linux-kernel - Re: [PATCH v3 0/2] Add Zawrs support and use it for spinlocks

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Date:   Fri, 20 Oct 2023 12:19:38 +0200
From:   Andrea Parri <parri.andrea@...il.com>
To:     Christoph Müllner <christoph.muellner@...ll.eu>
Cc:     Heiko Stuebner <heiko@...ech.de>, linux-riscv@...ts.infradead.org,
        palmer@...belt.com, paul.walmsley@...ive.com,
        linux-kernel@...r.kernel.org, David.Laight@...lab.com,
        Andrew Jones <ajones@...tanamicro.com>,
        Conor Dooley <conor@...nel.org>
Subject: Re: [PATCH v3 0/2] Add Zawrs support and use it for spinlocks

(Removing Heiko's @vrull address from Cc:, since it seemed to bounce, keeping
 his @sntech address.)

> I had a quick look at your changes, and they look good to me.

Great.  Thank you for looking them over.

> Did you agree with Palmer about testing requirements?
> I.e., do we need to run this on hardware that implements Zawrs in a
> non-trivial way?

I didn't quite discuss such specific requirements or hardware implementations,
but I agree that's a valid concern.  Not that I currently have access to such
hardware; any further inputs/data will be appreciated.

> I can try to raise the priority on this here, but can't promise anything.
> For me it is also ok if you take over this patchset.

Thanks.  Either way works for me.  No urgency from my side.  I'd say - let us
leave this up to the community/other reviewers.  (IIUC, Palmer was recovering
from a certain flu and might need more time than usual to get back here.)

  Andrea