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_drv.c |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Generic driver template |
| 4 | * |
| 5 | * \author Rickard E. (Rik) Faith <faith@valinux.com> |
| 6 | * \author Gareth Hughes <gareth@valinux.com> |
| 7 | * |
| 8 | * To use this template, you must at least define the following (samples |
| 9 | * given for the MGA driver): |
| 10 | * |
| 11 | * \code |
| 12 | * #define DRIVER_AUTHOR "VA Linux Systems, Inc." |
| 13 | * |
| 14 | * #define DRIVER_NAME "mga" |
| 15 | * #define DRIVER_DESC "Matrox G200/G400" |
| 16 | * #define DRIVER_DATE "20001127" |
| 17 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | * #define drm_x mga_##x |
| 19 | * \endcode |
| 20 | */ |
| 21 | |
| 22 | /* |
| 23 | * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com |
| 24 | * |
| 25 | * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. |
| 26 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. |
| 27 | * All Rights Reserved. |
| 28 | * |
| 29 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 30 | * copy of this software and associated documentation files (the "Software"), |
| 31 | * to deal in the Software without restriction, including without limitation |
| 32 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 33 | * and/or sell copies of the Software, and to permit persons to whom the |
| 34 | * Software is furnished to do so, subject to the following conditions: |
| 35 | * |
| 36 | * The above copyright notice and this permission notice (including the next |
| 37 | * paragraph) shall be included in all copies or substantial portions of the |
| 38 | * Software. |
| 39 | * |
| 40 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 41 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 42 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 43 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 44 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 45 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 46 | * OTHER DEALINGS IN THE SOFTWARE. |
| 47 | */ |
| 48 | |
| 49 | #include "drmP.h" |
| 50 | #include "drm_core.h" |
| 51 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 52 | static int drm_version(struct drm_device *dev, void *data, |
| 53 | struct drm_file *file_priv); |
Dave Airlie | c94f702 | 2005-07-07 21:03:38 +1000 | [diff] [blame] | 54 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | /** Ioctl table */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 56 | static struct drm_ioctl_desc drm_ioctls[] = { |
| 57 | DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0), |
| 58 | DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0), |
| 59 | DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0), |
| 60 | DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY), |
| 61 | DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0), |
| 62 | DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0), |
| 63 | DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0), |
| 64 | DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 66 | DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 67 | DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 68 | DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 69 | DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 71 | DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 72 | DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 74 | DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 75 | DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 77 | DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY), |
| 78 | DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 79 | DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 80 | DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH), |
| 81 | DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 82 | DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 83 | DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 85 | DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 86 | DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 88 | DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH), |
| 89 | DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 91 | DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH), |
| 92 | |
| 93 | DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 94 | DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 95 | DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH), |
| 96 | DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH), |
| 97 | DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 99 | DRM_IOCTL_DEF(DRM_IOCTL_DMA, NULL, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 101 | DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | |
| 103 | #if __OS_HAS_AGP |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 104 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 105 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 106 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 107 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH), |
| 108 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 109 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 110 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 111 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | #endif |
| 113 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 114 | DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 115 | DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 116 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 117 | DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, 0), |
=?utf-8?q?Michel_D=C3=A4nzer?= | bea5679 | 2006-10-24 23:04:19 +1000 | [diff] [blame] | 118 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 119 | DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_drawable_info, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | }; |
| 121 | |
Dave Airlie | 0515b93 | 2007-05-08 15:28:15 +1000 | [diff] [blame] | 122 | #define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls ) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | |
| 124 | /** |
| 125 | * Take down the DRM device. |
| 126 | * |
| 127 | * \param dev DRM device structure. |
| 128 | * |
| 129 | * Frees every resource in \p dev. |
| 130 | * |
Dave Airlie | aff138a | 2005-07-10 16:58:40 +1000 | [diff] [blame] | 131 | * \sa drm_device |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | */ |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 133 | int drm_lastclose(struct drm_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | { |
Dave Airlie | 8fc2fdf | 2007-07-11 16:21:47 +1000 | [diff] [blame] | 135 | struct drm_magic_entry *pt, *next; |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 136 | struct drm_map_list *r_list, *list_t; |
Dave Airlie | 8fc2fdf | 2007-07-11 16:21:47 +1000 | [diff] [blame] | 137 | struct drm_vma_entry *vma, *vma_temp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | int i; |
| 139 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 140 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 142 | if (dev->driver->lastclose) |
| 143 | dev->driver->lastclose(dev); |
| 144 | DRM_DEBUG("driver lastclose completed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | |
| 146 | if (dev->unique) { |
| 147 | drm_free(dev->unique, strlen(dev->unique) + 1, DRM_MEM_DRIVER); |
| 148 | dev->unique = NULL; |
| 149 | dev->unique_len = 0; |
| 150 | } |
| 151 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 152 | if (dev->irq_enabled) |
| 153 | drm_irq_uninstall(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 155 | mutex_lock(&dev->struct_mutex); |
Dave Airlie | d4e2cbe | 2007-07-17 10:55:47 +1000 | [diff] [blame] | 156 | |
| 157 | /* Free drawable information memory */ |
| 158 | drm_drawable_free_all(dev); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 159 | del_timer(&dev->timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 160 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 161 | /* Clear pid list */ |
Thomas Hellstrom | 0a0c721 | 2006-08-16 09:21:56 +1000 | [diff] [blame] | 162 | if (dev->magicfree.next) { |
| 163 | list_for_each_entry_safe(pt, next, &dev->magicfree, head) { |
| 164 | list_del(&pt->head); |
| 165 | drm_ht_remove_item(&dev->magiclist, &pt->hash_item); |
| 166 | drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC); |
| 167 | } |
Thomas Hellstrom | 1f4eccf | 2006-08-18 16:37:10 +1000 | [diff] [blame] | 168 | drm_ht_remove(&dev->magiclist); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | } |
| 170 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 171 | /* Clear AGP information */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | if (drm_core_has_AGP(dev) && dev->agp) { |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 173 | struct drm_agp_mem *entry, *tempe; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 175 | /* Remove AGP resources, but leave dev->agp |
| 176 | intact until drv_cleanup is called. */ |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 177 | list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 178 | if (entry->bound) |
| 179 | drm_unbind_agp(entry->memory); |
| 180 | drm_free_agp(entry->memory, entry->pages); |
| 181 | drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | } |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 183 | INIT_LIST_HEAD(&dev->agp->memory); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | |
Dave Airlie | 7ab9840 | 2005-07-10 16:56:52 +1000 | [diff] [blame] | 185 | if (dev->agp->acquired) |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 186 | drm_agp_release(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | |
| 188 | dev->agp->acquired = 0; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 189 | dev->agp->enabled = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | } |
Dave Airlie | 836cf04 | 2005-07-10 19:27:04 +1000 | [diff] [blame] | 191 | if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg) { |
| 192 | drm_sg_cleanup(dev->sg); |
| 193 | dev->sg = NULL; |
| 194 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 196 | /* Clear vma list (only built for debugging) */ |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 197 | list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) { |
| 198 | list_del(&vma->head); |
| 199 | drm_free(vma, sizeof(*vma), DRM_MEM_VMAS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 200 | } |
| 201 | |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 202 | list_for_each_entry_safe(r_list, list_t, &dev->maplist, head) { |
Dave Airlie | e3236a1 | 2007-12-17 09:41:56 +1000 | [diff] [blame] | 203 | if (!(r_list->map->flags & _DRM_DRIVER)) { |
| 204 | drm_rmmap_locked(dev, r_list->map); |
| 205 | r_list = NULL; |
| 206 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 207 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 209 | if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) { |
| 210 | for (i = 0; i < dev->queue_count; i++) { |
| 211 | if (dev->queuelist[i]) { |
| 212 | drm_free(dev->queuelist[i], |
| 213 | sizeof(*dev->queuelist[0]), |
| 214 | DRM_MEM_QUEUES); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | dev->queuelist[i] = NULL; |
| 216 | } |
| 217 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 218 | drm_free(dev->queuelist, |
| 219 | dev->queue_slots * sizeof(*dev->queuelist), |
| 220 | DRM_MEM_QUEUES); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | dev->queuelist = NULL; |
| 222 | } |
| 223 | dev->queue_count = 0; |
| 224 | |
| 225 | if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 226 | drm_dma_takedown(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 228 | if (dev->lock.hw_lock) { |
| 229 | dev->sigdata.lock = dev->lock.hw_lock = NULL; /* SHM removed */ |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 230 | dev->lock.file_priv = NULL; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 231 | wake_up_interruptible(&dev->lock.lock_queue); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | } |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 233 | mutex_unlock(&dev->struct_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 235 | DRM_DEBUG("lastclose completed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | return 0; |
| 237 | } |
| 238 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | /** |
| 240 | * Module initialization. Called via init_module at module load time, or via |
| 241 | * linux/init/main.c (this is not currently supported). |
| 242 | * |
| 243 | * \return zero on success or a negative number on failure. |
| 244 | * |
| 245 | * Initializes an array of drm_device structures, and attempts to |
| 246 | * initialize all available devices, using consecutive minors, registering the |
| 247 | * stubs and initializing the AGP device. |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 248 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and |
| 250 | * after the initialization for driver customization. |
| 251 | */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 252 | int drm_init(struct drm_driver *driver) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | { |
| 254 | struct pci_dev *pdev = NULL; |
| 255 | struct pci_device_id *pid; |
| 256 | int i; |
| 257 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 258 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 260 | for (i = 0; driver->pci_driver.id_table[i].vendor != 0; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | pid = (struct pci_device_id *)&driver->pci_driver.id_table[i]; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 262 | |
| 263 | pdev = NULL; |
| 264 | /* pass back in pdev to account for multiple identical cards */ |
| 265 | while ((pdev = |
| 266 | pci_get_subsys(pid->vendor, pid->device, pid->subvendor, |
| 267 | pid->subdevice, pdev)) != NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | /* stealth mode requires a manual probe */ |
| 269 | pci_dev_get(pdev); |
| 270 | drm_get_dev(pdev, pid, driver); |
| 271 | } |
| 272 | } |
| 273 | return 0; |
| 274 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 275 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | EXPORT_SYMBOL(drm_init); |
| 277 | |
| 278 | /** |
| 279 | * Called via cleanup_module() at module unload time. |
| 280 | * |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 281 | * Cleans up all DRM device, calling drm_lastclose(). |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 282 | * |
Dave Airlie | aff138a | 2005-07-10 16:58:40 +1000 | [diff] [blame] | 283 | * \sa drm_init |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | */ |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 285 | static void drm_cleanup(struct drm_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 287 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | |
| 289 | if (!dev) { |
| 290 | DRM_ERROR("cleanup called no dev\n"); |
| 291 | return; |
| 292 | } |
| 293 | |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 294 | drm_lastclose(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | if (drm_core_has_MTRR(dev) && drm_core_has_AGP(dev) && |
| 297 | dev->agp && dev->agp->agp_mtrr >= 0) { |
| 298 | int retval; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 299 | retval = mtrr_del(dev->agp->agp_mtrr, |
| 300 | dev->agp->agp_info.aper_base, |
| 301 | dev->agp->agp_info.aper_size * 1024 * 1024); |
| 302 | DRM_DEBUG("mtrr_del=%d\n", retval); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 303 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 304 | |
| 305 | if (drm_core_has_AGP(dev) && dev->agp) { |
| 306 | drm_free(dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 307 | dev->agp = NULL; |
| 308 | } |
| 309 | |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 310 | if (dev->driver->unload) |
| 311 | dev->driver->unload(dev); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 312 | |
Dave Airlie | e3236a1 | 2007-12-17 09:41:56 +1000 | [diff] [blame] | 313 | drm_ht_remove(&dev->map_hash); |
| 314 | drm_ctxbitmap_cleanup(dev); |
| 315 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | drm_put_head(&dev->primary); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 317 | if (drm_put_dev(dev)) |
| 318 | DRM_ERROR("Cannot unload module\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | } |
| 320 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 321 | void drm_exit(struct drm_driver *driver) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | { |
| 323 | int i; |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 324 | struct drm_device *dev = NULL; |
| 325 | struct drm_head *head; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 326 | |
| 327 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | |
| 329 | for (i = 0; i < drm_cards_limit; i++) { |
| 330 | head = drm_heads[i]; |
| 331 | if (!head) |
| 332 | continue; |
| 333 | if (!head->dev) |
| 334 | continue; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 335 | if (head->dev->driver != driver) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | continue; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 337 | dev = head->dev; |
Dave Airlie | aab8df1 | 2006-01-11 22:32:51 +1100 | [diff] [blame] | 338 | if (dev) { |
| 339 | /* release the pci driver */ |
| 340 | if (dev->pdev) |
| 341 | pci_dev_put(dev->pdev); |
| 342 | drm_cleanup(dev); |
| 343 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 345 | DRM_INFO("Module unloaded\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 347 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 348 | EXPORT_SYMBOL(drm_exit); |
| 349 | |
| 350 | /** File operations structure */ |
Arjan van de Ven | 2b8693c | 2007-02-12 00:55:32 -0800 | [diff] [blame] | 351 | static const struct file_operations drm_stub_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | .owner = THIS_MODULE, |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 353 | .open = drm_stub_open |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | }; |
| 355 | |
| 356 | static int __init drm_core_init(void) |
| 357 | { |
| 358 | int ret = -ENOMEM; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 359 | |
| 360 | drm_cards_limit = |
| 361 | (drm_cards_limit < |
| 362 | DRM_MAX_MINOR + 1 ? drm_cards_limit : DRM_MAX_MINOR + 1); |
| 363 | drm_heads = |
| 364 | drm_calloc(drm_cards_limit, sizeof(*drm_heads), DRM_MEM_STUB); |
| 365 | if (!drm_heads) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | goto err_p1; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 367 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | if (register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops)) |
| 369 | goto err_p1; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 370 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | drm_class = drm_sysfs_create(THIS_MODULE, "drm"); |
| 372 | if (IS_ERR(drm_class)) { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 373 | printk(KERN_ERR "DRM: Error creating drm class.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | ret = PTR_ERR(drm_class); |
| 375 | goto err_p2; |
| 376 | } |
| 377 | |
Al Viro | 6660022 | 2005-09-28 22:32:57 +0100 | [diff] [blame] | 378 | drm_proc_root = proc_mkdir("dri", NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | if (!drm_proc_root) { |
| 380 | DRM_ERROR("Cannot create /proc/dri\n"); |
| 381 | ret = -1; |
| 382 | goto err_p3; |
| 383 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 384 | |
Dave Airlie | 3260f9f | 2007-11-22 18:43:46 +1000 | [diff] [blame] | 385 | drm_mem_init(); |
| 386 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 387 | DRM_INFO("Initialized %s %d.%d.%d %s\n", |
| 388 | CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | return 0; |
Jesse Barnes | e8b962b | 2007-11-22 14:02:38 +1000 | [diff] [blame] | 390 | err_p3: |
| 391 | drm_sysfs_destroy(); |
| 392 | err_p2: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 393 | unregister_chrdev(DRM_MAJOR, "drm"); |
| 394 | drm_free(drm_heads, sizeof(*drm_heads) * drm_cards_limit, DRM_MEM_STUB); |
Jesse Barnes | e8b962b | 2007-11-22 14:02:38 +1000 | [diff] [blame] | 395 | err_p1: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | return ret; |
| 397 | } |
| 398 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 399 | static void __exit drm_core_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 400 | { |
| 401 | remove_proc_entry("dri", NULL); |
Jesse Barnes | e8b962b | 2007-11-22 14:02:38 +1000 | [diff] [blame] | 402 | drm_sysfs_destroy(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 403 | |
| 404 | unregister_chrdev(DRM_MAJOR, "drm"); |
| 405 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 406 | drm_free(drm_heads, sizeof(*drm_heads) * drm_cards_limit, DRM_MEM_STUB); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | } |
| 408 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 409 | module_init(drm_core_init); |
| 410 | module_exit(drm_core_exit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | |
| 412 | /** |
| 413 | * Get version information |
| 414 | * |
| 415 | * \param inode device inode. |
| 416 | * \param filp file pointer. |
| 417 | * \param cmd command. |
| 418 | * \param arg user argument, pointing to a drm_version structure. |
| 419 | * \return zero on success or negative number on failure. |
| 420 | * |
| 421 | * Fills in the version information in \p arg. |
| 422 | */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 423 | static int drm_version(struct drm_device *dev, void *data, |
| 424 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 426 | struct drm_version *version = data; |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 427 | int len; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 429 | version->version_major = dev->driver->major; |
| 430 | version->version_minor = dev->driver->minor; |
| 431 | version->version_patchlevel = dev->driver->patchlevel; |
| 432 | DRM_COPY(version->name, dev->driver->name); |
| 433 | DRM_COPY(version->date, dev->driver->date); |
| 434 | DRM_COPY(version->desc, dev->driver->desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 435 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | return 0; |
| 437 | } |
| 438 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 439 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | * Called whenever a process performs an ioctl on /dev/drm. |
| 441 | * |
| 442 | * \param inode device inode. |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 443 | * \param file_priv DRM file private. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | * \param cmd command. |
| 445 | * \param arg user argument. |
| 446 | * \return zero on success or negative number on failure. |
| 447 | * |
| 448 | * Looks up the ioctl function in the ::ioctls table, checking for root |
| 449 | * previleges if so required, and dispatches to the respective function. |
| 450 | */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 451 | int drm_ioctl(struct inode *inode, struct file *filp, |
| 452 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | { |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 454 | struct drm_file *file_priv = filp->private_data; |
| 455 | struct drm_device *dev = file_priv->head->dev; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 456 | struct drm_ioctl_desc *ioctl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | drm_ioctl_t *func; |
| 458 | unsigned int nr = DRM_IOCTL_NR(cmd); |
| 459 | int retcode = -EINVAL; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 460 | char *kdata = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 461 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 462 | atomic_inc(&dev->ioctl_count); |
| 463 | atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 464 | ++file_priv->ioctl_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 466 | DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n", |
Pavel Emelyanov | ba25f9d | 2007-10-18 23:40:40 -0700 | [diff] [blame] | 467 | task_pid_nr(current), cmd, nr, |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 468 | (long)old_encode_dev(file_priv->head->device), |
| 469 | file_priv->authenticated); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 470 | |
Dave Airlie | 0515b93 | 2007-05-08 15:28:15 +1000 | [diff] [blame] | 471 | if ((nr >= DRM_CORE_IOCTL_COUNT) && |
Thomas Hellstrom | 99da6d8 | 2007-03-19 08:52:17 +1100 | [diff] [blame] | 472 | ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END))) |
| 473 | goto err_i1; |
Dave Airlie | 0515b93 | 2007-05-08 15:28:15 +1000 | [diff] [blame] | 474 | if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) && |
| 475 | (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 476 | ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE]; |
Thomas Hellstrom | 99da6d8 | 2007-03-19 08:52:17 +1100 | [diff] [blame] | 477 | else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) |
| 478 | ioctl = &drm_ioctls[nr]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | else |
| 480 | goto err_i1; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 481 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 482 | func = ioctl->func; |
| 483 | /* is there a local override? */ |
| 484 | if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl) |
| 485 | func = dev->driver->dma_ioctl; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 486 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 487 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 488 | if (!func) { |
| 489 | DRM_DEBUG("no function\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 490 | retcode = -EINVAL; |
Dave Airlie | a7a2cc3 | 2006-01-02 13:54:04 +1100 | [diff] [blame] | 491 | } else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) || |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 492 | ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) || |
| 493 | ((ioctl->flags & DRM_MASTER) && !file_priv->master)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 494 | retcode = -EACCES; |
| 495 | } else { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 496 | if (cmd & (IOC_IN | IOC_OUT)) { |
| 497 | kdata = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); |
Dave Airlie | 9d5b3ff | 2008-02-07 14:51:32 +1000 | [diff] [blame] | 498 | if (!kdata) { |
| 499 | retcode = -ENOMEM; |
| 500 | goto err_i1; |
| 501 | } |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 502 | } |
| 503 | |
| 504 | if (cmd & IOC_IN) { |
| 505 | if (copy_from_user(kdata, (void __user *)arg, |
| 506 | _IOC_SIZE(cmd)) != 0) { |
Dave Airlie | 9d5b3ff | 2008-02-07 14:51:32 +1000 | [diff] [blame] | 507 | retcode = -EFAULT; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 508 | goto err_i1; |
| 509 | } |
| 510 | } |
| 511 | retcode = func(dev, kdata, file_priv); |
| 512 | |
Dave Airlie | 9d5b3ff | 2008-02-07 14:51:32 +1000 | [diff] [blame] | 513 | if ((retcode == 0) && (cmd & IOC_OUT)) { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 514 | if (copy_to_user((void __user *)arg, kdata, |
| 515 | _IOC_SIZE(cmd)) != 0) |
Dave Airlie | 9d5b3ff | 2008-02-07 14:51:32 +1000 | [diff] [blame] | 516 | retcode = -EFAULT; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 517 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 518 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 519 | |
| 520 | err_i1: |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 521 | if (kdata) |
| 522 | kfree(kdata); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 523 | atomic_dec(&dev->ioctl_count); |
| 524 | if (retcode) |
| 525 | DRM_DEBUG("ret = %x\n", retcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | return retcode; |
| 527 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 529 | EXPORT_SYMBOL(drm_ioctl); |
Dave Airlie | da509d7 | 2007-05-26 05:04:51 +1000 | [diff] [blame] | 530 | |
| 531 | drm_local_map_t *drm_getsarea(struct drm_device *dev) |
| 532 | { |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 533 | struct drm_map_list *entry; |
Dave Airlie | da509d7 | 2007-05-26 05:04:51 +1000 | [diff] [blame] | 534 | |
Dave Airlie | 6f71010 | 2007-05-28 19:41:35 +1000 | [diff] [blame] | 535 | list_for_each_entry(entry, &dev->maplist, head) { |
Dave Airlie | da509d7 | 2007-05-26 05:04:51 +1000 | [diff] [blame] | 536 | if (entry->map && entry->map->type == _DRM_SHM && |
| 537 | (entry->map->flags & _DRM_CONTAINS_LOCK)) { |
| 538 | return entry->map; |
| 539 | } |
| 540 | } |
| 541 | return NULL; |
| 542 | } |
| 543 | EXPORT_SYMBOL(drm_getsarea); |