|  | #ifndef _ASM_X86_PCI_64_H | 
|  | #define _ASM_X86_PCI_64_H | 
|  |  | 
|  | #ifdef __KERNEL__ | 
|  |  | 
|  | #ifdef CONFIG_CALGARY_IOMMU | 
|  | static inline void *pci_iommu(struct pci_bus *bus) | 
|  | { | 
|  | struct pci_sysdata *sd = bus->sysdata; | 
|  | return sd->iommu; | 
|  | } | 
|  |  | 
|  | static inline void set_pci_iommu(struct pci_bus *bus, void *val) | 
|  | { | 
|  | struct pci_sysdata *sd = bus->sysdata; | 
|  | sd->iommu = val; | 
|  | } | 
|  | #endif /* CONFIG_CALGARY_IOMMU */ | 
|  |  | 
|  | extern int (*pci_config_read)(int seg, int bus, int dev, int fn, | 
|  | int reg, int len, u32 *value); | 
|  | extern int (*pci_config_write)(int seg, int bus, int dev, int fn, | 
|  | int reg, int len, u32 value); | 
|  |  | 
|  | #endif /* __KERNEL__ */ | 
|  |  | 
|  | #endif /* _ASM_X86_PCI_64_H */ |