On Tue, Apr 27, 2021 at 1:35 PM Simon Ser contact@emersion.fr wrote:
On Tuesday, April 27th, 2021 at 7:31 PM, Lucas Stach l.stach@pengutronix.de wrote:
Ok. So that would only make the following use cases broken for now:
- amd render -> external gpu
- amd video encode -> network device
FWIW, "only" breaking amd render -> external gpu will make us pretty unhappy
I concur. I have quite a few users with a multi-GPU setup involving AMD hardware.
Note, if this brokenness can't be avoided, I'd prefer a to get a clear error, and not bad results on screen because nothing is synchronized anymore.
It's an upcoming requirement for windows[1], so you are likely to start seeing this across all GPU vendors that support windows. I think the timing depends on how quickly the legacy hardware support sticks around for each vendor.
Alex
[1] - https://devblogs.microsoft.com/directx/hardware-accelerated-gpu-scheduling/
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