This is the next version of the shmem backed GEM objects series
originally from Asahi, previously posted by Daniel Almeida.

One of the major changes in this patch series is a much better interface
around vmaps, which we achieve by introducing a new set of rust bindings
for iosys_map.

The previous version of the patch series can be found here:

https://patchwork.freedesktop.org/series/156093/

Changelogs are per-patch

Asahi Lina (2):
  rust: helpers: Add bindings/wrappers for dma_resv_lock
  rust: drm: gem: shmem: Add DRM shmem helper abstraction

Lyude Paul (6):
  rust/drm: Add gem::impl_aref_for_gem_obj!
  rust: drm: gem: Add raw_dma_resv() function
  rust: gem: Introduce DriverObject::Args
  rust: drm: gem: Introduce shmem::SGTable
  rust: Introduce iosys_map bindings
  rust: drm/gem: Add vmap functions to shmem bindings

 drivers/gpu/drm/nova/gem.rs     |   5 +-
 drivers/gpu/drm/tyr/gem.rs      |   3 +-
 rust/bindings/bindings_helper.h |   3 +
 rust/helpers/dma-resv.c         |  13 +
 rust/helpers/drm.c              |  48 ++-
 rust/helpers/helpers.c          |   2 +
 rust/helpers/iosys_map.c        |  15 +
 rust/kernel/drm/gem/mod.rs      |  79 +++-
 rust/kernel/drm/gem/shmem.rs    | 433 ++++++++++++++++++++++
 rust/kernel/iosys_map.rs        | 614 ++++++++++++++++++++++++++++++++
 rust/kernel/lib.rs              |   1 +
 11 files changed, 1194 insertions(+), 22 deletions(-)
 create mode 100644 rust/helpers/dma-resv.c
 create mode 100644 rust/helpers/iosys_map.c
 create mode 100644 rust/kernel/drm/gem/shmem.rs
 create mode 100644 rust/kernel/iosys_map.rs


base-commit: 57dc2ea0b7bdb828c5d966d9135c28fe854933a4
-- 
2.52.0

On Tue, Dec 02, 2025 at 05:03:26PM -0500, Lyude Paul wrote:
> This is the next version of the shmem backed GEM objects series
> originally from Asahi, previously posted by Daniel Almeida.
> 
> One of the major changes in this patch series is a much better interface
> around vmaps, which we achieve by introducing a new set of rust bindings
> for iosys_map.
> 
> The previous version of the patch series can be found here:
> 
> https://patchwork.freedesktop.org/series/156093/
> 
> Changelogs are per-patch
> 
> Asahi Lina (2):
>   rust: helpers: Add bindings/wrappers for dma_resv_lock
>   rust: drm: gem: shmem: Add DRM shmem helper abstraction
> 
> Lyude Paul (6):
>   rust/drm: Add gem::impl_aref_for_gem_obj!
>   rust: drm: gem: Add raw_dma_resv() function
>   rust: gem: Introduce DriverObject::Args
>   rust: drm: gem: Introduce shmem::SGTable
>   rust: Introduce iosys_map bindings
>   rust: drm/gem: Add vmap functions to shmem bindings

whole series is tested with the asahi (Apple silicon GPU driver) on top
of v6.18 plus further modifications.

Tested-by: Janne Grunau <j@jannau.net>

Patches I did not reply to directly are

Reviewed-by: Janne Grunau <j@jananu.net>

Janne