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Date:	Thu, 6 Feb 2014 12:45:17 +0100
From:	Peter Zijlstra <>
To:	David Daney <>
Cc:	Ralf Baechle <>,,,,
	Paul McKenney <>,
	Will Deacon <>,
	Linus Torvalds <>
Subject: Re: mips octeon memory model questions

On Tue, Feb 04, 2014 at 11:51:31AM -0800, David Daney wrote:
> On OCTEON, SC implies a SYNC operation for the target memory location. So
> the "SC b" is ordered before any writes that come after the SC.

Ah, that makes it all come together. I was thrown by octeon initially
having WEAK_REORDERING_BEYOND_LLSC set and thus thinking there were no
implied barriers.

Thanks David.
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