| Message ID | 20230206172157.49887-5-wyes.karny@amd.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | amd_pstate: Add guided autonomous mode support | expand |
On Tue, Feb 07, 2023 at 01:21:55AM +0800, Karny, Wyes 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> Wyes, could you squeeze this minor patch to patch 3? I think we won't need an additional patch to fix alphabetical order in the documentation. Thanks, Ray > --- > .../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 56d5c189e458..d7685b4268ba 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 > + tries 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 > - tries 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. > -- > 2.34.1 >
On Thu, Feb 16, 2023 at 02:12:53PM +0800, Huang Rui wrote: > On Tue, Feb 07, 2023 at 01:21:55AM +0800, Karny, Wyes 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> > > Wyes, could you squeeze this minor patch to patch 3? I think we won't need > an additional patch to fix alphabetical order in the documentation. Alternative, you can move this patch prior patch3, then patch3 (guided autonomous" can add the documentation in correct order. Thanks, Ray > > Thanks, > Ray > > > --- > > .../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 56d5c189e458..d7685b4268ba 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 > > + tries 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 > > - tries 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. > > -- > > 2.34.1 > >
On 16 Feb 14:33, Huang Rui wrote: > On Thu, Feb 16, 2023 at 02:12:53PM +0800, Huang Rui wrote: > > On Tue, Feb 07, 2023 at 01:21:55AM +0800, Karny, Wyes 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> > > > > Wyes, could you squeeze this minor patch to patch 3? I think we won't need > > an additional patch to fix alphabetical order in the documentation. > > Alternative, you can move this patch prior patch3, then patch3 (guided > autonomous" can add the documentation in correct order. Sure, will reorder this. Thanks, Wyes > > Thanks, > Ray > > > > > Thanks, > > Ray > > > > > --- > > > .../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 56d5c189e458..d7685b4268ba 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 > > > + tries 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 > > > - tries 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. > > > -- > > > 2.34.1 > > >
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 56d5c189e458..d7685b4268ba 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 + tries 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 - tries 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.