arm64: defconfig: enable 48-bit virtual addresses
authorStuart Yoder <stuart.yoder@nxp.com>
Wed, 20 Apr 2016 15:57:34 +0000 (10:57 -0500)
committerShawn Guo <shawnguo@kernel.org>
Wed, 27 Apr 2016 02:11:58 +0000 (10:11 +0800)
Some armv8 SoCs (e.g. ls2080a) have physical memory maps with discontiguous
DDR regions that require 48-bit VA to have the linear map cover the entire
range of DDR.

Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
arch/arm64/configs/defconfig

index 248c242..e8bc263 100644 (file)
@@ -61,6 +61,7 @@ CONFIG_PCI_XGENE=y
 CONFIG_PCI_LAYERSCAPE=y
 CONFIG_PCI_HISI=y
 CONFIG_PCIE_QCOM=y
+CONFIG_ARM64_VA_BITS_48=y
 CONFIG_SCHED_MC=y
 CONFIG_PREEMPT=y
 CONFIG_KSM=y