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>
31 #include <linux/ratelimit.h>
32 #include <linux/export.h>
37 #define DRM_IOCTL_VERSION32 DRM_IOWR(0x00, drm_version32_t)
38 #define DRM_IOCTL_GET_UNIQUE32 DRM_IOWR(0x01, drm_unique32_t)
39 #define DRM_IOCTL_GET_MAP32 DRM_IOWR(0x04, drm_map32_t)
40 #define DRM_IOCTL_GET_CLIENT32 DRM_IOWR(0x05, drm_client32_t)
41 #define DRM_IOCTL_GET_STATS32 DRM_IOR( 0x06, drm_stats32_t)
43 #define DRM_IOCTL_SET_UNIQUE32 DRM_IOW( 0x10, drm_unique32_t)
44 #define DRM_IOCTL_ADD_MAP32 DRM_IOWR(0x15, drm_map32_t)
45 #define DRM_IOCTL_ADD_BUFS32 DRM_IOWR(0x16, drm_buf_desc32_t)
46 #define DRM_IOCTL_MARK_BUFS32 DRM_IOW( 0x17, drm_buf_desc32_t)
47 #define DRM_IOCTL_INFO_BUFS32 DRM_IOWR(0x18, drm_buf_info32_t)
48 #define DRM_IOCTL_MAP_BUFS32 DRM_IOWR(0x19, drm_buf_map32_t)
49 #define DRM_IOCTL_FREE_BUFS32 DRM_IOW( 0x1a, drm_buf_free32_t)
51 #define DRM_IOCTL_RM_MAP32 DRM_IOW( 0x1b, drm_map32_t)
53 #define DRM_IOCTL_SET_SAREA_CTX32 DRM_IOW( 0x1c, drm_ctx_priv_map32_t)
54 #define DRM_IOCTL_GET_SAREA_CTX32 DRM_IOWR(0x1d, drm_ctx_priv_map32_t)
56 #define DRM_IOCTL_RES_CTX32 DRM_IOWR(0x26, drm_ctx_res32_t)
57 #define DRM_IOCTL_DMA32 DRM_IOWR(0x29, drm_dma32_t)
59 #define DRM_IOCTL_AGP_ENABLE32 DRM_IOW( 0x32, drm_agp_mode32_t)
60 #define DRM_IOCTL_AGP_INFO32 DRM_IOR( 0x33, drm_agp_info32_t)
61 #define DRM_IOCTL_AGP_ALLOC32 DRM_IOWR(0x34, drm_agp_buffer32_t)
62 #define DRM_IOCTL_AGP_FREE32 DRM_IOW( 0x35, drm_agp_buffer32_t)
63 #define DRM_IOCTL_AGP_BIND32 DRM_IOW( 0x36, drm_agp_binding32_t)
64 #define DRM_IOCTL_AGP_UNBIND32 DRM_IOW( 0x37, drm_agp_binding32_t)
66 #define DRM_IOCTL_SG_ALLOC32 DRM_IOW( 0x38, drm_scatter_gather32_t)
67 #define DRM_IOCTL_SG_FREE32 DRM_IOW( 0x39, drm_scatter_gather32_t)
69 #define DRM_IOCTL_UPDATE_DRAW32 DRM_IOW( 0x3f, drm_update_draw32_t)
71 #define DRM_IOCTL_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_t)
73 typedef struct drm_version_32 {
74 int version_major; /**< Major version */
75 int version_minor; /**< Minor version */
76 int version_patchlevel; /**< Patch level */
77 u32 name_len; /**< Length of name buffer */
78 u32 name; /**< Name of driver */
79 u32 date_len; /**< Length of date buffer */
80 u32 date; /**< User-space buffer to hold date */
81 u32 desc_len; /**< Length of desc buffer */
82 u32 desc; /**< User-space buffer to hold desc */
85 static int compat_drm_version(struct file *file, unsigned int cmd,
89 struct drm_version __user *version;
92 if (copy_from_user(&v32, (void __user *)arg, sizeof(v32)))
95 version = compat_alloc_user_space(sizeof(*version));
96 if (!access_ok(VERIFY_WRITE, version, sizeof(*version)))
98 if (__put_user(v32.name_len, &version->name_len)
99 || __put_user((void __user *)(unsigned long)v32.name,
101 || __put_user(v32.date_len, &version->date_len)
102 || __put_user((void __user *)(unsigned long)v32.date,
104 || __put_user(v32.desc_len, &version->desc_len)
105 || __put_user((void __user *)(unsigned long)v32.desc,
109 err = drm_ioctl(file,
110 DRM_IOCTL_VERSION, (unsigned long)version);
114 if (__get_user(v32.version_major, &version->version_major)
115 || __get_user(v32.version_minor, &version->version_minor)
116 || __get_user(v32.version_patchlevel, &version->version_patchlevel)
117 || __get_user(v32.name_len, &version->name_len)
118 || __get_user(v32.date_len, &version->date_len)
119 || __get_user(v32.desc_len, &version->desc_len))
122 if (copy_to_user((void __user *)arg, &v32, sizeof(v32)))
127 typedef struct drm_unique32 {
128 u32 unique_len; /**< Length of unique */
129 u32 unique; /**< Unique name for driver instantiation */
132 static int compat_drm_getunique(struct file *file, unsigned int cmd,
136 struct drm_unique __user *u;
139 if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
142 u = compat_alloc_user_space(sizeof(*u));
143 if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
145 if (__put_user(uq32.unique_len, &u->unique_len)
146 || __put_user((void __user *)(unsigned long)uq32.unique,
150 err = drm_ioctl(file, DRM_IOCTL_GET_UNIQUE, (unsigned long)u);
154 if (__get_user(uq32.unique_len, &u->unique_len))
156 if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32)))
161 static int compat_drm_setunique(struct file *file, unsigned int cmd,
165 struct drm_unique __user *u;
167 if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
170 u = compat_alloc_user_space(sizeof(*u));
171 if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
173 if (__put_user(uq32.unique_len, &u->unique_len)
174 || __put_user((void __user *)(unsigned long)uq32.unique,
178 return drm_ioctl(file, DRM_IOCTL_SET_UNIQUE, (unsigned long)u);
181 typedef struct drm_map32 {
182 u32 offset; /**< Requested physical address (0 for SAREA)*/
183 u32 size; /**< Requested physical size (bytes) */
184 enum drm_map_type type; /**< Type of memory to map */
185 enum drm_map_flags flags; /**< Flags */
186 u32 handle; /**< User-space: "Handle" to pass to mmap() */
187 int mtrr; /**< MTRR slot used */
190 static int compat_drm_getmap(struct file *file, unsigned int cmd,
193 drm_map32_t __user *argp = (void __user *)arg;
195 struct drm_map __user *map;
199 if (get_user(idx, &argp->offset))
202 map = compat_alloc_user_space(sizeof(*map));
203 if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
205 if (__put_user(idx, &map->offset))
208 err = drm_ioctl(file, DRM_IOCTL_GET_MAP, (unsigned long)map);
212 if (__get_user(m32.offset, &map->offset)
213 || __get_user(m32.size, &map->size)
214 || __get_user(m32.type, &map->type)
215 || __get_user(m32.flags, &map->flags)
216 || __get_user(handle, &map->handle)
217 || __get_user(m32.mtrr, &map->mtrr))
220 m32.handle = (unsigned long)handle;
221 if (copy_to_user(argp, &m32, sizeof(m32)))
227 static int compat_drm_addmap(struct file *file, unsigned int cmd,
230 drm_map32_t __user *argp = (void __user *)arg;
232 struct drm_map __user *map;
236 if (copy_from_user(&m32, argp, sizeof(m32)))
239 map = compat_alloc_user_space(sizeof(*map));
240 if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
242 if (__put_user(m32.offset, &map->offset)
243 || __put_user(m32.size, &map->size)
244 || __put_user(m32.type, &map->type)
245 || __put_user(m32.flags, &map->flags))
248 err = drm_ioctl(file, 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)
259 printk_ratelimited(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, DRM_IOCTL_RM_MAP, (unsigned long)map);
288 typedef struct drm_client32 {
289 int idx; /**< Which client desired? */
290 int auth; /**< Is client authenticated? */
291 u32 pid; /**< Process ID */
292 u32 uid; /**< User ID */
293 u32 magic; /**< Magic */
294 u32 iocs; /**< Ioctl count */
297 static int compat_drm_getclient(struct file *file, unsigned int cmd,
301 drm_client32_t __user *argp = (void __user *)arg;
302 struct drm_client __user *client;
305 if (get_user(idx, &argp->idx))
308 client = compat_alloc_user_space(sizeof(*client));
309 if (!access_ok(VERIFY_WRITE, client, sizeof(*client)))
311 if (__put_user(idx, &client->idx))
314 err = drm_ioctl(file, DRM_IOCTL_GET_CLIENT, (unsigned long)client);
318 if (__get_user(c32.auth, &client->auth)
319 || __get_user(c32.pid, &client->pid)
320 || __get_user(c32.uid, &client->uid)
321 || __get_user(c32.magic, &client->magic)
322 || __get_user(c32.iocs, &client->iocs))
325 if (copy_to_user(argp, &c32, sizeof(c32)))
330 typedef struct drm_stats32 {
334 enum drm_stat_type type;
338 static int compat_drm_getstats(struct file *file, unsigned int cmd,
342 drm_stats32_t __user *argp = (void __user *)arg;
343 struct drm_stats __user *stats;
346 stats = compat_alloc_user_space(sizeof(*stats));
347 if (!access_ok(VERIFY_WRITE, stats, sizeof(*stats)))
350 err = drm_ioctl(file, DRM_IOCTL_GET_STATS, (unsigned long)stats);
354 if (__get_user(s32.count, &stats->count))
356 for (i = 0; i < 15; ++i)
357 if (__get_user(s32.data[i].value, &stats->data[i].value)
358 || __get_user(s32.data[i].type, &stats->data[i].type))
361 if (copy_to_user(argp, &s32, sizeof(s32)))
366 typedef struct drm_buf_desc32 {
367 int count; /**< Number of buffers of this size */
368 int size; /**< Size in bytes */
369 int low_mark; /**< Low water mark */
370 int high_mark; /**< High water mark */
372 u32 agp_start; /**< Start address in the AGP aperture */
375 static int compat_drm_addbufs(struct file *file, unsigned int cmd,
378 drm_buf_desc32_t __user *argp = (void __user *)arg;
379 struct drm_buf_desc __user *buf;
381 unsigned long agp_start;
383 buf = compat_alloc_user_space(sizeof(*buf));
384 if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf))
385 || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)))
388 if (__copy_in_user(buf, argp, offsetof(drm_buf_desc32_t, agp_start))
389 || __get_user(agp_start, &argp->agp_start)
390 || __put_user(agp_start, &buf->agp_start))
393 err = drm_ioctl(file, DRM_IOCTL_ADD_BUFS, (unsigned long)buf);
397 if (__copy_in_user(argp, buf, offsetof(drm_buf_desc32_t, agp_start))
398 || __get_user(agp_start, &buf->agp_start)
399 || __put_user(agp_start, &argp->agp_start))
405 static int compat_drm_markbufs(struct file *file, unsigned int cmd,
408 drm_buf_desc32_t b32;
409 drm_buf_desc32_t __user *argp = (void __user *)arg;
410 struct drm_buf_desc __user *buf;
412 if (copy_from_user(&b32, argp, sizeof(b32)))
415 buf = compat_alloc_user_space(sizeof(*buf));
416 if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf)))
419 if (__put_user(b32.size, &buf->size)
420 || __put_user(b32.low_mark, &buf->low_mark)
421 || __put_user(b32.high_mark, &buf->high_mark))
424 return drm_ioctl(file, DRM_IOCTL_MARK_BUFS, (unsigned long)buf);
427 typedef struct drm_buf_info32 {
428 int count; /**< Entries in list */
432 static int compat_drm_infobufs(struct file *file, unsigned int cmd,
435 drm_buf_info32_t req32;
436 drm_buf_info32_t __user *argp = (void __user *)arg;
437 drm_buf_desc32_t __user *to;
438 struct drm_buf_info __user *request;
439 struct drm_buf_desc __user *list;
444 if (copy_from_user(&req32, argp, sizeof(req32)))
448 to = (drm_buf_desc32_t __user *) (unsigned long)req32.list;
452 && !access_ok(VERIFY_WRITE, to, count * sizeof(drm_buf_desc32_t)))
455 nbytes = sizeof(*request) + count * sizeof(struct drm_buf_desc);
456 request = compat_alloc_user_space(nbytes);
457 if (!access_ok(VERIFY_WRITE, request, nbytes))
459 list = (struct drm_buf_desc *) (request + 1);
461 if (__put_user(count, &request->count)
462 || __put_user(list, &request->list))
465 err = drm_ioctl(file, DRM_IOCTL_INFO_BUFS, (unsigned long)request);
469 if (__get_user(actual, &request->count))
472 for (i = 0; i < actual; ++i)
473 if (__copy_in_user(&to[i], &list[i],
474 offsetof(struct drm_buf_desc, flags)))
477 if (__put_user(actual, &argp->count))
483 typedef struct drm_buf_pub32 {
484 int idx; /**< Index into the master buffer list */
485 int total; /**< Buffer size */
486 int used; /**< Amount of buffer in use (for DMA) */
487 u32 address; /**< Address of buffer */
490 typedef struct drm_buf_map32 {
491 int count; /**< Length of the buffer list */
492 u32 virtual; /**< Mmap'd area in user-virtual */
493 u32 list; /**< Buffer information */
496 static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
499 drm_buf_map32_t __user *argp = (void __user *)arg;
500 drm_buf_map32_t req32;
501 drm_buf_pub32_t __user *list32;
502 struct drm_buf_map __user *request;
503 struct drm_buf_pub __user *list;
509 if (copy_from_user(&req32, argp, sizeof(req32)))
512 list32 = (void __user *)(unsigned long)req32.list;
516 nbytes = sizeof(*request) + count * sizeof(struct drm_buf_pub);
517 request = compat_alloc_user_space(nbytes);
518 if (!access_ok(VERIFY_WRITE, request, nbytes))
520 list = (struct drm_buf_pub *) (request + 1);
522 if (__put_user(count, &request->count)
523 || __put_user(list, &request->list))
526 err = drm_ioctl(file, DRM_IOCTL_MAP_BUFS, (unsigned long)request);
530 if (__get_user(actual, &request->count))
533 for (i = 0; i < actual; ++i)
534 if (__copy_in_user(&list32[i], &list[i],
535 offsetof(struct drm_buf_pub, address))
536 || __get_user(addr, &list[i].address)
537 || __put_user((unsigned long)addr,
541 if (__put_user(actual, &argp->count)
542 || __get_user(addr, &request->virtual)
543 || __put_user((unsigned long)addr, &argp->virtual))
549 typedef struct drm_buf_free32 {
554 static int compat_drm_freebufs(struct file *file, unsigned int cmd,
557 drm_buf_free32_t req32;
558 struct drm_buf_free __user *request;
559 drm_buf_free32_t __user *argp = (void __user *)arg;
561 if (copy_from_user(&req32, argp, sizeof(req32)))
564 request = compat_alloc_user_space(sizeof(*request));
565 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
567 if (__put_user(req32.count, &request->count)
568 || __put_user((int __user *)(unsigned long)req32.list,
572 return drm_ioctl(file, DRM_IOCTL_FREE_BUFS, (unsigned long)request);
575 typedef struct drm_ctx_priv_map32 {
576 unsigned int ctx_id; /**< Context requesting private mapping */
577 u32 handle; /**< Handle of map */
578 } drm_ctx_priv_map32_t;
580 static int compat_drm_setsareactx(struct file *file, unsigned int cmd,
583 drm_ctx_priv_map32_t req32;
584 struct drm_ctx_priv_map __user *request;
585 drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
587 if (copy_from_user(&req32, argp, sizeof(req32)))
590 request = compat_alloc_user_space(sizeof(*request));
591 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
593 if (__put_user(req32.ctx_id, &request->ctx_id)
594 || __put_user((void *)(unsigned long)req32.handle,
598 return drm_ioctl(file, DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request);
601 static int compat_drm_getsareactx(struct file *file, unsigned int cmd,
604 struct drm_ctx_priv_map __user *request;
605 drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
610 if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp))
611 || __get_user(ctx_id, &argp->ctx_id))
614 request = compat_alloc_user_space(sizeof(*request));
615 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
617 if (__put_user(ctx_id, &request->ctx_id))
620 err = drm_ioctl(file, DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request);
624 if (__get_user(handle, &request->handle)
625 || __put_user((unsigned long)handle, &argp->handle))
631 typedef struct drm_ctx_res32 {
636 static int compat_drm_resctx(struct file *file, unsigned int cmd,
639 drm_ctx_res32_t __user *argp = (void __user *)arg;
640 drm_ctx_res32_t res32;
641 struct drm_ctx_res __user *res;
644 if (copy_from_user(&res32, argp, sizeof(res32)))
647 res = compat_alloc_user_space(sizeof(*res));
648 if (!access_ok(VERIFY_WRITE, res, sizeof(*res)))
650 if (__put_user(res32.count, &res->count)
651 || __put_user((struct drm_ctx __user *) (unsigned long)res32.contexts,
655 err = drm_ioctl(file, DRM_IOCTL_RES_CTX, (unsigned long)res);
659 if (__get_user(res32.count, &res->count)
660 || __put_user(res32.count, &argp->count))
666 typedef struct drm_dma32 {
667 int context; /**< Context handle */
668 int send_count; /**< Number of buffers to send */
669 u32 send_indices; /**< List of handles to buffers */
670 u32 send_sizes; /**< Lengths of data to send */
671 enum drm_dma_flags flags; /**< Flags */
672 int request_count; /**< Number of buffers requested */
673 int request_size; /**< Desired size for buffers */
674 u32 request_indices; /**< Buffer information */
676 int granted_count; /**< Number of buffers granted */
679 static int compat_drm_dma(struct file *file, unsigned int cmd,
683 drm_dma32_t __user *argp = (void __user *)arg;
684 struct drm_dma __user *d;
687 if (copy_from_user(&d32, argp, sizeof(d32)))
690 d = compat_alloc_user_space(sizeof(*d));
691 if (!access_ok(VERIFY_WRITE, d, sizeof(*d)))
694 if (__put_user(d32.context, &d->context)
695 || __put_user(d32.send_count, &d->send_count)
696 || __put_user((int __user *)(unsigned long)d32.send_indices,
698 || __put_user((int __user *)(unsigned long)d32.send_sizes,
700 || __put_user(d32.flags, &d->flags)
701 || __put_user(d32.request_count, &d->request_count)
702 || __put_user((int __user *)(unsigned long)d32.request_indices,
704 || __put_user((int __user *)(unsigned long)d32.request_sizes,
708 err = drm_ioctl(file, DRM_IOCTL_DMA, (unsigned long)d);
712 if (__get_user(d32.request_size, &d->request_size)
713 || __get_user(d32.granted_count, &d->granted_count)
714 || __put_user(d32.request_size, &argp->request_size)
715 || __put_user(d32.granted_count, &argp->granted_count))
722 typedef struct drm_agp_mode32 {
723 u32 mode; /**< AGP mode */
726 static int compat_drm_agp_enable(struct file *file, unsigned int cmd,
729 drm_agp_mode32_t __user *argp = (void __user *)arg;
730 drm_agp_mode32_t m32;
731 struct drm_agp_mode __user *mode;
733 if (get_user(m32.mode, &argp->mode))
736 mode = compat_alloc_user_space(sizeof(*mode));
737 if (put_user(m32.mode, &mode->mode))
740 return drm_ioctl(file, DRM_IOCTL_AGP_ENABLE, (unsigned long)mode);
743 typedef struct drm_agp_info32 {
744 int agp_version_major;
745 int agp_version_minor;
747 u32 aperture_base; /* physical address */
748 u32 aperture_size; /* bytes */
749 u32 memory_allowed; /* bytes */
752 /* PCI information */
753 unsigned short id_vendor;
754 unsigned short id_device;
757 static int compat_drm_agp_info(struct file *file, unsigned int cmd,
760 drm_agp_info32_t __user *argp = (void __user *)arg;
761 drm_agp_info32_t i32;
762 struct drm_agp_info __user *info;
765 info = compat_alloc_user_space(sizeof(*info));
766 if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
769 err = drm_ioctl(file, DRM_IOCTL_AGP_INFO, (unsigned long)info);
773 if (__get_user(i32.agp_version_major, &info->agp_version_major)
774 || __get_user(i32.agp_version_minor, &info->agp_version_minor)
775 || __get_user(i32.mode, &info->mode)
776 || __get_user(i32.aperture_base, &info->aperture_base)
777 || __get_user(i32.aperture_size, &info->aperture_size)
778 || __get_user(i32.memory_allowed, &info->memory_allowed)
779 || __get_user(i32.memory_used, &info->memory_used)
780 || __get_user(i32.id_vendor, &info->id_vendor)
781 || __get_user(i32.id_device, &info->id_device))
784 if (copy_to_user(argp, &i32, sizeof(i32)))
790 typedef struct drm_agp_buffer32 {
791 u32 size; /**< In bytes -- will round to page boundary */
792 u32 handle; /**< Used for binding / unbinding */
793 u32 type; /**< Type of memory to allocate */
794 u32 physical; /**< Physical used by i810 */
795 } drm_agp_buffer32_t;
797 static int compat_drm_agp_alloc(struct file *file, unsigned int cmd,
800 drm_agp_buffer32_t __user *argp = (void __user *)arg;
801 drm_agp_buffer32_t req32;
802 struct drm_agp_buffer __user *request;
805 if (copy_from_user(&req32, argp, sizeof(req32)))
808 request = compat_alloc_user_space(sizeof(*request));
809 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
810 || __put_user(req32.size, &request->size)
811 || __put_user(req32.type, &request->type))
814 err = drm_ioctl(file, DRM_IOCTL_AGP_ALLOC, (unsigned long)request);
818 if (__get_user(req32.handle, &request->handle)
819 || __get_user(req32.physical, &request->physical)
820 || copy_to_user(argp, &req32, sizeof(req32))) {
821 drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request);
828 static int compat_drm_agp_free(struct file *file, unsigned int cmd,
831 drm_agp_buffer32_t __user *argp = (void __user *)arg;
832 struct drm_agp_buffer __user *request;
835 request = compat_alloc_user_space(sizeof(*request));
836 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
837 || get_user(handle, &argp->handle)
838 || __put_user(handle, &request->handle))
841 return drm_ioctl(file, DRM_IOCTL_AGP_FREE, (unsigned long)request);
844 typedef struct drm_agp_binding32 {
845 u32 handle; /**< From drm_agp_buffer */
846 u32 offset; /**< In bytes -- will round to page boundary */
847 } drm_agp_binding32_t;
849 static int compat_drm_agp_bind(struct file *file, unsigned int cmd,
852 drm_agp_binding32_t __user *argp = (void __user *)arg;
853 drm_agp_binding32_t req32;
854 struct drm_agp_binding __user *request;
856 if (copy_from_user(&req32, argp, sizeof(req32)))
859 request = compat_alloc_user_space(sizeof(*request));
860 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
861 || __put_user(req32.handle, &request->handle)
862 || __put_user(req32.offset, &request->offset))
865 return drm_ioctl(file, DRM_IOCTL_AGP_BIND, (unsigned long)request);
868 static int compat_drm_agp_unbind(struct file *file, unsigned int cmd,
871 drm_agp_binding32_t __user *argp = (void __user *)arg;
872 struct drm_agp_binding __user *request;
875 request = compat_alloc_user_space(sizeof(*request));
876 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
877 || get_user(handle, &argp->handle)
878 || __put_user(handle, &request->handle))
881 return drm_ioctl(file, DRM_IOCTL_AGP_UNBIND, (unsigned long)request);
883 #endif /* __OS_HAS_AGP */
885 typedef struct drm_scatter_gather32 {
886 u32 size; /**< In bytes -- will round to page boundary */
887 u32 handle; /**< Used for mapping / unmapping */
888 } drm_scatter_gather32_t;
890 static int compat_drm_sg_alloc(struct file *file, unsigned int cmd,
893 drm_scatter_gather32_t __user *argp = (void __user *)arg;
894 struct drm_scatter_gather __user *request;
898 request = compat_alloc_user_space(sizeof(*request));
899 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
900 || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
901 || __get_user(x, &argp->size)
902 || __put_user(x, &request->size))
905 err = drm_ioctl(file, DRM_IOCTL_SG_ALLOC, (unsigned long)request);
909 /* XXX not sure about the handle conversion here... */
910 if (__get_user(x, &request->handle)
911 || __put_user(x >> PAGE_SHIFT, &argp->handle))
917 static int compat_drm_sg_free(struct file *file, unsigned int cmd,
920 drm_scatter_gather32_t __user *argp = (void __user *)arg;
921 struct drm_scatter_gather __user *request;
924 request = compat_alloc_user_space(sizeof(*request));
925 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
926 || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
927 || __get_user(x, &argp->handle)
928 || __put_user(x << PAGE_SHIFT, &request->handle))
931 return drm_ioctl(file, DRM_IOCTL_SG_FREE, (unsigned long)request);
934 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
935 typedef struct drm_update_draw32 {
936 drm_drawable_t handle;
939 /* 64-bit version has a 32-bit pad here */
940 u64 data; /**< Pointer */
941 } __attribute__((packed)) drm_update_draw32_t;
943 static int compat_drm_update_draw(struct file *file, unsigned int cmd,
946 drm_update_draw32_t update32;
947 struct drm_update_draw __user *request;
950 if (copy_from_user(&update32, (void __user *)arg, sizeof(update32)))
953 request = compat_alloc_user_space(sizeof(*request));
954 if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) ||
955 __put_user(update32.handle, &request->handle) ||
956 __put_user(update32.type, &request->type) ||
957 __put_user(update32.num, &request->num) ||
958 __put_user(update32.data, &request->data))
961 err = drm_ioctl(file, DRM_IOCTL_UPDATE_DRAW, (unsigned long)request);
966 struct drm_wait_vblank_request32 {
967 enum drm_vblank_seq_type type;
968 unsigned int sequence;
972 struct drm_wait_vblank_reply32 {
973 enum drm_vblank_seq_type type;
974 unsigned int sequence;
979 typedef union drm_wait_vblank32 {
980 struct drm_wait_vblank_request32 request;
981 struct drm_wait_vblank_reply32 reply;
982 } drm_wait_vblank32_t;
984 static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
987 drm_wait_vblank32_t __user *argp = (void __user *)arg;
988 drm_wait_vblank32_t req32;
989 union drm_wait_vblank __user *request;
992 if (copy_from_user(&req32, argp, sizeof(req32)))
995 request = compat_alloc_user_space(sizeof(*request));
996 if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
997 || __put_user(req32.request.type, &request->request.type)
998 || __put_user(req32.request.sequence, &request->request.sequence)
999 || __put_user(req32.request.signal, &request->request.signal))
1002 err = drm_ioctl(file, DRM_IOCTL_WAIT_VBLANK, (unsigned long)request);
1006 if (__get_user(req32.reply.type, &request->reply.type)
1007 || __get_user(req32.reply.sequence, &request->reply.sequence)
1008 || __get_user(req32.reply.tval_sec, &request->reply.tval_sec)
1009 || __get_user(req32.reply.tval_usec, &request->reply.tval_usec))
1012 if (copy_to_user(argp, &req32, sizeof(req32)))
1018 drm_ioctl_compat_t *drm_compat_ioctls[] = {
1019 [DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
1020 [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
1021 [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
1022 [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)] = compat_drm_getclient,
1023 [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)] = compat_drm_getstats,
1024 [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE32)] = compat_drm_setunique,
1025 [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)] = compat_drm_addmap,
1026 [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS32)] = compat_drm_addbufs,
1027 [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)] = compat_drm_markbufs,
1028 [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS32)] = compat_drm_infobufs,
1029 [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)] = compat_drm_mapbufs,
1030 [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)] = compat_drm_freebufs,
1031 [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)] = compat_drm_rmmap,
1032 [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX32)] = compat_drm_setsareactx,
1033 [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)] = compat_drm_getsareactx,
1034 [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)] = compat_drm_resctx,
1035 [DRM_IOCTL_NR(DRM_IOCTL_DMA32)] = compat_drm_dma,
1037 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)] = compat_drm_agp_enable,
1038 [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)] = compat_drm_agp_info,
1039 [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)] = compat_drm_agp_alloc,
1040 [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)] = compat_drm_agp_free,
1041 [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)] = compat_drm_agp_bind,
1042 [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)] = compat_drm_agp_unbind,
1044 [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)] = compat_drm_sg_alloc,
1045 [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)] = compat_drm_sg_free,
1046 #if defined(CONFIG_X86) || defined(CONFIG_IA64)
1047 [DRM_IOCTL_NR(DRM_IOCTL_UPDATE_DRAW32)] = compat_drm_update_draw,
1049 [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank,
1053 * Called whenever a 32-bit process running under a 64-bit kernel
1054 * performs an ioctl on /dev/drm.
1056 * \param file_priv DRM file private.
1057 * \param cmd command.
1058 * \param arg user argument.
1059 * \return zero on success or negative number on failure.
1061 long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
1063 unsigned int nr = DRM_IOCTL_NR(cmd);
1064 drm_ioctl_compat_t *fn;
1067 /* Assume that ioctls without an explicit compat routine will just
1068 * work. This may not always be a good assumption, but it's better
1069 * than always failing.
1071 if (nr >= ARRAY_SIZE(drm_compat_ioctls))
1072 return drm_ioctl(filp, cmd, arg);
1074 fn = drm_compat_ioctls[nr];
1077 ret = (*fn) (filp, cmd, arg);
1079 ret = drm_ioctl(filp, cmd, arg);
1084 EXPORT_SYMBOL(drm_compat_ioctl);