2015-06-01 07:43:04

by David Gibson

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

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 <[email protected]>
> Reviewed-by: Gavin Shan <[email protected]>

Reviewed-by: David Gibson <[email protected]>

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David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
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