arch:rsicv:select ARCH_HAS_DMA_WRITE_COMBINE

c910 support bufferable, enable DMA_WRITE_COMBINE, let dma_alloc_* memory can be map WRITE_COMBINE. otherwise dma_alloc_* memory be strong order prot to user space. Signed-off-by: Huaming <[email protected]> Signed-off-by: Chen Pei <[email protected]>
ruyisdk · Jul 5, 2024 · 4816bca · 4816bca
1 parent 137df84
commit 4816bca
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
@@ -291,6 +291,7 @@ 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 ARCH_HAS_DMA_WRITE_COMBINE
 
 config RISCV_NONSTANDARD_CACHE_OPS
 	bool