--- zzzz-none-000/linux-4.4.271/arch/arm64/include/asm/cacheflush.h 2021-06-03 06:22:09.000000000 +0000 +++ dakota-7530ac-750/linux-4.4.271/arch/arm64/include/asm/cacheflush.h 2023-01-11 09:25:41.000000000 +0000 @@ -85,6 +85,12 @@ extern void __dma_map_area(const void *, size_t, int); extern void __dma_unmap_area(const void *, size_t, int); extern void __dma_flush_range(const void *, const void *); +extern void __dma_inv_range(const void *, const void *); +extern void __dma_clean_range(const void *, const void *); + +extern void dmac_flush_range(const void *, const void *); +extern void dmac_inv_range(const void *, const void *); +extern void dmac_clean_range(const void *, const void *); /* * Copy user data from/to a page which is mapped into a different