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96c377e999
Currently, the GSP is left running after the driver is unbound. This is not great for several reasons, notably that it can still access shared memory areas that the kernel will now reclaim (especially problematic on setups without an IOMMU). Fix this by sending the `UNLOADING_GUEST_DRIVER` GSP command when the `Gpu` is dropped. This stops the GSP and lets us proceed with the rest of the unbind sequence in a later patch. Reviewed-by: Eliot Courtney <ecourtney@nvidia.com> Co-developed-by: Eliot Courtney <ecourtney@nvidia.com> Signed-off-by: Eliot Courtney <ecourtney@nvidia.com> Reviewed-by: Danilo Krummrich <dakr@kernel.org> Link: https://patch.msgid.link/20260529-nova-unload-v7-2-678f39209e00@nvidia.com [acourbot: `Result<()>` -> `Result`] Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>