iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken

Browse Source 
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>
This commit is contained in:
Kai-Heng Feng 2020-07-28 18:45:53 +08:00 committed by Greg Kroah-Hartman
parent ae86233204
commit d7caf80700
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/pci/quirks.c
View File

@ -5208,7 +5208,8 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0422, quirk_no_ext_tags);
*/
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");
@ -5219,6 +5220,8 @@ static void quirk_amd_harvest_no_ats(struct pci_dev *pdev)
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 */