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(parent: f9a07f3) | patch
iommu/amd: Add workaround for event log erratum
authorJoerg Roedel <joerg.roedel@amd.com>
Thu, 12 Apr 2012 12:12:00 +0000 (14:12 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 9 Jun 2012 15:36:10 +0000 (00:36 +0900)
commitc2fcf3a04bc4c9a9b97962b3b71c86ba393672e3
tree455495462a9c3443d1e2bc2d755294d8853f8947tree | snapshot
parentf9a07f3089169d943ba0e61e7670e61199020870commit | diff
iommu/amd: Add workaround for event log erratum

commit 3d06fca8d2aa3543030e40b95f1d62f9f5a03540 upstream.

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.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/iommu/amd_iommu.c diff | blob | history
Linux kernel for KaRo TX COM modules