Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /** |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 2 | * \file drm_ioctl.c |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * IOCTL processing for DRM |
| 4 | * |
| 5 | * \author Rickard E. (Rik) Faith <faith@valinux.com> |
| 6 | * \author Gareth Hughes <gareth@valinux.com> |
| 7 | */ |
| 8 | |
| 9 | /* |
| 10 | * Created: Fri Jan 8 09:01:26 1999 by faith@valinux.com |
| 11 | * |
| 12 | * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. |
| 13 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. |
| 14 | * All Rights Reserved. |
| 15 | * |
| 16 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 17 | * copy of this software and associated documentation files (the "Software"), |
| 18 | * to deal in the Software without restriction, including without limitation |
| 19 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 20 | * and/or sell copies of the Software, and to permit persons to whom the |
| 21 | * Software is furnished to do so, subject to the following conditions: |
| 22 | * |
| 23 | * The above copyright notice and this permission notice (including the next |
| 24 | * paragraph) shall be included in all copies or substantial portions of the |
| 25 | * Software. |
| 26 | * |
| 27 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 28 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 29 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 30 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 31 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 32 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 33 | * OTHER DEALINGS IN THE SOFTWARE. |
| 34 | */ |
| 35 | |
| 36 | #include "drmP.h" |
| 37 | #include "drm_core.h" |
| 38 | |
| 39 | #include "linux/pci.h" |
Daniel Vetter | b2c606f | 2012-01-17 12:50:12 +0100 | [diff] [blame^] | 40 | #include "linux/export.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
| 42 | /** |
| 43 | * Get the bus id. |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 44 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | * \param inode device inode. |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 46 | * \param file_priv DRM file private. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | * \param cmd command. |
| 48 | * \param arg user argument, pointing to a drm_unique structure. |
| 49 | * \return zero on success or a negative number on failure. |
| 50 | * |
| 51 | * Copies the bus id from drm_device::unique into user space. |
| 52 | */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 53 | int drm_getunique(struct drm_device *dev, void *data, |
| 54 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 56 | struct drm_unique *u = data; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 57 | struct drm_master *master = file_priv->master; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 59 | if (u->unique_len >= master->unique_len) { |
| 60 | if (copy_to_user(u->unique, master->unique, master->unique_len)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | return -EFAULT; |
| 62 | } |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 63 | u->unique_len = master->unique_len; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 64 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | return 0; |
| 66 | } |
| 67 | |
Chris Wilson | 3fb688f | 2010-08-04 11:09:42 +0100 | [diff] [blame] | 68 | static void |
| 69 | drm_unset_busid(struct drm_device *dev, |
| 70 | struct drm_master *master) |
| 71 | { |
| 72 | kfree(dev->devname); |
| 73 | dev->devname = NULL; |
| 74 | |
| 75 | kfree(master->unique); |
| 76 | master->unique = NULL; |
| 77 | master->unique_len = 0; |
| 78 | master->unique_size = 0; |
| 79 | } |
| 80 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | /** |
| 82 | * Set the bus id. |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 83 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | * \param inode device inode. |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 85 | * \param file_priv DRM file private. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | * \param cmd command. |
| 87 | * \param arg user argument, pointing to a drm_unique structure. |
| 88 | * \return zero on success or a negative number on failure. |
| 89 | * |
| 90 | * Copies the bus id from userspace into drm_device::unique, and verifies that |
| 91 | * it matches the device this DRM is attached to (EINVAL otherwise). Deprecated |
| 92 | * in interface version 1.1 and will return EBUSY when setversion has requested |
| 93 | * version 1.1 or greater. |
| 94 | */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 95 | int drm_setunique(struct drm_device *dev, void *data, |
| 96 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 98 | struct drm_unique *u = data; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 99 | struct drm_master *master = file_priv->master; |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 100 | int ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 102 | if (master->unique_len || master->unique) |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 103 | return -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 105 | if (!u->unique_len || u->unique_len > 1024) |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 106 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 108 | if (!dev->driver->bus->set_unique) |
| 109 | return -EINVAL; |
| 110 | |
| 111 | ret = dev->driver->bus->set_unique(dev, master, u); |
| 112 | if (ret) |
Chris Wilson | 3fb688f | 2010-08-04 11:09:42 +0100 | [diff] [blame] | 113 | goto err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | |
| 115 | return 0; |
Chris Wilson | 3fb688f | 2010-08-04 11:09:42 +0100 | [diff] [blame] | 116 | |
| 117 | err: |
| 118 | drm_unset_busid(dev, master); |
| 119 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | } |
| 121 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 122 | static int drm_set_busid(struct drm_device *dev, struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | { |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 124 | struct drm_master *master = file_priv->master; |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 125 | int ret; |
Chris Wilson | 3fb688f | 2010-08-04 11:09:42 +0100 | [diff] [blame] | 126 | |
| 127 | if (master->unique != NULL) |
| 128 | drm_unset_busid(dev, master); |
Dave Airlie | fe34765 | 2006-01-02 21:19:39 +1100 | [diff] [blame] | 129 | |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 130 | ret = dev->driver->bus->set_busid(dev, master); |
| 131 | if (ret) |
| 132 | goto err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 133 | return 0; |
Chris Wilson | 3fb688f | 2010-08-04 11:09:42 +0100 | [diff] [blame] | 134 | err: |
| 135 | drm_unset_busid(dev, master); |
| 136 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | } |
| 138 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | /** |
| 140 | * Get a mapping information. |
| 141 | * |
| 142 | * \param inode device inode. |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 143 | * \param file_priv DRM file private. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | * \param cmd command. |
| 145 | * \param arg user argument, pointing to a drm_map structure. |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 146 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | * \return zero on success or a negative number on failure. |
| 148 | * |
| 149 | * Searches for the mapping with the specified offset and copies its information |
| 150 | * into userspace |
| 151 | */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 152 | int drm_getmap(struct drm_device *dev, void *data, |
| 153 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 155 | struct drm_map *map = data; |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 156 | struct drm_map_list *r_list = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | struct list_head *list; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 158 | int idx; |
| 159 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 161 | idx = map->offset; |
Ilija Hadzic | 09b4ea4 | 2011-10-28 17:43:28 -0400 | [diff] [blame] | 162 | if (idx < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | |
| 165 | i = 0; |
Ilija Hadzic | 09b4ea4 | 2011-10-28 17:43:28 -0400 | [diff] [blame] | 166 | mutex_lock(&dev->struct_mutex); |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 167 | list_for_each(list, &dev->maplist) { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 168 | if (i == idx) { |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 169 | r_list = list_entry(list, struct drm_map_list, head); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | break; |
| 171 | } |
| 172 | i++; |
| 173 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 174 | if (!r_list || !r_list->map) { |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 175 | mutex_unlock(&dev->struct_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | return -EINVAL; |
| 177 | } |
| 178 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 179 | map->offset = r_list->map->offset; |
| 180 | map->size = r_list->map->size; |
| 181 | map->type = r_list->map->type; |
| 182 | map->flags = r_list->map->flags; |
| 183 | map->handle = (void *)(unsigned long) r_list->user_token; |
| 184 | map->mtrr = r_list->map->mtrr; |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 185 | mutex_unlock(&dev->struct_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | return 0; |
| 188 | } |
| 189 | |
| 190 | /** |
| 191 | * Get client information. |
| 192 | * |
| 193 | * \param inode device inode. |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 194 | * \param file_priv DRM file private. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | * \param cmd command. |
| 196 | * \param arg user argument, pointing to a drm_client structure. |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 197 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | * \return zero on success or a negative number on failure. |
| 199 | * |
| 200 | * Searches for the client with the specified index and copies its information |
| 201 | * into userspace |
| 202 | */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 203 | int drm_getclient(struct drm_device *dev, void *data, |
| 204 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 205 | { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 206 | struct drm_client *client = data; |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 207 | struct drm_file *pt; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 208 | int idx; |
| 209 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 211 | idx = client->idx; |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 212 | i = 0; |
Ilija Hadzic | 09b4ea4 | 2011-10-28 17:43:28 -0400 | [diff] [blame] | 213 | |
| 214 | mutex_lock(&dev->struct_mutex); |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 215 | list_for_each_entry(pt, &dev->filelist, lhead) { |
Eric Anholt | b018fcd | 2007-11-22 18:46:54 +1000 | [diff] [blame] | 216 | if (i++ >= idx) { |
| 217 | client->auth = pt->authenticated; |
| 218 | client->pid = pt->pid; |
| 219 | client->uid = pt->uid; |
| 220 | client->magic = pt->magic; |
| 221 | client->iocs = pt->ioctl_count; |
| 222 | mutex_unlock(&dev->struct_mutex); |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 223 | |
Eric Anholt | b018fcd | 2007-11-22 18:46:54 +1000 | [diff] [blame] | 224 | return 0; |
| 225 | } |
| 226 | } |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 227 | mutex_unlock(&dev->struct_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | |
Eric Anholt | b018fcd | 2007-11-22 18:46:54 +1000 | [diff] [blame] | 229 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | } |
| 231 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 232 | /** |
| 233 | * Get statistics information. |
| 234 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | * \param inode device inode. |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 236 | * \param file_priv DRM file private. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | * \param cmd command. |
| 238 | * \param arg user argument, pointing to a drm_stats structure. |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 239 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 240 | * \return zero on success or a negative number on failure. |
| 241 | */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 242 | int drm_getstats(struct drm_device *dev, void *data, |
| 243 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 245 | struct drm_stats *stats = data; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 246 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | |
Li Zefan | 246a3d1 | 2007-11-05 12:53:09 +1000 | [diff] [blame] | 248 | memset(stats, 0, sizeof(*stats)); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 249 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | for (i = 0; i < dev->counters; i++) { |
| 251 | if (dev->types[i] == _DRM_STAT_LOCK) |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 252 | stats->data[i].value = |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 253 | (file_priv->master->lock.hw_lock ? file_priv->master->lock.hw_lock->lock : 0); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 254 | else |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 255 | stats->data[i].value = atomic_read(&dev->counts[i]); |
| 256 | stats->data[i].type = dev->types[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 258 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 259 | stats->count = dev->counters; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | return 0; |
| 262 | } |
| 263 | |
| 264 | /** |
Ben Skeggs | 9f35421 | 2011-02-21 11:17:35 +1000 | [diff] [blame] | 265 | * Get device/driver capabilities |
| 266 | */ |
| 267 | int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv) |
| 268 | { |
| 269 | struct drm_get_cap *req = data; |
| 270 | |
| 271 | req->value = 0; |
Dave Airlie | e73f88a | 2011-03-04 14:50:28 +1000 | [diff] [blame] | 272 | switch (req->capability) { |
| 273 | case DRM_CAP_DUMB_BUFFER: |
| 274 | if (dev->driver->dumb_create) |
| 275 | req->value = 1; |
| 276 | break; |
Dave Airlie | 51eab41 | 2011-03-24 20:54:35 +1000 | [diff] [blame] | 277 | case DRM_CAP_VBLANK_HIGH_CRTC: |
Ilija Hadzic | 19b01b5 | 2011-03-18 16:58:04 -0500 | [diff] [blame] | 278 | req->value = 1; |
| 279 | break; |
Dave Airlie | e73f88a | 2011-03-04 14:50:28 +1000 | [diff] [blame] | 280 | default: |
| 281 | return -EINVAL; |
| 282 | } |
Ben Skeggs | 9f35421 | 2011-02-21 11:17:35 +1000 | [diff] [blame] | 283 | return 0; |
| 284 | } |
| 285 | |
| 286 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | * Setversion ioctl. |
| 288 | * |
| 289 | * \param inode device inode. |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 290 | * \param file_priv DRM file private. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | * \param cmd command. |
| 292 | * \param arg user argument, pointing to a drm_lock structure. |
| 293 | * \return zero on success or negative number on failure. |
| 294 | * |
| 295 | * Sets the requested interface version |
| 296 | */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 297 | int drm_setversion(struct drm_device *dev, void *data, struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 299 | struct drm_set_version *sv = data; |
| 300 | int if_version, retcode = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 302 | if (sv->drm_di_major != -1) { |
| 303 | if (sv->drm_di_major != DRM_IF_MAJOR || |
| 304 | sv->drm_di_minor < 0 || sv->drm_di_minor > DRM_IF_MINOR) { |
| 305 | retcode = -EINVAL; |
| 306 | goto done; |
| 307 | } |
| 308 | if_version = DRM_IF_VERSION(sv->drm_di_major, |
| 309 | sv->drm_di_minor); |
Dave Airlie | 3d77461 | 2006-08-07 20:07:43 +1000 | [diff] [blame] | 310 | dev->if_version = max(if_version, dev->if_version); |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 311 | if (sv->drm_di_minor >= 1) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | /* |
| 313 | * Version 1.1 includes tying of DRM to specific device |
Benjamin Herrenschmidt | c17c2f8 | 2010-08-06 13:55:10 +1000 | [diff] [blame] | 314 | * Version 1.4 has proper PCI domain support |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | */ |
Chris Wilson | 3fb688f | 2010-08-04 11:09:42 +0100 | [diff] [blame] | 316 | retcode = drm_set_busid(dev, file_priv); |
| 317 | if (retcode) |
| 318 | goto done; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | } |
| 320 | } |
| 321 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 322 | if (sv->drm_dd_major != -1) { |
| 323 | if (sv->drm_dd_major != dev->driver->major || |
| 324 | sv->drm_dd_minor < 0 || sv->drm_dd_minor > |
| 325 | dev->driver->minor) { |
| 326 | retcode = -EINVAL; |
| 327 | goto done; |
| 328 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | |
| 330 | if (dev->driver->set_version) |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 331 | dev->driver->set_version(dev, sv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | } |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 333 | |
| 334 | done: |
| 335 | sv->drm_di_major = DRM_IF_MAJOR; |
| 336 | sv->drm_di_minor = DRM_IF_MINOR; |
| 337 | sv->drm_dd_major = dev->driver->major; |
| 338 | sv->drm_dd_minor = dev->driver->minor; |
| 339 | |
| 340 | return retcode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | /** No-op ioctl. */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 344 | int drm_noop(struct drm_device *dev, void *data, |
| 345 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | { |
| 347 | DRM_DEBUG("\n"); |
| 348 | return 0; |
| 349 | } |
Daniel Vetter | b2c606f | 2012-01-17 12:50:12 +0100 | [diff] [blame^] | 350 | EXPORT_SYMBOL(drm_noop); |