On 12/17/20 4:01 PM, Terry Bowman wrote: > Bugzilla: http://bugzilla.redhat.com/1886943 > Brew: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=33761621 > Upstream: 5.10-rc, https://lkml.org/lkml/2020/10/19/488 > Test: Manual testing looking for PSD override in dmesg. > Using amd-daytona-01.khw1.lab.eng.bos.redhat.com, EPYC Milan > > commit 5368512abe08 ("acpi-cpufreq: Honor _PSD table setting on new AMD CPUs") > Author: Wei Huang <wei.huang2@xxxxxxx> > Date: Sun Oct 18 22:57:41 2020 -0500 > > acpi-cpufreq: Honor _PSD table setting on new AMD CPUs > > acpi-cpufreq has a old quirk that overrides the _PSD table supplied by > BIOS on AMD CPUs. However the _PSD table of new AMD CPUs (Family 19h+) > now accurately reports the P-state dependency of CPU cores. Hence this > quirk needs to be fixed in order to support new CPUs' frequency > control. > > Fixes: acd316248205 ("acpi-cpufreq: Add quirk to disable _PSD usage on all AMD CPUs") > Signed-off-by: Wei Huang <wei.huang2@xxxxxxx> > [ rjw: Subject edit ] > Cc: 3.10+ <stable@xxxxxxxxxxxxxxx> # 3.10+ > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > [ tb: reformat for checkpatch ] > Signed-off-by: Terry Bowman <tbowman@xxxxxxxxxx> > Acked-by: Prarit Bhargava <prarit@xxxxxxxxxx> P.
