[PATCH] arm64: Kconfig: select ZONE_DMA

[Peng Fan (OSS)]

From: Peng Fan <peng.fan@xxxxxxx>

ZONE_DMA should not be disabled, otherwise arm64_dma_phys_limit is
left uninitialized and cause swiotlb have IO TLB above 4GB which
might crash some platforms

Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
---

Not sure whether need to address code to initialize the variables or
force select ZONE_DMA

 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 33446269f692..377b391a41d6 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -206,6 +206,7 @@ config ARM64
 	select SWIOTLB
 	select SYSCTL_EXCEPTION_TRACE
 	select THREAD_INFO_IN_TASK
+	select ZONE_DMA
 	help
 	  ARM 64-bit (AArch64) Linux support.
 
-- 
2.28.0