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

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 <apopple@nvidia.com>
Co-developed-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
[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 <acourbot@nvidia.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Message-ID: <20251114195552.739371-14-joelagnelf@nvidia.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/gpu/nova-core/gsp/boot.rs b/drivers/gpu/nova-core/gsp/boot.rs
index 0845d0906ca1..54937606b5b0 100644
--- a/drivers/gpu/nova-core/gsp/boot.rs
+++ b/drivers/gpu/nova-core/gsp/boot.rs
@@ -239,6 +239,14 @@ impl super::Gsp {
         // Wait until GSP is fully initialized.
         commands::wait_gsp_init_done(&mut self.cmdq)?;
 
+        // Obtain and display basic GPU information.
+        let info = commands::get_gsp_info(&mut self.cmdq, bar)?;
+        dev_info!(
+            pdev.as_ref(),
+            "GPU name: {}\n",
+            info.gpu_name().unwrap_or("invalid GPU name")
+        );
+
         Ok(())
     }
 }