OSS + ELC EU 2026

RISC-V is evolving into a capable desktop replacement, driven by boards like the Lichee Pi 4A, but a major barrier remains: the lack of a fully open, upstream graphics stack.

This talk explores enabling hardware accelerated graphics on modern RISC-V SoCs by extending the open source Imagination PowerVR driver for the TH1520. We dive into the architectural challenges of this port, including the complex power sequencing that necessitated the new pwrseq-thead-gpu driver. We break down how the kernel DRM driver interacts with the Mesa PVR Vulkan driver, and how leveraging the Zink translation layer finally brings standard OpenGL desktop acceleration to the platform. Finally, we cover the current mainline status and next steps for the StarFive JH7110 display controller integration.

Key Takeaways / What Attendees Will Learn:
- Porting the open PowerVR driver to the RISC-V TH1520 SoC.
- Implementing kernel power sequencing (pwrseq) for complex GPU domains.
- Interacting between DRM, Mesa Vulkan, and Zink for desktop GL support.
- Current mainline status of the JH7110 Display Controller.

https://mwilczynski.dev/posts/riscv-gpu-zink/