Re: [PATCH v3, RFC] iommu/io-pgtable-arm-v7s: Use page_frag to request DMA32 memory

On Tue, Dec 04, 2018 at 04:23:00PM +0800, Nicolas Boichat wrote: > IOMMUs using ARMv7 short-descriptor format require page tables > (level 1 and 2) to be allocated within the first 4GB of RAM, even > on 64-bit systems. > > For level 1/2 tables, ensure GFP_DMA32 is used if CONFIG_ZONE_DMA32 > is

Re: [PATCH v3, RFC] iommu/io-pgtable-arm-v7s: Use page_frag to request DMA32 memory

On Tue, Dec 04, 2018 at 04:23:00PM +0800, Nicolas Boichat wrote: > IOMMUs using ARMv7 short-descriptor format require page tables > (level 1 and 2) to be allocated within the first 4GB of RAM, even > on 64-bit systems. > > For level 1/2 tables, ensure GFP_DMA32 is used if CONFIG_ZONE_DMA32 > is