[repost] drm sync objects cleaned up

[Chris Wilson]

On Tue, Apr 11, 2017 at 01:22:12PM +1000, Dave Airlie wrote:
> This set of sync object patches should address most of the issues
> raised in review.
> 
> The major changes:
> Race on destroy should be gone,
> Documentation fixups
> amdgpu internal use p instead of adev fixups
> 
> My plans are to write some igt tests this week, and try
> to get some more review on what the API should allow (should
> I lock it down to drm syncobj is just semaphores for now).

Having an idr of handles is much, much nicer than fd and I want the same
for fences :)
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre