diff options
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh.c | 14 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/pci_dlpar.c | 36 | ||||
| -rw-r--r-- | include/asm-powerpc/eeh.h | 7 |
3 files changed, 38 insertions, 19 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 83578313ee7..2ab9dcdfb41 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -893,6 +893,20 @@ void eeh_add_device_tree_early(struct device_node *dn) } EXPORT_SYMBOL_GPL(eeh_add_device_tree_early); +void eeh_add_device_tree_late(struct pci_bus *bus) +{ + struct pci_dev *dev; + + list_for_each_entry(dev, &bus->devices, bus_list) { + eeh_add_device_late(dev); + if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { + struct pci_bus *subbus = dev->subordinate; + if (subbus) + eeh_add_device_tree_late(subbus); + } + } +} + /** * eeh_add_device_late - perform EEH initialization for the indicated pci device * @dev: pci device for which to set up EEH diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c index bdaa8aabdaa..f3bad900bbc 100644 --- a/arch/powerpc/platforms/pseries/pci_dlpar.c +++ b/arch/powerpc/platforms/pseries/pci_dlpar.c @@ -106,6 +106,8 @@ pcibios_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus) } } } + + eeh_add_device_tree_late(bus); } EXPORT_SYMBOL_GPL(pcibios_fixup_new_pci_devices); @@ -114,7 +116,6 @@ pcibios_pci_config_bridge(struct pci_dev *dev) { u8 sec_busno; struct pci_bus *child_bus; - struct pci_dev *child_dev; /* Get busno of downstream bus */ pci_read_config_byte(dev, PCI_SECONDARY_BUS, &sec_busno); @@ -129,10 +130,6 @@ pcibios_pci_config_bridge(struct pci_dev *dev) pci_scan_child_bus(child_bus); - list_for_each_entry(child_dev, &child_bus->devices, bus_list) { - eeh_add_device_late(child_dev); - } - /* Fixup new pci devices without touching bus struct */ pcibios_fixup_new_pci_devices(child_bus, 0); @@ -160,18 +157,25 @@ pcibios_add_pci_devices(struct pci_bus * bus) eeh_add_device_tree_early(dn); - /* pci_scan_slot should find all children */ - slotno = PCI_SLOT(PCI_DN(dn->child)->devfn); - num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0)); - if (num) { - pcibios_fixup_new_pci_devices(bus, 1); - pci_bus_add_devices(bus); - } + if (_machine == PLATFORM_PSERIES_LPAR) { + /* use ofdt-based probe */ + of_scan_bus(dn, bus); + if (!list_empty(&bus->devices)) { + pcibios_fixup_new_pci_devices(bus, 0); + pci_bus_add_devices(bus); + } + } else { + /* use legacy probe */ + slotno = PCI_SLOT(PCI_DN(dn->child)->devfn); + num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0)); + if (num) { + pcibios_fixup_new_pci_devices(bus, 1); + pci_bus_add_devices(bus); + } - list_for_each_entry(dev, &bus->devices, bus_list) { - eeh_add_device_late (dev); - if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) - pcibios_pci_config_bridge(dev); + list_for_each_entry(dev, &bus->devices, bus_list) + if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) + pcibios_pci_config_bridge(dev); } } EXPORT_SYMBOL_GPL(pcibios_add_pci_devices); diff --git a/include/asm-powerpc/eeh.h b/include/asm-powerpc/eeh.h index b263fb2fa6e..7dfb408fe2c 100644 --- a/include/asm-powerpc/eeh.h +++ b/include/asm-powerpc/eeh.h @@ -27,6 +27,7 @@ #include <linux/string.h> struct pci_dev; +struct pci_bus; struct device_node; #ifdef CONFIG_EEH @@ -61,7 +62,7 @@ void __init pci_addr_cache_build(void); */ void eeh_add_device_early(struct device_node *); void eeh_add_device_tree_early(struct device_node *); -void eeh_add_device_late(struct pci_dev *); +void eeh_add_device_tree_late(struct pci_bus *); /** * eeh_remove_device - undo EEH setup for the indicated pci device @@ -116,12 +117,12 @@ static inline void pci_addr_cache_build(void) { } static inline void eeh_add_device_early(struct device_node *dn) { } -static inline void eeh_add_device_late(struct pci_dev *dev) { } - static inline void eeh_remove_device(struct pci_dev *dev) { } static inline void eeh_add_device_tree_early(struct device_node *dn) { } +static inline void eeh_add_device_tree_late(struct pci_bus *bus) { } + static inline void eeh_remove_bus_device(struct pci_dev *dev) { } #define EEH_POSSIBLE_ERROR(val, type) (0) #define EEH_IO_ERROR_VALUE(size) (-1UL) |