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

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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@xxxxxxx>

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
  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



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