Commit cd23f02f authored by Adamos Ttofari's avatar Adamos Ttofari Committed by Rafael J. Wysocki
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cpufreq: intel_pstate: Add Ice Lake server to out-of-band IDs 



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>
parent 13605725

drivers/cpufreq/intel_pstate.c

+1 −0
Original line number Diff line number Diff line
@@ -2353,6 +2353,7 @@ static const struct x86_cpu_id intel_pstate_cpu_oob_ids[] __initconst = { 
	X86_MATCH(BROADWELL_D,		core_funcs),

	X86_MATCH(BROADWELL_X,		core_funcs),

	X86_MATCH(SKYLAKE_X,		core_funcs),

	X86_MATCH(ICELAKE_X,		core_funcs),

	{}

};