gpu: nova-core: load and run FWSEC-FRTS

With all the required pieces in place, load FWSEC-FRTS onto the GSP
falcon, run it, and check that it successfully carved out the WPR2
region out of framebuffer memory.

Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://lore.kernel.org/r/20250619-nova-frts-v6-23-ecf41ef99252@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

1 files changed, 25 insertions, 0 deletions

diff --git a/drivers/gpu/nova-core/firmware/fwsec.rs b/drivers/gpu/nova-core/firmware/fwsec.rs
index de179c201139..6058598ce76e 100644
--- a/drivers/gpu/nova-core/firmware/fwsec.rs
+++ b/drivers/gpu/nova-core/firmware/fwsec.rs
@@ -395,4 +395,29 @@ impl FwsecFirmware {
             ucode: ucode_signed,
         })
     }
+
+    /// Loads the FWSEC firmware into `falcon` and execute it.
+    pub(crate) fn run(
+        &self,
+        dev: &Device<device::Bound>,
+        falcon: &Falcon<Gsp>,
+        bar: &Bar0,
+    ) -> Result<()> {
+        // Reset falcon, load the firmware, and run it.
+        falcon
+            .reset(bar)
+            .inspect_err(|e| dev_err!(dev, "Failed to reset GSP falcon: {:?}\n", e))?;
+        falcon
+            .dma_load(bar, self)
+            .inspect_err(|e| dev_err!(dev, "Failed to load FWSEC firmware: {:?}\n", e))?;
+        let (mbox0, _) = falcon
+            .boot(bar, Some(0), None)
+            .inspect_err(|e| dev_err!(dev, "Failed to boot FWSEC firmware: {:?}\n", e))?;
+        if mbox0 != 0 {
+            dev_err!(dev, "FWSEC firmware returned error {}\n", mbox0);
+            Err(EIO)
+        } else {
+            Ok(())
+        }
+    }
 }