iommu/amd: Finish TLB flush in amd_iommu_unmap()
commit ce76353f169a6471542d999baf3d29b121dce9c0 upstream.
The function only sends the flush command to the IOMMU(s),
but does not wait for its completion when it returns. Fix
that.
Fixes: 601367d76b
('x86/amd-iommu: Remove iommu_flush_domain function')
Cc: stable@vger.kernel.org # >= 2.6.33
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Willy Tarreau <w@1wt.eu>
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@ -3391,6 +3391,7 @@ static size_t amd_iommu_unmap(struct iommu_domain *dom, unsigned long iova,
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mutex_unlock(&domain->api_lock);
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domain_flush_tlb_pde(domain);
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domain_flush_complete(domain);
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return unmap_size;
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}
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