[lkml]   [2009]   [Sep]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Subject[v6 PATCH 0/7]: cpuidle/x86/POWER: Cleanup idle power management code in x86, cleanup drivers/cpuidle/cpuidle.c and introduce cpuidle to POWER.

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.

My earlier iterations can be found at:

v5 -->
v4 -->
v3 -->
v2 -->
v1 -->

Changes in this version:
Remove the bug from previous iteration in the routine
cpuidle_remove_from_list(), which was causing the kernel to panic on
platform supporting multiple sleep states.

Add the routine cpuidle_kick_cpus() in POWER, which is needed to kick
the cpus out of their idle when changing the idle routines.

Peterz suggested it would be nice to have a sysfs interface through
which an idle routine can be forced at runtime.

Also, current implementation registers every cpu as a cpuidle_device,
but this is an overkill and the registering mechanism should be a
systemwide process and not per-cpu. (probably one of the original
cpuidle authors can reply to this - Venki, Shaohua Li? ).

ppc_md.power_save has been replaced by cpuidle_idle_call only for
pseries. So this needs to be done for all POWER platforms so that
ppc_md.power_save is completely removed.

Any comments on the design is welcome.


 \ /
  Last update: 2009-09-22 13:27    [W:0.089 / U:0.276 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site