[PATCH kernel v11 25/34] powerpc/powernv/ioda2: Introduce helpers to allocate TCE pages

[David Gibson]

On Fri, May 29, 2015 at 06:44:49PM +1000, Alexey Kardashevskiy wrote:
> This is a part of moving TCE table allocation into an iommu_ops
> callback to support multiple IOMMU groups per one VFIO container.
> 
> This moves the code which allocates the actual TCE tables to helpers:
> pnv_pci_ioda2_table_alloc_pages() and pnv_pci_ioda2_table_free_pages().
> These do not allocate/free the iommu_table struct.
> 
> This enforces window size to be a power of two.
> 
> This should cause no behavioural change.
> 
> Signed-off-by: Alexey Kardashevskiy <aik at ozlabs.ru>
> Reviewed-by: Gavin Shan <gwshan at linux.vnet.ibm.com>

Reviewed-by: David Gibson <david at gibson.dropbear.id.au>

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson
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