| Message ID | 20230113052141.2874296-5-wyes.karny@amd.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | amd_pstate: Add guided autonomous mode support | expand |
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.
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.
Move amd_pstate command line param description to correct alphabetical order. Signed-off-by: Wyes Karny <wyes.karny@amd.com> --- .../admin-guide/kernel-parameters.txt | 46 +++++++++---------- 1 file changed, 23 insertions(+), 23 deletions(-)