[PATCH] ARM: formalize an IPI for CPU wake-ups

Stephen Boyd sboyd at codeaurora.org
Wed Jun 20 12:32:21 EDT 2012


On 06/11/12 12:25, Russell King - ARM Linux wrote:
> On Mon, Jun 11, 2012 at 10:41:15AM -0700, Stephen Boyd wrote:
>> On 06/11/12 10:18, Nicolas Pitre wrote:
>>> It certainly works for all the targets I'm looking at right now.  In 
>>> those cases the boot protocol couldn't care less about the IPI number as 
>>> the point is only to kick the target CPU out of WFI.
>>>
>>> And that message certainly has to go as it may be triggered multiple 
>>> times per second in some use cases here.
>>>
>>>
>> Last time this came up I thought we covered most of the platforms?
>>
>> OMAP, Realview, Versatile Express, and MSM are covered by this thread
>>
>> http://lists.infradead.org/pipermail/linux-arm-kernel/2011-January/039275.html
> Ok, in that case I've just committed three patches to make those platforms
> use SGI0 instead of SGI1.

Great. Kukjin Kim, can exynos use SGI0? It looks like exynos is the only
one left to move to SGI0.

-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.




More information about the linux-arm-kernel mailing list