From: Peter Zijlstra <peterz@infradead.org>
To: Max Filippov <jcmvbkbc@gmail.com>
Cc: Linux-Arch <linux-arch@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@kernel.org>,
will.deacon@arm.com, Paul McKenney <paulmck@linux.vnet.ibm.com>
Subject: Re: [PATCH 29/31] arch,xtensa: Convert smp_mb__*
Date: Wed, 19 Mar 2014 14:30:30 +0100 [thread overview]
Message-ID: <20140319133030.GA7744@laptop.programming.kicks-ass.net> (raw)
In-Reply-To: <CAMo8BfLLFqYz96LLJy0f+9XgAdQVUVhRg_VGp+yG92Gfk=sfaQ@mail.gmail.com>
On Wed, Mar 19, 2014 at 05:11:34PM +0400, Max Filippov wrote:
> Hi Peter,
>
> On Wed, Mar 19, 2014 at 10:47 AM, Peter Zijlstra <peterz@infradead.org> wrote:
> > Xtensa SMP has ll/sc which is fully serializing, therefore its exising
>
> One minor correction: current xtensa ISA doens't have ll/sc, it only
> has cas (s32c1i instruction), which is fully serializing.
Oh; my bad in reading your asm. The l32i and s32cli read like a load 32
and store 32 conditional to me. But sure, cas works too :-)
I'll ammend the changelog. Thanks!
next prev parent reply other threads:[~2014-03-19 13:30 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-19 6:47 [PATCH 00/31] Clean up smp_mb__ barriers Peter Zijlstra
2014-03-19 6:47 ` [PATCH 01/31] ia64: Fix up smp_mb__{before,after}_clear_bit Peter Zijlstra
2014-03-19 6:47 ` [PATCH 02/31] arc,hexagon: Delete asm/barrier.h Peter Zijlstra
2014-03-19 6:47 ` [PATCH 03/31] arch: Prepare for smp_mb__{before,after}_atomic() Peter Zijlstra
2014-03-19 6:47 ` [PATCH 04/31] arch,alpha: Convert smp_mb__* Peter Zijlstra
2014-03-19 6:47 ` [PATCH 05/31] arch,arc: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 06/31] arch,arm: " Peter Zijlstra
2014-04-14 16:19 ` Will Deacon
2014-03-19 6:47 ` [PATCH 07/31] arch,arm64: " Peter Zijlstra
2014-03-21 11:54 ` Catalin Marinas
2014-03-19 6:47 ` [PATCH 08/31] arch,avr32: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 09/31] arch,blackfin: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 10/31] arch,c6x: " Peter Zijlstra
2014-04-09 15:35 ` Mark Salter
2014-03-19 6:47 ` [PATCH 11/31] arch,cris: " Peter Zijlstra
2014-03-20 11:11 ` Jesper Nilsson
2014-03-19 6:47 ` [PATCH 12/31] arch,frv: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 13/31] arch,hexagon: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 14/31] arch,ia64: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 15/31] arch,m32r: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 16/31] arch,m68k: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 17/31] arch,metag: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 18/31] arch,mips: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 19/31] arch,mn10300: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 20/31] arch,openrisc: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 21/31] arch,parisc: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 22/31] arch,powerpc: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 23/31] arch,s390: " Peter Zijlstra
2014-03-19 13:50 ` Heiko Carstens
2014-03-19 6:47 ` [PATCH 24/31] arch,score: " Peter Zijlstra
2014-03-19 18:53 ` Lennox Wu
2014-03-19 6:47 ` [PATCH 25/31] arch,sh: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 26/31] arch,sparc: " Peter Zijlstra
2014-03-19 17:54 ` David Miller
2014-03-19 6:47 ` [PATCH 27/31] arch,tile: " Peter Zijlstra
2014-03-19 17:49 ` Chris Metcalf
2014-03-19 6:47 ` [PATCH 28/31] arch, x86: " Peter Zijlstra
2014-03-19 6:47 ` [PATCH 29/31] arch,xtensa: " Peter Zijlstra
2014-03-19 13:11 ` Max Filippov
2014-03-19 13:30 ` Peter Zijlstra [this message]
2014-03-19 6:47 ` [PATCH 30/31] arch,doc: " Peter Zijlstra
2014-03-19 17:15 ` Paul E. McKenney
2014-03-19 17:36 ` David Howells
2014-03-19 6:48 ` [PATCH 31/31] arch: Mass conversion of smp_mb__* Peter Zijlstra
2014-03-19 9:55 ` [PATCH 00/31] Clean up smp_mb__ barriers David Howells
2014-03-19 9:58 ` Peter Zijlstra
2014-03-19 10:07 ` David Howells
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