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authorChristoph Hellwig <hch@lst.de>2017-05-22 12:38:27 +0300
committerChristoph Hellwig <hch@lst.de>2017-06-28 16:54:46 +0300
commit5860acc1a905b05c14e9ed9e22c20aad1a72554a (patch)
treec7de41ef603b7f179b06241ca055966e65dcc995 /drivers/iommu
parent418a7a7e4f05f36d6e4ab5b8548ea71f0b602140 (diff)
downloadlinux-5860acc1a905b05c14e9ed9e22c20aad1a72554a.tar.xz
x86: remove arch specific dma_supported implementation
And instead wire it up as method for all the dma_map_ops instances. Note that this also means the arch specific check will be fully instead of partially applied in the AMD iommu driver. Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/amd_iommu.c2
-rw-r--r--drivers/iommu/intel-iommu.c3
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index d41280e869de..521fdf2d41bc 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2731,6 +2731,8 @@ free_mem:
*/
static int amd_iommu_dma_supported(struct device *dev, u64 mask)
{
+ if (!x86_dma_supported(dev, mask))
+ return 0;
return check_device(dev);
}
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index fc2765ccdb57..53cc0a393f04 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -3981,6 +3981,9 @@ struct dma_map_ops intel_dma_ops = {
.map_page = intel_map_page,
.unmap_page = intel_unmap_page,
.mapping_error = intel_mapping_error,
+#ifdef CONFIG_X86
+ .dma_supported = x86_dma_supported,
+#endif
};
static inline int iommu_domain_cache_init(void)