diff options
Diffstat (limited to 'bsd-core/drm_drv.c')
| -rw-r--r-- | bsd-core/drm_drv.c | 839 |
1 files changed, 0 insertions, 839 deletions
diff --git a/bsd-core/drm_drv.c b/bsd-core/drm_drv.c deleted file mode 100644 index ce683a66..00000000 --- a/bsd-core/drm_drv.c +++ /dev/null @@ -1,839 +0,0 @@ -/*- - * 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> - * - */ - -/** @file drm_drv.c - * The catch-all file for DRM device support, including module setup/teardown, - * open/close, and ioctl dispatch. - */ - - -#include <sys/limits.h> -#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(struct drm_device *dev); -static void drm_unload(struct drm_device *dev); -static drm_pci_id_list_t *drm_find_description(int vendor, int device, - drm_pci_id_list_t *idlist); - -#define DRIVER_SOFTC(unit) \ - ((struct drm_device *)devclass_get_softc(drm_devclass, unit)) - -MODULE_VERSION(drm, 1); -MODULE_DEPEND(drm, agp, 1, 1, 1); -MODULE_DEPEND(drm, pci, 1, 1, 1); -MODULE_DEPEND(drm, mem, 1, 1, 1); - -static drm_ioctl_desc_t drm_ioctls[256] = { - DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0), - DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0), - DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0), - DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0), - DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0), - DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0), - DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY), - - DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - - DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH), - - DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH), - - DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH), - DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH), - - DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - - DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH), - DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH), - - DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH), - - DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH), - DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH), - DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH), - DRM_IOCTL_DEF(DRM_IOCTL_DMA, drm_dma, DRM_AUTH), - - DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - - DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - - DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), - DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, 0), - DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0), - DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_draw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), -}; - -static struct cdevsw drm_cdevsw = { - .d_version = D_VERSION, - .d_open = drm_open, - .d_read = drm_read, - .d_ioctl = drm_ioctl, - .d_poll = drm_poll, - .d_mmap = drm_mmap, - .d_name = "drm", - .d_flags = D_TRACKCLOSE -}; - -int drm_msi = 1; /* Enable by default. */ -TUNABLE_INT("hw.drm.msi", &drm_msi); - -static struct drm_msi_blacklist_entry drm_msi_blacklist[] = { - {0x8086, 0x2772}, /* Intel i945G */ \ - {0x8086, 0x27A2}, /* Intel i945GM */ \ - {0x8086, 0x27AE}, /* Intel i945GME */ \ - {0, 0} -}; - -static int drm_msi_is_blacklisted(int vendor, int device) -{ - int i = 0; - - for (i = 0; drm_msi_blacklist[i].vendor != 0; i++) { - if ((drm_msi_blacklist[i].vendor == vendor) && - (drm_msi_blacklist[i].device == device)) { - return 1; - } - } - - return 0; -} - -int drm_probe(device_t kdev, 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(kdev), "drmsub")) - realdev = device_get_parent(kdev); - else - realdev = kdev; - vendor = pci_get_vendor(realdev); - device = pci_get_device(realdev); -#else - vendor = pci_get_vendor(kdev); - device = pci_get_device(kdev); -#endif - - if (pci_get_class(kdev) != PCIC_DISPLAY - || pci_get_subclass(kdev) != PCIS_DISPLAY_VGA) - return ENXIO; - - id_entry = drm_find_description(vendor, device, idlist); - if (id_entry != NULL) { - if (!device_get_desc(kdev)) { - DRM_DEBUG("desc : %s\n", device_get_desc(kdev)); - device_set_desc(kdev, id_entry->name); - } - return 0; - } - - return ENXIO; -} - -int drm_attach(device_t kdev, drm_pci_id_list_t *idlist) -{ - struct drm_device *dev; - drm_pci_id_list_t *id_entry; - int unit, msicount; - - unit = device_get_unit(kdev); - dev = device_get_softc(kdev); - -#if __FreeBSD_version < 700010 - if (!strcmp(device_get_name(kdev), "drmsub")) - dev->device = device_get_parent(kdev); - else - dev->device = kdev; -#else - dev->device = kdev; -#endif - dev->devnode = make_dev(&drm_cdevsw, - unit, - DRM_DEV_UID, - DRM_DEV_GID, - DRM_DEV_MODE, - "dri/card%d", unit); - -#if __FreeBSD_version >= 700053 - dev->pci_domain = pci_get_domain(dev->device); -#else - dev->pci_domain = 0; -#endif - 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); - - if (drm_msi && - !drm_msi_is_blacklisted(dev->pci_vendor, dev->pci_device)) { - msicount = pci_msi_count(dev->device); - DRM_DEBUG("MSI count = %d\n", msicount); - if (msicount > 1) - msicount = 1; - - if (pci_alloc_msi(dev->device, &msicount) == 0) { - DRM_INFO("MSI enabled %d message(s)\n", msicount); - dev->msi_enabled = 1; - dev->irqrid = 1; - } - } - - dev->irqr = bus_alloc_resource_any(dev->device, SYS_RES_IRQ, - &dev->irqrid, RF_SHAREABLE); - if (!dev->irqr) { - return ENOENT; - } - - dev->irq = (int) rman_get_start(dev->irqr); - - mtx_init(&dev->dev_lock, "drmdev", NULL, MTX_DEF); - mtx_init(&dev->irq_lock, "drmirq", NULL, MTX_DEF); - mtx_init(&dev->vbl_lock, "drmvbl", NULL, MTX_DEF); - mtx_init(&dev->drw_lock, "drmdrw", NULL, MTX_DEF); - - id_entry = drm_find_description(dev->pci_vendor, - dev->pci_device, idlist); - dev->id_entry = id_entry; - - return drm_load(dev); -} - -int drm_detach(device_t kdev) -{ - struct drm_device *dev; - - dev = device_get_softc(kdev); - - drm_unload(dev); - - bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid, dev->irqr); - - if (dev->msi_enabled) { - pci_release_msi(dev->device); - DRM_INFO("MSI released\n"); - } - - return 0; -} - -#ifndef DRM_DEV_NAME -#define DRM_DEV_NAME "drm" -#endif - -devclass_t drm_devclass; - -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) || - (idlist[i].device == 0))) { - return &idlist[i]; - } - } - return NULL; -} - -static int drm_firstopen(struct drm_device *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 (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) { - i = drm_dma_setup(dev); - if (i != 0) - return i; - } - - 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; - - dev->buf_sigio = NULL; - - DRM_DEBUG("\n"); - - return 0; -} - -static int drm_lastclose(struct drm_device *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, DRM_MEM_DRIVER); - 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, DRM_MEM_MAGIC); - } - dev->magiclist[i].head = dev->magiclist[i].tail = NULL; - } - - DRM_UNLOCK(); - drm_drawable_free_all(dev); - DRM_LOCK(); - - /* 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, DRM_MEM_AGPLISTS); - } - 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) { - if (!(map->flags & _DRM_DRIVER)) - drm_rmmap(dev, map); - } - - drm_dma_takedown(dev); - if (dev->lock.hw_lock) { - dev->lock.hw_lock = NULL; /* SHM removed */ - dev->lock.file_priv = NULL; - DRM_WAKEUP_INT((void *)&dev->lock.lock_queue); - } - - return 0; -} - -static int drm_load(struct drm_device *dev) -{ - int i, retcode; - - DRM_DEBUG("\n"); - - TAILQ_INIT(&dev->maplist); - - drm_mem_init(); - drm_sysctl_init(dev); - TAILQ_INIT(&dev->files); - - 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); - - if (dev->driver->load != NULL) { - DRM_LOCK(); - /* Shared code returns -errno. */ - retcode = -dev->driver->load(dev, - dev->id_entry->driver_private); - if (pci_enable_busmaster(dev->device)) - DRM_ERROR("Request to enable bus-master failed.\n"); - DRM_UNLOCK(); - if (retcode != 0) - goto error; - } - - if (drm_core_has_AGP(dev)) { - if (drm_device_is_agp(dev)) - dev->agp = drm_agp_init(); - if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) && - dev->agp == NULL) { - DRM_ERROR("Card isn't AGP, or couldn't initialize " - "AGP.\n"); - retcode = 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; - } - - dev->drw_unrhdr = new_unrhdr(1, INT_MAX, NULL); - if (dev->drw_unrhdr == NULL) { - DRM_ERROR("Couldn't allocate drawable number allocator\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(); - destroy_dev(dev->devnode); - - mtx_destroy(&dev->drw_lock); - mtx_destroy(&dev->vbl_lock); - mtx_destroy(&dev->irq_lock); - mtx_destroy(&dev->dev_lock); - - return retcode; -} - -static void drm_unload(struct drm_device *dev) -{ - int i; - - DRM_DEBUG("\n"); - - drm_sysctl_cleanup(dev); - destroy_dev(dev->devnode); - - 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(); - - drm_vblank_cleanup(dev); - - /* 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, DRM_MEM_AGPLISTS); - dev->agp = NULL; - } - - if (dev->driver->unload != NULL) { - DRM_LOCK(); - dev->driver->unload(dev); - DRM_UNLOCK(); - } - - delete_unrhdr(dev->drw_unrhdr); - - drm_mem_uninit(); - - if (pci_disable_busmaster(dev->device)) - DRM_ERROR("Request to disable bus-master failed.\n"); - - mtx_destroy(&dev->drw_lock); - mtx_destroy(&dev->vbl_lock); - mtx_destroy(&dev->irq_lock); - mtx_destroy(&dev->dev_lock); -} - -int drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv) -{ - struct drm_version *version = data; - int len; - -#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 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); - - return 0; -} - -int drm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p) -{ - struct drm_device *dev = NULL; - int retcode = 0; - - dev = DRIVER_SOFTC(dev2unit(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(); - device_busy(dev->device); - if (!dev->open_count++) - retcode = drm_firstopen(dev); - DRM_UNLOCK(); - } - - return retcode; -} - -void drm_close(void *data) -{ - struct drm_file *file_priv = data; - struct drm_device *dev = file_priv->dev; - int retcode = 0; - - DRM_DEBUG("open_count = %d\n", dev->open_count); - - DRM_LOCK(); - - if (dev->driver->preclose != NULL) - dev->driver->preclose(dev, file_priv); - - /* ======================================================== - * Begin inline drm_release - */ - - DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", - DRM_CURRENTPID, (long)dev->device, dev->open_count); - - if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) - && dev->lock.file_priv == file_priv) { - 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, file_priv); - - drm_lock_free(&dev->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 = EINTR; - break; - } - if (drm_lock_take(&dev->lock, DRM_KERNEL_CONTEXT)) { - dev->lock.file_priv = file_priv; - dev->lock.lock_time = jiffies; - atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); - break; /* Got lock */ - } - /* Contention */ - retcode = mtx_sleep((void *)&dev->lock.lock_queue, - &dev->dev_lock, PCATCH, "drmlk2", 0); - if (retcode) - break; - } - if (retcode == 0) { - dev->driver->reclaim_buffers_locked(dev, file_priv); - drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT); - } - } - - if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) && - !dev->driver->reclaim_buffers_locked) - drm_reclaim_buffers(dev, file_priv); - - funsetown(&dev->buf_sigio); - - if (dev->driver->postclose != NULL) - dev->driver->postclose(dev, file_priv); - TAILQ_REMOVE(&dev->files, file_priv, link); - free(file_priv, DRM_MEM_FILES); - - /* ======================================================== - * End inline drm_release - */ - - atomic_inc(&dev->counts[_DRM_STAT_CLOSES]); - device_unbusy(dev->device); - if (--dev->open_count == 0) { - retcode = drm_lastclose(dev); - } - - DRM_UNLOCK(); -} - -/* 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) -{ - struct drm_device *dev = drm_get_device_from_kdev(kdev); - int retcode = 0; - drm_ioctl_desc_t *ioctl; - int (*func)(struct drm_device *dev, void *data, struct drm_file *file_priv); - int nr = DRM_IOCTL_NR(cmd); - int is_driver_ioctl = 0; - struct drm_file *file_priv; - - retcode = devfs_get_cdevpriv((void **)&file_priv); - if (retcode != 0) { - DRM_ERROR("can't find authenticator\n"); - return EINVAL; - } - - atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); - ++file_priv->ioctl_count; - - DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n", - DRM_CURRENTPID, cmd, nr, (long)dev->device, - file_priv->authenticated); - - switch (cmd) { - case FIONBIO: - case FIOASYNC: - return 0; - - case FIOSETOWN: - return fsetown(*(int *)data, &dev->buf_sigio); - - case FIOGETOWN: - *(int *) data = fgetown(&dev->buf_sigio); - return 0; - } - - 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; - } - - if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) || - ((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) || - ((ioctl->flags & DRM_MASTER) && !file_priv->master)) - return EACCES; - - if (is_driver_ioctl) { - DRM_LOCK(); - /* shared code returns -errno */ - retcode = -func(dev, data, file_priv); - DRM_UNLOCK(); - } else { - retcode = func(dev, data, file_priv); - } - - if (retcode != 0) - DRM_DEBUG(" returning %d\n", retcode); - - return retcode; -} - -drm_local_map_t *drm_getsarea(struct drm_device *dev) -{ - drm_local_map_t *map; - - DRM_SPINLOCK_ASSERT(&dev->dev_lock); - TAILQ_FOREACH(map, &dev->maplist, link) { - if (map->type == _DRM_SHM && (map->flags & _DRM_CONTAINS_LOCK)) - return map; - } - - return NULL; -} - -#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 */ |