virt-pci.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __UM_VIRT_PCI_H
 3#define __UM_VIRT_PCI_H
 4
 5#include <linux/pci.h>
 6
 7struct um_pci_device {
 8	const struct um_pci_ops *ops;
 9
10	/* for now just standard BARs */
11	u8 resptr[PCI_STD_NUM_BARS];
12
13	int irq;
14};
15
16struct um_pci_ops {
17	unsigned long (*cfgspace_read)(struct um_pci_device *dev,
18				       unsigned int offset, int size);
19	void (*cfgspace_write)(struct um_pci_device *dev, unsigned int offset,
20			       int size, unsigned long val);
21
22	unsigned long (*bar_read)(struct um_pci_device *dev, int bar,
23				  unsigned int offset, int size);
24	void (*bar_write)(struct um_pci_device *dev, int bar,
25			  unsigned int offset, int size, unsigned long val);
26
27	void (*bar_copy_from)(struct um_pci_device *dev, int bar, void *buffer,
28			      unsigned int offset, int size);
29	void (*bar_copy_to)(struct um_pci_device *dev, int bar,
30			    unsigned int offset, const void *buffer, int size);
31	void (*bar_set)(struct um_pci_device *dev, int bar,
32			unsigned int offset, u8 value, int size);
33};
34
35int um_pci_device_register(struct um_pci_device *dev);
36void um_pci_device_unregister(struct um_pci_device *dev);
37
38int um_pci_platform_device_register(struct um_pci_device *dev);
39void um_pci_platform_device_unregister(struct um_pci_device *dev);
40
41#endif /* __UM_VIRT_PCI_H */