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 void __init xen_setup_pirqs(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 void __init xen_setup_pirqs(void)
25 static inline int xen_find_device_domain_owner(struct pci_dev *dev)
29 static inline int xen_register_device_domain_owner(struct pci_dev *dev,
34 static inline int xen_unregister_device_domain_owner(struct pci_dev *dev)
40 #if defined(CONFIG_PCI_MSI)
41 #if defined(CONFIG_PCI_XEN)
42 /* The drivers/pci/xen-pcifront.c sets this structure to
45 struct xen_pci_frontend_ops {
46 int (*enable_msi)(struct pci_dev *dev, int vectors[]);
47 void (*disable_msi)(struct pci_dev *dev);
48 int (*enable_msix)(struct pci_dev *dev, int vectors[], int nvec);
49 void (*disable_msix)(struct pci_dev *dev);
52 extern struct xen_pci_frontend_ops *xen_pci_frontend;
54 static inline int xen_pci_frontend_enable_msi(struct pci_dev *dev,
57 if (xen_pci_frontend && xen_pci_frontend->enable_msi)
58 return xen_pci_frontend->enable_msi(dev, vectors);
61 static inline void xen_pci_frontend_disable_msi(struct pci_dev *dev)
63 if (xen_pci_frontend && xen_pci_frontend->disable_msi)
64 xen_pci_frontend->disable_msi(dev);
66 static inline int xen_pci_frontend_enable_msix(struct pci_dev *dev,
67 int vectors[], int nvec)
69 if (xen_pci_frontend && xen_pci_frontend->enable_msix)
70 return xen_pci_frontend->enable_msix(dev, vectors, nvec);
73 static inline void xen_pci_frontend_disable_msix(struct pci_dev *dev)
75 if (xen_pci_frontend && xen_pci_frontend->disable_msix)
76 xen_pci_frontend->disable_msix(dev);
78 #endif /* CONFIG_PCI_XEN */
79 #endif /* CONFIG_PCI_MSI */
81 #endif /* _ASM_X86_XEN_PCI_H */