[PATCH v4 0/9] Rust bindings for gem shmem + iosys_map

[Lyude Paul <lyude@redhat.com>]

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 acheive by introducing a new set of rust bindings
for iosys_map.

This patch applies to drm-rust-next with two additional commits from
drm-misc-next:

e3f4bdaf2c5b ("drm/gem/shmem: Extract drm_gem_shmem_init() from drm_gem_shmem_create()")
c08c931060c7 ("drm/gem/shmem: Extract drm_gem_shmem_release() from drm_gem_shmem_free()")

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

  https://lwn.net/Articles/1035785/

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

Lyude Paul (7):
  Partially revert "rust: drm: gem: Implement AlwaysRefCounted for all
    gem objects automatically"
  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 +-
 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      |  85 ++--
 rust/kernel/drm/gem/shmem.rs    | 427 ++++++++++++++++++++
 rust/kernel/iosys_map.rs        | 686 ++++++++++++++++++++++++++++++++
 rust/kernel/lib.rs              |   1 +
 10 files changed, 1259 insertions(+), 26 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: 1d5cffebd930d61588c32198f85fbe541ab97b8f
prerequisite-patch-id: ed9c46db079eee47b437d10234dac813197bc33e
prerequisite-patch-id: a2c6c70700e6a333d0b4daf97978fd2e07e24156
-- 
2.51.0