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Date: Fri, 1 Mar 2013 14:28:18 +0100 From: Rickard Andersson <rickard.andersson@...ricsson.com> To: Linus Walleij <linus.walleij@...aro.org> Cc: Vincent Guittot <vincent.guittot@...aro.org>, Daniel Lezcano <daniel.lezcano@...aro.org>, "john.stultz@...aro.org" <john.stultz@...aro.org>, "tglx@...utronix.de" <tglx@...utronix.de>, "jacob.jun.pan@...ux.intel.com" <jacob.jun.pan@...ux.intel.com>, Linus WALLEIJ <linus.walleij@...ricsson.com>, "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>, "viresh.kumar@...aro.org" <viresh.kumar@...aro.org>, "patches@...aro.org" <patches@...aro.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org> Subject: Re: [PATCH 3/4] ARM: nomadik: add dynamic irq flag to the timer On 03/01/2013 09:56 AM, Vincent Guittot wrote: > On 1 March 2013 02:13, Linus Walleij<linus.walleij@...aro.org> wrote: >> On Tue, Feb 26, 2013 at 11:17 PM, Daniel Lezcano >> <daniel.lezcano@...aro.org> wrote: >> >>> Add the dynamic irq affinity feature to the timer clock device. >>> >>> Signed-off-by: Daniel Lezcano<daniel.lezcano@...aro.org> >> Looks reasonable to me, sadly I do not fully grasp the patch set, >> Vincent+Rickard can you have a look at this? > ux500 is able to trig the wake up on one CPU and let the other one in > WFI. This patch will minimize the spurious wake up of CPU0 when CPU1 > is the target CPU of the broadcast timer. One main consequence is that > we will not uselessly execute all the deferrable and newly idle > activities on the CPU0 . > > you can add my reviewed-by if you want > > Vincent > It looks ok to me as well. BR Rickard -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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