From: Gavin Shan <gwshan@linux.vnet.ibm.com>
Date: Tue, 30 Sep 2014 02:38:52 +0000 (+1000)
Subject: powerpc/eeh: Freeze PE before PE reset
X-Git-Tag: fixes-against-v3.18-rc2~117^2~55
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0d5ee5205e62908172bf5e1a5fd171ba262fdb75;p=pandora-kernel.git

powerpc/eeh: Freeze PE before PE reset

The patch adds one more option (EEH_OPT_FREEZE_PE) to set_option()
method to proactively freeze PE, which will be issued before resetting
pass-throughed PE to drop MMIO access during reset because it's
always contributing to recursive EEH error.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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