Re: [PATCH v3 5/7] gpu: nova-core: transition gen_bootloader to TLV images

"Alexandre Courbot" <[email protected]>
Newsgroups dev.linux.lists.nova-gpu,dev.linux.lists.driver-core,org.kernel.vger.rust-for-linux
Message-ID <[email protected]>
On Fri Jul 3, 2026 at 4:27 AM JST, Timur Tabi wrote:
<...>
>  /// Structure used by the boot-loader to load the rest of the code.
>  ///
>  /// This has to be filled by the GPU driver and copied into DMEM at offset
> @@ -146,38 +121,23 @@ pub(crate) fn new(
>          dev: &Device<device::Bound>,
>          chipset: Chipset,
>      ) -> Result<Self> {
> -        let fw = request_firmware(dev, chipset, "gen_bootloader", FIRMWARE_VERSION)?;
> -        let hdr = fw
> -            .data()
> -            .get(0..size_of::<BinHdr>())
> -            .and_then(BinHdr::from_bytes_copy)
> -            .ok_or(EINVAL)?;
> -
> -        let desc = {
> -            let desc_offset = usize::from_safe_cast(hdr.header_offset);
> -
> -            fw.data()
> -                .get(desc_offset..)
> -                .and_then(BootloaderDesc::from_bytes_copy_prefix)
> -                .ok_or(EINVAL)?
> -                .0
> -        };
> +        let fw = request_tlv(dev, chipset, "gen_bootloader")?;
> +        let tlv = Tlv::new(fw.data())?;
> +        dev_info!(
> +            dev,
> +            "loaded generic bootloader firmware v{}\n",
> +            tlv.get_string(b"VERS")?
> +        );

s/dev_info/dev_dbg.

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.
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