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@amd.com 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@amd.com [ rjw: Subject edit ] Cc: 3.10+ stable@vger.kernel.org # 3.10+ Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com [ tb: reformat for checkpatch ] Signed-off-by: Terry Bowman tbowman@redhat.com
Acked-by: Prarit Bhargava prarit@redhat.com
P.