Re: [PATCH 0/6] cpuidle : per cpu latencies

[Amit Kucheria <amit.kucheria@linaro.org>]

On Fri, Sep 7, 2012 at 3:49 PM, Daniel Lezcano
<daniel.lezcano@linaro.org> wrote:
> Since commit 46bcfad7a819bd17ac4e831b04405152d59784ab,
>         cpuidle: Single/Global registration of idle states
>
> we have a single registration for the cpuidle states which makes
> sense. But now two new architectures are coming: tegra3 and big.LITTLE.
>
> These architectures have different cpus with different caracteristics
> for power saving. High load => powerfull processors, idle => small processors.
>
> That implies different cpu latencies.
>
> This patchset keeps the current behavior as introduced by Deepthi without
> breaking the drivers and add the possibility to specify a per cpu states.
>
>  * Tested on intel core 2 duo T9500
>  * Tested on vexpress by Lorenzo Pieralsi
>  * Tested on tegra3 by Peter De Schrijver
>
> Daniel Lezcano (6):
>   acpi : move the acpi_idle_driver variable declaration
>   acpi : move cpuidle_device field out of the acpi_processor_power
>     structure
>   acpi : remove pointless cpuidle device state_count init
>   cpuidle : add a pointer for cpuidle_state in the cpuidle_device
>   cpuidle : use per cpuidle device cpu states
>   cpuidle : add cpuidle_register_states function
>
>  drivers/acpi/processor_driver.c    |    2 +-
>  drivers/acpi/processor_idle.c      |   27 +++++++++++++++-------
>  drivers/cpuidle/cpuidle.c          |   42 ++++++++++++++++++++++++++++-------
>  drivers/cpuidle/governors/ladder.c |   22 +++++++++---------
>  drivers/cpuidle/governors/menu.c   |    8 +++---
>  drivers/cpuidle/sysfs.c            |    3 +-
>  include/acpi/processor.h           |    3 --
>  include/linux/cpuidle.h            |   11 ++++++--
>  8 files changed, 76 insertions(+), 42 deletions(-)

Feel free to add my Reviewed-by for this series.

/Amit