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| author | Christoph Hellwig <hch@lst.de> | 2019-01-16 19:01:48 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2019-01-23 22:14:56 +0100 |
| commit | 60d8cd572f655aac6107a2330dced004ad1fe3d7 (patch) | |
| tree | ca68772a843082cf5dfa42cad2f9275cc53e4984 /arch/arm64/mm | |
| parent | Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang... (diff) | |
| download | linux-60d8cd572f655aac6107a2330dced004ad1fe3d7.tar.xz linux-60d8cd572f655aac6107a2330dced004ad1fe3d7.zip | |
arm64/xen: fix xen-swiotlb cache flushing
Xen-swiotlb hooks into the arm/arm64 arch code through a copy of the DMA
DMA mapping operations stored in the struct device arch data.
Switching arm64 to use the direct calls for the merged DMA direct /
swiotlb code broke this scheme. Replace the indirect calls with
direct-calls in xen-swiotlb as well to fix this problem.
Fixes: 356da6d0cde3 ("dma-mapping: bypass indirect calls for dma-direct")
Reported-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Diffstat (limited to 'arch/arm64/mm')
| -rw-r--r-- | arch/arm64/mm/dma-mapping.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index fb0908456a1f..78c0a72f822c 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -466,9 +466,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, __iommu_setup_dma_ops(dev, dma_base, size, iommu); #ifdef CONFIG_XEN - if (xen_initial_domain()) { - dev->archdata.dev_dma_ops = dev->dma_ops; + if (xen_initial_domain()) dev->dma_ops = xen_dma_ops; - } #endif } |