PCI: Mark AMD Navi14 GPU ATS as broken

commit e8946a53e2a698c148b3b3ed732f43c7747fbeb6 upstream

Observed unexpected GPU hang during runpm stress test on 0x7341 rev 0x00.
Further debugging shows broken ATS is related.

Disable ATS on this part.  Similar issues on other devices:

  a2da5d8cc0b0 ("PCI: Mark AMD Raven iGPU ATS as broken in some platforms")
  45beb31d3afb ("PCI: Mark AMD Navi10 GPU rev 0x00 ATS as broken")
  5e89cd303e3a ("PCI: Mark AMD Navi14 GPU rev 0xc5 ATS as broken")

Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20210602021255.939090-1-evan.quan@amd.com
Signed-off-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
Cc: stable@vger.kernel.org
[sudip: adjust context]
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 3fe9a6f61f85c0664a72fbd4de58a7c66470ccfb..6c1b936a94fac172d00a73d8ae6cb3ae4daf28b7 100644 (file)
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -5312,7 +5312,8 @@ 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 == 0x7312 && pdev->revision != 0x00) ||
-           (pdev->device == 0x7340 && pdev->revision != 0xc5))
+           (pdev->device == 0x7340 && pdev->revision != 0xc5) ||
+           (pdev->device == 0x7341 && pdev->revision != 0x00))
                return;
 
        pci_info(pdev, "disabling ATS\n");
@@ -5327,6 +5328,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x6900, quirk_amd_harvest_no_ats);
 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);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x7341, quirk_amd_harvest_no_ats);
 #endif /* CONFIG_PCI_ATS */
 
 /* Freescale PCIe doesn't support MSI in RC mode */