[PATCH v2 0/9] drm/tyr: add VM and BO ioctl support

[Ke Sun via B4 Relay]

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`, and uses the existing IdPool and xarray
abstractions for per-file VM management.

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

Signed-off-by: Ke Sun <sunke@xxxxxxxxxx>
Link: https://gitlab.freedesktop.org/panfrost/linux/-/merge_requests/64
---
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/20260902-tyr-ioctls-v1-0-e0fdbf8bd108@xxxxxxxxxx

---
Alvin Sun (9):
      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: refactor new_dummy_object to use new_object
      drm/tyr: add VM-related ioctls
      drm/tyr: add BO-related ioctls

 drivers/gpu/drm/tyr/driver.rs   |  14 +-
 drivers/gpu/drm/tyr/file.rs     | 378 ++++++++++++++++++++++++++++++++++++++--
 drivers/gpu/drm/tyr/fw.rs       |  37 ++--
 drivers/gpu/drm/tyr/gem.rs      |  41 ++++-
 drivers/gpu/drm/tyr/vm.rs       | 378 ++++++++++++++++++++++++++++++++++++++--
 rust/bindings/bindings_helper.h |   1 +
 rust/kernel/mm.rs               |   7 +
 rust/kernel/sizes.rs            |  12 ++
 rust/kernel/sync/arc.rs         |  12 +-
 9 files changed, 819 insertions(+), 61 deletions(-)
---
base-commit: 3ac51829f95368876dcfbfbb42823ca0cd6e6f56
change-id: 20260901-tyr-ioctls-f10ef0dcbfa6

Best regards,
-- 
Ke Sun <sunke@xxxxxxxxxx>