ACK: [PATCH 0/8] [SRU][j:linux] Fix AMD-PState driver for Genoa CPU

[Tim Gardner]

On 11/28/22 9:47 AM, Paolo Pisati wrote:
> BugLink: https://bugs.launchpad.net/bugs/1998106
> 
> [Impact]
> 
> During AMD Genoa development, the datacenter team identified performance
> regressions that were caused by the amd-pstate driver. A first round of fixes
> already landed upstream (v6.1-rc7) in the amd-pstate driver, and should be
> backported to all the affected kernels.
> 
> [Fix]
> 
> Backport the upstream amd-pstate fixes:
> 
> https://lore.kernel.org/linux-pm/20221117073541.3350600-1-Perry.Yuan@amd.com/T/#m4616d857ca472937d1e1d31131ddc3261fa17b2a
> 
> [Regression potential]
> 
> Clean cherry-picks of upstream fixes, impact a single driver (amd-pstate) and
> the new mode (passive) is disabled by default/opt-in. Cherry-picked three
> additional documentation patches to make the entire set apply cleanly.
> 
> Jan Engelhardt (1):
>    Documentation: amd-pstate: grammar and sentence structure updates
> 
> Jinzhou Su (1):
>    Documentation: amd-pstate: add tracer tool introduction
> 
> Meng Li (1):
>    Documentation: amd-pstate: Add unit test introduction
> 
> Perry Yuan (4):
>    cpufreq: amd-pstate: change amd-pstate driver to be built-in type
>    cpufreq: amd-pstate: add amd-pstate driver parameter for mode
>      selection
>    Documentation: amd-pstate: add driver working mode introduction
>    Documentation: add amd-pstate kernel command line options
> 
> Wyes Karny (1):
>    cpufreq: amd-pstate: cpufreq: amd-pstate: reset MSR_AMD_PERF_CTL
>      register at init
> 
>   .../admin-guide/kernel-parameters.txt         |  11 +
>   Documentation/admin-guide/pm/amd-pstate.rst   | 249 ++++++++++++------
>   drivers/cpufreq/Kconfig.x86                   |   2 +-
>   drivers/cpufreq/amd-pstate.c                  |  49 ++--
>   4 files changed, 219 insertions(+), 92 deletions(-)
> 
Acked-by: Tim Gardner <tim.gardner at canonical.com>
-- 
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Tim Gardner
Canonical, Inc