From 815b33fdc279d34ab40a8bfe1866623a4cc5669b Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Wed, 6 Apr 2011 17:26:49 +0200
Subject: [PATCH] x86/amd-iommu: Cleanup completion-wait handling

This patch cleans up the implementation of completion-wait
command sending. It also switches the completion indicator
from the MMIO bit to a memory store which can be checked
without IOMMU locking.
As a side effect this patch makes the __iommu_queue_command
function obsolete and so it is removed too.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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