Thread (9 messages) 9 messages, 2 authors, 2012-10-04

[RFC][PATCH 1/3] iommu/fsl: Store iommu domain information pointer in archdata.

From: <hidden>
Date: 2012-09-19 13:20:53
Also in: linux-iommu, lkml
Subsystem: linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Michael Ellerman, Linus Torvalds

From: Varun Sethi <redacted>

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 <redacted>
---
 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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