gpu: nova-core: move lifetime to `Bar0`

Currently Nova code uses `&'a Bar0` a lot. This is `&'a Mmio`, where `Mmio`
represents an owned MMIO region; this type only exists as a target for
`Deref` so

gpu: nova-core: move lifetime to `Bar0`

Currently Nova code uses `&'a Bar0` a lot. This is `&'a Mmio`, where `Mmio`
represents an owned MMIO region; this type only exists as a target for
`Deref` so `Bar` and `IoMem` can share code and should be avoided to be
named directly. The upcoming I/O projection series would make `Io` trait
much simpler to implement, and thus the owned MMIO type would be removed
in favour of direct `Io` implementation on `Bar` and `IoMem`.

Add lifetime parameter to `Bar0<'a>` and change it to be alias of `&'a
pci::Bar<'a, ..>`. This also prepares Nova core so that when I/O projection
series land, this could be changed to using a MMIO view type directly which
avoids double indirection.

Signed-off-by: Gary Guo <gary@garyguo.net>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Link: https://patch.msgid.link/20260602170416.2268531-1-gary@kernel.org
[ Rebase onto latest drm-rust-next (Blackwell enablement). - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

show more ...

gpu: nova-core: Hopper/Blackwell: add GSP lockdown release polling

On Hopper and Blackwell, FSP boots GSP with hardware lockdown enabled.
After FSP Chain of Trust completes, the driver must poll for

gpu: nova-core: Hopper/Blackwell: add GSP lockdown release polling

On Hopper and Blackwell, FSP boots GSP with hardware lockdown enabled.
After FSP Chain of Trust completes, the driver must poll for lockdown
release before proceeding with GSP initialization. Add the register
bit and helper functions needed for this polling.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Link: https://patch.msgid.link/20260603-b4-blackwell-v13-7-d9f3a06939e0@nvidia.com
[acourbot: fix `lockdown_released` logic and add explanatory comments.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>

show more ...

gpu: nova-core: Hopper/Blackwell: add FSP Chain of Trust boot

Build and send the Chain of Trust message to FSP, bundling the
DMA-coherent boot parameters that FSP reads at boot time.

Signed-off-by:

gpu: nova-core: Hopper/Blackwell: add FSP Chain of Trust boot

Build and send the Chain of Trust message to FSP, bundling the
DMA-coherent boot parameters that FSP reads at boot time.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Link: https://patch.msgid.link/20260603-b4-blackwell-v13-6-d9f3a06939e0@nvidia.com
[acourbot: rename `frts_offset` to `frts_vidmem_offset`.]
[acourbot: add note about frts_sysmem_* CoT members.]
Co-developed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>

show more ...

gpu: nova-core: Hopper/Blackwell: add FSP send/receive messaging

FSP exchanges are request/response: the driver sends an MCTP/NVDM
message and must match the reply against the request before acting

gpu: nova-core: Hopper/Blackwell: add FSP send/receive messaging

FSP exchanges are request/response: the driver sends an MCTP/NVDM
message and must match the reply against the request before acting on
it. Add the synchronous send-and-wait path that validates the response
transport and message headers and confirms the reply corresponds to the
request that was sent.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Link: https://patch.msgid.link/20260603-b4-blackwell-v13-4-d9f3a06939e0@nvidia.com
[acourbot: make `MessageToFsp` private.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>

show more ...

gpu: nova-core: Hopper/Blackwell: add FSP secure boot completion waiting

Hopper and Blackwell use FSP instead of SEC2 for secure boot. The
driver must wait for FSP secure boot to complete before con

gpu: nova-core: Hopper/Blackwell: add FSP secure boot completion waiting

Hopper and Blackwell use FSP instead of SEC2 for secure boot. The
driver must wait for FSP secure boot to complete before continuing
with GSP bring-up. Poll for boot success with a 5-second timeout, and
return the FSP interface only on success so that later Chain of Trust
operations cannot run before FSP is ready. The interface owns the FSP
falcon and the FMC firmware.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
Link: https://patch.msgid.link/20260602032111.224790-13-jhubbard@nvidia.com
[acourbot: use `inspect_err` instead of `map_err` and display actual error]
[acourbot: limit visibility of `fsp_hal` to `super``]
Co-developed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>

show more ...