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9d86b89c59
The implementation of dma_map_single() and dma_unmap_single() is exactly the same for all the architectures that support them. Factor them out to <linux/dma-mapping.h>, and make all drivers to include <linux/dma-mapping.h> instead of <asm/dma-mapping.h>. If we need to differentiate them for some architectures, we can move the generic definitions to <asm-generic/dma-mapping.h>. Add some comments to the helpers. The concept is quite similar to the DMA-API of Linux kernel. Drivers are agnostic about what is going on behind the scene. Just call dma_map_single() before the DMA, and dma_unmap_single() after it. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> |
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| .. | ||
| cdns3-ti.c | ||
| core.c | ||
| core.h | ||
| debug.h | ||
| drd.c | ||
| drd.h | ||
| ep0.c | ||
| gadget-export.h | ||
| gadget.c | ||
| gadget.h | ||
| host-export.h | ||
| host.c | ||
| Kconfig | ||
| Makefile | ||
| trace.c | ||
| trace.h | ||