@@ -21,6 +21,7 @@ struct dev_archdata {
#ifdef CONFIG_IOMMU_API
void *iommu; /* private IOMMU data */
#endif
+ bool dma_coherent;
};
struct pdev_archdata {
@@ -54,11 +54,17 @@ static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
static inline int set_arch_dma_coherent_ops(struct device *dev)
{
+ dev->archdata.dma_coherent = true;
set_dma_ops(dev, &coherent_swiotlb_dma_ops);
return 0;
}
#define set_arch_dma_coherent_ops set_arch_dma_coherent_ops
+static inline bool is_device_dma_coherent(struct device *dev)
+{
+ return dev->archdata.dma_coherent;
+}
+
#include <asm-generic/dma-mapping-common.h>
static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)