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This interrupt is enabled during RPS initialization, and now needs to be done by SLPC code. It allows ARAT timer expiry interrupts to get forwarded to GuC. v2: Fix comment (Matthew Brost) v3: checkpatch() Reviewed-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com> Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210730202119.23810-11-vinay.belgaumkar@intel.com