1282199Sdumbbell/** 2282199Sdumbbell * \file drm_drv.c 3282199Sdumbbell * Generic driver template 4282199Sdumbbell * 5282199Sdumbbell * \author Rickard E. (Rik) Faith <faith@valinux.com> 6282199Sdumbbell * \author Gareth Hughes <gareth@valinux.com> 7282199Sdumbbell * 8282199Sdumbbell * To use this template, you must at least define the following (samples 9282199Sdumbbell * given for the MGA driver): 10282199Sdumbbell * 11282199Sdumbbell * \code 12282199Sdumbbell * #define DRIVER_AUTHOR "VA Linux Systems, Inc." 13282199Sdumbbell * 14282199Sdumbbell * #define DRIVER_NAME "mga" 15282199Sdumbbell * #define DRIVER_DESC "Matrox G200/G400" 16282199Sdumbbell * #define DRIVER_DATE "20001127" 17282199Sdumbbell * 18282199Sdumbbell * #define drm_x mga_##x 19282199Sdumbbell * \endcode 20282199Sdumbbell */ 21282199Sdumbbell 22282199Sdumbbell/* 23282199Sdumbbell * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com 24282199Sdumbbell * 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/10.3/sys/dev/drm2/drm_drv.c 282199 2015-04-28 19:35:05Z dumbbell $"); 51235783Skib 52282199Sdumbbell#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 58282199Sdumbbellstruct sx drm_global_mutex; 59235783Skib 60282199Sdumbbell/** Ioctl table */ 61282199Sdumbbellstatic struct drm_ioctl_desc drm_ioctls[] = { 62282199Sdumbbell 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), 66282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, DRM_UNLOCKED), 67282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, DRM_UNLOCKED), 68282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, DRM_UNLOCKED), 69235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED), 70282199Sdumbbell 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), 75282199Sdumbbell 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 94282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 95282199Sdumbbell 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), 107282199Sdumbbell /* The DRM_IOCTL_DMA ioctl should be defined by the driver. */ 108282199Sdumbbell 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 112282199Sdumbbell#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), 121282199Sdumbbell#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), 125282199Sdumbbell 126235783Skib DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, DRM_UNLOCKED), 127282199Sdumbbell 128235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0), 129235783Skib 130282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 131282199Sdumbbell 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 136282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 137282199Sdumbbell 138282199Sdumbbell#ifdef FREEBSD_NOTYET 139282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_PRIME_HANDLE_TO_FD, drm_prime_handle_to_fd_ioctl, DRM_AUTH|DRM_UNLOCKED), 140282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_PRIME_FD_TO_HANDLE, drm_prime_fd_to_handle_ioctl, DRM_AUTH|DRM_UNLOCKED), 141282199Sdumbbell#endif /* FREEBSD_NOTYET */ 142282199Sdumbbell 143282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 144282199Sdumbbell 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), 146282199Sdumbbell 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), 149282199Sdumbbell 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), 151282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 152282199Sdumbbell 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), 155282199Sdumbbell 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), 157282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 158282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 159282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 160282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 161282199Sdumbbell 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), 164282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 165282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 166282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 167282199Sdumbbell DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_GETPROPERTIES, drm_mode_obj_get_properties_ioctl, DRM_CONTROL_ALLOW|DRM_UNLOCKED), 168280369Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_OBJ_SETPROPERTY, drm_mode_obj_set_property_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 169235783Skib}; 170235783Skib 171282199Sdumbbell#ifdef COMPAT_FREEBSD32 172282199Sdumbbellextern struct drm_ioctl_desc drm_compat_ioctls[]; 173282199Sdumbbell#endif 174235783Skib 175282199Sdumbbell#define DRM_CORE_IOCTL_COUNT ARRAY_SIZE( drm_ioctls ) 176235783Skib 177282199Sdumbbell/** 178282199Sdumbbell * Take down the DRM device. 179282199Sdumbbell * 180282199Sdumbbell * \param dev DRM device structure. 181282199Sdumbbell * 182282199Sdumbbell * Frees every resource in \p dev. 183282199Sdumbbell * 184282199Sdumbbell * \sa drm_device 185282199Sdumbbell */ 186282199Sdumbbellint drm_lastclose(struct drm_device * dev) 187235783Skib{ 188282199Sdumbbell#ifdef __linux__ 189282199Sdumbbell struct drm_vma_entry *vma, *vma_temp; 190235783Skib#endif 191235783Skib 192235783Skib DRM_DEBUG("\n"); 193235783Skib 194282199Sdumbbell if (dev->driver->lastclose) 195235783Skib dev->driver->lastclose(dev); 196282199Sdumbbell DRM_DEBUG("driver lastclose completed\n"); 197235783Skib 198282199Sdumbbell 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 */ 204282199Sdumbbell if (drm_core_has_AGP(dev) && dev->agp && 205282199Sdumbbell !drm_core_check_feature(dev, DRIVER_MODESET)) { 206282199Sdumbbell struct drm_agp_mem *entry, *tempe; 207235783Skib 208282199Sdumbbell /* Remove AGP resources, but leave dev->agp 209282199Sdumbbell intact until drv_cleanup is called. */ 210282199Sdumbbell list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) { 211235783Skib if (entry->bound) 212282199Sdumbbell drm_unbind_agp(entry->memory); 213282199Sdumbbell drm_free_agp(entry->memory, entry->pages); 214235783Skib free(entry, DRM_MEM_AGPLISTS); 215235783Skib } 216282199Sdumbbell INIT_LIST_HEAD(&dev->agp->memory); 217235783Skib 218235783Skib if (dev->agp->acquired) 219235783Skib drm_agp_release(dev); 220235783Skib 221235783Skib dev->agp->acquired = 0; 222282199Sdumbbell dev->agp->enabled = 0; 223235783Skib } 224282199Sdumbbell if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg && 225282199Sdumbbell !drm_core_check_feature(dev, DRIVER_MODESET)) { 226235783Skib drm_sg_cleanup(dev->sg); 227235783Skib dev->sg = NULL; 228235783Skib } 229235783Skib 230282199Sdumbbell#ifdef __linux__ 231282199Sdumbbell /* Clear vma list (only built for debugging) */ 232282199Sdumbbell list_for_each_entry_safe(vma, vma_temp, &dev->vmalist, head) { 233282199Sdumbbell list_del(&vma->head); 234282199Sdumbbell kfree(vma); 235235783Skib } 236282199Sdumbbell#endif 237235783Skib 238282199Sdumbbell if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && 239282199Sdumbbell !drm_core_check_feature(dev, DRIVER_MODESET)) 240282199Sdumbbell drm_dma_takedown(dev); 241235783Skib 242282199Sdumbbell DRM_UNLOCK(dev); 243282199Sdumbbell 244282199Sdumbbell DRM_DEBUG("lastclose completed\n"); 245235783Skib return 0; 246235783Skib} 247235783Skib 248282199Sdumbbell#ifdef __linux__ 249282199Sdumbbell/** File operations structure */ 250282199Sdumbbellstatic const struct file_operations drm_stub_fops = { 251282199Sdumbbell .owner = THIS_MODULE, 252282199Sdumbbell .open = drm_stub_open, 253282199Sdumbbell .llseek = noop_llseek, 254282199Sdumbbell}; 255282199Sdumbbell#endif 256282199Sdumbbell 257282199Sdumbbellstatic int __init drm_core_init(void) 258235783Skib{ 259235783Skib 260282199Sdumbbell sx_init(&drm_global_mutex, "drm_global_mutex"); 261235783Skib 262282199Sdumbbell drm_global_init(); 263235783Skib 264282199Sdumbbell#if DRM_LINUX 265282199Sdumbbell linux_ioctl_register_handler(&drm_handler); 266282199Sdumbbell#endif /* DRM_LINUX */ 267235783Skib 268235783Skib DRM_INFO("Initialized %s %d.%d.%d %s\n", 269282199Sdumbbell CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE); 270235783Skib return 0; 271235783Skib} 272235783Skib 273282199Sdumbbellstatic void __exit drm_core_exit(void) 274235783Skib{ 275235783Skib 276282199Sdumbbell#if DRM_LINUX 277282199Sdumbbell linux_ioctl_unregister_handler(&drm_handler); 278282199Sdumbbell#endif /* DRM_LINUX */ 279235783Skib 280282199Sdumbbell drm_global_release(); 281235783Skib 282282199Sdumbbell sx_destroy(&drm_global_mutex); 283282199Sdumbbell} 284235783Skib 285282199SdumbbellSYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 286282199Sdumbbell drm_core_init, NULL); 287282199SdumbbellSYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 288282199Sdumbbell drm_core_exit, NULL); 289235783Skib 290282199Sdumbbell/** 291282199Sdumbbell * Copy and IOCTL return string to user space 292282199Sdumbbell */ 293282199Sdumbbellstatic int drm_copy_field(char *buf, size_t *buf_len, const char *value) 294235783Skib{ 295235783Skib int len; 296235783Skib 297282199Sdumbbell /* don't overflow userbuf */ 298282199Sdumbbell len = strlen(value); 299282199Sdumbbell if (len > *buf_len) 300282199Sdumbbell len = *buf_len; 301235783Skib 302282199Sdumbbell /* let userspace know exact length of driver value (which could be 303282199Sdumbbell * larger than the userspace-supplied buffer) */ 304282199Sdumbbell *buf_len = strlen(value); 305235783Skib 306282199Sdumbbell /* finally, try filling in the userbuf */ 307282199Sdumbbell if (len && buf) 308282199Sdumbbell if (copy_to_user(buf, value, len)) 309282199Sdumbbell return -EFAULT; 310235783Skib return 0; 311235783Skib} 312235783Skib 313282199Sdumbbell/** 314282199Sdumbbell * Get version information 315282199Sdumbbell * 316282199Sdumbbell * \param inode device inode. 317282199Sdumbbell * \param filp file pointer. 318282199Sdumbbell * \param cmd command. 319282199Sdumbbell * \param arg user argument, pointing to a drm_version structure. 320282199Sdumbbell * \return zero on success or negative number on failure. 321282199Sdumbbell * 322282199Sdumbbell * Fills in the version information in \p arg. 323282199Sdumbbell */ 324282199Sdumbbellint drm_version(struct drm_device *dev, void *data, 325282199Sdumbbell struct drm_file *file_priv) 326235783Skib{ 327282199Sdumbbell struct drm_version *version = data; 328282199Sdumbbell int err; 329235783Skib 330282199Sdumbbell version->version_major = dev->driver->major; 331282199Sdumbbell version->version_minor = dev->driver->minor; 332282199Sdumbbell version->version_patchlevel = dev->driver->patchlevel; 333282199Sdumbbell err = drm_copy_field(version->name, &version->name_len, 334282199Sdumbbell dev->driver->name); 335282199Sdumbbell if (!err) 336282199Sdumbbell err = drm_copy_field(version->date, &version->date_len, 337282199Sdumbbell dev->driver->date); 338282199Sdumbbell if (!err) 339282199Sdumbbell err = drm_copy_field(version->desc, &version->desc_len, 340282199Sdumbbell dev->driver->desc); 341235783Skib 342282199Sdumbbell return err; 343235783Skib} 344235783Skib 345282199Sdumbbell/** 346282199Sdumbbell * Called whenever a process performs an ioctl on /dev/drm. 347282199Sdumbbell * 348282199Sdumbbell * \param inode device inode. 349282199Sdumbbell * \param file_priv DRM file private. 350282199Sdumbbell * \param cmd command. 351282199Sdumbbell * \param arg user argument. 352282199Sdumbbell * \return zero on success or negative number on failure. 353282199Sdumbbell * 354282199Sdumbbell * Looks up the ioctl function in the ::ioctls table, checking for root 355282199Sdumbbell * 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; 361282199Sdumbbell struct drm_device *dev; 362282199Sdumbbell struct drm_ioctl_desc *ioctl; 363282199Sdumbbell drm_ioctl_t *func; 364282199Sdumbbell unsigned int nr = DRM_IOCTL_NR(cmd); 365282199Sdumbbell int retcode; 366235783Skib 367282199Sdumbbell dev = drm_get_device_from_kdev(kdev); 368282199Sdumbbell 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 375282199Sdumbbell retcode = -EINVAL; 376282199Sdumbbell 377282199Sdumbbell 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", 382282199Sdumbbell DRM_CURRENTPID, cmd, nr, 383282199Sdumbbell (long)file_priv->minor->device, 384282199Sdumbbell file_priv->authenticated); 385235783Skib 386235783Skib switch (cmd) { 387235783Skib case FIONBIO: 388235783Skib case FIOASYNC: 389235783Skib return 0; 390235783Skib 391235783Skib case FIOSETOWN: 392282199Sdumbbell return fsetown(*(int *)data, &file_priv->minor->buf_sigio); 393235783Skib 394235783Skib case FIOGETOWN: 395282199Sdumbbell *(int *) data = fgetown(&file_priv->minor->buf_sigio); 396235783Skib return 0; 397235783Skib } 398235783Skib 399235783Skib if (IOCGROUP(cmd) != DRM_IOCTL_BASE) { 400235783Skib DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd)); 401235783Skib return EINVAL; 402235783Skib } 403235783Skib 404282199Sdumbbell if ((nr >= DRM_CORE_IOCTL_COUNT) && 405282199Sdumbbell ((nr < DRM_COMMAND_BASE) || (nr >= DRM_COMMAND_END))) 406282199Sdumbbell goto err_i1; 407239375Skib#ifdef COMPAT_FREEBSD32 408282199Sdumbbell if (SV_CURPROC_FLAG(SV_ILP32) && 409282199Sdumbbell (nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) && 410282199Sdumbbell (nr < DRM_COMMAND_BASE + *dev->driver->num_compat_ioctls) && 411282199Sdumbbell (dev->driver->compat_ioctls[nr - DRM_COMMAND_BASE].func != NULL)) { 412282199Sdumbbell ioctl = &dev->driver->compat_ioctls[nr - DRM_COMMAND_BASE]; 413282199Sdumbbell } else 414282199Sdumbbell#endif 415282199Sdumbbell if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) && 416282199Sdumbbell (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) { 417282199Sdumbbell ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE]; 418282199Sdumbbell } 419282199Sdumbbell else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) { 420282199Sdumbbell#ifdef COMPAT_FREEBSD32 421239375Skib /* 422282199Sdumbbell * Called whenever a 32-bit process running under a 64-bit 423282199Sdumbbell * kernel performs an ioctl on /dev/drm. 424239375Skib */ 425282199Sdumbbell if (SV_CURPROC_FLAG(SV_ILP32) && drm_compat_ioctls[nr].func != NULL) 426282199Sdumbbell /* 427282199Sdumbbell * Assume that ioctls without an explicit compat 428282199Sdumbbell * routine will just work. This may not always be a 429282199Sdumbbell * good assumption, but it's better than always 430282199Sdumbbell * failing. 431282199Sdumbbell */ 432282199Sdumbbell ioctl = &drm_compat_ioctls[nr]; 433282199Sdumbbell else 434239375Skib#endif 435282199Sdumbbell ioctl = &drm_ioctls[nr]; 436282199Sdumbbell } else 437282199Sdumbbell goto err_i1; 438282199Sdumbbell 439282199Sdumbbell /* Do not trust userspace, use our own definition */ 440282199Sdumbbell func = ioctl->func; 441282199Sdumbbell /* is there a local override? */ 442282199Sdumbbell#ifdef FREEBSD_NOTYET 443239375Skib#ifdef COMPAT_FREEBSD32 444282199Sdumbbell if (SV_CURPROC_FLAG(SV_ILP32) && 445282199Sdumbbell (nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_compat_ioctl) 446282199Sdumbbell func = dev->driver->dma_compat_ioctl; 447282199Sdumbbell else 448239375Skib#endif 449282199Sdumbbell#endif /* FREEBSD_NOTYET */ 450282199Sdumbbell if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl) 451282199Sdumbbell func = dev->driver->dma_ioctl; 452235783Skib 453282199Sdumbbell if (!func) { 454235783Skib DRM_DEBUG("no function\n"); 455282199Sdumbbell retcode = -EINVAL; 456282199Sdumbbell } else if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) || 457282199Sdumbbell ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) || 458282199Sdumbbell ((ioctl->flags & DRM_MASTER) && !file_priv->is_master) || 459282199Sdumbbell (!(ioctl->flags & DRM_CONTROL_ALLOW) && (file_priv->minor->type == DRM_MINOR_CONTROL))) { 460282199Sdumbbell retcode = -EACCES; 461235783Skib } else { 462282199Sdumbbell if (ioctl->flags & DRM_UNLOCKED) 463282199Sdumbbell retcode = func(dev, data, file_priv); 464282199Sdumbbell else { 465282199Sdumbbell sx_xlock(&drm_global_mutex); 466282199Sdumbbell retcode = func(dev, data, file_priv); 467282199Sdumbbell sx_xunlock(&drm_global_mutex); 468282199Sdumbbell } 469235783Skib } 470235783Skib 471282199Sdumbbell err_i1: 472282199Sdumbbell atomic_dec(&dev->ioctl_count); 473282199Sdumbbell if (retcode) 474282199Sdumbbell DRM_DEBUG("ret = %d\n", retcode); 475235783Skib if (retcode != 0 && 476282199Sdumbbell (drm_debug & DRM_DEBUGBITS_FAILED_IOCTL) != 0) { 477235783Skib printf( 478282199Sdumbbell"pid %d, cmd 0x%02lx, nr 0x%02x, dev 0x%lx, auth %d, res %d\n", 479282199Sdumbbell DRM_CURRENTPID, cmd, nr, (long)file_priv->minor->device, 480282199Sdumbbell file_priv->authenticated, -retcode); 481235783Skib } 482235783Skib 483282199Sdumbbell return -retcode; 484235783Skib} 485282199SdumbbellEXPORT_SYMBOL(drm_ioctl); 486235783Skib 487282199Sdumbbellstruct drm_local_map *drm_getsarea(struct drm_device *dev) 488235783Skib{ 489282199Sdumbbell struct drm_map_list *entry; 490235783Skib 491282199Sdumbbell list_for_each_entry(entry, &dev->maplist, head) { 492282199Sdumbbell if (entry->map && entry->map->type == _DRM_SHM && 493282199Sdumbbell (entry->map->flags & _DRM_CONTAINS_LOCK)) { 494282199Sdumbbell return entry->map; 495282199Sdumbbell } 496235783Skib } 497235783Skib return NULL; 498235783Skib} 499282199SdumbbellEXPORT_SYMBOL(drm_getsarea); 500