linux-kernel - Re: [PATCH] arm64: enable generic idle loop

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Message-ID: <20150915143135.GG14287@e104818-lin.cambridge.arm.com>
Date:	Tue, 15 Sep 2015 15:31:35 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Leo Yan <leo.yan@...aro.org>
Cc:	Will Deacon <will.deacon@....com>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] arm64: enable generic idle loop

On Tue, Sep 15, 2015 at 07:20:08PM +0800, Leo Yan wrote:
> On Fri, Aug 21, 2015 at 04:54:25PM +0100, Catalin Marinas wrote:
> > On Fri, Aug 21, 2015 at 05:14:46PM +0800, Leo Yan wrote:
> > > On Fri, Aug 21, 2015 at 10:00:43AM +0100, Catalin Marinas wrote:
> > > > On Fri, Aug 21, 2015 at 11:40:22AM +0800, Leo Yan wrote:
> > > > > Enable generic idle loop for ARM64, so can support for hlt/nohlt
> > > > > command line options to override default idle loop behavior.
> > > > 
> > > > Just curious, what do you need this for?
> > > 
> > > With this config, usually we can add "nohlt" in command line to force
> > > the cpu will never be powered off; so can quickly narrow down if some
> > > issues are related with cpuidle or not.
> > > 
> > > And if CPU is powered off, then its debug logic also will be powered off.
> > > So we can simply use this method to let debugger always hot connect with
> > > the target CPU.
> > 
> > OK.
> > 
> > Acked-by: Catalin Marinas <catalin.marinas@....com>
> 
> Suppose you have missed this patch at previous merge window,
> so just for reminding.

It looks like it missed the merging window. Will, can this still be
picked for 4.3? If not, it will be 4.4.

-- 
Catalin
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