Nouveau - Jun 2025 - [PATCH v6 00/24] nova-core: run FWSEC-FRTS to perform first stage of GSP initialization

On Thu, Jun 19, 2025 at 10:23:44PM +0900, Alexandre Courbot wrote:

Applied to nova-next, thanks!
> Alexandre Courbot (21):
>       rust: make ETIMEDOUT error available
>       rust: sizes: add constants up to SZ_2G
>       gpu: nova-core: use absolute paths in register!() macro
>       gpu: nova-core: add delimiter for helper rules in register!() macro
>       gpu: nova-core: expose the offset of each register as a type constant
>       gpu: nova-core: allow register aliases
>       gpu: nova-core: increase BAR0 size to 16MB
>       gpu: nova-core: add helper function to wait on condition
>       gpu: nova-core: wait for GFW_BOOT completion
  [ Slightly adjust comments in wait_gfw_boot_completion(). - Danilo ]
>       gpu: nova-core: add DMA object struct
>       gpu: nova-core: register sysmem flush page
  [ * Use kernel::page::PAGE_SIZE instead of kernel::bindings::PAGE_SIZE.
    * Get rid of the Option for SysmemFlush.
    * Slightly reword SysmemFlush doc-comments.

    - Danilo ]
>       gpu: nova-core: add falcon register definitions and base code
>       gpu: nova-core: firmware: add ucode descriptor used by FWSEC-FRTS
>       gpu: nova-core: compute layout of the FRTS region
  [ In doc-comment of FbLayout s/bootup process/boot process/ - Danilo ]
>       gpu: nova-core: add types for patching firmware binaries
>       gpu: nova-core: extract FWSEC from BIOS and patch it to run
FWSEC-FRTS
>       gpu: nova-core: load and run FWSEC-FRTS
>       gpu: nova-core: update and annotate TODO list
> 
> Joel Fernandes (3):
>       gpu: nova-core: vbios: Add base support for VBIOS construction and
iteration
  [ Replace extend_with() and copy_from_slice() with extend_from_slice();
    re-format and use markdown in comments. - Danilo ]
>       gpu: nova-core: vbios: Add support to look up PMU table in FWSEC
  [ Re-format and use markdown in comments. - Danilo ]
>       gpu: nova-core: vbios: Add support for FWSEC ucode extraction
  [ Re-format and use markdown in comments. - Danilo ]

There's one thing that would be nice to fix subsequently, which is properly
resetting the GPU. Currently, it needs a power cycle to be able to probe
successfully after unbinding the driver.

- Danilo

On Tue Jun 24, 2025 at 6:01 AM JST, Danilo Krummrich
wrote:
> There's one thing that would be nice to fix subsequently, which is
properly
> resetting the GPU. Currently, it needs a power cycle to be able to probe
> successfully after unbinding the driver.
Yes, what I usually do is the following after unloading Nova:

    echo 1 | sudo tee /sys/bus/pci/devices/0000:01:00.0/reset

and this allows it to probe again. Maybe we want to add some equivalent
programmatically in the driver probe function?