Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /** |
| 2 | * \file drm_stub.h |
| 3 | * Stub support |
| 4 | * |
| 5 | * \author Rickard E. (Rik) Faith <faith@valinux.com> |
| 6 | */ |
| 7 | |
| 8 | /* |
| 9 | * Created: Fri Jan 19 10:48:35 2001 by faith@acm.org |
| 10 | * |
| 11 | * Copyright 2001 VA Linux Systems, Inc., Sunnyvale, California. |
| 12 | * All Rights Reserved. |
| 13 | * |
| 14 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 15 | * copy of this software and associated documentation files (the "Software"), |
| 16 | * to deal in the Software without restriction, including without limitation |
| 17 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 18 | * and/or sell copies of the Software, and to permit persons to whom the |
| 19 | * Software is furnished to do so, subject to the following conditions: |
| 20 | * |
| 21 | * The above copyright notice and this permission notice (including the next |
| 22 | * paragraph) shall be included in all copies or substantial portions of the |
| 23 | * Software. |
| 24 | * |
| 25 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 26 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 27 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 28 | * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 29 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 30 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 31 | * DEALINGS IN THE SOFTWARE. |
| 32 | */ |
| 33 | |
| 34 | #include <linux/module.h> |
| 35 | #include <linux/moduleparam.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 36 | #include <linux/slab.h> |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 37 | #include <drm/drmP.h> |
| 38 | #include <drm/drm_core.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 40 | unsigned int drm_debug = 0; /* 1 to enable debug output */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | EXPORT_SYMBOL(drm_debug); |
| 42 | |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 43 | unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */ |
| 44 | EXPORT_SYMBOL(drm_vblank_offdelay); |
| 45 | |
| 46 | unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */ |
| 47 | EXPORT_SYMBOL(drm_timestamp_precision); |
| 48 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 49 | MODULE_AUTHOR(CORE_AUTHOR); |
| 50 | MODULE_DESCRIPTION(CORE_DESC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | MODULE_LICENSE("GPL and additional rights"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | MODULE_PARM_DESC(debug, "Enable debug output"); |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 53 | MODULE_PARM_DESC(vblankoffdelay, "Delay until vblank irq auto-disable [msecs]"); |
| 54 | MODULE_PARM_DESC(timestamp_precision_usec, "Max. error on timestamps [usecs]"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | |
Dave Jones | c075814 | 2005-10-03 15:02:20 -0400 | [diff] [blame] | 56 | module_param_named(debug, drm_debug, int, 0600); |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 57 | module_param_named(vblankoffdelay, drm_vblank_offdelay, int, 0600); |
| 58 | module_param_named(timestamp_precision_usec, drm_timestamp_precision, int, 0600); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 60 | struct idr drm_minors_idr; |
| 61 | |
Greg Kroah-Hartman | 0650fd5 | 2006-01-20 14:08:59 -0800 | [diff] [blame] | 62 | struct class *drm_class; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | struct proc_dir_entry *drm_proc_root; |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 64 | struct dentry *drm_debugfs_root; |
Joe Perches | 5ad3d88 | 2011-04-17 20:35:51 -0700 | [diff] [blame] | 65 | |
| 66 | int drm_err(const char *func, const char *format, ...) |
| 67 | { |
| 68 | struct va_format vaf; |
| 69 | va_list args; |
| 70 | int r; |
| 71 | |
| 72 | va_start(args, format); |
| 73 | |
| 74 | vaf.fmt = format; |
| 75 | vaf.va = &args; |
| 76 | |
| 77 | r = printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* %pV", func, &vaf); |
| 78 | |
| 79 | va_end(args); |
| 80 | |
| 81 | return r; |
| 82 | } |
| 83 | EXPORT_SYMBOL(drm_err); |
| 84 | |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 85 | void drm_ut_debug_printk(unsigned int request_level, |
| 86 | const char *prefix, |
| 87 | const char *function_name, |
| 88 | const char *format, ...) |
| 89 | { |
| 90 | va_list args; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 92 | if (drm_debug & request_level) { |
| 93 | if (function_name) |
| 94 | printk(KERN_DEBUG "[%s:%s], ", prefix, function_name); |
| 95 | va_start(args, format); |
| 96 | vprintk(format, args); |
| 97 | va_end(args); |
| 98 | } |
| 99 | } |
| 100 | EXPORT_SYMBOL(drm_ut_debug_printk); |
Joe Perches | 5ad3d88 | 2011-04-17 20:35:51 -0700 | [diff] [blame] | 101 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 102 | static int drm_minor_get_id(struct drm_device *dev, int type) |
| 103 | { |
| 104 | int new_id; |
| 105 | int ret; |
| 106 | int base = 0, limit = 63; |
| 107 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 108 | if (type == DRM_MINOR_CONTROL) { |
| 109 | base += 64; |
| 110 | limit = base + 127; |
| 111 | } else if (type == DRM_MINOR_RENDER) { |
| 112 | base += 128; |
| 113 | limit = base + 255; |
| 114 | } |
| 115 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 116 | again: |
| 117 | if (idr_pre_get(&drm_minors_idr, GFP_KERNEL) == 0) { |
| 118 | DRM_ERROR("Out of memory expanding drawable idr\n"); |
| 119 | return -ENOMEM; |
| 120 | } |
| 121 | mutex_lock(&dev->struct_mutex); |
| 122 | ret = idr_get_new_above(&drm_minors_idr, NULL, |
| 123 | base, &new_id); |
| 124 | mutex_unlock(&dev->struct_mutex); |
Ville Syrjälä | f1ae126 | 2012-03-15 19:58:31 +0200 | [diff] [blame] | 125 | if (ret == -EAGAIN) |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 126 | goto again; |
Ville Syrjälä | f1ae126 | 2012-03-15 19:58:31 +0200 | [diff] [blame] | 127 | else if (ret) |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 128 | return ret; |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 129 | |
| 130 | if (new_id >= limit) { |
| 131 | idr_remove(&drm_minors_idr, new_id); |
| 132 | return -EINVAL; |
| 133 | } |
| 134 | return new_id; |
| 135 | } |
| 136 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 137 | struct drm_master *drm_master_create(struct drm_minor *minor) |
| 138 | { |
| 139 | struct drm_master *master; |
| 140 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 141 | master = kzalloc(sizeof(*master), GFP_KERNEL); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 142 | if (!master) |
| 143 | return NULL; |
| 144 | |
| 145 | kref_init(&master->refcount); |
| 146 | spin_lock_init(&master->lock.spinlock); |
| 147 | init_waitqueue_head(&master->lock.lock_queue); |
| 148 | drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER); |
| 149 | INIT_LIST_HEAD(&master->magicfree); |
| 150 | master->minor = minor; |
| 151 | |
| 152 | list_add_tail(&master->head, &minor->master_list); |
| 153 | |
| 154 | return master; |
| 155 | } |
| 156 | |
| 157 | struct drm_master *drm_master_get(struct drm_master *master) |
| 158 | { |
| 159 | kref_get(&master->refcount); |
| 160 | return master; |
| 161 | } |
Thomas Hellstrom | 85bb0c3 | 2009-12-06 21:46:28 +0100 | [diff] [blame] | 162 | EXPORT_SYMBOL(drm_master_get); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 163 | |
| 164 | static void drm_master_destroy(struct kref *kref) |
| 165 | { |
| 166 | struct drm_master *master = container_of(kref, struct drm_master, refcount); |
| 167 | struct drm_magic_entry *pt, *next; |
| 168 | struct drm_device *dev = master->minor->dev; |
Dave Airlie | c1ff85d | 2009-01-19 17:17:58 +1000 | [diff] [blame] | 169 | struct drm_map_list *r_list, *list_temp; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 170 | |
| 171 | list_del(&master->head); |
| 172 | |
| 173 | if (dev->driver->master_destroy) |
| 174 | dev->driver->master_destroy(dev, master); |
| 175 | |
Dave Airlie | c1ff85d | 2009-01-19 17:17:58 +1000 | [diff] [blame] | 176 | list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) { |
| 177 | if (r_list->master == master) { |
| 178 | drm_rmmap_locked(dev, r_list->map); |
| 179 | r_list = NULL; |
| 180 | } |
| 181 | } |
| 182 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 183 | if (master->unique) { |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 184 | kfree(master->unique); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 185 | master->unique = NULL; |
| 186 | master->unique_len = 0; |
| 187 | } |
| 188 | |
Chris Wilson | 6e35023 | 2010-07-24 18:29:36 +0100 | [diff] [blame] | 189 | kfree(dev->devname); |
| 190 | dev->devname = NULL; |
| 191 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 192 | list_for_each_entry_safe(pt, next, &master->magicfree, head) { |
| 193 | list_del(&pt->head); |
| 194 | drm_ht_remove_item(&master->magiclist, &pt->hash_item); |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 195 | kfree(pt); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 196 | } |
| 197 | |
| 198 | drm_ht_remove(&master->magiclist); |
| 199 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 200 | kfree(master); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 201 | } |
| 202 | |
| 203 | void drm_master_put(struct drm_master **master) |
| 204 | { |
| 205 | kref_put(&(*master)->refcount, drm_master_destroy); |
| 206 | *master = NULL; |
| 207 | } |
Thomas Hellstrom | 85bb0c3 | 2009-12-06 21:46:28 +0100 | [diff] [blame] | 208 | EXPORT_SYMBOL(drm_master_put); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 209 | |
| 210 | int drm_setmaster_ioctl(struct drm_device *dev, void *data, |
| 211 | struct drm_file *file_priv) |
| 212 | { |
Laurent Pinchart | 4a1b071 | 2012-05-17 13:27:21 +0200 | [diff] [blame] | 213 | int ret; |
Thomas Hellstrom | 862302f | 2009-12-02 18:15:25 +0000 | [diff] [blame] | 214 | |
Jonas Bonn | 6b00842 | 2009-04-16 09:00:02 +0200 | [diff] [blame] | 215 | if (file_priv->is_master) |
| 216 | return 0; |
| 217 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 218 | if (file_priv->minor->master && file_priv->minor->master != file_priv->master) |
| 219 | return -EINVAL; |
| 220 | |
| 221 | if (!file_priv->master) |
| 222 | return -EINVAL; |
| 223 | |
David Herrmann | 08bec5b | 2012-11-15 13:04:37 +0000 | [diff] [blame^] | 224 | if (file_priv->minor->master) |
| 225 | return -EINVAL; |
| 226 | |
| 227 | mutex_lock(&dev->struct_mutex); |
| 228 | file_priv->minor->master = drm_master_get(file_priv->master); |
| 229 | file_priv->is_master = 1; |
| 230 | if (dev->driver->master_set) { |
| 231 | ret = dev->driver->master_set(dev, file_priv, false); |
| 232 | if (unlikely(ret != 0)) { |
| 233 | file_priv->is_master = 0; |
| 234 | drm_master_put(&file_priv->minor->master); |
Thomas Hellstrom | 862302f | 2009-12-02 18:15:25 +0000 | [diff] [blame] | 235 | } |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 236 | } |
David Herrmann | 08bec5b | 2012-11-15 13:04:37 +0000 | [diff] [blame^] | 237 | mutex_unlock(&dev->struct_mutex); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 238 | |
| 239 | return 0; |
| 240 | } |
| 241 | |
| 242 | int drm_dropmaster_ioctl(struct drm_device *dev, void *data, |
| 243 | struct drm_file *file_priv) |
| 244 | { |
Jonas Bonn | 6b00842 | 2009-04-16 09:00:02 +0200 | [diff] [blame] | 245 | if (!file_priv->is_master) |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 246 | return -EINVAL; |
Jonas Bonn | 6b00842 | 2009-04-16 09:00:02 +0200 | [diff] [blame] | 247 | |
Dave Airlie | 07f1c7a | 2009-04-20 09:32:50 +1000 | [diff] [blame] | 248 | if (!file_priv->minor->master) |
| 249 | return -EINVAL; |
| 250 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 251 | mutex_lock(&dev->struct_mutex); |
Thomas Hellstrom | 862302f | 2009-12-02 18:15:25 +0000 | [diff] [blame] | 252 | if (dev->driver->master_drop) |
| 253 | dev->driver->master_drop(dev, file_priv, false); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 254 | drm_master_put(&file_priv->minor->master); |
Jonas Bonn | 6b00842 | 2009-04-16 09:00:02 +0200 | [diff] [blame] | 255 | file_priv->is_master = 0; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 256 | mutex_unlock(&dev->struct_mutex); |
| 257 | return 0; |
| 258 | } |
| 259 | |
Jordan Crouse | dcdb167 | 2010-05-27 13:40:25 -0600 | [diff] [blame] | 260 | int drm_fill_in_dev(struct drm_device *dev, |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 261 | const struct pci_device_id *ent, |
| 262 | struct drm_driver *driver) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | { |
| 264 | int retcode; |
| 265 | |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 266 | INIT_LIST_HEAD(&dev->filelist); |
Dave Airlie | 7c158ac | 2007-07-11 12:05:36 +1000 | [diff] [blame] | 267 | INIT_LIST_HEAD(&dev->ctxlist); |
| 268 | INIT_LIST_HEAD(&dev->vmalist); |
| 269 | INIT_LIST_HEAD(&dev->maplist); |
Kristian Høgsberg | c9a9c5e | 2009-09-12 04:33:34 +1000 | [diff] [blame] | 270 | INIT_LIST_HEAD(&dev->vblank_event_list); |
Dave Airlie | 7c158ac | 2007-07-11 12:05:36 +1000 | [diff] [blame] | 271 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | spin_lock_init(&dev->count_lock); |
Kristian Høgsberg | c9a9c5e | 2009-09-12 04:33:34 +1000 | [diff] [blame] | 273 | spin_lock_init(&dev->event_lock); |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 274 | mutex_init(&dev->struct_mutex); |
| 275 | mutex_init(&dev->ctxlist_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | |
Thomas Hellstrom | 8d153f7 | 2006-08-07 22:36:47 +1000 | [diff] [blame] | 277 | if (drm_ht_create(&dev->map_hash, 12)) { |
Thomas Hellstrom | 8d153f7 | 2006-08-07 22:36:47 +1000 | [diff] [blame] | 278 | return -ENOMEM; |
| 279 | } |
Dave Airlie | 836cf04 | 2005-07-10 19:27:04 +1000 | [diff] [blame] | 280 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | /* the DRM has 6 basic counters */ |
| 282 | dev->counters = 6; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 283 | dev->types[0] = _DRM_STAT_LOCK; |
| 284 | dev->types[1] = _DRM_STAT_OPENS; |
| 285 | dev->types[2] = _DRM_STAT_CLOSES; |
| 286 | dev->types[3] = _DRM_STAT_IOCTLS; |
| 287 | dev->types[4] = _DRM_STAT_LOCKS; |
| 288 | dev->types[5] = _DRM_STAT_UNLOCKS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | |
| 290 | dev->driver = driver; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 291 | |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 292 | if (dev->driver->bus->agp_init) { |
| 293 | retcode = dev->driver->bus->agp_init(dev); |
| 294 | if (retcode) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | goto error_out_unreg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | } |
| 297 | |
Dave Airlie | 2716a02 | 2007-11-22 18:23:13 +1000 | [diff] [blame] | 298 | |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 299 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 300 | retcode = drm_ctxbitmap_init(dev); |
| 301 | if (retcode) { |
| 302 | DRM_ERROR("Cannot allocate memory for context bitmap.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | goto error_out_unreg; |
| 304 | } |
| 305 | |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 306 | if (driver->driver_features & DRIVER_GEM) { |
| 307 | retcode = drm_gem_init(dev); |
| 308 | if (retcode) { |
| 309 | DRM_ERROR("Cannot initialize graphics execution " |
| 310 | "manager (GEM)\n"); |
| 311 | goto error_out_unreg; |
| 312 | } |
| 313 | } |
| 314 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | return 0; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 316 | |
| 317 | error_out_unreg: |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 318 | drm_lastclose(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | return retcode; |
| 320 | } |
Dave Airlie | 9c1dfc5 | 2012-03-20 06:59:29 +0000 | [diff] [blame] | 321 | EXPORT_SYMBOL(drm_fill_in_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | /** |
| 325 | * Get a secondary minor number. |
| 326 | * |
| 327 | * \param dev device data structure |
| 328 | * \param sec-minor structure to hold the assigned minor |
| 329 | * \return negative number on failure. |
| 330 | * |
| 331 | * Search an empty entry and initialize it to the given parameters, and |
| 332 | * create the proc init entry via proc_init(). This routines assigns |
| 333 | * minor numbers to secondary heads of multi-headed cards |
| 334 | */ |
Jordan Crouse | dcdb167 | 2010-05-27 13:40:25 -0600 | [diff] [blame] | 335 | int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | { |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 337 | struct drm_minor *new_minor; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | int ret; |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 339 | int minor_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | |
| 341 | DRM_DEBUG("\n"); |
| 342 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 343 | minor_id = drm_minor_get_id(dev, type); |
| 344 | if (minor_id < 0) |
| 345 | return minor_id; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 346 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 347 | new_minor = kzalloc(sizeof(struct drm_minor), GFP_KERNEL); |
| 348 | if (!new_minor) { |
| 349 | ret = -ENOMEM; |
| 350 | goto err_idr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 351 | } |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 352 | |
| 353 | new_minor->type = type; |
| 354 | new_minor->device = MKDEV(DRM_MAJOR, minor_id); |
| 355 | new_minor->dev = dev; |
| 356 | new_minor->index = minor_id; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 357 | INIT_LIST_HEAD(&new_minor->master_list); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 358 | |
| 359 | idr_replace(&drm_minors_idr, new_minor, minor_id); |
| 360 | |
| 361 | if (type == DRM_MINOR_LEGACY) { |
| 362 | ret = drm_proc_init(new_minor, minor_id, drm_proc_root); |
| 363 | if (ret) { |
| 364 | DRM_ERROR("DRM: Failed to initialize /proc/dri.\n"); |
| 365 | goto err_mem; |
| 366 | } |
| 367 | } else |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 368 | new_minor->proc_root = NULL; |
| 369 | |
| 370 | #if defined(CONFIG_DEBUG_FS) |
| 371 | ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root); |
| 372 | if (ret) { |
GeunSik Lim | 156f5a7 | 2009-06-02 15:01:37 +0900 | [diff] [blame] | 373 | DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n"); |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 374 | goto err_g2; |
| 375 | } |
| 376 | #endif |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 377 | |
| 378 | ret = drm_sysfs_device_add(new_minor); |
| 379 | if (ret) { |
| 380 | printk(KERN_ERR |
| 381 | "DRM: Error sysfs_device_add.\n"); |
| 382 | goto err_g2; |
| 383 | } |
| 384 | *minor = new_minor; |
| 385 | |
| 386 | DRM_DEBUG("new minor assigned %d\n", minor_id); |
| 387 | return 0; |
| 388 | |
| 389 | |
| 390 | err_g2: |
| 391 | if (new_minor->type == DRM_MINOR_LEGACY) |
| 392 | drm_proc_cleanup(new_minor, drm_proc_root); |
| 393 | err_mem: |
| 394 | kfree(new_minor); |
| 395 | err_idr: |
| 396 | idr_remove(&drm_minors_idr, minor_id); |
| 397 | *minor = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | return ret; |
| 399 | } |
Dave Airlie | 9c1dfc5 | 2012-03-20 06:59:29 +0000 | [diff] [blame] | 400 | EXPORT_SYMBOL(drm_get_minor); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 401 | |
Dave Airlie | c94f702 | 2005-07-07 21:03:38 +1000 | [diff] [blame] | 402 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | * Put a secondary minor number. |
| 404 | * |
| 405 | * \param sec_minor - structure to be released |
| 406 | * \return always zero |
| 407 | * |
| 408 | * Cleans up the proc resources. Not legal for this to be the |
| 409 | * last minor released. |
| 410 | * |
| 411 | */ |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 412 | int drm_put_minor(struct drm_minor **minor_p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | { |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 414 | struct drm_minor *minor = *minor_p; |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 415 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 416 | DRM_DEBUG("release secondary minor %d\n", minor->index); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 417 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 418 | if (minor->type == DRM_MINOR_LEGACY) |
| 419 | drm_proc_cleanup(minor, drm_proc_root); |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 420 | #if defined(CONFIG_DEBUG_FS) |
| 421 | drm_debugfs_cleanup(minor); |
| 422 | #endif |
| 423 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 424 | drm_sysfs_device_remove(minor); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 425 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 426 | idr_remove(&drm_minors_idr, minor->index); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 427 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 428 | kfree(minor); |
| 429 | *minor_p = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 430 | return 0; |
| 431 | } |
Dave Airlie | 9c1dfc5 | 2012-03-20 06:59:29 +0000 | [diff] [blame] | 432 | EXPORT_SYMBOL(drm_put_minor); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 433 | |
Dave Airlie | 2c07a21 | 2012-02-20 14:18:07 +0000 | [diff] [blame] | 434 | static void drm_unplug_minor(struct drm_minor *minor) |
| 435 | { |
| 436 | drm_sysfs_device_remove(minor); |
| 437 | } |
| 438 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 439 | /** |
| 440 | * Called via drm_exit() at module unload time or when pci device is |
| 441 | * unplugged. |
| 442 | * |
| 443 | * Cleans up all DRM device, calling drm_lastclose(). |
| 444 | * |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 445 | */ |
| 446 | void drm_put_dev(struct drm_device *dev) |
| 447 | { |
Julia Lawall | ecca068 | 2009-07-11 09:50:09 +0200 | [diff] [blame] | 448 | struct drm_driver *driver; |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 449 | struct drm_map_list *r_list, *list_temp; |
| 450 | |
| 451 | DRM_DEBUG("\n"); |
| 452 | |
| 453 | if (!dev) { |
| 454 | DRM_ERROR("cleanup called no dev\n"); |
| 455 | return; |
| 456 | } |
Julia Lawall | ecca068 | 2009-07-11 09:50:09 +0200 | [diff] [blame] | 457 | driver = dev->driver; |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 458 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 459 | drm_lastclose(dev); |
| 460 | |
| 461 | if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) && |
| 462 | dev->agp && dev->agp->agp_mtrr >= 0) { |
| 463 | int retval; |
| 464 | retval = mtrr_del(dev->agp->agp_mtrr, |
| 465 | dev->agp->agp_info.aper_base, |
| 466 | dev->agp->agp_info.aper_size * 1024 * 1024); |
| 467 | DRM_DEBUG("mtrr_del=%d\n", retval); |
| 468 | } |
| 469 | |
| 470 | if (dev->driver->unload) |
| 471 | dev->driver->unload(dev); |
| 472 | |
| 473 | if (drm_core_has_AGP(dev) && dev->agp) { |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 474 | kfree(dev->agp); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 475 | dev->agp = NULL; |
| 476 | } |
| 477 | |
Jesse Barnes | b78315f | 2010-03-26 11:07:16 -0700 | [diff] [blame] | 478 | drm_vblank_cleanup(dev); |
| 479 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 480 | list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) |
| 481 | drm_rmmap(dev, r_list->map); |
Ben Skeggs | 30ddbd9 | 2009-03-02 11:13:04 +1000 | [diff] [blame] | 482 | drm_ht_remove(&dev->map_hash); |
| 483 | |
| 484 | drm_ctxbitmap_cleanup(dev); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 485 | |
| 486 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
| 487 | drm_put_minor(&dev->control); |
| 488 | |
| 489 | if (driver->driver_features & DRIVER_GEM) |
| 490 | drm_gem_destroy(dev); |
| 491 | |
| 492 | drm_put_minor(&dev->primary); |
| 493 | |
Dave Airlie | a250b9f | 2010-12-15 07:13:55 +1000 | [diff] [blame] | 494 | list_del(&dev->driver_item); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 495 | if (dev->devname) { |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 496 | kfree(dev->devname); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 497 | dev->devname = NULL; |
| 498 | } |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 499 | kfree(dev); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 500 | } |
| 501 | EXPORT_SYMBOL(drm_put_dev); |
Dave Airlie | 2c07a21 | 2012-02-20 14:18:07 +0000 | [diff] [blame] | 502 | |
| 503 | void drm_unplug_dev(struct drm_device *dev) |
| 504 | { |
| 505 | /* for a USB device */ |
| 506 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
| 507 | drm_unplug_minor(dev->control); |
| 508 | drm_unplug_minor(dev->primary); |
| 509 | |
| 510 | mutex_lock(&drm_global_mutex); |
| 511 | |
| 512 | drm_device_set_unplugged(dev); |
| 513 | |
| 514 | if (dev->open_count == 0) { |
| 515 | drm_put_dev(dev); |
| 516 | } |
| 517 | mutex_unlock(&drm_global_mutex); |
| 518 | } |
| 519 | EXPORT_SYMBOL(drm_unplug_dev); |