renesas/drm.git - libdrm, cloned from git://anongit.freedesktop.org/mesa/drm

diff options

Diffstat (limited to 'bsd')

0 files changed, 0 insertions, 0 deletions

/* drm_drv.h -- Generic driver template -*- linux-c -*- * Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com */ /*- * Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas. * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Authors: * Rickard E. (Rik) Faith <faith@valinux.com> * Gareth Hughes <gareth@valinux.com> * */ #include "drmP.h" #include "drm.h" #include "drm_sarea.h" #ifdef DRM_DEBUG_DEFAULT_ON int drm_debug_flag = 1; #else int drm_debug_flag = 0; #endif static int drm_load(drm_device_t *dev); static void drm_unload(drm_device_t *dev); static drm_pci_id_list_t *drm_find_description(int vendor, int device, drm_pci_id_list_t *idlist); #ifdef __FreeBSD__ #define DRIVER_SOFTC(unit) \ ((drm_device_t *)devclass_get_softc(drm_devclass, unit)) MODULE_VERSION(drm, 1); MODULE_DEPEND(drm, agp, 1, 1, 1); MODULE_DEPEND(drm, pci, 1, 1, 1); #if __FreeBSD_version > 502127 MODULE_DEPEND(drm, mem, 1, 1, 1); #endif #endif /* __FreeBSD__ */ #if defined(__NetBSD__) || defined(__OpenBSD__) #define DRIVER_SOFTC(unit) \ ((drm_device_t *)device_lookup(&drm_cd, unit)) #endif /* __NetBSD__ || __OpenBSD__ */ static drm_ioctl_desc_t drm_ioctls[256] = { [DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { drm_version, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { drm_getunique, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { drm_getmagic, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY}, [DRM_IOCTL_NR(DRM_IOCTL_GET_MAP)] = { drm_getmap, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT)] = { drm_getclient, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)] = { drm_getstats, 0 }, [DRM_IOCTL_NR(DRM_IOCTL_SET_VERSION)] = { drm_setversion, DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)] = { drm_rmmap_ioctl, DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = { drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = { drm_getsareactx, DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { drm_addctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { drm_getctx, DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { drm_resctx, DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { drm_lock, DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { drm_unlock, DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { drm_noop, DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { drm_addbufs_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { drm_markbufs, DRM_AUTH|DRM_MASTER }, [DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { drm_infobufs, DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { drm_mapbufs, DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { drm_freebufs, DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_DMA)] = { drm_dma, DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = { drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = { drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = { drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = { drm_agp_info_ioctl, DRM_AUTH }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = { drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = { drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = { drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = { drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)] = { drm_sg_alloc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)] = { drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY }, [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK)] = { drm_wait_vblank, 0 }, }; #ifdef __FreeBSD__ static struct cdevsw drm_cdevsw = { #if __FreeBSD_version >= 502103 .d_version = D_VERSION, #endif .d_open = drm_open, .d_close = drm_close, .d_read = drm_read, .d_ioctl = drm_ioctl, .d_poll = drm_poll, .d_mmap = drm_mmap, .d_name = "drm", #if __FreeBSD_version >= 502103 .d_flags = D_TRACKCLOSE | D_NEEDGIANT, #else .d_maj = 145, .d_flags = D_TRACKCLOSE, #endif #if __FreeBSD_version < 500000 .d_bmaj = -1 #endif }; int drm_probe(device_t dev, drm_pci_id_list_t *idlist) { drm_pci_id_list_t *id_entry; int vendor, device; #if __FreeBSD_version < 700010 device_t realdev; if (!strcmp(device_get_name(dev), "drmsub")) realdev = device_get_parent(dev); else realdev = dev; vendor = pci_get_vendor(realdev); device = pci_get_device(realdev); #else vendor = pci_get_vendor(dev); device = pci_get_device(dev); #endif id_entry = drm_find_description(vendor, device, idlist); if (id_entry != NULL) { device_set_desc(dev, id_entry->name); return 0; } return ENXIO; } int drm_attach(device_t nbdev, drm_pci_id_list_t *idlist) { drm_device_t *dev; drm_pci_id_list_t *id_entry; int unit; unit = device_get_unit(nbdev); dev = device_get_softc(nbdev); #if __FreeBSD_version < 700010 if (!strcmp(device_get_name(nbdev), "drmsub")) dev->device = device_get_parent(nbdev); else dev->device = nbdev; #else dev->device = nbdev; #endif dev->devnode = make_dev(&drm_cdevsw, unit, DRM_DEV_UID, DRM_DEV_GID, DRM_DEV_MODE, "dri/card%d", unit); #if __FreeBSD_version >= 500000 mtx_init(&dev->dev_lock, "drm device", NULL, MTX_DEF); #endif id_entry = drm_find_description(pci_get_vendor(dev->device), pci_get_device(dev->device), idlist); dev->id_entry = id_entry; return drm_load(dev); } int drm_detach(device_t dev) { drm_unload(device_get_softc(dev)); return 0; } #ifndef DRM_DEV_NAME #define DRM_DEV_NAME "drm" #endif devclass_t drm_devclass; #elif defined(__NetBSD__) || defined(__OpenBSD__) static struct cdevsw drm_cdevsw = { drm_open, drm_close, drm_read, nowrite, drm_ioctl, nostop, notty, drm_poll, drm_mmap, nokqfilter, D_TTY }; int drm_refcnt = 0; #if defined(__NetBSD__) && __NetBSD_Version__ >= 106080000 MOD_DEV("drm", DRIVER_NAME, NULL, -1, &drm_cdevsw, CDEV_MAJOR); #else MOD_DEV("drm", LM_DT_CHAR, CDEV_MAJOR, &drm_cdevsw); #endif int drm_lkmentry(struct lkm_table *lkmtp, int cmd, int ver); static int drm_lkmhandle(struct lkm_table *lkmtp, int cmd); int drm_modprobe(void); int drm_probe(struct pci_attach_args *pa); void drm_attach(struct pci_attach_args *pa, dev_t kdev); int drm_lkmentry(struct lkm_table *lkmtp, int cmd, int ver) { DISPATCH(lkmtp, cmd, ver, drm_lkmhandle, drm_lkmhandle, drm_lkmhandle); } static int drm_lkmhandle(struct lkm_table *lkmtp, int cmd) { int error = 0; switch(cmd) { case LKM_E_LOAD: if (lkmexists(lkmtp)) return EEXIST; if(drm_modprobe()) return 0; return 1; case LKM_E_UNLOAD: if (drm_refcnt > 0) return (EBUSY); break; case LKM_E_STAT: break; default: error = EIO; break; } return error; } int drm_modprobe(void) { struct pci_attach_args pa; int error; error = pci_find_device(&pa, drm_probe, idlist); if (error != 0) drm_attach(&pa, 0); return error; } int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t idlist) { const char *desc; drm_pci_id_list_t *id_entry; id_entry = drm_find_description(PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id), idlist); if (id_entry != NULL) { return 1; } return 0; } void drm_attach(struct pci_attach_args *pa, dev_t kdev, drm_pci_id_list_t *idlist) { int i; drm_device_t *dev; drm_pci_id_list_t *id_entry; config_makeroom(kdev, &drm_cd); drm_cd.cd_devs[(kdev)] = malloc(sizeof(drm_device_t), M_DRM, M_WAITOK); dev = DRIVER_SOFTC(kdev); memset(dev, 0, sizeof(drm_device_t)); memcpy(&dev->pa, pa, sizeof(dev->pa)); dev->irq = pa->pa_intrline; dev->pci_domain = 0; dev->pci_bus = pa->pa_bus; dev->pci_slot = pa->pa_device; dev->pci_func = pa->pa_function; dev->dma_tag = pa->pa_dmat; id_entry = drm_find_description(PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id), idlist); dev->driver.pci_id_entry = id_entry; DRM_INFO("%s", id_entry->name); drm_load(dev); } int drm_detach(struct device *self, int flags) { drm_unload((drm_device_t *)self); return 0; } int drm_activate(struct device *self, enum devact act) { switch (act) { case DVACT_ACTIVATE: return (EOPNOTSUPP); break; case DVACT_DEACTIVATE: /* FIXME */ break; } return (0); } #endif /* __NetBSD__ || __OpenBSD__ */ drm_pci_id_list_t *drm_find_description(int vendor, int device, drm_pci_id_list_t *idlist) { int i = 0; for (i = 0; idlist[i].vendor != 0; i++) { if ((idlist[i].vendor == vendor) && (idlist[i].device == device)) { return &idlist[i]; } } return NULL; } static int drm_firstopen(drm_device_t *dev) { drm_local_map_t *map; int i; DRM_SPINLOCK_ASSERT(&dev->dev_lock); /* prebuild the SAREA */ i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, _DRM_CONTAINS_LOCK, &map); if (i != 0) return i; if (dev->driver.firstopen) dev->driver.firstopen(dev); dev->buf_use = 0; if (dev->driver.use_dma) { i = drm_dma_setup(dev); if (i != 0) return i; } dev->counters = 6; dev->types[0] = _DRM_STAT_LOCK; dev->types[1] = _DRM_STAT_OPENS; dev->types[2] = _DRM_STAT_CLOSES; dev->types[3] = _DRM_STAT_IOCTLS; dev->types[4] = _DRM_STAT_LOCKS; dev->types[5] = _DRM_STAT_UNLOCKS; for ( i = 0 ; i < DRM_ARRAY_SIZE(dev->counts) ; i++ ) atomic_set( &dev->counts[i], 0 ); for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) { dev->magiclist[i].head = NULL; dev->magiclist[i].tail = NULL; } dev->lock.lock_queue = 0; dev->irq_enabled = 0; dev->context_flag = 0; dev->last_context = 0; dev->if_version = 0; #ifdef __FreeBSD__ dev->buf_sigio = NULL; #elif defined(__NetBSD__) || defined(__OpenBSD__) dev->buf_pgid = 0; #endif DRM_DEBUG( "\n" ); return 0; } static int drm_lastclose(drm_device_t *dev) { drm_magic_entry_t *pt, *next; drm_local_map_t *map, *mapsave; int i; DRM_SPINLOCK_ASSERT(&dev->dev_lock); DRM_DEBUG( "\n" ); if (dev->driver.lastclose != NULL) dev->driver.lastclose(dev); if (dev->irq_enabled) drm_irq_uninstall(dev); if ( dev->unique ) { free(dev->unique, M_DRM); dev->unique = NULL; dev->unique_len = 0; } /* Clear pid list */ for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) { for ( pt = dev->magiclist[i].head ; pt ; pt = next ) { next = pt->next; free(pt, M_DRM); } dev->magiclist[i].head = dev->magiclist[i].tail = NULL; } /* Clear AGP information */ if ( dev->agp ) { drm_agp_mem_t *entry; drm_agp_mem_t *nexte; /* Remove AGP resources, but leave dev->agp intact until * drm_unload is called. */ for ( entry = dev->agp->memory ; entry ; entry = nexte ) { nexte = entry->next; if ( entry->bound ) drm_agp_unbind_memory(entry->handle); drm_agp_free_memory(entry->handle); free(entry, M_DRM); } dev->agp->memory = NULL; if (dev->agp->acquired) drm_agp_release(dev); dev->agp->acquired = 0; dev->agp->enabled = 0; } if (dev->sg != NULL) { drm_sg_cleanup(dev->sg); dev->sg = NULL; } TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) { drm_rmmap(dev, map); } drm_dma_takedown(dev); if ( dev->lock.hw_lock ) { dev->lock.hw_lock = NULL; /* SHM removed */ dev->lock.filp = NULL; DRM_WAKEUP_INT((void *)&dev->lock.lock_queue); } return 0; } static int drm_load(drm_device_t *dev) { int retcode; DRM_DEBUG( "\n" ); dev->irq = pci_get_irq(dev->device); /* XXX Fix domain number (alpha hoses) */ dev->pci_domain = 0; dev->pci_bus = pci_get_bus(dev->device); dev->pci_slot = pci_get_slot(dev->device); dev->pci_func = pci_get_function(dev->device); dev->pci_vendor = pci_get_vendor(dev->device); dev->pci_device = pci_get_device(dev->device); TAILQ_INIT(&dev->maplist); drm_mem_init(); #ifdef __FreeBSD__ drm_sysctl_init(dev); #endif TAILQ_INIT(&dev->files); if (dev->driver.load != NULL) { DRM_LOCK(); retcode = dev->driver.load(dev, dev->id_entry->driver_private); DRM_UNLOCK(); if (retcode != 0) goto error; } if (dev->driver.use_agp) { if (drm_device_is_agp(dev)) dev->agp = drm_agp_init(); if (dev->driver.require_agp && dev->agp == NULL) { DRM_ERROR("Card isn't AGP, or couldn't initialize " "AGP.\n"); retcode = DRM_ERR(ENOMEM); goto error; } if (dev->agp != NULL) { if (drm_mtrr_add(dev->agp->info.ai_aperture_base, dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0) dev->agp->mtrr = 1; } } retcode = drm_ctxbitmap_init(dev); if (retcode != 0) { DRM_ERROR("Cannot allocate memory for context bitmap.\n"); goto error; } DRM_INFO("Initialized %s %d.%d.%d %s\n", dev->driver.name, dev->driver.major, dev->driver.minor, dev->driver.patchlevel, dev->driver.date); return 0; error: #ifdef __FreeBSD__ drm_sysctl_cleanup(dev); #endif DRM_LOCK(); drm_lastclose(dev); DRM_UNLOCK(); #ifdef __FreeBSD__ destroy_dev(dev->devnode); #if __FreeBSD_version >= 500000 mtx_destroy(&dev->dev_lock); #endif #endif return retcode; } static void drm_unload(drm_device_t *dev) { int i; DRM_DEBUG( "\n" ); #ifdef __FreeBSD__ drm_sysctl_cleanup(dev); destroy_dev(dev->devnode); #endif drm_ctxbitmap_cleanup(dev); if (dev->agp && dev->agp->mtrr) { int __unused retcode; retcode = drm_mtrr_del(0, dev->agp->info.ai_aperture_base, dev->agp->info.ai_aperture_size, DRM_MTRR_WC); DRM_DEBUG("mtrr_del = %d", retcode); } DRM_LOCK(); drm_lastclose(dev); DRM_UNLOCK(); /* Clean up PCI resources allocated by drm_bufs.c. We're not really * worried about resource consumption while the DRM is inactive (between * lastclose and firstopen or unload) because these aren't actually * taking up KVA, just keeping the PCI resource allocated. */ for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) { if (dev->pcir[i] == NULL) continue; bus_release_resource(dev->device, SYS_RES_MEMORY, dev->pcirid[i], dev->pcir[i]); dev->pcir[i] = NULL; } if ( dev->agp ) { free(dev->agp, M_DRM); dev->agp = NULL; } if (dev->driver.unload != NULL) dev->driver.unload(dev); drm_mem_uninit(); #if defined(__FreeBSD__) && __FreeBSD_version >= 500000 mtx_destroy(&dev->dev_lock); #endif } int drm_version(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_version_t version; int len; DRM_COPY_FROM_USER_IOCTL( version, (drm_version_t *)data, sizeof(version) ); #define DRM_COPY( name, value ) \ len = strlen( value ); \ if ( len > name##_len ) len = name##_len; \ name##_len = strlen( value ); \ if ( len && name ) { \ if ( DRM_COPY_TO_USER( name, value, len ) ) \ return DRM_ERR(EFAULT); \ } version.version_major = dev->driver.major; version.version_minor = dev->driver.minor; version.version_patchlevel = dev->driver.patchlevel; DRM_COPY(version.name, dev->driver.name); DRM_COPY(version.date, dev->driver.date); DRM_COPY(version.desc, dev->driver.desc); DRM_COPY_TO_USER_IOCTL( (drm_version_t *)data, version, sizeof(version) ); return 0; } int drm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) { drm_device_t *dev = NULL; int retcode = 0; dev = DRIVER_SOFTC(minor(kdev)); DRM_DEBUG( "open_count = %d\n", dev->open_count ); retcode = drm_open_helper(kdev, flags, fmt, p, dev); if ( !retcode ) { atomic_inc( &dev->counts[_DRM_STAT_OPENS] ); DRM_LOCK(); #ifdef __FreeBSD__ device_busy(dev->device); #endif if ( !dev->open_count++ ) retcode = drm_firstopen(dev); DRM_UNLOCK(); } return retcode; } int drm_close(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) { drm_file_t *priv; DRM_DEVICE; int retcode = 0; DRMFILE filp = (void *)(uintptr_t)(DRM_CURRENTPID); DRM_DEBUG( "open_count = %d\n", dev->open_count ); DRM_LOCK(); priv = drm_find_file_by_proc(dev, p); if (!priv) { DRM_UNLOCK(); DRM_ERROR("can't find authenticator\n"); return EINVAL; } if (dev->driver.preclose != NULL) dev->driver.preclose(dev, filp); /* ======================================================== * Begin inline drm_release */ #ifdef __FreeBSD__ DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n", DRM_CURRENTPID, (long)dev->device, dev->open_count ); #elif defined(__NetBSD__) || defined(__OpenBSD__) DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n", DRM_CURRENTPID, (long)&dev->device, dev->open_count); #endif if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) && dev->lock.filp == filp) { DRM_DEBUG("Process %d dead, freeing lock for context %d\n", DRM_CURRENTPID, _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); if (dev->driver.reclaim_buffers_locked != NULL) dev->driver.reclaim_buffers_locked(dev, filp); drm_lock_free(dev, &dev->lock.hw_lock->lock, _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); /* FIXME: may require heavy-handed reset of hardware at this point, possibly processed via a callback to the X server. */ } else if (dev->driver.reclaim_buffers_locked != NULL && dev->lock.hw_lock != NULL) { /* The lock is required to reclaim buffers */ for (;;) { if ( !dev->lock.hw_lock ) { /* Device has been unregistered */ retcode = DRM_ERR(EINTR); break; } if (drm_lock_take(&dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT)) { dev->lock.filp = filp; dev->lock.lock_time = jiffies; atomic_inc( &dev->counts[_DRM_STAT_LOCKS] ); break; /* Got lock */ } /* Contention */ #if defined(__FreeBSD__) && __FreeBSD_version > 500000 retcode = msleep((void *)&dev->lock.lock_queue, &dev->dev_lock, PZERO | PCATCH, "drmlk2", 0); #else retcode = tsleep((void *)&dev->lock.lock_queue, PZERO | PCATCH, "drmlk2", 0); #endif if (retcode) break; } if (retcode == 0) { dev->driver.reclaim_buffers_locked(dev, filp); drm_lock_free(dev, &dev->lock.hw_lock->lock, DRM_KERNEL_CONTEXT); } } if (dev->driver.use_dma && !dev->driver.reclaim_buffers_locked) drm_reclaim_buffers(dev, filp); #if defined (__FreeBSD__) && (__FreeBSD_version >= 500000) funsetown(&dev->buf_sigio); #elif defined(__FreeBSD__) funsetown(dev->buf_sigio); #elif defined(__NetBSD__) || defined(__OpenBSD__) dev->buf_pgid = 0; #endif /* __NetBSD__ || __OpenBSD__ */ if (--priv->refs == 0) { if (dev->driver.postclose != NULL) dev->driver.postclose(dev, priv); TAILQ_REMOVE(&dev->files, priv, link); free(priv, M_DRM); } /* ======================================================== * End inline drm_release */ atomic_inc( &dev->counts[_DRM_STAT_CLOSES] ); #ifdef __FreeBSD__ device_unbusy(dev->device); #endif if (--dev->open_count == 0) { retcode = drm_lastclose(dev); } DRM_UNLOCK(); return retcode; } /* drm_ioctl is called whenever a process performs an ioctl on /dev/drm. */ int drm_ioctl(struct cdev *kdev, u_long cmd, caddr_t data, int flags, DRM_STRUCTPROC *p) { DRM_DEVICE; int retcode = 0; drm_ioctl_desc_t *ioctl; int (*func)(DRM_IOCTL_ARGS); int nr = DRM_IOCTL_NR(cmd); int is_driver_ioctl = 0; drm_file_t *priv; DRMFILE filp = (DRMFILE)(uintptr_t)DRM_CURRENTPID; DRM_LOCK(); priv = drm_find_file_by_proc(dev, p); DRM_UNLOCK(); if (priv == NULL) { DRM_ERROR("can't find authenticator\n"); return EINVAL; } atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] ); ++priv->ioctl_count; #ifdef __FreeBSD__ DRM_DEBUG( "pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", DRM_CURRENTPID, cmd, nr, (long)dev->device, priv->authenticated ); #elif defined(__NetBSD__) || defined(__OpenBSD__) DRM_DEBUG( "pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", DRM_CURRENTPID, cmd, nr, (long)&dev->device, priv->authenticated ); #endif switch (cmd) { case FIONBIO: case FIOASYNC: return 0; #ifdef __FreeBSD__ case FIOSETOWN: return fsetown(*(int *)data, &dev->buf_sigio); case FIOGETOWN: #if (__FreeBSD_version >= 500000) *(int *) data = fgetown(&dev->buf_sigio); #else *(int *) data = fgetown(dev->buf_sigio); #endif return 0; #endif /* __FreeBSD__ */ #if defined(__NetBSD__) || defined(__OpenBSD__) case TIOCSPGRP: dev->buf_pgid = *(int *)data; return 0; case TIOCGPGRP: *(int *)data = dev->buf_pgid; return 0; #endif /* __NetBSD__ */ } if (IOCGROUP(cmd) != DRM_IOCTL_BASE) { DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd)); return EINVAL; } ioctl = &drm_ioctls[nr]; /* It's not a core DRM ioctl, try driver-specific. */ if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) { /* The array entries begin at DRM_COMMAND_BASE ioctl nr */ nr -= DRM_COMMAND_BASE; if (nr > dev->driver.max_ioctl) { DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n", nr, dev->driver.max_ioctl); return EINVAL; } ioctl = &dev->driver.ioctls[nr]; is_driver_ioctl = 1; } func = ioctl->func; if (func == NULL) { DRM_DEBUG( "no function\n" ); return EINVAL; } /* ioctl->master check should be against something in the filp set up * for the first opener, but it doesn't matter yet. */ if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) || ((ioctl->flags & DRM_AUTH) && !priv->authenticated) || ((ioctl->flags & DRM_MASTER) && !priv->master)) return EACCES; if (is_driver_ioctl) DRM_LOCK(); retcode = func(kdev, cmd, data, flags, p, filp); if (is_driver_ioctl) DRM_UNLOCK(); if (retcode != 0) DRM_DEBUG(" returning %d\n", retcode); return DRM_ERR(retcode); } #if DRM_LINUX #include <sys/sysproto.h> MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1); #define LINUX_IOCTL_DRM_MIN 0x6400 #define LINUX_IOCTL_DRM_MAX 0x64ff static linux_ioctl_function_t drm_linux_ioctl; static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl, LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX}; SYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE, linux_ioctl_register_handler, &drm_handler); SYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, linux_ioctl_unregister_handler, &drm_handler); /* The bits for in/out are switched on Linux */ #define LINUX_IOC_IN IOC_OUT #define LINUX_IOC_OUT IOC_IN static int drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args) { int error; int cmd = args->cmd; args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT); if (cmd & LINUX_IOC_IN) args->cmd |= IOC_IN; if (cmd & LINUX_IOC_OUT) args->cmd |= IOC_OUT; error = ioctl(p, (struct ioctl_args *)args); return error; } #endif /* DRM_LINUX */


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