linux/drivers/gpu/nova-core/falcon/hal, branch master

gpu: nova-core: convert falcon registers to kernel register macro

2026-03-26T06:09:44Z

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 Acked-by: Danilo Krummrich 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

gpu: nova-core: convert FUSE registers to kernel register macro

2026-03-26T06:08:28Z

Convert all FUSE registers to use the kernel's register macro and update the code accordingly. Reviewed-by: Eliot Courtney Reviewed-by: Gary Guo Acked-by: Danilo Krummrich Link: https://patch.msgid.link/20260325-b4-nova-register-v4-6-bdf172f0f6ca@nvidia.com Signed-off-by: Alexandre Courbot

gpu: nova-core: add Falcon HAL method load_method()

2026-01-24T01:48:59Z

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 Reviewed-by: Gary Guo Acked-by: Danilo Krummrich 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

gpu: nova-core: add NV_PFALCON_FALCON_ENGINE::reset_engine()

2026-01-23T23:45:13Z

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 Reviewed-by: Gary Guo Acked-by: Danilo Krummrich Link: https://patch.msgid.link/20260122222848.2555890-9-ttabi@nvidia.com Signed-off-by: Alexandre Courbot

gpu: nova-core: Add basic Turing HAL

2026-01-23T23:45:13Z

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 Reviewed-by: John Hubbard Reviewed-by: Gary Guo Acked-by: Danilo Krummrich Link: https://patch.msgid.link/20260122222848.2555890-8-ttabi@nvidia.com Signed-off-by: Alexandre Courbot

gpu: nova-core: move some functions into the HAL

2026-01-23T23:45:13Z

A few Falcon methods are actually GPU-specific, so move them into the HAL. Signed-off-by: Timur Tabi Reviewed-by: John Hubbard Reviewed-by: Gary Guo Acked-by: Danilo Krummrich Link: https://patch.msgid.link/20260122222848.2555890-7-ttabi@nvidia.com Signed-off-by: Alexandre Courbot

gpu: nova-core: add missing newlines to several print strings

2026-01-12T13:44:06Z

Although the dev_xx!() macro calls do not technically require terminating newlines for the format strings, they should be added anyway to maintain consistency, both within Rust code and with the C versions. Signed-off-by: Timur Tabi Reviewed-by: John Hubbard Link: https://patch.msgid.link/20260107201647.2490140-2-ttabi@nvidia.com Signed-off-by: Danilo Krummrich

gpu: nova-core: apply the one "use" item per line policy

2025-11-07T14:10:44Z

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 Signed-off-by: John Hubbard [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 Message-ID: <20251107021006.434109-1-jhubbard@nvidia.com>

gpu: nova-core: replace `as` with `from` conversions where possible

2025-10-30T01:35:34Z

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 Signed-off-by: Alexandre Courbot Message-ID: <20251029-nova-as-v3-1-6a30c7333ad9@nvidia.com>

gpu: nova-core: replace wait_on with kernel equivalents

2025-10-25T04:14:21Z

wait_on was a temporary helper function waiting for a kernel crate equivalent. Now that read_poll_timeout and fsleep are available, use them and remove wait_on. Acked-by: Danilo Krummrich Signed-off-by: Alexandre Courbot Message-ID: <20251020-nova_wait_on-v1-1-2eb87fb38d14@nvidia.com>