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

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Message-ID: <52276001.8070801@codeaurora.org>
Date:	Wed, 04 Sep 2013 09:29:53 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Daniel Lezcano <daniel.lezcano@...aro.org>
CC:	Simon Horman <horms@...ge.net.au>,
	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 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>

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