Re: [PATCH v9 0/7] ACPI / processor_idle: Add ACPI v6.0 LPI support

From	Sudeep Holla <sudeep.holla@arm.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v9 0/7] ACPI / processor_idle: Add ACPI v6.0 LPI support
Date	2016-07-12 13:50 +0200
Message-ID	<rU4ml-4l8-5@gated-at.bofh.it> (permalink)
References	<rSHrP-7Gk-5@gated-at.bofh.it>
Organization	ARM

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On 08/07/16 18:07, 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.
>

I was hoping to get this in v4.8 now that merge window is
delayed/extended if you have no further comments on this series.

-- 
Regards,
Sudeep

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Re: [PATCH v9 0/7] ACPI / processor_idle: Add ACPI v6.0 LPI support Sudeep Holla <sudeep.holla@arm.com> - 2016-07-12 13:50 +0200
  Re: [PATCH v9 0/7] ACPI / processor_idle: Add ACPI v6.0 LPI support "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-07-12 14:10 +0200
    Re: [PATCH v9 0/7] ACPI / processor_idle: Add ACPI v6.0 LPI support Sudeep Holla <sudeep.holla@arm.com> - 2016-07-12 15:00 +0200
      Re: [PATCH v9 0/7] ACPI / processor_idle: Add ACPI v6.0 LPI support "Rafael J. Wysocki" <rafael@kernel.org> - 2016-07-14 03:20 +0200

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