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Re: [PATCH v6 0/5] ACPI / processor_idle: Add ACPI v6.0 LPI support

From Sudeep Holla <sudeep.holla@arm.com>
Newsgroups linux.kernel
Subject Re: [PATCH v6 0/5] ACPI / processor_idle: Add ACPI v6.0 LPI support
Date 2016-06-22 19:50 +0200
Message-ID <rMUrM-6vZ-19@gated-at.bofh.it> (permalink)
References <rJXPc-66e-13@gated-at.bofh.it>
Organization ARM

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Hi Rafael,

On 14/06/16 15:48, Sudeep Holla wrote:
> ACPI 6.0 introduced LPI(Low Power Idle) states that provides an alternate
> method to describe processor idle states. It extends the specification
> to allow the expression of idle states like C-states selectable by the
> OSPM when a processor goes idle, but may affect more than one processor,
> and may affect other system components.
>
> LPI extensions leverages the processor container device(again introduced
> in ACPI 6.0) allowing to express which parts of the system are affected
> by a given LPI state. It defines the local power states for each node
> in a hierarchical processor topology. The OSPM can use _LPI object to
> select a local power state for each level of processor hierarchy in the
> system. They used to produce a composite power state request that is
> presented to the platform by the OSPM.
>
> Since multiple processors affect the idle state for any non-leaf hierarchy
> node, coordination of idle state requests between the processors is
> required. ACPI supports two different coordination schemes: Platform
> coordinated and  OS initiated.
>
> This series aims at providing basic and initial support for platform
> coordinated LPI states.
>

Gentle ping, was hoping to target this series for v4.8

-- 
Regards,
Sudeep

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[PATCH v6 0/5] ACPI / processor_idle: Add ACPI v6.0 LPI support Sudeep Holla <sudeep.holla@arm.com> - 2016-06-14 16:50 +0200
  [PATCH v6 2/5] ACPI / processor_idle: Add support for Low Power Idle(LPI) states Sudeep Holla <sudeep.holla@arm.com> - 2016-06-14 17:00 +0200
    Re: [PATCH v6 2/5] ACPI / processor_idle: Add support for Low Power  Idle(LPI) states Sudeep Holla <sudeep.holla@arm.com> - 2016-06-14 18:50 +0200
    [PATCH v6 2/5][UPDATED] ACPI / processor_idle: Add support for Low Power Idle(LPI) states Sudeep Holla <sudeep.holla@arm.com> - 2016-06-14 19:00 +0200
  Re: [PATCH v6 0/5] ACPI / processor_idle: Add ACPI v6.0 LPI support Sudeep Holla <sudeep.holla@arm.com> - 2016-06-22 19:50 +0200
    Re: [PATCH v6 0/5] ACPI / processor_idle: Add ACPI v6.0 LPI support "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-06-23 02:40 +0200

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