[PATCH] arm64: enable generic idle loop

[Catalin Marinas]

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 at arm.com>