linux-kernel - Re: [PATCH v5 5/5] drivers: clocksource: add CPU PM notifier for ARM architected timer

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Message-ID: <loom.20150219T164240-40@post.gmane.org>
Date:	Thu, 19 Feb 2015 16:03:01 +0000 (UTC)
From:	Venkappa Mala <venkappa.m@...sung.com>
To:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 5/5] drivers: clocksource: add CPU PM notifier for ARM architected timer

Sudeep Holla <sudeep.holla <at> arm.com> writes:

> Are you targeting this on ARM64 platform ?
> If so, I don't understand how is the arch timer context is lost as the 
cpuidle
> driver is not merge to 3.10 stable kernel ?

For time being, you can ignore about ARM64.
let's have a discussion on ARMv7 first. 
I have enabled generic arch arm timer in kernel 3.10 frame work to 
validate vDSO (ARM: vDSO -> still, it did not merge in the vanilla kernel) 
on ARMv7. As part of this, i have noticed that the contex lost is 
happening. After pulling the patch, the issue is resolved, timer/counter 
is up and running. In future, someone wants to enable arch timer in 3.10, 
then I anticipate that the patch needs to be merged in vanilla kernel.
correct me if I am wrong.

BR,
Venkappa

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