tree e7528ed3ed14b57f5861edb528c86adb1c66c393
parent 56d8adc5695a8d3f070c8498d532389580af5611
author Nishanth Aravamudan <nacc@us.ibm.com> 1287386824 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> 1291868270 +1100

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>