[PATCH v5 0/7] drm/tyr: firmware loading and MCU boot support

[Deborah Brouwer]

This series adds firmware loading and MCU boot support to the Tyr DRM
driver. It includes:
 - A parser for the Mali CSF firmware binary format
 - A kernel-managed BO type (KernelBo) for internal driver allocations
 - GPU virtual memory (VM) integration using drm_gpuvm
 - An MMU module and a generic slot manager
 - Loading firmware, VM activation, and MCU boot at probe()

It is based on drm-rust-next but also depends on:
1. [PATCH v5 00/19] rust: drm: Higher-Ranked Lifetime private data
   https://lore.kernel.org/rust-for-linux/20260628145406.2107056-1-dakr@xxxxxxxxxx

2. [PATCH v3] rust: iommu: add device lifetime to IoPageTable
   https://lore.kernel.org/rust-for-linux/20260703-pgtable_lt_b4-v3-1-e738e1f513a4@xxxxxxxxxxxxx

A branch with all dependencies is available here:
https://gitlab.freedesktop.org/dbrouwer/linux/-/commits/fw-boot-b4

Signed-off-by: Deborah Brouwer <deborah.brouwer@xxxxxxxxxxxxx>
---
Changes in v5:
- Reduce the scope of this series back to just MCU booting.
- Drop the CSF global interface, job IRQ, wait, and arch timer patches
  since they will be sent as subsequent series.
- Add lifetimes to resources and store them in TyrRegistrationData.

- Link to v4: https://lore.kernel.org/r/20260424-b4-fw-boot-v4-v4-0-a5d91050789d@xxxxxxxxxxxxx

Changes in v4:
 New commits:
  - drm/tyr: program CSF global interface
  - rust: time: add arch_timer_get_rate wrapper
  - drm/tyr: add CSF firmware interface support
  - drm/tyr: validate presence of CSF shared section
  - drm/tyr: wait for global interface readiness
  - drm/tyr: add Job IRQ handling
  - drm/tyr: add Wait type for GPU events

 The existing commits from v3 remain unchanged.
 - Link to v3: https://lore.kernel.org/r/20260413-b4-fw-boot-v3-v3-0-b422f3c03885@xxxxxxxxxxxxx
    
Changes in v3:
 New commits:
  - drm/tyr: remove unused device from platform data
  - drm/tyr: use shmem GEM object type in TyrDrmDriver
    
 drm/tyr: select required dependencies in Kconfig
  - Rename commit since the dependencies are not limited to DRM.
  - Select new RUST_DRM_GEM_SHMEM_HELPER instead of DRM_GEM_SHMEM_HELPER.
    
 drm/tyr: set DMA mask using GPU physical address
  - Use register macro to read pa_bits instead of separate helper function.
    
 drm/tyr: add MMU module
  - Switch MMU code to typed register APIs (TRANSCFG, MEMATTR, STATUS, LOCKADDR, etc.).
  - Use MmuCommand enum for MMU commands instead of raw constants.
  - Minor cleanups and renaming (MAX_AS, AS_PRESENT handling).
    
 drm/tyr: add GPU virtual memory module
  - Extract VA/PA bits via typed MMU_FEATURES register.
  - Update the VM code to match the new GPUVM v6 and shmem GEM v10 APIs.
    
 drm/tyr: add a kernel buffer object
  - Reject zero-sized KernelBo allocations up front.
    
 drm/tyr: add firmware loading and MCU boot support
  - Use typed GPU control registers.
  - Pass iomem by Arc into Firmware::new() since we store it eventually.
    
  - Link to v2: https://lore.kernel.org/rust-for-linux/20260302232500.244489-1-deborah.brouwer@xxxxxxxxxxxxx/
    
Changes in v2:
 - The whole series is rebased on drm-rust-next including v7.0-rc1.
 - Each patch has its own changelog.
    
 Link to v1: https://lore.kernel.org/rust-for-linux/20260212013713.304343-1-deborah.brouwer@xxxxxxxxxxxxx/

---
Boris Brezillon (3):
      drm/tyr: add a generic slot manager
      drm/tyr: add Memory Management Unit (MMU) support
      drm/tyr: add GPU virtual memory (VM) support

Daniel Almeida (1):
      drm/tyr: add parser for firmware binary

Deborah Brouwer (3):
      drm/tyr: add resources to RegistrationData
      drm/tyr: add a kernel buffer object
      drm/tyr: add Microcontroller Unit (MCU) booting

 drivers/gpu/drm/tyr/Kconfig              |   5 +
 drivers/gpu/drm/tyr/driver.rs            |  64 ++-
 drivers/gpu/drm/tyr/file.rs              |   5 +-
 drivers/gpu/drm/tyr/fw.rs                | 266 ++++++++++
 drivers/gpu/drm/tyr/fw/parser.rs         | 521 ++++++++++++++++++++
 drivers/gpu/drm/tyr/gem.rs               | 122 ++++-
 drivers/gpu/drm/tyr/mmu.rs               | 102 ++++
 drivers/gpu/drm/tyr/mmu/address_space.rs | 482 ++++++++++++++++++
 drivers/gpu/drm/tyr/regs.rs              | 121 +++++
 drivers/gpu/drm/tyr/slot.rs              | 384 +++++++++++++++
 drivers/gpu/drm/tyr/tyr.rs               |   4 +
 drivers/gpu/drm/tyr/vm.rs                | 810 +++++++++++++++++++++++++++++++
 12 files changed, 2864 insertions(+), 22 deletions(-)
---
base-commit: 3dc952c70e44991277f531ff6a2b8c14bcc52112
change-id: 20260708-fw-boot-b4-f07706a265c7

Best regards,
-- 
Deborah Brouwer <deborah.brouwer@xxxxxxxxxxxxx>