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authorChristoph Hellwig <hch@lst.de>2018-12-03 11:43:54 +0100
committerChristoph Hellwig <hch@lst.de>2018-12-13 21:06:17 +0100
commit55897af63091ebc2c3f239c6a6666f748113ac50 (patch)
tree49340a30e15ae65d71fc5f453559340672064d70 /arch/ia64/kernel
parentdma-direct: use dma_direct_map_page to implement dma_direct_map_sg (diff)
downloadlinux-55897af63091ebc2c3f239c6a6666f748113ac50.tar.xz
linux-55897af63091ebc2c3f239c6a6666f748113ac50.zip
dma-direct: merge swiotlb_dma_ops into the dma_direct code
While the dma-direct code is (relatively) clean and simple we actually have to use the swiotlb ops for the mapping on many architectures due to devices with addressing limits. Instead of keeping two implementations around this commit allows the dma-direct implementation to call the swiotlb bounce buffering functions and thus share the guts of the mapping implementation. This also simplified the dma-mapping setup on a few architectures where we don't have to differenciate which implementation to use. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Tested-by: Jesper Dangaard Brouer <brouer@redhat.com> Tested-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel')
-rw-r--r--arch/ia64/kernel/dma-mapping.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index 36dd6aa6d759..80cd3e1ea95a 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -36,7 +36,7 @@ long arch_dma_coherent_to_pfn(struct device *dev, void *cpu_addr,
void __init swiotlb_dma_init(void)
{
- dma_ops = &swiotlb_dma_ops;
+ dma_ops = &dma_direct_ops;
swiotlb_init(1);
}
#endif