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> |
Paul Gortmaker | 2d1a8a4 | 2011-08-30 18:16:33 -0400 | [diff] [blame] | 51 | #include <linux/export.h> |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame^] | 52 | #include <drm/drmP.h> |
| 53 | #include <drm/drm_core.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 55 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 56 | static int drm_version(struct drm_device *dev, void *data, |
| 57 | struct drm_file *file_priv); |
Dave Airlie | c94f702 | 2005-07-07 21:03:38 +1000 | [diff] [blame] | 58 | |
Dave Airlie | 1b2f148 | 2010-08-14 20:20:34 +1000 | [diff] [blame] | 59 | #define DRM_IOCTL_DEF(ioctl, _func, _flags) \ |
| 60 | [DRM_IOCTL_NR(ioctl)] = {.cmd = ioctl, .func = _func, .flags = _flags, .cmd_drv = 0} |
| 61 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | /** Ioctl table */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 63 | static struct drm_ioctl_desc drm_ioctls[] = { |
Ilija Hadzic | 53fead9 | 2011-10-25 22:20:12 -0400 | [diff] [blame] | 64 | DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, DRM_UNLOCKED), |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 65 | DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0), |
| 66 | DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0), |
| 67 | DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY), |
Ilija Hadzic | 09b4ea4 | 2011-10-28 17:43:28 -0400 | [diff] [blame] | 68 | DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, DRM_UNLOCKED), |
| 69 | DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, DRM_UNLOCKED), |
| 70 | DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, DRM_UNLOCKED), |
Ilija Hadzic | 53fead9 | 2011-10-25 22:20:12 -0400 | [diff] [blame] | 71 | DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED), |
Jesse Barnes | 453a7d4 | 2009-08-19 15:51:55 +1000 | [diff] [blame] | 72 | DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, 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_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 75 | DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 76 | 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] | 77 | 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] | 78 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 79 | DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 80 | DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 82 | DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 83 | DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | |
Dave Airlie | 7c1c287 | 2008-11-28 14:22:24 +1000 | [diff] [blame] | 85 | DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY), |
| 86 | DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY), |
| 87 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 88 | DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY), |
| 89 | DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 90 | DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 91 | DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH), |
| 92 | DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 93 | DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 94 | DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | |
Daniel Vetter | 8f87919 | 2010-08-23 22:53:31 +0200 | [diff] [blame] | 96 | DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 97 | DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 98 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 99 | DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH), |
| 100 | DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 102 | DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH), |
| 103 | |
| 104 | DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 105 | DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 106 | DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH), |
| 107 | DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH), |
| 108 | DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 110 | DRM_IOCTL_DEF(DRM_IOCTL_DMA, NULL, DRM_AUTH), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 112 | 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] | 113 | |
| 114 | #if __OS_HAS_AGP |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 115 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 116 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 117 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 118 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH), |
| 119 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 120 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 121 | DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 122 | 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] | 123 | #endif |
| 124 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 125 | DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
| 126 | 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] | 127 | |
Ilija Hadzic | 8f4ff2b | 2011-10-31 17:46:18 -0400 | [diff] [blame] | 128 | DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, DRM_UNLOCKED), |
=?utf-8?q?Michel_D=C3=A4nzer?= | bea5679 | 2006-10-24 23:04:19 +1000 | [diff] [blame] | 129 | |
Jesse Barnes | 0a3e67a | 2008-09-30 12:14:26 -0700 | [diff] [blame] | 130 | DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0), |
| 131 | |
Daniel Vetter | 8f87919 | 2010-08-23 22:53:31 +0200 | [diff] [blame] | 132 | DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), |
Eric Anholt | 673a394 | 2008-07-30 12:06:12 -0700 | [diff] [blame] | 133 | |
Dave Airlie | 9a1420d | 2010-02-03 19:14:35 +1000 | [diff] [blame] | 134 | DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED), |
| 135 | DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED), |
| 136 | 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] | 137 | |
Mandeep Singh Baines | a14b1b4 | 2012-01-20 12:11:16 -0800 | [diff] [blame] | 138 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Dave Airlie | 3248877 | 2011-11-25 15:21:02 +0000 | [diff] [blame] | 139 | |
| 140 | DRM_IOCTL_DEF(DRM_IOCTL_PRIME_HANDLE_TO_FD, drm_prime_handle_to_fd_ioctl, DRM_AUTH|DRM_UNLOCKED), |
| 141 | DRM_IOCTL_DEF(DRM_IOCTL_PRIME_FD_TO_HANDLE, drm_prime_fd_to_handle_ioctl, DRM_AUTH|DRM_UNLOCKED), |
| 142 | |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 143 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Mandeep Singh Baines | a14b1b4 | 2012-01-20 12:11:16 -0800 | [diff] [blame] | 144 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Dave Airlie | 9a1420d | 2010-02-03 19:14:35 +1000 | [diff] [blame] | 145 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 146 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANE, drm_mode_getplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 147 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPLANE, drm_mode_setplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Dave Airlie | 9a1420d | 2010-02-03 19:14:35 +1000 | [diff] [blame] | 148 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Mandeep Singh Baines | a14b1b4 | 2012-01-20 12:11:16 -0800 | [diff] [blame] | 149 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_UNLOCKED), |
Dave Airlie | 9a1420d | 2010-02-03 19:14:35 +1000 | [diff] [blame] | 150 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED), |
Mandeep Singh Baines | a14b1b4 | 2012-01-20 12:11:16 -0800 | [diff] [blame] | 151 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 152 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Dave Airlie | 9a1420d | 2010-02-03 19:14:35 +1000 | [diff] [blame] | 153 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 154 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 155 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 156 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 157 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Mandeep Singh Baines | a14b1b4 | 2012-01-20 12:11:16 -0800 | [diff] [blame] | 158 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Dave Airlie | 9a1420d | 2010-02-03 19:14:35 +1000 | [diff] [blame] | 159 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 160 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Dave Airlie | 9a1420d | 2010-02-03 19:14:35 +1000 | [diff] [blame] | 161 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 162 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Dave Airlie | ff72145b | 2011-02-07 12:16:14 +1000 | [diff] [blame] | 163 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 164 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 165 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 166 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 167 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_GETPROPERTIES, drm_mode_obj_get_properties_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
| 168 | DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_SETPROPERTY, drm_mode_obj_set_property_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | }; |
| 170 | |
Dave Airlie | 0515b93 | 2007-05-08 15:28:15 +1000 | [diff] [blame] | 171 | #define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls ) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | |
| 173 | /** |
| 174 | * Take down the DRM device. |
| 175 | * |
| 176 | * \param dev DRM device structure. |
| 177 | * |
| 178 | * Frees every resource in \p dev. |
| 179 | * |
Dave Airlie | aff138a | 2005-07-10 16:58:40 +1000 | [diff] [blame] | 180 | * \sa drm_device |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | */ |
Dave Airlie | 84b1fd1 | 2007-07-11 15:53:27 +1000 | [diff] [blame] | 182 | int drm_lastclose(struct drm_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | { |
Dave Airlie | 8fc2fdf | 2007-07-11 16:21:47 +1000 | [diff] [blame] | 184 | struct drm_vma_entry *vma, *vma_temp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 186 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 188 | if (dev->driver->lastclose) |
| 189 | dev->driver->lastclose(dev); |
| 190 | DRM_DEBUG("driver lastclose completed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 192 | if (dev->irq_enabled && !drm_core_check_feature(dev, DRIVER_MODESET)) |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 193 | drm_irq_uninstall(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 195 | mutex_lock(&dev->struct_mutex); |
Dave Airlie | d4e2cbe | 2007-07-17 10:55:47 +1000 | [diff] [blame] | 196 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 197 | /* Clear AGP information */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 198 | if (drm_core_has_AGP(dev) && dev->agp && |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 199 | !drm_core_check_feature(dev, DRIVER_MODESET)) { |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 200 | struct drm_agp_mem *entry, *tempe; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 202 | /* Remove AGP resources, but leave dev->agp |
| 203 | intact until drv_cleanup is called. */ |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 204 | list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 205 | if (entry->bound) |
| 206 | drm_unbind_agp(entry->memory); |
| 207 | drm_free_agp(entry->memory, entry->pages); |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 208 | kfree(entry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | } |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 210 | INIT_LIST_HEAD(&dev->agp->memory); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | |
Dave Airlie | 7ab9840 | 2005-07-10 16:56:52 +1000 | [diff] [blame] | 212 | if (dev->agp->acquired) |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 213 | drm_agp_release(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | |
| 215 | dev->agp->acquired = 0; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 216 | dev->agp->enabled = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 218 | if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg && |
| 219 | !drm_core_check_feature(dev, DRIVER_MODESET)) { |
Dave Airlie | 836cf04 | 2005-07-10 19:27:04 +1000 | [diff] [blame] | 220 | drm_sg_cleanup(dev->sg); |
| 221 | dev->sg = NULL; |
| 222 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 224 | /* Clear vma list (only built for debugging) */ |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 225 | list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) { |
| 226 | list_del(&vma->head); |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 227 | kfree(vma); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | } |
| 229 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 230 | if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && |
| 231 | !drm_core_check_feature(dev, DRIVER_MODESET)) |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 232 | drm_dma_takedown(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 233 | |
Jesse Barnes | a2c0a97 | 2008-11-05 10:31:53 -0800 | [diff] [blame] | 234 | dev->dev_mapping = NULL; |
Dave Airlie | 30e2fb1 | 2006-02-02 19:37:46 +1100 | [diff] [blame] | 235 | mutex_unlock(&dev->struct_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 237 | DRM_DEBUG("lastclose completed\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | return 0; |
| 239 | } |
| 240 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | /** File operations structure */ |
Arjan van de Ven | 2b8693c | 2007-02-12 00:55:32 -0800 | [diff] [blame] | 242 | static const struct file_operations drm_stub_fops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | .owner = THIS_MODULE, |
Arnd Bergmann | 6038f37 | 2010-08-15 18:52:59 +0200 | [diff] [blame] | 244 | .open = drm_stub_open, |
| 245 | .llseek = noop_llseek, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | }; |
| 247 | |
| 248 | static int __init drm_core_init(void) |
| 249 | { |
| 250 | int ret = -ENOMEM; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 251 | |
Dave Airlie | ba4420c | 2010-03-09 10:56:52 +1000 | [diff] [blame] | 252 | drm_global_init(); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 253 | idr_init(&drm_minors_idr); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 254 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | if (register_chrdev(DRM_MAJOR, "drm", &drm_stub_fops)) |
| 256 | goto err_p1; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 257 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | drm_class = drm_sysfs_create(THIS_MODULE, "drm"); |
| 259 | if (IS_ERR(drm_class)) { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 260 | printk(KERN_ERR "DRM: Error creating drm class.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | ret = PTR_ERR(drm_class); |
| 262 | goto err_p2; |
| 263 | } |
| 264 | |
Al Viro | 6660022 | 2005-09-28 22:32:57 +0100 | [diff] [blame] | 265 | drm_proc_root = proc_mkdir("dri", NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | if (!drm_proc_root) { |
| 267 | DRM_ERROR("Cannot create /proc/dri\n"); |
| 268 | ret = -1; |
| 269 | goto err_p3; |
| 270 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 271 | |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 272 | drm_debugfs_root = debugfs_create_dir("dri", NULL); |
| 273 | if (!drm_debugfs_root) { |
GeunSik Lim | 156f5a7 | 2009-06-02 15:01:37 +0900 | [diff] [blame] | 274 | DRM_ERROR("Cannot create /sys/kernel/debug/dri\n"); |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 275 | ret = -1; |
| 276 | goto err_p3; |
| 277 | } |
| 278 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 279 | DRM_INFO("Initialized %s %d.%d.%d %s\n", |
| 280 | CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 281 | return 0; |
Jesse Barnes | e8b962b | 2007-11-22 14:02:38 +1000 | [diff] [blame] | 282 | err_p3: |
| 283 | drm_sysfs_destroy(); |
| 284 | err_p2: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | unregister_chrdev(DRM_MAJOR, "drm"); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 286 | |
| 287 | idr_destroy(&drm_minors_idr); |
Jesse Barnes | e8b962b | 2007-11-22 14:02:38 +1000 | [diff] [blame] | 288 | err_p1: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | return ret; |
| 290 | } |
| 291 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 292 | static void __exit drm_core_exit(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | { |
| 294 | remove_proc_entry("dri", NULL); |
Ben Gamari | 955b12d | 2009-02-17 20:08:49 -0500 | [diff] [blame] | 295 | debugfs_remove(drm_debugfs_root); |
Jesse Barnes | e8b962b | 2007-11-22 14:02:38 +1000 | [diff] [blame] | 296 | drm_sysfs_destroy(); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | |
| 298 | unregister_chrdev(DRM_MAJOR, "drm"); |
| 299 | |
Chris Wilson | ddd3d06 | 2010-07-24 22:28:25 +0100 | [diff] [blame] | 300 | idr_remove_all(&drm_minors_idr); |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 301 | idr_destroy(&drm_minors_idr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | } |
| 303 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 304 | module_init(drm_core_init); |
| 305 | module_exit(drm_core_exit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | |
| 307 | /** |
Andres Salomon | 156822f | 2009-11-17 14:41:23 -0800 | [diff] [blame] | 308 | * Copy and IOCTL return string to user space |
| 309 | */ |
Andres Salomon | 140a45f | 2009-11-17 14:41:24 -0800 | [diff] [blame] | 310 | static int drm_copy_field(char *buf, size_t *buf_len, const char *value) |
| 311 | { |
| 312 | int len; |
| 313 | |
| 314 | /* don't overflow userbuf */ |
| 315 | len = strlen(value); |
| 316 | if (len > *buf_len) |
| 317 | len = *buf_len; |
| 318 | |
| 319 | /* let userspace know exact length of driver value (which could be |
| 320 | * larger than the userspace-supplied buffer) */ |
| 321 | *buf_len = strlen(value); |
| 322 | |
| 323 | /* finally, try filling in the userbuf */ |
| 324 | if (len && buf) |
| 325 | if (copy_to_user(buf, value, len)) |
| 326 | return -EFAULT; |
| 327 | return 0; |
| 328 | } |
Andres Salomon | 156822f | 2009-11-17 14:41:23 -0800 | [diff] [blame] | 329 | |
| 330 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | * Get version information |
| 332 | * |
| 333 | * \param inode device inode. |
| 334 | * \param filp file pointer. |
| 335 | * \param cmd command. |
| 336 | * \param arg user argument, pointing to a drm_version structure. |
| 337 | * \return zero on success or negative number on failure. |
| 338 | * |
| 339 | * Fills in the version information in \p arg. |
| 340 | */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 341 | static int drm_version(struct drm_device *dev, void *data, |
| 342 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 343 | { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 344 | struct drm_version *version = data; |
Andres Salomon | dad07ca | 2009-11-17 14:41:25 -0800 | [diff] [blame] | 345 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 347 | version->version_major = dev->driver->major; |
| 348 | version->version_minor = dev->driver->minor; |
| 349 | version->version_patchlevel = dev->driver->patchlevel; |
Andres Salomon | dad07ca | 2009-11-17 14:41:25 -0800 | [diff] [blame] | 350 | err = drm_copy_field(version->name, &version->name_len, |
| 351 | dev->driver->name); |
| 352 | if (!err) |
| 353 | err = drm_copy_field(version->date, &version->date_len, |
| 354 | dev->driver->date); |
| 355 | if (!err) |
| 356 | err = drm_copy_field(version->desc, &version->desc_len, |
| 357 | dev->driver->desc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | |
Andres Salomon | dad07ca | 2009-11-17 14:41:25 -0800 | [diff] [blame] | 359 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 360 | } |
| 361 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 362 | /** |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | * Called whenever a process performs an ioctl on /dev/drm. |
| 364 | * |
| 365 | * \param inode device inode. |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 366 | * \param file_priv DRM file private. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | * \param cmd command. |
| 368 | * \param arg user argument. |
| 369 | * \return zero on success or negative number on failure. |
| 370 | * |
| 371 | * Looks up the ioctl function in the ::ioctls table, checking for root |
| 372 | * previleges if so required, and dispatches to the respective function. |
| 373 | */ |
Arnd Bergmann | ed8b670 | 2009-12-16 22:17:09 +0000 | [diff] [blame] | 374 | long drm_ioctl(struct file *filp, |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 375 | unsigned int cmd, unsigned long arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | { |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 377 | struct drm_file *file_priv = filp->private_data; |
Arnd Bergmann | ed8b670 | 2009-12-16 22:17:09 +0000 | [diff] [blame] | 378 | struct drm_device *dev; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 379 | struct drm_ioctl_desc *ioctl; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | drm_ioctl_t *func; |
| 381 | unsigned int nr = DRM_IOCTL_NR(cmd); |
| 382 | int retcode = -EINVAL; |
Eric Anholt | 955a23e | 2009-03-19 18:56:14 -0700 | [diff] [blame] | 383 | char stack_kdata[128]; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 384 | char *kdata = NULL; |
Dave Airlie | 1b2f148 | 2010-08-14 20:20:34 +1000 | [diff] [blame] | 385 | unsigned int usize, asize; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 386 | |
Arnd Bergmann | ed8b670 | 2009-12-16 22:17:09 +0000 | [diff] [blame] | 387 | dev = file_priv->minor->dev; |
Dave Airlie | 2c07a21 | 2012-02-20 14:18:07 +0000 | [diff] [blame] | 388 | |
| 389 | if (drm_device_is_unplugged(dev)) |
| 390 | return -ENODEV; |
| 391 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 392 | atomic_inc(&dev->ioctl_count); |
| 393 | atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 394 | ++file_priv->ioctl_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 395 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 396 | 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] | 397 | task_pid_nr(current), cmd, nr, |
Dave Airlie | 2c14f28 | 2008-04-21 16:47:32 +1000 | [diff] [blame] | 398 | (long)old_encode_dev(file_priv->minor->device), |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 399 | file_priv->authenticated); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 400 | |
Dave Airlie | 0515b93 | 2007-05-08 15:28:15 +1000 | [diff] [blame] | 401 | if ((nr >= DRM_CORE_IOCTL_COUNT) && |
Thomas Hellstrom | 99da6d8 | 2007-03-19 08:52:17 +1100 | [diff] [blame] | 402 | ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END))) |
| 403 | goto err_i1; |
Dave Airlie | 0515b93 | 2007-05-08 15:28:15 +1000 | [diff] [blame] | 404 | if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) && |
Dave Airlie | 1b2f148 | 2010-08-14 20:20:34 +1000 | [diff] [blame] | 405 | (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) { |
| 406 | u32 drv_size; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE]; |
Dave Airlie | 1b2f148 | 2010-08-14 20:20:34 +1000 | [diff] [blame] | 408 | drv_size = _IOC_SIZE(ioctl->cmd_drv); |
| 409 | usize = asize = _IOC_SIZE(cmd); |
| 410 | if (drv_size > asize) |
| 411 | asize = drv_size; |
| 412 | } |
Dave Airlie | 858a368 | 2008-06-20 15:42:38 +1000 | [diff] [blame] | 413 | else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) { |
Thomas Hellstrom | 99da6d8 | 2007-03-19 08:52:17 +1100 | [diff] [blame] | 414 | ioctl = &drm_ioctls[nr]; |
Dave Airlie | 858a368 | 2008-06-20 15:42:38 +1000 | [diff] [blame] | 415 | cmd = ioctl->cmd; |
Dave Airlie | 1b2f148 | 2010-08-14 20:20:34 +1000 | [diff] [blame] | 416 | usize = asize = _IOC_SIZE(cmd); |
Dave Airlie | 858a368 | 2008-06-20 15:42:38 +1000 | [diff] [blame] | 417 | } else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | goto err_i1; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 419 | |
Johannes Weiner | 41ee2ff | 2008-06-13 15:04:40 +1000 | [diff] [blame] | 420 | /* Do not trust userspace, use our own definition */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 421 | func = ioctl->func; |
| 422 | /* is there a local override? */ |
| 423 | if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl) |
| 424 | func = dev->driver->dma_ioctl; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 425 | |
| 426 | if (!func) { |
| 427 | DRM_DEBUG("no function\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 428 | retcode = -EINVAL; |
Dave Airlie | a7a2cc3 | 2006-01-02 13:54:04 +1100 | [diff] [blame] | 429 | } else if (((ioctl->flags & DRM_ROOT_ONLY) && !capable(CAP_SYS_ADMIN)) || |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 430 | ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) || |
Jonas Bonn | 59738d5 | 2009-04-24 15:05:02 +1000 | [diff] [blame] | 431 | ((ioctl->flags & DRM_MASTER) && !file_priv->is_master) || |
| 432 | (!(ioctl->flags & DRM_CONTROL_ALLOW) && (file_priv->minor->type == DRM_MINOR_CONTROL))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | retcode = -EACCES; |
| 434 | } else { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 435 | if (cmd & (IOC_IN | IOC_OUT)) { |
Dave Airlie | 1b2f148 | 2010-08-14 20:20:34 +1000 | [diff] [blame] | 436 | if (asize <= sizeof(stack_kdata)) { |
Eric Anholt | 955a23e | 2009-03-19 18:56:14 -0700 | [diff] [blame] | 437 | kdata = stack_kdata; |
| 438 | } else { |
Dave Airlie | 1b2f148 | 2010-08-14 20:20:34 +1000 | [diff] [blame] | 439 | kdata = kmalloc(asize, GFP_KERNEL); |
Eric Anholt | 955a23e | 2009-03-19 18:56:14 -0700 | [diff] [blame] | 440 | if (!kdata) { |
| 441 | retcode = -ENOMEM; |
| 442 | goto err_i1; |
| 443 | } |
Dave Airlie | 9d5b3ff | 2008-02-07 14:51:32 +1000 | [diff] [blame] | 444 | } |
Rob Clark | dd2351d | 2011-09-18 14:38:15 -0500 | [diff] [blame] | 445 | if (asize > usize) |
| 446 | memset(kdata + usize, 0, asize - usize); |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 447 | } |
| 448 | |
| 449 | if (cmd & IOC_IN) { |
| 450 | if (copy_from_user(kdata, (void __user *)arg, |
Dave Airlie | 1b2f148 | 2010-08-14 20:20:34 +1000 | [diff] [blame] | 451 | usize) != 0) { |
Dave Airlie | 9d5b3ff | 2008-02-07 14:51:32 +1000 | [diff] [blame] | 452 | retcode = -EFAULT; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 453 | goto err_i1; |
| 454 | } |
Dave Airlie | b9f0aee | 2010-08-17 14:46:00 +1000 | [diff] [blame] | 455 | } else |
Dave Airlie | 1b2f148 | 2010-08-14 20:20:34 +1000 | [diff] [blame] | 456 | memset(kdata, 0, usize); |
Dave Airlie | b9f0aee | 2010-08-17 14:46:00 +1000 | [diff] [blame] | 457 | |
Arnd Bergmann | ed8b670 | 2009-12-16 22:17:09 +0000 | [diff] [blame] | 458 | if (ioctl->flags & DRM_UNLOCKED) |
| 459 | retcode = func(dev, kdata, file_priv); |
| 460 | else { |
Arnd Bergmann | 5837471 | 2010-07-10 23:51:39 +0200 | [diff] [blame] | 461 | mutex_lock(&drm_global_mutex); |
Arnd Bergmann | ed8b670 | 2009-12-16 22:17:09 +0000 | [diff] [blame] | 462 | retcode = func(dev, kdata, file_priv); |
Arnd Bergmann | 5837471 | 2010-07-10 23:51:39 +0200 | [diff] [blame] | 463 | mutex_unlock(&drm_global_mutex); |
Arnd Bergmann | ed8b670 | 2009-12-16 22:17:09 +0000 | [diff] [blame] | 464 | } |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 465 | |
Michel Dänzer | 9b6fe31 | 2009-05-20 13:32:00 +0200 | [diff] [blame] | 466 | if (cmd & IOC_OUT) { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 467 | if (copy_to_user((void __user *)arg, kdata, |
Dave Airlie | 1b2f148 | 2010-08-14 20:20:34 +1000 | [diff] [blame] | 468 | usize) != 0) |
Dave Airlie | 9d5b3ff | 2008-02-07 14:51:32 +1000 | [diff] [blame] | 469 | retcode = -EFAULT; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 470 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 471 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 472 | |
| 473 | err_i1: |
Eric Anholt | 955a23e | 2009-03-19 18:56:14 -0700 | [diff] [blame] | 474 | if (kdata != stack_kdata) |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 475 | kfree(kdata); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 476 | atomic_dec(&dev->ioctl_count); |
| 477 | if (retcode) |
Yuanhan Liu | 4ef7fe7 | 2012-06-16 22:25:24 +0800 | [diff] [blame] | 478 | DRM_DEBUG("ret = %d\n", retcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | return retcode; |
| 480 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 481 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 482 | EXPORT_SYMBOL(drm_ioctl); |
Dave Airlie | da509d7 | 2007-05-26 05:04:51 +1000 | [diff] [blame] | 483 | |
Benjamin Herrenschmidt | f77d390 | 2009-02-02 16:55:46 +1100 | [diff] [blame] | 484 | struct drm_local_map *drm_getsarea(struct drm_device *dev) |
Dave Airlie | da509d7 | 2007-05-26 05:04:51 +1000 | [diff] [blame] | 485 | { |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 486 | struct drm_map_list *entry; |
Dave Airlie | da509d7 | 2007-05-26 05:04:51 +1000 | [diff] [blame] | 487 | |
Dave Airlie | 6f71010 | 2007-05-28 19:41:35 +1000 | [diff] [blame] | 488 | list_for_each_entry(entry, &dev->maplist, head) { |
Dave Airlie | da509d7 | 2007-05-26 05:04:51 +1000 | [diff] [blame] | 489 | if (entry->map && entry->map->type == _DRM_SHM && |
| 490 | (entry->map->flags & _DRM_CONTAINS_LOCK)) { |
| 491 | return entry->map; |
| 492 | } |
| 493 | } |
| 494 | return NULL; |
| 495 | } |
| 496 | EXPORT_SYMBOL(drm_getsarea); |