From d30a6b84df00128e03588564925dc828a53e6865 Mon Sep 17 00:00:00 2001
From: Tushar Dave <tushar.n.dave@oracle.com>
Date: Fri, 28 Oct 2016 10:12:45 -0700
Subject: sparc64: Enable 64-bit DMA

ATU 64bit addressing allows PCIe devices with 64bit DMA capabilities
to use ATU for 64bit DMA.

Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Reviewed-by: chris hyser <chris.hyser@oracle.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'arch/sparc/Kconfig')

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 5202eb4ba2db..60145c9b9f84 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -93,6 +93,10 @@ config ARCH_ATU
 	bool
 	default y if SPARC64
 
+config ARCH_DMA_ADDR_T_64BIT
+	bool
+	default y if ARCH_ATU
+
 config IOMMU_HELPER
 	bool
 	default y if SPARC64
-- 
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