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authorJoerg Roedel <joerg.roedel@amd.com>2012-04-12 14:12:00 +0200
committerJoerg Roedel <joerg.roedel@amd.com>2012-04-12 14:16:14 +0200
commit3d06fca8d2aa3543030e40b95f1d62f9f5a03540 (patch)
treefcef864e872b18c00991cc1805c279f977e61fca /lib
parenta3b93121430c7b46c2895a7744261be107ccdf7f (diff)
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iommu/amd: Add workaround for event log erratum
Due to a recent erratum it can happen that the head pointer of the event-log is updated before the actual event-log entry is written. This patch implements the recommended workaround. Cc: stable@vger.kernel.org # all stable kernels Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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