From: Varun Sethi <Varun.Sethi@freescale.com>
Date: Mon, 15 Jul 2013 04:50:55 +0000 (+0530)
Subject: powerpc: Add iommu domain pointer to device archdata
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=bb9175051aedb33dcf44741c6f145107ab132a87;p=deliverable%2Flinux.git

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>
---

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