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Commit ae9b9403 authored by Joerg Roedel's avatar Joerg Roedel
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AMD IOMMU: fix detection of NP capable IOMMUs 



This patch changes the code to use IOMMU_CAP_NPCACHE as a shift and not
as a mask.

Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent 1e19b16a

arch/x86/kernel/amd_iommu.c

+1 −1
Original line number Diff line number Diff line
@@ -50,7 +50,7 @@ static int dma_ops_unity_map(struct dma_ops_domain *dma_dom, 
/* returns !0 if the IOMMU is caching non-present entries in its TLB */

static int iommu_has_npcache(struct amd_iommu *iommu)

{

	return iommu->cap & IOMMU_CAP_NPCACHE;

	return iommu->cap & (1UL << IOMMU_CAP_NPCACHE);

}



/****************************************************************************