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cpufreq: intel_pstate: Support Emerald Rapids OOB mode

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BugLink: https://bugs.launchpad.net/bugs/2084834

Prevent intel_pstate from loading when OOB (Out Of Band) P-states mode is
enabled in Emerald Rapids.

The OOB identifying bits are same as for the prior generation CPUs
like Sapphire Rapids servers, so also add Emerald Rapids to the
intel_pstate_cpu_oob_ids[] list.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
(cherry picked from commit 7e1c3f584ee78b0d0210fc424420d9529f3ca952)
Signed-off-by: Thibault Ferrante <thibault.ferrante@canonical.com>
Acked-by: Guoqing Jiang <guoqing.jiang@canonical.com>
Acked-by: Ivan Hu <ivan.hu@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Srinivas Pandruvada
2024-10-17 22:37:57 +02:00
committed by Mehmet Basaran
parent 61b4db9d8b
commit 08fef367e1
1 changed files with 1 additions and 0 deletions
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drivers/cpufreq/intel_pstate.c
+1
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@@ -2444,6 +2444,7 @@ static const struct x86_cpu_id intel_pstate_cpu_oob_ids[] __initconst = {
X86_MATCH(INTEL_SKYLAKE_X, core_funcs),
X86_MATCH(INTEL_ICELAKE_X, core_funcs),
X86_MATCH(INTEL_SAPPHIRERAPIDS_X, core_funcs),
X86_MATCH(INTEL_EMERALDRAPIDS_X, core_funcs),
{}
};