https://bugzilla.kernel.org/show_bug.cgi?id=15166
--- Comment #48 from Alex Deucher <alexdeuc...@gmail.com> 2010-05-05 15:00:30
---
One of my coworkers who is also experiencing the problem bisected it down to:
f3eee54276dfd1117fd94259f2b4a38388264724:
commit f3eee54276dfd1117fd94259f2b4a38388264724
Author: Yinghai Lu <ying...@kernel.org>
Date: Mon Dec 14 11:52:15 2009 +0900
x86: Gart: fix breakage due to IOMMU initialization cleanup
This fixes the following breakage of the commit
75f1cdf1dda92cae037ec848ae63690d91913eac:
- GART systems that don't AGP with broken BIOS and more than 4GB
memory are forced to use swiotlb. They can allocate aperture by
hand and use GART.
- GART systems without GAP must disable GART on shutdown.
- swiotlb usage is forced by the boot option,
gart_iommu_hole_init() is not called, so we disable GART
early_gart_iommu_check().
Signed-off-by: Yinghai Lu <ying...@kernel.org>
Signed-off-by: FUJITA Tomonori <fujita.tomon...@lab.ntt.co.jp>
LKML-Reference:
<1260759135-6450-3-git-send-email-fujita.tomon...@lab.ntt.co.jp>
Signed-off-by: Ingo Molnar <mi...@elte.hu>
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