Merge: cpufreq: intel_pstate: Support Emerald Rapids OOB mode

MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/5236

JIRA: https://issues.redhat.com/browse/RHEL-58619  
  
Conflicts: Use EMERALDRAPIDS_X versus upstream has INTEL_EMERALDRAPIDS_X.  
  
Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=64322156  
  
Tested: Successful platform test ran on Intel (intel-eaglestream-emr-04) system.  
  
commit 7e1c3f5  
Author: Srinivas Pandruvada <[email protected]>  
Date:   Wed May 29 22:53:30 2024 -0700  
  
    cpufreq: intel_pstate: Support Emerald Rapids OOB mode  
  
    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 <[email protected]>  
    Signed-off-by: Rafael J. Wysocki <[email protected]>  
  
Signed-off-by: Steve Best <[email protected]>  
  
stevediff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c  
index 71802d3..8379e05d1a71 100644

Approved-by: Tony Camuso <[email protected]>
Approved-by: David Arcari <[email protected]>
Approved-by: CKI KWF Bot <[email protected]>

Merged-by: Rado Vrbovsky <[email protected]>

Author: emmil

drivers/cpufreq/intel_pstate.c

@@ -2403,6 +2403,7 @@ 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),
 	{}
 };
 #endif