diff options
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_gem.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_gem.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_gem.c b/drivers/gpu/drm/vc4/vc4_gem.c index c77fbf6336a5..33779de7f2e0 100644 --- a/drivers/gpu/drm/vc4/vc4_gem.c +++ b/drivers/gpu/drm/vc4/vc4_gem.c @@ -458,6 +458,7 @@ void vc4_job_handle_completed(struct vc4_dev *vc4) { unsigned long irqflags; + struct vc4_seqno_cb *cb, *cb_temp; spin_lock_irqsave(&vc4->job_lock, irqflags); while (!list_empty(&vc4->job_done_list)) { @@ -472,6 +473,40 @@ vc4_job_handle_completed(struct vc4_dev *vc4) } spin_unlock_irqrestore(&vc4->job_lock, irqflags); + list_for_each_entry_safe(cb, cb_temp, &vc4->seqno_cb_list, work.entry) { + if (cb->seqno <= vc4->finished_seqno) { + list_del_init(&cb->work.entry); + schedule_work(&cb->work); + } + } +} + +static void vc4_seqno_cb_work(struct work_struct *work) +{ + struct vc4_seqno_cb *cb = container_of(work, struct vc4_seqno_cb, work); + cb->func(cb); +} + +int vc4_queue_seqno_cb(struct drm_device *dev, + struct vc4_seqno_cb *cb, uint64_t seqno, + void (*func)(struct vc4_seqno_cb *cb)) +{ + struct vc4_dev *vc4 = to_vc4_dev(dev); + int ret = 0; + + cb->func = func; + INIT_WORK(&cb->work, vc4_seqno_cb_work); + + mutex_lock(&dev->struct_mutex); + if (seqno > vc4->finished_seqno) { + cb->seqno = seqno; + list_add_tail(&cb->work.entry, &vc4->seqno_cb_list); + } else { + schedule_work(&cb->work); + } + mutex_unlock(&dev->struct_mutex); + + return ret; } /* Scheduled when any job has been completed, this walks the list of @@ -621,6 +656,7 @@ vc4_gem_init(struct drm_device *dev) INIT_LIST_HEAD(&vc4->job_list); INIT_LIST_HEAD(&vc4->job_done_list); + INIT_LIST_HEAD(&vc4->seqno_cb_list); spin_lock_init(&vc4->job_lock); INIT_WORK(&vc4->hangcheck.reset_work, vc4_reset_work); |