netdev - [PATCH 02/12] riscv: only select DMA_DIRECT_REMAP from RISCV_ISA

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Date: Mon, 16 Oct 2023 07:47:44 +0200
From: Christoph Hellwig <hch@....de>
To: Greg Ungerer <gerg@...ux-m68k.org>,
	iommu@...ts.linux.dev
Cc: Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Conor Dooley <conor@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>,
	Robin Murphy <robin.murphy@....com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Wei Fang <wei.fang@....com>,
	Shenwei Wang <shenwei.wang@....com>,
	Clark Wang <xiaoning.wang@....com>,
	NXP Linux Team <linux-imx@....com>,
	linux-m68k@...ts.linux-m68k.org,
	netdev@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	linux-renesas-soc@...r.kernel.org,
	Jim Quinlan <james.quinlan@...adcom.com>
Subject: [PATCH 02/12] riscv: only select DMA_DIRECT_REMAP from RISCV_ISA_ZICBOM

RISCV_DMA_NONCOHERENT is also used for whacky non-standard
non-coherent ops that use different hooks in dma-direct.

Signed-off-by: Christoph Hellwig <hch@....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
-- 
2.39.2