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22 lines
694 B
Diff
22 lines
694 B
Diff
--- a/arch/arm/include/asm/dma-mapping.h
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+++ b/arch/arm/include/asm/dma-mapping.h
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@@ -350,7 +350,8 @@ static inline dma_addr_t dma_map_page(st
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static inline void dma_unmap_single(struct device *dev, dma_addr_t handle,
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size_t size, enum dma_data_direction dir)
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{
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- /* nothing to do */
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+ if (dir != DMA_TO_DEVICE)
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+ dma_cache_maint(dma_to_virt(dev, handle), size, DMA_FROM_DEVICE);
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}
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#endif /* CONFIG_DMABOUNCE */
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@@ -398,6 +399,8 @@ static inline void dma_sync_single_range
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{
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BUG_ON(!valid_dma_direction(dir));
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+ if (dir != DMA_TO_DEVICE)
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+ dma_cache_maint(dma_to_virt(dev, handle) + offset, size, DMA_FROM_DEVICE);
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dmabounce_sync_for_cpu(dev, handle, offset, size, dir);
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}
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