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[1/3] arm64: Make default dma_ops to be noncoherent

Message ID 1398447254-18527-2-git-send-email-catalin.marinas@arm.com
State Accepted
Commit c7a4a7658d689f664050c45493d79adf053f226e
Headers show

Commit Message

Catalin Marinas April 25, 2014, 5:34 p.m. UTC 
From: Ritesh Harjani <ritesh.harjani@gmail.com>

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 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index 0ba347e59f06..1f65963a9c04 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -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);
 }