This is a note to let you know that I've just added the patch titled
intel-iommu: Use coherent DMA mask when requested
to the 2.6.39-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
intel-iommu-use-coherent-dma-mask-when-requested.patch
and it can be found in the queue-2.6.39 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From c681d0ba1252954208220ad32248a3e8e2fc98e4 Mon Sep 17 00:00:00 2001
From: Mike Travis <[email protected]>
Date: Sat, 28 May 2011 13:15:05 -0500
Subject: intel-iommu: Use coherent DMA mask when requested
From: Mike Travis <[email protected]>
commit c681d0ba1252954208220ad32248a3e8e2fc98e4 upstream.
The __intel_map_single function is not honoring the passed in DMA mask.
This results in not using the coherent DMA mask when called from
intel_alloc_coherent().
Signed-off-by: Mike Travis <[email protected]>
Acked-by: Chris Wright <[email protected]>
Reviewed-by: Mike Habeck <[email protected]>
Signed-off-by: David Woodhouse <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/pci/intel-iommu.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -2606,8 +2606,7 @@ static dma_addr_t __intel_map_single(str
iommu = domain_get_iommu(domain);
size = aligned_nrpages(paddr, size);
- iova = intel_alloc_iova(hwdev, domain, dma_to_mm_pfn(size),
- pdev->dma_mask);
+ iova = intel_alloc_iova(hwdev, domain, dma_to_mm_pfn(size), dma_mask);
if (!iova)
goto error;
Patches currently in stable-queue which might be from [email protected] are
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