Subject: Re: [RFC PATCH 11/11] powerpc/svm: Increase SWIOTLB buffer size

From: Christoph Hellwig <[email-masked]>
Date: Sat, 25 Aug 2018 10:55:00 +0200

> +config SWIOTLB_DEFAULT_SIZE
> +       int "Size of Software I/O TLB buffer (in MiB)"
> +       default "1024"
> +       depends on PPC_SVM
> +

This belongs into kernel/dma/Kconfig.  That being said I really
don't see why this should be a user visible Kconfig.