Re: [PATCH v2 3/3] iommu/io-pgtable-arm-v7s: Request DMA32 memory, and improve debugging

[Robin Murphy]

On 21/11/2018 17:38, Christopher Lameter wrote:
> On Wed, 21 Nov 2018, Will Deacon wrote:
>
> > > +#define ARM_V7S_TABLE_SLAB_CACHE SLAB_CACHE_DMA32
>
> SLAB_CACHE_DMA32??? WTH is going on here? We are trying to get rid of
> the dma slab array.

See the previous two patches in this series. If there's already a 
(better) way to have a kmem_cache which allocates its backing pages with 
GFP_DMA32, please do let us know.

Robin.