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Hi Dave,<br>
<br>
<div class="moz-cite-prefix">Am 27.04.21 um 21:23 schrieb Marek
Olšák:<br>
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<div>Supporting interop with any device is always possible. It
depends on which drivers we need to interoperate with and
update them. We've already found the path forward for amdgpu.
We just need to find out how many other drivers need to be
updated and evaluate the cost/benefit aspect.<br>
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<div>Marek<br>
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<div dir="ltr" class="gmail_attr">On Tue, Apr 27, 2021 at 2:38
PM Dave Airlie <<a href="mailto:airlied@gmail.com"
moz-do-not-send="true">airlied@gmail.com</a>> wrote:<br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On
Tue, 27 Apr 2021 at 22:06, Christian König<br>
<<a href="mailto:ckoenig.leichtzumerken@gmail.com"
target="_blank" moz-do-not-send="true">ckoenig.leichtzumerken@gmail.com</a>>
wrote:<br>
><br>
> Correct, we wouldn't have synchronization between device
with and without user queues any more.<br>
><br>
> That could only be a problem for A+I Laptops.<br>
<br>
Since I think you mentioned you'd only be enabling this on
newer<br>
chipsets, won't it be a problem for A+A where one A is a
generation<br>
behind the other?<br>
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<br>
Crap, that is a good point as well.<br>
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cite="mid:CAAxE2A55Te6DjabYH8ELyfM03x2ZDaLsCsNC4Zqkrq0ExdpeHA@mail.gmail.com">
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<br>
I'm not really liking where this is going btw, seems like a
ill<br>
thought out concept, if AMD is really going down the road of
designing<br>
hw that is currently Linux incompatible, you are going to have
to<br>
accept a big part of the burden in bringing this support in to
more<br>
than just amd drivers for upcoming generations of gpu.<br>
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<br>
Well we don't really like that either, but we have no other option
as far as I can see.<br>
<br>
I have a couple of ideas how to handle this in the kernel without
dma_fences, but it always require more or less changes to all
existing drivers.<br>
<br>
Christian.<br>
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<br>
Dave.<br>
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