powerpc/powernv: Add PE to its own PELTV

commit 631ad691b5818291d89af9be607d2fe40be0886e upstream.

We need add PE to its own PELTV. Otherwise, the errors originated
from the PE might contribute to other PEs. In the result, we can't
clear up the error successfully even we're checking and clearing
errors during access to PCI config space.

Reported-by: kalshett@in.ibm.com
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index fbdd74dac3ac6573277ba4e6e853c5311ff8e0df..5da8e8df592284732819421f263c55e0830012b7 100644 (file)
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -613,13 +613,23 @@ static int __devinit pnv_ioda_configure_pe(struct pnv_phb *phb,
                rid_end = pe->rid + 1;
        }
 
-       /* Associate PE in PELT */
+       /*
+        * Associate PE in PELT. We need add the PE into the
+        * corresponding PELT-V as well. Otherwise, the error
+        * originated from the PE might contribute to other
+        * PEs.
+        */
        rc = opal_pci_set_pe(phb->opal_id, pe->pe_number, pe->rid,
                             bcomp, dcomp, fcomp, OPAL_MAP_PE);
        if (rc) {
                pe_err(pe, "OPAL error %ld trying to setup PELT table\n", rc);
                return -ENXIO;
        }
+
+       rc = opal_pci_set_peltv(phb->opal_id, pe->pe_number,
+                               pe->pe_number, OPAL_ADD_PE_TO_DOMAIN);
+       if (rc)
+               pe_warn(pe, "OPAL error %d adding self to PELTV\n", rc);
        opal_pci_eeh_freeze_clear(phb->opal_id, pe->pe_number,
                                  OPAL_EEH_ACTION_CLEAR_FREEZE_ALL);