Lines Matching +full:b +full:- +full:facing
35 #include <linux/dma-fence.h>
66 * The deprecated ->load callback must be called after the driver is in drm_dev_needs_global_mutex()
71 if (dev->driver->load || dev->driver->unload) in drm_dev_needs_global_mutex()
80 if (dev->driver->lastclose) in drm_dev_needs_global_mutex()
106 * For the driver-side event interface see drm_event_reserve_init() and
111 * function, modern drivers should use one of the provided memory-manager
112 * specific implementations. For GEM-based drivers this is drm_gem_mmap().
135 * For driver-private IOCTL handling see the more detailed discussion in
140 * drm_file_alloc - allocate file context
153 struct drm_device *dev = minor->dev; in drm_file_alloc()
159 return ERR_PTR(-ENOMEM); in drm_file_alloc()
162 file->client_id = atomic64_inc_return(&ident); in drm_file_alloc()
163 rcu_assign_pointer(file->pid, get_pid(task_tgid(current))); in drm_file_alloc()
164 file->minor = minor; in drm_file_alloc()
167 file->authenticated = capable(CAP_SYS_ADMIN); in drm_file_alloc()
169 INIT_LIST_HEAD(&file->lhead); in drm_file_alloc()
170 INIT_LIST_HEAD(&file->fbs); in drm_file_alloc()
171 mutex_init(&file->fbs_lock); in drm_file_alloc()
172 INIT_LIST_HEAD(&file->blobs); in drm_file_alloc()
173 INIT_LIST_HEAD(&file->pending_event_list); in drm_file_alloc()
174 INIT_LIST_HEAD(&file->event_list); in drm_file_alloc()
175 init_waitqueue_head(&file->event_wait); in drm_file_alloc()
176 file->event_space = 4096; /* set aside 4k for event buffer */ in drm_file_alloc()
178 spin_lock_init(&file->master_lookup_lock); in drm_file_alloc()
179 mutex_init(&file->event_read_lock); in drm_file_alloc()
187 drm_prime_init_file_private(&file->prime); in drm_file_alloc()
189 if (dev->driver->open) { in drm_file_alloc()
190 ret = dev->driver->open(dev, file); in drm_file_alloc()
198 drm_prime_destroy_file_private(&file->prime); in drm_file_alloc()
203 put_pid(rcu_access_pointer(file->pid)); in drm_file_alloc()
211 struct drm_device *dev = file_priv->minor->dev; in drm_events_release()
215 spin_lock_irqsave(&dev->event_lock, flags); in drm_events_release()
218 list_for_each_entry_safe(e, et, &file_priv->pending_event_list, in drm_events_release()
220 list_del(&e->pending_link); in drm_events_release()
221 e->file_priv = NULL; in drm_events_release()
225 list_for_each_entry_safe(e, et, &file_priv->event_list, link) { in drm_events_release()
226 list_del(&e->link); in drm_events_release()
230 spin_unlock_irqrestore(&dev->event_lock, flags); in drm_events_release()
234 * drm_file_free - free file context
241 * If NULL is passed, this is a no-op.
250 dev = file->minor->dev; in drm_file_free()
253 current->comm, task_pid_nr(current), in drm_file_free()
254 (long)old_encode_dev(file->minor->kdev->devt), in drm_file_free()
255 atomic_read(&dev->open_count)); in drm_file_free()
259 dev->driver->preclose) in drm_file_free()
260 dev->driver->preclose(dev, file); in drm_file_free()
264 drm_legacy_lock_release(dev, file->filp); in drm_file_free()
287 if (dev->driver->postclose) in drm_file_free()
288 dev->driver->postclose(dev, file); in drm_file_free()
290 drm_prime_destroy_file_private(&file->prime); in drm_file_free()
292 WARN_ON(!list_empty(&file->event_list)); in drm_file_free()
294 put_pid(rcu_access_pointer(file->pid)); in drm_file_free()
300 struct drm_file *file_priv = filp->private_data; in drm_close_helper()
301 struct drm_device *dev = file_priv->minor->dev; in drm_close_helper()
303 mutex_lock(&dev->filelist_mutex); in drm_close_helper()
304 list_del(&file_priv->lhead); in drm_close_helper()
305 mutex_unlock(&dev->filelist_mutex); in drm_close_helper()
313 * \return non-zero if the DRI will run on this CPU, or zero otherwise.
327 * \param minor acquired minor-object.
335 struct drm_device *dev = minor->dev; in drm_open_helper()
339 if (filp->f_flags & O_EXCL) in drm_open_helper()
340 return -EBUSY; /* No exclusive opens */ in drm_open_helper()
342 return -EINVAL; in drm_open_helper()
343 if (dev->switch_power_state != DRM_SWITCH_POWER_ON && in drm_open_helper()
344 dev->switch_power_state != DRM_SWITCH_POWER_DYNAMIC_OFF) in drm_open_helper()
345 return -EINVAL; in drm_open_helper()
348 current->comm, task_pid_nr(current), minor->index); in drm_open_helper()
362 filp->private_data = priv; in drm_open_helper()
363 filp->f_mode |= FMODE_UNSIGNED_OFFSET; in drm_open_helper()
364 priv->filp = filp; in drm_open_helper()
366 mutex_lock(&dev->filelist_mutex); in drm_open_helper()
367 list_add(&priv->lhead, &dev->filelist); in drm_open_helper()
368 mutex_unlock(&dev->filelist_mutex); in drm_open_helper()
375 if (!dev->hose) { in drm_open_helper()
380 dev->hose = pci_dev->sysdata; in drm_open_helper()
383 if (!dev->hose) { in drm_open_helper()
384 struct pci_bus *b = list_entry(pci_root_buses.next, in drm_open_helper() local
386 if (b) in drm_open_helper()
387 dev->hose = b->sysdata; in drm_open_helper()
397 * drm_open - open method for DRM file
402 * It looks up the correct DRM device and instantiates all the per-file
420 dev = minor->dev; in drm_open()
424 if (!atomic_fetch_inc(&dev->open_count)) in drm_open()
427 /* share address_space across all char-devs of a single device */ in drm_open()
428 filp->f_mapping = dev->anon_inode->i_mapping; in drm_open()
447 atomic_dec(&dev->open_count); in drm_open()
459 if (dev->driver->lastclose) in drm_lastclose()
460 dev->driver->lastclose(dev); in drm_lastclose()
470 * drm_release - release method for DRM file
485 struct drm_file *file_priv = filp->private_data; in drm_release()
486 struct drm_minor *minor = file_priv->minor; in drm_release()
487 struct drm_device *dev = minor->dev; in drm_release()
492 drm_dbg_core(dev, "open_count = %d\n", atomic_read(&dev->open_count)); in drm_release()
496 if (atomic_dec_and_test(&dev->open_count)) in drm_release()
518 if (filp->was_master) in drm_file_update_pid()
527 if (pid == rcu_access_pointer(filp->pid)) in drm_file_update_pid()
530 dev = filp->minor->dev; in drm_file_update_pid()
531 mutex_lock(&dev->filelist_mutex); in drm_file_update_pid()
532 old = rcu_replace_pointer(filp->pid, pid, 1); in drm_file_update_pid()
533 mutex_unlock(&dev->filelist_mutex); in drm_file_update_pid()
543 * drm_release_noglobal - release method for DRM file
559 struct drm_file *file_priv = filp->private_data; in drm_release_noglobal()
560 struct drm_minor *minor = file_priv->minor; in drm_release_noglobal()
561 struct drm_device *dev = minor->dev; in drm_release_noglobal()
565 if (atomic_dec_and_mutex_lock(&dev->open_count, &drm_global_mutex)) { in drm_release_noglobal()
577 * drm_read - read method for DRM file
604 struct drm_file *file_priv = filp->private_data; in drm_read()
605 struct drm_device *dev = file_priv->minor->dev; in drm_read()
608 ret = mutex_lock_interruptible(&file_priv->event_read_lock); in drm_read()
615 spin_lock_irq(&dev->event_lock); in drm_read()
616 if (!list_empty(&file_priv->event_list)) { in drm_read()
617 e = list_first_entry(&file_priv->event_list, in drm_read()
619 file_priv->event_space += e->event->length; in drm_read()
620 list_del(&e->link); in drm_read()
622 spin_unlock_irq(&dev->event_lock); in drm_read()
628 if (filp->f_flags & O_NONBLOCK) { in drm_read()
629 ret = -EAGAIN; in drm_read()
633 mutex_unlock(&file_priv->event_read_lock); in drm_read()
634 ret = wait_event_interruptible(file_priv->event_wait, in drm_read()
635 !list_empty(&file_priv->event_list)); in drm_read()
637 ret = mutex_lock_interruptible(&file_priv->event_read_lock); in drm_read()
641 unsigned length = e->event->length; in drm_read()
643 if (length > count - ret) { in drm_read()
645 spin_lock_irq(&dev->event_lock); in drm_read()
646 file_priv->event_space -= length; in drm_read()
647 list_add(&e->link, &file_priv->event_list); in drm_read()
648 spin_unlock_irq(&dev->event_lock); in drm_read()
649 wake_up_interruptible_poll(&file_priv->event_wait, in drm_read()
654 if (copy_to_user(buffer + ret, e->event, length)) { in drm_read()
656 ret = -EFAULT; in drm_read()
664 mutex_unlock(&file_priv->event_read_lock); in drm_read()
671 * drm_poll - poll method for DRM file
688 struct drm_file *file_priv = filp->private_data; in drm_poll()
691 poll_wait(filp, &file_priv->event_wait, wait); in drm_poll()
693 if (!list_empty(&file_priv->event_list)) in drm_poll()
701 * drm_event_reserve_init_locked - init a DRM event and reserve space for it
729 if (file_priv->event_space < e->length) in drm_event_reserve_init_locked()
730 return -ENOMEM; in drm_event_reserve_init_locked()
732 file_priv->event_space -= e->length; in drm_event_reserve_init_locked()
734 p->event = e; in drm_event_reserve_init_locked()
735 list_add(&p->pending_link, &file_priv->pending_event_list); in drm_event_reserve_init_locked()
736 p->file_priv = file_priv; in drm_event_reserve_init_locked()
743 * drm_event_reserve_init - init a DRM event and reserve space for it
774 spin_lock_irqsave(&dev->event_lock, flags); in drm_event_reserve_init()
776 spin_unlock_irqrestore(&dev->event_lock, flags); in drm_event_reserve_init()
783 * drm_event_cancel_free - free a DRM event and release its space
796 spin_lock_irqsave(&dev->event_lock, flags); in drm_event_cancel_free()
797 if (p->file_priv) { in drm_event_cancel_free()
798 p->file_priv->event_space += p->event->length; in drm_event_cancel_free()
799 list_del(&p->pending_link); in drm_event_cancel_free()
801 spin_unlock_irqrestore(&dev->event_lock, flags); in drm_event_cancel_free()
803 if (p->fence) in drm_event_cancel_free()
804 dma_fence_put(p->fence); in drm_event_cancel_free()
813 assert_spin_locked(&dev->event_lock); in drm_send_event_helper()
815 if (e->completion) { in drm_send_event_helper()
816 complete_all(e->completion); in drm_send_event_helper()
817 e->completion_release(e->completion); in drm_send_event_helper()
818 e->completion = NULL; in drm_send_event_helper()
821 if (e->fence) { in drm_send_event_helper()
823 dma_fence_signal_timestamp(e->fence, timestamp); in drm_send_event_helper()
825 dma_fence_signal(e->fence); in drm_send_event_helper()
826 dma_fence_put(e->fence); in drm_send_event_helper()
829 if (!e->file_priv) { in drm_send_event_helper()
834 list_del(&e->pending_link); in drm_send_event_helper()
835 list_add_tail(&e->link, in drm_send_event_helper()
836 &e->file_priv->event_list); in drm_send_event_helper()
837 wake_up_interruptible_poll(&e->file_priv->event_wait, in drm_send_event_helper()
842 * drm_send_event_timestamp_locked - send DRM event to file descriptor
865 * drm_send_event_locked - send DRM event to file descriptor
885 * drm_send_event - send DRM event to file descriptor
903 spin_lock_irqsave(&dev->event_lock, irqflags); in drm_send_event()
905 spin_unlock_irqrestore(&dev->event_lock, irqflags); in drm_send_event()
915 for (u = 0; u < ARRAY_SIZE(units) - 1; u++) { in print_size()
921 drm_printf(p, "drm-%s-%s:\t%llu%s\n", stat, region, sz, units[u]); in print_size()
925 * drm_print_memory_stats - A helper to print memory stats
937 print_size(p, "total", region, stats->private + stats->shared); in drm_print_memory_stats()
938 print_size(p, "shared", region, stats->shared); in drm_print_memory_stats()
939 print_size(p, "active", region, stats->active); in drm_print_memory_stats()
942 print_size(p, "resident", region, stats->resident); in drm_print_memory_stats()
945 print_size(p, "purgeable", region, stats->purgeable); in drm_print_memory_stats()
950 * drm_show_memory_stats - Helper to collect and show standard fdinfo memory stats
964 spin_lock(&file->table_lock); in drm_show_memory_stats()
965 idr_for_each_entry (&file->object_idr, obj, id) { in drm_show_memory_stats()
968 if (obj->funcs && obj->funcs->status) { in drm_show_memory_stats()
969 s = obj->funcs->status(obj); in drm_show_memory_stats()
974 if (obj->handle_count > 1) { in drm_show_memory_stats()
975 status.shared += obj->size; in drm_show_memory_stats()
977 status.private += obj->size; in drm_show_memory_stats()
981 status.resident += obj->size; in drm_show_memory_stats()
989 if (!dma_resv_test_signaled(obj->resv, dma_resv_usage_rw(true))) { in drm_show_memory_stats()
990 status.active += obj->size; in drm_show_memory_stats()
997 status.purgeable += obj->size; in drm_show_memory_stats()
999 spin_unlock(&file->table_lock); in drm_show_memory_stats()
1006 * drm_show_fdinfo - helper for drm file fops
1013 * For text output format description please see Documentation/gpu/drm-usage-stats.rst
1017 struct drm_file *file = f->private_data; in drm_show_fdinfo()
1018 struct drm_device *dev = file->minor->dev; in drm_show_fdinfo()
1021 drm_printf(&p, "drm-driver:\t%s\n", dev->driver->name); in drm_show_fdinfo()
1022 drm_printf(&p, "drm-client-id:\t%llu\n", file->client_id); in drm_show_fdinfo()
1024 if (dev_is_pci(dev->dev)) { in drm_show_fdinfo()
1025 struct pci_dev *pdev = to_pci_dev(dev->dev); in drm_show_fdinfo()
1027 drm_printf(&p, "drm-pdev:\t%04x:%02x:%02x.%d\n", in drm_show_fdinfo()
1028 pci_domain_nr(pdev->bus), pdev->bus->number, in drm_show_fdinfo()
1029 PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn)); in drm_show_fdinfo()
1032 if (dev->driver->show_fdinfo) in drm_show_fdinfo()
1033 dev->driver->show_fdinfo(&p, file); in drm_show_fdinfo()
1038 * mock_drm_getfile - Create a new struct file for the drm device
1046 * to userspace facing functions as an internal/anonymous client.
1053 struct drm_device *dev = minor->dev; in mock_drm_getfile()
1061 file = anon_inode_getfile("drm", dev->driver->fops, priv, flags); in mock_drm_getfile()
1068 file->f_mapping = dev->anon_inode->i_mapping; in mock_drm_getfile()
1071 priv->filp = file; in mock_drm_getfile()