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authorVarun Sethi <Varun.Sethi@freescale.com>2013-07-15 10:20:55 +0530
committerJoerg Roedel <joro@8bytes.org>2013-08-14 11:38:34 +0200
commitbb9175051aedb33dcf44741c6f145107ab132a87 (patch)
tree646676bbc5b3991fc70f850c836e7ff140832ba2 /arch/powerpc/include
parentd4e4ab86bcba5a72779c43dc1459f71fea3d89c8 (diff)
downloadlinux-bb9175051aedb33dcf44741c6f145107ab132a87.tar.gz
powerpc: Add iommu domain pointer to device archdata
Add an iommu domain pointer to device (powerpc) archdata.  Devices
are attached to iommu domains and this pointer provides a mechanism
to correlate between a device and the associated iommu domain.  This
field is set when a device is attached to a domain.

Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Diffstat (limited to 'arch/powerpc/include')
-rw-r--r--arch/powerpc/include/asm/device.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h
index 77e97dd0c15d..38faeded7d59 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -28,6 +28,9 @@ struct dev_archdata {
 		void		*iommu_table_base;
 	} dma_data;
 
+#ifdef CONFIG_IOMMU_API
+	void			*iommu_domain;
+#endif
 #ifdef CONFIG_SWIOTLB
 	dma_addr_t		max_direct_dma_addr;
 #endif