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authorGavin Shan <shangw@linux.vnet.ibm.com>2014-02-12 15:24:56 +0800
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-02-17 11:19:39 +1100
commit66f9af83e56bfa12964d251df9d60fb571579913 (patch)
tree0e4a3439cd8b3675f5a2cac4d4a010fd00698e23 /arch/powerpc/platforms/powernv/eeh-ioda.c
parent2ec5a0adf60c23bb6b0a95d3b96a8c1ff1e1aa5a (diff)
powerpc/eeh: Disable EEH on reboot
We possiblly detect EEH errors during reboot, particularly in kexec path, but it's impossible for device drivers and EEH core to handle or recover them properly. The patch registers one reboot notifier for EEH and disable EEH subsystem during reboot. That means the EEH errors is going to be cleared by hardware reset or second kernel during early stage of PCI probe. Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/powernv/eeh-ioda.c')
-rw-r--r--arch/powerpc/platforms/powernv/eeh-ioda.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c
index fcb79cffdb66..f51474336460 100644
--- a/arch/powerpc/platforms/powernv/eeh-ioda.c
+++ b/arch/powerpc/platforms/powernv/eeh-ioda.c
@@ -44,7 +44,8 @@ static int ioda_eeh_event(struct notifier_block *nb,
/* We simply send special EEH event */
if ((changed_evts & OPAL_EVENT_PCI_ERROR) &&
- (events & OPAL_EVENT_PCI_ERROR))
+ (events & OPAL_EVENT_PCI_ERROR) &&
+ eeh_enabled())
eeh_send_failure_event(NULL);
return 0;

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