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Merge branch 'io_remap_pfn_range' of git://www.jni.nu/cris
[firefly-linux-kernel-4.4.55.git]
/
include
/
linux
/
dma-mapping.h
diff --git
a/include/linux/dma-mapping.h
b/include/linux/dma-mapping.h
index 89b7e1a605b8113ac90e7f4bd51f73d595988ade..e0670a51205691b10fd0974a9bf42e49620c50ee 100644
(file)
--- a/
include/linux/dma-mapping.h
+++ b/
include/linux/dma-mapping.h
@@
-142,6
+142,14
@@
static inline int dma_set_seg_boundary(struct device *dev, unsigned long mask)
return -EIO;
}
+static inline int dma_get_cache_alignment(void)
+{
+#ifdef ARCH_DMA_MINALIGN
+ return ARCH_DMA_MINALIGN;
+#endif
+ return 1;
+}
+
/* flags for the coherent memory api */
#define DMA_MEMORY_MAP 0x01
#define DMA_MEMORY_IO 0x02