[PATCH 1/1][Noble][aws] cpufreq: intel_pstate: Support Emerald Rapids OOB mode
Philip Cox
philip.cox at canonical.com
Thu Sep 12 19:51:44 UTC 2024
From: Srinivas Pandruvada <srinivas.pandruvada at linux.intel.com>
BugLink: https://bugs.launchpad.net/bugs/2080569
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 at linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki at intel.com>
(back ported from commit 7e1c3f584ee78b0d0210fc424420d9529f3ca952)
[philcox: context changes]
Signed-off-by: Philip Cox <philip.cox at canonical.com>
---
drivers/cpufreq/intel_pstate.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 79619227ea51..c90e471a35d3 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -2445,6 +2445,7 @@ static const struct x86_cpu_id intel_pstate_cpu_oob_ids[] __initconst = {
X86_MATCH(SKYLAKE_X, core_funcs),
X86_MATCH(ICELAKE_X, core_funcs),
X86_MATCH(SAPPHIRERAPIDS_X, core_funcs),
+ X86_MATCH(EMERALDRAPIDS_X, core_funcs),
{}
};
--
2.34.1
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