diff options
| -rw-r--r-- | arch/powerpc/include/asm/eeh.h | 8 | ||||
| -rw-r--r-- | arch/powerpc/kernel/eeh.c | 22 |
2 files changed, 27 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index f3b49d6d5259..beb3cbcb76f8 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -132,7 +132,7 @@ struct eeh_ops { char *name; int (*init)(void); void* (*of_probe)(struct device_node *dn, void *flag); - void* (*dev_probe)(struct pci_dev *dev, void *flag); + int (*dev_probe)(struct pci_dev *dev, void *flag); int (*set_option)(struct eeh_pe *pe, int option); int (*get_pe_addr)(struct eeh_pe *pe); int (*get_state)(struct eeh_pe *pe, int *state); @@ -196,6 +196,7 @@ struct pci_bus *eeh_pe_bus_get(struct eeh_pe *pe); void *eeh_dev_init(struct device_node *dn, void *data); void eeh_dev_phb_init_dynamic(struct pci_controller *phb); +int __init eeh_init(void); int __init eeh_ops_register(struct eeh_ops *ops); int __exit eeh_ops_unregister(const char *name); unsigned long eeh_check_failure(const volatile void __iomem *token, @@ -224,6 +225,11 @@ void eeh_remove_bus_device(struct pci_dev *, int); #else /* !CONFIG_EEH */ +static inline int eeh_init(void) +{ + return 0; +} + static inline void *eeh_dev_init(struct device_node *dn, void *data) { return NULL; diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index 8a8345193083..c865c5f54b18 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -674,11 +674,21 @@ int __exit eeh_ops_unregister(const char *name) * Even if force-off is set, the EEH hardware is still enabled, so that * newer systems can boot. */ -static int __init eeh_init(void) +int __init eeh_init(void) { struct pci_controller *hose, *tmp; struct device_node *phb; - int ret; + static int cnt = 0; + int ret = 0; + + /* + * We have to delay the initialization on PowerNV after + * the PCI hierarchy tree has been built because the PEs + * are figured out based on PCI devices instead of device + * tree nodes + */ + if (machine_is(powernv) && cnt++ <= 0) + return ret; /* call platform initialization function */ if (!eeh_ops) { @@ -700,6 +710,14 @@ static int __init eeh_init(void) phb = hose->dn; traverse_pci_devices(phb, eeh_ops->of_probe, NULL); } + } else if (eeh_probe_mode_dev()) { + list_for_each_entry_safe(hose, tmp, + &hose_list, list_node) + pci_walk_bus(hose->bus, eeh_ops->dev_probe, NULL); + } else { + pr_warning("%s: Invalid probe mode %d\n", + __func__, eeh_probe_mode); + return -EINVAL; } if (eeh_subsystem_enabled) |