From: Niklas Söderlund Date: Wed, 8 Aug 2012 15:30:58 +0000 (-0300) Subject: i5100_edac: connect fault injection to debugfs node X-Git-Tag: v3.9-rc1~33^2~20 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9cbc6d38f25ae8fb3efd0b1c14f4f18c1d9f0369;p=pandora-kernel.git i5100_edac: connect fault injection to debugfs node Create a debugfs direcotry i5100_edac/mcX for each memory controller and add nodes to control how fault injection is preformed. After configuring an injection using inject_channel, inject_deviceptr1, inject_deviceptr2, inject_eccmask1, inject_eccmask2 and inject_hlinesel trigger the injection by writing anything to inject_enable. Example of a CE injection: echo 0 > /sys/kernel/debug/i5100_edac/mc0/inject_channel echo 1 > /sys/kernel/debug/i5100_edac/mc0/inject_hlinesel echo 61440 > /sys/kernel/debug/i5100_edac/mc0/inject_eccmask1 echo 1 > /sys/kernel/debug/i5100_edac/mc0/inject_enable Example of UE injection: echo 0 > /sys/kernel/debug/i5100_edac/mc0/inject_channel echo 2 > /sys/kernel/debug/i5100_edac/mc0/inject_hlinesel echo 65535 > /sys/kernel/debug/i5100_edac/mc0/inject_eccmask1 echo 65535 > /sys/kernel/debug/i5100_edac/mc0/inject_eccmask2 echo 17 > /sys/kernel/debug/i5100_edac/mc0/inject_deviceptr1 echo 0 > /sys/kernel/debug/i5100_edac/mc0/inject_deviceptr2 echo 1 > /sys/kernel/debug/i5100_edac/mc0/inject_enable Sometimes it is needed to enable the injection more then once (echo to the inject_enable node) for the injection to happen, I am not sure why. Signed-off-by: Niklas Söderlund Signed-off-by: Mauro Carvalho Chehab --- Reading git-diff-tree failed