Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Lu Baolu <> | Subject | [PATCH v2 05/12] iommu/vt-d: Use cache_tag_flush_range() in tlb_sync | Date | Wed, 10 Apr 2024 10:08:37 +0800 |
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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: Lu Baolu <baolu.lu@linux.intel.com> --- drivers/iommu/intel/iommu.c | 21 ++------------------- 1 file changed, 2 insertions(+), 19 deletions(-)
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 2af3e6f54af0..8ec69f09935d 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -4101,25 +4101,8 @@ 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); } -- 2.34.1
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