Hi everyone, This series is a continuation of my previous RFCs [1] to complete the first step of GSP booting (running the FWSEC-FRTS firmware extracted from the BIOS) on Ampere devices. While it is still far from bringing the GPU into a state where it can do anything useful, it sets up the basic layout of the driver upon which we can build in order to continue with the next steps of GSP booting, as well as supporting more chipsets.
Upon successful probe, the driver will display the range of the WPR2 region constructed by FWSEC-FRTS: [ 95.436000] NovaCore 0000:01:00.0: WPR2: 0xffc00000-0xffce0000 [ 95.436002] NovaCore 0000:01:00.0: GPU instance built This code is based on nova-next with the try_access_with patch [2]. There is still a bit of unsafe code where it is not desired, notably to transmute byte slices into types that implement FromBytes - this is because support for doing such transmute operations safely are not in the kernel crate yet. [1] https://lore.kernel.org/rust-for-linux/20250320-nova_timer-v3-0-79aa2ad25...@nvidia.com/ [2] https://lore.kernel.org/rust-for-linux/20250411-try_with-v4-0-f470ac79e...@nvidia.com/ Signed-off-by: Alexandre Courbot <acour...@nvidia.com> --- Alexandre Courbot (15): rust: add useful ops for u64 rust: make ETIMEDOUT error available gpu: nova-core: derive useful traits for Chipset gpu: nova-core: add missing GA100 definition gpu: nova-core: take bound device in Gpu::new gpu: nova-core: define registers layout using helper macro gpu: nova-core: move Firmware to firmware module gpu: nova-core: wait for GFW_BOOT completion gpu: nova-core: register sysmem flush page gpu: nova-core: add basic timer device gpu: nova-core: add falcon register definitions and base code gpu: nova-core: firmware: add ucode descriptor used by FWSEC-FRTS gpu: nova-core: compute layout of the FRTS region gpu: nova-core: extract FWSEC from BIOS and patch it to run FWSEC-FRTS gpu: nova-core: load and run FWSEC-FRTS Joel Fernandes (1): gpu: nova-core: Add support for VBIOS ucode extraction for boot Documentation/gpu/nova/core/todo.rst | 6 + drivers/gpu/nova-core/devinit.rs | 40 ++ drivers/gpu/nova-core/dma.rs | 54 ++ drivers/gpu/nova-core/driver.rs | 2 +- drivers/gpu/nova-core/falcon.rs | 466 ++++++++++++ drivers/gpu/nova-core/falcon/gsp.rs | 27 + drivers/gpu/nova-core/falcon/hal.rs | 54 ++ drivers/gpu/nova-core/falcon/hal/ga102.rs | 111 +++ drivers/gpu/nova-core/falcon/sec2.rs | 9 + drivers/gpu/nova-core/firmware.rs | 90 ++- drivers/gpu/nova-core/firmware/fwsec.rs | 340 +++++++++ drivers/gpu/nova-core/gpu.rs | 211 ++++-- drivers/gpu/nova-core/gsp.rs | 3 + drivers/gpu/nova-core/gsp/fb.rs | 109 +++ drivers/gpu/nova-core/nova_core.rs | 24 + drivers/gpu/nova-core/regs.rs | 304 ++++++-- drivers/gpu/nova-core/regs/macros.rs | 297 ++++++++ drivers/gpu/nova-core/timer.rs | 130 ++++ drivers/gpu/nova-core/vbios.rs | 1100 +++++++++++++++++++++++++++++ rust/kernel/error.rs | 1 + rust/kernel/lib.rs | 1 + rust/kernel/num.rs | 52 ++ 22 files changed, 3347 insertions(+), 84 deletions(-) --- base-commit: 96609a1969f4ade45351ec368c65580c77592e8b change-id: 20250417-nova-frts-96ef299abe2c prerequisite-change-id: 20250313-try_with-cc9f91dd3b60:v4 prerequisite-patch-id: b0c2d08bdea8193307c43c04aa9ff96baf6b00e1 prerequisite-patch-id: b6d1232c2dfef24e4d3f8753a198eb6c427c3486 Best regards, -- Alexandre Courbot <acour...@nvidia.com>
