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From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Nicolas Pitre <nicolas.pitre@linaro.org>
Subject: [question] on which cpu an interrupt controller will raise an irq ?
Date: Sun, 07 Dec 2014 21:42:48 +0100	[thread overview]
Message-ID: <5484BBC8.7080304@linaro.org> (raw)


Hi all,

I am not very familiar with the interrupt subsystem, so sorry if this 
sounds a stupid question.

IIUC, when a interrupt happens on a SMP system and if there is no 
affinity set for it, it is delivered following a scheme decided by the 
interrupt controller.

For example, for the APIC, there is a round robin behaviour, so an 
interrupt will be raised on cpu0, then cpu1, and so on ...

Is there a way to know on which cpu a controller will raise the interrupt ?

Thanks in advance

   -- Daniel



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             reply	other threads:[~2014-12-07 20:42 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-07 20:42 Daniel Lezcano [this message]
2014-12-10 16:22 ` [question] on which cpu an interrupt controller will raise an irq ? Thomas Gleixner

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