Joerg Roedel 09067207f6 amd-iommu: set event buffer head and tail to 0 manually
These registers may contain values from previous kernels. So reset them
to known values before enable the event buffer again.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-06-15 16:06:48 +02:00
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