Re: Talos II / Xorg / amdgpu Radeon RX 580

On 01/09/2022 13:23, Mark Kettenis wrote:
>> From: Daniel Pocock <[email protected]>
>> Date: Thu, 1 Sep 2022 11:14:36 +0200
>>
>> I decided to make another test install of OpenBSD nightly build from 29
>> August on one of my workstations.
>>
>> The system is Talos II, dual CPU, 128GB and AMD Radeon RX 580 8GB.  Is
>> this GPU currently supported?
> 
> Not on powerpc64.  AMD dropped all hardware and software support for
> their GPUs on big-endian architectures.  Only older GPUs supported by
> the radeondrm(4) driver are supported.  Not exactly sure where the
> cutoff is.


Thanks for the fast reply about this

Are there any other non-AMD GPUs suggested?

I was looking at this page, could you consider adding something about
the big/little endian status of the platform?

https://www.openbsd.org/powerpc64.html

Do you have any plans to provide an OpenBSD little endian build?  The
CPUs support either big or little endian.  I've even seen some comments
to the effect that you can mix both in the same system

https://developer.ibm.com/articles/l-power-little-endian-faq-trs/

Would it be feasible to run little endian Linux in an OpenBSD VM and
access the GPU using PCI passthrough?



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