On Fri, Dec 11, 2020 at 07:56:40AM +0900, Punit Agrawal wrote:
> Booting Linux on a Zen2 based processor (family: 0x17, model: 0x60,
> stepping: 0x1) shows the following message in the logs -
>
> acpi_cpufreq: overriding BIOS provided _PSD data
>
> Although commit 5368512abe08 ("acpi-cpufreq: Honor _PSD table setting
> on new AMD CPUs") indicates that the override is not required for Zen3
> onwards, it seems that domain information can be trusted even on
> certain earlier systems. Update the check, to skip the override for
> Zen2 processors known to work without the override.
>
> Signed-off-by: Punit Agrawal <[email protected]>
> Cc: Wei Huang <[email protected]>
> ---
> drivers/cpufreq/acpi-cpufreq.c | 9 +++++++--
> 1 file changed, 7 insertions(+), 2 deletions(-)
What about answers to those questions first?
https://lkml.kernel.org/r/[email protected]
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Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
