PRT support for amdgpu v3

[Nicolai Hähnle]

On 08.02.2017 16:04, Christian König wrote:
> Hi guys,
>
> ok I finally found time to write an unit test for this and hammered out the last few bugs.
>
> Seems to work fine on my Tonga now. Please note that this set is based on "fix race in GEM VA map IOCTL v2", without that patch you will run into a NULL pointer dereference during PRT mapping.

I can confirm that it works with my Mesa series as well: I get the 
"Disabling VM faults" warning message, and indeed accessing outside the 
committed region does not cause VM faults.

Cheers,
Nicolai

>
> Going to send out the unit test in a minute.
>
> Regards,
> Christian.
>
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