diff options
Diffstat (limited to 'dmar-disable-when-ricoh-multifunction.patch')
| -rw-r--r-- | dmar-disable-when-ricoh-multifunction.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/dmar-disable-when-ricoh-multifunction.patch b/dmar-disable-when-ricoh-multifunction.patch new file mode 100644 index 000000000..120730f9e --- /dev/null +++ b/dmar-disable-when-ricoh-multifunction.patch @@ -0,0 +1,33 @@ +From da7662784dcced04a5b7a3a5b2bbb8276d699522 Mon Sep 17 00:00:00 2001 +From: Kyle McMartin <kyle@mcmartin.ca> +Date: Sun, 17 Oct 2010 15:55:32 -0400 +Subject: [PATCH] dmar: disable if ricoh multifunction detected + +--- + drivers/pci/intel-iommu.c | 10 ++++++++++ + 1 files changed, 10 insertions(+), 0 deletions(-) + +diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c +index 4789f8e..5923914 100644 +--- a/drivers/pci/intel-iommu.c ++++ b/drivers/pci/intel-iommu.c +@@ -3784,6 +3784,16 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0044, quirk_calpella_no_shadow_g + DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0062, quirk_calpella_no_shadow_gtt); + DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x006a, quirk_calpella_no_shadow_gtt); + ++/* https://bugzilla.redhat.com/show_bug.cgi?id=605888 */ ++static void __devinit quirk_ricoh_multifunction(struct pci_dev *dev) ++{ ++ dmar_disabled = 1; ++} ++DECLARE_PCI_FIXUP_HEADER(0x1180, 0xe822, quirk_ricoh_multifunction); ++DECLARE_PCI_FIXUP_HEADER(0x1180, 0xe230, quirk_ricoh_multifunction); ++DECLARE_PCI_FIXUP_HEADER(0x1180, 0xe832, quirk_ricoh_multifunction); ++DECLARE_PCI_FIXUP_HEADER(0x1180, 0xe476, quirk_ricoh_multifunction); ++ + /* On Tylersburg chipsets, some BIOSes have been known to enable the + ISOCH DMAR unit for the Azalia sound device, but not give it any + TLB entries, which causes it to deadlock. Check for that. We do +-- +1.7.3.1 + |