Subject: n900 in next-20170901

From: [email-masked] (Tony Lindgren)
Date: Wed, 6 Sep 2017 06:30:57 -0700

Hi,

* Joonsoo Kim <[email-masked]> [170905 16:32]:
> I think that I made a mistake for configuration CONFIG_HIGHMEM=y and
> CONFIG_HAVE_MEMBLOCK_NODE_MAP=y. In this case, the MOVABLE_ZONE can
> be *!highmem*. Could you check that your configuration have above
> options?

CONFIG_HIGHMEM is set yeah.

> And, could you check that following patch works for you?

Does not seem to help, tried against next with just 9caf25f996e8
revert and also with 9caf25f996e8.

Regards,

Tony

> ------------>8-----------------
> diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
> index 38f0fde..4c39c92 100644
> --- a/arch/arm/mm/dma-mapping.c
> +++ b/arch/arm/mm/dma-mapping.c
> @@ -518,7 +518,7 @@ void __init dma_contiguous_remap(void)
>                  * considered as highmem even if it's physical address belong
>                  * to lowmem. Therefore, re-mapping isn't required.
>                  */
> -               if (!IS_ENABLED(CONFIG_HIGHMEM))
> +               if (!is_highmem_idx(ZONE_MOVABLE))
>                         iotable_init(&map, 1);
>         }
>  }
>