linux-kernel - Re: [PATCH] tools/memory-model: Document herd7 (internal) representation

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Date: Mon, 27 May 2024 14:25:01 +0200
From: Hernan Ponce de Leon <hernan.poncedeleon@...weicloud.com>
To: Andrea Parri <parri.andrea@...il.com>,
 Alan Stern <stern@...land.harvard.edu>
Cc: will@...nel.org, peterz@...radead.org, boqun.feng@...il.com,
 npiggin@...il.com, dhowells@...hat.com, j.alglave@....ac.uk,
 luc.maranget@...ia.fr, paulmck@...nel.org, akiyks@...il.com,
 dlustig@...dia.com, joel@...lfernandes.org, linux-kernel@...r.kernel.org,
 linux-arch@...r.kernel.org, jonas.oberhauser@...weicloud.com
Subject: Re: [PATCH] tools/memory-model: Document herd7 (internal)
 representation

On 5/24/2024 6:00 PM, Andrea Parri wrote:
>> What's the difference between R and R*, or between W and W*?
> 
> AFAIU, herd7 uses such notation, "*", to denote a load or a store which
> is also in RMW.

I also got confused with this. What about the following notation?

	R[once,RMW] ->rmw W[once,RMW]

> 
>    Andrea