[PATCH 02/12] riscv: only select DMA_DIRECT_REMAP from RISCV_ISA_ZICBOM

[Robin Murphy]

On 16/10/2023 6:47 am, Christoph Hellwig wrote:
> RISCV_DMA_NONCOHERENT is also used for whacky non-standard
> non-coherent ops that use different hooks in dma-direct.

FWIW,

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

> Signed-off-by: Christoph Hellwig <hch at lst.de>
> ---
>   arch/riscv/Kconfig | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> index 0ac0b538379718..9c48fecc671918 100644
> --- a/arch/riscv/Kconfig
> +++ b/arch/riscv/Kconfig
> @@ -273,7 +273,6 @@ config RISCV_DMA_NONCOHERENT
>   	select ARCH_HAS_SYNC_DMA_FOR_CPU
>   	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
>   	select DMA_BOUNCE_UNALIGNED_KMALLOC if SWIOTLB
> -	select DMA_DIRECT_REMAP if MMU
>   
>   config RISCV_NONSTANDARD_CACHE_OPS
>   	bool
> @@ -549,6 +548,7 @@ config RISCV_ISA_ZICBOM
>   	depends on RISCV_ALTERNATIVE
>   	default y
>   	select RISCV_DMA_NONCOHERENT
> +	select DMA_DIRECT_REMAP
>   	help
>   	   Adds support to dynamically detect the presence of the ZICBOM
>   	   extension (Cache Block Management Operations) and enable its