| 1 | --- a/arch/arm/include/asm/dma-mapping.h |
| 2 | +++ b/arch/arm/include/asm/dma-mapping.h |
| 3 | @@ -350,7 +350,8 @@ static inline dma_addr_t dma_map_page(st |
| 4 | static inline void dma_unmap_single(struct device *dev, dma_addr_t handle, |
| 5 | size_t size, enum dma_data_direction dir) |
| 6 | { |
| 7 | - /* nothing to do */ |
| 8 | + if (dir != DMA_TO_DEVICE) |
| 9 | + dma_cache_maint(dma_to_virt(dev, handle), size, DMA_FROM_DEVICE); |
| 10 | } |
| 11 | #endif /* CONFIG_DMABOUNCE */ |
| 12 | |
| 13 | @@ -398,6 +399,8 @@ static inline void dma_sync_single_range |
| 14 | { |
| 15 | BUG_ON(!valid_dma_direction(dir)); |
| 16 | |
| 17 | + if (dir != DMA_TO_DEVICE) |
| 18 | + dma_cache_maint(dma_to_virt(dev, handle) + offset, size, DMA_FROM_DEVICE); |
| 19 | dmabounce_sync_for_cpu(dev, handle, offset, size, dir); |
| 20 | } |
| 21 | |
| 22 | |
