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

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

From: Kumar Gala <hidden>
Date: 2012-09-19 14:23:39
Also in: linux-iommu, lkml

On Sep 19, 2012, at 8:17 AM, [off-list ref] =
[off-list ref] wrote:
From: Varun Sethi <redacted>
=20
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.
=20
Signed-off-by: Varun Sethi <redacted>
---
arch/powerpc/include/asm/device.h |    4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
Not too familiar, but what does the IBM Server IOMMU do for =
iommu_domain?
quoted hunk ↗ jump to hunk
=20
diff --git a/arch/powerpc/include/asm/device.h =
b/arch/powerpc/include/asm/device.h
quoted hunk ↗ jump to hunk
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;
=20
+	/* 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
--=20
1.7.4.1
=20
=20
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