dma_pfn 243 arch/alpha/mm/init.c unsigned long dma_pfn, high_pfn; dma_pfn 245 arch/alpha/mm/init.c dma_pfn = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT; dma_pfn 248 arch/alpha/mm/init.c if (dma_pfn >= high_pfn) dma_pfn 251 arch/alpha/mm/init.c zones_size[ZONE_DMA] = dma_pfn; dma_pfn 252 arch/alpha/mm/init.c zones_size[ZONE_NORMAL] = high_pfn - dma_pfn; dma_pfn 153 drivers/iommu/intel-iommu.c static inline unsigned long dma_to_mm_pfn(unsigned long dma_pfn) dma_pfn 155 drivers/iommu/intel-iommu.c return dma_pfn >> (PAGE_SHIFT - VTD_PAGE_SHIFT);