Commit 49ea822d authored by Adamos Ttofari's avatar Adamos Ttofari Committed by yingbao jia
Browse files

cpufreq: intel_pstate: Add Ice Lake server to out-of-band IDs

mainline inclusion
from mainline-v5.16
commit cd23f02f
category: feature
bugzilla: https://gitee.com/openeuler/intel-kernel/issues/I78I87
CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d23f02f166892603eb9f2d488152b975872b682



Intel-SIG: commit cd23f02f cpufreq: intel_pstate: Add Ice Lake server to out-of-band IDs.
Backport for intel-pstate driver

-------------------------------------------------

Commit fbdc21e9 ("cpufreq: intel_pstate: Add Icelake servers
support in no-HWP mode") enabled the use of Intel P-State driver
for Ice Lake servers.

But it doesn't cover the case when OS can't control P-States.

Therefore, for Ice Lake server, if MSR_MISC_PWR_MGMT bits 8 or 18
are enabled, then the Intel P-State driver should exit as OS can't
control P-States.

Fixes: fbdc21e9 ("cpufreq: intel_pstate: Add Icelake servers support in no-HWP mode")
Signed-off-by: default avatarAdamos Ttofari <attofari@amazon.de>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: default avataryingbao jia <yingbao.jia@intel.com>
parent 5e730aa5
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