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authorLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>2023-09-01 11:51:11 +0100
committerPalmer Dabbelt <palmer@rivosinc.com>2023-09-08 11:25:26 -0700
commite7ddd00eb3752b109e24eee19cb6b7421059d4db (patch)
treef712410e27e6325a5c6f116df0c18d6dd71eeff8
parent77eea559bae925e3cd3c5193efcd37675ec227df (diff)
riscv: Kconfig: Select DMA_DIRECT_REMAP only if MMU is enabled
kernel/dma/mapping.c has its use of pgprot_dmacoherent() inside an #ifdef CONFIG_MMU block. kernel/dma/pool.c has its use of pgprot_dmacoherent() inside an #ifdef CONFIG_DMA_DIRECT_REMAP block. So select DMA_DIRECT_REMAP only if MMU is enabled for RISCV_DMA_NONCOHERENT config. This avoids users to explicitly select MMU. Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20230901105111.311200-1-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
-rw-r--r--arch/riscv/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 712ae0269131..d607ab0f7c6d 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -273,7 +273,7 @@ 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
+ select DMA_DIRECT_REMAP if MMU
config RISCV_NONSTANDARD_CACHE_OPS
bool