From b3c73856ae47d43d0d181f9de1c1c6c0820c4515 Mon Sep 17 00:00:00 2001
From: Nishanth Aravamudan <nacc@us.ibm.com>
Date: Mon, 18 Oct 2010 07:27:04 +0000
Subject: [PATCH] powerpc/iommu: Use coherent_dma_mask for alloc_coherent

The IOMMU code has been passing the dma-mask instead of the
coherent_dma_mask to the iommu allocator.  Coherent allocations should
be made using the coherent_dma_mask.

Also update the vio code to ensure the coherent_dma_mask is set. Without
this change drivers, such as ibmvscsi, fail to load with the corrected
dma_iommu_alloc_coherent().

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
Reading git-format-patch failed