linux-kernel - Re: [PATCH v3 00/16] Device / Driver PCI / Platform Rust abstractions

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Message-ID: <2024111656-entrust-wincing-0c84@gregkh>
Date: Sat, 16 Nov 2024 15:50:42 +0100
From: Greg KH <gregkh@...uxfoundation.org>
To: Janne Grunau <j@...nau.net>
Cc: Danilo Krummrich <dakr@...nel.org>, rafael@...nel.org,
	bhelgaas@...gle.com, ojeda@...nel.org, alex.gaynor@...il.com,
	boqun.feng@...il.com, gary@...yguo.net, bjorn3_gh@...tonmail.com,
	benno.lossin@...ton.me, tmgross@...ch.edu, a.hindborg@...sung.com,
	aliceryhl@...gle.com, airlied@...il.com, fujita.tomonori@...il.com,
	lina@...hilina.net, pstanner@...hat.com, ajanulgu@...hat.com,
	lyude@...hat.com, robh@...nel.org, daniel.almeida@...labora.com,
	saravanak@...gle.com, rust-for-linux@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	devicetree@...r.kernel.org, asahi@...ts.linux.dev
Subject: Re: [PATCH v3 00/16] Device / Driver PCI / Platform Rust abstractions

On Sat, Nov 16, 2024 at 03:32:40PM +0100, Janne Grunau wrote:
> On Tue, Oct 22, 2024 at 11:31:37PM +0200, Danilo Krummrich wrote:
> > This patch series implements the necessary Rust abstractions to implement
> > device drivers in Rust.
> > 
> > This includes some basic generalizations for driver registration, handling of ID
> > tables, MMIO operations and device resource handling.
> > 
> > Those generalizations are used to implement device driver support for two
> > busses, the PCI and platfrom bus (with OF IDs) in order to provide some evidence
> > that the generalizations work as intended.
> > 
> > The patch series also includes two patches adding two driver samples, one PCI
> > driver and one platform driver.
> > 
> > The PCI bits are motivated by the Nova driver project [1], but are used by at
> > least one more OOT driver (rnvme [2]).
> > 
> > The platform bits, besides adding some more evidence to the base abstractions,
> > are required by a few more OOT drivers aiming at going upstream, i.e. rvkms [3],
> > cpufreq-dt [4], asahi [5] and the i2c work from Fabien [6].
> 
> A rebase of the asahi driver onto this series still probes the platform
> device and the driver works as expected.
> 
> Feel free to add
> Tested-by: Janne Grunau <j@...nau>
> 
> We plan to import this series for the Asahi Linux downstream kernel
> starting with v6.12 and replace the old rust-for-linux Device/Driver
> abstractions with this.

Great!  I'll wait for the next respin of this as it seems there's been a
lot of review already, and I've taken some of the patches already, so
odds are after 6.13-rc1 is out the series can get a lot smaller.

thanks,

greg k-h