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 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 49 | #include <linux/debugfs.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 50 | #include <linux/slab.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | #include "drmP.h" |
| 52 | #include "drm_core.h" |
| 53 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 54 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 55 | static int drm_version(struct drm_device *dev, void *data, |
| 56 | struct drm_file *file_priv); |
Dave Airlie | c94f702 | 2005-07-07 21:03:38 +1000 | [diff] [blame] | 57 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | /** Ioctl table */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 59 | static struct drm_ioctl_desc drm_ioctls[] = { |
| 60 | DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0), |
| 61 | DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0), |
| 62 | DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0), |
| 63 | DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY), |
| 64 | DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0), |
| 65 | DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0), |
| 66 | DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0), |
Jesse Barnes | 453a7d4 | 2009-08-19 15:51:55 +1000 | [diff] [blame] | 67 | DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 69 | DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 70 | DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 71 | DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
Jesse Barnes | 453a7d4 | 2009-08-19 15:51:55 +1000 | [diff] [blame] | 72 | DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER), |
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_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 75 | DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, 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_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 78 | DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 80 | DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY), |
| 81 | DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY), |
| 82 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 83 | DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY), |
| 84 | DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 85 | DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 86 | DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH), |
| 87 | DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 88 | DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 89 | DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, 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_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 92 | 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] | 93 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 94 | DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH), |
| 95 | DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 97 | DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH), |
| 98 | |
| 99 | DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 100 | DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 101 | DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH), |
| 102 | DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH), |
| 103 | DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 105 | DRM_IOCTL_DEF(DRM_IOCTL_DMA, NULL, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 107 | 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] | 108 | |
| 109 | #if __OS_HAS_AGP |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 110 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 111 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 112 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 113 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH), |
| 114 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 115 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 116 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 117 | 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] | 118 | #endif |
| 119 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 120 | DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 121 | 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] | 122 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 123 | 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] | 124 | |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 125 | DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0), |
| 126 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 127 | DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_drawable_info, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 128 | |
Dave Airlie | 9a1420d | 2010-02-03 19:14:35 +1000 | [diff] [blame] | 129 | DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED), |
| 130 | DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED), |
| 131 | DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED), |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 132 | |
Dave Airlie | 9a1420d | 2010-02-03 19:14:35 +1000 | [diff] [blame] | 133 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 134 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 135 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 136 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 137 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER|DRM_UNLOCKED), |
| 138 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED), |
| 139 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 140 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 141 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 142 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 143 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 144 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 145 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 146 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 147 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 148 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 149 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 150 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | }; |
| 152 | |
Dave Airlie | 0515b93 | 2007-05-08 15:28:15 +1000 | [diff] [blame] | 153 | #define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls ) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | |
| 155 | /** |
| 156 | * Take down the DRM device. |
| 157 | * |
| 158 | * \param dev DRM device structure. |
| 159 | * |
| 160 | * Frees every resource in \p dev. |
| 161 | * |
Dave Airlie | aff138a | 2005-07-10 16:58:40 +1000 | [diff] [blame] | 162 | * \sa drm_device |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | */ |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 164 | int drm_lastclose(struct drm_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | { |
Dave Airlie | 8fc2fdf | 2007-07-11 16:21:47 +1000 | [diff] [blame] | 166 | struct drm_vma_entry *vma, *vma_temp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | int i; |
| 168 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 169 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 171 | if (dev->driver->lastclose) |
| 172 | dev->driver->lastclose(dev); |
| 173 | DRM_DEBUG("driver lastclose completed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 174 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 175 | if (dev->irq_enabled && !drm_core_check_feature(dev, DRIVER_MODESET)) |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 176 | drm_irq_uninstall(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 178 | mutex_lock(&dev->struct_mutex); |
Dave Airlie | d4e2cbe | 2007-07-17 10:55:47 +1000 | [diff] [blame] | 179 | |
| 180 | /* Free drawable information memory */ |
| 181 | drm_drawable_free_all(dev); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 182 | del_timer(&dev->timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 184 | /* Clear AGP information */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 185 | if (drm_core_has_AGP(dev) && dev->agp && |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 186 | !drm_core_check_feature(dev, DRIVER_MODESET)) { |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 187 | struct drm_agp_mem *entry, *tempe; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 189 | /* Remove AGP resources, but leave dev->agp |
| 190 | intact until drv_cleanup is called. */ |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 191 | list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 192 | if (entry->bound) |
| 193 | drm_unbind_agp(entry->memory); |
| 194 | drm_free_agp(entry->memory, entry->pages); |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 195 | kfree(entry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | } |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 197 | INIT_LIST_HEAD(&dev->agp->memory); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | |
Dave Airlie | 7ab9840 | 2005-07-10 16:56:52 +1000 | [diff] [blame] | 199 | if (dev->agp->acquired) |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 200 | drm_agp_release(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | |
| 202 | dev->agp->acquired = 0; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 203 | dev->agp->enabled = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 205 | if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg && |
| 206 | !drm_core_check_feature(dev, DRIVER_MODESET)) { |
Dave Airlie | 836cf04 | 2005-07-10 19:27:04 +1000 | [diff] [blame] | 207 | drm_sg_cleanup(dev->sg); |
| 208 | dev->sg = NULL; |
| 209 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 211 | /* Clear vma list (only built for debugging) */ |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 212 | list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) { |
| 213 | list_del(&vma->head); |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 214 | kfree(vma); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | } |
| 216 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 217 | if (drm_core_check_feature(dev, DRIVER_DMA_QUEUE) && dev->queuelist) { |
| 218 | for (i = 0; i < dev->queue_count; i++) { |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 219 | kfree(dev->queuelist[i]); |
| 220 | dev->queuelist[i] = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 221 | } |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 222 | kfree(dev->queuelist); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | dev->queuelist = NULL; |
| 224 | } |
| 225 | dev->queue_count = 0; |
| 226 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 227 | if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && |
| 228 | !drm_core_check_feature(dev, DRIVER_MODESET)) |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 229 | drm_dma_takedown(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | |
Jesse Barnes | a2c0a97 | 2008-11-05 10:31:53 -0800 | [diff] [blame] | 231 | dev->dev_mapping = NULL; |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 232 | mutex_unlock(&dev->struct_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 234 | DRM_DEBUG("lastclose completed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | return 0; |
| 236 | } |
| 237 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | /** |
| 239 | * Module initialization. Called via init_module at module load time, or via |
| 240 | * linux/init/main.c (this is not currently supported). |
| 241 | * |
| 242 | * \return zero on success or a negative number on failure. |
| 243 | * |
| 244 | * Initializes an array of drm_device structures, and attempts to |
| 245 | * initialize all available devices, using consecutive minors, registering the |
| 246 | * stubs and initializing the AGP device. |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 247 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | * Expands the \c DRIVER_PREINIT and \c DRIVER_POST_INIT macros before and |
| 249 | * after the initialization for driver customization. |
| 250 | */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 251 | int drm_init(struct drm_driver *driver) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | { |
| 253 | struct pci_dev *pdev = NULL; |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 254 | const struct pci_device_id *pid; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | int i; |
| 256 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 257 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | |
Dave Airlie | e7f7ab4 | 2008-11-28 13:43:47 +1000 | [diff] [blame] | 259 | INIT_LIST_HEAD(&driver->device_list); |
| 260 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 261 | if (driver->driver_features & DRIVER_MODESET) |
| 262 | return pci_register_driver(&driver->pci_driver); |
| 263 | |
| 264 | /* If not using KMS, fall back to stealth mode manual scanning. */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 265 | for (i = 0; driver->pci_driver.id_table[i].vendor != 0; i++) { |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 266 | pid = &driver->pci_driver.id_table[i]; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 267 | |
Dave Airlie | afa21e0 | 2008-11-11 18:02:12 +1000 | [diff] [blame] | 268 | /* Loop around setting up a DRM device for each PCI device |
| 269 | * matching our ID and device class. If we had the internal |
| 270 | * function that pci_get_subsys and pci_get_class used, we'd |
| 271 | * be able to just pass pid in instead of doing a two-stage |
| 272 | * thing. |
| 273 | */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 274 | pdev = NULL; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 275 | while ((pdev = |
| 276 | pci_get_subsys(pid->vendor, pid->device, pid->subvendor, |
| 277 | pid->subdevice, pdev)) != NULL) { |
Dave Airlie | afa21e0 | 2008-11-11 18:02:12 +1000 | [diff] [blame] | 278 | if ((pdev->class & pid->class_mask) != pid->class) |
| 279 | continue; |
| 280 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | /* stealth mode requires a manual probe */ |
| 282 | pci_dev_get(pdev); |
| 283 | drm_get_dev(pdev, pid, driver); |
| 284 | } |
| 285 | } |
| 286 | return 0; |
| 287 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 288 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | EXPORT_SYMBOL(drm_init); |
| 290 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 291 | void drm_exit(struct drm_driver *driver) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | { |
Dave Airlie | e7f7ab4 | 2008-11-28 13:43:47 +1000 | [diff] [blame] | 293 | struct drm_device *dev, *tmp; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 294 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | |
Kristian Høgsberg | 112b715 | 2009-01-04 16:55:33 -0500 | [diff] [blame] | 296 | if (driver->driver_features & DRIVER_MODESET) { |
| 297 | pci_unregister_driver(&driver->pci_driver); |
| 298 | } else { |
| 299 | list_for_each_entry_safe(dev, tmp, &driver->device_list, driver_item) |
| 300 | drm_put_dev(dev); |
| 301 | } |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 302 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 303 | DRM_INFO("Module unloaded\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 305 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | EXPORT_SYMBOL(drm_exit); |
| 307 | |
| 308 | /** File operations structure */ |
Arjan van de Ven | 2b8693c | 2007-02-12 00:55:32 -0800 | [diff] [blame] | 309 | static const struct file_operations drm_stub_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | .owner = THIS_MODULE, |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 311 | .open = drm_stub_open |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | }; |
| 313 | |
| 314 | static int __init drm_core_init(void) |
| 315 | { |
| 316 | int ret = -ENOMEM; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 317 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 318 | idr_init(&drm_minors_idr); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 319 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | if (register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops)) |
| 321 | goto err_p1; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 322 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 323 | drm_class = drm_sysfs_create(THIS_MODULE, "drm"); |
| 324 | if (IS_ERR(drm_class)) { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 325 | printk(KERN_ERR "DRM: Error creating drm class.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | ret = PTR_ERR(drm_class); |
| 327 | goto err_p2; |
| 328 | } |
| 329 | |
Al Viro | 6660022 | 2005-09-28 22:32:57 +0100 | [diff] [blame] | 330 | drm_proc_root = proc_mkdir("dri", NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | if (!drm_proc_root) { |
| 332 | DRM_ERROR("Cannot create /proc/dri\n"); |
| 333 | ret = -1; |
| 334 | goto err_p3; |
| 335 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 336 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 337 | drm_debugfs_root = debugfs_create_dir("dri", NULL); |
| 338 | if (!drm_debugfs_root) { |
GeunSik Lim | 156f5a7 | 2009-06-02 15:01:37 +0900 | [diff] [blame] | 339 | DRM_ERROR("Cannot create /sys/kernel/debug/dri\n"); |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 340 | ret = -1; |
| 341 | goto err_p3; |
| 342 | } |
| 343 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 344 | DRM_INFO("Initialized %s %d.%d.%d %s\n", |
| 345 | CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | return 0; |
Jesse Barnes | e8b962b | 2007-11-22 14:02:38 +1000 | [diff] [blame] | 347 | err_p3: |
| 348 | drm_sysfs_destroy(); |
| 349 | err_p2: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | unregister_chrdev(DRM_MAJOR, "drm"); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 351 | |
| 352 | idr_destroy(&drm_minors_idr); |
Jesse Barnes | e8b962b | 2007-11-22 14:02:38 +1000 | [diff] [blame] | 353 | err_p1: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | return ret; |
| 355 | } |
| 356 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 357 | static void __exit drm_core_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | { |
| 359 | remove_proc_entry("dri", NULL); |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 360 | debugfs_remove(drm_debugfs_root); |
Jesse Barnes | e8b962b | 2007-11-22 14:02:38 +1000 | [diff] [blame] | 361 | drm_sysfs_destroy(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | |
| 363 | unregister_chrdev(DRM_MAJOR, "drm"); |
| 364 | |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 365 | idr_destroy(&drm_minors_idr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 366 | } |
| 367 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 368 | module_init(drm_core_init); |
| 369 | module_exit(drm_core_exit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | |
| 371 | /** |
Andres Salomon | 156822f | 2009-11-17 14:41:23 -0800 | [diff] [blame] | 372 | * Copy and IOCTL return string to user space |
| 373 | */ |
Andres Salomon | 140a45f | 2009-11-17 14:41:24 -0800 | [diff] [blame] | 374 | static int drm_copy_field(char *buf, size_t *buf_len, const char *value) |
| 375 | { |
| 376 | int len; |
| 377 | |
| 378 | /* don't overflow userbuf */ |
| 379 | len = strlen(value); |
| 380 | if (len > *buf_len) |
| 381 | len = *buf_len; |
| 382 | |
| 383 | /* let userspace know exact length of driver value (which could be |
| 384 | * larger than the userspace-supplied buffer) */ |
| 385 | *buf_len = strlen(value); |
| 386 | |
| 387 | /* finally, try filling in the userbuf */ |
| 388 | if (len && buf) |
| 389 | if (copy_to_user(buf, value, len)) |
| 390 | return -EFAULT; |
| 391 | return 0; |
| 392 | } |
Andres Salomon | 156822f | 2009-11-17 14:41:23 -0800 | [diff] [blame] | 393 | |
| 394 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | * Get version information |
| 396 | * |
| 397 | * \param inode device inode. |
| 398 | * \param filp file pointer. |
| 399 | * \param cmd command. |
| 400 | * \param arg user argument, pointing to a drm_version structure. |
| 401 | * \return zero on success or negative number on failure. |
| 402 | * |
| 403 | * Fills in the version information in \p arg. |
| 404 | */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 405 | static int drm_version(struct drm_device *dev, void *data, |
| 406 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 408 | struct drm_version *version = data; |
Andres Salomon | dad07ca | 2009-11-17 14:41:25 -0800 | [diff] [blame] | 409 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 411 | version->version_major = dev->driver->major; |
| 412 | version->version_minor = dev->driver->minor; |
| 413 | version->version_patchlevel = dev->driver->patchlevel; |
Andres Salomon | dad07ca | 2009-11-17 14:41:25 -0800 | [diff] [blame] | 414 | err = drm_copy_field(version->name, &version->name_len, |
| 415 | dev->driver->name); |
| 416 | if (!err) |
| 417 | err = drm_copy_field(version->date, &version->date_len, |
| 418 | dev->driver->date); |
| 419 | if (!err) |
| 420 | err = drm_copy_field(version->desc, &version->desc_len, |
| 421 | dev->driver->desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 422 | |
Andres Salomon | dad07ca | 2009-11-17 14:41:25 -0800 | [diff] [blame] | 423 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | } |
| 425 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 426 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | * Called whenever a process performs an ioctl on /dev/drm. |
| 428 | * |
| 429 | * \param inode device inode. |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 430 | * \param file_priv DRM file private. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | * \param cmd command. |
| 432 | * \param arg user argument. |
| 433 | * \return zero on success or negative number on failure. |
| 434 | * |
| 435 | * Looks up the ioctl function in the ::ioctls table, checking for root |
| 436 | * previleges if so required, and dispatches to the respective function. |
| 437 | */ |
Arnd Bergmann | ed8b670 | 2009-12-16 22:17:09 +0000 | [diff] [blame] | 438 | long drm_ioctl(struct file *filp, |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 439 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | { |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 441 | struct drm_file *file_priv = filp->private_data; |
Arnd Bergmann | ed8b670 | 2009-12-16 22:17:09 +0000 | [diff] [blame] | 442 | struct drm_device *dev; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 443 | struct drm_ioctl_desc *ioctl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | drm_ioctl_t *func; |
| 445 | unsigned int nr = DRM_IOCTL_NR(cmd); |
| 446 | int retcode = -EINVAL; |
Eric Anholt | 955a23e | 2009-03-19 18:56:14 -0700 | [diff] [blame] | 447 | char stack_kdata[128]; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 448 | char *kdata = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | |
Arnd Bergmann | ed8b670 | 2009-12-16 22:17:09 +0000 | [diff] [blame] | 450 | dev = file_priv->minor->dev; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 451 | atomic_inc(&dev->ioctl_count); |
| 452 | atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 453 | ++file_priv->ioctl_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 455 | 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] | 456 | task_pid_nr(current), cmd, nr, |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 457 | (long)old_encode_dev(file_priv->minor->device), |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 458 | file_priv->authenticated); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 459 | |
Dave Airlie | 0515b93 | 2007-05-08 15:28:15 +1000 | [diff] [blame] | 460 | if ((nr >= DRM_CORE_IOCTL_COUNT) && |
Thomas Hellstrom | 99da6d8 | 2007-03-19 08:52:17 +1100 | [diff] [blame] | 461 | ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END))) |
| 462 | goto err_i1; |
Dave Airlie | 0515b93 | 2007-05-08 15:28:15 +1000 | [diff] [blame] | 463 | if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) && |
| 464 | (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE]; |
Dave Airlie | 858a368 | 2008-06-20 15:42:38 +1000 | [diff] [blame] | 466 | else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) { |
Thomas Hellstrom | 99da6d8 | 2007-03-19 08:52:17 +1100 | [diff] [blame] | 467 | ioctl = &drm_ioctls[nr]; |
Dave Airlie | 858a368 | 2008-06-20 15:42:38 +1000 | [diff] [blame] | 468 | cmd = ioctl->cmd; |
| 469 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | goto err_i1; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 471 | |
Johannes Weiner | 41ee2ff | 2008-06-13 15:04:40 +1000 | [diff] [blame] | 472 | /* Do not trust userspace, use our own definition */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 473 | func = ioctl->func; |
| 474 | /* is there a local override? */ |
| 475 | if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl) |
| 476 | func = dev->driver->dma_ioctl; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 477 | |
| 478 | if (!func) { |
| 479 | DRM_DEBUG("no function\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 480 | retcode = -EINVAL; |
Dave Airlie | a7a2cc3 | 2006-01-02 13:54:04 +1100 | [diff] [blame] | 481 | } else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) || |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 482 | ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) || |
Jonas Bonn | 59738d5 | 2009-04-24 15:05:02 +1000 | [diff] [blame] | 483 | ((ioctl->flags & DRM_MASTER) && !file_priv->is_master) || |
| 484 | (!(ioctl->flags & DRM_CONTROL_ALLOW) && (file_priv->minor->type == DRM_MINOR_CONTROL))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 485 | retcode = -EACCES; |
| 486 | } else { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 487 | if (cmd & (IOC_IN | IOC_OUT)) { |
Eric Anholt | 955a23e | 2009-03-19 18:56:14 -0700 | [diff] [blame] | 488 | if (_IOC_SIZE(cmd) <= sizeof(stack_kdata)) { |
| 489 | kdata = stack_kdata; |
| 490 | } else { |
| 491 | kdata = kmalloc(_IOC_SIZE(cmd), GFP_KERNEL); |
| 492 | if (!kdata) { |
| 493 | retcode = -ENOMEM; |
| 494 | goto err_i1; |
| 495 | } |
Dave Airlie | 9d5b3ff | 2008-02-07 14:51:32 +1000 | [diff] [blame] | 496 | } |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 497 | } |
| 498 | |
| 499 | if (cmd & IOC_IN) { |
| 500 | if (copy_from_user(kdata, (void __user *)arg, |
| 501 | _IOC_SIZE(cmd)) != 0) { |
Dave Airlie | 9d5b3ff | 2008-02-07 14:51:32 +1000 | [diff] [blame] | 502 | retcode = -EFAULT; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 503 | goto err_i1; |
| 504 | } |
| 505 | } |
Arnd Bergmann | ed8b670 | 2009-12-16 22:17:09 +0000 | [diff] [blame] | 506 | if (ioctl->flags & DRM_UNLOCKED) |
| 507 | retcode = func(dev, kdata, file_priv); |
| 508 | else { |
| 509 | lock_kernel(); |
| 510 | retcode = func(dev, kdata, file_priv); |
| 511 | unlock_kernel(); |
| 512 | } |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 513 | |
Michel Dänzer | 9b6fe31 | 2009-05-20 13:32:00 +0200 | [diff] [blame] | 514 | if (cmd & IOC_OUT) { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 515 | if (copy_to_user((void __user *)arg, kdata, |
| 516 | _IOC_SIZE(cmd)) != 0) |
Dave Airlie | 9d5b3ff | 2008-02-07 14:51:32 +1000 | [diff] [blame] | 517 | retcode = -EFAULT; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 518 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 520 | |
| 521 | err_i1: |
Eric Anholt | 955a23e | 2009-03-19 18:56:14 -0700 | [diff] [blame] | 522 | if (kdata != stack_kdata) |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 523 | kfree(kdata); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 524 | atomic_dec(&dev->ioctl_count); |
| 525 | if (retcode) |
| 526 | DRM_DEBUG("ret = %x\n", retcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | return retcode; |
| 528 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 529 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 530 | EXPORT_SYMBOL(drm_ioctl); |
Dave Airlie | da509d7 | 2007-05-26 05:04:51 +1000 | [diff] [blame] | 531 | |
Benjamin Herrenschmidt | f77d390 | 2009-02-02 16:55:46 +1100 | [diff] [blame] | 532 | struct drm_local_map *drm_getsarea(struct drm_device *dev) |
Dave Airlie | da509d7 | 2007-05-26 05:04:51 +1000 | [diff] [blame] | 533 | { |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 534 | struct drm_map_list *entry; |
Dave Airlie | da509d7 | 2007-05-26 05:04:51 +1000 | [diff] [blame] | 535 | |
Dave Airlie | 6f71010 | 2007-05-28 19:41:35 +1000 | [diff] [blame] | 536 | list_for_each_entry(entry, &dev->maplist, head) { |
Dave Airlie | da509d7 | 2007-05-26 05:04:51 +1000 | [diff] [blame] | 537 | if (entry->map && entry->map->type == _DRM_SHM && |
| 538 | (entry->map->flags & _DRM_CONTAINS_LOCK)) { |
| 539 | return entry->map; |
| 540 | } |
| 541 | } |
| 542 | return NULL; |
| 543 | } |
| 544 | EXPORT_SYMBOL(drm_getsarea); |