[PATCH 27/31] gpu: nova-core: Hopper/Blackwell: skip GFW boot waiting

[John Hubbard]

Hopper and Blackwell GPUs use FSP-based secure boot and do not require
waiting for GFW_BOOT completion. Skip this step for these architectures.

Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
---
 drivers/gpu/nova-core/gpu.rs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/nova-core/gpu.rs b/drivers/gpu/nova-core/gpu.rs
index 8fdce488612a..fe078547c9b3 100644
--- a/drivers/gpu/nova-core/gpu.rs
+++ b/drivers/gpu/nova-core/gpu.rs
@@ -320,8 +320,13 @@ pub(crate) fn new<'a>(
 
             // We must wait for GFW_BOOT completion before doing any significant setup on the GPU.
             _: {
-                gfw::wait_gfw_boot_completion(bar)
-                    .inspect_err(|_| dev_err!(pdev.as_ref(), "GFW boot did not complete"))?;
+                if matches!(
+                    spec.chipset.arch(),
+                    Architecture::Turing | Architecture::Ampere | Architecture::Ada
+                ) {
+                    gfw::wait_gfw_boot_completion(bar)
+                        .inspect_err(|_| dev_err!(pdev.as_ref(), "GFW boot did not complete"))?;
+                }
             },
 
             sysmem_flush: SysmemFlush::register(pdev.as_ref(), bar, spec.chipset)?,
-- 
2.52.0