drm_drv.c revision 275209
1235783Skib/*- 2235783Skib * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. 3235783Skib * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. 4235783Skib * All Rights Reserved. 5235783Skib * 6235783Skib * Permission is hereby granted, free of charge, to any person obtaining a 7235783Skib * copy of this software and associated documentation files (the "Software"), 8235783Skib * to deal in the Software without restriction, including without limitation 9235783Skib * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10235783Skib * and/or sell copies of the Software, and to permit persons to whom the 11235783Skib * Software is furnished to do so, subject to the following conditions: 12235783Skib * 13235783Skib * The above copyright notice and this permission notice (including the next 14235783Skib * paragraph) shall be included in all copies or substantial portions of the 15235783Skib * Software. 16235783Skib * 17235783Skib * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18235783Skib * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19235783Skib * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20235783Skib * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 21235783Skib * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 22235783Skib * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23235783Skib * OTHER DEALINGS IN THE SOFTWARE. 24235783Skib * 25235783Skib * Authors: 26235783Skib * Rickard E. (Rik) Faith <faith@valinux.com> 27235783Skib * Gareth Hughes <gareth@valinux.com> 28235783Skib * 29235783Skib */ 30235783Skib 31235783Skib#include <sys/cdefs.h> 32235783Skib__FBSDID("$FreeBSD: head/sys/dev/drm2/drm_drv.c 275209 2014-11-28 12:14:59Z rea $"); 33235783Skib 34235783Skib/** @file drm_drv.c 35235783Skib * The catch-all file for DRM device support, including module setup/teardown, 36235783Skib * open/close, and ioctl dispatch. 37235783Skib */ 38235783Skib 39235783Skib#include <sys/limits.h> 40239375Skib#include <sys/sysent.h> 41235783Skib#include <dev/drm2/drmP.h> 42235783Skib#include <dev/drm2/drm.h> 43254792Sdumbbell#include <dev/drm2/drm_core.h> 44254792Sdumbbell#include <dev/drm2/drm_global.h> 45235783Skib#include <dev/drm2/drm_sarea.h> 46235783Skib#include <dev/drm2/drm_mode.h> 47235783Skib 48235783Skib#ifdef DRM_DEBUG_DEFAULT_ON 49242467Sglebiusint drm_debug_flag = (DRM_DEBUGBITS_DEBUG | DRM_DEBUGBITS_KMS | 50242467Sglebius DRM_DEBUGBITS_FAILED_IOCTL); 51235783Skib#else 52242467Sglebiusint drm_debug_flag = 0; 53235783Skib#endif 54235783Skibint drm_notyet_flag = 0; 55235783Skib 56235783Skibunsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */ 57235783Skibunsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */ 58235783Skib 59258262Sdumbbell/* 60258262Sdumbbell * Default to use monotonic timestamps for wait-for-vblank and page-flip 61258262Sdumbbell * complete events. 62258262Sdumbbell */ 63258262Sdumbbellunsigned int drm_timestamp_monotonic = 1; 64258262Sdumbbell 65235783Skibstatic int drm_load(struct drm_device *dev); 66235783Skibstatic void drm_unload(struct drm_device *dev); 67235783Skibstatic drm_pci_id_list_t *drm_find_description(int vendor, int device, 68235783Skib drm_pci_id_list_t *idlist); 69247835Skibstatic int drm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset, 70247835Skib vm_size_t size, struct vm_object **obj_res, int nprot); 71235783Skib 72235783Skibstatic int 73235783Skibdrm_modevent(module_t mod, int type, void *data) 74235783Skib{ 75235783Skib 76235783Skib switch (type) { 77235783Skib case MOD_LOAD: 78235783Skib TUNABLE_INT_FETCH("drm.debug", &drm_debug_flag); 79235783Skib TUNABLE_INT_FETCH("drm.notyet", &drm_notyet_flag); 80235783Skib break; 81235783Skib } 82235783Skib return (0); 83235783Skib} 84235783Skib 85235783Skibstatic moduledata_t drm_mod = { 86235783Skib "drmn", 87235783Skib drm_modevent, 88241394Skevlo 0 89254792Sdumbbell}; 90235783SkibDECLARE_MODULE(drmn, drm_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST); 91235783SkibMODULE_VERSION(drmn, 1); 92235783SkibMODULE_DEPEND(drmn, agp, 1, 1, 1); 93235783SkibMODULE_DEPEND(drmn, pci, 1, 1, 1); 94235783SkibMODULE_DEPEND(drmn, mem, 1, 1, 1); 95235783SkibMODULE_DEPEND(drmn, iicbus, 1, 1, 1); 96235783Skib 97235783Skibstatic drm_ioctl_desc_t drm_ioctls[256] = { 98235783Skib DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0), 99235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0), 100235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0), 101235783Skib DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY), 102235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0), 103235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0), 104235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0), 105235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED), 106235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY), 107235783Skib 108235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 109235783Skib DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 110235783Skib DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 111235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 112235783Skib 113235783Skib DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 114235783Skib DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH), 115235783Skib 116235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 117235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH), 118235783Skib 119235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY), 120235783Skib DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY), 121235783Skib 122235783Skib DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY), 123235783Skib DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 124235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 125235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH), 126235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 127235783Skib DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 128235783Skib DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH), 129235783Skib 130235783Skib DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 131235783Skib DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 132235783Skib 133235783Skib DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH), 134235783Skib DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH), 135235783Skib 136235783Skib DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH), 137235783Skib 138235783Skib DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 139235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 140235783Skib DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH), 141235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH), 142235783Skib DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH), 143235783Skib DRM_IOCTL_DEF(DRM_IOCTL_DMA, drm_dma, DRM_AUTH), 144235783Skib 145235783Skib DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 146235783Skib 147235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 148235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 149235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 150235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH), 151235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 152235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 153235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 154235783Skib DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 155235783Skib 156235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 157235783Skib DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 158235783Skib DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, DRM_UNLOCKED), 159235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0), 160235783Skib DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_draw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 161235783Skib 162235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED), 163235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED), 164235783Skib DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED), 165235783Skib 166235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 167235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 168235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 169235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 170235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANE, drm_mode_getplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 171235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPLANE, drm_mode_setplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 172235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 173235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER|DRM_UNLOCKED), 174235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED), 175235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 176235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 177235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 178235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 179235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW|DRM_UNLOCKED), 180235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 181235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 182235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 183235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 184235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 185235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 186235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 187235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 188235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 189235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 190235783Skib DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED), 191235783Skib}; 192235783Skib 193235783Skibstatic struct cdevsw drm_cdevsw = { 194235783Skib .d_version = D_VERSION, 195235783Skib .d_open = drm_open, 196235783Skib .d_read = drm_read, 197235783Skib .d_ioctl = drm_ioctl, 198235783Skib .d_poll = drm_poll, 199235783Skib .d_mmap = drm_mmap, 200247835Skib .d_mmap_single = drm_mmap_single, 201235783Skib .d_name = "drm", 202235783Skib .d_flags = D_TRACKCLOSE 203235783Skib}; 204235783Skib 205235783Skibstatic int drm_msi = 1; /* Enable by default. */ 206235783SkibSYSCTL_NODE(_hw, OID_AUTO, drm, CTLFLAG_RW, NULL, "DRM device"); 207235783SkibSYSCTL_INT(_hw_drm, OID_AUTO, msi, CTLFLAG_RDTUN, &drm_msi, 1, 208235783Skib "Enable MSI interrupts for drm devices"); 209235783Skib 210235783Skibstatic struct drm_msi_blacklist_entry drm_msi_blacklist[] = { 211235783Skib {0x8086, 0x2772}, /* Intel i945G */ \ 212235783Skib {0x8086, 0x27A2}, /* Intel i945GM */ \ 213235783Skib {0x8086, 0x27AE}, /* Intel i945GME */ \ 214235783Skib {0, 0} 215235783Skib}; 216235783Skib 217254820Sdumbbellstatic int drm_msi_is_blacklisted(struct drm_device *dev, unsigned long flags) 218235783Skib{ 219235783Skib int i = 0; 220254792Sdumbbell 221254820Sdumbbell if (dev->driver->use_msi != NULL) { 222254820Sdumbbell int use_msi; 223254820Sdumbbell 224254820Sdumbbell use_msi = dev->driver->use_msi(dev, flags); 225254820Sdumbbell 226254820Sdumbbell return (!use_msi); 227254820Sdumbbell } 228254820Sdumbbell 229254820Sdumbbell /* TODO: Maybe move this to a callback in i915? */ 230235783Skib for (i = 0; drm_msi_blacklist[i].vendor != 0; i++) { 231254820Sdumbbell if ((drm_msi_blacklist[i].vendor == dev->pci_vendor) && 232254820Sdumbbell (drm_msi_blacklist[i].device == dev->pci_device)) { 233235783Skib return 1; 234235783Skib } 235235783Skib } 236235783Skib 237235783Skib return 0; 238235783Skib} 239235783Skib 240235783Skibint drm_probe(device_t kdev, drm_pci_id_list_t *idlist) 241235783Skib{ 242235783Skib drm_pci_id_list_t *id_entry; 243235783Skib int vendor, device; 244235783Skib 245235783Skib vendor = pci_get_vendor(kdev); 246235783Skib device = pci_get_device(kdev); 247235783Skib 248235783Skib if (pci_get_class(kdev) != PCIC_DISPLAY 249235783Skib || pci_get_subclass(kdev) != PCIS_DISPLAY_VGA) 250235783Skib return ENXIO; 251235783Skib 252235783Skib id_entry = drm_find_description(vendor, device, idlist); 253235783Skib if (id_entry != NULL) { 254235783Skib if (!device_get_desc(kdev)) { 255235783Skib DRM_DEBUG("desc : %s\n", device_get_desc(kdev)); 256235783Skib device_set_desc(kdev, id_entry->name); 257235783Skib } 258235783Skib return 0; 259235783Skib } 260235783Skib 261235783Skib return ENXIO; 262235783Skib} 263235783Skib 264235783Skibint drm_attach(device_t kdev, drm_pci_id_list_t *idlist) 265235783Skib{ 266235783Skib struct drm_device *dev; 267235783Skib drm_pci_id_list_t *id_entry; 268235783Skib int error, msicount; 269235783Skib 270235783Skib dev = device_get_softc(kdev); 271235783Skib 272235783Skib dev->device = kdev; 273235783Skib 274235783Skib dev->pci_domain = pci_get_domain(dev->device); 275235783Skib dev->pci_bus = pci_get_bus(dev->device); 276235783Skib dev->pci_slot = pci_get_slot(dev->device); 277235783Skib dev->pci_func = pci_get_function(dev->device); 278235783Skib 279235783Skib dev->pci_vendor = pci_get_vendor(dev->device); 280235783Skib dev->pci_device = pci_get_device(dev->device); 281254820Sdumbbell dev->pci_subvendor = pci_get_subvendor(dev->device); 282254820Sdumbbell dev->pci_subdevice = pci_get_subdevice(dev->device); 283235783Skib 284254820Sdumbbell id_entry = drm_find_description(dev->pci_vendor, 285254820Sdumbbell dev->pci_device, idlist); 286254820Sdumbbell dev->id_entry = id_entry; 287254820Sdumbbell 288235783Skib if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) { 289235783Skib if (drm_msi && 290254820Sdumbbell !drm_msi_is_blacklisted(dev, dev->id_entry->driver_private)) { 291235783Skib msicount = pci_msi_count(dev->device); 292235783Skib DRM_DEBUG("MSI count = %d\n", msicount); 293235783Skib if (msicount > 1) 294235783Skib msicount = 1; 295235783Skib 296235783Skib if (pci_alloc_msi(dev->device, &msicount) == 0) { 297235783Skib DRM_INFO("MSI enabled %d message(s)\n", 298235783Skib msicount); 299235783Skib dev->msi_enabled = 1; 300235783Skib dev->irqrid = 1; 301235783Skib } 302235783Skib } 303235783Skib 304235783Skib dev->irqr = bus_alloc_resource_any(dev->device, SYS_RES_IRQ, 305235783Skib &dev->irqrid, RF_SHAREABLE); 306235783Skib if (!dev->irqr) { 307235783Skib return (ENOENT); 308235783Skib } 309235783Skib 310235783Skib dev->irq = (int) rman_get_start(dev->irqr); 311235783Skib } 312235783Skib 313235783Skib mtx_init(&dev->dev_lock, "drmdev", NULL, MTX_DEF); 314235783Skib mtx_init(&dev->irq_lock, "drmirq", NULL, MTX_DEF); 315235783Skib mtx_init(&dev->vbl_lock, "drmvbl", NULL, MTX_DEF); 316235783Skib mtx_init(&dev->drw_lock, "drmdrw", NULL, MTX_DEF); 317235783Skib mtx_init(&dev->event_lock, "drmev", NULL, MTX_DEF); 318235783Skib sx_init(&dev->dev_struct_lock, "drmslk"); 319235783Skib 320235783Skib error = drm_load(dev); 321254821Sdumbbell if (error) 322254821Sdumbbell goto error; 323254821Sdumbbell 324254821Sdumbbell error = drm_create_cdevs(kdev); 325254821Sdumbbell if (error) 326254821Sdumbbell goto error; 327254821Sdumbbell 328235783Skib return (error); 329254821Sdumbbellerror: 330254821Sdumbbell if (dev->irqr) { 331254821Sdumbbell bus_release_resource(dev->device, SYS_RES_IRQ, 332254821Sdumbbell dev->irqrid, dev->irqr); 333254821Sdumbbell } 334254821Sdumbbell if (dev->msi_enabled) { 335254821Sdumbbell pci_release_msi(dev->device); 336254821Sdumbbell } 337254821Sdumbbell return (error); 338235783Skib} 339235783Skib 340235783Skibint 341235783Skibdrm_create_cdevs(device_t kdev) 342235783Skib{ 343235783Skib struct drm_device *dev; 344235783Skib int error, unit; 345235783Skib 346235783Skib unit = device_get_unit(kdev); 347235783Skib dev = device_get_softc(kdev); 348235783Skib 349235783Skib error = make_dev_p(MAKEDEV_WAITOK | MAKEDEV_CHECKNAME, &dev->devnode, 350235783Skib &drm_cdevsw, 0, DRM_DEV_UID, DRM_DEV_GID, 351235783Skib DRM_DEV_MODE, "dri/card%d", unit); 352235783Skib if (error == 0) 353235783Skib dev->devnode->si_drv1 = dev; 354235783Skib return (error); 355235783Skib} 356235783Skib 357235783Skibint drm_detach(device_t kdev) 358235783Skib{ 359235783Skib struct drm_device *dev; 360235783Skib 361235783Skib dev = device_get_softc(kdev); 362235783Skib drm_unload(dev); 363235783Skib if (dev->irqr) { 364235783Skib bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid, 365235783Skib dev->irqr); 366235783Skib if (dev->msi_enabled) { 367235783Skib pci_release_msi(dev->device); 368235783Skib DRM_INFO("MSI released\n"); 369235783Skib } 370235783Skib } 371235783Skib return (0); 372235783Skib} 373235783Skib 374235783Skib#ifndef DRM_DEV_NAME 375235783Skib#define DRM_DEV_NAME "drm" 376235783Skib#endif 377235783Skib 378235783Skibdevclass_t drm_devclass; 379235783Skib 380235783Skibdrm_pci_id_list_t *drm_find_description(int vendor, int device, 381235783Skib drm_pci_id_list_t *idlist) 382235783Skib{ 383235783Skib int i = 0; 384254792Sdumbbell 385235783Skib for (i = 0; idlist[i].vendor != 0; i++) { 386235783Skib if ((idlist[i].vendor == vendor) && 387235783Skib ((idlist[i].device == device) || 388235783Skib (idlist[i].device == 0))) { 389235783Skib return &idlist[i]; 390235783Skib } 391235783Skib } 392235783Skib return NULL; 393235783Skib} 394235783Skib 395235783Skibstatic int drm_firstopen(struct drm_device *dev) 396235783Skib{ 397235783Skib drm_local_map_t *map; 398235783Skib int i; 399235783Skib 400235783Skib DRM_LOCK_ASSERT(dev); 401235783Skib 402235783Skib /* prebuild the SAREA */ 403235783Skib i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, 404235783Skib _DRM_CONTAINS_LOCK, &map); 405235783Skib if (i != 0) 406235783Skib return i; 407235783Skib 408235783Skib if (dev->driver->firstopen) 409235783Skib dev->driver->firstopen(dev); 410235783Skib 411235783Skib dev->buf_use = 0; 412235783Skib 413235783Skib if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) { 414235783Skib i = drm_dma_setup(dev); 415235783Skib if (i != 0) 416235783Skib return i; 417235783Skib } 418235783Skib 419235783Skib for (i = 0; i < DRM_HASH_SIZE; i++) { 420235783Skib dev->magiclist[i].head = NULL; 421235783Skib dev->magiclist[i].tail = NULL; 422235783Skib } 423235783Skib 424235783Skib dev->lock.lock_queue = 0; 425235783Skib if (!drm_core_check_feature(dev, DRIVER_MODESET)) 426235783Skib dev->irq_enabled = 0; 427235783Skib dev->context_flag = 0; 428235783Skib dev->last_context = 0; 429235783Skib dev->if_version = 0; 430235783Skib 431235783Skib dev->buf_sigio = NULL; 432235783Skib 433235783Skib DRM_DEBUG("\n"); 434235783Skib 435235783Skib return 0; 436235783Skib} 437235783Skib 438235783Skibstatic int drm_lastclose(struct drm_device *dev) 439235783Skib{ 440235783Skib drm_magic_entry_t *pt, *next; 441235783Skib drm_local_map_t *map, *mapsave; 442235783Skib int i; 443235783Skib 444235783Skib DRM_LOCK_ASSERT(dev); 445235783Skib 446235783Skib DRM_DEBUG("\n"); 447235783Skib 448235783Skib if (dev->driver->lastclose != NULL) 449235783Skib dev->driver->lastclose(dev); 450235783Skib 451235783Skib if (!drm_core_check_feature(dev, DRIVER_MODESET) && dev->irq_enabled) 452235783Skib drm_irq_uninstall(dev); 453235783Skib 454235783Skib if (dev->unique) { 455235783Skib free(dev->unique, DRM_MEM_DRIVER); 456235783Skib dev->unique = NULL; 457235783Skib dev->unique_len = 0; 458235783Skib } 459235783Skib /* Clear pid list */ 460235783Skib for (i = 0; i < DRM_HASH_SIZE; i++) { 461235783Skib for (pt = dev->magiclist[i].head; pt; pt = next) { 462235783Skib next = pt->next; 463235783Skib free(pt, DRM_MEM_MAGIC); 464235783Skib } 465235783Skib dev->magiclist[i].head = dev->magiclist[i].tail = NULL; 466235783Skib } 467235783Skib 468235783Skib DRM_UNLOCK(dev); 469235783Skib drm_drawable_free_all(dev); 470235783Skib DRM_LOCK(dev); 471235783Skib 472235783Skib /* Clear AGP information */ 473235783Skib if (dev->agp) { 474235783Skib drm_agp_mem_t *entry; 475235783Skib drm_agp_mem_t *nexte; 476235783Skib 477235783Skib /* Remove AGP resources, but leave dev->agp intact until 478235783Skib * drm_unload is called. 479235783Skib */ 480235783Skib for (entry = dev->agp->memory; entry; entry = nexte) { 481235783Skib nexte = entry->next; 482235783Skib if (entry->bound) 483235783Skib drm_agp_unbind_memory(entry->handle); 484235783Skib drm_agp_free_memory(entry->handle); 485235783Skib free(entry, DRM_MEM_AGPLISTS); 486235783Skib } 487235783Skib dev->agp->memory = NULL; 488235783Skib 489235783Skib if (dev->agp->acquired) 490235783Skib drm_agp_release(dev); 491235783Skib 492235783Skib dev->agp->acquired = 0; 493235783Skib dev->agp->enabled = 0; 494235783Skib } 495235783Skib if (dev->sg != NULL) { 496235783Skib drm_sg_cleanup(dev->sg); 497235783Skib dev->sg = NULL; 498235783Skib } 499235783Skib 500235783Skib TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) { 501235783Skib if (!(map->flags & _DRM_DRIVER)) 502235783Skib drm_rmmap(dev, map); 503235783Skib } 504235783Skib 505235783Skib drm_dma_takedown(dev); 506235783Skib if (dev->lock.hw_lock) { 507235783Skib dev->lock.hw_lock = NULL; /* SHM removed */ 508235783Skib dev->lock.file_priv = NULL; 509235783Skib DRM_WAKEUP_INT((void *)&dev->lock.lock_queue); 510235783Skib } 511235783Skib 512235783Skib return 0; 513235783Skib} 514235783Skib 515235783Skibstatic int drm_load(struct drm_device *dev) 516235783Skib{ 517235783Skib int i, retcode; 518235783Skib 519235783Skib DRM_DEBUG("\n"); 520235783Skib 521235783Skib TAILQ_INIT(&dev->maplist); 522235783Skib dev->map_unrhdr = new_unrhdr(1, ((1 << DRM_MAP_HANDLE_BITS) - 1), NULL); 523235783Skib if (dev->map_unrhdr == NULL) { 524235783Skib DRM_ERROR("Couldn't allocate map number allocator\n"); 525235783Skib return EINVAL; 526235783Skib } 527235783Skib 528235783Skib 529235783Skib drm_mem_init(); 530235783Skib drm_sysctl_init(dev); 531235783Skib TAILQ_INIT(&dev->files); 532235783Skib 533235783Skib dev->counters = 6; 534235783Skib dev->types[0] = _DRM_STAT_LOCK; 535235783Skib dev->types[1] = _DRM_STAT_OPENS; 536235783Skib dev->types[2] = _DRM_STAT_CLOSES; 537235783Skib dev->types[3] = _DRM_STAT_IOCTLS; 538235783Skib dev->types[4] = _DRM_STAT_LOCKS; 539235783Skib dev->types[5] = _DRM_STAT_UNLOCKS; 540235783Skib 541235783Skib for (i = 0; i < DRM_ARRAY_SIZE(dev->counts); i++) 542235783Skib atomic_set(&dev->counts[i], 0); 543235783Skib 544235783Skib INIT_LIST_HEAD(&dev->vblank_event_list); 545235783Skib 546235783Skib if (drm_core_has_AGP(dev)) { 547235783Skib if (drm_device_is_agp(dev)) 548235783Skib dev->agp = drm_agp_init(); 549235783Skib if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) && 550235783Skib dev->agp == NULL) { 551235783Skib DRM_ERROR("Card isn't AGP, or couldn't initialize " 552235783Skib "AGP.\n"); 553235783Skib retcode = ENOMEM; 554235783Skib goto error; 555235783Skib } 556235783Skib if (dev->agp != NULL && dev->agp->info.ai_aperture_base != 0) { 557235783Skib if (drm_mtrr_add(dev->agp->info.ai_aperture_base, 558235783Skib dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0) 559235783Skib dev->agp->mtrr = 1; 560235783Skib } 561235783Skib } 562235783Skib 563235783Skib retcode = drm_ctxbitmap_init(dev); 564235783Skib if (retcode != 0) { 565235783Skib DRM_ERROR("Cannot allocate memory for context bitmap.\n"); 566235783Skib goto error; 567235783Skib } 568235783Skib 569235783Skib dev->drw_unrhdr = new_unrhdr(1, INT_MAX, NULL); 570235783Skib if (dev->drw_unrhdr == NULL) { 571235783Skib DRM_ERROR("Couldn't allocate drawable number allocator\n"); 572235783Skib retcode = ENOMEM; 573235783Skib goto error; 574235783Skib } 575235783Skib 576235783Skib if (dev->driver->driver_features & DRIVER_GEM) { 577235783Skib retcode = drm_gem_init(dev); 578235783Skib if (retcode != 0) { 579235783Skib DRM_ERROR("Cannot initialize graphics execution " 580235783Skib "manager (GEM)\n"); 581235783Skib goto error1; 582235783Skib } 583235783Skib } 584235783Skib 585235783Skib if (dev->driver->load != NULL) { 586235783Skib DRM_LOCK(dev); 587235783Skib /* Shared code returns -errno. */ 588235783Skib retcode = -dev->driver->load(dev, 589235783Skib dev->id_entry->driver_private); 590235783Skib if (pci_enable_busmaster(dev->device)) 591235783Skib DRM_ERROR("Request to enable bus-master failed.\n"); 592235783Skib DRM_UNLOCK(dev); 593235783Skib if (retcode != 0) 594254821Sdumbbell goto error1; 595235783Skib } 596235783Skib 597235783Skib DRM_INFO("Initialized %s %d.%d.%d %s\n", 598235783Skib dev->driver->name, 599235783Skib dev->driver->major, 600235783Skib dev->driver->minor, 601235783Skib dev->driver->patchlevel, 602235783Skib dev->driver->date); 603235783Skib 604235783Skib return 0; 605235783Skib 606235783Skiberror1: 607235783Skib delete_unrhdr(dev->drw_unrhdr); 608254821Sdumbbell drm_gem_destroy(dev); 609235783Skiberror: 610254821Sdumbbell drm_ctxbitmap_cleanup(dev); 611235783Skib drm_sysctl_cleanup(dev); 612235783Skib DRM_LOCK(dev); 613235783Skib drm_lastclose(dev); 614235783Skib DRM_UNLOCK(dev); 615235783Skib if (dev->devnode != NULL) 616235783Skib destroy_dev(dev->devnode); 617235783Skib 618235783Skib mtx_destroy(&dev->drw_lock); 619235783Skib mtx_destroy(&dev->vbl_lock); 620235783Skib mtx_destroy(&dev->irq_lock); 621235783Skib mtx_destroy(&dev->dev_lock); 622235783Skib mtx_destroy(&dev->event_lock); 623235783Skib sx_destroy(&dev->dev_struct_lock); 624235783Skib 625235783Skib return retcode; 626235783Skib} 627235783Skib 628235783Skibstatic void drm_unload(struct drm_device *dev) 629235783Skib{ 630235783Skib int i; 631235783Skib 632235783Skib DRM_DEBUG("\n"); 633235783Skib 634235783Skib drm_sysctl_cleanup(dev); 635235783Skib if (dev->devnode != NULL) 636235783Skib destroy_dev(dev->devnode); 637235783Skib 638235783Skib drm_ctxbitmap_cleanup(dev); 639235783Skib 640235783Skib if (dev->driver->driver_features & DRIVER_GEM) 641235783Skib drm_gem_destroy(dev); 642235783Skib 643235783Skib if (dev->agp && dev->agp->mtrr) { 644235783Skib int __unused retcode; 645235783Skib 646235783Skib retcode = drm_mtrr_del(0, dev->agp->info.ai_aperture_base, 647235783Skib dev->agp->info.ai_aperture_size, DRM_MTRR_WC); 648235783Skib DRM_DEBUG("mtrr_del = %d", retcode); 649235783Skib } 650235783Skib 651235783Skib drm_vblank_cleanup(dev); 652235783Skib 653235783Skib DRM_LOCK(dev); 654235783Skib drm_lastclose(dev); 655235783Skib DRM_UNLOCK(dev); 656235783Skib 657235783Skib /* Clean up PCI resources allocated by drm_bufs.c. We're not really 658235783Skib * worried about resource consumption while the DRM is inactive (between 659235783Skib * lastclose and firstopen or unload) because these aren't actually 660235783Skib * taking up KVA, just keeping the PCI resource allocated. 661235783Skib */ 662235783Skib for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) { 663235783Skib if (dev->pcir[i] == NULL) 664235783Skib continue; 665235783Skib bus_release_resource(dev->device, SYS_RES_MEMORY, 666235783Skib dev->pcirid[i], dev->pcir[i]); 667235783Skib dev->pcir[i] = NULL; 668235783Skib } 669235783Skib 670235783Skib if (dev->agp) { 671235783Skib free(dev->agp, DRM_MEM_AGPLISTS); 672235783Skib dev->agp = NULL; 673235783Skib } 674235783Skib 675235783Skib if (dev->driver->unload != NULL) { 676235783Skib DRM_LOCK(dev); 677235783Skib dev->driver->unload(dev); 678235783Skib DRM_UNLOCK(dev); 679235783Skib } 680235783Skib 681235783Skib delete_unrhdr(dev->drw_unrhdr); 682235783Skib delete_unrhdr(dev->map_unrhdr); 683235783Skib 684235783Skib drm_mem_uninit(); 685235783Skib 686235783Skib if (pci_disable_busmaster(dev->device)) 687235783Skib DRM_ERROR("Request to disable bus-master failed.\n"); 688235783Skib 689235783Skib mtx_destroy(&dev->drw_lock); 690235783Skib mtx_destroy(&dev->vbl_lock); 691235783Skib mtx_destroy(&dev->irq_lock); 692235783Skib mtx_destroy(&dev->dev_lock); 693235783Skib mtx_destroy(&dev->event_lock); 694235783Skib sx_destroy(&dev->dev_struct_lock); 695235783Skib} 696235783Skib 697235783Skibint drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv) 698235783Skib{ 699235783Skib struct drm_version *version = data; 700235783Skib int len; 701235783Skib 702235783Skib#define DRM_COPY( name, value ) \ 703235783Skib len = strlen( value ); \ 704235783Skib if ( len > name##_len ) len = name##_len; \ 705235783Skib name##_len = strlen( value ); \ 706235783Skib if ( len && name ) { \ 707235783Skib if ( DRM_COPY_TO_USER( name, value, len ) ) \ 708235783Skib return EFAULT; \ 709235783Skib } 710235783Skib 711235783Skib version->version_major = dev->driver->major; 712235783Skib version->version_minor = dev->driver->minor; 713235783Skib version->version_patchlevel = dev->driver->patchlevel; 714235783Skib 715235783Skib DRM_COPY(version->name, dev->driver->name); 716235783Skib DRM_COPY(version->date, dev->driver->date); 717235783Skib DRM_COPY(version->desc, dev->driver->desc); 718235783Skib 719235783Skib return 0; 720235783Skib} 721235783Skib 722235783Skibint 723235783Skibdrm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) 724235783Skib{ 725235783Skib struct drm_device *dev; 726235783Skib int retcode; 727235783Skib 728235783Skib dev = kdev->si_drv1; 729235783Skib if (dev == NULL) 730235783Skib return (ENXIO); 731235783Skib 732235783Skib DRM_DEBUG("open_count = %d\n", dev->open_count); 733235783Skib 734235783Skib retcode = drm_open_helper(kdev, flags, fmt, p, dev); 735235783Skib 736235783Skib if (retcode == 0) { 737235783Skib atomic_inc(&dev->counts[_DRM_STAT_OPENS]); 738235783Skib DRM_LOCK(dev); 739235783Skib mtx_lock(&Giant); 740235783Skib device_busy(dev->device); 741235783Skib mtx_unlock(&Giant); 742235783Skib if (!dev->open_count++) 743235783Skib retcode = drm_firstopen(dev); 744235783Skib DRM_UNLOCK(dev); 745235783Skib } 746235783Skib 747235783Skib return (retcode); 748235783Skib} 749235783Skib 750235783Skibvoid drm_close(void *data) 751235783Skib{ 752235783Skib struct drm_file *file_priv = data; 753235783Skib struct drm_device *dev = file_priv->dev; 754235783Skib int retcode = 0; 755235783Skib 756235783Skib DRM_DEBUG("open_count = %d\n", dev->open_count); 757235783Skib 758235783Skib DRM_LOCK(dev); 759235783Skib 760235783Skib if (dev->driver->preclose != NULL) 761235783Skib dev->driver->preclose(dev, file_priv); 762235783Skib 763235783Skib /* ======================================================== 764235783Skib * Begin inline drm_release 765235783Skib */ 766235783Skib 767235783Skib DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", 768235783Skib DRM_CURRENTPID, (long)dev->device, dev->open_count); 769235783Skib 770235783Skib if (dev->driver->driver_features & DRIVER_GEM) 771235783Skib drm_gem_release(dev, file_priv); 772235783Skib 773235783Skib if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) 774235783Skib && dev->lock.file_priv == file_priv) { 775235783Skib DRM_DEBUG("Process %d dead, freeing lock for context %d\n", 776235783Skib DRM_CURRENTPID, 777235783Skib _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); 778235783Skib if (dev->driver->reclaim_buffers_locked != NULL) 779235783Skib dev->driver->reclaim_buffers_locked(dev, file_priv); 780235783Skib 781235783Skib drm_lock_free(&dev->lock, 782235783Skib _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); 783254792Sdumbbell 784235783Skib /* FIXME: may require heavy-handed reset of 785235783Skib hardware at this point, possibly 786235783Skib processed via a callback to the X 787235783Skib server. */ 788235783Skib } else if (dev->driver->reclaim_buffers_locked != NULL && 789235783Skib dev->lock.hw_lock != NULL) { 790235783Skib /* The lock is required to reclaim buffers */ 791235783Skib for (;;) { 792235783Skib if (!dev->lock.hw_lock) { 793235783Skib /* Device has been unregistered */ 794235783Skib retcode = EINTR; 795235783Skib break; 796235783Skib } 797235783Skib if (drm_lock_take(&dev->lock, DRM_KERNEL_CONTEXT)) { 798235783Skib dev->lock.file_priv = file_priv; 799235783Skib dev->lock.lock_time = jiffies; 800235783Skib atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); 801235783Skib break; /* Got lock */ 802235783Skib } 803235783Skib /* Contention */ 804235783Skib retcode = DRM_LOCK_SLEEP(dev, &dev->lock.lock_queue, 805235783Skib PCATCH, "drmlk2", 0); 806235783Skib if (retcode) 807235783Skib break; 808235783Skib } 809235783Skib if (retcode == 0) { 810235783Skib dev->driver->reclaim_buffers_locked(dev, file_priv); 811235783Skib drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT); 812235783Skib } 813235783Skib } 814235783Skib 815235783Skib if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && 816235783Skib !dev->driver->reclaim_buffers_locked) 817235783Skib drm_reclaim_buffers(dev, file_priv); 818235783Skib 819235783Skib funsetown(&dev->buf_sigio); 820235783Skib seldrain(&file_priv->event_poll); 821235783Skib 822235783Skib if (dev->driver->postclose != NULL) 823235783Skib dev->driver->postclose(dev, file_priv); 824235783Skib TAILQ_REMOVE(&dev->files, file_priv, link); 825235783Skib free(file_priv, DRM_MEM_FILES); 826235783Skib 827235783Skib /* ======================================================== 828235783Skib * End inline drm_release 829235783Skib */ 830235783Skib 831235783Skib atomic_inc(&dev->counts[_DRM_STAT_CLOSES]); 832235783Skib mtx_lock(&Giant); 833235783Skib device_unbusy(dev->device); 834235783Skib mtx_unlock(&Giant); 835235783Skib if (--dev->open_count == 0) { 836235783Skib retcode = drm_lastclose(dev); 837235783Skib } 838235783Skib 839235783Skib DRM_UNLOCK(dev); 840235783Skib} 841235783Skib 842239375Skibextern drm_ioctl_desc_t drm_compat_ioctls[]; 843239375Skib 844235783Skib/* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. 845235783Skib */ 846254792Sdumbbellint drm_ioctl(struct cdev *kdev, u_long cmd, caddr_t data, int flags, 847235783Skib DRM_STRUCTPROC *p) 848235783Skib{ 849235783Skib struct drm_device *dev = drm_get_device_from_kdev(kdev); 850235783Skib int retcode = 0; 851235783Skib drm_ioctl_desc_t *ioctl; 852235783Skib int (*func)(struct drm_device *dev, void *data, struct drm_file *file_priv); 853235783Skib int nr = DRM_IOCTL_NR(cmd); 854235783Skib int is_driver_ioctl = 0; 855235783Skib struct drm_file *file_priv; 856235783Skib 857235783Skib retcode = devfs_get_cdevpriv((void **)&file_priv); 858235783Skib if (retcode != 0) { 859235783Skib DRM_ERROR("can't find authenticator\n"); 860235783Skib return EINVAL; 861235783Skib } 862235783Skib 863235783Skib atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); 864235783Skib ++file_priv->ioctl_count; 865235783Skib 866235783Skib DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", 867235783Skib DRM_CURRENTPID, cmd, nr, (long)dev->device, 868235783Skib file_priv->authenticated); 869235783Skib 870235783Skib switch (cmd) { 871235783Skib case FIONBIO: 872235783Skib case FIOASYNC: 873235783Skib return 0; 874235783Skib 875235783Skib case FIOSETOWN: 876235783Skib return fsetown(*(int *)data, &dev->buf_sigio); 877235783Skib 878235783Skib case FIOGETOWN: 879235783Skib *(int *) data = fgetown(&dev->buf_sigio); 880235783Skib return 0; 881235783Skib } 882235783Skib 883235783Skib if (IOCGROUP(cmd) != DRM_IOCTL_BASE) { 884235783Skib DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd)); 885235783Skib return EINVAL; 886235783Skib } 887235783Skib 888239375Skib#ifdef COMPAT_FREEBSD32 889239375Skib /* 890239375Skib * Called whenever a 32-bit process running under a 64-bit 891239375Skib * kernel performs an ioctl on /dev/drm. 892239375Skib */ 893239375Skib if (SV_CURPROC_FLAG(SV_ILP32) && drm_compat_ioctls[nr].func != NULL) 894239375Skib /* 895239375Skib * Assume that ioctls without an explicit compat 896239375Skib * routine will just work. This may not always be a 897239375Skib * good assumption, but it's better than always 898239375Skib * failing. 899239375Skib */ 900239375Skib ioctl = &drm_compat_ioctls[nr]; 901239375Skib else 902239375Skib#endif 903239375Skib ioctl = &drm_ioctls[nr]; 904235783Skib /* It's not a core DRM ioctl, try driver-specific. */ 905235783Skib if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) { 906235783Skib /* The array entries begin at DRM_COMMAND_BASE ioctl nr */ 907235783Skib nr -= DRM_COMMAND_BASE; 908275209Srea if (nr >= dev->driver->max_ioctl) { 909235783Skib DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n", 910235783Skib nr, dev->driver->max_ioctl); 911235783Skib return EINVAL; 912235783Skib } 913239375Skib#ifdef COMPAT_FREEBSD32 914239375Skib if (SV_CURPROC_FLAG(SV_ILP32) && 915239375Skib nr < *dev->driver->compat_ioctls_nr && 916239375Skib dev->driver->compat_ioctls[nr].func != NULL) 917239375Skib ioctl = &dev->driver->compat_ioctls[nr]; 918239375Skib else 919239375Skib#endif 920239375Skib ioctl = &dev->driver->ioctls[nr]; 921235783Skib is_driver_ioctl = 1; 922235783Skib } 923235783Skib func = ioctl->func; 924235783Skib 925235783Skib if (func == NULL) { 926235783Skib DRM_DEBUG("no function\n"); 927235783Skib return EINVAL; 928235783Skib } 929235783Skib 930235783Skib if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) || 931235783Skib ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) || 932235783Skib ((ioctl->flags & DRM_MASTER) && !file_priv->master)) 933235783Skib return EACCES; 934235783Skib 935235783Skib if (is_driver_ioctl) { 936235783Skib if ((ioctl->flags & DRM_UNLOCKED) == 0) 937235783Skib DRM_LOCK(dev); 938235783Skib /* shared code returns -errno */ 939235783Skib retcode = -func(dev, data, file_priv); 940235783Skib if ((ioctl->flags & DRM_UNLOCKED) == 0) 941235783Skib DRM_UNLOCK(dev); 942235783Skib } else { 943235783Skib retcode = func(dev, data, file_priv); 944235783Skib } 945235783Skib 946235783Skib if (retcode != 0) 947235783Skib DRM_DEBUG(" returning %d\n", retcode); 948235783Skib if (retcode != 0 && 949235783Skib (drm_debug_flag & DRM_DEBUGBITS_FAILED_IOCTL) != 0) { 950235783Skib printf( 951235783Skib"pid %d, cmd 0x%02lx, nr 0x%02x/%1d, dev 0x%lx, auth %d, res %d\n", 952235783Skib DRM_CURRENTPID, cmd, nr, is_driver_ioctl, (long)dev->device, 953235783Skib file_priv->authenticated, retcode); 954235783Skib } 955235783Skib 956235783Skib return retcode; 957235783Skib} 958235783Skib 959235783Skibdrm_local_map_t *drm_getsarea(struct drm_device *dev) 960235783Skib{ 961235783Skib drm_local_map_t *map; 962235783Skib 963235783Skib DRM_LOCK_ASSERT(dev); 964235783Skib TAILQ_FOREACH(map, &dev->maplist, link) { 965235783Skib if (map->type == _DRM_SHM && (map->flags & _DRM_CONTAINS_LOCK)) 966235783Skib return map; 967235783Skib } 968235783Skib 969235783Skib return NULL; 970235783Skib} 971235783Skib 972235783Skibint 973235783Skibdrm_add_busid_modesetting(struct drm_device *dev, struct sysctl_ctx_list *ctx, 974235783Skib struct sysctl_oid *top) 975235783Skib{ 976235783Skib struct sysctl_oid *oid; 977235783Skib 978235783Skib snprintf(dev->busid_str, sizeof(dev->busid_str), 979235783Skib "pci:%04x:%02x:%02x.%d", dev->pci_domain, dev->pci_bus, 980235783Skib dev->pci_slot, dev->pci_func); 981235783Skib oid = SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(top), OID_AUTO, "busid", 982235783Skib CTLFLAG_RD, dev->busid_str, 0, NULL); 983235783Skib if (oid == NULL) 984235783Skib return (ENOMEM); 985235783Skib dev->modesetting = (dev->driver->driver_features & DRIVER_MODESET) != 0; 986235783Skib oid = SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(top), OID_AUTO, 987235783Skib "modesetting", CTLFLAG_RD, &dev->modesetting, 0, NULL); 988235783Skib if (oid == NULL) 989235783Skib return (ENOMEM); 990235783Skib 991235783Skib return (0); 992235783Skib} 993235783Skib 994247835Skibstatic int 995247835Skibdrm_mmap_single(struct cdev *kdev, vm_ooffset_t *offset, vm_size_t size, 996247835Skib struct vm_object **obj_res, int nprot) 997247835Skib{ 998247835Skib struct drm_device *dev; 999247835Skib 1000247835Skib dev = drm_get_device_from_kdev(kdev); 1001254822Sdumbbell if (dev->drm_ttm_bdev != NULL) { 1002254822Sdumbbell return (ttm_bo_mmap_single(dev->drm_ttm_bdev, offset, size, 1003254822Sdumbbell obj_res, nprot)); 1004254822Sdumbbell } else if ((dev->driver->driver_features & DRIVER_GEM) != 0) { 1005247835Skib return (drm_gem_mmap_single(dev, offset, size, obj_res, nprot)); 1006247835Skib } else { 1007247835Skib return (ENODEV); 1008247835Skib } 1009247835Skib} 1010247835Skib 1011235783Skib#if DRM_LINUX 1012235783Skib 1013235783Skib#include <sys/sysproto.h> 1014235783Skib 1015235783SkibMODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1); 1016235783Skib 1017235783Skib#define LINUX_IOCTL_DRM_MIN 0x6400 1018235783Skib#define LINUX_IOCTL_DRM_MAX 0x64ff 1019235783Skib 1020235783Skibstatic linux_ioctl_function_t drm_linux_ioctl; 1021254792Sdumbbellstatic struct linux_ioctl_handler drm_handler = {drm_linux_ioctl, 1022235783Skib LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX}; 1023235783Skib 1024235783Skib/* The bits for in/out are switched on Linux */ 1025235783Skib#define LINUX_IOC_IN IOC_OUT 1026235783Skib#define LINUX_IOC_OUT IOC_IN 1027235783Skib 1028235783Skibstatic int 1029235783Skibdrm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args) 1030235783Skib{ 1031235783Skib int error; 1032235783Skib int cmd = args->cmd; 1033235783Skib 1034235783Skib args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT); 1035235783Skib if (cmd & LINUX_IOC_IN) 1036235783Skib args->cmd |= IOC_IN; 1037235783Skib if (cmd & LINUX_IOC_OUT) 1038235783Skib args->cmd |= IOC_OUT; 1039254792Sdumbbell 1040235783Skib error = ioctl(p, (struct ioctl_args *)args); 1041235783Skib 1042235783Skib return error; 1043235783Skib} 1044235783Skib#endif /* DRM_LINUX */ 1045235783Skib 1046254792Sdumbbell 1047254792Sdumbbellstatic int 1048254792Sdumbbelldrm_core_init(void *arg) 1049254792Sdumbbell{ 1050254792Sdumbbell 1051254792Sdumbbell drm_global_init(); 1052254792Sdumbbell 1053254792Sdumbbell#if DRM_LINUX 1054254792Sdumbbell linux_ioctl_register_handler(&drm_handler); 1055254792Sdumbbell#endif /* DRM_LINUX */ 1056254792Sdumbbell 1057254792Sdumbbell DRM_INFO("Initialized %s %d.%d.%d %s\n", 1058254792Sdumbbell CORE_NAME, CORE_MAJOR, CORE_MINOR, CORE_PATCHLEVEL, CORE_DATE); 1059254792Sdumbbell return 0; 1060254792Sdumbbell} 1061254792Sdumbbell 1062254792Sdumbbellstatic void 1063254792Sdumbbelldrm_core_exit(void *arg) 1064254792Sdumbbell{ 1065254792Sdumbbell 1066254792Sdumbbell#if DRM_LINUX 1067254792Sdumbbell linux_ioctl_unregister_handler(&drm_handler); 1068254792Sdumbbell#endif /* DRM_LINUX */ 1069254792Sdumbbell 1070254792Sdumbbell drm_global_release(); 1071254792Sdumbbell} 1072254792Sdumbbell 1073254792SdumbbellSYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 1074254792Sdumbbell drm_core_init, NULL); 1075254792SdumbbellSYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 1076254792Sdumbbell drm_core_exit, NULL); 1077254792Sdumbbell 1078235783Skibbool 1079235783Skibdmi_check_system(const struct dmi_system_id *sysid) 1080235783Skib{ 1081235783Skib 1082235783Skib /* XXXKIB */ 1083235783Skib return (false); 1084235783Skib} 1085