[PATCH 05/12] dma-direct: add depdenencies to CONFIG_DMA_GLOBAL_POOL

[Robin Murphy]

On 16/10/2023 6:47 am, Christoph Hellwig wrote:
> CONFIG_DMA_GLOBAL_POOL can't be combined with other DMA coherent
> allocators.  Add dependencies to Kconfig to document this, and make
> kconfig complain about unment dependencies if someone tries.

Reviewed-by: Robin Murphy <robin.murphy at arm.com>

> Signed-off-by: Christoph Hellwig <hch at lst.de>
> ---
>   kernel/dma/Kconfig | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig
> index f488997b071712..4524db877eba36 100644
> --- a/kernel/dma/Kconfig
> +++ b/kernel/dma/Kconfig
> @@ -135,6 +135,8 @@ config DMA_COHERENT_POOL
>   
>   config DMA_GLOBAL_POOL
>   	select DMA_DECLARE_COHERENT
> +	depends on !ARCH_HAS_DMA_SET_UNCACHED
> +	depends on !DMA_DIRECT_REMAP
>   	bool
>   
>   config DMA_DIRECT_REMAP