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    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    ppc_md.power_save has been replaced by cpuidle_idle_call only for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.


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