arm64: Make default dma_ops to be noncoherent
authorRitesh Harjani <ritesh.harjani@gmail.com>
Wed, 23 Apr 2014 05:29:46 +0000 (06:29 +0100)
committerCatalin Marinas <catalin.marinas@arm.com>
Sat, 3 May 2014 21:20:33 +0000 (22:20 +0100)
Currently arm64 dma_ops is by default made coherent which makes it
opposite in default policy from arm.

Make default dma_ops to be noncoherent (same as arm), as currently there
aren't any dma-capable drivers which assumes coherent ops

Signed-off-by: Ritesh Harjani <ritesh.harjani@gmail.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/mm/dma-mapping.c

index 0ba347e59f06a7dbfe3fe7dcc884f9435c791d6e..1f65963a9c0464c5e3233a165957e6788a39da86 100644 (file)
@@ -311,7 +311,7 @@ static int __init swiotlb_late_init(void)
 {
        size_t swiotlb_size = min(SZ_64M, MAX_ORDER_NR_PAGES << PAGE_SHIFT);
 
-       dma_ops = &coherent_swiotlb_dma_ops;
+       dma_ops = &noncoherent_swiotlb_dma_ops;
 
        return swiotlb_late_init_with_default_size(swiotlb_size);
 }