From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Fri, 9 Jul 2010 05:30:22 +0000 (+1000)
Subject: powerpc/book3e: Don't re-trigger decrementer on lazy irq restore
X-Git-Tag: v2.6.36-rc1~559^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e8775d4aa17d70d123814e68a6a51bbea50e5c16;p=pandora-kernel.git

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

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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