Documentation: kernel parameters: per core P-State control

Additional command line control to enable per core performance
control.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 37babf9..fa2336e 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1780,6 +1780,9 @@
 			Description Table, specifies preferred power management
 			profile as "Enterprise Server" or "Performance Server",
 			then this feature is turned on by default.
+		per_cpu_perf_limits
+			Allow per-logical-CPU P-State performance control limits using
+			cpufreq sysfs interface
 
 	intremap=	[X86-64, Intel-IOMMU]
 			on	enable Interrupt Remapping (default)