diff options
| -rw-r--r-- | include/asm-powerpc/pci.h | 33 | ||||
| -rw-r--r-- | include/asm-ppc/pci.h | 23 |
2 files changed, 45 insertions, 11 deletions
diff --git a/include/asm-powerpc/pci.h b/include/asm-powerpc/pci.h index 16f13319c769..ac656ee6bb19 100644 --- a/include/asm-powerpc/pci.h +++ b/include/asm-powerpc/pci.h @@ -143,8 +143,13 @@ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ #define HAVE_PCI_MMAP 1 -#ifdef CONFIG_PPC64 -/* pci_unmap_{single,page} is not a nop, thus... */ +#if defined(CONFIG_PPC64) || defined(CONFIG_NOT_COHERENT_CACHE) +/* + * For 64-bit kernels, pci_unmap_{single,page} is not a nop. + * For 32-bit non-coherent kernels, pci_dma_sync_single_for_cpu() and + * so on are not nops. + * and thus... + */ #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ dma_addr_t ADDR_NAME; #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ @@ -158,6 +163,20 @@ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ (((PTR)->LEN_NAME) = (VAL)) +#else /* 32-bit && coherent */ + +/* pci_unmap_{page,single} is a nop so... */ +#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 /* CONFIG_PPC64 || CONFIG_NOT_COHERENT_CACHE */ + +#ifdef CONFIG_PPC64 + /* The PCI address space does not equal the physical memory address * space (we have an IOMMU). The IDE and SCSI device layers use * this boolean for bounce buffer decisions. @@ -172,16 +191,8 @@ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, */ #define PCI_DMA_BUS_IS_PHYS (1) -/* pci_unmap_{page,single} is a nop so... */ -#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 /* CONFIG_PPC64 */ - + extern void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, struct resource *res); diff --git a/include/asm-ppc/pci.h b/include/asm-ppc/pci.h index 11ffaaa5da16..9d162028dab9 100644 --- a/include/asm-ppc/pci.h +++ b/include/asm-ppc/pci.h @@ -61,6 +61,27 @@ extern unsigned long pci_bus_to_phys(unsigned int ba, int busnr); */ #define PCI_DMA_BUS_IS_PHYS (1) +#ifdef CONFIG_NOT_COHERENT_CACHE +/* + * pci_unmap_{page,single} are NOPs but pci_dma_sync_single_for_cpu() + * and so on are not, so... + */ + +#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 /* coherent */ + /* pci_unmap_{page,single} is a nop so... */ #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) @@ -69,6 +90,8 @@ extern unsigned long pci_bus_to_phys(unsigned int ba, int busnr); #define pci_unmap_len(PTR, LEN_NAME) (0) #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) +#endif /* CONFIG_NOT_COHERENT_CACHE */ + #ifdef CONFIG_PCI static inline void pci_dma_burst_advice(struct pci_dev *pdev, enum pci_dma_burst_strategy *strat, |
