From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932891Ab1KGQRv (ORCPT ); Mon, 7 Nov 2011 11:17:51 -0500 Received: from service87.mimecast.com ([91.220.42.44]:50299 "EHLO service87.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932837Ab1KGQR3 (ORCPT ); Mon, 7 Nov 2011 11:17:29 -0500 From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v8 16/16] ARM: LPAE: Add the Kconfig entries Date: Mon, 7 Nov 2011 16:16:58 +0000 Message-Id: <1320682618-1182-17-git-send-email-catalin.marinas@arm.com> X-Mailer: git-send-email 1.7.4.2.g597a6 In-Reply-To: <1320682618-1182-1-git-send-email-catalin.marinas@arm.com> References: <1320682618-1182-1-git-send-email-catalin.marinas@arm.com> X-OriginalArrivalTime: 07 Nov 2011 16:17:14.0654 (UTC) FILETIME=[B63D6BE0:01CC9D68] X-MC-Unique: 111110716172610001 Content-Type: text/plain; charset=WINDOWS-1252 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by nfs id pA7GIPKv015284 This patch adds the ARM_LPAE and ARCH_PHYS_ADDR_T_64BIT Kconfig entries allowing LPAE support to be compiled into the kernel. Signed-off-by: Catalin Marinas --- arch/arm/Kconfig | 2 +- arch/arm/mm/Kconfig | 17 +++++++++++++++++ 2 files changed, 18 insertions(+), 1 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 44789ef..885c04e 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1959,7 +1959,7 @@ endchoice config XIP_KERNEL bool "Kernel Execute-In-Place from ROM" - depends on !ZBOOT_ROM + depends on !ZBOOT_ROM && !ARM_LPAE help Execute-In-Place allows the kernel to run from non-volatile storage directly addressable by the CPU, such as NOR flash. This saves RAM diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 67f75a0..d289cdb 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -629,6 +629,23 @@ config IO_36 comment "Processor Features" +config ARM_LPAE + bool "Support for the Large Physical Address Extension" + depends on MMU && CPU_V7 + help + Say Y if you have an ARMv7 processor supporting the LPAE page + table format and you would like to access memory beyond the + 4GB limit. The resulting kernel image will not run on + processors without the LPA extension. + + If unsure, say N. + +config ARCH_PHYS_ADDR_T_64BIT + def_bool ARM_LPAE + +config ARCH_DMA_ADDR_T_64BIT + def_bool ARM_LPAE + config ARM_THUMB bool "Support Thumb user binaries" depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_V6 || CPU_V6K || CPU_V7 || CPU_FEROCEON