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intel-iommu: Use coherent DMA mask when requested 

The __intel_map_single function is not honoring the passed in DMA mask.
This results in not using the coherent DMA mask when called from
intel_alloc_coherent().

Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Chris Wright <chrisw@sous-sol.org>
Reviewed-by: Mike Habeck <habeck@sgi.com>
Cc: stable@kernel.org
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
hifive-unleashed-5.1
Mike Travis 2011-05-28 13:15:05 -05:00 committed by David Woodhouse
parent 1c9fc3d11b
commit c681d0ba12
1 changed files with 1 additions and 2 deletions
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3
drivers/pci/intel-iommu.c
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@ -2732,8 +2732,7 @@ static dma_addr_t __intel_map_single(struct device *hwdev, phys_addr_t paddr,
iommu = domain_get_iommu(domain);
size = aligned_nrpages(paddr, size);
iova = intel_alloc_iova(hwdev, domain, dma_to_mm_pfn(size),
pdev->dma_mask);
iova = intel_alloc_iova(hwdev, domain, dma_to_mm_pfn(size), dma_mask);
if (!iova)
goto error;