diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-01-21 19:48:59 +0100 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-03-06 03:24:07 +0000 |
| commit | cf65e1c8b3974df5bbf5b7cfbebbd125485d3a48 (patch) | |
| tree | 8e5e759a2b9e3cd0bd14d9843e8d318e9285d2cf /drivers/iommu | |
| parent | 9ee8bc68e866f3aec6a8a563b8e044f0b2e24532 (diff) | |
intel/iommu: force writebuffer-flush quirk on Gen 4 Chipsets
commit 210561ffd72d00eccf12c0131b8024d5436bae95 upstream.
We already have the quirk entry for the mobile platform, but also
reports on some desktop versions. So be paranoid and set it
everywhere.
References: http://www.mail-archive.com/dri-devel@lists.freedesktop.org/msg33138.html
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: "Sankaran, Rajesh" <rajesh.sankaran@intel.com>
Reported-and-tested-by: Mihai Moldovan <ionic@ionic.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index dffdca80a9ce..f44a06740a6e 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -4140,13 +4140,19 @@ static void __devinit quirk_iommu_rwbf(struct pci_dev *dev) { /* * Mobile 4 Series Chipset neglects to set RWBF capability, - * but needs it: + * but needs it. Same seems to hold for the desktop versions. */ printk(KERN_INFO "DMAR: Forcing write-buffer flush capability\n"); rwbf_quirk = 1; } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2a40, quirk_iommu_rwbf); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e00, quirk_iommu_rwbf); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e10, quirk_iommu_rwbf); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e20, quirk_iommu_rwbf); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e30, quirk_iommu_rwbf); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e40, quirk_iommu_rwbf); +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e90, quirk_iommu_rwbf); #define GGC 0x52 #define GGC_MEMORY_SIZE_MASK (0xf << 8) |