Commit a600ccd0 authored by Lu Baolu's avatar Lu Baolu Committed by Joerg Roedel
Browse files

iommu/vt-d: Use cache_tag_flush_range() in tlb_sync 



The tlb_sync callback is called by the iommu core to flush a range of
caches for the affected domain. Use cache_tag_flush_range() in this
callback.

Signed-off-by: default avatarLu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20240416080656.60968-6-baolu.lu@linux.intel.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 4e589a53

drivers/iommu/intel/iommu.c

+2 −19
Original line number Diff line number Diff line
@@ -4104,25 +4104,8 @@ static size_t intel_iommu_unmap_pages(struct iommu_domain *domain, 
static void intel_iommu_tlb_sync(struct iommu_domain *domain,

				 struct iommu_iotlb_gather *gather)

{

	struct dmar_domain *dmar_domain = to_dmar_domain(domain);

	unsigned long iova_pfn = IOVA_PFN(gather->start);

	size_t size = gather->end - gather->start;

	struct iommu_domain_info *info;

	unsigned long start_pfn;

	unsigned long nrpages;

	unsigned long i;



	nrpages = aligned_nrpages(gather->start, size);

	start_pfn = mm_to_dma_pfn_start(iova_pfn);



	xa_for_each(&dmar_domain->iommu_array, i, info)

		iommu_flush_iotlb_psi(info->iommu, dmar_domain,

				      start_pfn, nrpages,

				      list_empty(&gather->freelist), 0);



	if (dmar_domain->nested_parent)

		parent_domain_flush(dmar_domain, start_pfn, nrpages,

				    list_empty(&gather->freelist));

	cache_tag_flush_range(to_dmar_domain(domain), gather->start,

			      gather->end, list_empty(&gather->freelist));

	put_pages_list(&gather->freelist);

}