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charset="utf-8" Hopper and Blackwell GPUs use FSP-based secure boot and do not require waiting for GFW_BOOT completion. Skip this step for these architectures, and in fact for all future architectures, because we have moved on: there will not be any future GPUs using the older GFW_BOOT system. Cc: Danilo Krummrich Signed-off-by: John Hubbard --- drivers/gpu/nova-core/gpu.rs | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/nova-core/gpu.rs b/drivers/gpu/nova-core/gpu.rs index efd1765b4f86..21a8c6c2d96b 100644 --- a/drivers/gpu/nova-core/gpu.rs +++ b/drivers/gpu/nova-core/gpu.rs @@ -177,6 +177,15 @@ pub(crate) const fn dma_mask(&self) -> DmaMask { Self::Hopper | Self::Blackwell =3D> DmaMask::new::<52>(), } } + + /// Returns whether the GPU uses GFW_BOOT for firmware loading. + /// + /// Pre-Hopper architectures (Turing, Ampere, Ada) require waiting for= GFW_BOOT completion + /// before any significant GPU setup. Hopper and later use the FSP Cha= in of Trust boot path + /// instead. + pub(crate) const fn needs_gfw_boot(&self) -> bool { + matches!(self, Self::Turing | Self::Ampere | Self::Ada) + } } =20 impl TryFrom for Architecture { @@ -322,11 +331,11 @@ pub(crate) fn new<'a>( let chipset =3D spec.chipset(); =20 Ok(try_pin_init!(Self { - // We must wait for GFW_BOOT completion before doing any s= ignificant setup - // on the GPU. _: { - gfw::wait_gfw_boot_completion(bar) - .inspect_err(|_| dev_err!(pdev, "GFW boot did not = complete\n"))?; + if chipset.arch().needs_gfw_boot() { + gfw::wait_gfw_boot_completion(bar) + .inspect_err(|_| dev_err!(pdev, "GFW boot did = not complete\n"))?; + } }, =20 sysmem_flush: SysmemFlush::register(pdev.as_ref(), bar, ch= ipset)?, --=20 2.53.0