diff options
Diffstat (limited to 'drivers/iommu/intel/prq.c')
| -rw-r--r-- | drivers/iommu/intel/prq.c | 26 |
1 files changed, 9 insertions, 17 deletions
diff --git a/drivers/iommu/intel/prq.c b/drivers/iommu/intel/prq.c index 621cd26504b3..c2d792db52c3 100644 --- a/drivers/iommu/intel/prq.c +++ b/drivers/iommu/intel/prq.c @@ -63,26 +63,18 @@ void intel_iommu_drain_pasid_prq(struct device *dev, u32 pasid) struct dmar_domain *domain; struct intel_iommu *iommu; struct qi_desc desc[3]; - struct pci_dev *pdev; int head, tail; u16 sid, did; - int qdep; info = dev_iommu_priv_get(dev); - if (WARN_ON(!info || !dev_is_pci(dev))) - return; - if (!info->pri_enabled) return; iommu = info->iommu; domain = info->domain; - pdev = to_pci_dev(dev); sid = PCI_DEVID(info->bus, info->devfn); did = domain ? domain_id_iommu(domain, iommu) : FLPT_DEFAULT_DID; - qdep = pci_ats_queue_depth(pdev); - /* * Check and wait until all pending page requests in the queue are * handled by the prq handling thread. @@ -114,15 +106,15 @@ prq_retry: desc[0].qw0 = QI_IWD_STATUS_DATA(QI_DONE) | QI_IWD_FENCE | QI_IWD_TYPE; - desc[1].qw0 = QI_EIOTLB_PASID(pasid) | - QI_EIOTLB_DID(did) | - QI_EIOTLB_GRAN(QI_GRAN_NONG_PASID) | - QI_EIOTLB_TYPE; - desc[2].qw0 = QI_DEV_EIOTLB_PASID(pasid) | - QI_DEV_EIOTLB_SID(sid) | - QI_DEV_EIOTLB_QDEP(qdep) | - QI_DEIOTLB_TYPE | - QI_DEV_IOTLB_PFSID(info->pfsid); + if (pasid == IOMMU_NO_PASID) { + qi_desc_iotlb(iommu, did, 0, 0, DMA_TLB_DSI_FLUSH, &desc[1]); + qi_desc_dev_iotlb(sid, info->pfsid, info->ats_qdep, 0, + MAX_AGAW_PFN_WIDTH, &desc[2]); + } else { + qi_desc_piotlb(did, pasid, 0, -1, 0, &desc[1]); + qi_desc_dev_iotlb_pasid(sid, info->pfsid, pasid, info->ats_qdep, + 0, MAX_AGAW_PFN_WIDTH, &desc[2]); + } qi_retry: reinit_completion(&iommu->prq_complete); qi_submit_sync(iommu, desc, 3, QI_OPT_WAIT_DRAIN); |