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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2024-04-24 15:16:38 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2024-04-26 11:57:45 +0200 |
| commit | 129dab6e1286525fe5baed860d3dfcd9c6b4b327 (patch) | |
| tree | 0285dc6edc11958419b1da414f9b4bfc0ea97a5c /drivers/iommu/intel/iommu.c | |
| parent | a600ccd0a347e8f9c9f35f229e1ccd0dca9374c4 (diff) | |
| download | linux-129dab6e1286525fe5baed860d3dfcd9c6b4b327.tar.gz linux-129dab6e1286525fe5baed860d3dfcd9c6b4b327.tar.bz2 linux-129dab6e1286525fe5baed860d3dfcd9c6b4b327.zip | |
iommu/vt-d: Use cache_tag_flush_range_np() in iotlb_sync_map
The iotlb_sync_map callback is called by the iommu core after non-present
to present mappings are created. The iommu driver uses this callback to
invalidate caches if IOMMU is working in caching mode and second-only
translation is used for the domain. Use cache_tag_flush_range_np() 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/20240416080656.60968-7-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel/iommu.c')
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 22 |
1 files changed, 1 insertions, 21 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index f3926ad7d737..c9ac8a1b635f 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -1501,20 +1501,6 @@ static void iommu_flush_iotlb_psi(struct intel_iommu *iommu, iommu_flush_dev_iotlb(domain, addr, mask); } -/* Notification for newly created mappings */ -static void __mapping_notify_one(struct intel_iommu *iommu, struct dmar_domain *domain, - unsigned long pfn, unsigned int pages) -{ - /* - * It's a non-present to present mapping. Only flush if caching mode - * and second level. - */ - if (cap_caching_mode(iommu->cap) && !domain->use_first_level) - iommu_flush_iotlb_psi(iommu, domain, pfn, pages, 0, 1); - else - iommu_flush_write_buffer(iommu); -} - /* * Flush the relevant caches in nested translation if the domain * also serves as a parent @@ -4544,14 +4530,8 @@ static bool risky_device(struct pci_dev *pdev) static int intel_iommu_iotlb_sync_map(struct iommu_domain *domain, unsigned long iova, size_t size) { - struct dmar_domain *dmar_domain = to_dmar_domain(domain); - unsigned long pages = aligned_nrpages(iova, size); - unsigned long pfn = iova >> VTD_PAGE_SHIFT; - struct iommu_domain_info *info; - unsigned long i; + cache_tag_flush_range_np(to_dmar_domain(domain), iova, iova + size - 1); - xa_for_each(&dmar_domain->iommu_array, i, info) - __mapping_notify_one(info->iommu, dmar_domain, pfn, pages); return 0; } |