1 #ifndef _ASM_X86_XEN_PCI_H
2 #define _ASM_X86_XEN_PCI_H
4 #if defined(CONFIG_PCI_XEN)
5 extern int __init pci_xen_init(void);
6 extern int __init pci_xen_hvm_init(void);
10 #define pci_xen_init (0)
11 static inline int pci_xen_hvm_init(void)
16 #if defined(CONFIG_XEN_DOM0)
17 int __init pci_xen_initial_domain(void);
18 int xen_find_device_domain_owner(struct pci_dev *dev);
19 int xen_register_device_domain_owner(struct pci_dev *dev, uint16_t domain);
20 int xen_unregister_device_domain_owner(struct pci_dev *dev);
22 static inline int __init pci_xen_initial_domain(void)
26 static inline int xen_find_device_domain_owner(struct pci_dev *dev)
30 static inline int xen_register_device_domain_owner(struct pci_dev *dev,
35 static inline int xen_unregister_device_domain_owner(struct pci_dev *dev)
41 #if defined(CONFIG_PCI_MSI)
42 #if defined(CONFIG_PCI_XEN)
43 /* The drivers/pci/xen-pcifront.c sets this structure to
46 struct xen_pci_frontend_ops {
47 int (*enable_msi)(struct pci_dev *dev, int vectors[]);
48 void (*disable_msi)(struct pci_dev *dev);
49 int (*enable_msix)(struct pci_dev *dev, int vectors[], int nvec);
50 void (*disable_msix)(struct pci_dev *dev);
53 extern struct xen_pci_frontend_ops *xen_pci_frontend;
55 static inline int xen_pci_frontend_enable_msi(struct pci_dev *dev,
58 if (xen_pci_frontend && xen_pci_frontend->enable_msi)
59 return xen_pci_frontend->enable_msi(dev, vectors);
62 static inline void xen_pci_frontend_disable_msi(struct pci_dev *dev)
64 if (xen_pci_frontend && xen_pci_frontend->disable_msi)
65 xen_pci_frontend->disable_msi(dev);
67 static inline int xen_pci_frontend_enable_msix(struct pci_dev *dev,
68 int vectors[], int nvec)
70 if (xen_pci_frontend && xen_pci_frontend->enable_msix)
71 return xen_pci_frontend->enable_msix(dev, vectors, nvec);
74 static inline void xen_pci_frontend_disable_msix(struct pci_dev *dev)
76 if (xen_pci_frontend && xen_pci_frontend->disable_msix)
77 xen_pci_frontend->disable_msix(dev);
79 #endif /* CONFIG_PCI_XEN */
80 #endif /* CONFIG_PCI_MSI */
82 #endif /* _ASM_X86_XEN_PCI_H */