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From: Timur Tabi <ttabi@nvidia.com>
To: Alexandre Courbot <acourbot@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>,
	"gary@garyguo.net" <gary@garyguo.net>,
	Eliot Courtney <ecourtney@nvidia.com>,
	"nova-gpu@lists.linux.dev" <nova-gpu@lists.linux.dev>,
	Zhi Wang <zhiw@nvidia.com>,
	"mcgrof@kernel.org" <mcgrof@kernel.org>,
	"dakr@kernel.org" <dakr@kernel.org>,
	"rust-for-linux@vger.kernel.org" <rust-for-linux@vger.kernel.org>,
	"driver-core@lists.linux.dev" <driver-core@lists.linux.dev>,
	"ojeda@kernel.org" <ojeda@kernel.org>,
	"russ.weight@linux.dev" <russ.weight@linux.dev>
Subject: Re: [PATCH v3 5/7] gpu: nova-core: transition gen_bootloader to TLV images
Date: Thu, 9 Jul 2026 21:27:48 +0000	[thread overview]
Message-ID: <09b1d5117a38726d216074d7e3d56d4aeaae2bb1.camel@nvidia.com> (raw)
In-Reply-To: <DJTOMSK9WVHH.GA7X7JR0PYIO@nvidia.com>

On Thu, 2026-07-09 at 11:24 +0900, Alexandre Courbot wrote:
> > > 
> > > Also, since `dev_dbg` can be compiled out, the check performed on the
> > > `VERS` tag existing is not guaranteed to be performed. We should
> > > probably extract it out of the `dev_dbg` statement. This is true across
> > > the series; which makes me think it might also benefit from a helper to
> > > factor out the request_t.v/Tlv::new/dev_dbg common sequence.
> > 
> > We don't care about the VERS tag if we're not going to print it out, so we probably should
> > not
> > extract it otherwise.
> 
> The spec mentions that this tag is present in all TLV files, so its
> absence means the file is invalid and should trigger an error.

If a tree falls in the woods and no one is around to hear it, does it make a sound?

I see your point, I'm just not sure I agree with it.  By that logic, we should test for VERS in
the constructor.  My concern is that maybe one day we will have a TLV that doesn't have a VERS
tag because it's not attached to a versioned firmware image, it's just some misc data.  

I need to think about this a little more.  What do you think about testing for VERS in the
constructor?  We could move the dev_dbg! into the constructor, but then we'd have to pass `dev`
as a parameter.

I'm going to post a v4 today in the meantime.

  reply	other threads:[~2026-07-09 21:27 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-02 19:27 [PATCH v3 0/7] Transition Nova Core to TLV firmare images Timur Tabi
2026-07-02 19:27 ` [PATCH v3 1/7] rust: firmware: add request_into_buf() Timur Tabi
2026-07-03  2:51   ` Alvin Sun
2026-07-03  3:06     ` Timur Tabi
2026-07-03 13:51       ` Danilo Krummrich
2026-07-06  6:30   ` Alexandre Courbot
2026-07-06 10:50     ` Danilo Krummrich
2026-07-07  2:54       ` Timur Tabi
2026-07-07  5:10         ` Alexandre Courbot
2026-07-07 13:32           ` Danilo Krummrich
2026-07-02 19:27 ` [PATCH v3 2/7] gpu: nova-core: add TLV parser for firmware files Timur Tabi
2026-07-02 19:45   ` Timur Tabi
2026-07-06  6:31     ` Alexandre Courbot
2026-07-07  2:56       ` Timur Tabi
2026-07-07  5:13         ` Alexandre Courbot
2026-07-08 22:48           ` Timur Tabi
2026-07-09  3:43             ` Alexandre Courbot
2026-07-09 21:29               ` Timur Tabi
2026-07-06  6:31   ` Alexandre Courbot
2026-07-08 20:12     ` Timur Tabi
2026-07-09  1:55       ` Alexandre Courbot
2026-07-02 19:27 ` [PATCH v3 3/7] gpu: nova-core: transition booter_load to TLV images Timur Tabi
2026-07-06  6:31   ` Alexandre Courbot
2026-07-08 20:46     ` Timur Tabi
2026-07-09  3:51       ` Alexandre Courbot
2026-07-09 21:31         ` Timur Tabi
2026-07-02 19:27 ` [PATCH v3 4/7] gpu: nova-core: transition gsp " Timur Tabi
2026-07-02 19:27 ` [PATCH v3 5/7] gpu: nova-core: transition gen_bootloader " Timur Tabi
2026-07-06  6:31   ` Alexandre Courbot
2026-07-08 22:26     ` Timur Tabi
2026-07-09  2:24       ` Alexandre Courbot
2026-07-09 21:27         ` Timur Tabi [this message]
2026-07-09 21:49           ` John Hubbard
2026-07-09 22:13             ` Timur Tabi
2026-07-09 22:29               ` John Hubbard
2026-07-09 22:39                 ` Timur Tabi
2026-07-09 22:41                   ` John Hubbard
2026-07-09 22:44                     ` Timur Tabi
2026-07-02 19:27 ` [PATCH v3 6/7] gpu: nova-core: transition fsp " Timur Tabi
2026-07-02 19:27 ` [PATCH v3 7/7] gpu: nova-core: update firmware module info for " Timur Tabi

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