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/[email protected] 2. [PATCH v3] rust: iommu: add device lifetime to IoPageTable https://lore.kernel.org/rust-for-linux/[email protected] A branch with all dependencies is available here: https://gitlab.freedesktop.org/dbrouwer/linux/-/commits/fw-boot-b4 Signed-off-by: Deborah Brouwer <[email protected]> --- Changes in v6: - Move gpu_info from drm::Driver::Data to RegistrationData and remove drm::Driver::Data entirely. - Remove the extra drm::Device ARef in TyrPlatformDriverData since drm::Registration already owns an ARef to the drm::Device. - Stop storing platform::Device ARef in firmware since it is unused. - Pass a generic kernel::Device instead of the platform::Device through firmware to Vm and pagetables since this is all that they need. - Link to v5: https://lore.kernel.org/r/[email protected] 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/[email protected] 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/[email protected] 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/[email protected]/ 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/[email protected]/ --- 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 | 11 +- drivers/gpu/drm/tyr/fw.rs | 263 ++++++++++ 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 | 484 +++++++++++++++++++ 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 | 806 +++++++++++++++++++++++++++++++ 12 files changed, 2856 insertions(+), 31 deletions(-) --- base-commit: 3dc952c70e44991277f531ff6a2b8c14bcc52112 change-id: 20260708-fw-boot-b4-f07706a265c7 Best regards, -- Deborah Brouwer <[email protected]>
