[PATCH v4 08/12] riscv: Enable DMA_RESTRICTED_POOL in defconfig

From: Anup Patel

Date: Wed Apr 29 2026 - 08:56:33 EST


The RISC-V ramsink trace component may have implementation specific
restrictions such that the component can only write trace data in
particular parts of DRAM.

Enable DMA_RESTRICTED_POOL in the defconfig so that dma_alloc_*()
and dma_free_*() APIs work for devices with DMA address restrictions.

Signed-off-by: Anup Patel <anup.patel@xxxxxxxxxxxxxxxx>
---
arch/riscv/configs/defconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig
index 6f5343db1f8a..6a98d6dc28b1 100644
--- a/arch/riscv/configs/defconfig
+++ b/arch/riscv/configs/defconfig
@@ -306,6 +306,7 @@ CONFIG_SECURITY_APPARMOR=y
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_DEV_VIRTIO=y
+CONFIG_DMA_RESTRICTED_POOL=y
CONFIG_PRINTK_TIME=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_FS=y
--
2.43.0