__dma_unmap_area  116 arch/arm64/include/asm/cacheflush.h extern void __dma_unmap_area(const void *, size_t, int);
__dma_unmap_area   25 arch/arm64/mm/dma-mapping.c 	__dma_unmap_area(phys_to_virt(paddr), size, dir);