f1cc7ec4c8
io-pgtable-fast was implemented to achieve better performance for IOMMU map/un-map. Add DMA API support that goes through io-pgtable-fast for 32 bit targets. Change-Id:I3d0560a4331f6b7b87c70d0885df11d12cb1d6ec Signed-off-by: Charan Teja Reddy <charante@codeaurora.org>
29 lines
760 B
C
29 lines
760 B
C
#ifndef DMA_H
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#define DMA_H
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#include <asm/glue-cache.h>
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#ifndef MULTI_CACHE
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/*
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* These are private to the dma-mapping API. Do not use directly.
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* Their sole purpose is to ensure that data held in the cache
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* is visible to DMA, or data written by DMA to system memory is
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* visible to the CPU.
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*/
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extern void dmac_map_area(const void *, size_t, int);
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extern void dmac_unmap_area(const void *, size_t, int);
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#else
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/*
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* These are private to the dma-mapping API. Do not use directly.
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* Their sole purpose is to ensure that data held in the cache
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* is visible to DMA, or data written by DMA to system memory is
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* visible to the CPU.
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*/
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#define dmac_map_area cpu_cache.dma_map_area
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#define dmac_unmap_area cpu_cache.dma_unmap_area
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#endif
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#endif
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