From 1456e9d2c4667a6e9221eda27b9648fb3bcc1e8e Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joerg.roedel@amd.com>
Date: Thu, 22 Dec 2011 14:51:53 +0100
Subject: [PATCH] iommu/amd: Set IOTLB invalidation timeout

To protect the command buffer from hanging when a device
does not respond to an IOTLB invalidation, set a timeout of
1s for outstanding IOTLB invalidations.

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