* [PATCH 2/3 v2] arm64: defconfig: enable 48-bit virtual addresses
@ 2016-04-20 15:57 Stuart Yoder
2016-04-22 11:05 ` Catalin Marinas
0 siblings, 1 reply; 2+ messages in thread
From: Stuart Yoder @ 2016-04-20 15:57 UTC (permalink / raw)
To: linux-arm-kernel
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
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH 2/3 v2] arm64: defconfig: enable 48-bit virtual addresses
2016-04-20 15:57 [PATCH 2/3 v2] arm64: defconfig: enable 48-bit virtual addresses Stuart Yoder
@ 2016-04-22 11:05 ` Catalin Marinas
0 siblings, 0 replies; 2+ messages in thread
From: Catalin Marinas @ 2016-04-22 11:05 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Apr 20, 2016 at 10:57:34AM -0500, Stuart Yoder wrote:
> 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>
^ permalink raw reply [flat|nested] 2+ messages in thread
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