Add a new field in the device (powerpc) archdata structure for storing iommu 
domain
information pointer. This pointer is stored when the device is attached to a 
particular
domain.

Signed-off-by: Varun Sethi <varun.se...@freescale.com>
---
- no change in this version
 arch/powerpc/include/asm/device.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/include/asm/device.h 
b/arch/powerpc/include/asm/device.h
index 77e97dd..6dc79fe 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -28,6 +28,10 @@ struct dev_archdata {
                void            *iommu_table_base;
        } dma_data;
 
+       /* IOMMU domain information pointer. This would be set
+        * when this device is attached to an iommu_domain.
+        */
+       void                    *iommu_domain;
 #ifdef CONFIG_SWIOTLB
        dma_addr_t              max_direct_dma_addr;
 #endif
-- 
1.7.4.1


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