diff options
| -rw-r--r-- | arch/powerpc/include/asm/eeh.h | 5 | ||||
| -rw-r--r-- | arch/powerpc/kernel/eeh_pe.c | 14 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/eeh-powernv.c | 11 |
3 files changed, 25 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index 0652ebe117af..9c11d1ed6a36 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -38,8 +38,9 @@ struct device_node; #define EEH_FORCE_DISABLED 0x02 /* EEH disabled */ #define EEH_PROBE_MODE_DEV 0x04 /* From PCI device */ #define EEH_PROBE_MODE_DEVTREE 0x08 /* From device tree */ -#define EEH_ENABLE_IO_FOR_LOG 0x10 /* Enable IO for log */ -#define EEH_EARLY_DUMP_LOG 0x20 /* Dump log immediately */ +#define EEH_VALID_PE_ZERO 0x10 /* PE#0 is valid */ +#define EEH_ENABLE_IO_FOR_LOG 0x20 /* Enable IO for log */ +#define EEH_EARLY_DUMP_LOG 0x40 /* Dump log immediately */ /* * Delay for PE reset, all in ms diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c index 5a63e2b0f65b..fa950fbc2d97 100644 --- a/arch/powerpc/kernel/eeh_pe.c +++ b/arch/powerpc/kernel/eeh_pe.c @@ -239,10 +239,18 @@ static void *__eeh_pe_get(void *data, void *flag) if (pe->type & EEH_PE_PHB) return NULL; - /* We prefer PE address */ - if (edev->pe_config_addr && - (edev->pe_config_addr == pe->addr)) + /* + * We prefer PE address. For most cases, we should + * have non-zero PE address + */ + if (eeh_has_flag(EEH_VALID_PE_ZERO)) { + if (edev->pe_config_addr == pe->addr) + return pe; + } else { + if (edev->pe_config_addr && + (edev->pe_config_addr == pe->addr)) return pe; + } /* Try BDF address */ if (edev->config_addr && diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c index 1d19e7917d7f..e261869adc86 100644 --- a/arch/powerpc/platforms/powernv/eeh-powernv.c +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c @@ -68,6 +68,17 @@ static int powernv_eeh_init(void) if (phb->model == PNV_PHB_MODEL_P7IOC) eeh_add_flag(EEH_ENABLE_IO_FOR_LOG); + + /* + * PE#0 should be regarded as valid by EEH core + * if it's not the reserved one. Currently, we + * have the reserved PE#0 and PE#127 for PHB3 + * and P7IOC separately. So we should regard + * PE#0 as valid for P7IOC. + */ + if (phb->ioda.reserved_pe != 0) + eeh_add_flag(EEH_VALID_PE_ZERO); + break; } |