[PATCH 2/3] gpu: nova-core: add Architecture::uses_sec2() helper

[Eliot Courtney]

This will be used in the following patch as common logic.

Signed-off-by: Eliot Courtney <ecourtney@xxxxxxxxxx>
---
 drivers/gpu/nova-core/gpu.rs      | 7 +++++++
 drivers/gpu/nova-core/gsp/boot.rs | 5 +----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/nova-core/gpu.rs b/drivers/gpu/nova-core/gpu.rs
index 2bcaa7bc5125..674dc286162a 100644
--- a/drivers/gpu/nova-core/gpu.rs
+++ b/drivers/gpu/nova-core/gpu.rs
@@ -180,6 +180,13 @@ pub(crate) enum Architecture with TryFrom<Bounded<u32, 6>> {
 }
 
 impl Architecture {
+    /// Returns `true` if this architecture uses SEC2 to boot GSP.
+    ///
+    /// Turing/Ampere/Ada use FWSEC + SEC2 booter firmware. Hopper and later use FSP instead.
+    pub(crate) const fn uses_sec2(&self) -> bool {
+        matches!(self, Self::Turing | Self::Ampere | Self::Ada)
+    }
+
     /// Returns the DMA mask supported by this architecture.
     pub(crate) const fn dma_mask(&self) -> DmaMask {
         match self {
diff --git a/drivers/gpu/nova-core/gsp/boot.rs b/drivers/gpu/nova-core/gsp/boot.rs
index e6d8b848ec46..1aac634c3b67 100644
--- a/drivers/gpu/nova-core/gsp/boot.rs
+++ b/drivers/gpu/nova-core/gsp/boot.rs
@@ -332,10 +332,7 @@ pub(crate) fn boot(
         sec2_falcon: &Falcon<Sec2>,
     ) -> Result {
         let dev = pdev.as_ref();
-        let uses_sec2 = matches!(
-            chipset.arch(),
-            Architecture::Turing | Architecture::Ampere | Architecture::Ada
-        );
+        let uses_sec2 = chipset.arch().uses_sec2();
 
         let gsp_fw = KBox::pin_init(GspFirmware::new(dev, chipset, FIRMWARE_VERSION), GFP_KERNEL)?;
 

-- 
2.53.0