shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-05 02:21:52 +09:00
Code Issues Packages Projects Releases Wiki Activity

AMD IOMMU: fix detection of NP capable IOMMUs

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

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel
2008-10-30 17:43:57 +01:00
parent 1e19b16a30
commit ae9b940364
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/x86/kernel/amd_iommu.c
View File

@@ -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);
}
/****************************************************************************