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| author | Len Brown <len.brown@intel.com> | 2024-11-12 21:07:00 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-14 20:03:31 +0100 |
| commit | 9722010afd9c069d725f431fab2fd7bc8513d64e (patch) | |
| tree | 6d9432191b4f04765c694a557f39a10c4295b354 /lib/timerqueue.c | |
| parent | d562b457e1c362f60d5c807a3a0775a9204a66a0 (diff) | |
| download | linux-9722010afd9c069d725f431fab2fd7bc8513d64e.tar.gz linux-9722010afd9c069d725f431fab2fd7bc8513d64e.tar.bz2 linux-9722010afd9c069d725f431fab2fd7bc8513d64e.zip | |
x86/cpu: Add Lunar Lake to list of CPUs with a broken MONITOR implementation
commit c9a4b55431e5220347881e148725bed69c84e037 upstream.
Under some conditions, MONITOR wakeups on Lunar Lake processors
can be lost, resulting in significant user-visible delays.
Add Lunar Lake to X86_BUG_MONITOR so that wake_up_idle_cpu()
always sends an IPI, avoiding this potential delay.
Reported originally here:
https://bugzilla.kernel.org/show_bug.cgi?id=219364
[ dhansen: tweak subject ]
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc:stable@vger.kernel.org
Link: https://lore.kernel.org/all/a4aa8842a3c3bfdb7fe9807710eef159cbf0e705.1731463305.git.len.brown%40intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/timerqueue.c')
0 files changed, 0 insertions, 0 deletions