Is Radeon RX Vega 64 supported by drm-next?

[Johannes Lundberg]

On Mon, Jun 18, 2018 at 09:40 Grzegorz Junka <list1 at gjunka.com> wrote:

> Did you mean 12-STABLE?
>

No, 11-STABLE. 4.15 support will be merged in 11 source tree soon but won’t
make it into a release until 11.3. You can checkout a snapshot of 11-STABLE
until then.


>
> Let me reiterate to check if I've got it right. To support Vega I need to
> compile kernel >=1200066 from sources + kms-drm from drm-v4.15 branch. If
> that's correct, will kernel 12x work with 11.1/11.2 userland or I will need
> to update to FreeBSD 12?
>

You’ll need a recent 12-CURRENT world with recent 12-CURRENT kernel.

If you want to stay with 11, check with hps@ (cc:d) when he plan to
backport 4.15 support into 11-STABLE.


>
> Thanks again for help
> GrzegorzJ
>
>
> On 18/06/2018 07:23, Johannes Lundberg wrote:
>
> Support for 4.15 wont be in until 11.3-RELEASE but it will be in 11-STABLE
> soon though.
>
> 11.2 supports up to 4.11.
>
> On Mon, Jun 18, 2018 at 09:20 Grzegorz Junka <list1 at gjunka.com> wrote:
>
>> On 18/06/2018 07:04, Johannes Lundberg wrote:
>>
>>
>>
>> On Mon, Jun 18, 2018 at 8:56 AM Grzegorz Junka <list1 at gjunka.com> 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.
>>
>>
>> Sounds great! Sorry for a n00bie question. Once support for drm-kmod
>> lands in the 11.2 kernel, will support for newer linuxkpi KMS APIs (i.e.
>> 4.15) also require kernel changes or they will be supported through ports?
>> I don't quite know how the support for linuxkpi drivers is split between
>> the kernel and userland.
>>
>> Thanks
>> GrzegorzJ
>>
>
>