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