x86/cpu: Add INTEL_LUNARLAKE_M to X86_BUG_MONITOR #5236
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Under some conditions, MONITOR wakeups on Lunar Lake processors can be lost, resulting in significant user-visible delays. Add LunarLake to X86_BUG_MONITOR so that wake_up_idle_cpu() always sends an IPI, avoiding this potential delay. Also update the X86_BUG_MONITOR workaround to handle the new smp_kick_mwait_play_dead() path. Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219364 Cc: stable@vger.kernel.org # 6.11 Signed-off-by: Len Brown <len.brown@intel.com>
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Replaced with upstream patch. |
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Under some conditions, MONITOR wakeups on Lunar Lake processors can be lost, resulting in significant user-visible delays.
Add LunarLake to X86_BUG_MONITOR so that wake_up_idle_cpu() always sends an IPI, avoiding this potential delay.
Also update the X86_BUG_MONITOR workaround to handle the new smp_kick_mwait_play_dead() path.
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219364
Cc: stable@vger.kernel.org # 6.11