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intel-iommu: Defer the iotlb flush and iova free for intel_unmap_sg() too.

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I see no reason why we did this _only_ in intel_unmap_page().

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
David Woodhouse 2009-07-14 01:55:11 +01:00
parent 3d39cecc48
commit acea0018a2
1 changed files with 12 additions and 5 deletions
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17
drivers/pci/intel-iommu.c
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@ -2815,11 +2815,18 @@ static void intel_unmap_sg(struct device *hwdev, struct scatterlist *sglist,
/* free page tables */ /* free page tables */
dma_pte_free_pagetable(domain, start_pfn, last_pfn); dma_pte_free_pagetable(domain, start_pfn, last_pfn);
iommu_flush_iotlb_psi(iommu, domain->id, start_pfn, if (intel_iommu_strict) {
(last_pfn - start_pfn + 1)); iommu_flush_iotlb_psi(iommu, domain->id, start_pfn,
last_pfn - start_pfn + 1);
/* free iova */ /* free iova */
__free_iova(&domain->iovad, iova); __free_iova(&domain->iovad, iova);
} else {
add_unmap(domain, iova);
/*
* queue up the release of the unmap to save the 1/6th of the
* cpu used up by the iotlb flush operation...
*/
}
} }
static int intel_nontranslate_map_sg(struct device *hddev, static int intel_nontranslate_map_sg(struct device *hddev,