Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | [PATCH v3 0/4] cpufreq: intel_pstate: Handle powersave governor correctly in the passive mode with HWP | Date | Tue, 10 Nov 2020 18:21:56 +0100 |
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Hi,
On Monday, November 9, 2020 5:49:49 PM CET Rafael J. Wysocki wrote: > > Even after the changes made very recently, the handling of the powersave > governor is not exactly as expected when intel_pstate operates in the > "passive" mode with HWP enabled. > > Namely, in that case HWP is not limited to the policy min frequency, but it > can scale the frequency up to the policy max limit and it cannot be constrained > currently, because there are no provisions for that in the framework. > > To address that, patches [1-3/4] add a new governor flag to indicate that this > governor wants the target frequency to be set to the exact value passed to the > driver, if possible, and change the powersave and performance governors to have > that flag set. > > The last patch makes intel_pstate take that flag into account when programming > the HWP Request MSR.
The v3 simply uses different names for the new governor flags.
Thanks!
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