From 79cd95200035fb4b39b089dd01c13302eee6ee03 Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Tue, 12 May 2015 17:05:32 +1000 Subject: [PATCH] powerpc/eeh: Dump PHB diag-data for non-existing PE When detecting EEH error on non-existing PE, including the reserved one, the PE is simply unfrozen without dumping the PHB diag-data, which is useful for locating the root cause of the EEH error. The patch dumps the PHB diag-data when non-existing PE reports error. Signed-off-by: Gavin Shan Signed-off-by: Michael Ellerman --- arch/powerpc/platforms/powernv/eeh-powernv.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c index b357cdc3f472..0fe2b0cb587a 100644 --- a/arch/powerpc/platforms/powernv/eeh-powernv.c +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c @@ -1394,11 +1394,19 @@ static int pnv_eeh_next_error(struct eeh_pe **pe) */ if (pnv_eeh_get_pe(hose, be64_to_cpu(frozen_pe_no), pe)) { - /* Try best to clear it */ pr_info("EEH: Clear non-existing PHB#%x-PE#%llx\n", hose->global_number, be64_to_cpu(frozen_pe_no)); pr_info("EEH: PHB location: %s\n", eeh_pe_loc_get(phb_pe)); + + /* Dump PHB diag-data */ + rc = opal_pci_get_phb_diag_data2(phb->opal_id, + phb->diag.blob, PNV_PCI_DIAG_BUF_SIZE); + if (rc == OPAL_SUCCESS) + pnv_pci_dump_phb_diag_data(hose, + phb->diag.blob); + + /* Try best to clear it */ opal_pci_eeh_freeze_clear(phb->opal_id, frozen_pe_no, OPAL_EEH_ACTION_CLEAR_FREEZE_ALL); -- 2.34.1