linux-kernel - Re: [PATCH] clocksource: em_sti: Set cpu_possible

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Message-ID: <20130905073307.GE8334@verge.net.au>
Date:	Thu, 5 Sep 2013 16:33:07 +0900
From:	Simon Horman <horms@...ge.net.au>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Magnus Damm <magnus.damm@...il.com>,
	linux-kernel@...r.kernel.org, linux@....linux.org.uk,
	arnd@...db.de, linux-sh@...r.kernel.org, rob.herring@...xeda.com,
	olof@...om.net, santosh.shilimkar@...com, grant.likely@...aro.org,
	tglx@...utronix.de
Subject: Re: [PATCH] clocksource: em_sti: Set cpu_possible_mask to fix SMP
 broadcast

On Wed, Sep 04, 2013 at 09:29:53AM -0700, Stephen Boyd wrote:
> On 09/04/13 01:44, Daniel Lezcano wrote:
> >
> >> On Wed, Sep 04, 2013 at 05:01:51PM +0900, Magnus Damm wrote:
> >>> From: Magnus Damm <damm@...nsource.se>
> >>>
> >>> Update the STI driver by setting cpu_possible_mask to make EMEV2
> >>> SMP work as expected together with the ARM broadcast timer.
> >>>
> >>> This breakage was introduced by:
> >>>
> >>> f7db706 ARM: 7674/1: smp: Avoid dummy clockevent being preferred over real hardware clock-event
> >>>
> >>> Without this fix SMP operation is broken on EMEV2 since no
> >>> broadcast timer interrupts trigger on the secondary CPU cores.
> >>>
> >>> Signed-off-by: Magnus Damm <damm@...nsource.se>
> >> Tested-by: Simon Horman <horms+renesas@...ge.net.au>
> >>
> >> I will let this sit for a few days to see if there is any further feedback.
> 
> Reviewed-by: Stephen Boyd <sboyd@...eaurora.org>

Thanks, I have queue this up.
I will let it sit in next for a little bit
and then forward it on to Daniel.
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