summaryrefslogtreecommitdiffstats
path: root/arch/arm/include/asm/dma-mapping.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/include/asm/dma-mapping.h')
-rw-r--r--arch/arm/include/asm/dma-mapping.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 256ee1c9f51a..69ce0727edb5 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -128,6 +128,14 @@ static inline int dma_supported(struct device *dev, u64 mask)
static inline int dma_set_mask(struct device *dev, u64 dma_mask)
{
+#ifdef CONFIG_DMABOUNCE
+ if (dev->archdata.dmabounce) {
+ if (dma_mask >= ISA_DMA_THRESHOLD)
+ return 0;
+ else
+ return -EIO;
+ }
+#endif
if (!dev->dma_mask || !dma_supported(dev, dma_mask))
return -EIO;