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SubjectRe: [PATCH v2] Documentation: add ABI entry for intel_pstate
Date
On Monday, January 06, 2014 06:24:26 PM Ramkumar Ramachandra wrote:
> Add a Documentation/ABI entry for
> /sys/devices/system/cpu/intel_pstate/max_perf_pct,
> /sys/devices/system/cpu/intel_pstate/min_perf_pct, and
> /sys/devices/system/cpu/intel_pstate/no_turbo.
>
> Cc: Dirk Brandewie <dirk.brandewie@gmail.com>
> Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
> Cc: Randy Dunlap <rdunlap@infradead.org>
> Cc: Linux PM <linux-pm@vger.kernel.org>
> Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>

OK, queued up for 3.14.

Thanks!

> ---
> Documentation/ABI/testing/sysfs-devices-system-cpu | 24 ++++++++++++++++++++++
> 1 file changed, 24 insertions(+)
>
> diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
> index 468e4d4..d5a0d33 100644
> --- a/Documentation/ABI/testing/sysfs-devices-system-cpu
> +++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
> @@ -200,3 +200,27 @@ Description: address and size of the percpu note.
> note of cpu#.
>
> crash_notes_size: size of the note of cpu#.
> +
> +
> +What: /sys/devices/system/cpu/intel_pstate/max_perf_pct
> + /sys/devices/system/cpu/intel_pstate/min_perf_pct
> + /sys/devices/system/cpu/intel_pstate/no_turbo
> +Date: February 2013
> +Contact: linux-pm@vger.kernel.org
> +Description: Parameters for the Intel P-state driver
> +
> + Logic for selecting the current P-state in Intel
> + Sandybridge+ processors. The three knobs control
> + limits for the P-state that will be requested by the
> + driver.
> +
> + max_perf_pct: limits the maximum P state that will be requested by
> + the driver stated as a percentage of the available performance.
> +
> + min_perf_pct: limits the minimum P state that will be requested by
> + the driver stated as a percentage of the available performance.
> +
> + no_turbo: limits the driver to selecting P states below the turbo
> + frequency range.
> +
> + More details can be found in Documentation/cpu-freq/intel-pstate.txt
>

--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.


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