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Commit 45beb31d authored by Kai-Heng Feng's avatar Kai-Heng Feng Committed by Bjorn Helgaas
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PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken

We are seeing AMD Radeon Pro W5700 doesn't work when IOMMU is enabled:

  iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT device=63:00.0 address=0x42b5b01a0]
  iommu ivhd0: AMD-Vi: Event logged [IOTLB_INV_TIMEOUT device=63:00.0 address=0x42b5b01c0]

The error also makes graphics driver fail to probe the device.

It appears to be the same issue as commit 5e89cd30 ("PCI: Mark AMD
Navi14 GPU rev 0xc5 ATS as broken") addresses, and indeed the same ATS
quirk can workaround the issue.

See-also: 5e89cd30 ("PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken")
See-also: d28ca864 ("PCI: Mark AMD Stoney Radeon R7 GPU ATS as broken")
See-also: 9b44b0b0 ("PCI: Mark AMD Stoney GPU ATS as broken")
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=208725
Link: https://lore.kernel.org/r/20200728104554.28927-1-kai.heng.feng@canonical.com


Signed-off-by: default avatarKai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 3f9a7a13
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