Re: [PATCH v19 0/4] Rust bindings for gem shmem

[Deborah Brouwer <deborah.brouwer@collabora.com>]

On Mon, Jun 08, 2026 at 02:29:00PM -0400, Lyude Paul wrote:
> Most of this patch series has already been pushed upstream, this is just
> the second half of the patch series that has not been pushed yet + some
> additional changes which were required to implement changes requested by
> the mailing list. This patch series is originally from Asahi, previously
> posted by Daniel Almeida.
> 
> The previous version of the patch series can be found here:
> 
> 	https://patchwork.freedesktop.org/series/164580/
> 
> Branch with patches applied available here:
> 
> 	https://gitlab.freedesktop.org/lyudess/linux/-/commits/rust/gem-shmem
> 
> This patch series applies on top of drm-rust-next
> 
> Patch-series wide changes since V15:
> * Fix some major rebasing errors I somehow didn't notice :(
> * Drop the dependency on LazyInit, use the trick that Alice suggested
>   instead.
> * Fix dependency ordering so that Tyr can get the vmap stuff first
>   without the other bits.
> Patch-series wide changes since V16:
> * Fix ordering one more time (SetOnce::reset() doesn't need to come
>   before adding vmap functions)
> * Rebase against the latest DeviceContext changes from me that got
>   pushed.
> 
> Lyude Paul (4):
>   rust: drm: gem: shmem: Add DmaResvGuard helper
>   rust: drm: gem: shmem: Add vmap functions
>   rust: faux: Allow retrieving a bound Device
>   rust: drm: gem: Introduce shmem::Object::sg_table()
> 
>  rust/kernel/drm/gem/shmem.rs | 524 ++++++++++++++++++++++++++++++++++-
>  rust/kernel/faux.rs          |  16 +-
>  2 files changed, 524 insertions(+), 16 deletions(-)
> 
> 
> base-commit: fea3a2dd7d3fc1936211ced5f84420e610435730
> -- 
> 2.54.0
> 
Thanks, it's working nicely with Tyr. To make this work with [1] I did
have to make a few changes to the KunitDriver and tests, but that
is a separate issue.

[1] [PATCH v2 0/7] rust: drm: Higher-Ranked Lifetime private data
https://lore.kernel.org/rust-for-linux/20260603011711.2077361-1-dakr@kernel.org/

Tested-by: Deborah Brouwer <deborah.brouwer@collabora.com>