From: Joerg Roedel <jroe...@suse.de> We don't need to do an expensive search for domain-ids anymore, as we keep track of per-iommu domain-ids.
Signed-off-by: Joerg Roedel <jroe...@suse.de> --- drivers/iommu/intel-iommu.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index c46afb6..ae2343c 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4811,7 +4811,7 @@ static size_t intel_iommu_unmap(struct iommu_domain *domain, struct intel_iommu *iommu; unsigned long start_pfn, last_pfn; unsigned int npages; - int iommu_id, num, ndomains, level = 0; + int iommu_id, level = 0; /* Cope with horrid API which requires us to unmap more than the size argument if it happens to be a large-page mapping. */ @@ -4831,17 +4831,8 @@ static size_t intel_iommu_unmap(struct iommu_domain *domain, for_each_domain_iommu(iommu_id, dmar_domain) { iommu = g_iommus[iommu_id]; - /* - * find bit position of dmar_domain - */ - ndomains = cap_ndoms(iommu->cap); - for_each_set_bit(num, iommu->domain_ids, ndomains) { - if (get_iommu_domain(iommu, num) == dmar_domain) - iommu_flush_iotlb_psi(iommu, dmar_domain, - start_pfn, npages, - !freelist, 0); - } - + iommu_flush_iotlb_psi(g_iommus[iommu_id], dmar_domain, + start_pfn, npages, !freelist, 0); } dma_free_pagelist(freelist); -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/