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Quirk to disable DMAR with Ricoh card reader/firewire

This commit is contained in:
kyle 2010-10-18 11:39:49 -04:00
parent 7d350a94ee
commit 915df7f6de
2 changed files with 41 additions and 0 deletions
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33
dmar-disable-when-ricoh-multifunction.patch Normal file
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@ -0,0 +1,33 @@
From 6d5193dfd682c5eb6c98024355dd53fbb153cd4f 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

8
kernel.spec
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@ -761,6 +761,8 @@ Patch13630: dm-allow-setting-of-uuid-via-rename-if-not-already-set.patch
Patch13635: r8169-fix-dma-allocations.patch
Patch13636: skge-quirk-to-4gb-dma.patch
Patch13637: dmar-disable-when-ricoh-multifunction.patch
%endif
BuildRoot: %{_tmppath}/kernel-%{KVERREL}-root
@ -1418,6 +1420,9 @@ ApplyPatch r8169-fix-dma-allocations.patch
# rhbz#447489
ApplyPatch skge-quirk-to-4gb-dma.patch
# rhbz#605888
ApplyPatch dmar-disable-when-ricoh-multifunction.patch
# END OF PATCH APPLICATIONS
%endif
@ -2004,6 +2009,9 @@ fi
# and build.
%changelog
* Mon Oct 18 2010 Kyle McMartin <kyle@redhat.com>
- Quirk to disable DMAR with Ricoh card reader/firewire. (rhbz#605888)
* Mon Oct 18 2010 Kyle McMartin <kyle@redhat.com>
- Two networking fixes (skge, r8169) from sgruska. (rhbz#447489,629158)