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| author | Nadav Amit <nadav.amit@gmail.com> | 2010-04-01 13:24:35 +0300 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-04-09 15:38:47 +0100 |
| commit | 8bdd77dd4ef99292f3d705c4c389c12f55641133 (patch) | |
| tree | 8e61b8852de3ce09a9b0f352a2c9aeddc6a453b9 /drivers/pci | |
| parent | a45946abb8991e17c39326854ed1314d20742ca6 (diff) | |
| download | linux-8bdd77dd4ef99292f3d705c4c389c12f55641133.tar.gz linux-8bdd77dd4ef99292f3d705c4c389c12f55641133.tar.bz2 linux-8bdd77dd4ef99292f3d705c4c389c12f55641133.zip | |
intel-iommu mistakenly uses offset_pfn when caching mode is enabled
intel_map_sg used offset_pfn which was set to zero when invalidating the IOTLB.
intel_map_sg now uses size variable for this matter.
Signed-off-by: Nadav Amit <nadav.amit@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/intel-iommu.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index a0ac7197ffdd..341da41cde8b 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -2860,7 +2860,6 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne struct dmar_domain *domain; size_t size = 0; int prot = 0; - size_t offset_pfn = 0; struct iova *iova = NULL; int ret; struct scatterlist *sg; @@ -2914,7 +2913,7 @@ static int intel_map_sg(struct device *hwdev, struct scatterlist *sglist, int ne /* it's a non-present to present mapping. Only flush if caching mode */ if (cap_caching_mode(iommu->cap)) - iommu_flush_iotlb_psi(iommu, 0, start_vpfn, offset_pfn); + iommu_flush_iotlb_psi(iommu, 0, start_vpfn, size); else iommu_flush_write_buffer(iommu); |