From patchwork Wed Sep 19 13:17:10 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [RFC, 1/3] iommu/fsl: Store iommu domain information pointer in archdata. Date: Wed, 19 Sep 2012 03:17:10 -0000 From: Sethi Varun-B16395 X-Patchwork-Id: 185035 Message-Id: <1348060632-12997-2-git-send-email-b16395@freescale.com> To: , , , Cc: Varun Sethi From: Varun Sethi 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 --- 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