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| author |   Gavin Shan <shangw@linux.vnet.ibm.com> | 2014-02-12 15:24:56 +0800 |
|---|---|---|
| committer |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-02-17 11:19:39 +1100 |
| commit | 66f9af83e56bfa12964d251df9d60fb571579913 (patch) | |
| tree | 0e4a3439cd8b3675f5a2cac4d4a010fd00698e23 /arch/powerpc/platforms/powernv/eeh-ioda.c | |
| parent | powerpc/eeh: Cleanup on eeh_subsystem_enabled (diff) | |
| download | linux-dev-66f9af83e56bfa12964d251df9d60fb571579913.tar.xz linux-dev-66f9af83e56bfa12964d251df9d60fb571579913.zip | |
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 '')
| -rw-r--r-- | arch/powerpc/platforms/powernv/eeh-ioda.c | 3 |
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; |