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The package power limit notification interrupt is primarily for system diagnosis, and should not be blindly enabled on every system by default -- particuarly since Linux does nothing in the handler except count how many times it has been called... Add a new kernel cmdline parameter "int_pln_enable" for situations where users want to oberve these events via existing system counters: $ grep TRM /proc/interrupts $ grep . /sys/devices/system/cpu/cpu*/thermal_throttle/* https://bugzilla.kernel.org/show_bug.cgi?id=36182 Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>