]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
acpi-cpufreq: Honor _PSD table setting on new AMD CPUs
authorWei Huang <wei.huang2@amd.com>
Mon, 19 Oct 2020 03:57:41 +0000 (22:57 -0500)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Mon, 19 Oct 2020 15:28:43 +0000 (17:28 +0200)
commit5368512abe08a28525d9b24abbfc2a72493e8dba
treec3a881094bc0a242c34f086418392fe609768c1a
parentcdc1719cd885ef490e30c14c01a6e7fee42bf2e2
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>
drivers/cpufreq/acpi-cpufreq.c