From: Kai-Heng Feng kai.heng.feng@canonical.com
commit 45beb31d3afb651bb5c41897e46bd4fa9980c51c upstream.
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 5e89cd303e3a ("PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken") addresses, and indeed the same ATS quirk can workaround the issue.
See-also: 5e89cd303e3a ("PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken") See-also: d28ca864c493 ("PCI: Mark AMD Stoney Radeon R7 GPU ATS as broken") See-also: 9b44b0b09dec ("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: Kai-Heng Feng kai.heng.feng@canonical.com Signed-off-by: Bjorn Helgaas bhelgaas@google.com Acked-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/pci/quirks.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5068,7 +5068,8 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SE */ static void quirk_amd_harvest_no_ats(struct pci_dev *pdev) { - if (pdev->device == 0x7340 && pdev->revision != 0xc5) + if ((pdev->device == 0x7312 && pdev->revision != 0x00) || + (pdev->device == 0x7340 && pdev->revision != 0xc5)) return;
pci_info(pdev, "disabling ATS\n"); @@ -5079,6 +5080,8 @@ static void quirk_amd_harvest_no_ats(str DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_amd_harvest_no_ats); /* AMD Iceland dGPU */ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats); +/* AMD Navi10 dGPU */ +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7312, quirk_amd_harvest_no_ats); /* AMD Navi14 dGPU */ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7340, quirk_amd_harvest_no_ats); #endif /* CONFIG_PCI_ATS */