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[edk2,v2,0/1] ArmPkg/TimerDxe: Add ISB for timer compare value reload

Message ID 1520901090-96694-1-git-send-email-heyi.guo@linaro.org
Headers show
Series ArmPkg/TimerDxe: Add ISB for timer compare value reload | expand

Message

gary guo March 13, 2018, 12:31 a.m. UTC 
After rebasing to edk2 commit 5e3719a, we found D05 would hang after printing a
lot of "Spurious interrupt" messages. The issue would gone away if we restored
the removal of "enable interrupt source":
  gInterrupt->EnableInterruptSource (gInterrupt, Source);

It can also be fixed if we add a "ISB" after reloading timer compare value, and
we agree that it makes sense to do that.

Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>

Heyi Guo (1):
  ArmPkg/TimerDxe: Add ISB for timer compare value reload

 ArmPkg/Drivers/TimerDxe/TimerDxe.c | 1 +
 1 file changed, 1 insertion(+)

-- 
2.7.4

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