Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
/*-
 * Copyright (C) Paul Mackerras 2005.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#ifdef COMPAT_FREEBSD32

#include <dev/drm2/drmP.h>
#include <dev/drm2/drm.h>

#define DRM_IOCTL_VERSION32		DRM_IOWR(0x00, drm_version32_t)
#define DRM_IOCTL_GET_UNIQUE32		DRM_IOWR(0x01, drm_unique32_t)
#define DRM_IOCTL_GET_MAP32		DRM_IOWR(0x04, drm_map32_t)
#define DRM_IOCTL_GET_CLIENT32		DRM_IOWR(0x05, drm_client32_t)
#define DRM_IOCTL_GET_STATS32		DRM_IOR( 0x06, drm_stats32_t)

#define DRM_IOCTL_SET_UNIQUE32		DRM_IOW( 0x10, drm_unique32_t)
#define DRM_IOCTL_ADD_MAP32		DRM_IOWR(0x15, drm_map32_t)
#define DRM_IOCTL_ADD_BUFS32		DRM_IOWR(0x16, drm_buf_desc32_t)
#define DRM_IOCTL_MARK_BUFS32		DRM_IOW( 0x17, drm_buf_desc32_t)
#define DRM_IOCTL_INFO_BUFS32		DRM_IOWR(0x18, drm_buf_info32_t)
#define DRM_IOCTL_MAP_BUFS32		DRM_IOWR(0x19, drm_buf_map32_t)
#define DRM_IOCTL_FREE_BUFS32		DRM_IOW( 0x1a, drm_buf_free32_t)

#define DRM_IOCTL_RM_MAP32		DRM_IOW( 0x1b, drm_map32_t)

#define DRM_IOCTL_SET_SAREA_CTX32	DRM_IOW( 0x1c, drm_ctx_priv_map32_t)
#define DRM_IOCTL_GET_SAREA_CTX32	DRM_IOWR(0x1d, drm_ctx_priv_map32_t)

#define DRM_IOCTL_RES_CTX32		DRM_IOWR(0x26, drm_ctx_res32_t)
#define DRM_IOCTL_DMA32			DRM_IOWR(0x29, drm_dma32_t)

#define DRM_IOCTL_AGP_ENABLE32		DRM_IOW( 0x32, drm_agp_mode32_t)
#define DRM_IOCTL_AGP_INFO32		DRM_IOR( 0x33, drm_agp_info32_t)
#define DRM_IOCTL_AGP_ALLOC32		DRM_IOWR(0x34, drm_agp_buffer32_t)
#define DRM_IOCTL_AGP_FREE32		DRM_IOW( 0x35, drm_agp_buffer32_t)
#define DRM_IOCTL_AGP_BIND32		DRM_IOW( 0x36, drm_agp_binding32_t)
#define DRM_IOCTL_AGP_UNBIND32		DRM_IOW( 0x37, drm_agp_binding32_t)

#define DRM_IOCTL_SG_ALLOC32		DRM_IOW( 0x38, drm_scatter_gather32_t)
#define DRM_IOCTL_SG_FREE32		DRM_IOW( 0x39, drm_scatter_gather32_t)

#define DRM_IOCTL_UPDATE_DRAW32		DRM_IOW( 0x3f, drm_update_draw32_t)

#define DRM_IOCTL_WAIT_VBLANK32		DRM_IOWR(0x3a, drm_wait_vblank32_t)

typedef struct drm_version_32 {
	int version_major;	  /**< Major version */
	int version_minor;	  /**< Minor version */
	int version_patchlevel;	   /**< Patch level */
	u32 name_len;		  /**< Length of name buffer */
	u32 name;		  /**< Name of driver */
	u32 date_len;		  /**< Length of date buffer */
	u32 date;		  /**< User-space buffer to hold date */
	u32 desc_len;		  /**< Length of desc buffer */
	u32 desc;		  /**< User-space buffer to hold desc */
} drm_version32_t;

static int compat_drm_version(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_version32_t *v32 = data;
	struct drm_version version;
	int err;

	version.name_len = v32->name_len;
	version.name = (void *)(unsigned long)v32->name;
	version.date_len = v32->date_len;
	version.date = (void *)(unsigned long)v32->date;
	version.desc_len = v32->desc_len;
	version.desc = (void *)(unsigned long)v32->desc;

	err = drm_version(dev, (void *)&version, file_priv);
	if (err)
		return err;

	v32->version_major = version.version_major;
	v32->version_minor = version.version_minor;
	v32->version_patchlevel = version.version_patchlevel;
	v32->name_len = version.name_len;
	v32->date_len = version.date_len;
	v32->desc_len = version.desc_len;

	return 0;
}

typedef struct drm_unique32 {
	u32 unique_len;	/**< Length of unique */
	u32 unique;	/**< Unique name for driver instantiation */
} drm_unique32_t;

static int compat_drm_getunique(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_unique32_t *uq32 = data;
	struct drm_unique u;
	int err;

	u.unique_len = uq32->unique_len;
	u.unique = (void *)(unsigned long)uq32->unique;

	err = drm_getunique(dev, (void *)&u, file_priv);
	if (err)
		return err;

	uq32->unique_len = u.unique_len;

	return 0;
}

static int compat_drm_setunique(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_unique32_t *uq32 = data;
	struct drm_unique u;

	u.unique_len = uq32->unique_len;
	u.unique = (void *)(unsigned long)uq32->unique;

	return drm_setunique(dev, (void *)&u, file_priv);
}

typedef struct drm_map32 {
	u32 offset;		/**< Requested physical address (0 for SAREA)*/
	u32 size;		/**< Requested physical size (bytes) */
	enum drm_map_type type;	/**< Type of memory to map */
	enum drm_map_flags flags;	/**< Flags */
	u32 handle;		/**< User-space: "Handle" to pass to mmap() */
	int mtrr;		/**< MTRR slot used */
} drm_map32_t;

static int compat_drm_getmap(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_map32_t *m32 = data;
	struct drm_map map;
	int err;
	void *handle;

	map.offset = (unsigned long)m32->offset;

	err = drm_getmap(dev, (void *)&map, file_priv);
	if (err)
		return err;

	m32->offset = map.offset;
	m32->size = map.size;
	m32->type = map.type;
	m32->flags = map.flags;
	handle = map.handle;
	m32->mtrr = map.mtrr;

	m32->handle = (unsigned long)handle;

	return 0;

}

static int compat_drm_addmap(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_map32_t *m32 = data;
	struct drm_map map;
	int err;
	void *handle;

	map.offset = (unsigned long)m32->offset;
	map.size = (unsigned long)m32->size;
	map.type = m32->type;
	map.flags = m32->flags;

	err = drm_addmap_ioctl(dev, (void *)&map, file_priv);
	if (err)
		return err;

	m32->offset = map.offset;
	m32->mtrr = map.mtrr;
	handle = map.handle;

	m32->handle = (unsigned long)handle;
	if (m32->handle != (unsigned long)handle)
		DRM_DEBUG("compat_drm_addmap truncated handle"
				   " %p for type %d offset %x\n",
				   handle, m32->type, m32->offset);

	return 0;
}

static int compat_drm_rmmap(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_map32_t *m32 = data;
	struct drm_map map;

	map.handle = (void *)(unsigned long)m32->handle;

	return drm_rmmap_ioctl(dev, (void *)&map, file_priv);
}

typedef struct drm_client32 {
	int idx;	/**< Which client desired? */
	int auth;	/**< Is client authenticated? */
	u32 pid;	/**< Process ID */
	u32 uid;	/**< User ID */
	u32 magic;	/**< Magic */
	u32 iocs;	/**< Ioctl count */
} drm_client32_t;

static int compat_drm_getclient(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_client32_t *c32 = data;
	struct drm_client client;
	int err;

	client.idx = c32->idx;

	err = drm_getclient(dev, (void *)&client, file_priv);
	if (err)
		return err;

	c32->idx = client.idx;
	c32->auth = client.auth;
	c32->pid = client.pid;
	c32->uid = client.uid;
	c32->magic = client.magic;
	c32->iocs = client.iocs;

	return 0;
}

typedef struct drm_stats32 {
	u32 count;
	struct {
		u32 value;
		enum drm_stat_type type;
	} data[15];
} drm_stats32_t;

static int compat_drm_getstats(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_stats32_t *s32 = data;
	struct drm_stats stats;
	int i, err;

	err = drm_getstats(dev, (void *)&stats, file_priv);
	if (err)
		return err;

	s32->count = stats.count;
	for (i = 0; i < stats.count; i++) {
		s32->data[i].value = stats.data[i].value;
		s32->data[i].type = stats.data[i].type;
	}

	return 0;
}

typedef struct drm_buf_desc32 {
	int count;		 /**< Number of buffers of this size */
	int size;		 /**< Size in bytes */
	int low_mark;		 /**< Low water mark */
	int high_mark;		 /**< High water mark */
	int flags;
	u32 agp_start;		 /**< Start address in the AGP aperture */
} drm_buf_desc32_t;

static int compat_drm_addbufs(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_buf_desc32_t *b32 = data;
	struct drm_buf_desc buf;
	int err;

	buf.count = b32->count;
	buf.size = b32->size;
	buf.low_mark = b32->low_mark;
	buf.high_mark = b32->high_mark;
	buf.flags = b32->flags;
	buf.agp_start = (unsigned long)b32->agp_start;

	err = drm_addbufs(dev, (void *)&buf, file_priv);
	if (err)
		return err;

	b32->count = buf.count;
	b32->size = buf.size;
	b32->low_mark = buf.low_mark;
	b32->high_mark = buf.high_mark;
	b32->flags = buf.flags;
	b32->agp_start = buf.agp_start;

	return 0;
}

static int compat_drm_markbufs(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_buf_desc32_t *b32 = data;
	struct drm_buf_desc buf;

	buf.size = b32->size;
	buf.low_mark = b32->low_mark;
	buf.high_mark = b32->high_mark;

	return drm_markbufs(dev, (void *)&buf, file_priv);
}

typedef struct drm_buf_info32 {
	int count;		/**< Entries in list */
	u32 list;
} drm_buf_info32_t;

static int compat_drm_infobufs(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_buf_info32_t *req32 = data;
	drm_buf_desc32_t *to;
	struct drm_buf_info *request;
	struct drm_buf_desc *list;
	size_t nbytes;
	int i, err;
	int count, actual;

	count = req32->count;
	to = (drm_buf_desc32_t *)(unsigned long)req32->list;
	if (count < 0)
		count = 0;

	nbytes = sizeof(*request) + count * sizeof(struct drm_buf_desc);
	request = malloc(nbytes, DRM_MEM_BUFLISTS, M_ZERO | M_NOWAIT);
	if (!request)
		return -ENOMEM;
	list = (struct drm_buf_desc *) (request + 1);

	request->count = count;
	request->list = list;

	err = drm_infobufs(dev, (void *)request, file_priv);
	if (err)
		return err;

	actual = request->count;
	if (count >= actual)
		for (i = 0; i < actual; ++i) {
			to[i].count = list[i].count;
			to[i].size = list[i].size;
			to[i].low_mark = list[i].low_mark;
			to[i].high_mark = list[i].high_mark;
			to[i].flags = list[i].flags;
		}

	req32->count = actual;

	return 0;
}

typedef struct drm_buf_pub32 {
	int idx;		/**< Index into the master buffer list */
	int total;		/**< Buffer size */
	int used;		/**< Amount of buffer in use (for DMA) */
	u32 address;		/**< Address of buffer */
} drm_buf_pub32_t;

typedef struct drm_buf_map32 {
	int count;		/**< Length of the buffer list */
	u32 virtual;		/**< Mmap'd area in user-virtual */
	u32 list;		/**< Buffer information */
} drm_buf_map32_t;

static int compat_drm_mapbufs(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_buf_map32_t *req32 = data;
	drm_buf_pub32_t *list32;
	struct drm_buf_map *request;
	struct drm_buf_pub *list;
	int i, err;
	int count, actual;
	size_t nbytes;

	count = req32->count;
	list32 = (void *)(unsigned long)req32->list;

	if (count < 0)
		return -EINVAL;
	nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub);
	request = malloc(nbytes, DRM_MEM_BUFLISTS, M_ZERO | M_NOWAIT);
	if (!request)
		return -ENOMEM;
	list = (struct drm_buf_pub *) (request + 1);

	request->count = count;
	request->list = list;

	err = drm_mapbufs(dev, (void *)request, file_priv);
	if (err)
		return err;

	actual = request->count;
	if (count >= actual)
		for (i = 0; i < actual; ++i) {
			list32[i].idx = list[i].idx;
			list32[i].total = list[i].total;
			list32[i].used = list[i].used;
			list32[i].address = (unsigned long)list[i].address;
		}

	req32->count = actual;
	req32->virtual = (unsigned long)request->virtual;

	return 0;
}

typedef struct drm_buf_free32 {
	int count;
	u32 list;
} drm_buf_free32_t;

static int compat_drm_freebufs(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_buf_free32_t *req32 = data;
	struct drm_buf_free request;

	request.count = req32->count;
	request.list = (int *)(unsigned long)req32->list;

	return drm_freebufs(dev, (void *)&request, file_priv);
}

typedef struct drm_ctx_priv_map32 {
	unsigned int ctx_id;	 /**< Context requesting private mapping */
	u32 handle;		/**< Handle of map */
} drm_ctx_priv_map32_t;

static int compat_drm_setsareactx(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_ctx_priv_map32_t *req32 = data;
	struct drm_ctx_priv_map request;

	request.ctx_id = req32->ctx_id;
	request.handle = (void *)(unsigned long)req32->handle;

	return drm_setsareactx(dev, (void *)&request, file_priv);
}

static int compat_drm_getsareactx(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_ctx_priv_map32_t *req32 = data;
	struct drm_ctx_priv_map request;
	int err;

	request.ctx_id = req32->ctx_id;

	err = drm_getsareactx(dev, (void *)&request, file_priv);
	if (err)
		return err;

	req32->handle = (unsigned long)request.handle;

	return 0;
}

typedef struct drm_ctx_res32 {
	int count;
	u32 contexts;
} drm_ctx_res32_t;

static int compat_drm_resctx(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_ctx_res32_t *res32 = data;
	struct drm_ctx_res res;
	int err;

	res.count = res32->count;
	res.contexts = (struct drm_ctx __user *)(unsigned long)res32->contexts;

	err = drm_resctx(dev, (void *)&res, file_priv);
	if (err)
		return err;

	res32->count = res.count;

	return 0;
}

typedef struct drm_dma32 {
	int context;		  /**< Context handle */
	int send_count;		  /**< Number of buffers to send */
	u32 send_indices;	  /**< List of handles to buffers */
	u32 send_sizes;		  /**< Lengths of data to send */
	enum drm_dma_flags flags;		  /**< Flags */
	int request_count;	  /**< Number of buffers requested */
	int request_size;	  /**< Desired size for buffers */
	u32 request_indices;	  /**< Buffer information */
	u32 request_sizes;
	int granted_count;	  /**< Number of buffers granted */
} drm_dma32_t;

static int compat_drm_dma(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_dma32_t *d32 = data;
	struct drm_dma d;
	int err;

	if (!dev->driver->dma_ioctl) {
		DRM_DEBUG("DMA ioctl on driver with no dma handler\n");
		return -EINVAL;
	}

	d.context = d32->context;
	d.send_count = d32->send_count;
	d.send_indices = (int *)(unsigned long)d32->send_indices;
	d.send_sizes = (int *)(unsigned long)d32->send_sizes;
	d.flags = d32->flags;
	d.request_count = d32->request_count;
	d.request_indices = (int *)(unsigned long)d32->request_indices;
	d.request_sizes = (int *)(unsigned long)d32->request_sizes;

	err = dev->driver->dma_ioctl(dev, (void *)&d, file_priv);
	if (err)
		return err;

	d32->request_size = d.request_size;
	d32->granted_count = d.granted_count;

	return 0;
}

#if __OS_HAS_AGP
typedef struct drm_agp_mode32 {
	u32 mode;	/**< AGP mode */
} drm_agp_mode32_t;

static int compat_drm_agp_enable(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_agp_mode32_t *m32 = data;
	struct drm_agp_mode mode;

	mode.mode = m32->mode;

	return drm_agp_enable_ioctl(dev, (void *)&mode, file_priv);
}

typedef struct drm_agp_info32 {
	int agp_version_major;
	int agp_version_minor;
	u32 mode;
	u32 aperture_base;	/* physical address */
	u32 aperture_size;	/* bytes */
	u32 memory_allowed;	/* bytes */
	u32 memory_used;

	/* PCI information */
	unsigned short id_vendor;
	unsigned short id_device;
} drm_agp_info32_t;

static int compat_drm_agp_info(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_agp_info32_t *i32 = data;
	struct drm_agp_info info;
	int err;

	err = drm_agp_info_ioctl(dev, (void *)&info, file_priv);
	if (err)
		return err;

	i32->agp_version_major = info.agp_version_major;
	i32->agp_version_minor = info.agp_version_minor;
	i32->mode = info.mode;
	i32->aperture_base = info.aperture_base;
	i32->aperture_size = info.aperture_size;
	i32->memory_allowed = info.memory_allowed;
	i32->memory_used = info.memory_used;
	i32->id_vendor = info.id_vendor;
	i32->id_device = info.id_device;

	return 0;
}

typedef struct drm_agp_buffer32 {
	u32 size;	/**< In bytes -- will round to page boundary */
	u32 handle;	/**< Used for binding / unbinding */
	u32 type;	/**< Type of memory to allocate */
	u32 physical;	/**< Physical used by i810 */
} drm_agp_buffer32_t;

static int compat_drm_agp_alloc(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_agp_buffer32_t *req32 = data;
	struct drm_agp_buffer request;
	int err;

	request.size = req32->size;
	request.type = req32->type;

	err = drm_agp_alloc_ioctl(dev, (void *)&request, file_priv);
	if (err)
		return err;

	req32->handle = request.handle;
	req32->physical = request.physical;

	return 0;
}

static int compat_drm_agp_free(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_agp_buffer32_t *req32 = data;
	struct drm_agp_buffer request;

	request.handle = req32->handle;

	return drm_agp_free_ioctl(dev, (void *)&request, file_priv);
}

typedef struct drm_agp_binding32 {
	u32 handle;	/**< From drm_agp_buffer */
	u32 offset;	/**< In bytes -- will round to page boundary */
} drm_agp_binding32_t;

static int compat_drm_agp_bind(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_agp_binding32_t *req32 = data;
	struct drm_agp_binding request;

	request.handle = req32->handle;
	request.offset = req32->offset;

	return drm_agp_bind_ioctl(dev, (void *)&request, file_priv);
}

static int compat_drm_agp_unbind(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_agp_binding32_t *req32 = data;
	struct drm_agp_binding request;

	request.handle = req32->handle;

	return drm_agp_unbind_ioctl(dev, (void *)&request, file_priv);
}
#endif				/* __OS_HAS_AGP */

typedef struct drm_scatter_gather32 {
	u32 size;	/**< In bytes -- will round to page boundary */
	u32 handle;	/**< Used for mapping / unmapping */
} drm_scatter_gather32_t;

static int compat_drm_sg_alloc(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_scatter_gather32_t *req32 = data;
	struct drm_scatter_gather request;
	int err;

	request.size = (unsigned long)req32->size;

	err = drm_sg_alloc_ioctl(dev, (void *)&request, file_priv);
	if (err)
		return err;

	/* XXX not sure about the handle conversion here... */
	req32->handle = (unsigned long)request.handle >> PAGE_SHIFT;

	return 0;
}

static int compat_drm_sg_free(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_scatter_gather32_t *req32 = data;
	struct drm_scatter_gather request;

	request.handle = (unsigned long)req32->handle << PAGE_SHIFT;

	return drm_sg_free(dev, (void *)&request, file_priv);
}

#if defined(CONFIG_X86) || defined(CONFIG_IA64)
typedef struct drm_update_draw32 {
	drm_drawable_t handle;
	unsigned int type;
	unsigned int num;
	/* 64-bit version has a 32-bit pad here */
	u64 data;	/**< Pointer */
} __attribute__((packed)) drm_update_draw32_t;
#endif

struct drm_wait_vblank_request32 {
	enum drm_vblank_seq_type type;
	unsigned int sequence;
	u32 signal;
};

struct drm_wait_vblank_reply32 {
	enum drm_vblank_seq_type type;
	unsigned int sequence;
	s32 tval_sec;
	s32 tval_usec;
};

typedef union drm_wait_vblank32 {
	struct drm_wait_vblank_request32 request;
	struct drm_wait_vblank_reply32 reply;
} drm_wait_vblank32_t;

static int compat_drm_wait_vblank(struct drm_device *dev, void *data,
    struct drm_file *file_priv)
{
	drm_wait_vblank32_t *req32 = data;
	union drm_wait_vblank request;
	int err;

	request.request.type = req32->request.type;
	request.request.sequence = req32->request.sequence;
	request.request.signal = req32->request.signal;

	err = drm_wait_vblank(dev, (void *)&request, file_priv);
	if (err)
		return err;

	req32->reply.type = request.reply.type;
	req32->reply.sequence = request.reply.sequence;
	req32->reply.tval_sec = request.reply.tval_sec;
	req32->reply.tval_usec = request.reply.tval_usec;

	return 0;
}

struct drm_ioctl_desc drm_compat_ioctls[256] = {
	DRM_IOCTL_DEF(DRM_IOCTL_VERSION32, compat_drm_version, DRM_UNLOCKED),
	DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE32, compat_drm_getunique, 0),
	DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP32, compat_drm_getmap, DRM_UNLOCKED),
	DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT32, compat_drm_getclient, DRM_UNLOCKED),
	DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS32, compat_drm_getstats, DRM_UNLOCKED),
	DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE32, compat_drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP32, compat_drm_addmap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS32, compat_drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS32, compat_drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS32, compat_drm_infobufs, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS32, compat_drm_mapbufs, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS32, compat_drm_freebufs, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP32, compat_drm_rmmap, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX32, compat_drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX32, compat_drm_getsareactx, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX32, compat_drm_resctx, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_IOCTL_DMA32, compat_drm_dma, DRM_AUTH),
#if __OS_HAS_AGP
	DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE32, compat_drm_agp_enable, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO32, compat_drm_agp_info, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC32, compat_drm_agp_alloc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE32, compat_drm_agp_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND32, compat_drm_agp_bind, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND32, compat_drm_agp_unbind, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
#endif
	DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC32, compat_drm_sg_alloc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE32, compat_drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
#if defined(CONFIG_X86) || defined(CONFIG_IA64)
	DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW32, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
#endif
	DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK32, compat_drm_wait_vblank, DRM_UNLOCKED),
};

#endif