diff options
| author | Raymond Pang <RaymondPang-oc@zhaoxin.com> | 2020-03-27 17:11:48 +0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2020-03-28 16:57:52 -0500 |
| commit | 299bd044a6f332b4a6c8f708575c27cad70a35c1 (patch) | |
| tree | 9bd275d66972e5f0e75ca80955bc8d77a9099145 /drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | |
| parent | 0325837c51cb7c9a5bd3e354ac0c0cda0667d50e (diff) | |
PCI: Add ACS quirk for Zhaoxin Root/Downstream Ports
Many Zhaoxin Root Ports and Switch Downstream Ports do provide ACS-like
capability but have no ACS Capability Structure. Peer-to-Peer transactions
could be blocked between these ports, so add quirk so devices behind them
could be assigned to different IOMMU group.
Link: https://lore.kernel.org/r/20200327091148.5190-4-RaymondPang-oc@zhaoxin.com
Signed-off-by: Raymond Pang <RaymondPang-oc@zhaoxin.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c')
0 files changed, 0 insertions, 0 deletions