From: stuart.yoder@nxp.com (Stuart Yoder)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/3 v2] arm64: defconfig: enable 48-bit virtual addresses
Date: Wed, 20 Apr 2016 10:57:34 -0500 [thread overview]
Message-ID: <1461167854-3244-1-git-send-email-stuart.yoder@nxp.com> (raw)
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>
---
arch/arm64/configs/defconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 248c242..e8bc263 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -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
--
1.9.0
next reply other threads:[~2016-04-20 15:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-20 15:57 Stuart Yoder [this message]
2016-04-22 11:05 ` [PATCH 2/3 v2] arm64: defconfig: enable 48-bit virtual addresses Catalin Marinas
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