On 1/23/2013 1:06 AM, Joerg Roedel wrote:

On Tue, Jan 22, 2013 at 05:19:10PM -0600, Suthikulpanit, Suravee wrote:
From: Suravee Suthikulpanit <[email protected]>
@@ -1171,6 +1195,8 @@ static int iommu_init_pci(struct amd_iommu *iommu)
                for (i = 0; i < 0x83; i++)
                        iommu->stored_l2[i] = iommu_read_l2(iommu, i);
        }
+       
+       amd_iommu_apply_erratum_746(iommu);
This will also be applied to RD890 IOMMUs, right? This workaround should
be limited to Trinity IOMMUs.

Inside the function, it checks the family and model number.  Only Trinitiy is 
affected.

Suravee


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