kernel/drivers/gpu/nova-core/gsp/boot.rs, branch linux-6.19.y

gpu: nova-core: gsp: Retrieve GSP static info to gather GPU information

2025-11-15T12:54:18Z

After GSP initialization is complete, retrieve the static configuration information from GSP-RM. This information includes GPU name, capabilities, memory configuration, and other properties. On some GPU variants, it is also required to do this for initialization to complete. Signed-off-by: Alistair Popple Co-developed-by: Joel Fernandes Signed-off-by: Joel Fernandes Reviewed-by: Lyude Paul [acourbot@nvidia.com: properly abstract the command's bindings, add relevant methods, make str_from_null_terminated return an Option, fix size of GPU name array.] Co-developed-by: Alexandre Courbot Signed-off-by: Alexandre Courbot Message-ID: <20251114195552.739371-14-joelagnelf@nvidia.com>

gpu: nova-core: gsp: Wait for gsp initialization to complete

2025-11-15T12:54:18Z

This adds the GSP init done command to wait for GSP initialization to complete. Once this command has been received the GSP is fully operational and will respond properly to normal RPC commands. Signed-off-by: Alistair Popple Co-developed-by: Joel Fernandes Signed-off-by: Joel Fernandes Reviewed-by: Lyude Paul [acourbot@nvidia.com: move new definitions to end of commands.rs, rename to `wait_gsp_init_done` and remove timeout argument.] Signed-off-by: Alexandre Courbot Message-ID: <20251114195552.739371-13-joelagnelf@nvidia.com>

gpu: nova-core: Implement the GSP sequencer

2025-11-15T12:05:50Z

Implement the GSP sequencer which culminates in INIT_DONE message being received from the GSP indicating that the GSP has successfully booted. This is just initial sequencer support, the actual commands will be added in the next patches. Signed-off-by: Joel Fernandes [acourbot@nvidia.com: move GspSequencerInfo definition before its impl blocks and rename it to GspSequence, adapt imports in sequencer.rs to new formatting rules, remove `timeout` argument to harmonize with other commands.] Signed-off-by: Alexandre Courbot Message-ID: <20251114195552.739371-8-joelagnelf@nvidia.com>

gpu: nova-core: gsp: Boot GSP

2025-11-14T11:25:57Z

Boot the GSP to the RISC-V active state. Completing the boot requires running the CPU sequencer which will be added in a future commit. Reviewed-by: Lyude Paul Signed-off-by: Alistair Popple Signed-off-by: Alexandre Courbot Message-ID: <20251110-gsp_boot-v9-15-8ae4058e3c0e@nvidia.com>

gpu: nova-core: gsp: Add SetRegistry command

2025-11-14T11:25:57Z

Add support for sending the SetRegistry command, which is critical to GSP initialization. The RM registry is serialized into a packed format and sent via the command queue. For now only three parameters which are required to boot GSP are hardcoded. In the future a kernel module parameter will be added to enable other parameters to be added. Signed-off-by: Alistair Popple [acourbot@nvidia.com: split into its own patch.] Signed-off-by: Alexandre Courbot Message-ID: <20251110-gsp_boot-v9-12-8ae4058e3c0e@nvidia.com>

gpu: nova-core: gsp: Add SetSystemInfo command

2025-11-14T11:25:57Z

Add support for sending the SetSystemInfo command, which provides required hardware information to the GSP and is critical to its initialization. Signed-off-by: Alistair Popple Signed-off-by: Alexandre Courbot Message-ID: <20251110-gsp_boot-v9-11-8ae4058e3c0e@nvidia.com>

gpu: nova-core: gsp: Create wpr metadata

2025-11-14T11:25:56Z

The GSP requires some pieces of metadata to boot. These are passed in a struct which the GSP transfers via DMA. Create this struct and get a handle to it for future use when booting the GSP. Signed-off-by: Alistair Popple Co-developed-by: Alexandre Courbot Signed-off-by: Alexandre Courbot Message-ID: <20251110-gsp_boot-v9-5-8ae4058e3c0e@nvidia.com>

gpu: nova-core: compute layout of more framebuffer regions required for GSP

2025-11-14T02:05:58Z

Compute more of the required FB layout information to boot the GSP firmware. This information is dependent on the firmware itself, so first we need to import and abstract the required firmware bindings in the `nvfw` module. Then, a new FB HAL method is introduced in `fb::hal` that uses these bindings and hardware information to compute the correct layout information. This information is then used in `fb` and the result made visible in `FbLayout`. These 3 things are grouped into the same patch to avoid lots of unused warnings that would be tedious to work around. As they happen in different files, they should not be too difficult to track separately. Acked-by: Danilo Krummrich Signed-off-by: Alexandre Courbot Message-ID: <20251110-gsp_boot-v9-1-8ae4058e3c0e@nvidia.com>

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: firmware: process and prepare the GSP firmware

2025-09-13T14:17:38Z

The GSP firmware is a binary blob that is verified, loaded, and run by the GSP bootloader. Its presentation is a bit peculiar as the GSP bootloader expects to be given a DMA address to a 3-levels page table mapping the GSP firmware at address 0 of its own address space. Prepare such a structure containing the DMA-mapped firmware as well as the DMA-mapped page tables, and a way to obtain the DMA handle of the level 0 page table. Then, move the GSP firmware instance from the `Firmware` struct to the `start_gsp` method since it doesn't need to be kept after the GSP is booted. As we are performing the required ELF section parsing and radix3 page table building, remove these items from the TODO file. Acked-by: Danilo Krummrich Link: https://lore.kernel.org/r/20250913-nova_firmware-v6-7-9007079548b0@nvidia.com Signed-off-by: Alexandre Courbot