diff options
Diffstat (limited to 'arch/s390/pci/pci_bus.h')
| -rw-r--r-- | arch/s390/pci/pci_bus.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/s390/pci/pci_bus.h b/arch/s390/pci/pci_bus.h new file mode 100644 index 000000000..af9f0ac79 --- /dev/null +++ b/arch/s390/pci/pci_bus.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright IBM Corp. 2020 + * + * Author(s): + * Pierre Morel <pmorel@linux.ibm.com> + * + */ + +int zpci_bus_device_register(struct zpci_dev *zdev, struct pci_ops *ops); +void zpci_bus_device_unregister(struct zpci_dev *zdev); + +int zpci_bus_scan_bus(struct zpci_bus *zbus); +void zpci_bus_scan_busses(void); + +int zpci_bus_scan_device(struct zpci_dev *zdev); +void zpci_bus_remove_device(struct zpci_dev *zdev, bool set_error); + +void zpci_release_device(struct kref *kref); +static inline void zpci_zdev_put(struct zpci_dev *zdev) +{ + if (zdev) + kref_put(&zdev->kref, zpci_release_device); +} + +static inline void zpci_zdev_get(struct zpci_dev *zdev) +{ + kref_get(&zdev->kref); +} + +int zpci_alloc_domain(int domain); +void zpci_free_domain(int domain); +int zpci_setup_bus_resources(struct zpci_dev *zdev); + +static inline struct zpci_dev *zdev_from_bus(struct pci_bus *bus, + unsigned int devfn) +{ + struct zpci_bus *zbus = bus->sysdata; + + return (devfn >= ZPCI_FUNCTIONS_PER_BUS) ? NULL : zbus->function[devfn]; +} + |