On Sun, 13 Sep 2026 23:08:27 +0200, Matteo Kloiber wrote:
> The PCI default max_seg_size is 64 KiB. nova-core never raises it, so
> mapping the GSP firmware image (~60 MiB) as a scatter-gather table
> triggers a DMA-API debug warning when contiguous pages coalesce into
> segments that exceed the default:
>
> DMA-API: nova-core 0000:00:03.0: mapping sg segment longer than
> device claims to support [len=62914560] [max=65536]
>
> [...]
Applied to drm-rust-next, thanks and congrats on your first kernel patch! :)
[1/2] gpu: nova-core: declare unlimited DMA max segment size
commit: 6bd5eaeb9827ca7ba953b68fb27948fdb3e40630
Patch 2 has triggered more discussion as hoped, so let's see where this goes
first.
