diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/s390/pci/pci.c | 50 |
1 files changed, 17 insertions, 33 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 48de2be7b46a..e6f15b5d8b7d 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -627,17 +627,6 @@ void zpci_free_device(struct zpci_dev *zdev) kfree(zdev); } -static void zpci_scan_devices(void) -{ - struct zpci_dev *zdev; - - mutex_lock(&zpci_list_lock); - list_for_each_entry(zdev, &zpci_list, entry) - if (zdev->state == ZPCI_FN_STATE_CONFIGURED) - zpci_scan_device(zdev); - mutex_unlock(&zpci_list_lock); -} - /* * Too late for any s390 specific setup, since interrupts must be set up * already which requires DMA setup too and the pci scan will access the @@ -846,6 +835,7 @@ int pcibios_add_device(struct pci_dev *pdev) { struct zpci_dev *zdev = get_zdev(pdev); + zdev->pdev = pdev; zpci_debug_init_device(zdev); zpci_fmb_enable_device(zdev); zpci_map_resources(zdev); @@ -853,7 +843,7 @@ int pcibios_add_device(struct pci_dev *pdev) return 0; } -static int zpci_create_device_bus(struct zpci_dev *zdev) +static int zpci_scan_bus(struct zpci_dev *zdev) { struct resource *res; LIST_HEAD(resources); @@ -890,8 +880,8 @@ static int zpci_create_device_bus(struct zpci_dev *zdev) pci_add_resource(&resources, res); } - zdev->bus = pci_create_root_bus(NULL, ZPCI_BUS_NR, &pci_root_ops, - zdev, &resources); + zdev->bus = pci_scan_root_bus(NULL, ZPCI_BUS_NR, &pci_root_ops, + zdev, &resources); if (!zdev->bus) return -EIO; @@ -955,9 +945,16 @@ int zpci_create_device(struct zpci_dev *zdev) if (rc) goto out; - rc = zpci_create_device_bus(zdev); + if (zdev->state == ZPCI_FN_STATE_CONFIGURED) { + rc = zpci_enable_device(zdev); + if (rc) + goto out_free; + + zdev->state = ZPCI_FN_STATE_ONLINE; + } + rc = zpci_scan_bus(zdev); if (rc) - goto out_bus; + goto out_disable; mutex_lock(&zpci_list_lock); list_add_tail(&zdev->entry, &zpci_list); @@ -965,21 +962,12 @@ int zpci_create_device(struct zpci_dev *zdev) hotplug_ops->create_slot(zdev); mutex_unlock(&zpci_list_lock); - if (zdev->state == ZPCI_FN_STATE_STANDBY) - return 0; - - rc = zpci_enable_device(zdev); - if (rc) - goto out_start; return 0; -out_start: - mutex_lock(&zpci_list_lock); - list_del(&zdev->entry); - if (hotplug_ops) - hotplug_ops->remove_slot(zdev); - mutex_unlock(&zpci_list_lock); -out_bus: +out_disable: + if (zdev->state == ZPCI_FN_STATE_ONLINE) + zpci_disable_device(zdev); +out_free: zpci_free_domain(zdev); out: return rc; @@ -1006,10 +994,7 @@ int zpci_scan_device(struct zpci_dev *zdev) pci_bus_add_devices(zdev->bus); - /* now that pdev was added to the bus mark it as used */ - zdev->state = ZPCI_FN_STATE_ONLINE; return 0; - out: zpci_dma_exit_device(zdev); clp_disable_fh(zdev); @@ -1123,7 +1108,6 @@ static int __init pci_base_init(void) if (rc) goto out_find; - zpci_scan_devices(); return 0; out_find: |