mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-19 10:14:23 +08:00
cc0f89c4a4
Cleanup code. Cosmetic change to make the code look easier to read. Reviewed-by: Ian Campbell <Ian.Campbell@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
#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)
|
|
void __init xen_setup_pirqs(void);
|
|
#else
|
|
static inline void __init xen_setup_pirqs(void)
|
|
{
|
|
}
|
|
#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 -ENODEV;
|
|
}
|
|
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 -ENODEV;
|
|
}
|
|
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 */
|