linux-toradex.git/drivers/gpu/nova-core/falcon, branch master Linux kernel for Apalis and Colibri modules gpu: nova-core: convert falcon registers to kernel register macro 2026-03-26T06:09:44+00:00 Alexandre Courbot acourbot@nvidia.com 2026-03-25T02:46:21+00:00 38f7e5450ebfc6f2e046a249a3f629ea7bec8c31 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> 
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>
gpu: nova-core: convert FUSE registers to kernel register macro 2026-03-26T06:08:28+00:00 Alexandre Courbot acourbot@nvidia.com 2026-03-25T02:46:19+00:00 1a8f58c5e125d61c597d420237750d2dcea32ce8 Convert all FUSE registers to use the kernel's register macro and update the code accordingly. Reviewed-by: Eliot Courtney <ecourtney@nvidia.com> Reviewed-by: Gary Guo <gary@garyguo.net> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://patch.msgid.link/20260325-b4-nova-register-v4-6-bdf172f0f6ca@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> 
Convert all FUSE registers to use the kernel's register macro and update
the code accordingly.

Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-6-bdf172f0f6ca@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
gpu: nova-core: convert GC6 registers to kernel register macro 2026-03-26T06:08:28+00:00 Alexandre Courbot acourbot@nvidia.com 2026-03-25T02:46:18+00:00 ffabad08e46e425781a5d3a7f9e6a64c12e36de2 Convert all GC6 registers to use the kernel's register macro and update the code accordingly. Reviewed-by: Eliot Courtney <ecourtney@nvidia.com> Reviewed-by: Gary Guo <gary@garyguo.net> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://patch.msgid.link/20260325-b4-nova-register-v4-5-bdf172f0f6ca@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> 
Convert all GC6 registers to use the kernel's register macro and update
the code accordingly.

Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260325-b4-nova-register-v4-5-bdf172f0f6ca@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
gpu: nova-core: add PIO support for loading firmware images 2026-03-09T01:39:07+00:00 Timur Tabi ttabi@nvidia.com 2026-03-06T04:52:43+00:00 c1d2f7471ba7a21eb3c68b8405365f7e1eac5c9d Turing and GA100 use programmed I/O (PIO) instead of DMA to upload firmware images into Falcon memory. Signed-off-by: Timur Tabi <ttabi@nvidia.com> Co-developed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://patch.msgid.link/20260306-turing_prep-v11-6-8f0042c5d026@nvidia.com 
Turing and GA100 use programmed I/O (PIO) instead of DMA to upload
firmware images into Falcon memory.

Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Co-developed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260306-turing_prep-v11-6-8f0042c5d026@nvidia.com
gpu: nova-core: add Falcon HAL method load_method() 2026-01-24T01:48:59+00:00 Timur Tabi ttabi@nvidia.com 2026-01-22T22:28:44+00:00 ab2aad252fe21347674cf969a5e9d44d69e403bb 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> 
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>
gpu: nova-core: add NV_PFALCON_FALCON_ENGINE::reset_engine() 2026-01-23T23:45:13+00:00 Timur Tabi ttabi@nvidia.com 2026-01-22T22:28:43+00:00 a75718afc9a5c61d9266d5d0010228a6a3bb7233 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> 
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>
gpu: nova-core: Add basic Turing HAL 2026-01-23T23:45:13+00:00 Timur Tabi ttabi@nvidia.com 2026-01-22T22:28:42+00:00 954b38fd0a8f5feaa44a9c5c05ed771815949d95 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> 
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>
gpu: nova-core: move some functions into the HAL 2026-01-23T23:45:13+00:00 Timur Tabi ttabi@nvidia.com 2026-01-22T22:28:41+00:00 82ed3243219d160601fdb98742633bee7dc6f360 A few Falcon methods are actually GPU-specific, so move them into the HAL. 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/20260122222848.2555890-7-ttabi@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> 
A few Falcon methods are actually GPU-specific, so move them
into the HAL.

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/20260122222848.2555890-7-ttabi@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
gpu: nova-core: add missing newlines to several print strings 2026-01-12T13:44:06+00:00 Timur Tabi ttabi@nvidia.com 2026-01-07T20:16:47+00:00 654826aa4a8f25cf825ad9254f37e6cb5092098f 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 <ttabi@nvidia.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Link: https://patch.msgid.link/20260107201647.2490140-2-ttabi@nvidia.com Signed-off-by: Danilo Krummrich <dakr@kernel.org> 
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 <ttabi@nvidia.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Link: https://patch.msgid.link/20260107201647.2490140-2-ttabi@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
gpu: nova-core: sequencer: Implement core resume operation 2025-11-15T12:54:18+00:00 Joel Fernandes joelagnelf@nvidia.com 2025-11-14T19:55:50+00:00 774109857b70e4af0908ce20d99e913ba5ba611a Implement core resume operation. This is the last step of the sequencer resulting in resume of the GSP and proceeding to INIT_DONE stage of GSP boot. Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Message-ID: <20251114195552.739371-12-joelagnelf@nvidia.com> 
Implement core resume operation. This is the last step of the sequencer
resulting in resume of the GSP and proceeding to INIT_DONE stage of GSP
boot.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Message-ID: <20251114195552.739371-12-joelagnelf@nvidia.com>