powerpc/book3e: Don't re-trigger decrementer on lazy irq restore

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The decrementer on BookE acts as a level interrupt and doesn't
need to be re-triggered when going negative. It doesn't go
negative anyways (unless programmed to auto-reload with a
negative value) as it stops when reaching 0.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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Benjamin Herrenschmidt 2010-07-09 15:30:22 +10:00

parent b9f1cd71db

commit e8775d4aa1

1 changed files with 9 additions and 0 deletions

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arch/powerpc/kernel/irq.c

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