| #ifndef __x8664_PCI_H |
| #define __x8664_PCI_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); |
| |
| |
| |
| extern void dma32_reserve_bootmem(void); |
| extern void pci_iommu_alloc(void); |
| |
| /* The PCI address space does equal the physical memory |
| * address space. The networking and block device layers use |
| * this boolean for bounce buffer decisions |
| * |
| * On AMD64 it mostly equals, but we set it to zero if a hardware |
| * IOMMU (gart) of sotware IOMMU (swiotlb) is available. |
| */ |
| #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys) |
| |
| #if defined(CONFIG_GART_IOMMU) || defined(CONFIG_CALGARY_IOMMU) |
| |
| #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ |
| dma_addr_t ADDR_NAME; |
| #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ |
| __u32 LEN_NAME; |
| #define pci_unmap_addr(PTR, ADDR_NAME) \ |
| ((PTR)->ADDR_NAME) |
| #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ |
| (((PTR)->ADDR_NAME) = (VAL)) |
| #define pci_unmap_len(PTR, LEN_NAME) \ |
| ((PTR)->LEN_NAME) |
| #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ |
| (((PTR)->LEN_NAME) = (VAL)) |
| |
| #else |
| /* No IOMMU */ |
| |
| #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) |
| #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) |
| #define pci_unmap_addr(PTR, ADDR_NAME) (0) |
| #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) |
| #define pci_unmap_len(PTR, LEN_NAME) (0) |
| #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) |
| |
| #endif |
| |
| #endif /* __KERNEL__ */ |
| |
| |
| #endif /* __x8664_PCI_H */ |