[PATCH 5/5] amdgpu: use drm sync objects for shared semaphores (v5)

[Dave Airlie]

> team which seem to make a lot of sense to upstream as well:
>
> 1. An IOCTL to reset a sync object to it's initial state. E.g. reset the
> fence the sync objects wraps back to NULL.
>
> 2. The ability to merge multiple sync objects into one. Essentially the same
> thing we have for the sync file, but handle based instead of fd.
>
> I'm going to work on that in the next week or so. Shouldn't be to much of a
> problem to come up with some sane code, but probably finding use cases for
> this in the open source userspace might be challenging.

Do we have use cases for these in the closed source stack? I'm sure if they are
useful enough, radv could use them for similiar things.

Dave.