From: Mike Travis <travis@sgi.com>
To: David Woodhouse <dwmw2@infradead.org>,
Chris Wright <chrisw@sous-sol.org>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>
Cc: Mike Habeck <habeck@sgi.com>,
Jesse Barnes <jbarnes@virtuousgeek.org>,
stable@kernel.org, iommu@lists.linux-foundation.org,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 4/7] Intel pci: Use coherent DMA mask when requested
Date: Thu, 26 May 2011 20:32:25 -0500 [thread overview]
Message-ID: <20110527013221.827396251@gulag1.americas.sgi.com> (raw)
In-Reply-To: 20110527013221.231071058@gulag1.americas.sgi.com
[-- Attachment #1: use-coherent-dma-mask.patch --]
[-- Type: text/plain, Size: 806 bytes --]
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 <travis@sgi.com>
Acked-by: Chris Wright <chrisw@sous-sol.org>
Reviewed-by: Mike Habeck <habeck@sgi.com>
---
drivers/pci/intel-iommu.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- linux.orig/drivers/pci/intel-iommu.c
+++ linux/drivers/pci/intel-iommu.c
@@ -2603,8 +2603,7 @@ 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;
--
next prev parent reply other threads:[~2011-05-27 1:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-27 1:32 [PATCH 0/7] Intel pci: Fix various problems with Intel IOMMU code Mike Travis
2011-05-27 1:32 ` [PATCH 1/7] Intel pci: Check for identity mapping candidate using system dma mask Mike Travis
2011-05-27 7:18 ` [stable] " Greg KH
2011-05-27 9:30 ` Ingo Molnar
2011-05-27 9:42 ` Joerg Roedel
2011-05-27 9:59 ` Greg KH
2011-05-27 1:32 ` [PATCH 2/7] Intel pci: Speed up processing of the identity_mapping function Mike Travis
2011-05-27 1:32 ` [PATCH 3/7] Intel pci: Dont cache iova above 32bit Mike Travis
2011-05-27 1:32 ` Mike Travis [this message]
2011-05-27 1:32 ` [PATCH 5/7] Intel pci: Remove Host Bridge devices from identity mapping Mike Travis
2011-05-27 1:32 ` [PATCH 6/7] Intel pci: Add domain check in domain_remove_one_dev_info Mike Travis
2011-05-27 1:32 ` [PATCH 7/7] Intel pci: Indicate 64-bit IOMMU passthrough available Mike Travis
2011-05-27 15:01 ` David Woodhouse
2011-05-28 18:15 [PATCH 0/7] Intel pci: Fix various problems with Intel IOMMU code Mike Travis
2011-05-28 18:15 ` [PATCH 4/7] Intel pci: Use coherent DMA mask when requested Mike Travis
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