diff options
| -rw-r--r-- | drivers/gpu/drm/xe/xe_hw_engine_group.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_hw_engine_group.c b/drivers/gpu/drm/xe/xe_hw_engine_group.c index 8659332012dd..8d3ddfc4ee82 100644 --- a/drivers/gpu/drm/xe/xe_hw_engine_group.c +++ b/drivers/gpu/drm/xe/xe_hw_engine_group.c @@ -202,3 +202,36 @@ err_suspend: up_write(&group->mode_sem); return err; } + +/** + * xe_hw_engine_group_wait_for_dma_fence_jobs() - Wait for dma fence jobs to complete + * @group: The hw engine group + * + * This function is not meant to be called directly from a user IOCTL as dma_fence_wait() + * is not interruptible. + * + * Return: 0 on success, + * -ETIME if waiting for one job failed + */ +static int xe_hw_engine_group_wait_for_dma_fence_jobs(struct xe_hw_engine_group *group) +{ + long timeout; + struct xe_exec_queue *q; + struct dma_fence *fence; + + lockdep_assert_held_write(&group->mode_sem); + + list_for_each_entry(q, &group->exec_queue_list, hw_engine_group_link) { + if (xe_vm_in_lr_mode(q->vm)) + continue; + + fence = xe_exec_queue_last_fence_get_for_resume(q, q->vm); + timeout = dma_fence_wait(fence, false); + dma_fence_put(fence); + + if (timeout < 0) + return -ETIME; + } + + return 0; +} |