[PATCH] drm/nouveau: keep DMA buffers required for suspend/resume

Timur Tabi timur at kernel.org
Sun Mar 3 14:35:41 UTC 2024


On Fri, Mar 1, 2024 at 2:23 AM Sid Pranjale
<siddharthpranjale127 at gmail.com> wrote:
>
> Nouveau deallocates a few buffers post GPU init which are required for GPU suspend/resume to function correctly.
> This is likely not as big an issue on systems where the NVGPU is the only GPU, but on multi-GPU set ups it leads to a regression where the kernel module errors and results in a system-wide rendering freeze.

Were you able to catch this because nvkm_gsp_mem_dtor() now poisons the buffers?


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