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authorChristoph Hellwig <hch@lst.de>2017-05-22 11:20:18 +0200
committerChristoph Hellwig <hch@lst.de>2017-06-28 06:54:45 -0700
commit418a7a7e4f05f36d6e4ab5b8548ea71f0b602140 (patch)
tree5f09b1c6475386d085bd210f11440aab57d8b70e /arch/arm/mm
parent19ad53e498745416a77c0377cbb4ee771eedd35b (diff)
downloadlinux-418a7a7e4f05f36d6e4ab5b8548ea71f0b602140.tar.bz2
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/mm')
-rw-r--r--arch/arm/mm/dma-mapping.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 8f2c5a8a98f0..b9677ada421f 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -199,6 +199,7 @@ const struct dma_map_ops arm_dma_ops = {
.sync_sg_for_cpu = arm_dma_sync_sg_for_cpu,
.sync_sg_for_device = arm_dma_sync_sg_for_device,
.mapping_error = arm_dma_mapping_error,
+ .dma_supported = arm_dma_supported,
};
EXPORT_SYMBOL(arm_dma_ops);
@@ -218,6 +219,7 @@ const struct dma_map_ops arm_coherent_dma_ops = {
.map_page = arm_coherent_dma_map_page,
.map_sg = arm_dma_map_sg,
.mapping_error = arm_dma_mapping_error,
+ .dma_supported = arm_dma_supported,
};
EXPORT_SYMBOL(arm_coherent_dma_ops);
@@ -1184,11 +1186,10 @@ void arm_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
* during bus mastering, then you would pass 0x00ffffff as the mask
* to this function.
*/
-int dma_supported(struct device *dev, u64 mask)
+int arm_dma_supported(struct device *dev, u64 mask)
{
return __dma_supported(dev, mask, false);
}
-EXPORT_SYMBOL(dma_supported);
#define PREALLOC_DMA_DEBUG_ENTRIES 4096
@@ -2149,6 +2150,7 @@ const struct dma_map_ops iommu_ops = {
.unmap_resource = arm_iommu_unmap_resource,
.mapping_error = arm_dma_mapping_error,
+ .dma_supported = arm_dma_supported,
};
const struct dma_map_ops iommu_coherent_ops = {
@@ -2167,6 +2169,7 @@ const struct dma_map_ops iommu_coherent_ops = {
.unmap_resource = arm_iommu_unmap_resource,
.mapping_error = arm_dma_mapping_error,
+ .dma_supported = arm_dma_supported,
};
/**