sugar/linux
1
0
Fork 0
Code Activity

gpu: nova-core: remove an unnecessary register read: HWCFG1

Browse Source 
This register read is not required in order to bring up any of the GPUs,
and it is read too early on Hopper/Blackwell+ GPUs anyway. So just stop
doing this.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Message-ID: <20251025014050.585153-2-jhubbard@nvidia.com>
This commit is contained in:
John Hubbard
2025-10-24 18:40:49 -07:00
committed by Alexandre Courbot
parent f6797dca29
commit 1784fb79d6
1 changed files with 0 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/nova-core/falcon.rs
View File

@@ -371,11 +371,6 @@ impl<E: FalconEngine + 'static> Falcon<E> {
bar: &Bar0,
need_riscv: bool,
) -> Result<Self> {
let hwcfg1 = regs::NV_PFALCON_FALCON_HWCFG1::read(bar, &E::ID);
// Check that the revision and security model contain valid values.
let _ = hwcfg1.core_rev()?;
let _ = hwcfg1.security_model()?;
if need_riscv {
let hwcfg2 = regs::NV_PFALCON_FALCON_HWCFG2::read(bar, &E::ID);
if !hwcfg2.riscv() {