diff options
Diffstat (limited to 'pci-mark-amd-stoney-gpu-ats-as-broken.patch')
| -rw-r--r-- | pci-mark-amd-stoney-gpu-ats-as-broken.patch | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/pci-mark-amd-stoney-gpu-ats-as-broken.patch b/pci-mark-amd-stoney-gpu-ats-as-broken.patch deleted file mode 100644 index 167c40223..000000000 --- a/pci-mark-amd-stoney-gpu-ats-as-broken.patch +++ /dev/null @@ -1,47 +0,0 @@ -From 9b44b0b09decfbe388131a345ba780c57240a7a9 Mon Sep 17 00:00:00 2001 -From: Joerg Roedel <jroedel@suse.de> -Date: Tue, 11 Jul 2017 15:48:00 -0500 -Subject: PCI: Mark AMD Stoney GPU ATS as broken - -ATS is broken on this hardware and causes IOMMU stalls and system failure. -Disable ATS on these devices to make them usable again with IOMMU enabled. - -Note that the commit in the Fixes tag is not buggy; it just uncovers the -problem in the hardware by increasing the ATS flush rate. - -Link: https://lists.linuxfoundation.org/pipermail/iommu/2017-March/020836.html -Link: https://bugzilla.redhat.com/show_bug.cgi?id=1409201 -Fixes: b1516a14657a ("iommu/amd: Implement flush queue") -Signed-off-by: Joerg Roedel <jroedel@suse.de> -Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> -Acked-by: Alex Deucher <alexander.deucher@amd.com> ---- - drivers/pci/quirks.c | 15 +++++++++++++++ - 1 file changed, 15 insertions(+) - -diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c -index 6967c6b..15ee4e9 100644 ---- a/drivers/pci/quirks.c -+++ b/drivers/pci/quirks.c -@@ -4681,3 +4681,18 @@ static void quirk_intel_no_flr(struct pci_dev *dev) - } - DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1502, quirk_intel_no_flr); - DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1503, quirk_intel_no_flr); -+ -+#ifdef CONFIG_PCI_ATS -+/* -+ * Some devices have a broken ATS implementation causing IOMMU stalls. -+ * Don't use ATS for those devices. -+ */ -+static void quirk_no_ats(struct pci_dev *pdev) -+{ -+ dev_info(&pdev->dev, "disabling ATS (broken on this device)\n"); -+ pdev->ats_cap = 0; -+} -+ -+/* AMD Stoney platform GPU */ -+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x98e4, quirk_no_ats); -+#endif /* CONFIG_PCI_ATS */ --- -cgit v1.1 - |