drm_ctx_priv_map32_t *req32 = data;
466 	struct drm_ctx_priv_map request;
467 
468 	request.ctx_id = req32->ctx_id;
469 	request.handle = (void *)(unsigned long)req32->handle;
470 
471 	return drm_setsareactx(dev, (void *)&request, file_priv);
472 }
473 
474 static int compat_drm_getsareactx(struct drm_device *dev, void *data,
475     struct drm_file *file_priv)
476 {
477 	drm_ctx_priv_map32_t *req32 = data;
478 	struct drm_ctx_priv_map request;
479 	int err;
480 
481 	request.ctx_id = req32->ctx_id;
482 
483 	err = drm_getsareactx(dev, (void *)&request, file_priv);
484 	if (err)
485 		return err;
486 
487 	req32->handle = (unsigned long)request.handle;
488 
489 	return 0;
490 }
491 
492 typedef struct drm_ctx_res32 {
493 	int count;
494 	u32 contexts;
495 } drm_ctx_res32_t;
496 
497 static int compat_drm_resctx(struct drm_device *dev, void *data,
498     struct drm_file *file_priv)
499 {
500 	drm_ctx_res32_t *res32 = data;
501 	struct drm_ctx_res res;
502 	int err;
503 
504 	res.count = res32->count;
505 	res.contexts = (struct drm_ctx __user *)(unsigned long)res32->contexts;
506 
507 	err = drm_resctx(dev, (void *)&res, file_priv);
508 	if (err)
509 		return err;
510 
511 	res32->count = res.count;
512 
513 	return 0;
514 }
515 
516 typedef struct drm_dma32 {
517 	int context;		  /**< Context handle */
518 	int send_count;		  /**< Number of buffers to send */
519 	u32 send_indices;	  /**< List of handles to buffers */
520 	u32 send_sizes;		  /**< Lengths of data to send */
521 	enum drm_dma_flags flags;		  /**< Flags */
522 	int request_count;	  /**< Number of buffers requested */
523 	int request_size;	  /**< Desired size for buffers */
524 	u32 request_indices;	  /**< Buffer information */
525 	u32 request_sizes;
526 	int granted_count;	  /**< Number of buffers granted */
527 } drm_dma32_t;
528 
529 static int compat_drm_dma(struct drm_device *dev, void *data,
530     struct drm_file *file_priv)
531 {
532 	drm_dma32_t *d32 = data;
533 	struct drm_dma d;
534 	int err;
535 
536 	if (!dev->driver->dma_ioctl) {
537 		DRM_DEBUG("DMA ioctl on driver with no dma handler\n");
538 		return -EINVAL;
539 	}
540 
541 	d.context = d32->context;
542 	d.send_count = d32->send_count;
543 	d.send_indices = (int *)(unsigned long)d32->send_indices;
544 	d.send_sizes = (int *)(unsigned long)d32->send_sizes;
545 	d.flags = d32->flags;
546 	d.request_count = d32->request_count;
547 	d.request_indices = (int *)(unsigned long)d32->request_indices;
548 	d.request_sizes = (int *)(unsigned long)d32->request_sizes;
549 
550 	err = dev->driver->dma_ioctl(dev, (void *)&d, file_priv);
551 	if (err)
552 		return err;
553 
554 	d32->request_size = d.request_size;
555 	d32->granted_count = d.granted_count;
556 
557 	return 0;
558 }
559 
560 #if __OS_HAS_AGP
561 typedef struct drm_agp_mode32 {
562 	u32 mode;	/**< AGP mode */
563 } drm_agp_mode32_t;
564 
565 static int compat_drm_agp_enable(struct drm_device *dev, void *data,
566     struct drm_file *file_priv)
567 {
568 	drm_agp_mode32_t *m32 = data;
569 	struct drm_agp_mode mode;
570 
571 	mode.mode = m32->mode;
572 
573 	return drm_agp_enable_ioctl(dev, (void *)&mode, file_priv);
574 }
575 
576 typedef struct drm_agp_info32 {
577 	int agp_version_major;
578 	int agp_version_minor;
579 	u32 mode;
580 	u32 aperture_base;	/* physical address */
581 	u32 aperture_size;	/* bytes */
582 	u32 memory_allowed;	/* bytes */
583 	u32 memory_used;
584 
585 	/* PCI information */
586 	unsigned short id_vendor;
587 	unsigned short id_device;
588 } drm_agp_info32_t;
589 
590 static int compat_drm_agp_info(struct drm_device *dev, void *data,
591     struct drm_file *file_priv)
592 {
593 	drm_agp_info32_t *i32 = data;
594 	struct drm_agp_info info;
595 	int err;
596 
597 	err = drm_agp_info_ioctl(dev, (void *)&info, file_priv);
598 	if (err)
599 		return err;
600 
601 	i32->agp_version_major = info.agp_version_major;
602 	i32->agp_version_minor = info.agp_version_minor;
603 	i32->mode = info.mode;
604 	i32->aperture_base = info.aperture_base;
605 	i32->aperture_size = info.aperture_size;
606 	i32->memory_allowed = info.memory_allowed;
607 	i32->memory_used = info.memory_used;
608 	i32->id_vendor = info.id_vendor;
609 	i32->id_device = info.id_device;
610 
611 	return 0;
612 }
613 
614 typedef struct drm_agp_buffer32 {
615 	u32 size;	/**< In bytes -- will round to page boundary */
616 	u32 handle;	/**< Used for binding / unbinding */
617 	u32 type;	/**< Type of memory to allocate */
618 	u32 physical;	/**< Physical used by i810 */
619 } drm_agp_buffer32_t;
620 
621 static int compat_drm_agp_alloc(struct drm_device *dev, void *data,
622     struct drm_file *file_priv)
623 {
624 	drm_agp_buffer32_t *req32 = data;
625 	struct drm_agp_buffer request;
626 	int err;
627 
628 	request.size = req32->size;
629 	request.type = req32->type;
630 
631 	err = drm_agp_alloc_ioctl(dev, (void *)&request, file_priv);
632 	if (err)
633 		return err;
634 
635 	req32->handle = request.handle;
636 	req32->physical = request.physical;
637 
638 	return 0;
639 }
640 
641 static int compat_drm_agp_free(struct drm_device *dev, void *data,
642     struct drm_file *file_priv)
643 {
644 	drm_agp_buffer32_t *req32 = data;
645 	struct drm_agp_buffer request;
646 
647 	request.handle = req32->handle;
648 
649 	return drm_agp_free_ioctl(dev, (void *)&request, file_priv);
650 }
651 
652 typedef struct drm_agp_binding32 {
653 	u32 handle;	/**< From drm_agp_buffer */
654 	u32 offset;	/**< In bytes -- will round to page boundary */
655 } drm_agp_binding32_t;
656 
657 static int compat_drm_agp_bind(struct drm_device *dev, void *data,
658     struct drm_file *file_priv)
659 {
660 	drm_agp_binding32_t *req32 = data;
661 	struct drm_agp_binding request;
662 
663 	request.handle = req32->handle;
664 	request.offset = req32->offset;
665 
666 	return drm_agp_bind_ioctl(dev, (void *)&request, file_priv);
667 }
668 
669 static int compat_drm_agp_unbind(struct drm_device *dev, void *data,
670     struct drm_file *file_priv)
671 {
672 	drm_agp_binding32_t *req32 = data;
673 	struct drm_agp_binding request;
674 
675 	request.handle = req32->handle;
676 
677 	return drm_agp_unbind_ioctl(dev, (void *)&request, file_priv);
678 }
679 #endif				/* __OS_HAS_AGP */
680 
681 typedef struct drm_scatter_gather32 {
682 	u32 size;	/**< In bytes -- will round to page boundary */
683 	u32 handle;	/**< Used for mapping / unmapping */
684 } drm_scatter_gather32_t;
685 
686 static int compat_drm_sg_alloc(struct drm_device *dev, void *data,
687     struct drm_file *file_priv)
688 {
689 	drm_scatter_gather32_t *req32 = data;
690 	struct drm_scatter_gather request;
691 	int err;
692 
693 	request.size = (unsigned long)req32->size;
694 
695 	err = drm_sg_alloc_ioctl(dev, (void *)&request, file_priv);
696 	if (err)
697 		return err;
698 
699 	/* XXX not sure about the handle conversion here... */
700 	req32->handle = (unsigned long)request.handle >> PAGE_SHIFT;
701 
702 	return 0;
703 }
704 
705 static int compat_drm_sg_free(struct drm_device *dev, void *data,
706     struct drm_file *file_priv)
707 {
708 	drm_scatter_gather32_t *req32 = data;
709 	struct drm_scatter_gather request;
710 
711 	request.handle = (unsigned long)req32->handle << PAGE_SHIFT;
712 
713 	return drm_sg_free(dev, (void *)&request, file_priv);
714 }
715 
716 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
717 typedef struct drm_update_draw32 {
718 	drm_drawable_t handle;
719 	unsigned int type;
720 	unsigned int num;
721 	/* 64-bit version has a 32-bit pad here */
722 	u64 data;	/**< Pointer */
723 } __attribute__((packed)) drm_update_draw32_t;
724 #endif
725 
726 struct drm_wait_vblank_request32 {
727 	enum drm_vblank_seq_type type;
728 	unsigned int sequence;
729 	u32 signal;
730 };
731 
732 struct drm_wait_vblank_reply32 {
733 	enum drm_vblank_seq_type type;
734 	unsigned int sequence;
735 	s32 tval_sec;
736 	s32 tval_usec;
737 };
738 
739 typedef union drm_wait_vblank32 {
740 	struct drm_wait_vblank_request32 request;
741 	struct drm_wait_vblank_reply32 reply;
742 } drm_wait_vblank32_t;
743 
744 static int compat_drm_wait_vblank(struct drm_device *dev, void *data,
745     struct drm_file *file_priv)
746 {
747 	drm_wait_vblank32_t *req32 = data;
748 	union drm_wait_vblank request;
749 	int err;
750 
751 	request.request.type = req32->request.type;
752 	request.request.sequence = req32->request.sequence;
753 	request.request.signal = req32->request.signal;
754 
755 	err = drm_wait_vblank(dev, (void *)&request, file_priv);
756 	if (err)
757 		return err;
758 
759 	req32->reply.type = request.reply.type;
760 	req32->reply.sequence = request.reply.sequence;
761 	req32->reply.tval_sec = request.reply.tval_sec;
762 	req32->reply.tval_usec = request.reply.tval_usec;
763 
764 	return 0;
765 }
766 
767 struct drm_ioctl_desc drm_compat_ioctls[256] = {
768 	DRM_IOCTL_DEF(DRM_IOCTL_VERSION32, compat_drm_version, DRM_UNLOCKED),
769 	DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE32, compat_drm_getunique, 0),
770 	DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP32, compat_drm_getmap, DRM_UNLOCKED),
771 	DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT32, compat_drm_getclient, DRM_UNLOCKED),
772 	DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS32, compat_drm_getstats, DRM_UNLOCKED),
773 	DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE32, compat_drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
774 	DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP32, compat_drm_addmap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
775 	DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS32, compat_drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
776 	DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS32, compat_drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
777 	DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS32, compat_drm_infobufs, DRM_AUTH),
778 	DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS32, compat_drm_mapbufs, DRM_AUTH),
779 	DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS32, compat_drm_freebufs, DRM_AUTH),
780 	DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP32, compat_drm_rmmap, DRM_AUTH),
781 	DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX32, compat_drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
782 	DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX32, compat_drm_getsareactx, DRM_AUTH),
783 	DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX32, compat_drm_resctx, DRM_AUTH),
784 	DRM_IOCTL_DEF(DRM_IOCTL_DMA32, compat_drm_dma, DRM_AUTH),
785 #if __OS_HAS_AGP
786 	DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE32, compat_drm_agp_enable, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
787 	DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO32, compat_drm_agp_info, DRM_AUTH),
788 	DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC32, compat_drm_agp_alloc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
789 	DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE32, compat_drm_agp_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
790 	DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND32, compat_drm_agp_bind, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
791 	DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND32, compat_drm_agp_unbind, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
792 #endif
793 	DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC32, compat_drm_sg_alloc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
794 	DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE32, compat_drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
795 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
796 	DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW32, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
797 #endif
798 	DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK32, compat_drm_wait_vblank, DRM_UNLOCKED),
799 };
800 
801 #endif
802