projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1965aae3 PA |
1 | #ifndef _ASM_X86_PCI_64_H |
| 2 | #define _ASM_X86_PCI_64_H | |
| 1da177e4 | 3 | |
| 1da177e4 LT |
4 | #ifdef __KERNEL__ |
| 5 | ||
| 08f1c192 | 6 | #ifdef CONFIG_CALGARY_IOMMU |
| 3cb47d79 | 7 | static inline void *pci_iommu(struct pci_bus *bus) |
| 08f1c192 MBY |
8 | { |
| 9 | struct pci_sysdata *sd = bus->sysdata; | |
| 10 | return sd->iommu; | |
| 11 | } | |
| 12 | ||
| 13 | static inline void set_pci_iommu(struct pci_bus *bus, void *val) | |
| 14 | { | |
| 15 | struct pci_sysdata *sd = bus->sysdata; | |
| 16 | sd->iommu = val; | |
| 17 | } | |
| 18 | #endif /* CONFIG_CALGARY_IOMMU */ | |
| 19 | ||
| 3cb47d79 JP |
20 | extern int (*pci_config_read)(int seg, int bus, int dev, int fn, |
| 21 | int reg, int len, u32 *value); | |
| 22 | extern int (*pci_config_write)(int seg, int bus, int dev, int fn, | |
| 23 | int reg, int len, u32 value); | |
| 1da177e4 | 24 | |
| 752bea4a | 25 | extern void dma32_reserve_bootmem(void); |
| 0dc243ae | 26 | extern void pci_iommu_alloc(void); |
| 1da177e4 | 27 | |
| 1da177e4 LT |
28 | /* The PCI address space does equal the physical memory |
| 29 | * address space. The networking and block device layers use | |
| 30 | * this boolean for bounce buffer decisions | |
| 31 | * | |
| 17a941d8 MBY |
32 | * On AMD64 it mostly equals, but we set it to zero if a hardware |
| 33 | * IOMMU (gart) of sotware IOMMU (swiotlb) is available. | |
| 1da177e4 | 34 | */ |
| 17a941d8 MBY |
35 | #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys) |
| 36 | ||
| 966396d3 | 37 | #if defined(CONFIG_GART_IOMMU) || defined(CONFIG_CALGARY_IOMMU) |
| 1da177e4 | 38 | |
| 1da177e4 LT |
39 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ |
| 40 | dma_addr_t ADDR_NAME; | |
| 41 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ | |
| 42 | __u32 LEN_NAME; | |
| 43 | #define pci_unmap_addr(PTR, ADDR_NAME) \ | |
| 44 | ((PTR)->ADDR_NAME) | |
| 45 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ | |
| 46 | (((PTR)->ADDR_NAME) = (VAL)) | |
| 47 | #define pci_unmap_len(PTR, LEN_NAME) \ | |
| 48 | ((PTR)->LEN_NAME) | |
| 49 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ | |
| 50 | (((PTR)->LEN_NAME) = (VAL)) | |
| 51 | ||
| 52 | #else | |
| 53 | /* No IOMMU */ | |
| 54 | ||
| 1da177e4 LT |
55 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) |
| 56 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) | |
| 57 | #define pci_unmap_addr(PTR, ADDR_NAME) (0) | |
| 58 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) | |
| 59 | #define pci_unmap_len(PTR, LEN_NAME) (0) | |
| 60 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) | |
| 61 | ||
| 62 | #endif | |
| 63 | ||
| 1da177e4 LT |
64 | #endif /* __KERNEL__ */ |
| 65 | ||
| 1965aae3 | 66 | #endif /* _ASM_X86_PCI_64_H */ |