From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Thu, 20 Jun 2013 10:13:22 +0000 (+0800)
Subject: powernv/opal: Notifier for OPAL events
X-Git-Tag: v3.11-rc1~94^2~73
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1bc98de26d3f270e004421685a8e698e91cf95ca;p=pandora-kernel.git

powernv/opal: Notifier for OPAL events

This patch implements a notifier to receive a notification on OPAL
event mask changes. The notifier is only called as a result of an OPAL
interrupt, which will happen upon reception of FSP messages or PCI errors.
Any event mask change detected as a result of opal_poll_events() will not
result in a notifier call.

[benh: changelog]
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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