1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright IBM Corp. 2020 4 * 5 * Author(s): 6 * Pierre Morel <pmorel@linux.ibm.com> 7 * 8 */ 9 10 int zpci_bus_device_register(struct zpci_dev *zdev, struct pci_ops *ops); 11 void zpci_bus_device_unregister(struct zpci_dev *zdev); 12 int zpci_bus_init(void); 13 14 void zpci_release_device(struct kref *kref); 15 static inline void zpci_zdev_put(struct zpci_dev *zdev) 16 { 17 kref_put(&zdev->kref, zpci_release_device); 18 } 19 20 int zpci_alloc_domain(int domain); 21 void zpci_free_domain(int domain); 22 int zpci_setup_bus_resources(struct zpci_dev *zdev, 23 struct list_head *resources); 24 25 static inline struct zpci_dev *get_zdev_by_bus(struct pci_bus *bus, 26 unsigned int devfn) 27 { 28 struct zpci_bus *zbus = bus->sysdata; 29 30 return (devfn >= ZPCI_FUNCTIONS_PER_BUS) ? NULL : zbus->function[devfn]; 31 } 32 33 #ifdef CONFIG_PCI_IOV 34 static inline void zpci_remove_virtfn(struct pci_dev *pdev, int vfn) 35 { 36 37 pci_lock_rescan_remove(); 38 /* Linux' vfid's start at 0 vfn at 1 */ 39 pci_iov_remove_virtfn(pdev->physfn, vfn - 1); 40 pci_unlock_rescan_remove(); 41 } 42 #else /* CONFIG_PCI_IOV */ 43 static inline void zpci_remove_virtfn(struct pci_dev *pdev, int vfn) {} 44 #endif /* CONFIG_PCI_IOV */ 45