diff options
Diffstat (limited to 'drivers/iommu/intel/svm.c')
| -rw-r--r-- | drivers/iommu/intel/svm.c | 41 |
1 files changed, 10 insertions, 31 deletions
diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c index bdf3584ca0af..c1bed89b1026 100644 --- a/drivers/iommu/intel/svm.c +++ b/drivers/iommu/intel/svm.c @@ -22,7 +22,6 @@ #include "iommu.h" #include "pasid.h" #include "perf.h" -#include "../iommu-sva.h" #include "trace.h" static irqreturn_t prq_event_thread(int irq, void *d); @@ -555,16 +554,12 @@ static int prq_to_iommu_prot(struct page_req_dsc *req) return prot; } -static int intel_svm_prq_report(struct intel_iommu *iommu, struct device *dev, - struct page_req_dsc *desc) +static void intel_svm_prq_report(struct intel_iommu *iommu, struct device *dev, + struct page_req_dsc *desc) { - struct iommu_fault_event event; - - if (!dev || !dev_is_pci(dev)) - return -ENODEV; + struct iopf_fault event = { }; /* Fill in event data for device specific processing */ - memset(&event, 0, sizeof(struct iommu_fault_event)); event.fault.type = IOMMU_FAULT_PAGE_REQ; event.fault.prm.addr = (u64)desc->addr << VTD_PAGE_SHIFT; event.fault.prm.pasid = desc->pasid; @@ -596,7 +591,7 @@ static int intel_svm_prq_report(struct intel_iommu *iommu, struct device *dev, event.fault.prm.private_data[0] = ktime_to_ns(ktime_get()); } - return iommu_report_device_fault(dev, &event); + iommu_report_device_fault(dev, &event); } static void handle_bad_prq_event(struct intel_iommu *iommu, @@ -700,12 +695,10 @@ bad_req: goto bad_req; } - if (intel_svm_prq_report(iommu, dev, req)) - handle_bad_prq_event(iommu, req, QI_RESP_INVALID); - else - trace_prq_report(iommu, dev, req->qw_0, req->qw_1, - req->priv_data[0], req->priv_data[1], - iommu->prq_seq_number++); + intel_svm_prq_report(iommu, dev, req); + trace_prq_report(iommu, dev, req->qw_0, req->qw_1, + req->priv_data[0], req->priv_data[1], + iommu->prq_seq_number++); mutex_unlock(&iommu->iopf_lock); prq_advance: head = (head + sizeof(*req)) & PRQ_RING_MASK; @@ -736,9 +729,8 @@ prq_advance: return IRQ_RETVAL(handled); } -int intel_svm_page_response(struct device *dev, - struct iommu_fault_event *evt, - struct iommu_page_response *msg) +void intel_svm_page_response(struct device *dev, struct iopf_fault *evt, + struct iommu_page_response *msg) { struct device_domain_info *info = dev_iommu_priv_get(dev); struct intel_iommu *iommu = info->iommu; @@ -747,7 +739,6 @@ int intel_svm_page_response(struct device *dev, bool private_present; bool pasid_present; bool last_page; - int ret = 0; u16 sid; prm = &evt->fault.prm; @@ -756,16 +747,6 @@ int intel_svm_page_response(struct device *dev, private_present = prm->flags & IOMMU_FAULT_PAGE_REQUEST_PRIV_DATA; last_page = prm->flags & IOMMU_FAULT_PAGE_REQUEST_LAST_PAGE; - if (!pasid_present) { - ret = -EINVAL; - goto out; - } - - if (prm->pasid == 0 || prm->pasid >= PASID_MAX) { - ret = -EINVAL; - goto out; - } - /* * Per VT-d spec. v3.0 ch7.7, system software must respond * with page group response if private data is present (PDP) @@ -794,8 +775,6 @@ int intel_svm_page_response(struct device *dev, qi_submit_sync(iommu, &desc, 1, 0); } -out: - return ret; } static void intel_svm_domain_free(struct iommu_domain *domain) |