Hopper (GH100) and Blackwell identification, including ELF
.fwsignature_* items.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
---
 drivers/gpu/nova-core/falcon/hal.rs   |  6 +++++-
 drivers/gpu/nova-core/fb/hal.rs       |  5 ++++-
 drivers/gpu/nova-core/firmware/gsp.rs |  3 +++
 drivers/gpu/nova-core/gpu.rs          | 18 ++++++++++++++++++
 4 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/nova-core/falcon/hal.rs b/drivers/gpu/nova-core/falcon/hal.rs
index 3bfb42684a0e..51615381b495 100644
--- a/drivers/gpu/nova-core/falcon/hal.rs
+++ b/drivers/gpu/nova-core/falcon/hal.rs
@@ -84,7 +84,11 @@ pub(super) fn falcon_hal<E: FalconEngine + 'static>(
         // TODO: support GA100. Its boot sequence is a lot like Turing, except that it handles the
         // FRTS steps differently (specifically, it skips FWSEC-FRTS).
         Architecture::Ampere if chipset == Chipset::GA100 => return Err(ENOTSUPP),
-        Architecture::Ampere | Architecture::Ada => {
+        Architecture::Ampere
+        | Architecture::Ada
+        | Architecture::Hopper
+        | Architecture::BlackwellGB10x
+        | Architecture::BlackwellGB20x => {
             KBox::new(ga102::Ga102::<E>::new(), GFP_KERNEL)? as KBox<dyn FalconHal<E>>
         }
     };
diff --git a/drivers/gpu/nova-core/fb/hal.rs b/drivers/gpu/nova-core/fb/hal.rs
index 5a6cb8221e78..3b3bad0feed0 100644
--- a/drivers/gpu/nova-core/fb/hal.rs
+++ b/drivers/gpu/nova-core/fb/hal.rs
@@ -36,6 +36,9 @@ pub(super) fn fb_hal(chipset: Chipset) -> &'static dyn FbHal {
         Architecture::Turing => tu102::TU102_HAL,
         Architecture::Ampere if chipset == Chipset::GA100 => ga100::GA100_HAL,
         Architecture::Ampere => ga102::GA102_HAL,
-        Architecture::Ada => ga102::GA102_HAL,
+        Architecture::Ada
+        | Architecture::Hopper
+        | Architecture::BlackwellGB10x
+        | Architecture::BlackwellGB20x => ga102::GA102_HAL,
     }
 }
diff --git a/drivers/gpu/nova-core/firmware/gsp.rs b/drivers/gpu/nova-core/firmware/gsp.rs
index 1fbc2b08123a..617ec2aaa93a 100644
--- a/drivers/gpu/nova-core/firmware/gsp.rs
+++ b/drivers/gpu/nova-core/firmware/gsp.rs
@@ -73,6 +73,9 @@ fn find_gsp_sigs_section(chipset: Chipset) -> &'static str {
             Architecture::Ampere if chipset == Chipset::GA100 => ".fwsignature_tu10x",
             Architecture::Ampere => ".fwsignature_ga10x",
             Architecture::Ada => ".fwsignature_ad10x",
+            Architecture::Hopper => ".fwsignature_gh10x",
+            Architecture::BlackwellGB10x => ".fwsignature_gb10x",
+            Architecture::BlackwellGB20x => ".fwsignature_gb20x",
         }
     }
 
diff --git a/drivers/gpu/nova-core/gpu.rs b/drivers/gpu/nova-core/gpu.rs
index 0f6fe9a1b955..20625e8e26b7 100644
--- a/drivers/gpu/nova-core/gpu.rs
+++ b/drivers/gpu/nova-core/gpu.rs
@@ -86,12 +86,22 @@ fn try_from(value: u32) -> Result<Self, Self::Error> {
     GA104 = 0x174,
     GA106 = 0x176,
     GA107 = 0x177,
+    // Hopper
+    GH100 = 0x180,
     // Ada
     AD102 = 0x192,
     AD103 = 0x193,
     AD104 = 0x194,
     AD106 = 0x196,
     AD107 = 0x197,
+    // Blackwell
+    GB100 = 0x1a0,
+    GB102 = 0x1a2,
+    GB202 = 0x1b2,
+    GB203 = 0x1b3,
+    GB205 = 0x1b5,
+    GB206 = 0x1b6,
+    GB207 = 0x1b7,
 });
 
 impl Chipset {
@@ -103,9 +113,14 @@ pub(crate) const fn arch(self) -> Architecture {
             Self::GA100 | Self::GA102 | Self::GA103 | Self::GA104 | Self::GA106 | Self::GA107 => {
                 Architecture::Ampere
             }
+            Self::GH100 => Architecture::Hopper,
             Self::AD102 | Self::AD103 | Self::AD104 | Self::AD106 | Self::AD107 => {
                 Architecture::Ada
             }
+            Self::GB100 | Self::GB102 => Architecture::BlackwellGB10x,
+            Self::GB202 | Self::GB203 | Self::GB205 | Self::GB206 | Self::GB207 => {
+                Architecture::BlackwellGB20x
+            }
         }
     }
 
@@ -137,7 +152,10 @@ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
     pub(crate) enum Architecture with TryFrom<Bounded<u32, 6>> {
         Turing = 0x16,
         Ampere = 0x17,
+        Hopper = 0x18,
         Ada = 0x19,
+        BlackwellGB10x = 0x1a,
+        BlackwellGB20x = 0x1b,
     }
 }
 
-- 
2.53.0

On Fri, 2026-04-10 at 19:49 -0700, John Hubbard wrote:
> +        | Architecture::BlackwellGB10x
> +        | Architecture::BlackwellGB20x => {

Can you add something to the patch description that explains why Blackwell, unlike all of the
olther architectures, is represented by two Architecture enums?