linux-kernel - Re: [RFC V1] cpuidle: add idle routine registration and cleanup pm

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Date:	Wed, 20 Oct 2010 12:29:32 -0700
From:	Arjan van de Ven <arjan@...ux.intel.com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	svaidy@...ux.vnet.ibm.com, Andi Kleen <ak@...ux.intel.com>,
	Trinabh Gupta <trinabh@...ux.vnet.ibm.com>,
	Venkatesh Pallipadi <venki@...gle.com>, lenb@...nel.org,
	suresh.b.siddha@...el.com, benh@...nel.crashing.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC V1] cpuidle: add idle routine registration and cleanup pm_idle
 pointer

  On 10/20/2010 12:28 PM, Peter Zijlstra wrote:
> On Wed, 2010-10-20 at 12:25 -0700, Arjan van de Ven wrote:
>> (the pm_idle is an x86 only problem. other architectures should be able
>> to keep doing what they are doing)
> sadly no, some architectures copied this brilliant piece of design.
>
> A quick git grep suggests:
> arm/blackfin/cris/ia64/m32r/m68knommu/microblaze/mn10300/sh/sparc all
> have pm_idle.

any of those that only every use one are the easy case.

the ones that use multiple can convert to the same solution x86 has over 
time.


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