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authorJakub Kicinski <kuba@kernel.org>2025-07-10 10:08:47 -0700
committerJakub Kicinski <kuba@kernel.org>2025-07-10 10:10:49 -0700
commit3321e97eab71df7d632b35276da9f8503e6e040f (patch)
tree6a4ec5e7556d99a0ff25f4035f078d8e0186f359 /drivers/iommu/intel/iommu.c
parentMerge branch 'net-dsa-rzn1_a5psw-add-compile_test' (diff)
parentMerge tag 'net-6.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/net... (diff)
downloadlinux-3321e97eab71df7d632b35276da9f8503e6e040f.tar.gz
linux-3321e97eab71df7d632b35276da9f8503e6e040f.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.16-rc6). No conflicts. Adjacent changes: Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml 0a12c435a1d6 ("dt-bindings: net: sun8i-emac: Add A100 EMAC compatible") b3603c0466a8 ("dt-bindings: net: sun8i-emac: Rename A523 EMAC0 to GMAC0") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/iommu/intel/iommu.c')
-rw-r--r--drivers/iommu/intel/iommu.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 7aa3932251b2..148b944143b8 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -3780,8 +3780,17 @@ static void intel_iommu_probe_finalize(struct device *dev)
!pci_enable_pasid(to_pci_dev(dev), info->pasid_supported & ~1))
info->pasid_enabled = 1;
- if (sm_supported(iommu) && !dev_is_real_dma_subdevice(dev))
+ if (sm_supported(iommu) && !dev_is_real_dma_subdevice(dev)) {
iommu_enable_pci_ats(info);
+ /* Assign a DEVTLB cache tag to the default domain. */
+ if (info->ats_enabled && info->domain) {
+ u16 did = domain_id_iommu(info->domain, iommu);
+
+ if (cache_tag_assign(info->domain, did, dev,
+ IOMMU_NO_PASID, CACHE_TAG_DEVTLB))
+ iommu_disable_pci_ats(info);
+ }
+ }
iommu_enable_pci_pri(info);
}