On Fri Mar 20, 2026 at 12:19 PM GMT, Alexandre Courbot wrote:
> nova-core carried its own helper macro to declare register types. Its
> purpose was to be temporary since the beginning, and to serve as a
> testbed to develop an equivalent that could be used kernel-wide.
>
> That equivalent has now been merged, so it is time to retire the
> nova-core local version.
>
> The kernel register macro has evolved into something significantly
> different from the one in nova-core, so it cannot be used as a drop-in
> replacement. All declarations and sites using registers need to be
> updated. No semantic change should happen as a result.
>
> All the patches in this series could also be squashed into a single one
> without altering their reviewability significantly. Actually I am
> leaning towards that option since it doesn't make much sense to
> partially convert the driver anyway. I'm leaving it in split state for
> now in case this drives more people towards review. :)
>
> I hope to be able to merge this quickly so we can rebase in-flight
> series to use the updated register syntax.
>
> This series is based on drm-rust-next as of 2026-03-20 and has been
> tested on Turing.
>
> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
With the comment in patch 1 & 7 fixed.
Best,
Gary
> ---
> Changes in v2:
> - Reorder register fields in descending order.
> - Drop `nv_reg` macro and use the kernel `register` macro directly.
> - Make `FUSE_UCODE1_VERSION` registers return a u16 directly.
> - Use `into_raw` instead of accessing the inner value of registers directly.
> - Use safer macro to generate the `From` and `TryFrom` implementations
> of falcon enum types.
> - Link to v1: https://patch.msgid.link/20260318-b4-nova-register-v1-0-22a358aa4c63@nvidia.com
>
> ---
> Alexandre Courbot (10):
> gpu: nova-core: convert PMC registers to kernel register macro
> gpu: nova-core: convert PBUS registers to kernel register macro
> gpu: nova-core: convert PFB registers to kernel register macro
> gpu: nova-core: convert GC6 registers to kernel register macro
> gpu: nova-core: convert FUSE registers to kernel register macro
> gpu: nova-core: convert PDISP registers to kernel register macro
> gpu: nova-core: falcon: introduce `bounded_enum` macro
> gpu: nova-core: convert falcon registers to kernel register macro
> gpu: nova-core: remove `io::` qualifier to register macro invocations
> Documentation: nova: remove register abstraction task
>
> Documentation/gpu/nova/core/todo.rst | 76 ---
> drivers/gpu/nova-core/falcon.rs | 582 ++++++++--------
> drivers/gpu/nova-core/falcon/gsp.rs | 27 +-
> drivers/gpu/nova-core/falcon/hal/ga102.rs | 70 +-
> drivers/gpu/nova-core/falcon/hal/tu102.rs | 12 +-
> drivers/gpu/nova-core/falcon/sec2.rs | 17 +-
> drivers/gpu/nova-core/fb.rs | 6 +-
> drivers/gpu/nova-core/fb/hal/ga100.rs | 37 +-
> drivers/gpu/nova-core/fb/hal/ga102.rs | 7 +-
> drivers/gpu/nova-core/fb/hal/tu102.rs | 17 +-
> drivers/gpu/nova-core/firmware/fwsec/bootloader.rs | 19 +-
> drivers/gpu/nova-core/gfw.rs | 11 +-
> drivers/gpu/nova-core/gpu.rs | 37 +-
> drivers/gpu/nova-core/gsp/boot.rs | 11 +-
> drivers/gpu/nova-core/gsp/cmdq.rs | 9 +-
> drivers/gpu/nova-core/regs.rs | 601 +++++++++--------
> drivers/gpu/nova-core/regs/macros.rs | 739 ---------------------
> 17 files changed, 765 insertions(+), 1513 deletions(-)
> ---
> base-commit: a19457958c3018783881c4416f272cd594f13049
> change-id: 20260318-b4-nova-register-6908b5118552
>
> Best regards,