/* 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 * Gareth Hughes * */ #include /* __FBSDID("$FreeBSD: src/sys/dev/drm/drm_drv.c,v 1.6 2006/09/07 23:04:47 anholt Exp $"); */ #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) \ (((unit)= 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__) const 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; drm_device_t *drm_units[DRM_MAXUNITS]; static int init_units = 1; int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist); void drm_attach(struct device *kdev, struct pci_attach_args *pa, drm_pci_id_list_t *idlist); int drm_probe(struct pci_attach_args *pa, drm_pci_id_list_t *idlist) { int unit; drm_pci_id_list_t *id_entry; /* first make sure there is place for the device */ for(unit=0; unitpa_id), PCI_PRODUCT(pa->pa_id), idlist); if (id_entry != NULL) { return 1; } return 0; } void drm_attach(struct device *kdev, struct pci_attach_args *pa, drm_pci_id_list_t *idlist) { int unit; drm_device_t *dev; drm_pci_id_list_t *id_entry; if(init_units) { for(unit=0; unitunit = unit; id_entry = drm_find_description(PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id), idlist); dev->id_entry = id_entry; dev->driver.id_entry = id_entry; dev->unique = NULL; dev->unique_len = 0; dev->if_version = 0; dev->flags = 0; dev->open_count = 0; dev->buf_use = 0; dev->counters = 0; /* dev->files : drm_load */ /* dev->magiclist : drm_firstopen */ /* dev->maplist : drm_load */ dev->context_sareas = NULL; dev->max_context = 0; DRM_SPININIT(dev->dev_lock, "drm device"); dev->dma = NULL; /* dev->irq : drm_load */ dev->irq_enabled = 0; dev->pa = *pa; dev->irqh = NULL; for(unit=0; unitpci_map_data[unit].mapped = 0; dev->pci_map_data[unit].maptype = pci_mapreg_type(dev->pa.pa_pc, dev->pa.pa_tag, PCI_MAPREG_START + unit*4); if(pci_mapreg_info(dev->pa.pa_pc, dev->pa.pa_tag, PCI_MAPREG_START + unit*4, dev->pci_map_data[unit].maptype, &(dev->pci_map_data[unit].base), &(dev->pci_map_data[unit].size), &(dev->pci_map_data[unit].flags))) { dev->pci_map_data[unit].base = 0; dev->pci_map_data[unit].size = 0; } if(dev->pci_map_data[unit].maptype == PCI_MAPREG_TYPE_MEM) dev->pci_map_data[unit].flags |= BUS_SPACE_MAP_LINEAR; } for(unit=0; unitagp_map_data[unit].mapped = 0; dev->agp_map_data[unit].maptype = PCI_MAPREG_TYPE_MEM; } dev->context_flag = 0; dev->last_context = 0; dev->vbl_queue = 0; dev->vbl_received = 0; dev->buf_pgid = 0; dev->sysctl = NULL; dev->agp = NULL; dev->sg = NULL; dev->ctx_bitmap = NULL; dev->dev_private = NULL; dev->agp_buffer_token = 0; dev->agp_buffer_map = 0; /* dev->unit - already done */ printf("\n"); DRM_INFO("%s (unit %d)\n", id_entry->name, dev->unit); drm_load(dev); } int drm_detach(struct device *self, int flags) { drm_device_t *dev = (drm_device_t*)self; drm_unload(dev); drm_units[dev->unit] = NULL; 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; #ifdef __FreeBSD__ drm_local_map_t *mapsave; #endif #ifdef __NetBSD__ struct drm_file *filep; #endif 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; } #ifdef __FreeBSD__ TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) { drm_rmmap(dev, map); } #elif defined(__NetBSD__) while ((map = TAILQ_FIRST(&dev->maplist)) != NULL) { drm_rmmap(dev, map); } for(i = 0; ipci_map_data[i].mapped > 1) { bus_space_unmap(dev->pci_map_data[i].maptype, dev->pci_map_data[i].bsh, dev->pci_map_data[i].size); dev->pci_map_data[i].mapped = 0; DRM_DEBUG("WARNING: had to unmap resource %d\n", i); } } #endif drm_dma_takedown(dev); DRM_DEBUG( "\n" ); if ( dev->lock.hw_lock ) { dev->lock.hw_lock = NULL; /* SHM removed */ dev->lock.filp = NULL; DRM_WAKEUP_INT((void *)&dev->lock.lock_queue); } #ifdef __NetBSD__ while ((filep = TAILQ_FIRST(&dev->files)) != NULL) { DRM_INFO("had to remove pid %d still in file list\n", (int) filep->pid); TAILQ_REMOVE(&dev->files, filep, link); free(filep, M_DRM); } #endif return 0; } static int drm_load(drm_device_t *dev) { int retcode; DRM_DEBUG( "\n" ); #ifdef __FreeBSD__ 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); #elif defined(__NetBSD__) dev->irq = dev->pa.pa_intrline; dev->pci_domain = 0; dev->pci_bus = dev->pa.pa_bus; dev->pci_slot = dev->pa.pa_device; dev->pci_func = dev->pa.pa_function; dev->pci_vendor = PCI_VENDOR(dev->pa.pa_id); dev->pci_device = PCI_PRODUCT(dev->pa.pa_id); #endif TAILQ_INIT(&dev->maplist); drm_mem_init(); drm_sysctl_init(dev); 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; } #ifndef DRM_NO_MTRR 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; } #endif } 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: drm_sysctl_cleanup(dev); DRM_LOCK(); drm_lastclose(dev); DRM_UNLOCK(); #ifdef __FreeBSD__ destroy_dev(dev->devnode); #if __FreeBSD_version >= 500000 mtx_destroy(&dev->dev_lock); #endif #endif #ifdef __NetBSD__ DRM_SPINUNINIT(&dev->dev_lock); #endif return retcode; } static void drm_unload(drm_device_t *dev) { int i; DRM_DEBUG( "\n" ); drm_sysctl_cleanup(dev); #ifdef __FreeBSD__ destroy_dev(dev->devnode); #endif drm_ctxbitmap_cleanup(dev); #if !defined(DRM_NO_MTRR) && !defined(DRM_NO_AGP) 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); } #endif 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. */ #ifdef __FreeBSD__ 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; } #elif defined(__NetBSD__) i = 0; for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) if (dev->pci_map_data[i].mapped != 0) { bus_space_unmap(dev->pa.pa_memt, dev->pci_map_data[i].bsh, dev->pci_map_data[i].size); dev->pci_map_data[i].mapped = 0; } #endif 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 #ifdef __NetBSD__ DRM_SPINUNINIT(&dev->dev_lock); #endif } int drm_version(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_version_t drmversion; int len; DRM_COPY_FROM_USER_IOCTL( drmversion, (drm_version_t *)data, sizeof(drmversion) ); #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); \ } drmversion.version_major = dev->driver.major; drmversion.version_minor = dev->driver.minor; drmversion.version_patchlevel = dev->driver.patchlevel; DRM_COPY(drmversion.name, dev->driver.name); DRM_COPY(drmversion.date, dev->driver.date); DRM_COPY(drmversion.desc, dev->driver.desc); DRM_COPY_TO_USER_IOCTL( (drm_version_t *)data, drmversion, sizeof(drmversion) ); return 0; } int drm_open(DRM_CDEV kdev, int flags, int fmt, DRM_STRUCTCDEVPROC *p) { drm_device_t *dev = NULL; int retcode = 0; dev = DRIVER_SOFTC(minor(kdev)); DRM_DEBUG( "open_count = %d\n", dev->open_count ); #ifdef __FreeBSD__ retcode = drm_open_helper(kdev, flags, fmt, p, dev); #elif defined(__NetBSD__) retcode = drm_open_helper(kdev, flags, fmt, p->l_proc, dev); #endif 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_pid(drm_device_t *dev, drm_file_t *priv, pid_t pid) { int retcode = 0; DRMFILE filp = (void *)(uintptr_t)(pid); 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 = ltsleep((void *)&dev->lock.lock_queue, PZERO | PCATCH, "drmlk2", 0, &dev->dev_lock); #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 (--priv->refs == 0) { if (dev->driver.postclose != NULL) dev->driver.postclose(dev, priv); TAILQ_REMOVE(&dev->files, priv, link); free(priv, M_DRM); } return retcode; } int drm_close(DRM_CDEV kdev, int flags, int fmt, DRM_STRUCTCDEVPROC *p) { drm_file_t *priv; DRM_DEVICE; int retcode = 0; DRM_DEBUG( "open_count = %d\n", dev->open_count ); DRM_LOCK(); #ifdef __FreeBSD__ priv = drm_find_file_by_proc(dev, p); #elif defined(__NetBSD__) priv = drm_find_file_by_proc(dev, p->l_proc); #endif if (!priv) { DRM_UNLOCK(); DRM_ERROR("can't find authenticator\n"); return EINVAL; } #ifdef __NetBSD__ /* On NetBSD, close will only be called once */ DRM_DEBUG("setting priv->refs %d to 1\n", (int)priv->refs); priv->refs = 1; DRM_DEBUG("setting open_count %d to 1\n", (int)dev->open_count); dev->open_count = 1; #endif retcode = drm_close_pid(dev, priv, DRM_CURRENTPID); #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__ */ 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(DRM_CDEV kdev, u_long cmd, void *data, int flags, DRM_STRUCTCDEVPROC *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(); #ifdef __FreeBSD__ priv = drm_find_file_by_proc(dev, p); #elif defined(__NetBSD__) priv = drm_find_file_by_proc(dev, p->l_proc); #endif 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 SIOCSPGRP: case TIOCSPGRP: case FIOSETOWN: return fsetown(p->l_proc, &dev->buf_pgid, cmd, data); case SIOCGPGRP: case TIOCGPGRP: case FIOGETOWN: return fgetown(p->l_proc, dev->buf_pgid, cmd, data); #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. */ #ifdef __FreeBSD__ if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) || #elif defined(__NetBSD__) if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p->l_proc)) || #endif ((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 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 */