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 | |
Imre Deak | c61eef7 | 2012-10-23 18:53:26 +0000 | [diff] [blame] | 49 | /* |
| 50 | * Default to use monotonic timestamps for wait-for-vblank and page-flip |
| 51 | * complete events. |
| 52 | */ |
| 53 | unsigned int drm_timestamp_monotonic = 1; |
| 54 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 55 | MODULE_AUTHOR(CORE_AUTHOR); |
| 56 | MODULE_DESCRIPTION(CORE_DESC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | MODULE_LICENSE("GPL and additional rights"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | MODULE_PARM_DESC(debug, "Enable debug output"); |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 59 | MODULE_PARM_DESC(vblankoffdelay, "Delay until vblank irq auto-disable [msecs]"); |
| 60 | MODULE_PARM_DESC(timestamp_precision_usec, "Max. error on timestamps [usecs]"); |
Imre Deak | c61eef7 | 2012-10-23 18:53:26 +0000 | [diff] [blame] | 61 | MODULE_PARM_DESC(timestamp_monotonic, "Use monotonic timestamps"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | |
Dave Jones | c075814 | 2005-10-03 15:02:20 -0400 | [diff] [blame] | 63 | module_param_named(debug, drm_debug, int, 0600); |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 64 | module_param_named(vblankoffdelay, drm_vblank_offdelay, int, 0600); |
| 65 | module_param_named(timestamp_precision_usec, drm_timestamp_precision, int, 0600); |
Imre Deak | c61eef7 | 2012-10-23 18:53:26 +0000 | [diff] [blame] | 66 | module_param_named(timestamp_monotonic, drm_timestamp_monotonic, int, 0600); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 68 | struct idr drm_minors_idr; |
| 69 | |
Greg Kroah-Hartman | 0650fd5 | 2006-01-20 14:08:59 -0800 | [diff] [blame] | 70 | struct class *drm_class; |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 71 | struct dentry *drm_debugfs_root; |
Joe Perches | 5ad3d88 | 2011-04-17 20:35:51 -0700 | [diff] [blame] | 72 | |
| 73 | int drm_err(const char *func, const char *format, ...) |
| 74 | { |
| 75 | struct va_format vaf; |
| 76 | va_list args; |
| 77 | int r; |
| 78 | |
| 79 | va_start(args, format); |
| 80 | |
| 81 | vaf.fmt = format; |
| 82 | vaf.va = &args; |
| 83 | |
| 84 | r = printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* %pV", func, &vaf); |
| 85 | |
| 86 | va_end(args); |
| 87 | |
| 88 | return r; |
| 89 | } |
| 90 | EXPORT_SYMBOL(drm_err); |
| 91 | |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 92 | void drm_ut_debug_printk(unsigned int request_level, |
| 93 | const char *prefix, |
| 94 | const char *function_name, |
| 95 | const char *format, ...) |
| 96 | { |
| 97 | va_list args; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 99 | if (drm_debug & request_level) { |
| 100 | if (function_name) |
| 101 | printk(KERN_DEBUG "[%s:%s], ", prefix, function_name); |
| 102 | va_start(args, format); |
| 103 | vprintk(format, args); |
| 104 | va_end(args); |
| 105 | } |
| 106 | } |
| 107 | EXPORT_SYMBOL(drm_ut_debug_printk); |
Joe Perches | 5ad3d88 | 2011-04-17 20:35:51 -0700 | [diff] [blame] | 108 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 109 | static int drm_minor_get_id(struct drm_device *dev, int type) |
| 110 | { |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 111 | int ret; |
| 112 | int base = 0, limit = 63; |
| 113 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 114 | if (type == DRM_MINOR_CONTROL) { |
Kristian Høgsberg | 24f4003 | 2013-08-08 19:10:21 +0200 | [diff] [blame] | 115 | base += 64; |
| 116 | limit = base + 63; |
| 117 | } else if (type == DRM_MINOR_RENDER) { |
| 118 | base += 128; |
| 119 | limit = base + 63; |
| 120 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 121 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 122 | mutex_lock(&dev->struct_mutex); |
Tejun Heo | 2e92881 | 2013-02-27 17:04:08 -0800 | [diff] [blame] | 123 | ret = idr_alloc(&drm_minors_idr, NULL, base, limit, GFP_KERNEL); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 124 | mutex_unlock(&dev->struct_mutex); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 125 | |
Tejun Heo | 2e92881 | 2013-02-27 17:04:08 -0800 | [diff] [blame] | 126 | return ret == -ENOSPC ? -EINVAL : ret; |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 127 | } |
| 128 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 129 | struct drm_master *drm_master_create(struct drm_minor *minor) |
| 130 | { |
| 131 | struct drm_master *master; |
| 132 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 133 | master = kzalloc(sizeof(*master), GFP_KERNEL); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 134 | if (!master) |
| 135 | return NULL; |
| 136 | |
| 137 | kref_init(&master->refcount); |
| 138 | spin_lock_init(&master->lock.spinlock); |
| 139 | init_waitqueue_head(&master->lock.lock_queue); |
| 140 | drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER); |
| 141 | INIT_LIST_HEAD(&master->magicfree); |
| 142 | master->minor = minor; |
| 143 | |
| 144 | list_add_tail(&master->head, &minor->master_list); |
| 145 | |
| 146 | return master; |
| 147 | } |
| 148 | |
| 149 | struct drm_master *drm_master_get(struct drm_master *master) |
| 150 | { |
| 151 | kref_get(&master->refcount); |
| 152 | return master; |
| 153 | } |
Thomas Hellstrom | 85bb0c3 | 2009-12-06 21:46:28 +0100 | [diff] [blame] | 154 | EXPORT_SYMBOL(drm_master_get); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 155 | |
| 156 | static void drm_master_destroy(struct kref *kref) |
| 157 | { |
| 158 | struct drm_master *master = container_of(kref, struct drm_master, refcount); |
| 159 | struct drm_magic_entry *pt, *next; |
| 160 | struct drm_device *dev = master->minor->dev; |
Dave Airlie | c1ff85d | 2009-01-19 17:17:58 +1000 | [diff] [blame] | 161 | struct drm_map_list *r_list, *list_temp; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 162 | |
| 163 | list_del(&master->head); |
| 164 | |
| 165 | if (dev->driver->master_destroy) |
| 166 | dev->driver->master_destroy(dev, master); |
| 167 | |
Dave Airlie | c1ff85d | 2009-01-19 17:17:58 +1000 | [diff] [blame] | 168 | list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) { |
| 169 | if (r_list->master == master) { |
| 170 | drm_rmmap_locked(dev, r_list->map); |
| 171 | r_list = NULL; |
| 172 | } |
| 173 | } |
| 174 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 175 | if (master->unique) { |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 176 | kfree(master->unique); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 177 | master->unique = NULL; |
| 178 | master->unique_len = 0; |
| 179 | } |
| 180 | |
Chris Wilson | 6e35023 | 2010-07-24 18:29:36 +0100 | [diff] [blame] | 181 | kfree(dev->devname); |
| 182 | dev->devname = NULL; |
| 183 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 184 | list_for_each_entry_safe(pt, next, &master->magicfree, head) { |
| 185 | list_del(&pt->head); |
| 186 | drm_ht_remove_item(&master->magiclist, &pt->hash_item); |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 187 | kfree(pt); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | drm_ht_remove(&master->magiclist); |
| 191 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 192 | kfree(master); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 193 | } |
| 194 | |
| 195 | void drm_master_put(struct drm_master **master) |
| 196 | { |
| 197 | kref_put(&(*master)->refcount, drm_master_destroy); |
| 198 | *master = NULL; |
| 199 | } |
Thomas Hellstrom | 85bb0c3 | 2009-12-06 21:46:28 +0100 | [diff] [blame] | 200 | EXPORT_SYMBOL(drm_master_put); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 201 | |
| 202 | int drm_setmaster_ioctl(struct drm_device *dev, void *data, |
| 203 | struct drm_file *file_priv) |
| 204 | { |
Benjamin Gaignard | 53ef160 | 2013-06-26 17:58:59 +0200 | [diff] [blame] | 205 | int ret = 0; |
Thomas Hellstrom | 862302f | 2009-12-02 18:15:25 +0000 | [diff] [blame] | 206 | |
Jonas Bonn | 6b00842 | 2009-04-16 09:00:02 +0200 | [diff] [blame] | 207 | if (file_priv->is_master) |
| 208 | return 0; |
| 209 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 210 | if (file_priv->minor->master && file_priv->minor->master != file_priv->master) |
| 211 | return -EINVAL; |
| 212 | |
| 213 | if (!file_priv->master) |
| 214 | return -EINVAL; |
| 215 | |
David Herrmann | 08bec5b | 2012-11-15 13:04:37 +0000 | [diff] [blame] | 216 | if (file_priv->minor->master) |
| 217 | return -EINVAL; |
| 218 | |
| 219 | mutex_lock(&dev->struct_mutex); |
| 220 | file_priv->minor->master = drm_master_get(file_priv->master); |
| 221 | file_priv->is_master = 1; |
| 222 | if (dev->driver->master_set) { |
| 223 | ret = dev->driver->master_set(dev, file_priv, false); |
| 224 | if (unlikely(ret != 0)) { |
| 225 | file_priv->is_master = 0; |
| 226 | drm_master_put(&file_priv->minor->master); |
Thomas Hellstrom | 862302f | 2009-12-02 18:15:25 +0000 | [diff] [blame] | 227 | } |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 228 | } |
David Herrmann | 08bec5b | 2012-11-15 13:04:37 +0000 | [diff] [blame] | 229 | mutex_unlock(&dev->struct_mutex); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 230 | |
Benjamin Gaignard | 53ef160 | 2013-06-26 17:58:59 +0200 | [diff] [blame] | 231 | return ret; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 232 | } |
| 233 | |
| 234 | int drm_dropmaster_ioctl(struct drm_device *dev, void *data, |
| 235 | struct drm_file *file_priv) |
| 236 | { |
Jonas Bonn | 6b00842 | 2009-04-16 09:00:02 +0200 | [diff] [blame] | 237 | if (!file_priv->is_master) |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 238 | return -EINVAL; |
Jonas Bonn | 6b00842 | 2009-04-16 09:00:02 +0200 | [diff] [blame] | 239 | |
Dave Airlie | 07f1c7a | 2009-04-20 09:32:50 +1000 | [diff] [blame] | 240 | if (!file_priv->minor->master) |
| 241 | return -EINVAL; |
| 242 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 243 | mutex_lock(&dev->struct_mutex); |
Thomas Hellstrom | 862302f | 2009-12-02 18:15:25 +0000 | [diff] [blame] | 244 | if (dev->driver->master_drop) |
| 245 | dev->driver->master_drop(dev, file_priv, false); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 246 | drm_master_put(&file_priv->minor->master); |
Jonas Bonn | 6b00842 | 2009-04-16 09:00:02 +0200 | [diff] [blame] | 247 | file_priv->is_master = 0; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 248 | mutex_unlock(&dev->struct_mutex); |
| 249 | return 0; |
| 250 | } |
| 251 | |
Jordan Crouse | dcdb167 | 2010-05-27 13:40:25 -0600 | [diff] [blame] | 252 | int drm_fill_in_dev(struct drm_device *dev, |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 253 | const struct pci_device_id *ent, |
| 254 | struct drm_driver *driver) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | { |
| 256 | int retcode; |
| 257 | |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 258 | INIT_LIST_HEAD(&dev->filelist); |
Dave Airlie | 7c158ac | 2007-07-11 12:05:36 +1000 | [diff] [blame] | 259 | INIT_LIST_HEAD(&dev->ctxlist); |
| 260 | INIT_LIST_HEAD(&dev->vmalist); |
| 261 | INIT_LIST_HEAD(&dev->maplist); |
Kristian Høgsberg | c9a9c5e | 2009-09-12 04:33:34 +1000 | [diff] [blame] | 262 | INIT_LIST_HEAD(&dev->vblank_event_list); |
Dave Airlie | 7c158ac | 2007-07-11 12:05:36 +1000 | [diff] [blame] | 263 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | spin_lock_init(&dev->count_lock); |
Kristian Høgsberg | c9a9c5e | 2009-09-12 04:33:34 +1000 | [diff] [blame] | 265 | spin_lock_init(&dev->event_lock); |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 266 | mutex_init(&dev->struct_mutex); |
| 267 | mutex_init(&dev->ctxlist_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | |
Thomas Hellstrom | 8d153f7 | 2006-08-07 22:36:47 +1000 | [diff] [blame] | 269 | if (drm_ht_create(&dev->map_hash, 12)) { |
Thomas Hellstrom | 8d153f7 | 2006-08-07 22:36:47 +1000 | [diff] [blame] | 270 | return -ENOMEM; |
| 271 | } |
Dave Airlie | 836cf04 | 2005-07-10 19:27:04 +1000 | [diff] [blame] | 272 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | /* the DRM has 6 basic counters */ |
| 274 | dev->counters = 6; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 275 | dev->types[0] = _DRM_STAT_LOCK; |
| 276 | dev->types[1] = _DRM_STAT_OPENS; |
| 277 | dev->types[2] = _DRM_STAT_CLOSES; |
| 278 | dev->types[3] = _DRM_STAT_IOCTLS; |
| 279 | dev->types[4] = _DRM_STAT_LOCKS; |
| 280 | dev->types[5] = _DRM_STAT_UNLOCKS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | |
| 282 | dev->driver = driver; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 283 | |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 284 | if (dev->driver->bus->agp_init) { |
| 285 | retcode = dev->driver->bus->agp_init(dev); |
| 286 | if (retcode) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 287 | goto error_out_unreg; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | } |
| 289 | |
Daniel Vetter | 7c51013 | 2013-08-08 15:41:21 +0200 | [diff] [blame] | 290 | drm_legacy_ctxbitmap_init(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 292 | if (driver->driver_features & DRIVER_GEM) { |
| 293 | retcode = drm_gem_init(dev); |
| 294 | if (retcode) { |
| 295 | DRM_ERROR("Cannot initialize graphics execution " |
| 296 | "manager (GEM)\n"); |
| 297 | goto error_out_unreg; |
| 298 | } |
| 299 | } |
| 300 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 301 | return 0; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 302 | |
| 303 | error_out_unreg: |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 304 | drm_lastclose(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | return retcode; |
| 306 | } |
Dave Airlie | 9c1dfc5 | 2012-03-20 06:59:29 +0000 | [diff] [blame] | 307 | EXPORT_SYMBOL(drm_fill_in_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | /** |
| 311 | * Get a secondary minor number. |
| 312 | * |
| 313 | * \param dev device data structure |
| 314 | * \param sec-minor structure to hold the assigned minor |
| 315 | * \return negative number on failure. |
| 316 | * |
Daniel Vetter | cb6458f | 2013-08-08 15:41:34 +0200 | [diff] [blame^] | 317 | * Search an empty entry and initialize it to the given parameters. This |
| 318 | * routines assigns minor numbers to secondary heads of multi-headed cards |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | */ |
Jordan Crouse | dcdb167 | 2010-05-27 13:40:25 -0600 | [diff] [blame] | 320 | 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] | 321 | { |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 322 | struct drm_minor *new_minor; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | int ret; |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 324 | int minor_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | |
| 326 | DRM_DEBUG("\n"); |
| 327 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 328 | minor_id = drm_minor_get_id(dev, type); |
| 329 | if (minor_id < 0) |
| 330 | return minor_id; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 331 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 332 | new_minor = kzalloc(sizeof(struct drm_minor), GFP_KERNEL); |
| 333 | if (!new_minor) { |
| 334 | ret = -ENOMEM; |
| 335 | goto err_idr; |
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 | |
| 338 | new_minor->type = type; |
| 339 | new_minor->device = MKDEV(DRM_MAJOR, minor_id); |
| 340 | new_minor->dev = dev; |
| 341 | new_minor->index = minor_id; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 342 | INIT_LIST_HEAD(&new_minor->master_list); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 343 | |
| 344 | idr_replace(&drm_minors_idr, new_minor, minor_id); |
| 345 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 346 | #if defined(CONFIG_DEBUG_FS) |
| 347 | ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root); |
| 348 | if (ret) { |
GeunSik Lim | 156f5a7 | 2009-06-02 15:01:37 +0900 | [diff] [blame] | 349 | DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n"); |
Daniel Vetter | cb6458f | 2013-08-08 15:41:34 +0200 | [diff] [blame^] | 350 | goto err_mem; |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 351 | } |
| 352 | #endif |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 353 | |
| 354 | ret = drm_sysfs_device_add(new_minor); |
| 355 | if (ret) { |
| 356 | printk(KERN_ERR |
| 357 | "DRM: Error sysfs_device_add.\n"); |
Daniel Vetter | cb6458f | 2013-08-08 15:41:34 +0200 | [diff] [blame^] | 358 | goto err_debugfs; |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 359 | } |
| 360 | *minor = new_minor; |
| 361 | |
| 362 | DRM_DEBUG("new minor assigned %d\n", minor_id); |
| 363 | return 0; |
| 364 | |
| 365 | |
Daniel Vetter | cb6458f | 2013-08-08 15:41:34 +0200 | [diff] [blame^] | 366 | err_debugfs: |
| 367 | #if defined(CONFIG_DEBUG_FS) |
| 368 | drm_debugfs_cleanup(new_minor); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 369 | err_mem: |
Daniel Vetter | cb6458f | 2013-08-08 15:41:34 +0200 | [diff] [blame^] | 370 | #endif |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 371 | kfree(new_minor); |
| 372 | err_idr: |
| 373 | idr_remove(&drm_minors_idr, minor_id); |
| 374 | *minor = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 375 | return ret; |
| 376 | } |
Dave Airlie | 9c1dfc5 | 2012-03-20 06:59:29 +0000 | [diff] [blame] | 377 | EXPORT_SYMBOL(drm_get_minor); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 378 | |
Dave Airlie | c94f702 | 2005-07-07 21:03:38 +1000 | [diff] [blame] | 379 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | * Put a secondary minor number. |
| 381 | * |
| 382 | * \param sec_minor - structure to be released |
| 383 | * \return always zero |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | */ |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 385 | int drm_put_minor(struct drm_minor **minor_p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | { |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 387 | struct drm_minor *minor = *minor_p; |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 388 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 389 | DRM_DEBUG("release secondary minor %d\n", minor->index); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 390 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 391 | #if defined(CONFIG_DEBUG_FS) |
| 392 | drm_debugfs_cleanup(minor); |
| 393 | #endif |
| 394 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 395 | drm_sysfs_device_remove(minor); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 396 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 397 | idr_remove(&drm_minors_idr, minor->index); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 398 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 399 | kfree(minor); |
| 400 | *minor_p = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | return 0; |
| 402 | } |
Dave Airlie | 9c1dfc5 | 2012-03-20 06:59:29 +0000 | [diff] [blame] | 403 | EXPORT_SYMBOL(drm_put_minor); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 404 | |
Dave Airlie | 2c07a21 | 2012-02-20 14:18:07 +0000 | [diff] [blame] | 405 | static void drm_unplug_minor(struct drm_minor *minor) |
| 406 | { |
| 407 | drm_sysfs_device_remove(minor); |
| 408 | } |
| 409 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 410 | /** |
| 411 | * Called via drm_exit() at module unload time or when pci device is |
| 412 | * unplugged. |
| 413 | * |
| 414 | * Cleans up all DRM device, calling drm_lastclose(). |
| 415 | * |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 416 | */ |
| 417 | void drm_put_dev(struct drm_device *dev) |
| 418 | { |
Julia Lawall | ecca068 | 2009-07-11 09:50:09 +0200 | [diff] [blame] | 419 | struct drm_driver *driver; |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 420 | struct drm_map_list *r_list, *list_temp; |
| 421 | |
| 422 | DRM_DEBUG("\n"); |
| 423 | |
| 424 | if (!dev) { |
| 425 | DRM_ERROR("cleanup called no dev\n"); |
| 426 | return; |
| 427 | } |
Julia Lawall | ecca068 | 2009-07-11 09:50:09 +0200 | [diff] [blame] | 428 | driver = dev->driver; |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 429 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 430 | drm_lastclose(dev); |
| 431 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 432 | if (dev->driver->unload) |
| 433 | dev->driver->unload(dev); |
| 434 | |
David Herrmann | 28ec711 | 2013-07-27 16:37:00 +0200 | [diff] [blame] | 435 | if (dev->driver->bus->agp_destroy) |
| 436 | dev->driver->bus->agp_destroy(dev); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 437 | |
Jesse Barnes | b78315f | 2010-03-26 11:07:16 -0700 | [diff] [blame] | 438 | drm_vblank_cleanup(dev); |
| 439 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 440 | list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) |
| 441 | drm_rmmap(dev, r_list->map); |
Ben Skeggs | 30ddbd9 | 2009-03-02 11:13:04 +1000 | [diff] [blame] | 442 | drm_ht_remove(&dev->map_hash); |
| 443 | |
Daniel Vetter | 7c51013 | 2013-08-08 15:41:21 +0200 | [diff] [blame] | 444 | drm_legacy_ctxbitmap_cleanup(dev); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 445 | |
| 446 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
| 447 | drm_put_minor(&dev->control); |
| 448 | |
| 449 | if (driver->driver_features & DRIVER_GEM) |
| 450 | drm_gem_destroy(dev); |
| 451 | |
| 452 | drm_put_minor(&dev->primary); |
| 453 | |
Dave Airlie | a250b9f | 2010-12-15 07:13:55 +1000 | [diff] [blame] | 454 | list_del(&dev->driver_item); |
Sachin Kamat | 66141d3 | 2012-11-19 09:44:59 +0000 | [diff] [blame] | 455 | kfree(dev->devname); |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 456 | kfree(dev); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 457 | } |
| 458 | EXPORT_SYMBOL(drm_put_dev); |
Dave Airlie | 2c07a21 | 2012-02-20 14:18:07 +0000 | [diff] [blame] | 459 | |
| 460 | void drm_unplug_dev(struct drm_device *dev) |
| 461 | { |
| 462 | /* for a USB device */ |
| 463 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
| 464 | drm_unplug_minor(dev->control); |
| 465 | drm_unplug_minor(dev->primary); |
| 466 | |
| 467 | mutex_lock(&drm_global_mutex); |
| 468 | |
| 469 | drm_device_set_unplugged(dev); |
| 470 | |
| 471 | if (dev->open_count == 0) { |
| 472 | drm_put_dev(dev); |
| 473 | } |
| 474 | mutex_unlock(&drm_global_mutex); |
| 475 | } |
| 476 | EXPORT_SYMBOL(drm_unplug_dev); |