* [PATCH] Documentation/admin-guide/pm/intel_pstate: fix Active Mode w/o HWP paragraph
@ 2018-05-08 15:12 Juri Lelli
2018-05-08 18:36 ` Srinivas Pandruvada
0 siblings, 1 reply; 3+ messages in thread
From: Juri Lelli @ 2018-05-08 15:12 UTC (permalink / raw)
To: linux-kernel
Cc: Juri Lelli, Jonathan Corbet, Rafael J. Wysocki,
Srinivas Pandruvada, linux-doc, linux-pm
P-state selection algorithm (powersave or performance) is selected by
echoing the desired choice to scaling_governor sysfs attribute and not
to scaling_cur_freq (as currently stated).
Fix it.
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: linux-doc@vger.kernel.org
Cc: linux-pm@vger.kernel.org
---
Documentation/admin-guide/pm/intel_pstate.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/admin-guide/pm/intel_pstate.rst b/Documentation/admin-guide/pm/intel_pstate.rst
index d2b6fda3d67b..ab2fe0eda1d7 100644
--- a/Documentation/admin-guide/pm/intel_pstate.rst
+++ b/Documentation/admin-guide/pm/intel_pstate.rst
@@ -145,7 +145,7 @@ feature enabled.]
In this mode ``intel_pstate`` registers utilization update callbacks with the
CPU scheduler in order to run a P-state selection algorithm, either
-``powersave`` or ``performance``, depending on the ``scaling_cur_freq`` policy
+``powersave`` or ``performance``, depending on the ``scaling_governor`` policy
setting in ``sysfs``. The current CPU frequency information to be made
available from the ``scaling_cur_freq`` policy attribute in ``sysfs`` is
periodically updated by those utilization update callbacks too.
--
2.14.3
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] Documentation/admin-guide/pm/intel_pstate: fix Active Mode w/o HWP paragraph
2018-05-08 15:12 [PATCH] Documentation/admin-guide/pm/intel_pstate: fix Active Mode w/o HWP paragraph Juri Lelli
@ 2018-05-08 18:36 ` Srinivas Pandruvada
2018-05-13 8:41 ` Rafael J. Wysocki
0 siblings, 1 reply; 3+ messages in thread
From: Srinivas Pandruvada @ 2018-05-08 18:36 UTC (permalink / raw)
To: Juri Lelli, linux-kernel
Cc: Jonathan Corbet, Rafael J. Wysocki, linux-doc, linux-pm
On Tue, 2018-05-08 at 17:12 +0200, Juri Lelli wrote:
> P-state selection algorithm (powersave or performance) is selected by
> echoing the desired choice to scaling_governor sysfs attribute and
> not
> to scaling_cur_freq (as currently stated).
>
> Fix it.
Thanks for the fix.
>
> Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
> Cc: Jonathan Corbet <corbet@lwn.net>
> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
> Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
> Cc: linux-doc@vger.kernel.org
> Cc: linux-pm@vger.kernel.org
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
>
> ---
> Documentation/admin-guide/pm/intel_pstate.rst | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Documentation/admin-guide/pm/intel_pstate.rst
> b/Documentation/admin-guide/pm/intel_pstate.rst
> index d2b6fda3d67b..ab2fe0eda1d7 100644
> --- a/Documentation/admin-guide/pm/intel_pstate.rst
> +++ b/Documentation/admin-guide/pm/intel_pstate.rst
> @@ -145,7 +145,7 @@ feature enabled.]
>
> In this mode ``intel_pstate`` registers utilization update callbacks
> with the
> CPU scheduler in order to run a P-state selection algorithm, either
> -``powersave`` or ``performance``, depending on the
> ``scaling_cur_freq`` policy
> +``powersave`` or ``performance``, depending on the
> ``scaling_governor`` policy
> setting in ``sysfs``. The current CPU frequency information to be
> made
> available from the ``scaling_cur_freq`` policy attribute in
> ``sysfs`` is
> periodically updated by those utilization update callbacks too.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] Documentation/admin-guide/pm/intel_pstate: fix Active Mode w/o HWP paragraph
2018-05-08 18:36 ` Srinivas Pandruvada
@ 2018-05-13 8:41 ` Rafael J. Wysocki
0 siblings, 0 replies; 3+ messages in thread
From: Rafael J. Wysocki @ 2018-05-13 8:41 UTC (permalink / raw)
To: Srinivas Pandruvada, Juri Lelli
Cc: linux-kernel, Jonathan Corbet, Rafael J. Wysocki, linux-doc, linux-pm
On Tuesday, May 8, 2018 8:36:44 PM CEST Srinivas Pandruvada wrote:
> On Tue, 2018-05-08 at 17:12 +0200, Juri Lelli wrote:
> > P-state selection algorithm (powersave or performance) is selected by
> > echoing the desired choice to scaling_governor sysfs attribute and
> > not
> > to scaling_cur_freq (as currently stated).
> >
> > Fix it.
> Thanks for the fix.
>
> >
> > Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
> > Cc: Jonathan Corbet <corbet@lwn.net>
> > Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
> > Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
> > Cc: linux-doc@vger.kernel.org
> > Cc: linux-pm@vger.kernel.org
> Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
>
>
> >
> > ---
> > Documentation/admin-guide/pm/intel_pstate.rst | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/Documentation/admin-guide/pm/intel_pstate.rst
> > b/Documentation/admin-guide/pm/intel_pstate.rst
> > index d2b6fda3d67b..ab2fe0eda1d7 100644
> > --- a/Documentation/admin-guide/pm/intel_pstate.rst
> > +++ b/Documentation/admin-guide/pm/intel_pstate.rst
> > @@ -145,7 +145,7 @@ feature enabled.]
> >
> > In this mode ``intel_pstate`` registers utilization update callbacks
> > with the
> > CPU scheduler in order to run a P-state selection algorithm, either
> > -``powersave`` or ``performance``, depending on the
> > ``scaling_cur_freq`` policy
> > +``powersave`` or ``performance``, depending on the
> > ``scaling_governor`` policy
> > setting in ``sysfs``. The current CPU frequency information to be
> > made
> > available from the ``scaling_cur_freq`` policy attribute in
> > ``sysfs`` is
> > periodically updated by those utilization update callbacks too.
>
Applied and pushed for 4.17-rc5, thanks!
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-05-08 15:12 [PATCH] Documentation/admin-guide/pm/intel_pstate: fix Active Mode w/o HWP paragraph Juri Lelli
2018-05-08 18:36 ` Srinivas Pandruvada
2018-05-13 8:41 ` Rafael J. Wysocki
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