From a47e2cd4b1a9184330d43a4dba21e67548eda232 Mon Sep 17 00:00:00 2001
From: John Hubbard <jhubbard@nvidia.com>
Date: Fri, 10 Apr 2026 19:49:28 -0700
Subject: [PATCH] gpu: nova-core: Hopper/Blackwell: basic GPU identification

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

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260411024953.473149-4-jhubbard@nvidia.com
[acourbot: add separators for both Blackwell architectures in Chipset
 definition.]
[acourbot: make Gsp::boot() return `ENOTSUPP` on new architectures.]
Signed-off-by: Alexandre Courbot <acourbot@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          | 19 +++++++++++++++++++
 drivers/gpu/nova-core/gsp/boot.rs     | 13 ++++++++++++-
 5 files changed, 43 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/nova-core/falcon/hal.rs b/drivers/gpu/nova-core/falcon/hal.rs
index f75b5c315d62..a524c8096b67 100644
--- a/drivers/gpu/nova-core/falcon/hal.rs
+++ b/drivers/gpu/nova-core/falcon/hal.rs
@@ -85,7 +85,11 @@ pub(super) fn falcon_hal<E: FalconEngine + 'static>(
         Architecture::Ampere if chipset == Chipset::GA100 => {
             KBox::new(tu102::Tu102::<E>::new(), GFP_KERNEL)? as KBox<dyn FalconHal<E>>
         }
-        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 6f928052d0c0..8b192a503363 100644
--- a/drivers/gpu/nova-core/fb/hal.rs
+++ b/drivers/gpu/nova-core/fb/hal.rs
@@ -39,6 +39,9 @@ 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 71b238b76349..e576bc8a9b1c 100644
--- a/drivers/gpu/nova-core/firmware/gsp.rs
+++ b/drivers/gpu/nova-core/firmware/gsp.rs
@@ -72,6 +72,9 @@ fn find_gsp_sigs_section(chipset: Chipset) -> &'static str {
             Architecture::Ampere if chipset == Chipset::GA100 => ".fwsignature_ga100",
             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..6a01b85f9489 100644
--- a/drivers/gpu/nova-core/gpu.rs
+++ b/drivers/gpu/nova-core/gpu.rs
@@ -86,12 +86,23 @@ 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 GB10x
+    GB100 = 0x1a0,
+    GB102 = 0x1a2,
+    // Blackwell GB20x
+    GB202 = 0x1b2,
+    GB203 = 0x1b3,
+    GB205 = 0x1b5,
+    GB206 = 0x1b6,
+    GB207 = 0x1b7,
 });
 
 impl Chipset {
@@ -103,9 +114,14 @@ 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 +153,10 @@ 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,
     }
 }
 
diff --git a/drivers/gpu/nova-core/gsp/boot.rs b/drivers/gpu/nova-core/gsp/boot.rs
index 5c56f0539dd7..df105ef4b371 100644
--- a/drivers/gpu/nova-core/gsp/boot.rs
+++ b/drivers/gpu/nova-core/gsp/boot.rs
@@ -31,7 +31,10 @@
         gsp::GspFirmware,
         FIRMWARE_VERSION, //
     },
-    gpu::Chipset,
+    gpu::{
+        Architecture,
+        Chipset, //
+    },
     gsp::{
         commands,
         sequencer::{
@@ -146,6 +149,14 @@ pub(crate) fn boot(
         gsp_falcon: &Falcon<Gsp>,
         sec2_falcon: &Falcon<Sec2>,
     ) -> Result {
+        // The FSP boot process of Hopper+ is not supported for now.
+        if matches!(
+            chipset.arch(),
+            Architecture::Hopper | Architecture::BlackwellGB10x | Architecture::BlackwellGB20x
+        ) {
+            return Err(ENOTSUPP);
+        }
+
         let dev = pdev.as_ref();
 
         let bios = Vbios::new(dev, bar)?;