[PATCH 00/16] nova-core: run FWSEC-FRTS to perform first stage of GSP initialization

Alexandre Courbot
2025-04-20T12:19:54Z

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-v3-0-79aa2ad25a79@nvidia.com/
[2] https://lore.kernel.org/rust-for-linux/20250411-try_with-v4-0-f470ac79e2e2@nvidia.com/

Signed-off-by: Alexandre Courbot <acourbot@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 <acourbot@nvidia.com>