summaryrefslogtreecommitdiffstats
path: root/arch/s390/pci/pci_bus.h
blob: 89be3c354b7bcadfdead28b6f0d817d0d9eb8d3c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
/* 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_init(void);

void zpci_release_device(struct kref *kref);
static inline void zpci_zdev_put(struct zpci_dev *zdev)
{
	kref_put(&zdev->kref, zpci_release_device);
}

int zpci_alloc_domain(int domain);
void zpci_free_domain(int domain);
int zpci_setup_bus_resources(struct zpci_dev *zdev,
			     struct list_head *resources);

static inline struct zpci_dev *get_zdev_by_bus(struct pci_bus *bus,
					       unsigned int devfn)
{
	struct zpci_bus *zbus = bus->sysdata;

	return (devfn >= ZPCI_FUNCTIONS_PER_BUS) ? NULL : zbus->function[devfn];
}