[v4,0/5] cpufreq: intel_pstate: Address some HWP-related oddities

Message

Rafael J. Wysocki Sept. 1, 2020, 5:23 p.m. UTC

Hi All,

The last two patches in the v3 needed to be updated to take re-enabling of HWP
after an ACPI S3 suspend/resume cycle into account appropriately.  The first
three patches are the same as before.

The purpose of this series is to address some peculiarities related to
taking CPUs offline/online and switching between different operation
modes with HWP enabled that have become visible after allowing the
driver to work in the passive mode with HWP enabled in 5.9-rc1 (and
one that was there earlier, but can be addressed easily after the
changes made in 5.9-rc1).

Please refer to the patch changelogs for details.

For easier testing/review, the series is available from the git branch at:

 git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \
 intel_pstate-testing

I've done my best to address all of the possible corner cases, but the test
matrix is quite extensive and I may have missed something, so go ahead
and test.

Thanks,
Rafael

Comments

Srinivas Pandruvada Sept. 1, 2020, 7:07 p.m. UTC | #1

On Tue, 2020-09-01 at 19:23 +0200, Rafael J. Wysocki wrote:
> Hi All,
> 
> The last two patches in the v3 needed to be updated to take re-
> enabling of HWP
> after an ACPI S3 suspend/resume cycle into account
> appropriately.  The first
> three patches are the same as before.
> 
> The purpose of this series is to address some peculiarities related
> to
> taking CPUs offline/online and switching between different operation
> modes with HWP enabled that have become visible after allowing the
> driver to work in the passive mode with HWP enabled in 5.9-rc1 (and
> one that was there earlier, but can be addressed easily after the
> changes made in 5.9-rc1).
> 
> Please refer to the patch changelogs for details.
> 
> For easier testing/review, the series is available from the git
> branch at:
> 
>  git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \
>  intel_pstate-testing
> 
> I've done my best to address all of the possible corner cases, but
> the test
> matrix is quite extensive and I may have missed something, so go
> ahead
> and test.

Acked-by: Srinivas Pandruvada <[e-mail]>


> 
> Thanks,
> Rafael
> 
> 
>