diff options
Diffstat (limited to 'arch/alpha/kernel/pci_iommu.c')
| -rw-r--r-- | arch/alpha/kernel/pci_iommu.c | 32 |
1 files changed, 5 insertions, 27 deletions
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index 28c84e55feb..6b07f89a72c 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -207,6 +207,10 @@ iommu_arena_free(struct pci_iommu_arena *arena, long ofs, long n) p[i] = 0; } +/* True if the machine supports DAC addressing, and DEV can + make use of it given MASK. */ +static int pci_dac_dma_supported(struct pci_dev *hwdev, u64 mask); + /* Map a single buffer of the indicated size for PCI DMA in streaming mode. The 32-bit PCI bus mastering address to use is returned. Once the device is given the dma address, the device owns this memory @@ -897,7 +901,7 @@ iommu_unbind(struct pci_iommu_arena *arena, long pg_start, long pg_count) /* True if the machine supports DAC addressing, and DEV can make use of it given MASK. */ -int +static int pci_dac_dma_supported(struct pci_dev *dev, u64 mask) { dma64_addr_t dac_offset = alpha_mv.pci_dac_offset; @@ -917,32 +921,6 @@ pci_dac_dma_supported(struct pci_dev *dev, u64 mask) return ok; } -EXPORT_SYMBOL(pci_dac_dma_supported); - -dma64_addr_t -pci_dac_page_to_dma(struct pci_dev *pdev, struct page *page, - unsigned long offset, int direction) -{ - return (alpha_mv.pci_dac_offset - + __pa(page_address(page)) - + (dma64_addr_t) offset); -} -EXPORT_SYMBOL(pci_dac_page_to_dma); - -struct page * -pci_dac_dma_to_page(struct pci_dev *pdev, dma64_addr_t dma_addr) -{ - unsigned long paddr = (dma_addr & PAGE_MASK) - alpha_mv.pci_dac_offset; - return virt_to_page(__va(paddr)); -} -EXPORT_SYMBOL(pci_dac_dma_to_page); - -unsigned long -pci_dac_dma_to_offset(struct pci_dev *pdev, dma64_addr_t dma_addr) -{ - return (dma_addr & ~PAGE_MASK); -} -EXPORT_SYMBOL(pci_dac_dma_to_offset); /* Helper for generic DMA-mapping functions. */ |