Merge branch 'intel/vt-d' into next

* intel/vt-d:
  iommu/vt-d: Fix UAF on sva unbind with pending IOPFs
  iommu/vt-d: Make iotlb_sync_map a static property of dmar_domain
  iommu/vt-d: Deduplicate cache_tag_flush_all by reusing flush_range
  iommu/vt-d: Fix missing PASID in dev TLB flush with cache_tag_flush_all
  iommu/vt-d: Split paging_domain_compatible()
  iommu/vt-d: Split intel_iommu_enforce_cache_coherency()
  iommu/vt-d: Create unique domain ops for each stage
  iommu/vt-d: Split intel_iommu_domain_alloc_paging_flags()
  iommu/vt-d: Do not wipe out the page table NID when devices detach
  iommu/vt-d: Fold domain_exit() into intel_iommu_domain_free()
  iommu/vt-d: Lift the __pa to domain_setup_first_level/intel_svm_set_dev_pasid()
  iommu/vt-d: Optimize iotlb_sync_map for non-caching/non-RWBF modes
  iommu/vt-d: Remove the CONFIG_X86 wrapping from iommu init hook

Author: willdeacon

drivers/iommu/intel/cache.c

@@ -371,7 +371,7 @@ static void cache_tag_flush_iotlb(struct dmar_domain *domain, struct cache_tag *
 	struct intel_iommu *iommu = tag->iommu;
 	u64 type = DMA_TLB_PSI_FLUSH;
 
-	if (domain->use_first_level) {
+	if (intel_domain_is_fs_paging(domain)) {
 		qi_batch_add_piotlb(iommu, tag->domain_id, tag->pasid, addr,
 				    pages, ih, domain->qi_batch);
 		return;
@@ -423,22 +423,6 @@ static void cache_tag_flush_devtlb_psi(struct dmar_domain *domain, struct cache_
 					     domain->qi_batch);
 }
 
-static void cache_tag_flush_devtlb_all(struct dmar_domain *domain, struct cache_tag *tag)
-{
-	struct intel_iommu *iommu = tag->iommu;
-	struct device_domain_info *info;
-	u16 sid;
-
-	info = dev_iommu_priv_get(tag->dev);
-	sid = PCI_DEVID(info->bus, info->devfn);
-
-	qi_batch_add_dev_iotlb(iommu, sid, info->pfsid, info->ats_qdep, 0,
-			       MAX_AGAW_PFN_WIDTH, domain->qi_batch);
-	if (info->dtlb_extra_inval)
-		qi_batch_add_dev_iotlb(iommu, sid, info->pfsid, info->ats_qdep, 0,
-				       MAX_AGAW_PFN_WIDTH, domain->qi_batch);
-}
-
 /*
  * Invalidates a range of IOVA from @start (inclusive) to @end (inclusive)
  * when the memory mappings in the target domain have been modified.
@@ -451,7 +435,13 @@ void cache_tag_flush_range(struct dmar_domain *domain, unsigned long start,
 	struct cache_tag *tag;
 	unsigned long flags;
 
-	addr = calculate_psi_aligned_address(start, end, &pages, &mask);
+	if (start == 0 && end == ULONG_MAX) {
+		addr = 0;
+		pages = -1;
+		mask = MAX_AGAW_PFN_WIDTH;
+	} else {
+		addr = calculate_psi_aligned_address(start, end, &pages, &mask);
+	}
 
 	spin_lock_irqsave(&domain->cache_lock, flags);
 	list_for_each_entry(tag, &domain->cache_tags, node) {
@@ -492,31 +482,7 @@ void cache_tag_flush_range(struct dmar_domain *domain, unsigned long start,
  */
 void cache_tag_flush_all(struct dmar_domain *domain)
 {
-	struct intel_iommu *iommu = NULL;
-	struct cache_tag *tag;
-	unsigned long flags;
-
-	spin_lock_irqsave(&domain->cache_lock, flags);
-	list_for_each_entry(tag, &domain->cache_tags, node) {
-		if (iommu && iommu != tag->iommu)
-			qi_batch_flush_descs(iommu, domain->qi_batch);
-		iommu = tag->iommu;
-
-		switch (tag->type) {
-		case CACHE_TAG_IOTLB:
-		case CACHE_TAG_NESTING_IOTLB:
-			cache_tag_flush_iotlb(domain, tag, 0, -1, 0, 0);
-			break;
-		case CACHE_TAG_DEVTLB:
-		case CACHE_TAG_NESTING_DEVTLB:
-			cache_tag_flush_devtlb_all(domain, tag);
-			break;
-		}
-
-		trace_cache_tag_flush_all(tag);
-	}
-	qi_batch_flush_descs(iommu, domain->qi_batch);
-	spin_unlock_irqrestore(&domain->cache_lock, flags);
+	cache_tag_flush_range(domain, 0, ULONG_MAX, 0);
 }
 
 /*
@@ -546,7 +512,8 @@ void cache_tag_flush_range_np(struct dmar_domain *domain, unsigned long start,
 			qi_batch_flush_descs(iommu, domain->qi_batch);
 		iommu = tag->iommu;
 
-		if (!cap_caching_mode(iommu->cap) || domain->use_first_level) {
+		if (!cap_caching_mode(iommu->cap) ||
+		    intel_domain_is_fs_paging(domain)) {
 			iommu_flush_write_buffer(iommu);
 			continue;
 		}

drivers/iommu/intel/dmar.c

@@ -935,14 +935,11 @@ void __init detect_intel_iommu(void)
 		pci_request_acs();
 	}
 
-#ifdef CONFIG_X86
 	if (!ret) {
 		x86_init.iommu.iommu_init = intel_iommu_init;
 		x86_platform.iommu_shutdown = intel_iommu_shutdown;
 	}
 
-#endif
-
 	if (dmar_tbl) {
 		acpi_put_table(dmar_tbl);
 		dmar_tbl = NULL;