| 38f7e545 | 25-Mar-2026 |
Alexandre Courbot <acourbot@nvidia.com> |
gpu: nova-core: convert falcon registers to kernel register macro
Convert all PFALCON, PFALCON2 and PRISCV registers to use the kernel's
register macro and update the code accordingly.
Because they
gpu: nova-core: convert falcon registers to kernel register macro
Convert all PFALCON, PFALCON2 and PRISCV registers to use the kernel's
register macro and update the code accordingly.
Because they rely on the same types to implement relative registers,
they need to be updated in lockstep.
nova-core's local register macro is now unused, so remove it.
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-8-bdf172f0f6ca@nvidia.com
[acourbot@nvidia.com: remove unused import.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
show more ...
|
| ab2aad25 | 22-Jan-2026 |
Timur Tabi <ttabi@nvidia.com> |
gpu: nova-core: add Falcon HAL method load_method()
Some GPUs do not support using DMA to transfer code/data from system
memory to Falcon memory, and instead must use programmed I/O (PIO).
Add a fun
gpu: nova-core: add Falcon HAL method load_method()
Some GPUs do not support using DMA to transfer code/data from system
memory to Falcon memory, and instead must use programmed I/O (PIO).
Add a function to the Falcon HAL to indicate whether a given GPU's
Falcons support DMA for this purpose.
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260122222848.2555890-10-ttabi@nvidia.com
[acourbot@nvidia.com: add short code to call into the HAL.]
[acourbot@nvidia.com: make `dma_load` private as per feedback.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
show more ...
|
| a75718af | 22-Jan-2026 |
Timur Tabi <ttabi@nvidia.com> |
gpu: nova-core: add NV_PFALCON_FALCON_ENGINE::reset_engine()
Add a method for the NV_PFALCON_FALCON_ENGINE register that reset the
Falcon, and update the reset_eng() HAL functions to use it.
Signed
gpu: nova-core: add NV_PFALCON_FALCON_ENGINE::reset_engine()
Add a method for the NV_PFALCON_FALCON_ENGINE register that reset the
Falcon, and update the reset_eng() HAL functions to use it.
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260122222848.2555890-9-ttabi@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
show more ...
|
| 954b38fd | 22-Jan-2026 |
Timur Tabi <ttabi@nvidia.com> |
gpu: nova-core: Add basic Turing HAL
Add the basic HAL for recognizing Turing GPUs. This isn't enough
to support booting GSP-RM on Turing, but it's a start.
Note that GA100, which boots using the
gpu: nova-core: Add basic Turing HAL
Add the basic HAL for recognizing Turing GPUs. This isn't enough
to support booting GSP-RM on Turing, but it's a start.
Note that GA100, which boots using the same method as Turing, is not
supported yet.
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260122222848.2555890-8-ttabi@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
show more ...
|
| 173c99b8 | 07-Nov-2025 |
John Hubbard <jhubbard@nvidia.com> |
gpu: nova-core: apply the one "use" item per line policy
As per [1], we need one "use" item per line, in order to reduce merge
conflicts. Furthermore, we need a trailing ", //" in order to tell
rust
gpu: nova-core: apply the one "use" item per line policy
As per [1], we need one "use" item per line, in order to reduce merge
conflicts. Furthermore, we need a trailing ", //" in order to tell
rustfmt(1) to leave it alone.
This does that for the entire nova-core driver.
[1] https://docs.kernel.org/rust/coding-guidelines.html#imports
Acked-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
[acourbot@nvidia.com: remove imports already in prelude as pointed out
by Danilo.]
[acourbot@nvidia.com: remove a few unneeded trailing `//`.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Message-ID: <20251107021006.434109-1-jhubbard@nvidia.com>
show more ...
|
| 9a3c2f8a | 29-Oct-2025 |
Alexandre Courbot <acourbot@nvidia.com> |
gpu: nova-core: replace `as` with `from` conversions where possible
The `as` operator is best avoided as it silently drops bits if the
destination type is smaller that the source.
For data types wh
gpu: nova-core: replace `as` with `from` conversions where possible
The `as` operator is best avoided as it silently drops bits if the
destination type is smaller that the source.
For data types where this is clearly not the case, use `from` to
unambiguously signal that these conversions are lossless.
Acked-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Message-ID: <20251029-nova-as-v3-1-6a30c7333ad9@nvidia.com>
show more ...
|
| 09880996 | 18-Jul-2025 |
Alexandre Courbot <acourbot@nvidia.com> |
gpu: nova-core: register: add support for relative array registers
Add support for declaring arrays of registers available from a variable
base. This is effectively a combination of the relative and
gpu: nova-core: register: add support for relative array registers
Add support for declaring arrays of registers available from a variable
base. This is effectively a combination of the relative and array
registers features.
nova-core does not make much use of this yet, but it will become helpful
to have for GSP boot.
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20250718-nova-regs-v2-19-7b6a762aa1cd@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
show more ...
|
| 4092e1b4 | 24-Jun-2025 |
Alexandre Courbot <acourbot@nvidia.com> |
gpu: nova-core: replace `Duration` with `Delta`
The kernel's `Delta` type was not available when the `wait_on` function
was introduced. Now that it is, switch to it as it is more compact than
`Durat
gpu: nova-core: replace `Duration` with `Delta`
The kernel's `Delta` type was not available when the `wait_on` function
was introduced. Now that it is, switch to it as it is more compact than
`Duration` and cannot panic.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://lore.kernel.org/r/20250624-nova-delta-v1-1-b37d75a593ac@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
show more ...
|
| 43ad65ec | 24-Jun-2025 |
Danilo Krummrich <dakr@kernel.org> |
gpu: nova-core: consider `clippy::cast_lossless`
Fix all warnings caused by `clippy::cast_lossless`, which is going to be
enabled by [1].
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Miguel Ojed
gpu: nova-core: consider `clippy::cast_lossless`
Fix all warnings caused by `clippy::cast_lossless`, which is going to be
enabled by [1].
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20250615-ptr-as-ptr-v12-5-f43b024581e8@gmail.com [1]
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://lore.kernel.org/r/20250624132337.2242-2-dakr@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
show more ...
|
| 3606620b | 19-Jun-2025 |
Alexandre Courbot <acourbot@nvidia.com> |
gpu: nova-core: update and annotate TODO list
A few new dependencies are required to remove some of the TODO items:
- A way to safely convert from byte slices to types implementing
`FromBytes`,
-
gpu: nova-core: update and annotate TODO list
A few new dependencies are required to remove some of the TODO items:
- A way to safely convert from byte slices to types implementing
`FromBytes`,
- A way to obtain slices and write into a `CoherentAllocation`,
- Several improvements to the `register!()` macro,
- Alignment operations to powers of two, and an equivalent to the C
`fls`,
- Support for `xa_alloc` in the XAlloc bindings.
Some items have also become obsolete:
- The auxiliary bus abstractions have been implemented and are in use,
- The ELF utilities are not considered for being part of the core kernel
bindings anymore.
- VBIOS, falcon and GPU timer have been completed.
We now have quite a few TODO entries in the code, so annotate them with
a 4 letter code representing the corresponding task in `todo.rst`. This
allows to easily find which part of the code corresponds to a given
entry (and conversely).
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://lore.kernel.org/r/20250619-nova-frts-v6-24-ecf41ef99252@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
show more ...
|