linux-kernel - Re: [PATCH 7/7] riscv: Add qspinlock support based on Zabha extension

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Date: Fri, 31 May 2024 15:37:37 +0200
From: Alexandre Ghiti <alex@...ti.fr>
To: Andrea Parri <parri.andrea@...il.com>,
 Alexandre Ghiti <alexghiti@...osinc.com>
Cc: Jonathan Corbet <corbet@....net>, Paul Walmsley
 <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>,
 Albert Ou <aou@...s.berkeley.edu>, Peter Zijlstra <peterz@...radead.org>,
 Ingo Molnar <mingo@...hat.com>, Will Deacon <will@...nel.org>,
 Waiman Long <longman@...hat.com>, Boqun Feng <boqun.feng@...il.com>,
 Arnd Bergmann <arnd@...db.de>, Leonardo Bras <leobras@...hat.com>,
 Guo Ren <guoren@...nel.org>, linux-doc@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
 linux-arch@...r.kernel.org
Subject: Re: [PATCH 7/7] riscv: Add qspinlock support based on Zabha extension

Hi Andrea,

On 29/05/2024 02:55, Andrea Parri wrote:
>> +	select ARCH_USE_QUEUED_SPINLOCKS if TOOLCHAIN_HAS_ZABHA
> IIUC, we should make sure qspinlocks run with ARCH_WEAK_RELEASE_ACQUIRE,
> perhaps a similar select for the latter?  (not a kconfig expert)

Where did you see this dependency? And if that is really a dependency of 
qspinlocks, shouldn't this be under CONFIG_QUEUED_SPINLOCKS? (not a 
Kconfig expert too).

>
>    Andrea
>
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> linux-riscv@...ts.infradead.org
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