[PATCH v11 00/12] gpu: nova-core: add Turing support

[Alexandre Courbot <acourbot@nvidia.com>]

This patchset adds the remaining support required for booting the GSP on
Turing.

We did a deep dive with Eliot looking for the reasons why some fields
involved in the bootloader are ignored or used apparently
inconsistently, and this results in a more documented flow and a few
fixes. Apart from that, this series seems to be stabilizing and
successfully probes my TU106:

    NovaCore 0000:08:00.0: NVIDIA (Chipset: TU106, Architecture: Turing, Revision: a.1)
    NovaCore 0000:08:00.0: GPU name: NVIDIA GeForce RTX 2070

This series is based on `drm-rust-next`. A tree with all the patches is
available at [1].

[1] https://github.com/Gnurou/linux/tree/b4/turing

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

Changes in v11:
- Fix build error/warnings and rustfmt formatting.
- Address incorrect IMEM section start offsets in FalconUCodeDescV2
  and better document fields usage and unused fields.
- Use `get`/`get_mut` instead of direct array indexing when accessing
  firmware content.
- Link to v10: https://patch.msgid.link/20260301-turing_prep-v10-0-dde5ee437c60@nvidia.com

Changes in v10:
- Store the firmwares into a regular KVec and move them into a DMA
  object only when actually loading using DMA.
- Use `try_update` when updating the `NV_PFALCON_FBIF_TRANSCFG` register
  array as its index is not build-time proven to be valid.
- Fix alignment issue when processing imem section of the FWSEC
  bootloader (thanks Eliot!).
- Link to v9: https://patch.msgid.link/20260212-turing_prep-v9-0-238520ad8799@nvidia.com

Changes in v9:
- Add a few preparatory patches to simplify the actual feature patches.
- Use a wrapping type for the bootloader.
- Simplify the falcon loading code and move the complexity to the
  firmware types.
- Add the generic bootloader files to `ModInfoBuilder`.
- Link to v8: https://lore.kernel.org/all/20260122222848.2555890-1-ttabi@nvidia.com/

---
Alexandre Courbot (10):
      gpu: nova-core: create falcon firmware DMA objects lazily
      gpu: nova-core: falcon: add constant for memory block alignment
      gpu: nova-core: falcon: rename load parameters to reflect DMA dependency
      gpu: nova-core: falcon: remove FalconFirmware's dependency on FalconDmaLoadable
      gpu: nova-core: move brom_params and boot_addr to FalconFirmware
      gpu: nova-core: falcon: remove unwarranted safety check in dma_load
      gpu: nova-core: firmware: add comments to justify v3 header values
      gpu: nova-core: firmware: fix and explain v2 header offsets computations
      gpu: nova-core: make Chipset::arch() const
      gpu: nova-core: add gen_bootloader firmware to ModInfoBuilder

Timur Tabi (2):
      gpu: nova-core: add PIO support for loading firmware images
      gpu: nova-core: use the Generic Bootloader to boot FWSEC on Turing

 drivers/gpu/nova-core/falcon.rs                    | 315 ++++++++++++++++---
 drivers/gpu/nova-core/falcon/hal.rs                |   6 +-
 drivers/gpu/nova-core/firmware.rs                  | 107 ++++---
 drivers/gpu/nova-core/firmware/booter.rs           |  65 ++--
 drivers/gpu/nova-core/firmware/fwsec.rs            | 129 +++-----
 drivers/gpu/nova-core/firmware/fwsec/bootloader.rs | 348 +++++++++++++++++++++
 drivers/gpu/nova-core/gpu.rs                       |   9 +-
 drivers/gpu/nova-core/gsp/boot.rs                  |  17 +-
 drivers/gpu/nova-core/regs.rs                      |  30 ++
 9 files changed, 820 insertions(+), 206 deletions(-)
---
base-commit: 15da5bc9f3adab7242867db0251fe451ac3ddb72
change-id: 20260204-turing_prep-6f6f54fe1850

Best regards,
-- 
Alexandre Courbot <acourbot@nvidia.com>