[Intel-gfx] Deploying new iterator interface for dma-buf

[Christian König]

Hi guys,

I've fixed up the lockdep splat in the new selftests found by the CI
systems and added another path for dma_resv_poll.

I know you guys are flooded, but can we get at least the first few patches
committed? The patches to change the individual drivers could also be pushed later on I think.

Thanks,
Christian.