diff options
| author | Ingo Molnar <mingo@kernel.org> | 2017-11-08 10:17:15 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-11-08 10:17:15 +0100 |
| commit | 8a103df440afea30c91ebd42e61dc644e647f4bd (patch) | |
| tree | 2cfa99e9c6e1e138e1404bce4294e46cb0034cce /drivers/iommu/amd_iommu.c | |
| parent | sched/sysctl: Fix attributes of some extern declarations (diff) | |
| parent | drivers/ide-cd: Handle missing driver data during status check gracefully (diff) | |
| download | linux-8a103df440afea30c91ebd42e61dc644e647f4bd.tar.xz linux-8a103df440afea30c91ebd42e61dc644e647f4bd.zip | |
Merge branch 'linus' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/iommu/amd_iommu.c')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 51f8215877f5..8e8874d23717 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2773,14 +2773,16 @@ int __init amd_iommu_init_api(void) int __init amd_iommu_init_dma_ops(void) { - swiotlb = iommu_pass_through ? 1 : 0; + swiotlb = (iommu_pass_through || sme_me_mask) ? 1 : 0; iommu_detected = 1; /* * In case we don't initialize SWIOTLB (actually the common case - * when AMD IOMMU is enabled), make sure there are global - * dma_ops set as a fall-back for devices not handled by this - * driver (for example non-PCI devices). + * when AMD IOMMU is enabled and SME is not active), make sure there + * are global dma_ops set as a fall-back for devices not handled by + * this driver (for example non-PCI devices). When SME is active, + * make sure that swiotlb variable remains set so the global dma_ops + * continue to be SWIOTLB. */ if (!swiotlb) dma_ops = &nommu_dma_ops; @@ -3046,6 +3048,7 @@ static size_t amd_iommu_unmap(struct iommu_domain *dom, unsigned long iova, mutex_unlock(&domain->api_lock); domain_flush_tlb_pde(domain); + domain_flush_complete(domain); return unmap_size; } |