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[1/1,Noble,aws] cpufreq: intel_pstate: Support Emerald Rapids OOB mode

Message ID 20240912195144.71142-2-philip.cox@canonical.com
State New
Headers show
Series [1/1,Noble,aws] cpufreq: intel_pstate: Support Emerald Rapids OOB mode | expand

Commit Message

Philip Cox Sept. 12, 2024, 7:51 p.m. UTC 
From: Srinivas Pandruvada <srinivas.pandruvada@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@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
(back ported from commit 7e1c3f584ee78b0d0210fc424420d9529f3ca952)
[philcox: context changes]
Signed-off-by: Philip Cox <philip.cox@canonical.com>
---
 drivers/cpufreq/intel_pstate.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

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),
 	{}
 };