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 | |
David Herrmann | 1793126 | 2013-08-25 18:29:00 +0200 | [diff] [blame] | 43 | unsigned int drm_rnodes = 0; /* 1 to enable experimental render nodes API */ |
| 44 | EXPORT_SYMBOL(drm_rnodes); |
| 45 | |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 46 | unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */ |
| 47 | EXPORT_SYMBOL(drm_vblank_offdelay); |
| 48 | |
| 49 | unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */ |
| 50 | EXPORT_SYMBOL(drm_timestamp_precision); |
| 51 | |
Imre Deak | c61eef7 | 2012-10-23 18:53:26 +0000 | [diff] [blame] | 52 | /* |
| 53 | * Default to use monotonic timestamps for wait-for-vblank and page-flip |
| 54 | * complete events. |
| 55 | */ |
| 56 | unsigned int drm_timestamp_monotonic = 1; |
| 57 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 58 | MODULE_AUTHOR(CORE_AUTHOR); |
| 59 | MODULE_DESCRIPTION(CORE_DESC); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | MODULE_LICENSE("GPL and additional rights"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | MODULE_PARM_DESC(debug, "Enable debug output"); |
David Herrmann | 1793126 | 2013-08-25 18:29:00 +0200 | [diff] [blame] | 62 | MODULE_PARM_DESC(rnodes, "Enable experimental render nodes API"); |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 63 | MODULE_PARM_DESC(vblankoffdelay, "Delay until vblank irq auto-disable [msecs]"); |
| 64 | MODULE_PARM_DESC(timestamp_precision_usec, "Max. error on timestamps [usecs]"); |
Imre Deak | c61eef7 | 2012-10-23 18:53:26 +0000 | [diff] [blame] | 65 | MODULE_PARM_DESC(timestamp_monotonic, "Use monotonic timestamps"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | |
Dave Jones | c075814 | 2005-10-03 15:02:20 -0400 | [diff] [blame] | 67 | module_param_named(debug, drm_debug, int, 0600); |
David Herrmann | 1793126 | 2013-08-25 18:29:00 +0200 | [diff] [blame] | 68 | module_param_named(rnodes, drm_rnodes, int, 0600); |
Mario Kleiner | 27641c3 | 2010-10-23 04:20:23 +0200 | [diff] [blame] | 69 | module_param_named(vblankoffdelay, drm_vblank_offdelay, int, 0600); |
| 70 | module_param_named(timestamp_precision_usec, drm_timestamp_precision, int, 0600); |
Imre Deak | c61eef7 | 2012-10-23 18:53:26 +0000 | [diff] [blame] | 71 | module_param_named(timestamp_monotonic, drm_timestamp_monotonic, int, 0600); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 73 | struct idr drm_minors_idr; |
| 74 | |
Greg Kroah-Hartman | 0650fd5 | 2006-01-20 14:08:59 -0800 | [diff] [blame] | 75 | struct class *drm_class; |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 76 | struct dentry *drm_debugfs_root; |
Joe Perches | 5ad3d88 | 2011-04-17 20:35:51 -0700 | [diff] [blame] | 77 | |
| 78 | int drm_err(const char *func, const char *format, ...) |
| 79 | { |
| 80 | struct va_format vaf; |
| 81 | va_list args; |
| 82 | int r; |
| 83 | |
| 84 | va_start(args, format); |
| 85 | |
| 86 | vaf.fmt = format; |
| 87 | vaf.va = &args; |
| 88 | |
| 89 | r = printk(KERN_ERR "[" DRM_NAME ":%s] *ERROR* %pV", func, &vaf); |
| 90 | |
| 91 | va_end(args); |
| 92 | |
| 93 | return r; |
| 94 | } |
| 95 | EXPORT_SYMBOL(drm_err); |
| 96 | |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 97 | void drm_ut_debug_printk(unsigned int request_level, |
| 98 | const char *prefix, |
| 99 | const char *function_name, |
| 100 | const char *format, ...) |
| 101 | { |
| 102 | va_list args; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | |
yakui_zhao | 4fefcb2 | 2009-06-02 14:09:47 +0800 | [diff] [blame] | 104 | if (drm_debug & request_level) { |
| 105 | if (function_name) |
| 106 | printk(KERN_DEBUG "[%s:%s], ", prefix, function_name); |
| 107 | va_start(args, format); |
| 108 | vprintk(format, args); |
| 109 | va_end(args); |
| 110 | } |
| 111 | } |
| 112 | EXPORT_SYMBOL(drm_ut_debug_printk); |
Joe Perches | 5ad3d88 | 2011-04-17 20:35:51 -0700 | [diff] [blame] | 113 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 114 | static int drm_minor_get_id(struct drm_device *dev, int type) |
| 115 | { |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 116 | int ret; |
| 117 | int base = 0, limit = 63; |
| 118 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 119 | if (type == DRM_MINOR_CONTROL) { |
Kristian Høgsberg | 24f4003 | 2013-08-08 19:10:21 +0200 | [diff] [blame] | 120 | base += 64; |
| 121 | limit = base + 63; |
| 122 | } else if (type == DRM_MINOR_RENDER) { |
| 123 | base += 128; |
| 124 | limit = base + 63; |
| 125 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 126 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 127 | mutex_lock(&dev->struct_mutex); |
Tejun Heo | 2e92881 | 2013-02-27 17:04:08 -0800 | [diff] [blame] | 128 | ret = idr_alloc(&drm_minors_idr, NULL, base, limit, GFP_KERNEL); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 129 | mutex_unlock(&dev->struct_mutex); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 130 | |
Tejun Heo | 2e92881 | 2013-02-27 17:04:08 -0800 | [diff] [blame] | 131 | return ret == -ENOSPC ? -EINVAL : ret; |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 132 | } |
| 133 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 134 | struct drm_master *drm_master_create(struct drm_minor *minor) |
| 135 | { |
| 136 | struct drm_master *master; |
| 137 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 138 | master = kzalloc(sizeof(*master), GFP_KERNEL); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 139 | if (!master) |
| 140 | return NULL; |
| 141 | |
| 142 | kref_init(&master->refcount); |
| 143 | spin_lock_init(&master->lock.spinlock); |
| 144 | init_waitqueue_head(&master->lock.lock_queue); |
| 145 | drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER); |
| 146 | INIT_LIST_HEAD(&master->magicfree); |
| 147 | master->minor = minor; |
| 148 | |
| 149 | list_add_tail(&master->head, &minor->master_list); |
| 150 | |
| 151 | return master; |
| 152 | } |
| 153 | |
| 154 | struct drm_master *drm_master_get(struct drm_master *master) |
| 155 | { |
| 156 | kref_get(&master->refcount); |
| 157 | return master; |
| 158 | } |
Thomas Hellstrom | 85bb0c3 | 2009-12-06 21:46:28 +0100 | [diff] [blame] | 159 | EXPORT_SYMBOL(drm_master_get); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 160 | |
| 161 | static void drm_master_destroy(struct kref *kref) |
| 162 | { |
| 163 | struct drm_master *master = container_of(kref, struct drm_master, refcount); |
| 164 | struct drm_magic_entry *pt, *next; |
| 165 | struct drm_device *dev = master->minor->dev; |
Dave Airlie | c1ff85d | 2009-01-19 17:17:58 +1000 | [diff] [blame] | 166 | struct drm_map_list *r_list, *list_temp; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 167 | |
| 168 | list_del(&master->head); |
| 169 | |
| 170 | if (dev->driver->master_destroy) |
| 171 | dev->driver->master_destroy(dev, master); |
| 172 | |
Dave Airlie | c1ff85d | 2009-01-19 17:17:58 +1000 | [diff] [blame] | 173 | list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) { |
| 174 | if (r_list->master == master) { |
| 175 | drm_rmmap_locked(dev, r_list->map); |
| 176 | r_list = NULL; |
| 177 | } |
| 178 | } |
| 179 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 180 | if (master->unique) { |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 181 | kfree(master->unique); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 182 | master->unique = NULL; |
| 183 | master->unique_len = 0; |
| 184 | } |
| 185 | |
Chris Wilson | 6e35023 | 2010-07-24 18:29:36 +0100 | [diff] [blame] | 186 | kfree(dev->devname); |
| 187 | dev->devname = NULL; |
| 188 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 189 | list_for_each_entry_safe(pt, next, &master->magicfree, head) { |
| 190 | list_del(&pt->head); |
| 191 | drm_ht_remove_item(&master->magiclist, &pt->hash_item); |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 192 | kfree(pt); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 193 | } |
| 194 | |
| 195 | drm_ht_remove(&master->magiclist); |
| 196 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 197 | kfree(master); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 198 | } |
| 199 | |
| 200 | void drm_master_put(struct drm_master **master) |
| 201 | { |
| 202 | kref_put(&(*master)->refcount, drm_master_destroy); |
| 203 | *master = NULL; |
| 204 | } |
Thomas Hellstrom | 85bb0c3 | 2009-12-06 21:46:28 +0100 | [diff] [blame] | 205 | EXPORT_SYMBOL(drm_master_put); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 206 | |
| 207 | int drm_setmaster_ioctl(struct drm_device *dev, void *data, |
| 208 | struct drm_file *file_priv) |
| 209 | { |
Benjamin Gaignard | 53ef160 | 2013-06-26 17:58:59 +0200 | [diff] [blame] | 210 | int ret = 0; |
Thomas Hellstrom | 862302f | 2009-12-02 18:15:25 +0000 | [diff] [blame] | 211 | |
Jonas Bonn | 6b00842 | 2009-04-16 09:00:02 +0200 | [diff] [blame] | 212 | if (file_priv->is_master) |
| 213 | return 0; |
| 214 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 215 | if (file_priv->minor->master && file_priv->minor->master != file_priv->master) |
| 216 | return -EINVAL; |
| 217 | |
| 218 | if (!file_priv->master) |
| 219 | return -EINVAL; |
| 220 | |
David Herrmann | 08bec5b | 2012-11-15 13:04:37 +0000 | [diff] [blame] | 221 | if (file_priv->minor->master) |
| 222 | return -EINVAL; |
| 223 | |
| 224 | mutex_lock(&dev->struct_mutex); |
| 225 | file_priv->minor->master = drm_master_get(file_priv->master); |
| 226 | file_priv->is_master = 1; |
| 227 | if (dev->driver->master_set) { |
| 228 | ret = dev->driver->master_set(dev, file_priv, false); |
| 229 | if (unlikely(ret != 0)) { |
| 230 | file_priv->is_master = 0; |
| 231 | drm_master_put(&file_priv->minor->master); |
Thomas Hellstrom | 862302f | 2009-12-02 18:15:25 +0000 | [diff] [blame] | 232 | } |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 233 | } |
David Herrmann | 08bec5b | 2012-11-15 13:04:37 +0000 | [diff] [blame] | 234 | mutex_unlock(&dev->struct_mutex); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 235 | |
Benjamin Gaignard | 53ef160 | 2013-06-26 17:58:59 +0200 | [diff] [blame] | 236 | return ret; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 237 | } |
| 238 | |
| 239 | int drm_dropmaster_ioctl(struct drm_device *dev, void *data, |
| 240 | struct drm_file *file_priv) |
| 241 | { |
Jonas Bonn | 6b00842 | 2009-04-16 09:00:02 +0200 | [diff] [blame] | 242 | if (!file_priv->is_master) |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 243 | return -EINVAL; |
Jonas Bonn | 6b00842 | 2009-04-16 09:00:02 +0200 | [diff] [blame] | 244 | |
Dave Airlie | 07f1c7a | 2009-04-20 09:32:50 +1000 | [diff] [blame] | 245 | if (!file_priv->minor->master) |
| 246 | return -EINVAL; |
| 247 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 248 | mutex_lock(&dev->struct_mutex); |
Thomas Hellstrom | 862302f | 2009-12-02 18:15:25 +0000 | [diff] [blame] | 249 | if (dev->driver->master_drop) |
| 250 | dev->driver->master_drop(dev, file_priv, false); |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 251 | drm_master_put(&file_priv->minor->master); |
Jonas Bonn | 6b00842 | 2009-04-16 09:00:02 +0200 | [diff] [blame] | 252 | file_priv->is_master = 0; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 253 | mutex_unlock(&dev->struct_mutex); |
| 254 | return 0; |
| 255 | } |
| 256 | |
Jordan Crouse | dcdb167 | 2010-05-27 13:40:25 -0600 | [diff] [blame] | 257 | int drm_fill_in_dev(struct drm_device *dev, |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 258 | const struct pci_device_id *ent, |
| 259 | struct drm_driver *driver) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | { |
| 261 | int retcode; |
| 262 | |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 263 | if (dev->driver->bus->agp_init) { |
| 264 | retcode = dev->driver->bus->agp_init(dev); |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 265 | if (retcode) { |
David Herrmann | 1bb7253 | 2013-10-02 11:23:34 +0200 | [diff] [blame^] | 266 | drm_lastclose(dev); |
| 267 | return retcode; |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 268 | } |
| 269 | } |
| 270 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | } |
Dave Airlie | 9c1dfc5 | 2012-03-20 06:59:29 +0000 | [diff] [blame] | 273 | EXPORT_SYMBOL(drm_fill_in_dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 274 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | /** |
| 277 | * Get a secondary minor number. |
| 278 | * |
| 279 | * \param dev device data structure |
| 280 | * \param sec-minor structure to hold the assigned minor |
| 281 | * \return negative number on failure. |
| 282 | * |
Daniel Vetter | cb6458f | 2013-08-08 15:41:34 +0200 | [diff] [blame] | 283 | * Search an empty entry and initialize it to the given parameters. This |
| 284 | * routines assigns minor numbers to secondary heads of multi-headed cards |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | */ |
Jordan Crouse | dcdb167 | 2010-05-27 13:40:25 -0600 | [diff] [blame] | 286 | 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] | 287 | { |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 288 | struct drm_minor *new_minor; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | int ret; |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 290 | int minor_id; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | |
| 292 | DRM_DEBUG("\n"); |
| 293 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 294 | minor_id = drm_minor_get_id(dev, type); |
| 295 | if (minor_id < 0) |
| 296 | return minor_id; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 297 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 298 | new_minor = kzalloc(sizeof(struct drm_minor), GFP_KERNEL); |
| 299 | if (!new_minor) { |
| 300 | ret = -ENOMEM; |
| 301 | goto err_idr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | } |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 303 | |
| 304 | new_minor->type = type; |
| 305 | new_minor->device = MKDEV(DRM_MAJOR, minor_id); |
| 306 | new_minor->dev = dev; |
| 307 | new_minor->index = minor_id; |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 308 | INIT_LIST_HEAD(&new_minor->master_list); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 309 | |
| 310 | idr_replace(&drm_minors_idr, new_minor, minor_id); |
| 311 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 312 | #if defined(CONFIG_DEBUG_FS) |
| 313 | ret = drm_debugfs_init(new_minor, minor_id, drm_debugfs_root); |
| 314 | if (ret) { |
GeunSik Lim | 156f5a7 | 2009-06-02 15:01:37 +0900 | [diff] [blame] | 315 | DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n"); |
Daniel Vetter | cb6458f | 2013-08-08 15:41:34 +0200 | [diff] [blame] | 316 | goto err_mem; |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 317 | } |
| 318 | #endif |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 319 | |
| 320 | ret = drm_sysfs_device_add(new_minor); |
| 321 | if (ret) { |
| 322 | printk(KERN_ERR |
| 323 | "DRM: Error sysfs_device_add.\n"); |
Daniel Vetter | cb6458f | 2013-08-08 15:41:34 +0200 | [diff] [blame] | 324 | goto err_debugfs; |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 325 | } |
| 326 | *minor = new_minor; |
| 327 | |
| 328 | DRM_DEBUG("new minor assigned %d\n", minor_id); |
| 329 | return 0; |
| 330 | |
| 331 | |
Daniel Vetter | cb6458f | 2013-08-08 15:41:34 +0200 | [diff] [blame] | 332 | err_debugfs: |
| 333 | #if defined(CONFIG_DEBUG_FS) |
| 334 | drm_debugfs_cleanup(new_minor); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 335 | err_mem: |
Daniel Vetter | cb6458f | 2013-08-08 15:41:34 +0200 | [diff] [blame] | 336 | #endif |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 337 | kfree(new_minor); |
| 338 | err_idr: |
| 339 | idr_remove(&drm_minors_idr, minor_id); |
| 340 | *minor = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | return ret; |
| 342 | } |
Dave Airlie | 9c1dfc5 | 2012-03-20 06:59:29 +0000 | [diff] [blame] | 343 | EXPORT_SYMBOL(drm_get_minor); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 344 | |
Dave Airlie | c94f702 | 2005-07-07 21:03:38 +1000 | [diff] [blame] | 345 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | * Put a secondary minor number. |
| 347 | * |
| 348 | * \param sec_minor - structure to be released |
| 349 | * \return always zero |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | */ |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 351 | int drm_put_minor(struct drm_minor **minor_p) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | { |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 353 | struct drm_minor *minor = *minor_p; |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 354 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 355 | DRM_DEBUG("release secondary minor %d\n", minor->index); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 356 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 357 | #if defined(CONFIG_DEBUG_FS) |
| 358 | drm_debugfs_cleanup(minor); |
| 359 | #endif |
| 360 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 361 | drm_sysfs_device_remove(minor); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 362 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 363 | idr_remove(&drm_minors_idr, minor->index); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 364 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 365 | kfree(minor); |
| 366 | *minor_p = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | return 0; |
| 368 | } |
Dave Airlie | 9c1dfc5 | 2012-03-20 06:59:29 +0000 | [diff] [blame] | 369 | EXPORT_SYMBOL(drm_put_minor); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 370 | |
Dave Airlie | 2c07a21 | 2012-02-20 14:18:07 +0000 | [diff] [blame] | 371 | static void drm_unplug_minor(struct drm_minor *minor) |
| 372 | { |
| 373 | drm_sysfs_device_remove(minor); |
| 374 | } |
| 375 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 376 | /** |
| 377 | * Called via drm_exit() at module unload time or when pci device is |
| 378 | * unplugged. |
| 379 | * |
| 380 | * Cleans up all DRM device, calling drm_lastclose(). |
| 381 | * |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 382 | */ |
| 383 | void drm_put_dev(struct drm_device *dev) |
| 384 | { |
Julia Lawall | ecca068 | 2009-07-11 09:50:09 +0200 | [diff] [blame] | 385 | struct drm_driver *driver; |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 386 | struct drm_map_list *r_list, *list_temp; |
| 387 | |
| 388 | DRM_DEBUG("\n"); |
| 389 | |
| 390 | if (!dev) { |
| 391 | DRM_ERROR("cleanup called no dev\n"); |
| 392 | return; |
| 393 | } |
Julia Lawall | ecca068 | 2009-07-11 09:50:09 +0200 | [diff] [blame] | 394 | driver = dev->driver; |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 395 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 396 | drm_lastclose(dev); |
| 397 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 398 | if (dev->driver->unload) |
| 399 | dev->driver->unload(dev); |
| 400 | |
David Herrmann | 28ec711 | 2013-07-27 16:37:00 +0200 | [diff] [blame] | 401 | if (dev->driver->bus->agp_destroy) |
| 402 | dev->driver->bus->agp_destroy(dev); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 403 | |
Jesse Barnes | b78315f | 2010-03-26 11:07:16 -0700 | [diff] [blame] | 404 | drm_vblank_cleanup(dev); |
| 405 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 406 | list_for_each_entry_safe(r_list, list_temp, &dev->maplist, head) |
| 407 | drm_rmmap(dev, r_list->map); |
Ben Skeggs | 30ddbd9 | 2009-03-02 11:13:04 +1000 | [diff] [blame] | 408 | drm_ht_remove(&dev->map_hash); |
| 409 | |
Dave Airlie | c21eb21 | 2013-09-20 08:32:59 +1000 | [diff] [blame] | 410 | drm_ctxbitmap_cleanup(dev); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 411 | |
| 412 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
| 413 | drm_put_minor(&dev->control); |
| 414 | |
David Herrmann | 1793126 | 2013-08-25 18:29:00 +0200 | [diff] [blame] | 415 | if (dev->render) |
| 416 | drm_put_minor(&dev->render); |
| 417 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 418 | if (driver->driver_features & DRIVER_GEM) |
| 419 | drm_gem_destroy(dev); |
| 420 | |
| 421 | drm_put_minor(&dev->primary); |
| 422 | |
Dave Airlie | a250b9f | 2010-12-15 07:13:55 +1000 | [diff] [blame] | 423 | list_del(&dev->driver_item); |
Sachin Kamat | 66141d3 | 2012-11-19 09:44:59 +0000 | [diff] [blame] | 424 | kfree(dev->devname); |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 425 | kfree(dev); |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 426 | } |
| 427 | EXPORT_SYMBOL(drm_put_dev); |
Dave Airlie | 2c07a21 | 2012-02-20 14:18:07 +0000 | [diff] [blame] | 428 | |
| 429 | void drm_unplug_dev(struct drm_device *dev) |
| 430 | { |
| 431 | /* for a USB device */ |
| 432 | if (drm_core_check_feature(dev, DRIVER_MODESET)) |
| 433 | drm_unplug_minor(dev->control); |
David Herrmann | 1793126 | 2013-08-25 18:29:00 +0200 | [diff] [blame] | 434 | if (dev->render) |
| 435 | drm_unplug_minor(dev->render); |
Dave Airlie | 2c07a21 | 2012-02-20 14:18:07 +0000 | [diff] [blame] | 436 | drm_unplug_minor(dev->primary); |
| 437 | |
| 438 | mutex_lock(&drm_global_mutex); |
| 439 | |
| 440 | drm_device_set_unplugged(dev); |
| 441 | |
| 442 | if (dev->open_count == 0) { |
| 443 | drm_put_dev(dev); |
| 444 | } |
| 445 | mutex_unlock(&drm_global_mutex); |
| 446 | } |
| 447 | EXPORT_SYMBOL(drm_unplug_dev); |
David Herrmann | 1bb7253 | 2013-10-02 11:23:34 +0200 | [diff] [blame^] | 448 | |
| 449 | /** |
| 450 | * drm_dev_alloc - Allocate new drm device |
| 451 | * @driver: DRM driver to allocate device for |
| 452 | * @parent: Parent device object |
| 453 | * |
| 454 | * Allocate and initialize a new DRM device. No device registration is done. |
| 455 | * |
| 456 | * RETURNS: |
| 457 | * Pointer to new DRM device, or NULL if out of memory. |
| 458 | */ |
| 459 | struct drm_device *drm_dev_alloc(struct drm_driver *driver, |
| 460 | struct device *parent) |
| 461 | { |
| 462 | struct drm_device *dev; |
| 463 | int ret; |
| 464 | |
| 465 | dev = kzalloc(sizeof(*dev), GFP_KERNEL); |
| 466 | if (!dev) |
| 467 | return NULL; |
| 468 | |
| 469 | dev->dev = parent; |
| 470 | dev->driver = driver; |
| 471 | |
| 472 | INIT_LIST_HEAD(&dev->filelist); |
| 473 | INIT_LIST_HEAD(&dev->ctxlist); |
| 474 | INIT_LIST_HEAD(&dev->vmalist); |
| 475 | INIT_LIST_HEAD(&dev->maplist); |
| 476 | INIT_LIST_HEAD(&dev->vblank_event_list); |
| 477 | |
| 478 | spin_lock_init(&dev->count_lock); |
| 479 | spin_lock_init(&dev->event_lock); |
| 480 | mutex_init(&dev->struct_mutex); |
| 481 | mutex_init(&dev->ctxlist_mutex); |
| 482 | |
| 483 | /* the DRM has 6 basic counters */ |
| 484 | dev->counters = 6; |
| 485 | dev->types[0] = _DRM_STAT_LOCK; |
| 486 | dev->types[1] = _DRM_STAT_OPENS; |
| 487 | dev->types[2] = _DRM_STAT_CLOSES; |
| 488 | dev->types[3] = _DRM_STAT_IOCTLS; |
| 489 | dev->types[4] = _DRM_STAT_LOCKS; |
| 490 | dev->types[5] = _DRM_STAT_UNLOCKS; |
| 491 | |
| 492 | if (drm_ht_create(&dev->map_hash, 12)) |
| 493 | goto err_free; |
| 494 | |
| 495 | ret = drm_ctxbitmap_init(dev); |
| 496 | if (ret) { |
| 497 | DRM_ERROR("Cannot allocate memory for context bitmap.\n"); |
| 498 | goto err_ht; |
| 499 | } |
| 500 | |
| 501 | if (driver->driver_features & DRIVER_GEM) { |
| 502 | ret = drm_gem_init(dev); |
| 503 | if (ret) { |
| 504 | DRM_ERROR("Cannot initialize graphics execution manager (GEM)\n"); |
| 505 | goto err_ctxbitmap; |
| 506 | } |
| 507 | } |
| 508 | |
| 509 | return dev; |
| 510 | |
| 511 | err_ctxbitmap: |
| 512 | drm_ctxbitmap_cleanup(dev); |
| 513 | err_ht: |
| 514 | drm_ht_remove(&dev->map_hash); |
| 515 | err_free: |
| 516 | kfree(dev); |
| 517 | return NULL; |
| 518 | } |
| 519 | EXPORT_SYMBOL(drm_dev_alloc); |