summaryrefslogtreecommitdiff
path: root/arch/arm64/include/asm/dma-mapping.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm64/include/asm/dma-mapping.h')
-rw-r--r--arch/arm64/include/asm/dma-mapping.h11
1 files changed, 2 insertions, 9 deletions
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 9ce3e680ae1c..6932bb57dba0 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -28,8 +28,6 @@
#define DMA_ERROR_CODE (~(dma_addr_t)0)
extern struct dma_map_ops *dma_ops;
-extern struct dma_map_ops coherent_swiotlb_dma_ops;
-extern struct dma_map_ops noncoherent_swiotlb_dma_ops;
static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
{
@@ -47,23 +45,18 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
return __generic_dma_ops(dev);
}
-static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
-{
- dev->archdata.dma_ops = ops;
-}
-
static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size,
struct iommu_ops *iommu, bool coherent)
{
dev->archdata.dma_coherent = coherent;
- if (coherent)
- set_dma_ops(dev, &coherent_swiotlb_dma_ops);
}
#define arch_setup_dma_ops arch_setup_dma_ops
/* do not use this function in a driver */
static inline bool is_device_dma_coherent(struct device *dev)
{
+ if (!dev)
+ return false;
return dev->archdata.dma_coherent;
}