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clocksource: Workaround the hpet fallback problem

Waiman Long requested to merge llong1/centos-stream-9:bz2017164_tsc into main

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2017164
MR: !159 (merged)

The first patch is fixing HPET problem on some Intel system that may cause problem. Patch 2 is a RHEL only patch to temporarily increase the WATCHDOG_MAX_SKEW threshold to avoid triggering hpet fallback problem. It will be reverted once the official upstream patch that address the problem is backported.

Signed-off-by: Waiman Long longman@redhat.com

Waiman Long (2):
  x86/hpet: Use another crystalball to evaluate HPET usability
  clocksource: Increase WATCHDOG_MAX_SKEW

 arch/x86/kernel/early-quirks.c |  6 ---
 arch/x86/kernel/hpet.c         | 81 ++++++++++++++++++++++++++++++++++
 kernel/time/clocksource.c      |  2 +-
 3 files changed, 82 insertions(+), 7 deletions(-)
Edited by Waiman Long

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