linux-kernel - [v9 PATCH 0/9]: cpuidle: Cleanup cpuidle/ Introduce cpuidle to POWER.

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Message-ID: <20091016093850.GB27350@linux.vnet.ibm.com>
Date:	Fri, 16 Oct 2009 15:08:50 +0530
From:	Arun R Bharadwaj <arun@...ux.vnet.ibm.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Ingo Molnar <mingo@...e.hu>,
	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
	Dipankar Sarma <dipankar@...ibm.com>,
	Balbir Singh <balbir@...ibm.com>,
	Andi Kleen <andi@...stfloor.org>,
	Arun Bharadwaj <arun@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	linux-arch@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: [v9 PATCH 0/9]: cpuidle: Cleanup cpuidle/ Introduce cpuidle to
	POWER.

Hi,

This patchset introduces cpuidle infrastructure to POWER, prototyping
for pSeries, and also does a major refactoring of current x86 idle
power management and a cleanup of cpuidle infrastructure.

This patch series has been in discussion for quite a while now and
below are the links to the previous discussions.

Hopefully, this is ready to be included in the -tip tree.

v8 --> http://lkml.org/lkml/2009/10/8/82
v7 --> http://lkml.org/lkml/2009/10/6/278
v6 --> http://lkml.org/lkml/2009/9/22/180
v5 --> http://lkml.org/lkml/2009/9/22/26
v4 --> http://lkml.org/lkml/2009/9/1/133
v3 --> http://lkml.org/lkml/2009/8/27/124
v2 --> http://lkml.org/lkml/2009/8/26/233
v1 --> http://lkml.org/lkml/2009/8/19/150


Changes in this version:
----------------------------------------
        *Added documentation for the new design regarding registration
        of idle routines in Documentation/cpuidle/core.txt

        *Platforms which do not want the code bloat of cpuidle can
        disable CONFIG_CPU_IDLE. Alternate definition of
        cpuidle_idle_call is provided which would call the appropriate
        idle routine provided by the arch without the overhead of
        registration and governors.
        (Thanks to Andi for raising this isuue)

        *I had missed a cpuidle_kick_cpus() in
        cpuidle_pause_and_lock() which is called from the hotplug
        path. So added that and tested this patchset by subjecting it
        to cpuhotplug torture.
        (Thanks to Balbir for noticing this)


--arun

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