diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/platforms/powernv/eeh-ioda.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c index 3a755b5f9952..0844e00ccdd8 100644 --- a/arch/powerpc/platforms/powernv/eeh-ioda.c +++ b/arch/powerpc/platforms/powernv/eeh-ioda.c @@ -510,12 +510,10 @@ static int ioda_eeh_reset(struct eeh_pe *pe, int option) int ret; /* - * The rules applied to reset, either fundamental or hot reset: - * - * We always reset the direct upstream bridge of the PE. If the - * direct upstream bridge isn't root bridge, we always take hot - * reset no matter what option (fundamental or hot) is. Otherwise, - * we should do the reset according to the required option. + * For PHB reset, we always have complete reset. For those PEs whose + * primary bus derived from root complex (root bus) or root port + * (usually bus#1), we apply hot or fundamental reset on the root port. + * For other PEs, we always have hot reset on the PE primary bus. * * Here, we have different design to pHyp, which always clear the * frozen state during PE reset. However, the good idea here from @@ -529,7 +527,8 @@ static int ioda_eeh_reset(struct eeh_pe *pe, int option) ret = ioda_eeh_phb_reset(hose, option); } else { bus = eeh_pe_bus_get(pe); - if (pci_is_root_bus(bus)) + if (pci_is_root_bus(bus) || + pci_is_root_bus(bus->parent)) ret = ioda_eeh_root_reset(hose, option); else ret = ioda_eeh_bridge_reset(bus->self, option); |