From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754143Ab1AXR4r (ORCPT ); Mon, 24 Jan 2011 12:56:47 -0500 Received: from service87.mimecast.com ([94.185.240.25]:51624 "HELO service87.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1754090Ab1AXR4h (ORCPT ); Mon, 24 Jan 2011 12:56:37 -0500 From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 19/19] ARM: LPAE: Add the Kconfig entries Date: Mon, 24 Jan 2011 17:56:01 +0000 Message-Id: <1295891761-18366-20-git-send-email-catalin.marinas@arm.com> X-Mailer: git-send-email 1.7.3.2.164.g6f10c.dirty In-Reply-To: <1295891761-18366-1-git-send-email-catalin.marinas@arm.com> References: <1295891761-18366-1-git-send-email-catalin.marinas@arm.com> X-OriginalArrivalTime: 24 Jan 2011 17:56:16.0303 (UTC) FILETIME=[FF2EDBF0:01CBBBEF] X-MC-Unique: 111012417563105201 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 mail.home.local id p0OHvKs6031572 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 | 13 +++++++++++++ 2 files changed, 14 insertions(+), 1 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 35f32e1..8c82454 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1656,7 +1656,7 @@ config CMDLINE_FORCE 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 9d30c6f..2ec3951 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -621,6 +621,19 @@ 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. + +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_V7 || CPU_FEROCEON