lkml.org 
[lkml]   [2009]   [Sep]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [v6 PATCH 0/7]: cpuidle/x86/POWER: Cleanup idle power management code in x86, cleanup drivers/cpuidle/cpuidle.c and introduce cpuidle to POWER.
* Arun R Bharadwaj <arun@linux.vnet.ibm.com> [2009-09-22 16:55:27]:

Hi Len, (or other acpi folks),

I had a question regarding ACPI-cpuidle interaction in the current
implementation.

Currently, every cpu (i.e. acpi_processor) registers to cpuidle as
a cpuidle_device. So every cpu has to go through the process of
setting up the idle states and then registering as a cpuidle device.

What exactly is the reason behind this?

Is this really necessary or can we have a system-wide one-time registering
to cpuidle by ACPI?

I'm currently in the process of enabling cpuidle for POWER systems and
find that having a system-wide registering mechanism to be a cleaner
design.

--arun


\
 
 \ /
  Last update: 2009-09-24 07:15    [W:0.080 / U:0.136 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site