Re: Status of the Panfrost driver

Hello bro.

The panfrost driver exists for the pinebook pro (so,for the RockChip
RK3399) but it is not complete / stable because it misses the iommu part.

A port for the Rockchip RK3566 has been created,adding the vop2 because
that chip/gpu needs it ,but it is not stable because it has the same defect
as the previous one (missing iommu). So,it crashes often very hard.
Probably with some luck it crashes less frequently. There is a better
version that uses the code taken from the cheribsd,but again,it is not
usable for serious usage.

I'm building a cyberdesk / phone based on FreeBSD and probably I will
include its code. But until it is not complete and stable,I will keep the
device in a drawer,waiting. Unfortunately without it does not worth giving
birth to the device.


On Fri, Aug 1, 2025 at 6:53 PM Michał Kruszewski <mkru@protonmail.com>
wrote:

> Does anyone know what is the status of the Panfrost driver?
>
> A few years ago there was a request to add it to the source tree,
> https://reviews.freebsd.org/D34370.
> However, it was closed with a very short summary "Out of tree drivers
> exists for panfrost so include it."
> No rationale for the decision.
> How do comitters decided whether some driver shall be merged into the
> source tree or not.
>
> Does anyone use the out of tree drvier?
> What is your experience, is it stable?
>
> Best regards,
> Michał Kruszewski
>
>
> Sent with Proton Mail <https://proton.me/mail/home> secure email.
>


-- 
Mario.