Add the VM and BO ioctls to the Tyr driver, aligning its userspace interface with panthor.
The series is based on Danilo's `drm-file` series on `drm-rust-next`. It also carries Sami Tolvanen's buffer cache-management patches from https://gitlab.freedesktop.org/panfrost/linux sami/tyr/7.3/dev. The panthor IGT tests pass on an RK3588S device. A branch with the full series and all prerequisites applied is available at: https://gitlab.freedesktop.org/alvinsun039/linux.git tyr-ioctls Link: https://gitlab.freedesktop.org/panfrost/linux/-/merge_requests/64 Signed-off-by: Ke Sun <[email protected]> --- Changes in v3: - Drop the VmOwner wrapper and kill VMs explicitly on destroy and file close (Deborah). - Add Sami Tolvanen's buffer cache-management patches: coherent devices map buffers cached, write-combine buffers flush at creation, and BO_CREATE accepts WB_MMAP. - Drop the new_dummy_object refactor; the dummy object stays a direct Bo::new since new_object now fetches the sgtable for write-combine buffers. - Document the LargeSizeConstants trait in the sizes patch (Miguel). - Misc commit message and comment cleanups. - Link to v2: https://lore.kernel.org/r/[email protected] Changes in v2: - Fold the VM pool into vm.rs and cap it at 32 VMs per file (Deborah). - Add VmOwner so a VM is killed exactly once on drop, regardless of remaining references (Daniel). - Replace the VmSpec enum with new_for_fw()/new_for_user() constructors (Daniel). - Parse VM_BIND op types via VmBindOpType and use the kernel Atomic<bool> for the unusable flag (Daniel). - Use PAGE_SIZE for the dummy object size (Daniel). - Rename BoData::create_flags() to flags() (Daniel). - Report VA-split failures with dev_err! at the caller (Deborah). - Link to v1: https://lore.kernel.org/r/[email protected] --- Alvin Sun (8): rust: sizes: add SZ_4G constant rust: mm: add `task_size` helper rust: sync: arc: relax `ForeignOwnable` for `Arc<T>` drm/tyr: add per-file VM pool drm/tyr: add user and MCU VM specifications drm/tyr: add BO creation and lookup helpers drm/tyr: add VM-related ioctls drm/tyr: add BO-related ioctls Sami Tolvanen (3): rust: device: expose dma_coherent() drm/tyr: gem: flush write-combine BOs from probe-time coherence drm/tyr: gem: map cached BOs for DRM_PANTHOR_BO_WB_MMAP drivers/gpu/drm/tyr/driver.rs | 24 ++- drivers/gpu/drm/tyr/file.rs | 405 +++++++++++++++++++++++++++++++++++++++- drivers/gpu/drm/tyr/fw.rs | 21 ++- drivers/gpu/drm/tyr/gem.rs | 78 +++++++- drivers/gpu/drm/tyr/vm.rs | 325 ++++++++++++++++++++++++++++++-- rust/bindings/bindings_helper.h | 1 + rust/kernel/device.rs | 16 ++ rust/kernel/mm.rs | 7 + rust/kernel/sizes.rs | 12 ++ rust/kernel/sync/arc.rs | 12 +- 10 files changed, 851 insertions(+), 50 deletions(-) --- base-commit: 47cba9eeecd9a046ee5d211b86aae3e84d2e0b53 change-id: 20260901-tyr-ioctls-f10ef0dcbfa6 Best regards, -- Ke Sun <[email protected]>
