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authorAndi Kleen <ak@suse.de>2006-07-29 19:42:49 (GMT)
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-30 03:59:55 (GMT)
commit65f87d8a8a6e1b560c61951d0a68ed80f7c8ff19 (patch)
treef3f189827eaca620020d3742a347f2be5911c5cf /include
parent355540f3338e1408dac98413f05d612a76d4f5e3 (diff)
[PATCH] x86_64: Fix swiotlb=force
It was broken before. But having it is important as possible hardware bug workaround. And previously there was no way to force swiotlb if there is another IOMMU. Side effect is that iommu=force won't force swiotlb anymore even if there isn't another IOMMU. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-x86_64/swiotlb.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-x86_64/swiotlb.h b/include/asm-x86_64/swiotlb.h
index 5f9a018..ba94ab3 100644
--- a/include/asm-x86_64/swiotlb.h
+++ b/include/asm-x86_64/swiotlb.h
@@ -42,6 +42,8 @@ extern void swiotlb_free_coherent (struct device *hwdev, size_t size,
extern int swiotlb_dma_supported(struct device *hwdev, u64 mask);
extern void swiotlb_init(void);
+extern int swiotlb_force;
+
#ifdef CONFIG_SWIOTLB
extern int swiotlb;
#else

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