Re: Is Radeon RX Vega 64 supported by drm-next?

On Mon, Jun 18, 2018 at 8:56 AM Grzegorz Junka <[email protected]> wrote:

> On 17/06/2018 17:29, Grzegorz Junka wrote:
> > Hello All
> >
> > According to various sources (including posts to freebsd-x11)
> > drm-stable-kmod supports Polaris (RX 4xx/5xx). Does it mean that
> > drm-next-kmod supports RX Vega?
> >
> > According to Wikipedia Radeon RX 580 is GCN 4th gen:
> > https://en.wikipedia.org/wiki/AMD_Radeon_500_series
> >
> > Which is the last generation before Vega, which in Wikipedia is marked
> > as GCN 5th gen:
> > https://en.wikipedia.org/wiki/List_of_AMD_graphics_processing_units
> >
> > So there is no other GPU left between them. There is also nothing else
> > beyond Vega, which suggests that the only difference between
> > drm-stable and drm-next is the additional support for the latest GPU -
> > Vega. Or I am missing something?
>
> Answering my own question, looks like preliminary Radeon RX Vega support
> landed in Linux 4.12 with full support in 4.14/15. So it seems there is
> no additional Radeon GPU supported in drm-next-kmod (Linux 4.11) that
> isn't already supported in drm-stable-kmod (Linux 4.9). The differences
> seem to be down to improvements in VM drivers and power management.
> Please let me know if you have other information.
>
> Another question, is it possible to estimate work/time before
> Wayland/drm-kmod on FreeBSD supports Linux 4.12/14/15 or NVidia cards?
>

You can try building the drm-v4.15 branch from source. It should work now
with stock kernel (>=1200066).
https://github.com/FreeBSDDesktop/kms-drm

I use it on my AMD Ryzen 3 2200G APU.

We're getting ready to release 4.15 as a port, however it's not bug free
yet so it will be a -devel port.



> GrzegorzJ
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