4 * 32-bit ioctl compatibility routines for the DRM.
6 * \author Paul Mackerras <paulus@samba.org>
8 * Copyright (C) Paul Mackerras 2005.
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:
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
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
30 #include <linux/compat.h>
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)
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)
49 #define DRM_IOCTL_RM_MAP32 DRM_IOW( 0x1b, drm_map32_t)
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)
54 #define DRM_IOCTL_RES_CTX32 DRM_IOWR(0x26, drm_ctx_res32_t)
55 #define DRM_IOCTL_DMA32 DRM_IOWR(0x29, drm_dma32_t)
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)
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)
67 #define DRM_IOCTL_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_t)
69 typedef struct drm_version_32 {
70 int version_major; /**< Major version */
71 int version_minor; /**< Minor version */
72 int version_patchlevel; /**< Patch level */
73 u32 name_len; /**< Length of name buffer */
74 u32 name; /**< Name of driver */
75 u32 date_len; /**< Length of date buffer */
76 u32 date; /**< User-space buffer to hold date */
77 u32 desc_len; /**< Length of desc buffer */
78 u32 desc; /**< User-space buffer to hold desc */
81 static int compat_drm_version(struct file *file, unsigned int cmd,
85 struct drm_version __user *version;
88 if (copy_from_user(&v32, (void __user *)arg, sizeof(v32)))
91 version = compat_alloc_user_space(sizeof(*version));
92 if (!access_ok(VERIFY_WRITE, version, sizeof(*version)))
94 if (__put_user(v32.name_len, &version->name_len)
95 || __put_user((void __user *)(unsigned long)v32.name,
97 || __put_user(v32.date_len, &version->date_len)
98 || __put_user((void __user *)(unsigned long)v32.date,
100 || __put_user(v32.desc_len, &version->desc_len)
101 || __put_user((void __user *)(unsigned long)v32.desc,
105 err = drm_ioctl(file->f_path.dentry->d_inode, file,
106 DRM_IOCTL_VERSION, (unsigned long)version);
110 if (__get_user(v32.version_major, &version->version_major)
111 || __get_user(v32.version_minor, &version->version_minor)
112 || __get_user(v32.version_patchlevel, &version->version_patchlevel)
113 || __get_user(v32.name_len, &version->name_len)
114 || __get_user(v32.date_len, &version->date_len)
115 || __get_user(v32.desc_len, &version->desc_len))
118 if (copy_to_user((void __user *)arg, &v32, sizeof(v32)))
123 typedef struct drm_unique32 {
124 u32 unique_len; /**< Length of unique */
125 u32 unique; /**< Unique name for driver instantiation */
128 static int compat_drm_getunique(struct file *file, unsigned int cmd,
132 struct drm_unique __user *u;
135 if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
138 u = compat_alloc_user_space(sizeof(*u));
139 if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
141 if (__put_user(uq32.unique_len, &u->unique_len)
142 || __put_user((void __user *)(unsigned long)uq32.unique,
146 err = drm_ioctl(file->f_path.dentry->d_inode, file,
147 DRM_IOCTL_GET_UNIQUE, (unsigned long)u);
151 if (__get_user(uq32.unique_len, &u->unique_len))
153 if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32)))
158 static int compat_drm_setunique(struct file *file, unsigned int cmd,
162 struct drm_unique __user *u;
164 if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
167 u = compat_alloc_user_space(sizeof(*u));
168 if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
170 if (__put_user(uq32.unique_len, &u->unique_len)
171 || __put_user((void __user *)(unsigned long)uq32.unique,
175 return drm_ioctl(file->f_path.dentry->d_inode, file,
176 DRM_IOCTL_SET_UNIQUE, (unsigned long)u);
179 typedef struct drm_map32 {
180 u32 offset; /**< Requested physical address (0 for SAREA)*/
181 u32 size; /**< Requested physical size (bytes) */
182 enum drm_map_type type; /**< Type of memory to map */
183 enum drm_map_flags flags; /**< Flags */
184 u32 handle; /**< User-space: "Handle" to pass to mmap() */
185 int mtrr; /**< MTRR slot used */
188 static int compat_drm_getmap(struct file *file, unsigned int cmd,
191 drm_map32_t __user *argp = (void __user *)arg;
193 struct drm_map __user *map;
197 if (get_user(idx, &argp->offset))
200 map = compat_alloc_user_space(sizeof(*map));
201 if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
203 if (__put_user(idx, &map->offset))
206 err = drm_ioctl(file->f_path.dentry->d_inode, file,
207 DRM_IOCTL_GET_MAP, (unsigned long)map);
211 if (__get_user(m32.offset, &map->offset)
212 || __get_user(m32.size, &map->size)
213 || __get_user(m32.type, &map->type)
214 || __get_user(m32.flags, &map->flags)
215 || __get_user(handle, &map->handle)
216 || __get_user(m32.mtrr, &map->mtrr))
219 m32.handle = (unsigned long)handle;
220 if (copy_to_user(argp, &m32, sizeof(m32)))
226 static int compat_drm_addmap(struct file *file, unsigned int cmd,
229 drm_map32_t __user *argp = (void __user *)arg;
231 struct drm_map __user *map;
235 if (copy_from_user(&m32, argp, sizeof(m32)))
238 map = compat_alloc_user_space(sizeof(*map));
239 if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
241 if (__put_user(m32.offset, &map->offset)
242 || __put_user(m32.size, &map->size)
243 || __put_user(m32.type, &map->type)
244 || __put_user(m32.flags, &map->flags))
247 err = drm_ioctl(file->f_path.dentry->d_inode, file,
248 DRM_IOCTL_ADD_MAP, (unsigned long)map);
252 if (__get_user(m32.offset, &map->offset)
253 || __get_user(m32.mtrr, &map->mtrr)
254 || __get_user(handle, &map->handle))
257 m32.handle = (unsigned long)handle;
258 if (m32.handle != (unsigned long)handle && printk_ratelimit())
259 printk(KERN_ERR "compat_drm_addmap truncated handle"
260 " %p for type %d offset %x\n",
261 handle, m32.type, m32.offset);
263 if (copy_to_user(argp, &m32, sizeof(m32)))
269 static int compat_drm_rmmap(struct file *file, unsigned int cmd,
272 drm_map32_t __user *argp = (void __user *)arg;
273 struct drm_map __user *map;
276 if (get_user(handle, &argp->handle))
279 map = compat_alloc_user_space(sizeof(*map));
280 if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
282 if (__put_user((void *)(unsigned long)handle, &map->handle))
285 return drm_ioctl(file->f_path.dentry->d_inode, file,
286 DRM_IOCTL_RM_MAP, (unsigned long)map);
289 typedef struct drm_client32 {
290 int idx; /**< Which client desired? */
291 int auth; /**< Is client authenticated? */
292 u32 pid; /**< Process ID */
293 u32 uid; /**< User ID */
294 u32 magic; /**< Magic */
295 u32 iocs; /**< Ioctl count */
298 static int compat_drm_getclient(struct file *file, unsigned int cmd,
302 drm_client32_t __user *argp = (void __user *)arg;
303 struct drm_client __user *client;
306 if (get_user(idx, &argp->idx))
309 client = compat_alloc_user_space(sizeof(*client));
310 if (!access_ok(VERIFY_WRITE, client, sizeof(*client)))
312 if (__put_user(idx, &client->idx))
315 err = drm_ioctl(file->f_path.dentry->d_inode, file,
316 DRM_IOCTL_GET_CLIENT, (unsigned long)client);
320 if (__get_user(c32.auth, &client->auth)
321 || __get_user(c32.pid, &client->pid)
322 || __get_user(c32.uid, &client->uid)
323 || __get_user(c32.magic, &client->magic)
324 || __get_user(c32.iocs, &client->iocs))
327 if (copy_to_user(argp, &c32, sizeof(c32)))
332 typedef struct drm_stats32 {
336 enum drm_stat_type type;
340 static int compat_drm_getstats(struct file *file, unsigned int cmd,
344 drm_stats32_t __user *argp = (void __user *)arg;
345 struct drm_stats __user *stats;
348 stats = compat_alloc_user_space(sizeof(*stats));
349 if (!access_ok(VERIFY_WRITE, stats, sizeof(*stats)))
352 err = drm_ioctl(file->f_path.dentry->d_inode, file,
353 DRM_IOCTL_GET_STATS, (unsigned long)stats);
357 if (__get_user(s32.count, &stats->count))
359 for (i = 0; i < 15; ++i)
360 if (__get_user(s32.data[i].value, &stats->data[i].value)
361 || __get_user(s32.data[i].type, &stats->data[i].type))
364 if (copy_to_user(argp, &s32, sizeof(s32)))
369 typedef struct drm_buf_desc32 {
370 int count; /**< Number of buffers of this size */
371 int size; /**< Size in bytes */
372 int low_mark; /**< Low water mark */
373 int high_mark; /**< High water mark */
375 u32 agp_start; /**< Start address in the AGP aperture */
378 static int compat_drm_addbufs(struct file *file, unsigned int cmd,
381 drm_buf_desc32_t __user *argp = (void __user *)arg;
382 struct drm_buf_desc __user *buf;
384 unsigned long agp_start;
386 buf = compat_alloc_user_space(sizeof(*buf));
387 if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf))
388 || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)))
391 if (__copy_in_user(buf, argp, offsetof(drm_buf_desc32_t, agp_start))
392 || __get_user(agp_start, &argp->agp_start)
393 || __put_user(agp_start, &buf->agp_start))
396 err = drm_ioctl(file->f_path.dentry->d_inode, file,
397 DRM_IOCTL_ADD_BUFS, (unsigned long)buf);
401 if (__copy_in_user(argp, buf, offsetof(drm_buf_desc32_t, agp_start))
402 || __get_user(agp_start, &buf->agp_start)
403 || __put_user(agp_start, &argp->agp_start))
409 static int compat_drm_markbufs(struct file *file, unsigned int cmd,
412 drm_buf_desc32_t b32;
413 drm_buf_desc32_t __user *argp = (void __user *)arg;
414 struct drm_buf_desc __user *buf;
416 if (copy_from_user(&b32, argp, sizeof(b32)))
419 buf = compat_alloc_user_space(sizeof(*buf));
420 if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf)))
423 if (__put_user(b32.size, &buf->size)
424 || __put_user(b32.low_mark, &buf->low_mark)
425 || __put_user(b32.high_mark, &buf->high_mark))
428 return drm_ioctl(file->f_path.dentry->d_inode, file,
429 DRM_IOCTL_MARK_BUFS, (unsigned long)buf);
432 typedef struct drm_buf_info32 {
433 int count; /**< Entries in list */
437 static int compat_drm_infobufs(struct file *file, unsigned int cmd,
440 drm_buf_info32_t req32;
441 drm_buf_info32_t __user *argp = (void __user *)arg;
442 drm_buf_desc32_t __user *to;
443 struct drm_buf_info __user *request;
444 struct drm_buf_desc __user *list;
449 if (copy_from_user(&req32, argp, sizeof(req32)))
453 to = (drm_buf_desc32_t __user *) (unsigned long)req32.list;
457 && !access_ok(VERIFY_WRITE, to, count * sizeof(drm_buf_desc32_t)))
460 nbytes = sizeof(*request) + count * sizeof(struct drm_buf_desc);
461 request = compat_alloc_user_space(nbytes);
462 if (!access_ok(VERIFY_WRITE, request, nbytes))
464 list = (struct drm_buf_desc *) (request + 1);
466 if (__put_user(count, &request->count)
467 || __put_user(list, &request->list))
470 err = drm_ioctl(file->f_path.dentry->d_inode, file,
471 DRM_IOCTL_INFO_BUFS, (unsigned long)request);
475 if (__get_user(actual, &request->count))
478 for (i = 0; i < actual; ++i)
479 if (__copy_in_user(&to[i], &list[i],
480 offsetof(struct drm_buf_desc, flags)))
483 if (__put_user(actual, &argp->count))
489 typedef struct drm_buf_pub32 {
490 int idx; /**< Index into the master buffer list */
491 int total; /**< Buffer size */
492 int used; /**< Amount of buffer in use (for DMA) */
493 u32 address; /**< Address of buffer */
496 typedef struct drm_buf_map32 {
497 int count; /**< Length of the buffer list */
498 u32 virtual; /**< Mmap'd area in user-virtual */
499 u32 list; /**< Buffer information */
502 static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
505 drm_buf_map32_t __user *argp = (void __user *)arg;
506 drm_buf_map32_t req32;
507 drm_buf_pub32_t __user *list32;
508 struct drm_buf_map __user *request;
509 struct drm_buf_pub __user *list;
515 if (copy_from_user(&req32, argp, sizeof(req32)))
518 list32 = (void __user *)(unsigned long)req32.list;
522 nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub);
523 request = compat_alloc_user_space(nbytes);
524 if (!access_ok(VERIFY_WRITE, request, nbytes))
526 list = (struct drm_buf_pub *) (request + 1);
528 if (__put_user(count, &request->count)
529 || __put_user(list, &request->list))
532 err = drm_ioctl(file->f_path.dentry->d_inode, file,
533 DRM_IOCTL_MAP_BUFS, (unsigned long)request);
537 if (__get_user(actual, &request->count))
540 for (i = 0; i < actual; ++i)
541 if (__copy_in_user(&list32[i], &list[i],
542 offsetof(struct drm_buf_pub, address))
543 || __get_user(addr, &list[i].address)
544 || __put_user((unsigned long)addr,
548 if (__put_user(actual, &argp->count)
549 || __get_user(addr, &request->virtual)
550 || __put_user((unsigned long)addr, &argp->virtual))
556 typedef struct drm_buf_free32 {
561 static int compat_drm_freebufs(struct file *file, unsigned int cmd,
564 drm_buf_free32_t req32;
565 struct drm_buf_free __user *request;
566 drm_buf_free32_t __user *argp = (void __user *)arg;
568 if (copy_from_user(&req32, argp, sizeof(req32)))
571 request = compat_alloc_user_space(sizeof(*request));
572 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
574 if (__put_user(req32.count, &request->count)
575 || __put_user((int __user *)(unsigned long)req32.list,
579 return drm_ioctl(file->f_path.dentry->d_inode, file,
580 DRM_IOCTL_FREE_BUFS, (unsigned long)request);
583 typedef struct drm_ctx_priv_map32 {
584 unsigned int ctx_id; /**< Context requesting private mapping */
585 u32 handle; /**< Handle of map */
586 } drm_ctx_priv_map32_t;
588 static int compat_drm_setsareactx(struct file *file, unsigned int cmd,
591 drm_ctx_priv_map32_t req32;
592 struct drm_ctx_priv_map __user *request;
593 drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
595 if (copy_from_user(&req32, argp, sizeof(req32)))
598 request = compat_alloc_user_space(sizeof(*request));
599 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
601 if (__put_user(req32.ctx_id, &request->ctx_id)
602 || __put_user((void *)(unsigned long)req32.handle,
606 return drm_ioctl(file->f_path.dentry->d_inode, file,
607 DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request);
610 static int compat_drm_getsareactx(struct file *file, unsigned int cmd,
613 struct drm_ctx_priv_map __user *request;
614 drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
619 if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp))
620 || __get_user(ctx_id, &argp->ctx_id))
623 request = compat_alloc_user_space(sizeof(*request));
624 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
626 if (__put_user(ctx_id, &request->ctx_id))
629 err = drm_ioctl(file->f_path.dentry->d_inode, file,
630 DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request);
634 if (__get_user(handle, &request->handle)
635 || __put_user((unsigned long)handle, &argp->handle))
641 typedef struct drm_ctx_res32 {
646 static int compat_drm_resctx(struct file *file, unsigned int cmd,
649 drm_ctx_res32_t __user *argp = (void __user *)arg;
650 drm_ctx_res32_t res32;
651 struct drm_ctx_res __user *res;
654 if (copy_from_user(&res32, argp, sizeof(res32)))
657 res = compat_alloc_user_space(sizeof(*res));
658 if (!access_ok(VERIFY_WRITE, res, sizeof(*res)))
660 if (__put_user(res32.count, &res->count)
661 || __put_user((struct drm_ctx __user *) (unsigned long)res32.contexts,
665 err = drm_ioctl(file->f_path.dentry->d_inode, file,
666 DRM_IOCTL_RES_CTX, (unsigned long)res);
670 if (__get_user(res32.count, &res->count)
671 || __put_user(res32.count, &argp->count))
677 typedef struct drm_dma32 {
678 int context; /**< Context handle */
679 int send_count; /**< Number of buffers to send */
680 u32 send_indices; /**< List of handles to buffers */
681 u32 send_sizes; /**< Lengths of data to send */
682 enum drm_dma_flags flags; /**< Flags */
683 int request_count; /**< Number of buffers requested */
684 int request_size; /**< Desired size for buffers */
685 u32 request_indices; /**< Buffer information */
687 int granted_count; /**< Number of buffers granted */
690 static int compat_drm_dma(struct file *file, unsigned int cmd,
694 drm_dma32_t __user *argp = (void __user *)arg;
695 struct drm_dma __user *d;
698 if (copy_from_user(&d32, argp, sizeof(d32)))
701 d = compat_alloc_user_space(sizeof(*d));
702 if (!access_ok(VERIFY_WRITE, d, sizeof(*d)))
705 if (__put_user(d32.context, &d->context)
706 || __put_user(d32.send_count, &d->send_count)
707 || __put_user((int __user *)(unsigned long)d32.send_indices,
709 || __put_user((int __user *)(unsigned long)d32.send_sizes,
711 || __put_user(d32.flags, &d->flags)
712 || __put_user(d32.request_count, &d->request_count)
713 || __put_user((int __user *)(unsigned long)d32.request_indices,
715 || __put_user((int __user *)(unsigned long)d32.request_sizes,
719 err = drm_ioctl(file->f_path.dentry->d_inode, file,
720 DRM_IOCTL_DMA, (unsigned long)d);
724 if (__get_user(d32.request_size, &d->request_size)
725 || __get_user(d32.granted_count, &d->granted_count)
726 || __put_user(d32.request_size, &argp->request_size)
727 || __put_user(d32.granted_count, &argp->granted_count))
734 typedef struct drm_agp_mode32 {
735 u32 mode; /**< AGP mode */
738 static int compat_drm_agp_enable(struct file *file, unsigned int cmd,
741 drm_agp_mode32_t __user *argp = (void __user *)arg;
742 drm_agp_mode32_t m32;
743 struct drm_agp_mode __user *mode;
745 if (get_user(m32.mode, &argp->mode))
748 mode = compat_alloc_user_space(sizeof(*mode));
749 if (put_user(m32.mode, &mode->mode))
752 return drm_ioctl(file->f_path.dentry->d_inode, file,
753 DRM_IOCTL_AGP_ENABLE, (unsigned long)mode);
756 typedef struct drm_agp_info32 {
757 int agp_version_major;
758 int agp_version_minor;
760 u32 aperture_base; /* physical address */
761 u32 aperture_size; /* bytes */
762 u32 memory_allowed; /* bytes */
765 /* PCI information */
766 unsigned short id_vendor;
767 unsigned short id_device;
770 static int compat_drm_agp_info(struct file *file, unsigned int cmd,
773 drm_agp_info32_t __user *argp = (void __user *)arg;
774 drm_agp_info32_t i32;
775 struct drm_agp_info __user *info;
778 info = compat_alloc_user_space(sizeof(*info));
779 if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
782 err = drm_ioctl(file->f_path.dentry->d_inode, file,
783 DRM_IOCTL_AGP_INFO, (unsigned long)info);
787 if (__get_user(i32.agp_version_major, &info->agp_version_major)
788 || __get_user(i32.agp_version_minor, &info->agp_version_minor)
789 || __get_user(i32.mode, &info->mode)
790 || __get_user(i32.aperture_base, &info->aperture_base)
791 || __get_user(i32.aperture_size, &info->aperture_size)
792 || __get_user(i32.memory_allowed, &info->memory_allowed)
793 || __get_user(i32.memory_used, &info->memory_used)
794 || __get_user(i32.id_vendor, &info->id_vendor)
795 || __get_user(i32.id_device, &info->id_device))
798 if (copy_to_user(argp, &i32, sizeof(i32)))
804 typedef struct drm_agp_buffer32 {
805 u32 size; /**< In bytes -- will round to page boundary */
806 u32 handle; /**< Used for binding / unbinding */
807 u32 type; /**< Type of memory to allocate */
808 u32 physical; /**< Physical used by i810 */
809 } drm_agp_buffer32_t;
811 static int compat_drm_agp_alloc(struct file *file, unsigned int cmd,
814 drm_agp_buffer32_t __user *argp = (void __user *)arg;
815 drm_agp_buffer32_t req32;
816 struct drm_agp_buffer __user *request;
819 if (copy_from_user(&req32, argp, sizeof(req32)))
822 request = compat_alloc_user_space(sizeof(*request));
823 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
824 || __put_user(req32.size, &request->size)
825 || __put_user(req32.type, &request->type))
828 err = drm_ioctl(file->f_path.dentry->d_inode, file,
829 DRM_IOCTL_AGP_ALLOC, (unsigned long)request);
833 if (__get_user(req32.handle, &request->handle)
834 || __get_user(req32.physical, &request->physical)
835 || copy_to_user(argp, &req32, sizeof(req32))) {
836 drm_ioctl(file->f_path.dentry->d_inode, file,
837 DRM_IOCTL_AGP_FREE, (unsigned long)request);
844 static int compat_drm_agp_free(struct file *file, unsigned int cmd,
847 drm_agp_buffer32_t __user *argp = (void __user *)arg;
848 struct drm_agp_buffer __user *request;
851 request = compat_alloc_user_space(sizeof(*request));
852 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
853 || get_user(handle, &argp->handle)
854 || __put_user(handle, &request->handle))
857 return drm_ioctl(file->f_path.dentry->d_inode, file,
858 DRM_IOCTL_AGP_FREE, (unsigned long)request);
861 typedef struct drm_agp_binding32 {
862 u32 handle; /**< From drm_agp_buffer */
863 u32 offset; /**< In bytes -- will round to page boundary */
864 } drm_agp_binding32_t;
866 static int compat_drm_agp_bind(struct file *file, unsigned int cmd,
869 drm_agp_binding32_t __user *argp = (void __user *)arg;
870 drm_agp_binding32_t req32;
871 struct drm_agp_binding __user *request;
873 if (copy_from_user(&req32, argp, sizeof(req32)))
876 request = compat_alloc_user_space(sizeof(*request));
877 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
878 || __put_user(req32.handle, &request->handle)
879 || __put_user(req32.offset, &request->offset))
882 return drm_ioctl(file->f_path.dentry->d_inode, file,
883 DRM_IOCTL_AGP_BIND, (unsigned long)request);
886 static int compat_drm_agp_unbind(struct file *file, unsigned int cmd,
889 drm_agp_binding32_t __user *argp = (void __user *)arg;
890 struct drm_agp_binding __user *request;
893 request = compat_alloc_user_space(sizeof(*request));
894 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
895 || get_user(handle, &argp->handle)
896 || __put_user(handle, &request->handle))
899 return drm_ioctl(file->f_path.dentry->d_inode, file,
900 DRM_IOCTL_AGP_UNBIND, (unsigned long)request);
902 #endif /* __OS_HAS_AGP */
904 typedef struct drm_scatter_gather32 {
905 u32 size; /**< In bytes -- will round to page boundary */
906 u32 handle; /**< Used for mapping / unmapping */
907 } drm_scatter_gather32_t;
909 static int compat_drm_sg_alloc(struct file *file, unsigned int cmd,
912 drm_scatter_gather32_t __user *argp = (void __user *)arg;
913 struct drm_scatter_gather __user *request;
917 request = compat_alloc_user_space(sizeof(*request));
918 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
919 || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
920 || __get_user(x, &argp->size)
921 || __put_user(x, &request->size))
924 err = drm_ioctl(file->f_path.dentry->d_inode, file,
925 DRM_IOCTL_SG_ALLOC, (unsigned long)request);
929 /* XXX not sure about the handle conversion here... */
930 if (__get_user(x, &request->handle)
931 || __put_user(x >> PAGE_SHIFT, &argp->handle))
937 static int compat_drm_sg_free(struct file *file, unsigned int cmd,
940 drm_scatter_gather32_t __user *argp = (void __user *)arg;
941 struct drm_scatter_gather __user *request;
944 request = compat_alloc_user_space(sizeof(*request));
945 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
946 || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
947 || __get_user(x, &argp->handle)
948 || __put_user(x << PAGE_SHIFT, &request->handle))
951 return drm_ioctl(file->f_path.dentry->d_inode, file,
952 DRM_IOCTL_SG_FREE, (unsigned long)request);
955 struct drm_wait_vblank_request32 {
956 enum drm_vblank_seq_type type;
957 unsigned int sequence;
961 struct drm_wait_vblank_reply32 {
962 enum drm_vblank_seq_type type;
963 unsigned int sequence;
968 typedef union drm_wait_vblank32 {
969 struct drm_wait_vblank_request32 request;
970 struct drm_wait_vblank_reply32 reply;
971 } drm_wait_vblank32_t;
973 static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
976 drm_wait_vblank32_t __user *argp = (void __user *)arg;
977 drm_wait_vblank32_t req32;
978 union drm_wait_vblank __user *request;
981 if (copy_from_user(&req32, argp, sizeof(req32)))
984 request = compat_alloc_user_space(sizeof(*request));
985 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
986 || __put_user(req32.request.type, &request->request.type)
987 || __put_user(req32.request.sequence, &request->request.sequence)
988 || __put_user(req32.request.signal, &request->request.signal))
991 err = drm_ioctl(file->f_path.dentry->d_inode, file,
992 DRM_IOCTL_WAIT_VBLANK, (unsigned long)request);
996 if (__get_user(req32.reply.type, &request->reply.type)
997 || __get_user(req32.reply.sequence, &request->reply.sequence)
998 || __get_user(req32.reply.tval_sec, &request->reply.tval_sec)
999 || __get_user(req32.reply.tval_usec, &request->reply.tval_usec))
1002 if (copy_to_user(argp, &req32, sizeof(req32)))
1008 drm_ioctl_compat_t *drm_compat_ioctls[] = {
1009 [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
1010 [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
1011 [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
1012 [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)] = compat_drm_getclient,
1013 [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)] = compat_drm_getstats,
1014 [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE32)] = compat_drm_setunique,
1015 [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)] = compat_drm_addmap,
1016 [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS32)] = compat_drm_addbufs,
1017 [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)] = compat_drm_markbufs,
1018 [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS32)] = compat_drm_infobufs,
1019 [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)] = compat_drm_mapbufs,
1020 [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)] = compat_drm_freebufs,
1021 [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)] = compat_drm_rmmap,
1022 [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX32)] = compat_drm_setsareactx,
1023 [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)] = compat_drm_getsareactx,
1024 [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)] = compat_drm_resctx,
1025 [DRM_IOCTL_NR(DRM_IOCTL_DMA32)] = compat_drm_dma,
1027 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)] = compat_drm_agp_enable,
1028 [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)] = compat_drm_agp_info,
1029 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)] = compat_drm_agp_alloc,
1030 [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)] = compat_drm_agp_free,
1031 [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)] = compat_drm_agp_bind,
1032 [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)] = compat_drm_agp_unbind,
1034 [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)] = compat_drm_sg_alloc,
1035 [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)] = compat_drm_sg_free,
1036 [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank,
1040 * Called whenever a 32-bit process running under a 64-bit kernel
1041 * performs an ioctl on /dev/drm.
1043 * \param file_priv DRM file private.
1044 * \param cmd command.
1045 * \param arg user argument.
1046 * \return zero on success or negative number on failure.
1048 long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
1050 unsigned int nr = DRM_IOCTL_NR(cmd);
1051 drm_ioctl_compat_t *fn;
1054 if (nr >= ARRAY_SIZE(drm_compat_ioctls))
1057 fn = drm_compat_ioctls[nr];
1059 lock_kernel(); /* XXX for now */
1061 ret = (*fn) (filp, cmd, arg);
1063 ret = drm_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg);
1069 EXPORT_SYMBOL(drm_compat_ioctl);