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From: John Hubbard <jhubbard@nvidia.com>
To: Joel Fernandes <joelagnelf@nvidia.com>, linux-kernel@vger.kernel.org
Cc: Miguel Ojeda <ojeda@kernel.org>, Boqun Feng <boqun@kernel.org>,
	Gary Guo <gary@garyguo.net>,
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	Nikola Djukic <ndjukic@nvidia.com>,
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Subject: Re: [PATCH v11 01/20] gpu: nova-core: gsp: Return GspStaticInfo from boot()
Date: Thu, 16 Apr 2026 15:57:53 -0700	[thread overview]
Message-ID: <a23f6848-b685-47a0-a4a9-d23b132bcddc@nvidia.com> (raw)
In-Reply-To: <20260415210548.3776595-1-joelagnelf@nvidia.com>

On 4/15/26 2:05 PM, Joel Fernandes wrote:
> Refactor the GSP boot function to return GetGspStaticInfoReply.
> 
> This enables access required for memory management initialization to:
> - bar1_pde_base: BAR1 page directory base.
> - bar2_pde_base: BAR2 page directory base.
> - usable memory regions in video memory.
> 
> Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
> Cc: Nikola Djukic <ndjukic@nvidia.com>
> Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
> ---
>  drivers/gpu/nova-core/gpu.rs      | 9 +++++++--
>  drivers/gpu/nova-core/gsp/boot.rs | 9 ++++++---
>  2 files changed, 13 insertions(+), 5 deletions(-)

Hi Joel,

Looks nice, just a tiny nit about a comment below, but either way,

Reviewed-by: John Hubbard <jhubbard@nvidia.com>

> 
> diff --git a/drivers/gpu/nova-core/gpu.rs b/drivers/gpu/nova-core/gpu.rs
> index 0f6fe9a1b955..b4da4a1ae156 100644
> --- a/drivers/gpu/nova-core/gpu.rs
> +++ b/drivers/gpu/nova-core/gpu.rs
> @@ -21,7 +21,10 @@
>      },
>      fb::SysmemFlush,
>      gfw,
> -    gsp::Gsp,
> +    gsp::{
> +        commands::GetGspStaticInfoReply,
> +        Gsp, //
> +    },
>      regs,
>  };
>  
> @@ -238,6 +241,8 @@ pub(crate) struct Gpu {
>      /// GSP runtime data. Temporarily an empty placeholder.
>      #[pin]
>      gsp: Gsp,
> +    /// Static GPU information from GSP.
> +    gsp_static_info: GetGspStaticInfoReply,

Unless we have more to say, I'd suggest deleting the comment,
because it adds zero new information, at least as currently
written.

And I checked around: contrary to what I initially believed,
there doesn't seem to be a requirement to add this kind of
boilerplate--fortunately.


thanks,
-- 
John Hubbard


      parent reply	other threads:[~2026-04-16 22:58 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-15 21:05 [PATCH v11 01/20] gpu: nova-core: gsp: Return GspStaticInfo from boot() Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 02/20] gpu: nova-core: gsp: Extract usable FB region from GSP Joel Fernandes
2026-04-16 23:04   ` John Hubbard
2026-04-16 23:26   ` John Hubbard
2026-04-15 21:05 ` [PATCH v11 03/20] gpu: nova-core: gsp: Expose total physical VRAM end from FB region info Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 04/20] gpu: nova-core: mm: Add support to use PRAMIN windows to write to VRAM Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 05/20] docs: gpu: nova-core: Document the PRAMIN aperture mechanism Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 06/20] gpu: nova-core: mm: Add common memory management types Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 07/20] gpu: nova-core: mm: Add TLB flush support Joel Fernandes
2026-04-16 21:23   ` Joel Fernandes
2026-04-16 21:45     ` Danilo Krummrich
2026-04-16 22:18       ` Joel Fernandes
2026-04-16 22:53         ` Danilo Krummrich
2026-04-15 21:05 ` [PATCH v11 08/20] gpu: nova-core: mm: Add GpuMm centralized memory manager Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 09/20] gpu: nova-core: mm: Add common types for all page table formats Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 10/20] gpu: nova-core: mm: Add MMU v2 page table types Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 11/20] gpu: nova-core: mm: Add MMU v3 " Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 12/20] gpu: nova-core: mm: Add unified page table entry wrapper enums Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 13/20] gpu: nova-core: mm: Add page table walker for MMU v2/v3 Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 14/20] gpu: nova-core: mm: Add Virtual Memory Manager Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 15/20] gpu: nova-core: mm: Add virtual address range tracking to VMM Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 16/20] gpu: nova-core: mm: Add multi-page mapping API " Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 17/20] gpu: nova-core: Add BAR1 aperture type and size constant Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 18/20] gpu: nova-core: mm: Add BAR1 user interface Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 19/20] gpu: nova-core: mm: Add BAR1 memory management self-tests Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 20/20] gpu: nova-core: mm: Add PRAMIN aperture self-tests Joel Fernandes
2026-04-15 21:05 ` [PATCH v11 00/21] gpu: nova-core: Add memory management support Joel Fernandes
2026-04-16 22:57 ` John Hubbard [this message]

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