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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Alan Stern <stern@rowland.harvard.edu>,
	schwidefsky@de.ibm.com, borntraeger@de.ibm.com,
	linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
	parri.andrea@gmail.com, will.deacon@arm.com,
	boqun.feng@gmail.com, npiggin@gmail.com, dhowells@redhat.com,
	j.alglave@ucl.ac.uk, luc.maranget@inria.fr, akiyks@gmail.com
Subject: Re: [PATCH RFC tools/memory-model] Add s390.{cfg,cat}
Date: Wed, 28 Mar 2018 18:33:16 -0700	[thread overview]
Message-ID: <20180329013316.GU3675@linux.vnet.ibm.com> (raw)
In-Reply-To: <20180328175136.GL4082@hirez.programming.kicks-ass.net>

On Wed, Mar 28, 2018 at 07:51:36PM +0200, Peter Zijlstra wrote:
> On Wed, Mar 28, 2018 at 11:01:25AM -0400, Alan Stern wrote:
> > I don't quite see the point of this.  You're not suggesting that we
> > have one Linux Kernel Memory Consistency Model for s390 and another
> > one for all the other architectures, are you?
> > 
> > If the idea is merely to provide a herd model for s390 then it should 
> > go into the DIY repository, not into the LKMM repository.
> 
> I suspect the use-case was validating s390 arch code which might not
> have followed all the regular linux rules because they know its TSO. But
> yes, I'm tempted to agree that even arch specific code ought to follow
> the regular rules, just to avoid completely messing up the reader.

Another use case is testing an s390 .cat file without having to teach
herd about s390 assembly.  ;-)

							Thanx, Paul

      reply	other threads:[~2018-03-29  4:54 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-28 13:42 [PATCH RFC tools/memory-model] Add s390.{cfg,cat} Paul E. McKenney
2018-03-28 13:48 ` Peter Zijlstra
2018-03-28 14:20   ` Paul E. McKenney
2018-03-28 16:49     ` Paul E. McKenney
2018-03-28 15:01 ` Alan Stern
2018-03-28 16:33   ` Paul E. McKenney
2018-03-28 18:04     ` Alan Stern
2018-03-29  2:18       ` Paul E. McKenney
2018-03-29 14:40         ` Alan Stern
2018-04-02 19:31           ` Paul E. McKenney
2018-04-03 13:50             ` Alan Stern
2018-04-03 15:16               ` Paul E. McKenney
2018-03-28 17:51   ` Peter Zijlstra
2018-03-29  1:33     ` Paul E. McKenney [this message]

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