Patchwork [1/3,v2] iommu/fsl: Store iommu domain information pointer in archdata.

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Submitter Sethi Varun-B16395
Date Oct. 4, 2012, 11:56 a.m.
Message ID <1349351808-7156-2-git-send-email-b16395@freescale.com>
Download mbox | patch
Permalink /patch/189090/
State Superseded
Headers show

Comments

Sethi Varun-B16395 - Oct. 4, 2012, 11:56 a.m.
From: Varun Sethi <Varun.Sethi@freescale.com>

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.Sethi@freescale.com>
---
 arch/powerpc/include/asm/device.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

Patch

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