CPU_MWAIT_HINT_AUTODEEP
if (hint == CPU_MWAIT_HINT_AUTODEEP) {
} else if (hint == CPU_MWAIT_HINT_AUTODEEP) {
else if (allow_auto && hint == CPU_MWAIT_HINT_AUTODEEP)
hint = CPU_MWAIT_HINT_AUTODEEP;