Re: [PATCH v3 3/3] Documentation: intel_pstate: Add base_frequency information

From: Rafael J. Wysocki
Date: Mon Oct 15 2018 - 04:53:40 EST


On Fri, Oct 12, 2018 at 6:44 PM Srinivas Pandruvada
<srinivas.pandruvada@xxxxxxxxxxxxxxx> wrote:
>
> Updated documentation to explain base_frequency attribute.
>
> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>
> ---
> Documentation/admin-guide/pm/intel_pstate.rst | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/Documentation/admin-guide/pm/intel_pstate.rst b/Documentation/admin-guide/pm/intel_pstate.rst
> index 8f1d3de449b5..14a5505e073e 100644
> --- a/Documentation/admin-guide/pm/intel_pstate.rst
> +++ b/Documentation/admin-guide/pm/intel_pstate.rst
> @@ -465,6 +465,10 @@ Next, the following policy attributes have special meaning if
> policy for the time interval between the last two invocations of the
> driver's utilization update callback by the CPU scheduler for that CPU.
>
> +``base_frequency``
> + When present, shows the base frequency of the CPU. Any frequency above
> + this will be in the turbo frequency range.
> +

This isn't entirely correct, because base_frequency is not present in
the passive mode (and it is not present for the other drivers for that
matter).

> The meaning of these attributes in the `passive mode <Passive Mode_>`_ is the
> same as for other scaling drivers.

Instead, I would say:

"One more policy attribute is present if the `HWP feature is enabled
in the processor <Active Mode With HWP_>`_:"

here and I would add the description of the attribute below.

Thanks,
Rafael