/* SPDX-License-Identifier: GPL-2.0 */ #ifndef DMA_H #define DMA_H #include <asm/glue-cache.h> #ifndef MULTI_CACHE #define dmac_map_area __glue(_CACHE,_dma_map_area) #define dmac_unmap_area __glue(_CACHE,_dma_unmap_area) /* * These are private to the dma-mapping API. Do not use directly. * Their sole purpose is to ensure that data held in the cache * is visible to DMA, or data written by DMA to system memory is * visible to the CPU. */ extern void dmac_map_area(const void *, size_t, int); extern void dmac_unmap_area(const void *, size_t, int); #else /* * These are private to the dma-mapping API. Do not use directly. * Their sole purpose is to ensure that data held in the cache * is visible to DMA, or data written by DMA to system memory is * visible to the CPU. */ #define dmac_map_area cpu_cache.dma_map_area #define dmac_unmap_area cpu_cache.dma_unmap_area #endif #endif