linux-kernel - Re: [PATCHv2] arm: Preserve TPIDRURW on context switch

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Date:	Sat, 04 May 2013 17:54:37 +0200
From:	André Hentschel <nerv@...ncrow.de>
To:	Jonathan Austin <jonathan.austin@....com>
CC:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Will Deacon <Will.Deacon@....com>,
	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCHv2] arm: Preserve TPIDRURW on context switch

Am 03.05.2013 17:24, schrieb Jonathan Austin:
> Hi Russell,
> 
> Thanks for the comments - you're right about the 'switch_tls'
> being more appropriate - needed to take a step back to see that.
> 
> I've got a few questions, added inline.
> 
> André, Assuming I've understood things okay, there's a patch that
> uses Russell's asm stuff (with minor modifications, see the questions)
> and includes the C-world changes too. Perhaps you could see that it
> solves your problem?

I'll test it tomorrow with my test tool and Wine.
FWIW i hacked together a test tool and it's available at https://github.com/AndreRH/tpidrurw-test
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