From 08f48f3234a79bca86c2283a166aec83bf52b265 Mon Sep 17 00:00:00 2001 From: Alistair Popple Date: Mon, 11 Jan 2016 16:53:50 +1100 Subject: [PATCH] powerpc/powernv: Reserve PE#0 on NPU P8+ hardware reports all errors on PE#0. This patch ensures PE#0 is not assigned to NPU devices so that it can be used for EEH. Signed-off-by: Alistair Popple Signed-off-by: Michael Ellerman --- arch/powerpc/platforms/powernv/pci-ioda.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 0b625272f3ca..573ae1994097 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -1186,9 +1186,11 @@ static void pnv_pci_ioda_setup_PEs(void) * functions. PCI bus dependent PEs are required for the * remaining types of PHBs. */ - if (phb->type == PNV_PHB_NPU) + if (phb->type == PNV_PHB_NPU) { + /* PE#0 is needed for error reporting */ + pnv_ioda_reserve_pe(phb, 0); pnv_ioda_setup_npu_PEs(hose->bus); - else + } else pnv_ioda_setup_PEs(hose->bus); } } -- 2.20.1