This series provides an immediate mode GPUVM implementation. Only immediate mode is provided for Rust code, as all planned Rust drivers intend to use GPUVM in immediate mode.
Signed-off-by: Alice Ryhl <[email protected]> --- Changes in v4: - Add trait bound so that DriverGpuVm::Object must be the same type as Driver::Object. - Add rust/helpers/dma-resv.c to MAINTAINERS. - Add __rust_helper to dma_resv_lock and dma_resv_unlock. - Rename GpuVm::raw_resv_lock() to GpuVm::raw_resv() - Reword comment in obtain() for adding to extobj list. - Fix typo in commit message referring to GpuVm<_> instead of GpuVmBo<_>. - Changed the PhantomData type used for invariance and add comment. (No functional change.) - Rename offset to gem_offset in args to sm_map(). - Link to v3: https://lore.kernel.org/r/[email protected] Changes in v3: - C prerequisites have landed, so only Rust part is present. - The logic for drm_exec was removed, and is for a follow-up. - Split up into patches. - Add lifetime to SmStepContext. - Docs filled out. - Mutex abstractions used for GEM gpuva lock. - Drop 'shared data' concept for now. (Can be added back later if required.) - Rename 'core' field to 'data'. - GpuVmCore<T> now derefs to GpuVm<T> instead of T. - Renamed GpuVmBoObtain to GpuVmBoResident. - Probably more changes I forgot. - Link to v2: https://lore.kernel.org/r/[email protected] Changes in v2: - For this version, only the C prerequisites are included. Rust will be sent as follow-up. - Add comment to drm_gpuvm_bo_destroy_not_in_lists() - Add Fixes: tag. - Pick up Reviewed-by tags. - Link to v1: https://lore.kernel.org/r/[email protected] --- Alice Ryhl (4): rust: gpuvm: add GpuVm::obtain() rust: gpuvm: add GpuVa struct rust: gpuvm: add GpuVmCore::sm_unmap() rust: gpuvm: add GpuVmCore::sm_map() Asahi Lina (2): rust: drm: add base GPUVM immediate mode abstraction rust: helpers: Add bindings/wrappers for dma_resv_lock MAINTAINERS | 3 + rust/bindings/bindings_helper.h | 2 + rust/helpers/dma-resv.c | 14 ++ rust/helpers/drm_gpuvm.c | 18 ++ rust/helpers/helpers.c | 2 + rust/kernel/drm/gpuvm/mod.rs | 299 ++++++++++++++++++++++++++++ rust/kernel/drm/gpuvm/sm_ops.rs | 417 ++++++++++++++++++++++++++++++++++++++++ rust/kernel/drm/gpuvm/va.rs | 148 ++++++++++++++ rust/kernel/drm/gpuvm/vm_bo.rs | 227 ++++++++++++++++++++++ rust/kernel/drm/mod.rs | 1 + 10 files changed, 1131 insertions(+) --- base-commit: 263e9ef3f5736697483af66babb8bc72f145b3f4 change-id: 20251128-gpuvm-rust-b719cac27ad6 Best regards, -- Alice Ryhl <[email protected]>
