8 #ifdef CONFIG_CALGARY_IOMMU
9 static inline void* pci_iommu(struct pci_bus
*bus
)
11 struct pci_sysdata
*sd
= bus
->sysdata
;
15 static inline void set_pci_iommu(struct pci_bus
*bus
, void *val
)
17 struct pci_sysdata
*sd
= bus
->sysdata
;
20 #endif /* CONFIG_CALGARY_IOMMU */
23 extern int (*pci_config_read
)(int seg
, int bus
, int dev
, int fn
, int reg
, int len
, u32
*value
);
24 extern int (*pci_config_write
)(int seg
, int bus
, int dev
, int fn
, int reg
, int len
, u32 value
);
28 extern void pci_iommu_alloc(void);
29 extern int iommu_setup(char *opt
);
31 /* The PCI address space does equal the physical memory
32 * address space. The networking and block device layers use
33 * this boolean for bounce buffer decisions
35 * On AMD64 it mostly equals, but we set it to zero if a hardware
36 * IOMMU (gart) of sotware IOMMU (swiotlb) is available.
38 #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
40 #if defined(CONFIG_IOMMU) || defined(CONFIG_CALGARY_IOMMU)
42 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
44 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \
46 #define pci_unmap_addr(PTR, ADDR_NAME) \
48 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \
49 (((PTR)->ADDR_NAME) = (VAL))
50 #define pci_unmap_len(PTR, LEN_NAME) \
52 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
53 (((PTR)->LEN_NAME) = (VAL))
58 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
59 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
60 #define pci_unmap_addr(PTR, ADDR_NAME) (0)
61 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
62 #define pci_unmap_len(PTR, LEN_NAME) (0)
63 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
67 #endif /* __KERNEL__ */
70 #endif /* __x8664_PCI_H */