summaryrefslogtreecommitdiff
path: root/arch/arm/include
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2017-05-22 12:20:18 +0300
committerChristoph Hellwig <hch@lst.de>2017-06-28 16:54:45 +0300
commit418a7a7e4f05f36d6e4ab5b8548ea71f0b602140 (patch)
tree5f09b1c6475386d085bd210f11440aab57d8b70e /arch/arm/include
parent19ad53e498745416a77c0377cbb4ee771eedd35b (diff)
downloadlinux-418a7a7e4f05f36d6e4ab5b8548ea71f0b602140.tar.xz
arm: remove arch specific dma_supported implementation
And instead wire it up as method for all the dma_map_ops instances. Note that the code seems a little fishy for dmabounce and iommu, but for now I'd like to preserve the existing behavior 1:1. Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/dma-iommu.h2
-rw-r--r--arch/arm/include/asm/dma-mapping.h3
2 files changed, 2 insertions, 3 deletions
diff --git a/arch/arm/include/asm/dma-iommu.h b/arch/arm/include/asm/dma-iommu.h
index 389a26a10ea3..c090ec675eac 100644
--- a/arch/arm/include/asm/dma-iommu.h
+++ b/arch/arm/include/asm/dma-iommu.h
@@ -35,5 +35,7 @@ int arm_iommu_attach_device(struct device *dev,
struct dma_iommu_mapping *mapping);
void arm_iommu_detach_device(struct device *dev);
+int arm_dma_supported(struct device *dev, u64 mask);
+
#endif /* __KERNEL__ */
#endif
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 52a8fd5a8edb..8dabcfdf4505 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -20,9 +20,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
return &arm_dma_ops;
}
-#define HAVE_ARCH_DMA_SUPPORTED 1
-extern int dma_supported(struct device *dev, u64 mask);
-
#ifdef __arch_page_to_dma
#error Please update to __arch_pfn_to_dma
#endif