tree 0eec5feabb4a673a58f036aa940c96f11bfe0c23
parent e2af155c2aea0e705ed4ef33aedc25e50a788be1
author Gavin Shan <shangw@linux.vnet.ibm.com> 1330373035 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1331251789 +1100

powerpc/eeh: pseries platform EEH operations

There're 4 EEH operations that are covered by the dedicated RTAS
call <ibm,set-eeh-option>: enable or disable EEH, enable MMIO and
enable DMA. At early stage of system boot, the EEH would be tried
to enable on PCI device related device node. MMIO and DMA for
particular PE should be enabled when doing recovery on EEH errors
so that the PE could function properly again.

The patch implements it and abstract that through struct
eeh_ops::set_eeh. It would be help for EEH to support multiple
platforms in future.

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