Search

> From: Ben Skeggs > > This series adds support for loading and running on top of NVIDIA's > GSP-RM firmware, instead of directly programming large portions of the > hardware ourselves. > > The implementation is a little crude in places, but the goal of this > series is to get (more-or-less) GSP-RM support on par with what we > already support on HW. Next steps would be to look at what features > GSP-RM enables us to more fully support, and clean up the GSP-RM > integration once it's known what those will require. > > Things should be somewhat faster when running on GSP-RM, as it's able > to control GPU clocks, which wasn't possible for us previously. > > SVM support is not available when running on top of GSP-RM at this > point, due to GPU fault buffers not being implemented yet. This won't > effect any real use-case, as SVM is experimental at best in nouveau > anyway. > > Aside from that, things should more or less work as normal. > > GSP-RM support is disabled by default for now (except on Ada, where > it's the only option) and can be enabled with nouveau.config=NvGspRm=1. > > There'll likely be some nit-picky bugs to sort through, but I don't > anticipate any huge disasters. I've smoke-tested this on a selection > of GPUs right back to nv50, testing both HW and GSP paths depending > on the GPU, and more thoroughly tested on Turing/Ampere/Ada, both > discrete and laptop GPUs. > > Firmware from NVIDIA is required to enable this support.