[PATCH for 3.9-rc] arm: mvebu: Use local interrupt only for the timer 0

Gregory CLEMENT gregory.clement at free-electrons.com
Wed Mar 27 02:48:56 EDT 2013


On 03/26/2013 11:43 PM, Jason Cooper wrote:
> On Tue, Mar 26, 2013 at 05:00:51PM +0100, Thomas Petazzoni wrote:
>> Jason, Andrew,
>>
>> On Wed, 20 Mar 2013 16:09:35 +0100, Gregory CLEMENT wrote:
>>> The commit 3a6f08a37 "arm: mvebu: Add support for local interrupt",
>>> managed the 28th first interrupts as local interrupt to match the
>>> hardware specification. Among these interrupts there are the Gigabits
>>> Ethernet ones used by the mvneta driver. Unfortunately the state of
>>> the percpu_irq API prevents the driver to use it.
>>>
>>> Indeed the interrupts have to be freed when the .stop() function is
>>> called. As the free_percpu_irq() function don't disable the interrupt
>>> line, we have to do it on each CPU before calling this. The function
>>> disable_percpu_irq() only disable the percpu on the current CPU and
>>> there is no function which allows to disable a percpu irq on a given
>>> CPU. Waiting for the extension of the percpu_irq API, this fix allows
>>> to use again the mvneta driver.
>>>
>>> Signed-off-by: Gregory CLEMENT <gregory.clement at free-electrons.com>
>>
>> Would it be possible to get this commit pushed for 3.9-rc? Without it,
>> the Marvell Armada 370/XP network interfaces are completely broken. The
>> patch has been sent almost a week ago, and has received Tested-by from
>> Ryan Press, Masami Hiramatsu and myself.
> 
> It's in the queue, I just got a little behind.
> 
> thx,
> 

Thanks Jason

> Jason.
> 


-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com



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