[PATCH 0/3] NVKM GSP RPC fixes

[Danilo Krummrich]

On Thu, Oct 17, 2024 at 12:19:19AM -0700, Zhi Wang wrote:
> Hi folks:
> 
> Here are some fixes of weird bugs I encountered when I was enabling vGPU [1] on
> core-driver aka NVKM. They are exposed because of the new RPCs required by
> vGPU.
> 
> For testing, I tried to run Uniengine Heaven[2] on my RTX 4060 for 8 hours and
> the GL CTS runner[3] (commandline: ./cts-runner --type-gl40) from Khronos
> without any problem.
> 
> v2:
> 
> - Remove the Fixes: tags as the vanilla nouveau aren't going to hit these bugs. (Danilo)
> - Test the patchset on VK-GL-CTS. (Danilo)
> - Remove the ambiguous empty line in PATCH 2. (Danilo)
> - Rename the r535_gsp_msgq_wait to gsp_msgq_recv. (Danilo)
> - Introduce a data structure to hold the params of gsp_msgq_recv(). (Danilo)
> - Document the params and the states they are related to. (Danilo)

When you send a v2, please make sure to pass `-v2` to `git format-patch`,
otherwise it's hard to distinguish patch versions from their subject.

> 
> [1] https://lore.kernel.org/kvm/20240922124951.1946072-1-zhiw@nvidia.com/T/#t
> [2] https://benchmark.unigine.com/heaven
> [3] https://github.com/KhronosGroup/VK-GL-CTS
> 
> Zhi Wang (3):
>   nvkm/gsp: correctly advance the read pointer of GSP message queue
>   nvkm: correctly calculate the available space of the GSP cmdq buffer
>   nvkm: handle the return of large RPC
> 
>  .../gpu/drm/nouveau/nvkm/subdev/gsp/r535.c    | 251 +++++++++++++-----
>  1 file changed, 184 insertions(+), 67 deletions(-)
> 
> -- 
> 2.34.1
>