From: Joerg Roedel Date: Mon, 31 May 2010 13:05:20 +0000 (+0200) Subject: x86/amd-iommu: Fall back to GART if initialization fails X-Git-Tag: v2.6.35-rc2~44^2~1^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d7f0776975334070a93370ae048fda0c31a91c38;p=pandora-kernel.git x86/amd-iommu: Fall back to GART if initialization fails This patch implements a fallback to the GART IOMMU if this is possible and the AMD IOMMU initialization failed. Otherwise the fallback would be nommu which is very problematic on machines with more than 4GB of memory or swiotlb which hurts io-performance. Cc: stable@kernel.org Signed-off-by: Joerg Roedel --- Reading git-diff-tree failed