Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

Open Menu /arch/x86/include/asm/xen/pci.h 
 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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
#ifndef _ASM_X86_XEN_PCI_H
#define _ASM_X86_XEN_PCI_H

#if defined(CONFIG_PCI_XEN)
extern int __init pci_xen_init(void);
extern int __init pci_xen_hvm_init(void);
#define pci_xen 1
#else
#define pci_xen 0
#define pci_xen_init (0)
static inline int pci_xen_hvm_init(void)
{
	return -1;
}
#endif
#if defined(CONFIG_XEN_DOM0)
int __init pci_xen_initial_domain(void);
int xen_find_device_domain_owner(struct pci_dev *dev);
int xen_register_device_domain_owner(struct pci_dev *dev, uint16_t domain);
int xen_unregister_device_domain_owner(struct pci_dev *dev);
#else
static inline int __init pci_xen_initial_domain(void)
{
	return -1;
}
static inline int xen_find_device_domain_owner(struct pci_dev *dev)
{
	return -1;
}
static inline int xen_register_device_domain_owner(struct pci_dev *dev,
						   uint16_t domain)
{
	return -1;
}
static inline int xen_unregister_device_domain_owner(struct pci_dev *dev)
{
	return -1;
}
#endif

#if defined(CONFIG_PCI_MSI)
#if defined(CONFIG_PCI_XEN)
/* The drivers/pci/xen-pcifront.c sets this structure to
 * its own functions.
 */
struct xen_pci_frontend_ops {
	int (*enable_msi)(struct pci_dev *dev, int vectors[]);
	void (*disable_msi)(struct pci_dev *dev);
	int (*enable_msix)(struct pci_dev *dev, int vectors[], int nvec);
	void (*disable_msix)(struct pci_dev *dev);
};

extern struct xen_pci_frontend_ops *xen_pci_frontend;

static inline int xen_pci_frontend_enable_msi(struct pci_dev *dev,
					      int vectors[])
{
	if (xen_pci_frontend && xen_pci_frontend->enable_msi)
		return xen_pci_frontend->enable_msi(dev, vectors);
	return -ENOSYS;
}
static inline void xen_pci_frontend_disable_msi(struct pci_dev *dev)
{
	if (xen_pci_frontend && xen_pci_frontend->disable_msi)
			xen_pci_frontend->disable_msi(dev);
}
static inline int xen_pci_frontend_enable_msix(struct pci_dev *dev,
					       int vectors[], int nvec)
{
	if (xen_pci_frontend && xen_pci_frontend->enable_msix)
		return xen_pci_frontend->enable_msix(dev, vectors, nvec);
	return -ENOSYS;
}
static inline void xen_pci_frontend_disable_msix(struct pci_dev *dev)
{
	if (xen_pci_frontend && xen_pci_frontend->disable_msix)
			xen_pci_frontend->disable_msix(dev);
}
#endif /* CONFIG_PCI_XEN */
#endif /* CONFIG_PCI_MSI */

#endif	/* _ASM_X86_XEN_PCI_H */