fully convert arm to use dma-direct

[Linus Walleij]

On Thu, Apr 21, 2022 at 9:42 AM Christoph Hellwig <hch at lst.de> wrote:

> arm is the last platform not using the dma-direct code for directly
> mapped DMA.  With the dmaboune removal from Arnd we can easily switch
> arm to always use dma-direct now (it already does for LPAE configs
> and nommu).  I'd love to merge this series through the dma-mapping tree
> as it gives us the opportunity for additional core dma-mapping
> improvements.
(...)

>  b/arch/arm/mach-footbridge/Kconfig                   |    1
>  b/arch/arm/mach-footbridge/common.c                  |   19
>  b/arch/arm/mach-footbridge/include/mach/dma-direct.h |    8
>  b/arch/arm/mach-footbridge/include/mach/memory.h     |    4

I think Marc Z has a Netwinder that he can test this on. Marc?
I have one too, just not much in my office because of parental leave.

Yours,
Linus Walleij