1280183Sdumbbell/** 2280183Sdumbbell * \file drm_drv.c 3280183Sdumbbell * Generic driver template 4280183Sdumbbell * 5280183Sdumbbell * \author Rickard E. (Rik) Faith <faith@valinux.com> 6280183Sdumbbell * \author Gareth Hughes <gareth@valinux.com> 7280183Sdumbbell * 8280183Sdumbbell * To use this template, you must at least define the following (samples 9280183Sdumbbell * given for the MGA driver): 10280183Sdumbbell * 11280183Sdumbbell * \code 12280183Sdumbbell * #define DRIVER_AUTHOR "VA Linux Systems, Inc." 13280183Sdumbbell * 14280183Sdumbbell * #define DRIVER_NAME "mga" 15280183Sdumbbell * #define DRIVER_DESC "Matrox G200/G400" 16280183Sdumbbell * #define DRIVER_DATE "20001127" 17280183Sdumbbell * 18280183Sdumbbell * #define drm_x mga_##x 19280183Sdumbbell * \endcode 20280183Sdumbbell */ 21280183Sdumbbell 22280183Sdumbbell/* 23280183Sdumbbell * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com 24280183Sdumbbell * 25235783Skib * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. 26235783Skib * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 27235783Skib * All Rights Reserved. 28235783Skib * 29235783Skib * Permission is hereby granted, free of charge, to any person obtaining a 30235783Skib * copy of this software and associated documentation files (the "Software"), 31235783Skib * to deal in the Software without restriction, including without limitation 32235783Skib * the rights to use, copy, modify, merge, publish, distribute, sublicense, 33235783Skib * and/or sell copies of the Software, and to permit persons to whom the 34235783Skib * Software is furnished to do so, subject to the following conditions: 35235783Skib * 36235783Skib * The above copyright notice and this permission notice (including the next 37235783Skib * paragraph) shall be included in all copies or substantial portions of the 38235783Skib * Software. 39235783Skib * 40235783Skib * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 41235783Skib * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 42235783Skib * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 43235783Skib * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 44235783Skib * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 45235783Skib * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 46235783Skib * OTHER DEALINGS IN THE SOFTWARE. 47235783Skib */ 48235783Skib 49235783Skib#include <sys/cdefs.h> 50235783Skib__FBSDID("$FreeBSD: releng/11.0/sys/dev/drm2/drm_drv.c 296674 2016-03-11 18:59:15Z dumbbell $"); 51235783Skib 52280183Sdumbbell#include <sys/sysent.h> 53235783Skib 54235783Skib#include <dev/drm2/drmP.h> 55254792Sdumbbell#include <dev/drm2/drm_core.h> 56254792Sdumbbell#include <dev/drm2/drm_global.h> 57235783Skib 58280183Sdumbbellstruct sx drm_global_mutex; 59235783Skib 60280183Sdumbbell/** Ioctl table */ 61280183Sdumbbellstatic struct drm_ioctl_desc drm_ioctls[] = { 62280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, DRM_UNLOCKED), 63235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0), 64235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0), 65235783Skib DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY), 66280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, DRM_UNLOCKED), 67280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, DRM_UNLOCKED), 68280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, DRM_UNLOCKED), 69235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED), 70280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER), 71235783Skib 72235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 73235783Skib DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 74235783Skib DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 75280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER), 76235783Skib 77235783Skib DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 78235783Skib DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH), 79235783Skib 80235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 81235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH), 82235783Skib 83235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY), 84235783Skib DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY), 85235783Skib 86235783Skib DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY), 87235783Skib DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 88235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 89235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH), 90235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 91235783Skib DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 92235783Skib DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH), 93235783Skib 94280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 95280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 96235783Skib 97235783Skib DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH), 98235783Skib DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH), 99235783Skib 100235783Skib DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH), 101235783Skib 102235783Skib DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 103235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 104235783Skib DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH), 105235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH), 106235783Skib DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH), 107280183Sdumbbell /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */ 108280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_DMA, NULL, DRM_AUTH), 109235783Skib 110235783Skib DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 111235783Skib 112280183Sdumbbell#if __OS_HAS_AGP 113235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 114235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 115235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 116235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH), 117235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 118235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 119235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 120235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 121280183Sdumbbell#endif 122235783Skib 123235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 124235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 125280183Sdumbbell 126235783Skib DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, DRM_UNLOCKED), 127280183Sdumbbell 128235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0), 129235783Skib 130280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 131280183Sdumbbell 132235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED), 133235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED), 134235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED), 135235783Skib 136280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 137280183Sdumbbell 138280183Sdumbbell#ifdef FREEBSD_NOTYET 139280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_PRIME_HANDLE_TO_FD, drm_prime_handle_to_fd_ioctl, DRM_AUTH|DRM_UNLOCKED), 140280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_PRIME_FD_TO_HANDLE, drm_prime_fd_to_handle_ioctl, DRM_AUTH|DRM_UNLOCKED), 141280183Sdumbbell#endif /* FREEBSD_NOTYET */ 142280183Sdumbbell 143280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 144280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 145235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 146280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANE, drm_mode_getplane, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 147235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPLANE, drm_mode_setplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 148235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 149280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_UNLOCKED), 150235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED), 151280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 152280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 153235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 154235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 155280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 156235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 157280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 158280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 159280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 160280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 161280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 162235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 163235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 164280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 165280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 166280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 167280183Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_GETPROPERTIES, drm_mode_obj_get_properties_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 168277487Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_SETPROPERTY, drm_mode_obj_set_property_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 169235783Skib}; 170235783Skib 171280183Sdumbbell#ifdef COMPAT_FREEBSD32 172280183Sdumbbellextern struct drm_ioctl_desc drm_compat_ioctls[]; 173280183Sdumbbell#endif 174235783Skib 175280183Sdumbbell#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls ) 176235783Skib 177280183Sdumbbell/** 178280183Sdumbbell * Take down the DRM device. 179280183Sdumbbell * 180280183Sdumbbell * \param dev DRM device structure. 181280183Sdumbbell * 182280183Sdumbbell * Frees every resource in \p dev. 183280183Sdumbbell * 184280183Sdumbbell * \sa drm_device 185280183Sdumbbell */ 186280183Sdumbbellint drm_lastclose(struct drm_device * dev) 187235783Skib{ 188280183Sdumbbell#ifdef __linux__ 189280183Sdumbbell struct drm_vma_entry *vma, *vma_temp; 190235783Skib#endif 191235783Skib 192235783Skib DRM_DEBUG("\n"); 193235783Skib 194280183Sdumbbell if (dev->driver->lastclose) 195235783Skib dev->driver->lastclose(dev); 196280183Sdumbbell DRM_DEBUG("driver lastclose completed\n"); 197235783Skib 198280183Sdumbbell if (dev->irq_enabled && !drm_core_check_feature(dev, DRIVER_MODESET)) 199235783Skib drm_irq_uninstall(dev); 200235783Skib 201235783Skib DRM_LOCK(dev); 202235783Skib 203235783Skib /* Clear AGP information */ 204280183Sdumbbell if (drm_core_has_AGP(dev) && dev->agp && 205280183Sdumbbell !drm_core_check_feature(dev, DRIVER_MODESET)) { 206280183Sdumbbell struct drm_agp_mem *entry, *tempe; 207235783Skib 208280183Sdumbbell /* Remove AGP resources, but leave dev->agp 209280183Sdumbbell intact until drv_cleanup is called. */ 210280183Sdumbbell list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) { 211235783Skib if (entry->bound) 212280183Sdumbbell drm_unbind_agp(entry->memory); 213280183Sdumbbell drm_free_agp(entry->memory, entry->pages); 214235783Skib free(entry, DRM_MEM_AGPLISTS); 215235783Skib } 216280183Sdumbbell INIT_LIST_HEAD(&dev->agp->memory); 217235783Skib 218235783Skib if (dev->agp->acquired) 219235783Skib drm_agp_release(dev); 220235783Skib 221235783Skib dev->agp->acquired = 0; 222280183Sdumbbell dev->agp->enabled = 0; 223235783Skib } 224280183Sdumbbell if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg && 225280183Sdumbbell !drm_core_check_feature(dev, DRIVER_MODESET)) { 226235783Skib drm_sg_cleanup(dev->sg); 227235783Skib dev->sg = NULL; 228235783Skib } 229235783Skib 230280183Sdumbbell#ifdef __linux__ 231280183Sdumbbell /* Clear vma list (only built for debugging) */ 232280183Sdumbbell list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) { 233280183Sdumbbell list_del(&vma->head); 234280183Sdumbbell kfree(vma); 235235783Skib } 236280183Sdumbbell#endif 237235783Skib 238280183Sdumbbell if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && 239280183Sdumbbell !drm_core_check_feature(dev, DRIVER_MODESET)) 240280183Sdumbbell drm_dma_takedown(dev); 241235783Skib 242280183Sdumbbell DRM_UNLOCK(dev); 243280183Sdumbbell 244280183Sdumbbell DRM_DEBUG("lastclose completed\n"); 245235783Skib return 0; 246235783Skib} 247235783Skib 248280183Sdumbbell#ifdef __linux__ 249280183Sdumbbell/** File operations structure */ 250280183Sdumbbellstatic const struct file_operations drm_stub_fops = { 251280183Sdumbbell .owner = THIS_MODULE, 252280183Sdumbbell .open = drm_stub_open, 253280183Sdumbbell .llseek = noop_llseek, 254280183Sdumbbell}; 255280183Sdumbbell#endif 256280183Sdumbbell 257280183Sdumbbellstatic int __init drm_core_init(void) 258235783Skib{ 259235783Skib 260280183Sdumbbell sx_init(&drm_global_mutex, "drm_global_mutex"); 261235783Skib 262280183Sdumbbell drm_global_init(); 263235783Skib 264280183Sdumbbell#if DRM_LINUX 265280183Sdumbbell linux_ioctl_register_handler(&drm_handler); 266280183Sdumbbell#endif /* DRM_LINUX */ 267235783Skib 268235783Skib DRM_INFO("Initialized %s %d.%d.%d %s\n", 269280183Sdumbbell CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE); 270235783Skib return 0; 271235783Skib} 272235783Skib 273280183Sdumbbellstatic void __exit drm_core_exit(void) 274235783Skib{ 275235783Skib 276280183Sdumbbell#if DRM_LINUX 277280183Sdumbbell linux_ioctl_unregister_handler(&drm_handler); 278280183Sdumbbell#endif /* DRM_LINUX */ 279235783Skib 280280183Sdumbbell drm_global_release(); 281235783Skib 282280183Sdumbbell sx_destroy(&drm_global_mutex); 283280183Sdumbbell} 284235783Skib 285280183SdumbbellSYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 286280183Sdumbbell drm_core_init, NULL); 287280183SdumbbellSYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 288280183Sdumbbell drm_core_exit, NULL); 289235783Skib 290280183Sdumbbell/** 291280183Sdumbbell * Copy and IOCTL return string to user space 292280183Sdumbbell */ 293280183Sdumbbellstatic int drm_copy_field(char *buf, size_t *buf_len, const char *value) 294235783Skib{ 295235783Skib int len; 296235783Skib 297280183Sdumbbell /* don't overflow userbuf */ 298280183Sdumbbell len = strlen(value); 299280183Sdumbbell if (len > *buf_len) 300280183Sdumbbell len = *buf_len; 301235783Skib 302280183Sdumbbell /* let userspace know exact length of driver value (which could be 303280183Sdumbbell * larger than the userspace-supplied buffer) */ 304280183Sdumbbell *buf_len = strlen(value); 305235783Skib 306280183Sdumbbell /* finally, try filling in the userbuf */ 307280183Sdumbbell if (len && buf) 308280183Sdumbbell if (copy_to_user(buf, value, len)) 309280183Sdumbbell return -EFAULT; 310235783Skib return 0; 311235783Skib} 312235783Skib 313280183Sdumbbell/** 314280183Sdumbbell * Get version information 315280183Sdumbbell * 316280183Sdumbbell * \param inode device inode. 317280183Sdumbbell * \param filp file pointer. 318280183Sdumbbell * \param cmd command. 319280183Sdumbbell * \param arg user argument, pointing to a drm_version structure. 320280183Sdumbbell * \return zero on success or negative number on failure. 321280183Sdumbbell * 322280183Sdumbbell * Fills in the version information in \p arg. 323280183Sdumbbell */ 324280183Sdumbbellint drm_version(struct drm_device *dev, void *data, 325280183Sdumbbell struct drm_file *file_priv) 326235783Skib{ 327280183Sdumbbell struct drm_version *version = data; 328280183Sdumbbell int err; 329235783Skib 330280183Sdumbbell version->version_major = dev->driver->major; 331280183Sdumbbell version->version_minor = dev->driver->minor; 332280183Sdumbbell version->version_patchlevel = dev->driver->patchlevel; 333280183Sdumbbell err = drm_copy_field(version->name, &version->name_len, 334280183Sdumbbell dev->driver->name); 335280183Sdumbbell if (!err) 336280183Sdumbbell err = drm_copy_field(version->date, &version->date_len, 337280183Sdumbbell dev->driver->date); 338280183Sdumbbell if (!err) 339280183Sdumbbell err = drm_copy_field(version->desc, &version->desc_len, 340280183Sdumbbell dev->driver->desc); 341235783Skib 342280183Sdumbbell return err; 343235783Skib} 344235783Skib 345280183Sdumbbell/** 346280183Sdumbbell * Called whenever a process performs an ioctl on /dev/drm. 347280183Sdumbbell * 348280183Sdumbbell * \param inode device inode. 349280183Sdumbbell * \param file_priv DRM file private. 350280183Sdumbbell * \param cmd command. 351280183Sdumbbell * \param arg user argument. 352280183Sdumbbell * \return zero on success or negative number on failure. 353280183Sdumbbell * 354280183Sdumbbell * Looks up the ioctl function in the ::ioctls table, checking for root 355280183Sdumbbell * previleges if so required, and dispatches to the respective function. 356235783Skib */ 357254792Sdumbbellint drm_ioctl(struct cdev *kdev, u_long cmd, caddr_t data, int flags, 358235783Skib DRM_STRUCTPROC *p) 359235783Skib{ 360235783Skib struct drm_file *file_priv; 361280183Sdumbbell struct drm_device *dev; 362280183Sdumbbell struct drm_ioctl_desc *ioctl; 363280183Sdumbbell drm_ioctl_t *func; 364280183Sdumbbell unsigned int nr = DRM_IOCTL_NR(cmd); 365280183Sdumbbell int retcode; 366235783Skib 367280183Sdumbbell dev = drm_get_device_from_kdev(kdev); 368280183Sdumbbell 369235783Skib retcode = devfs_get_cdevpriv((void **)&file_priv); 370235783Skib if (retcode != 0) { 371235783Skib DRM_ERROR("can't find authenticator\n"); 372235783Skib return EINVAL; 373235783Skib } 374235783Skib 375280183Sdumbbell retcode = -EINVAL; 376280183Sdumbbell 377280183Sdumbbell atomic_inc(&dev->ioctl_count); 378235783Skib atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); 379235783Skib ++file_priv->ioctl_count; 380235783Skib 381235783Skib DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", 382280183Sdumbbell DRM_CURRENTPID, cmd, nr, 383280183Sdumbbell (long)file_priv->minor->device, 384280183Sdumbbell file_priv->authenticated); 385235783Skib 386235783Skib switch (cmd) { 387235783Skib case FIONBIO: 388235783Skib case FIOASYNC: 389296674Sdumbbell atomic_dec(&dev->ioctl_count); 390235783Skib return 0; 391235783Skib 392235783Skib case FIOSETOWN: 393296674Sdumbbell atomic_dec(&dev->ioctl_count); 394280183Sdumbbell return fsetown(*(int *)data, &file_priv->minor->buf_sigio); 395235783Skib 396235783Skib case FIOGETOWN: 397296674Sdumbbell atomic_dec(&dev->ioctl_count); 398280183Sdumbbell *(int *) data = fgetown(&file_priv->minor->buf_sigio); 399235783Skib return 0; 400235783Skib } 401235783Skib 402235783Skib if (IOCGROUP(cmd) != DRM_IOCTL_BASE) { 403296674Sdumbbell atomic_dec(&dev->ioctl_count); 404235783Skib DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd)); 405235783Skib return EINVAL; 406235783Skib } 407235783Skib 408280183Sdumbbell if ((nr >= DRM_CORE_IOCTL_COUNT) && 409280183Sdumbbell ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END))) 410280183Sdumbbell goto err_i1; 411239375Skib#ifdef COMPAT_FREEBSD32 412280183Sdumbbell if (SV_CURPROC_FLAG(SV_ILP32) && 413280183Sdumbbell (nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) && 414280183Sdumbbell (nr < DRM_COMMAND_BASE + *dev->driver->num_compat_ioctls) && 415280183Sdumbbell (dev->driver->compat_ioctls[nr - DRM_COMMAND_BASE].func != NULL)) { 416280183Sdumbbell ioctl = &dev->driver->compat_ioctls[nr - DRM_COMMAND_BASE]; 417280183Sdumbbell } else 418280183Sdumbbell#endif 419280183Sdumbbell if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) && 420280183Sdumbbell (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) { 421280183Sdumbbell ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE]; 422280183Sdumbbell } 423280183Sdumbbell else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) { 424280183Sdumbbell#ifdef COMPAT_FREEBSD32 425239375Skib /* 426280183Sdumbbell * Called whenever a 32-bit process running under a 64-bit 427280183Sdumbbell * kernel performs an ioctl on /dev/drm. 428239375Skib */ 429280183Sdumbbell if (SV_CURPROC_FLAG(SV_ILP32) && drm_compat_ioctls[nr].func != NULL) 430280183Sdumbbell /* 431280183Sdumbbell * Assume that ioctls without an explicit compat 432280183Sdumbbell * routine will just work. This may not always be a 433280183Sdumbbell * good assumption, but it's better than always 434280183Sdumbbell * failing. 435280183Sdumbbell */ 436280183Sdumbbell ioctl = &drm_compat_ioctls[nr]; 437280183Sdumbbell else 438239375Skib#endif 439280183Sdumbbell ioctl = &drm_ioctls[nr]; 440280183Sdumbbell } else 441280183Sdumbbell goto err_i1; 442280183Sdumbbell 443280183Sdumbbell /* Do not trust userspace, use our own definition */ 444280183Sdumbbell func = ioctl->func; 445280183Sdumbbell /* is there a local override? */ 446280183Sdumbbell#ifdef FREEBSD_NOTYET 447239375Skib#ifdef COMPAT_FREEBSD32 448280183Sdumbbell if (SV_CURPROC_FLAG(SV_ILP32) && 449280183Sdumbbell (nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_compat_ioctl) 450280183Sdumbbell func = dev->driver->dma_compat_ioctl; 451280183Sdumbbell else 452239375Skib#endif 453280183Sdumbbell#endif /* FREEBSD_NOTYET */ 454280183Sdumbbell if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl) 455280183Sdumbbell func = dev->driver->dma_ioctl; 456235783Skib 457280183Sdumbbell if (!func) { 458235783Skib DRM_DEBUG("no function\n"); 459280183Sdumbbell retcode = -EINVAL; 460280183Sdumbbell } else if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) || 461280183Sdumbbell ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) || 462280183Sdumbbell ((ioctl->flags & DRM_MASTER) && !file_priv->is_master) || 463280183Sdumbbell (!(ioctl->flags & DRM_CONTROL_ALLOW) && (file_priv->minor->type == DRM_MINOR_CONTROL))) { 464280183Sdumbbell retcode = -EACCES; 465235783Skib } else { 466280183Sdumbbell if (ioctl->flags & DRM_UNLOCKED) 467280183Sdumbbell retcode = func(dev, data, file_priv); 468280183Sdumbbell else { 469280183Sdumbbell sx_xlock(&drm_global_mutex); 470280183Sdumbbell retcode = func(dev, data, file_priv); 471280183Sdumbbell sx_xunlock(&drm_global_mutex); 472280183Sdumbbell } 473235783Skib } 474235783Skib 475280183Sdumbbell err_i1: 476280183Sdumbbell atomic_dec(&dev->ioctl_count); 477296548Sdumbbell if (retcode == -ERESTARTSYS) { 478296548Sdumbbell /* 479296548Sdumbbell * FIXME: Find where in i915 ERESTARTSYS should be 480296548Sdumbbell * converted to EINTR. 481296548Sdumbbell */ 482296548Sdumbbell DRM_DEBUG("ret = %d -> %d\n", retcode, -EINTR); 483296548Sdumbbell retcode = -EINTR; 484296548Sdumbbell } 485280183Sdumbbell if (retcode) 486280183Sdumbbell DRM_DEBUG("ret = %d\n", retcode); 487235783Skib if (retcode != 0 && 488280183Sdumbbell (drm_debug & DRM_DEBUGBITS_FAILED_IOCTL) != 0) { 489235783Skib printf( 490280183Sdumbbell"pid %d, cmd 0x%02lx, nr 0x%02x, dev 0x%lx, auth %d, res %d\n", 491280183Sdumbbell DRM_CURRENTPID, cmd, nr, (long)file_priv->minor->device, 492280183Sdumbbell file_priv->authenticated, -retcode); 493235783Skib } 494235783Skib 495280183Sdumbbell return -retcode; 496235783Skib} 497280183SdumbbellEXPORT_SYMBOL(drm_ioctl); 498235783Skib 499280183Sdumbbellstruct drm_local_map *drm_getsarea(struct drm_device *dev) 500235783Skib{ 501280183Sdumbbell struct drm_map_list *entry; 502235783Skib 503280183Sdumbbell list_for_each_entry(entry, &dev->maplist, head) { 504280183Sdumbbell if (entry->map && entry->map->type == _DRM_SHM && 505280183Sdumbbell (entry->map->flags & _DRM_CONTAINS_LOCK)) { 506280183Sdumbbell return entry->map; 507280183Sdumbbell } 508235783Skib } 509235783Skib return NULL; 510235783Skib} 511280183SdumbbellEXPORT_SYMBOL(drm_getsarea); 512