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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2009-08-04 23:08:27 +0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-08-28 08:24:11 +0400
commit4a9a6bfe707cfe5bcb0a20eabe240293a095cd10 (patch)
tree6a0fed231234d6b38afe7f03bf82048569da16aa
parent46bab4e4b45ec522ecd5fa4a0e2b4a6e6d1f153a (diff)
downloadlinux-4a9a6bfe707cfe5bcb0a20eabe240293a095cd10.tar.xz
powerpc: Handle SWIOTLB mapping error properly
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
-rw-r--r--arch/powerpc/include/asm/dma-mapping.h5
-rw-r--r--arch/powerpc/kernel/dma-swiotlb.c3
2 files changed, 7 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 91217e4a0bfc..4bd41b4051e3 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -143,6 +143,11 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
+ struct dma_map_ops *dma_ops = get_dma_ops(dev);
+
+ if (dma_ops->mapping_error)
+ return dma_ops->mapping_error(dev, dma_addr);
+
#ifdef CONFIG_PPC64
return (dma_addr == DMA_ERROR_CODE);
#else
diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index d1143a68d82a..e96cbbd9b449 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -42,7 +42,8 @@ struct dma_map_ops swiotlb_dma_ops = {
.sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu,
.sync_single_range_for_device = swiotlb_sync_single_range_for_device,
.sync_sg_for_cpu = swiotlb_sync_sg_for_cpu,
- .sync_sg_for_device = swiotlb_sync_sg_for_device
+ .sync_sg_for_device = swiotlb_sync_sg_for_device,
+ .mapping_error = swiotlb_dma_mapping_error,
};
void pci_dma_dev_setup_swiotlb(struct pci_dev *pdev)