Merge branch 'master'

1 files changed, 6 insertions, 261 deletions

diff --git a/drivers/pci/hotplug/rpaphp_pci.c b/drivers/pci/hotplug/rpaphp_pci.c
index 396b54b0c847..6f6cbede5135 100644
--- a/drivers/pci/hotplug/rpaphp_pci.c
+++ b/drivers/pci/hotplug/rpaphp_pci.c
@@ -32,37 +32,7 @@
 #include "../pci.h"             /* for pci_add_new_bus */
 #include "rpaphp.h"
 
-static struct pci_bus *find_bus_among_children(struct pci_bus *bus,
-                                        struct device_node *dn)
-{
-        struct pci_bus *child = NULL;
-        struct list_head *tmp;
-        struct device_node *busdn;
-
-        busdn = pci_bus_to_OF_node(bus);
-        if (busdn == dn)
-                return bus;
-
-        list_for_each(tmp, &bus->children) {
-                child = find_bus_among_children(pci_bus_b(tmp), dn);
-                if (child)
-                        break;
-        }
-        return child;
-}
-
-struct pci_bus *rpaphp_find_pci_bus(struct device_node *dn)
-{
-        struct pci_dn *pdn = dn->data;
-
-        if (!pdn  || !pdn->phb || !pdn->phb->bus)
-                return NULL;
-
-        return find_bus_among_children(pdn->phb->bus, dn);
-}
-EXPORT_SYMBOL_GPL(rpaphp_find_pci_bus);
-
-static int rpaphp_get_sensor_state(struct slot *slot, int *state)
+int rpaphp_get_sensor_state(struct slot *slot, int *state)
 {
         int rc;
         int setlevel;
@@ -120,7 +90,7 @@ int rpaphp_get_pci_adapter_status(struct slot *slot, int is_init, u8 * value)
                         /* config/unconfig adapter */
                         *value = slot->state;
                 } else {
-                        bus = rpaphp_find_pci_bus(slot->dn);
+                        bus = pcibios_find_pci_bus(slot->dn);
                         if (bus && !list_empty(&bus->devices))
                                 *value = CONFIGURED;
                         else
@@ -131,140 +101,6 @@ exit:
         return rc;
 }
 
-/* Must be called before pci_bus_add_devices */
-void rpaphp_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus)
-{
-        struct pci_dev *dev;
-
-        list_for_each_entry(dev, &bus->devices, bus_list) {
-                /*
-                 * Skip already-present devices (which are on the
-                 * global device list.)
-                 */
-                if (list_empty(&dev->global_list)) {
-                        int i;
-                        
-                        /* Need to setup IOMMU tables */
-                        ppc_md.iommu_dev_setup(dev);
-
-                        if(fix_bus)
-                                pcibios_fixup_device_resources(dev, bus);
-                        pci_read_irq_line(dev);
-                        for (i = 0; i < PCI_NUM_RESOURCES; i++) {
-                                struct resource *r = &dev->resource[i];
-
-                                if (r->parent || !r->start || !r->flags)
-                                        continue;
-                                pci_claim_resource(dev, i);
-                        }
-                }
-        }
-}
-
-static void rpaphp_eeh_add_bus_device(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)
-                                rpaphp_eeh_add_bus_device (subbus);
-                }
-        }
-}
-
-static int rpaphp_pci_config_bridge(struct pci_dev *dev)
-{
-        u8 sec_busno;
-        struct pci_bus *child_bus;
-        struct pci_dev *child_dev;
-
-        dbg("Enter %s:  BRIDGE dev=%s\n", __FUNCTION__, pci_name(dev));
-
-        /* get busno of downstream bus */
-        pci_read_config_byte(dev, PCI_SECONDARY_BUS, &sec_busno);
-                
-        /* add to children of PCI bridge dev->bus */
-        child_bus = pci_add_new_bus(dev->bus, dev, sec_busno);
-        if (!child_bus) {
-                err("%s: could not add second bus\n", __FUNCTION__);
-                return -EIO;
-        }
-        sprintf(child_bus->name, "PCI Bus #%02x", child_bus->number);
-        /* do pci_scan_child_bus */
-        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 */
-        rpaphp_fixup_new_pci_devices(child_bus, 0);
-
-        /* Make the discovered devices available */
-        pci_bus_add_devices(child_bus);
-        return 0;
-}
-
-void rpaphp_init_new_devs(struct pci_bus *bus)
-{
-        rpaphp_fixup_new_pci_devices(bus, 0);
-        rpaphp_eeh_add_bus_device(bus);
-}
-EXPORT_SYMBOL_GPL(rpaphp_init_new_devs);
-
-/*****************************************************************************
- rpaphp_pci_config_slot() will  configure all devices under the
- given slot->dn and return the the first pci_dev.
- *****************************************************************************/
-static struct pci_dev *
-rpaphp_pci_config_slot(struct pci_bus *bus)
-{
-        struct device_node *dn = pci_bus_to_OF_node(bus);
-        struct pci_dev *dev = NULL;
-        int slotno;
-        int num;
-
-        dbg("Enter %s: dn=%s bus=%s\n", __FUNCTION__, dn->full_name, bus->name);
-        if (!dn || !dn->child)
-                return NULL;
-
-        if (_machine == PLATFORM_PSERIES_LPAR) {
-                of_scan_bus(dn, bus);
-                if (list_empty(&bus->devices)) {
-                        err("%s: No new device found\n", __FUNCTION__);
-                        return NULL;
-                }
-
-                rpaphp_init_new_devs(bus);
-                pci_bus_add_devices(bus);
-                dev = list_entry(&bus->devices, struct pci_dev, bus_list);
-        } else {
-                slotno = PCI_SLOT(PCI_DN(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);
-                }
-                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);
-
-                        rpaphp_eeh_add_bus_device(bus);
-                }
-        }
-
-        return dev;
-}
-
 static void print_slot_pci_funcs(struct pci_bus *bus)
 {
         struct device_node *dn;
@@ -280,60 +116,6 @@ static void print_slot_pci_funcs(struct pci_bus *bus)
         return;
 }
 
-int rpaphp_config_pci_adapter(struct pci_bus *bus)
-{
-        struct device_node *dn = pci_bus_to_OF_node(bus);
-        struct pci_dev *dev;
-        int rc = -ENODEV;
-
-        dbg("Entry %s: slot[%s]\n", __FUNCTION__, dn->full_name);
-        if (!dn)
-                goto exit;
-
-        eeh_add_device_tree_early(dn);
-        dev = rpaphp_pci_config_slot(bus);
-        if (!dev) {
-                err("%s: can't find any devices.\n", __FUNCTION__);
-                goto exit;
-        }
-        print_slot_pci_funcs(bus);
-        rc = 0;
-exit:
-        dbg("Exit %s:  rc=%d\n", __FUNCTION__, rc);
-        return rc;
-}
-EXPORT_SYMBOL_GPL(rpaphp_config_pci_adapter);
-
-static void rpaphp_eeh_remove_bus_device(struct pci_dev *dev)
-{
-        eeh_remove_device(dev);
-        if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
-                struct pci_bus *bus = dev->subordinate;
-                struct list_head *ln;
-                if (!bus)
-                        return; 
-                for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) {
-                        struct pci_dev *pdev = pci_dev_b(ln);
-                        if (pdev)
-                                rpaphp_eeh_remove_bus_device(pdev);
-                }
-
-        }
-        return;
-}
-
-int rpaphp_unconfig_pci_adapter(struct pci_bus *bus)
-{
-        struct pci_dev *dev, *tmp;
-
-        list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) {
-                rpaphp_eeh_remove_bus_device(dev);
-                pci_remove_bus_device(dev);
-        }
-        return 0;
-}
-EXPORT_SYMBOL_GPL(rpaphp_unconfig_pci_adapter);
-
 static int setup_pci_hotplug_slot_info(struct slot *slot)
 {
         struct hotplug_slot_info *hotplug_slot_info = slot->hotplug_slot->info;
@@ -370,7 +152,7 @@ static int setup_pci_slot(struct slot *slot)
         struct pci_bus *bus;
 
         BUG_ON(!dn);
-        bus = rpaphp_find_pci_bus(dn);
+        bus = pcibios_find_pci_bus(dn);
         if (!bus) {
                 err("%s: no pci_bus for dn %s\n", __FUNCTION__, dn->full_name);
                 goto exit_rc;
@@ -395,10 +177,7 @@ static int setup_pci_slot(struct slot *slot)
                 if (slot->hotplug_slot->info->adapter_status == NOT_CONFIGURED) {
                         dbg("%s CONFIGURING pci adapter in slot[%s]\n",  
                                 __FUNCTION__, slot->name);
-                        if (rpaphp_config_pci_adapter(slot->bus)) {
-                                err("%s: CONFIG pci adapter failed\n", __FUNCTION__);
-                                goto exit_rc;           
-                        }
+                        pcibios_add_pci_devices(slot->bus);
 
                 } else if (slot->hotplug_slot->info->adapter_status != CONFIGURED) {
                         err("%s: slot[%s]'s adapter_status is NOT_VALID.\n",
@@ -420,7 +199,7 @@ exit_rc:
         return -EINVAL;
 }
 
-int register_pci_slot(struct slot *slot)
+int rpaphp_register_pci_slot(struct slot *slot)
 {
         int rc = -EINVAL;
 
@@ -428,42 +207,8 @@ int register_pci_slot(struct slot *slot)
                 goto exit_rc;
         if (setup_pci_slot(slot))
                 goto exit_rc;
-        rc = register_slot(slot);
+        rc = rpaphp_register_slot(slot);
 exit_rc:
         return rc;
 }
 
-int rpaphp_enable_pci_slot(struct slot *slot)
-{
-        int retval = 0, state;
-
-        retval = rpaphp_get_sensor_state(slot, &state);
-        if (retval)
-                goto exit;
-        dbg("%s: sensor state[%d]\n", __FUNCTION__, state);
-        /* if slot is not empty, enable the adapter */
-        if (state == PRESENT) {
-                dbg("%s : slot[%s] is occupied.\n", __FUNCTION__, slot->name);
-                retval = rpaphp_config_pci_adapter(slot->bus);
-                if (!retval) {
-                        slot->state = CONFIGURED;
-                        info("%s: devices in slot[%s] configured\n",
-                                        __FUNCTION__, slot->name);
-                } else {
-                        slot->state = NOT_CONFIGURED;
-                        dbg("%s: no pci_dev struct for adapter in slot[%s]\n",
-                            __FUNCTION__, slot->name);
-                }
-        } else if (state == EMPTY) {
-                dbg("%s : slot[%s] is empty\n", __FUNCTION__, slot->name);
-                slot->state = EMPTY;
-        } else {
-                err("%s: slot[%s] is in invalid state\n", __FUNCTION__,
-                    slot->name);
-                slot->state = NOT_VALID;
-                retval = -EINVAL;
-        }
-exit:
-        dbg("%s - Exit: rc[%d]\n", __FUNCTION__, retval);
-        return retval;
-}