Messages in this thread | | | Date | Thu, 12 Jan 2023 23:38:23 -0600 | Subject | Re: [PATCH v2 4/6] Documentation: amd_pstate: Move amd_pstate param to alphabetical order | From | Mario Limonciello <> |
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On 1/12/23 23:21, Wyes Karny wrote: > Move amd_pstate command line param description to correct alphabetical > order. > > Signed-off-by: Wyes Karny <wyes.karny@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
> --- > .../admin-guide/kernel-parameters.txt | 46 +++++++++---------- > 1 file changed, 23 insertions(+), 23 deletions(-) > > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index 0d8486325c9a..5f6a3a34251e 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -339,6 +339,29 @@ > This mode requires kvm-amd.avic=1. > (Default when IOMMU HW support is present.) > > + amd_pstate= [X86] > + disable > + Do not enable amd_pstate as the default > + scaling driver for the supported processors > + passive > + Use amd_pstate with passive mode as a scaling driver. > + In this mode autonomous selection is disabled. > + Driver requests a desired performance level and platform > + tires to match the same performance level (if it is > + satisfied by guaranteed performance level). > + active > + Use amd_pstate_epp driver instance as the scaling driver, > + driver provides a hint to the hardware if software wants > + to bias toward performance (0x0) or energy efficiency (0xff) > + to the CPPC firmware. then CPPC power algorithm will > + calculate the runtime workload and adjust the realtime cores > + frequency. > + guided > + Activate guided autonomous mode. Driver requests minimum and > + maximum performance level and the platform autonomously > + selects a performance level in this range and appropriate > + to the current workload. > + > amijoy.map= [HW,JOY] Amiga joystick support > Map of devices attached to JOY0DAT and JOY1DAT > Format: <a>,<b> > @@ -7009,26 +7032,3 @@ > memory, and other data can't be written using > xmon commands. > off xmon is disabled. > - > - amd_pstate= [X86] > - disable > - Do not enable amd_pstate as the default > - scaling driver for the supported processors > - passive > - Use amd_pstate with passive mode as a scaling driver. > - In this mode autonomous selection is disabled. > - Driver requests a desired performance level and platform > - tires to match the same performance level (if it is > - satisfied by guaranteed performance level). > - active > - Use amd_pstate_epp driver instance as the scaling driver, > - driver provides a hint to the hardware if software wants > - to bias toward performance (0x0) or energy efficiency (0xff) > - to the CPPC firmware. then CPPC power algorithm will > - calculate the runtime workload and adjust the realtime cores > - frequency. > - guided > - Activate guided autonomous mode. Driver requests minimum and > - maximum performance level and the platform autonomously > - selects a performance level in this range and appropriate > - to the current workload.
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