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| author | Joel Stanley <joel@jms.id.au> | 2016-02-02 13:23:36 +1100 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2016-02-02 13:23:42 +1100 |
| commit | f3f4aeb9ea8954c0da3cf0d12693f9a57f1f4ac7 (patch) | |
| tree | 3663ab29736373c565d88e941162d37311cc3c75 /drivers/iommu/intel-iommu.c | |
| parent | 2a3f5f14fdf2e8fb680af168fa642ef8a9218ffb (diff) | |
| parent | 849a2d3d9be31368559e6852cf64d749e6903818 (diff) | |
| download | talos-obmc-linux-openbmc-20160202-1.tar.gz talos-obmc-linux-openbmc-20160202-1.zip | |
Merge tag 'v4.3.5' into dev-4.3openbmc-20160202-1
This is the 4.3.5 stable release
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'drivers/iommu/intel-iommu.c')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index d65cf42399e8..dfc64662b386 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4194,14 +4194,17 @@ int dmar_find_matched_atsr_unit(struct pci_dev *dev) dev = pci_physfn(dev); for (bus = dev->bus; bus; bus = bus->parent) { bridge = bus->self; - if (!bridge || !pci_is_pcie(bridge) || + /* If it's an integrated device, allow ATS */ + if (!bridge) + return 1; + /* Connected via non-PCIe: no ATS */ + if (!pci_is_pcie(bridge) || pci_pcie_type(bridge) == PCI_EXP_TYPE_PCI_BRIDGE) return 0; + /* If we found the root port, look it up in the ATSR */ if (pci_pcie_type(bridge) == PCI_EXP_TYPE_ROOT_PORT) break; } - if (!bridge) - return 0; rcu_read_lock(); list_for_each_entry_rcu(atsru, &dmar_atsr_units, list) { |
