linux-kernel - [PATCH] nova-core: Ada: basic GPU identification

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Message-ID: <20251025012017.573078-1-jhubbard@nvidia.com>
Date: Fri, 24 Oct 2025 18:20:17 -0700
From: John Hubbard <jhubbard@...dia.com>
To: Danilo Krummrich <dakr@...nel.org>
Cc: Alexandre Courbot <acourbot@...dia.com>,
	Joel Fernandes <joelagnelf@...dia.com>,
	Timur Tabi <ttabi@...dia.com>,
	Alistair Popple <apopple@...dia.com>,
	Edwin Peer <epeer@...dia.com>,
	Zhi Wang <zhiw@...dia.com>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Boqun Feng <boqun.feng@...il.com>,
	Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <lossin@...nel.org>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>,
	Trevor Gross <tmgross@...ch.edu>,
	nouveau@...ts.freedesktop.org,
	rust-for-linux@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	John Hubbard <jhubbard@...dia.com>
Subject: [PATCH] nova-core: Ada: basic GPU identification

...which is sufficient to make Ada GPUs work, because they use the
pre-existing Ampere GPU code, unmodified.

Tested on AD102 (RTX 6000 Ada).

Signed-off-by: John Hubbard <jhubbard@...dia.com>
---

This applies cleanly to today's drm-rust-next.

thanks,
John Hubbard

 drivers/gpu/nova-core/falcon/hal.rs   | 2 +-
 drivers/gpu/nova-core/firmware/gsp.rs | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/nova-core/falcon/hal.rs b/drivers/gpu/nova-core/falcon/hal.rs
index bba288455617..c6c71db1bb70 100644
--- a/drivers/gpu/nova-core/falcon/hal.rs
+++ b/drivers/gpu/nova-core/falcon/hal.rs
@@ -44,7 +44,7 @@ pub(super) fn falcon_hal<E: FalconEngine + 'static>(
     use Chipset::*;
 
     let hal = match chipset {
-        GA102 | GA103 | GA104 | GA106 | GA107 => {
+        GA102 | GA103 | GA104 | GA106 | GA107 | AD102 | AD103 | AD104 | AD106 | AD107 => {
             KBox::new(ga102::Ga102::<E>::new(), GFP_KERNEL)? as KBox<dyn FalconHal<E>>
         }
         _ => return Err(ENOTSUPP),
diff --git a/drivers/gpu/nova-core/firmware/gsp.rs b/drivers/gpu/nova-core/firmware/gsp.rs
index 6b0761460a57..24c3ea698940 100644
--- a/drivers/gpu/nova-core/firmware/gsp.rs
+++ b/drivers/gpu/nova-core/firmware/gsp.rs
@@ -150,6 +150,7 @@ pub(crate) fn new<'a, 'b>(
 
         let sigs_section = match chipset.arch() {
             Architecture::Ampere => ".fwsignature_ga10x",
+            Architecture::Ada => ".fwsignature_ad10x",
             _ => return Err(ENOTSUPP),
         };
         let signatures = elf::elf64_section(fw.data(), sigs_section)

base-commit: d3917368ebc5cd89d7d08eab4673e5c4c73ff42f
-- 
2.51.1