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_UPDATE_DRAW32 DRM_IOW( 0x3f, drm_update_draw32_t)
69 #define DRM_IOCTL_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_t)
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 */
83 static int compat_drm_version(struct file *file, unsigned int cmd,
87 struct drm_version __user *version;
90 if (copy_from_user(&v32, (void __user *)arg, sizeof(v32)))
93 version = compat_alloc_user_space(sizeof(*version));
94 if (!access_ok(VERIFY_WRITE, version, sizeof(*version)))
96 if (__put_user(v32.name_len, &version->name_len)
97 || __put_user((void __user *)(unsigned long)v32.name,
99 || __put_user(v32.date_len, &version->date_len)
100 || __put_user((void __user *)(unsigned long)v32.date,
102 || __put_user(v32.desc_len, &version->desc_len)
103 || __put_user((void __user *)(unsigned long)v32.desc,
107 err = drm_ioctl(file,
108 DRM_IOCTL_VERSION, (unsigned long)version);
112 if (__get_user(v32.version_major, &version->version_major)
113 || __get_user(v32.version_minor, &version->version_minor)
114 || __get_user(v32.version_patchlevel, &version->version_patchlevel)
115 || __get_user(v32.name_len, &version->name_len)
116 || __get_user(v32.date_len, &version->date_len)
117 || __get_user(v32.desc_len, &version->desc_len))
120 if (copy_to_user((void __user *)arg, &v32, sizeof(v32)))
125 typedef struct drm_unique32 {
126 u32 unique_len; /**< Length of unique */
127 u32 unique; /**< Unique name for driver instantiation */
130 static int compat_drm_getunique(struct file *file, unsigned int cmd,
134 struct drm_unique __user *u;
137 if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
140 u = compat_alloc_user_space(sizeof(*u));
141 if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
143 if (__put_user(uq32.unique_len, &u->unique_len)
144 || __put_user((void __user *)(unsigned long)uq32.unique,
148 err = drm_ioctl(file, DRM_IOCTL_GET_UNIQUE, (unsigned long)u);
152 if (__get_user(uq32.unique_len, &u->unique_len))
154 if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32)))
159 static int compat_drm_setunique(struct file *file, unsigned int cmd,
163 struct drm_unique __user *u;
165 if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
168 u = compat_alloc_user_space(sizeof(*u));
169 if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
171 if (__put_user(uq32.unique_len, &u->unique_len)
172 || __put_user((void __user *)(unsigned long)uq32.unique,
176 return drm_ioctl(file, 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, DRM_IOCTL_GET_MAP, (unsigned long)map);
210 if (__get_user(m32.offset, &map->offset)
211 || __get_user(m32.size, &map->size)
212 || __get_user(m32.type, &map->type)
213 || __get_user(m32.flags, &map->flags)
214 || __get_user(handle, &map->handle)
215 || __get_user(m32.mtrr, &map->mtrr))
218 m32.handle = (unsigned long)handle;
219 if (copy_to_user(argp, &m32, sizeof(m32)))
225 static int compat_drm_addmap(struct file *file, unsigned int cmd,
228 drm_map32_t __user *argp = (void __user *)arg;
230 struct drm_map __user *map;
234 if (copy_from_user(&m32, argp, sizeof(m32)))
237 map = compat_alloc_user_space(sizeof(*map));
238 if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
240 if (__put_user(m32.offset, &map->offset)
241 || __put_user(m32.size, &map->size)
242 || __put_user(m32.type, &map->type)
243 || __put_user(m32.flags, &map->flags))
246 err = drm_ioctl(file, DRM_IOCTL_ADD_MAP, (unsigned long)map);
250 if (__get_user(m32.offset, &map->offset)
251 || __get_user(m32.mtrr, &map->mtrr)
252 || __get_user(handle, &map->handle))
255 m32.handle = (unsigned long)handle;
256 if (m32.handle != (unsigned long)handle && printk_ratelimit())
257 printk(KERN_ERR "compat_drm_addmap truncated handle"
258 " %p for type %d offset %x\n",
259 handle, m32.type, m32.offset);
261 if (copy_to_user(argp, &m32, sizeof(m32)))
267 static int compat_drm_rmmap(struct file *file, unsigned int cmd,
270 drm_map32_t __user *argp = (void __user *)arg;
271 struct drm_map __user *map;
274 if (get_user(handle, &argp->handle))
277 map = compat_alloc_user_space(sizeof(*map));
278 if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
280 if (__put_user((void *)(unsigned long)handle, &map->handle))
283 return drm_ioctl(file, DRM_IOCTL_RM_MAP, (unsigned long)map);
286 typedef struct drm_client32 {
287 int idx; /**< Which client desired? */
288 int auth; /**< Is client authenticated? */
289 u32 pid; /**< Process ID */
290 u32 uid; /**< User ID */
291 u32 magic; /**< Magic */
292 u32 iocs; /**< Ioctl count */
295 static int compat_drm_getclient(struct file *file, unsigned int cmd,
299 drm_client32_t __user *argp = (void __user *)arg;
300 struct drm_client __user *client;
303 if (get_user(idx, &argp->idx))
306 client = compat_alloc_user_space(sizeof(*client));
307 if (!access_ok(VERIFY_WRITE, client, sizeof(*client)))
309 if (__put_user(idx, &client->idx))
312 err = drm_ioctl(file, DRM_IOCTL_GET_CLIENT, (unsigned long)client);
316 if (__get_user(c32.auth, &client->auth)
317 || __get_user(c32.pid, &client->pid)
318 || __get_user(c32.uid, &client->uid)
319 || __get_user(c32.magic, &client->magic)
320 || __get_user(c32.iocs, &client->iocs))
323 if (copy_to_user(argp, &c32, sizeof(c32)))
328 typedef struct drm_stats32 {
332 enum drm_stat_type type;
336 static int compat_drm_getstats(struct file *file, unsigned int cmd,
340 drm_stats32_t __user *argp = (void __user *)arg;
341 struct drm_stats __user *stats;
344 stats = compat_alloc_user_space(sizeof(*stats));
345 if (!access_ok(VERIFY_WRITE, stats, sizeof(*stats)))
348 err = drm_ioctl(file, DRM_IOCTL_GET_STATS, (unsigned long)stats);
352 if (__get_user(s32.count, &stats->count))
354 for (i = 0; i < 15; ++i)
355 if (__get_user(s32.data[i].value, &stats->data[i].value)
356 || __get_user(s32.data[i].type, &stats->data[i].type))
359 if (copy_to_user(argp, &s32, sizeof(s32)))
364 typedef struct drm_buf_desc32 {
365 int count; /**< Number of buffers of this size */
366 int size; /**< Size in bytes */
367 int low_mark; /**< Low water mark */
368 int high_mark; /**< High water mark */
370 u32 agp_start; /**< Start address in the AGP aperture */
373 static int compat_drm_addbufs(struct file *file, unsigned int cmd,
376 drm_buf_desc32_t __user *argp = (void __user *)arg;
377 struct drm_buf_desc __user *buf;
379 unsigned long agp_start;
381 buf = compat_alloc_user_space(sizeof(*buf));
382 if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf))
383 || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)))
386 if (__copy_in_user(buf, argp, offsetof(drm_buf_desc32_t, agp_start))
387 || __get_user(agp_start, &argp->agp_start)
388 || __put_user(agp_start, &buf->agp_start))
391 err = drm_ioctl(file, DRM_IOCTL_ADD_BUFS, (unsigned long)buf);
395 if (__copy_in_user(argp, buf, offsetof(drm_buf_desc32_t, agp_start))
396 || __get_user(agp_start, &buf->agp_start)
397 || __put_user(agp_start, &argp->agp_start))
403 static int compat_drm_markbufs(struct file *file, unsigned int cmd,
406 drm_buf_desc32_t b32;
407 drm_buf_desc32_t __user *argp = (void __user *)arg;
408 struct drm_buf_desc __user *buf;
410 if (copy_from_user(&b32, argp, sizeof(b32)))
413 buf = compat_alloc_user_space(sizeof(*buf));
414 if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf)))
417 if (__put_user(b32.size, &buf->size)
418 || __put_user(b32.low_mark, &buf->low_mark)
419 || __put_user(b32.high_mark, &buf->high_mark))
422 return drm_ioctl(file, DRM_IOCTL_MARK_BUFS, (unsigned long)buf);
425 typedef struct drm_buf_info32 {
426 int count; /**< Entries in list */
430 static int compat_drm_infobufs(struct file *file, unsigned int cmd,
433 drm_buf_info32_t req32;
434 drm_buf_info32_t __user *argp = (void __user *)arg;
435 drm_buf_desc32_t __user *to;
436 struct drm_buf_info __user *request;
437 struct drm_buf_desc __user *list;
442 if (copy_from_user(&req32, argp, sizeof(req32)))
446 to = (drm_buf_desc32_t __user *) (unsigned long)req32.list;
450 && !access_ok(VERIFY_WRITE, to, count * sizeof(drm_buf_desc32_t)))
453 nbytes = sizeof(*request) + count * sizeof(struct drm_buf_desc);
454 request = compat_alloc_user_space(nbytes);
455 if (!access_ok(VERIFY_WRITE, request, nbytes))
457 list = (struct drm_buf_desc *) (request + 1);
459 if (__put_user(count, &request->count)
460 || __put_user(list, &request->list))
463 err = drm_ioctl(file, DRM_IOCTL_INFO_BUFS, (unsigned long)request);
467 if (__get_user(actual, &request->count))
470 for (i = 0; i < actual; ++i)
471 if (__copy_in_user(&to[i], &list[i],
472 offsetof(struct drm_buf_desc, flags)))
475 if (__put_user(actual, &argp->count))
481 typedef struct drm_buf_pub32 {
482 int idx; /**< Index into the master buffer list */
483 int total; /**< Buffer size */
484 int used; /**< Amount of buffer in use (for DMA) */
485 u32 address; /**< Address of buffer */
488 typedef struct drm_buf_map32 {
489 int count; /**< Length of the buffer list */
490 u32 virtual; /**< Mmap'd area in user-virtual */
491 u32 list; /**< Buffer information */
494 static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
497 drm_buf_map32_t __user *argp = (void __user *)arg;
498 drm_buf_map32_t req32;
499 drm_buf_pub32_t __user *list32;
500 struct drm_buf_map __user *request;
501 struct drm_buf_pub __user *list;
507 if (copy_from_user(&req32, argp, sizeof(req32)))
510 list32 = (void __user *)(unsigned long)req32.list;
514 nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub);
515 request = compat_alloc_user_space(nbytes);
516 if (!access_ok(VERIFY_WRITE, request, nbytes))
518 list = (struct drm_buf_pub *) (request + 1);
520 if (__put_user(count, &request->count)
521 || __put_user(list, &request->list))
524 err = drm_ioctl(file, DRM_IOCTL_MAP_BUFS, (unsigned long)request);
528 if (__get_user(actual, &request->count))
531 for (i = 0; i < actual; ++i)
532 if (__copy_in_user(&list32[i], &list[i],
533 offsetof(struct drm_buf_pub, address))
534 || __get_user(addr, &list[i].address)
535 || __put_user((unsigned long)addr,
539 if (__put_user(actual, &argp->count)
540 || __get_user(addr, &request->virtual)
541 || __put_user((unsigned long)addr, &argp->virtual))
547 typedef struct drm_buf_free32 {
552 static int compat_drm_freebufs(struct file *file, unsigned int cmd,
555 drm_buf_free32_t req32;
556 struct drm_buf_free __user *request;
557 drm_buf_free32_t __user *argp = (void __user *)arg;
559 if (copy_from_user(&req32, argp, sizeof(req32)))
562 request = compat_alloc_user_space(sizeof(*request));
563 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
565 if (__put_user(req32.count, &request->count)
566 || __put_user((int __user *)(unsigned long)req32.list,
570 return drm_ioctl(file, DRM_IOCTL_FREE_BUFS, (unsigned long)request);
573 typedef struct drm_ctx_priv_map32 {
574 unsigned int ctx_id; /**< Context requesting private mapping */
575 u32 handle; /**< Handle of map */
576 } drm_ctx_priv_map32_t;
578 static int compat_drm_setsareactx(struct file *file, unsigned int cmd,
581 drm_ctx_priv_map32_t req32;
582 struct drm_ctx_priv_map __user *request;
583 drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
585 if (copy_from_user(&req32, argp, sizeof(req32)))
588 request = compat_alloc_user_space(sizeof(*request));
589 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
591 if (__put_user(req32.ctx_id, &request->ctx_id)
592 || __put_user((void *)(unsigned long)req32.handle,
596 return drm_ioctl(file, DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request);
599 static int compat_drm_getsareactx(struct file *file, unsigned int cmd,
602 struct drm_ctx_priv_map __user *request;
603 drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
608 if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp))
609 || __get_user(ctx_id, &argp->ctx_id))
612 request = compat_alloc_user_space(sizeof(*request));
613 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
615 if (__put_user(ctx_id, &request->ctx_id))
618 err = drm_ioctl(file, DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request);
622 if (__get_user(handle, &request->handle)
623 || __put_user((unsigned long)handle, &argp->handle))
629 typedef struct drm_ctx_res32 {
634 static int compat_drm_resctx(struct file *file, unsigned int cmd,
637 drm_ctx_res32_t __user *argp = (void __user *)arg;
638 drm_ctx_res32_t res32;
639 struct drm_ctx_res __user *res;
642 if (copy_from_user(&res32, argp, sizeof(res32)))
645 res = compat_alloc_user_space(sizeof(*res));
646 if (!access_ok(VERIFY_WRITE, res, sizeof(*res)))
648 if (__put_user(res32.count, &res->count)
649 || __put_user((struct drm_ctx __user *) (unsigned long)res32.contexts,
653 err = drm_ioctl(file, DRM_IOCTL_RES_CTX, (unsigned long)res);
657 if (__get_user(res32.count, &res->count)
658 || __put_user(res32.count, &argp->count))
664 typedef struct drm_dma32 {
665 int context; /**< Context handle */
666 int send_count; /**< Number of buffers to send */
667 u32 send_indices; /**< List of handles to buffers */
668 u32 send_sizes; /**< Lengths of data to send */
669 enum drm_dma_flags flags; /**< Flags */
670 int request_count; /**< Number of buffers requested */
671 int request_size; /**< Desired size for buffers */
672 u32 request_indices; /**< Buffer information */
674 int granted_count; /**< Number of buffers granted */
677 static int compat_drm_dma(struct file *file, unsigned int cmd,
681 drm_dma32_t __user *argp = (void __user *)arg;
682 struct drm_dma __user *d;
685 if (copy_from_user(&d32, argp, sizeof(d32)))
688 d = compat_alloc_user_space(sizeof(*d));
689 if (!access_ok(VERIFY_WRITE, d, sizeof(*d)))
692 if (__put_user(d32.context, &d->context)
693 || __put_user(d32.send_count, &d->send_count)
694 || __put_user((int __user *)(unsigned long)d32.send_indices,
696 || __put_user((int __user *)(unsigned long)d32.send_sizes,
698 || __put_user(d32.flags, &d->flags)
699 || __put_user(d32.request_count, &d->request_count)
700 || __put_user((int __user *)(unsigned long)d32.request_indices,
702 || __put_user((int __user *)(unsigned long)d32.request_sizes,
706 err = drm_ioctl(file, DRM_IOCTL_DMA, (unsigned long)d);
710 if (__get_user(d32.request_size, &d->request_size)
711 || __get_user(d32.granted_count, &d->granted_count)
712 || __put_user(d32.request_size, &argp->request_size)
713 || __put_user(d32.granted_count, &argp->granted_count))
720 typedef struct drm_agp_mode32 {
721 u32 mode; /**< AGP mode */
724 static int compat_drm_agp_enable(struct file *file, unsigned int cmd,
727 drm_agp_mode32_t __user *argp = (void __user *)arg;
728 drm_agp_mode32_t m32;
729 struct drm_agp_mode __user *mode;
731 if (get_user(m32.mode, &argp->mode))
734 mode = compat_alloc_user_space(sizeof(*mode));
735 if (put_user(m32.mode, &mode->mode))
738 return drm_ioctl(file, DRM_IOCTL_AGP_ENABLE, (unsigned long)mode);
741 typedef struct drm_agp_info32 {
742 int agp_version_major;
743 int agp_version_minor;
745 u32 aperture_base; /* physical address */
746 u32 aperture_size; /* bytes */
747 u32 memory_allowed; /* bytes */
750 /* PCI information */
751 unsigned short id_vendor;
752 unsigned short id_device;
755 static int compat_drm_agp_info(struct file *file, unsigned int cmd,
758 drm_agp_info32_t __user *argp = (void __user *)arg;
759 drm_agp_info32_t i32;
760 struct drm_agp_info __user *info;
763 info = compat_alloc_user_space(sizeof(*info));
764 if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
767 err = drm_ioctl(file, DRM_IOCTL_AGP_INFO, (unsigned long)info);
771 if (__get_user(i32.agp_version_major, &info->agp_version_major)
772 || __get_user(i32.agp_version_minor, &info->agp_version_minor)
773 || __get_user(i32.mode, &info->mode)
774 || __get_user(i32.aperture_base, &info->aperture_base)
775 || __get_user(i32.aperture_size, &info->aperture_size)
776 || __get_user(i32.memory_allowed, &info->memory_allowed)
777 || __get_user(i32.memory_used, &info->memory_used)
778 || __get_user(i32.id_vendor, &info->id_vendor)
779 || __get_user(i32.id_device, &info->id_device))
782 if (copy_to_user(argp, &i32, sizeof(i32)))
788 typedef struct drm_agp_buffer32 {
789 u32 size; /**< In bytes -- will round to page boundary */
790 u32 handle; /**< Used for binding / unbinding */
791 u32 type; /**< Type of memory to allocate */
792 u32 physical; /**< Physical used by i810 */
793 } drm_agp_buffer32_t;
795 static int compat_drm_agp_alloc(struct file *file, unsigned int cmd,
798 drm_agp_buffer32_t __user *argp = (void __user *)arg;
799 drm_agp_buffer32_t req32;
800 struct drm_agp_buffer __user *request;
803 if (copy_from_user(&req32, argp, sizeof(req32)))
806 request = compat_alloc_user_space(sizeof(*request));
807 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
808 || __put_user(req32.size, &request->size)
809 || __put_user(req32.type, &request->type))
812 err = drm_ioctl(file, DRM_IOCTL_AGP_ALLOC, (unsigned long)request);
816 if (__get_user(req32.handle, &request->handle)
817 || __get_user(req32.physical, &request->physical)
818 || copy_to_user(argp, &req32, sizeof(req32))) {
819 drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request);
826 static int compat_drm_agp_free(struct file *file, unsigned int cmd,
829 drm_agp_buffer32_t __user *argp = (void __user *)arg;
830 struct drm_agp_buffer __user *request;
833 request = compat_alloc_user_space(sizeof(*request));
834 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
835 || get_user(handle, &argp->handle)
836 || __put_user(handle, &request->handle))
839 return drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request);
842 typedef struct drm_agp_binding32 {
843 u32 handle; /**< From drm_agp_buffer */
844 u32 offset; /**< In bytes -- will round to page boundary */
845 } drm_agp_binding32_t;
847 static int compat_drm_agp_bind(struct file *file, unsigned int cmd,
850 drm_agp_binding32_t __user *argp = (void __user *)arg;
851 drm_agp_binding32_t req32;
852 struct drm_agp_binding __user *request;
854 if (copy_from_user(&req32, argp, sizeof(req32)))
857 request = compat_alloc_user_space(sizeof(*request));
858 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
859 || __put_user(req32.handle, &request->handle)
860 || __put_user(req32.offset, &request->offset))
863 return drm_ioctl(file, DRM_IOCTL_AGP_BIND, (unsigned long)request);
866 static int compat_drm_agp_unbind(struct file *file, unsigned int cmd,
869 drm_agp_binding32_t __user *argp = (void __user *)arg;
870 struct drm_agp_binding __user *request;
873 request = compat_alloc_user_space(sizeof(*request));
874 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
875 || get_user(handle, &argp->handle)
876 || __put_user(handle, &request->handle))
879 return drm_ioctl(file, DRM_IOCTL_AGP_UNBIND, (unsigned long)request);
881 #endif /* __OS_HAS_AGP */
883 typedef struct drm_scatter_gather32 {
884 u32 size; /**< In bytes -- will round to page boundary */
885 u32 handle; /**< Used for mapping / unmapping */
886 } drm_scatter_gather32_t;
888 static int compat_drm_sg_alloc(struct file *file, unsigned int cmd,
891 drm_scatter_gather32_t __user *argp = (void __user *)arg;
892 struct drm_scatter_gather __user *request;
896 request = compat_alloc_user_space(sizeof(*request));
897 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
898 || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
899 || __get_user(x, &argp->size)
900 || __put_user(x, &request->size))
903 err = drm_ioctl(file, DRM_IOCTL_SG_ALLOC, (unsigned long)request);
907 /* XXX not sure about the handle conversion here... */
908 if (__get_user(x, &request->handle)
909 || __put_user(x >> PAGE_SHIFT, &argp->handle))
915 static int compat_drm_sg_free(struct file *file, unsigned int cmd,
918 drm_scatter_gather32_t __user *argp = (void __user *)arg;
919 struct drm_scatter_gather __user *request;
922 request = compat_alloc_user_space(sizeof(*request));
923 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
924 || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
925 || __get_user(x, &argp->handle)
926 || __put_user(x << PAGE_SHIFT, &request->handle))
929 return drm_ioctl(file, DRM_IOCTL_SG_FREE, (unsigned long)request);
932 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
933 typedef struct drm_update_draw32 {
934 drm_drawable_t handle;
937 /* 64-bit version has a 32-bit pad here */
938 u64 data; /**< Pointer */
939 } __attribute__((packed)) drm_update_draw32_t;
941 static int compat_drm_update_draw(struct file *file, unsigned int cmd,
944 drm_update_draw32_t update32;
945 struct drm_update_draw __user *request;
948 if (copy_from_user(&update32, (void __user *)arg, sizeof(update32)))
951 request = compat_alloc_user_space(sizeof(*request));
952 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) ||
953 __put_user(update32.handle, &request->handle) ||
954 __put_user(update32.type, &request->type) ||
955 __put_user(update32.num, &request->num) ||
956 __put_user(update32.data, &request->data))
959 err = drm_ioctl(file, DRM_IOCTL_UPDATE_DRAW, (unsigned long)request);
964 struct drm_wait_vblank_request32 {
965 enum drm_vblank_seq_type type;
966 unsigned int sequence;
970 struct drm_wait_vblank_reply32 {
971 enum drm_vblank_seq_type type;
972 unsigned int sequence;
977 typedef union drm_wait_vblank32 {
978 struct drm_wait_vblank_request32 request;
979 struct drm_wait_vblank_reply32 reply;
980 } drm_wait_vblank32_t;
982 static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
985 drm_wait_vblank32_t __user *argp = (void __user *)arg;
986 drm_wait_vblank32_t req32;
987 union drm_wait_vblank __user *request;
990 if (copy_from_user(&req32, argp, sizeof(req32)))
993 request = compat_alloc_user_space(sizeof(*request));
994 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
995 || __put_user(req32.request.type, &request->request.type)
996 || __put_user(req32.request.sequence, &request->request.sequence)
997 || __put_user(req32.request.signal, &request->request.signal))
1000 err = drm_ioctl(file, DRM_IOCTL_WAIT_VBLANK, (unsigned long)request);
1004 if (__get_user(req32.reply.type, &request->reply.type)
1005 || __get_user(req32.reply.sequence, &request->reply.sequence)
1006 || __get_user(req32.reply.tval_sec, &request->reply.tval_sec)
1007 || __get_user(req32.reply.tval_usec, &request->reply.tval_usec))
1010 if (copy_to_user(argp, &req32, sizeof(req32)))
1016 drm_ioctl_compat_t *drm_compat_ioctls[] = {
1017 [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
1018 [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
1019 [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
1020 [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)] = compat_drm_getclient,
1021 [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)] = compat_drm_getstats,
1022 [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE32)] = compat_drm_setunique,
1023 [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)] = compat_drm_addmap,
1024 [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS32)] = compat_drm_addbufs,
1025 [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)] = compat_drm_markbufs,
1026 [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS32)] = compat_drm_infobufs,
1027 [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)] = compat_drm_mapbufs,
1028 [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)] = compat_drm_freebufs,
1029 [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)] = compat_drm_rmmap,
1030 [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX32)] = compat_drm_setsareactx,
1031 [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)] = compat_drm_getsareactx,
1032 [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)] = compat_drm_resctx,
1033 [DRM_IOCTL_NR(DRM_IOCTL_DMA32)] = compat_drm_dma,
1035 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)] = compat_drm_agp_enable,
1036 [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)] = compat_drm_agp_info,
1037 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)] = compat_drm_agp_alloc,
1038 [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)] = compat_drm_agp_free,
1039 [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)] = compat_drm_agp_bind,
1040 [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)] = compat_drm_agp_unbind,
1042 [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)] = compat_drm_sg_alloc,
1043 [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)] = compat_drm_sg_free,
1044 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
1045 [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW32)] = compat_drm_update_draw,
1047 [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank,
1051 * Called whenever a 32-bit process running under a 64-bit kernel
1052 * performs an ioctl on /dev/drm.
1054 * \param file_priv DRM file private.
1055 * \param cmd command.
1056 * \param arg user argument.
1057 * \return zero on success or negative number on failure.
1059 long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
1061 unsigned int nr = DRM_IOCTL_NR(cmd);
1062 drm_ioctl_compat_t *fn;
1065 /* Assume that ioctls without an explicit compat routine will just
1066 * work. This may not always be a good assumption, but it's better
1067 * than always failing.
1069 if (nr >= ARRAY_SIZE(drm_compat_ioctls))
1070 return drm_ioctl(filp, cmd, arg);
1072 fn = drm_compat_ioctls[nr];
1075 ret = (*fn) (filp, cmd, arg);
1077 ret = drm_ioctl(filp, cmd, arg);
1082 EXPORT_SYMBOL(drm_compat_ioctl);