| Message ID | 933b90997624cf7dd788ea770e5529b77ba7be0c.1718787627.git.perry.yuan@amd.com (mailing list archive) |
|---|---|
| State | Changes Requested, archived |
| Delegated to: | Mario Limonciello |
| Headers | show |
| Series | AMD Pstate Driver Core Performance Boost | expand |
On 6/19/2024 04:16, Perry Yuan wrote: > From: Perry Yuan <Perry.Yuan@amd.com> > > Introduce AMD CPU frequency boosting control sysfs entry which used for > switching boost on and boost off. > > If core performance boost is disabled while a core is in a boosted P-state, > the core automatically transitions to the highest performance non-boosted P-state > The highest perf and frequency will be limited by the setting value. > > Signed-off-by: Perry Yuan <Perry.Yuan@amd.com> > Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> > --- > Documentation/admin-guide/pm/amd-pstate.rst | 10 ++++++++++ > 1 file changed, 10 insertions(+) > > diff --git a/Documentation/admin-guide/pm/amd-pstate.rst b/Documentation/admin-guide/pm/amd-pstate.rst > index 1e0d101b020a..bcc0d9404c18 100644 > --- a/Documentation/admin-guide/pm/amd-pstate.rst > +++ b/Documentation/admin-guide/pm/amd-pstate.rst > @@ -440,6 +440,16 @@ control its functionality at the system level. They are located in the > This attribute is read-only to check the state of preferred core set > by the kernel parameter. > > +``cpb_boost`` > + Specifies whether core performance boost is requested to be enabled or disabled > + If core performance boost is disabled while a core is in a boosted P-state, the > + core automatically transitions to the highest performance non-boosted P-state. > + AMD Core Performance Boost(CPB) is controlled by this attribute file which allows > + user to change all cores frequency boosting state. It supports all amd-pstate modes. > + > + "0" Disable Core Performance Boosting > + "1" Enable Core Performance Boosting > + Please switch to disabled/enabled as suggested in patch 5. > ``cpupower`` tool support for ``amd-pstate`` > =============================================== >
diff --git a/Documentation/admin-guide/pm/amd-pstate.rst b/Documentation/admin-guide/pm/amd-pstate.rst index 1e0d101b020a..bcc0d9404c18 100644 --- a/Documentation/admin-guide/pm/amd-pstate.rst +++ b/Documentation/admin-guide/pm/amd-pstate.rst @@ -440,6 +440,16 @@ control its functionality at the system level. They are located in the This attribute is read-only to check the state of preferred core set by the kernel parameter. +``cpb_boost`` + Specifies whether core performance boost is requested to be enabled or disabled + If core performance boost is disabled while a core is in a boosted P-state, the + core automatically transitions to the highest performance non-boosted P-state. + AMD Core Performance Boost(CPB) is controlled by this attribute file which allows + user to change all cores frequency boosting state. It supports all amd-pstate modes. + + "0" Disable Core Performance Boosting + "1" Enable Core Performance Boosting + ``cpupower`` tool support for ``amd-pstate`` ===============================================