The "Nova" driver for NVIDIA chipsets
We just started to work on Nova, a Rust-based GSP-only driver for Nvidia GPUs. Nova, in the long term, is intended to serve as the successor of Nouveau for GSP-firmware-based GPUs.With Nova we see the chance to significantly decrease the complexity of the driver compared to Nouveau for mainly two reasons. First, Nouveau's historic architecture, especially around nvif/nvkm, is rather complicated and inflexible and requires major rework to solve certain problems (such as locking hierarchy in VMM / MMU code for VM_BIND currently being solved with a workaround) and second, with a GSP-only driver there is no need to maintain compatibility with pre-GSP code.
Besides that, we also want to take the chance to contribute to the Rust efforts in the kernel and benefit from from more memory safety offered by the Rust programming language.
Given that the effort has just begun, it will be a while before this driver
shows up in a distribution release.
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