iommu/vt-d: Use cache_tag_flush_all() in flush_iotlb_all

The flush_iotlb_all callback is called by the iommu core to flush
all caches for the affected domain. Use cache_tag_flush_all() in
this callback.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20240416080656.60968-5-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>

diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 473df7cd16721a262ee43de8375d3687578c4582..a268e2a51f4de40c0780d260c8e05c224a47c9ac 100644 (file)
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -1557,25 +1557,7 @@ static void parent_domain_flush(struct dmar_domain *domain,
 
 static void intel_flush_iotlb_all(struct iommu_domain *domain)
 {
-       struct dmar_domain *dmar_domain = to_dmar_domain(domain);
-       struct iommu_domain_info *info;
-       unsigned long idx;
-
-       xa_for_each(&dmar_domain->iommu_array, idx, info) {
-               struct intel_iommu *iommu = info->iommu;
-               u16 did = domain_id_iommu(dmar_domain, iommu);
-
-               if (dmar_domain->use_first_level)
-                       domain_flush_pasid_iotlb(iommu, dmar_domain, 0, -1, 0);
-               else
-                       iommu->flush.flush_iotlb(iommu, did, 0, 0,
-                                                DMA_TLB_DSI_FLUSH);
-
-               iommu_flush_dev_iotlb(dmar_domain, 0, MAX_AGAW_PFN_WIDTH);
-       }
-
-       if (dmar_domain->nested_parent)
-               parent_domain_flush(dmar_domain, 0, -1, 0);
+       cache_tag_flush_all(to_dmar_domain(domain));
 }
 
 static void iommu_disable_protect_mem_regions(struct intel_iommu *iommu)