[PATCH 5/8] drm/amdkfd: Use PASID manager from KGD

[Felix Kuehling]

On 2017-09-03 07:54 AM, Oded Gabbay wrote:
> Don't you need to allocate PASID on all possible devices ?
> If so, does it need to be the same on all devices ?
The PASID allocator is global (not per-device), so the PASID is intended
to be the same for all devices. I only need to find a device for the
kfd2kgd interface pointer. In a multi-GPU system it doesn't matter which
one. They all share the same PASID allocator.

Technically, I think different devices could use different PASIDs for
the same process. But it would make the driver more complicated and
there is no reason to do this.

Regards,
  Felix