From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@arm.linux.org.uk (Russell King - ARM Linux) Date: Mon, 11 Mar 2013 16:22:55 +0000 Subject: [PATCH 4/4][V2] ARM: timer-sp: Set dynamic irq affinity In-Reply-To: <513A03B7.7000004@linaro.org> References: <1362219013-18173-1-git-send-email-daniel.lezcano@linaro.org> <1362219013-18173-5-git-send-email-daniel.lezcano@linaro.org> <513A03B7.7000004@linaro.org> Message-ID: <20130311162255.GI4977@n2100.arm.linux.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Fri, Mar 08, 2013 at 04:28:55PM +0100, Daniel Lezcano wrote: > On 03/02/2013 11:10 AM, Daniel Lezcano wrote: > > From: Viresh Kumar > > > > When a cpu goes to a deep idle state where its local timer is shutdown, it > > notifies the time frame work to use the broadcast timer instead. > > > > Unfortunately, the broadcast device could wake up any CPU, including an idle one > > which is not concerned by the wake up at all. > > > > This implies, in the worst case, an idle CPU will wake up to send an IPI to > > another idle cpu. > > > > This patch fixes this for ARM platforms using timer-sp, by setting > > CLOCK_EVT_FEAT_DYNIRQ feature. > > > > Signed-off-by: Viresh Kumar > > Signed-off-by: Daniel Lezcano > > --- > > Hi Russell, > > I asked Thomas if he could take this patch in its tree but it falls > under your umbrella. Thomas agreed to take it if you ack this patch. > > Is this patch acceptable for you ? It's simple enough. Acked-by: Russell King