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[RFC,5/5] RISC-V: Support a new config option for non-coherent DMA

Message ID 20210723214031.3251801-6-atish.patra@wdc.com
State New
Headers show
Series Support non-coherent DMA on RISC-V using a global pool | expand

Commit Message

Atish Patra July 23, 2021, 9:40 p.m. UTC
In future, there will be more RISC-V platforms with non-coherent DMA.
Instead of selecting all the required config options in every soc, create
a new config that selects all the required configs related non-coherent
DMA.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
---
 arch/riscv/Kconfig | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 8fcceb8eda07..931b283c8ec9 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -209,6 +209,14 @@  config PGTABLE_LEVELS
 config LOCKDEP_SUPPORT
 	def_bool y
 
+config RISCV_DMA_NONCOHERENT
+	bool
+	select ARCH_HAS_DMA_PREP_COHERENT
+	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+	select ARCH_HAS_SYNC_DMA_FOR_CPU
+	select ARCH_HAS_SETUP_DMA_OPS
+	select DMA_GLOBAL_POOL
+
 source "arch/riscv/Kconfig.socs"
 source "arch/riscv/Kconfig.erratas"