diff options
| -rw-r--r-- | drivers/pci/hotplug/rpadlpar_core.c | 35 | ||||
| -rw-r--r-- | drivers/pci/hotplug/rpaphp.h | 1 | ||||
| -rw-r--r-- | drivers/pci/hotplug/rpaphp_pci.c | 72 |
3 files changed, 47 insertions, 61 deletions
diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c index 7f868edaa72d..2ee7eb513e6c 100644 --- a/drivers/pci/hotplug/rpadlpar_core.c +++ b/drivers/pci/hotplug/rpadlpar_core.c @@ -165,6 +165,20 @@ static int pci_add_secondary_bus(struct device_node *dn, return 0; } +static struct pci_dev *dlpar_find_new_dev(struct pci_bus *parent, + struct device_node *dev_dn) +{ + struct pci_dev *tmp = NULL; + struct device_node *child_dn; + + list_for_each_entry(tmp, &parent->devices, bus_list) { + child_dn = pci_device_to_OF_node(tmp); + if (child_dn == dev_dn) + return tmp; + } + return NULL; +} + static struct pci_dev *dlpar_pci_add_bus(struct device_node *dn) { struct pci_controller *hose = dn->phb; @@ -180,21 +194,18 @@ static struct pci_dev *dlpar_pci_add_bus(struct device_node *dn) pci_bus_add_devices(hose->bus); /* Confirm new bridge dev was created */ - dev = rpaphp_find_pci_dev(dn); - if (!dev) { - printk(KERN_ERR "%s: failed to add pci device\n", __FUNCTION__); - return NULL; - } + dev = dlpar_find_new_dev(hose->bus, dn); + if (dev) { + if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) { + printk(KERN_ERR "%s: unexpected header type %d\n", + __FUNCTION__, dev->hdr_type); + return NULL; + } - if (dev->hdr_type != PCI_HEADER_TYPE_BRIDGE) { - printk(KERN_ERR "%s: unexpected header type %d\n", - __FUNCTION__, dev->hdr_type); - return NULL; + if (pci_add_secondary_bus(dn, dev)) + return NULL; } - if (pci_add_secondary_bus(dn, dev)) - return NULL; - return dev; } diff --git a/drivers/pci/hotplug/rpaphp.h b/drivers/pci/hotplug/rpaphp.h index 9f050fde80c2..8ecff0b950e8 100644 --- a/drivers/pci/hotplug/rpaphp.h +++ b/drivers/pci/hotplug/rpaphp.h @@ -93,7 +93,6 @@ extern int num_slots; /* function prototypes */ /* rpaphp_pci.c */ -extern struct pci_dev *rpaphp_find_pci_dev(struct device_node *dn); extern int rpaphp_claim_resource(struct pci_dev *dev, int resource); extern int rpaphp_enable_pci_slot(struct slot *slot); extern int register_pci_slot(struct slot *slot); diff --git a/drivers/pci/hotplug/rpaphp_pci.c b/drivers/pci/hotplug/rpaphp_pci.c index 54fff5fb0094..30a892ca4b37 100644 --- a/drivers/pci/hotplug/rpaphp_pci.c +++ b/drivers/pci/hotplug/rpaphp_pci.c @@ -30,22 +30,7 @@ #include "rpaphp.h" -struct pci_dev *rpaphp_find_pci_dev(struct device_node *dn) -{ - struct pci_dev *dev = NULL; - char bus_id[BUS_ID_SIZE]; - - sprintf(bus_id, "%04x:%02x:%02x.%d", dn->phb->global_number, - dn->busno, PCI_SLOT(dn->devfn), PCI_FUNC(dn->devfn)); - for_each_pci_dev(dev) { - if (!strcmp(pci_name(dev), bus_id)) { - break; - } - } - return dev; -} - -struct pci_bus *find_bus_among_children(struct pci_bus *bus, +static struct pci_bus *find_bus_among_children(struct pci_bus *bus, struct device_node *dn) { struct pci_bus *child = NULL; @@ -64,15 +49,14 @@ struct pci_bus *find_bus_among_children(struct pci_bus *bus, return child; } -struct pci_bus *rpaphp_find_pci_bus(struct device_node *dn) +static struct pci_bus *rpaphp_find_pci_bus(struct device_node *dn) { - BUG_ON(!dn->phb || !dn->phb->bus); + if (!dn->phb || !dn->phb->bus) + return NULL; return find_bus_among_children(dn->phb->bus, dn); } -EXPORT_SYMBOL_GPL(rpaphp_find_pci_dev); - int rpaphp_claim_resource(struct pci_dev *dev, int resource) { struct resource *res = &dev->resource[resource]; @@ -137,9 +121,8 @@ static int rpaphp_get_sensor_state(struct slot *slot, int *state) */ int rpaphp_get_pci_adapter_status(struct slot *slot, int is_init, u8 * value) { + struct pci_bus *bus; int state, rc; - struct device_node *child_dn; - struct pci_dev *child_dev = NULL; *value = NOT_VALID; rc = rpaphp_get_sensor_state(slot, &state); @@ -156,20 +139,11 @@ int rpaphp_get_pci_adapter_status(struct slot *slot, int is_init, u8 * value) /* config/unconfig adapter */ *value = slot->state; } else { - child_dn = slot->dn->child; - if (child_dn) - child_dev = rpaphp_find_pci_dev(child_dn); - - if (child_dev) - *value = CONFIGURED; - else if (!child_dn) - dbg("%s: %s is not valid OFDT node\n", - __FUNCTION__, slot->dn->full_name); - else { - err("%s: can't find pdev of adapter in slot[%s]\n", - __FUNCTION__, slot->dn->full_name); + bus = rpaphp_find_pci_bus(slot->dn); + if (bus && !list_empty(&bus->devices)) + *value = CONFIGURED; + else *value = NOT_CONFIGURED; - } } } exit: @@ -252,24 +226,26 @@ rpaphp_pci_config_slot(struct device_node *dn, struct pci_bus *bus) int num; dbg("Enter %s: dn=%s bus=%s\n", __FUNCTION__, dn->full_name, bus->name); + if (!dn->child) + return NULL; - if (dn->child) { - slotno = PCI_SLOT(dn->child->devfn); + slotno = PCI_SLOT(dn->child->devfn); - /* pci_scan_slot should find all children */ - num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0)); - if (num) { - rpaphp_fixup_new_pci_devices(bus, 1); - pci_bus_add_devices(bus); - } - dev = rpaphp_find_pci_dev(dn->child); - if (!dev) { - err("No new device found\n"); - return NULL; - } + /* pci_scan_slot should find all children */ + num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0)); + if (num) { + rpaphp_fixup_new_pci_devices(bus, 1); + pci_bus_add_devices(bus); + } + if (list_empty(&bus->devices)) { + err("%s: No new device found\n", __FUNCTION__); + return NULL; + } + list_for_each_entry(dev, &bus->devices, bus_list) { if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) rpaphp_pci_config_bridge(dev); } + return dev; } |