From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0E3CC433DF for ; Fri, 12 Jun 2020 10:18:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C598B206A4 for ; Fri, 12 Jun 2020 10:18:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ViukwVvk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726479AbgFLKSs (ORCPT ); Fri, 12 Jun 2020 06:18:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45460 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726272AbgFLKSr (ORCPT ); Fri, 12 Jun 2020 06:18:47 -0400 Received: from mail-pf1-x444.google.com (mail-pf1-x444.google.com [IPv6:2607:f8b0:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C71EC03E96F for ; Fri, 12 Jun 2020 03:18:47 -0700 (PDT) Received: by mail-pf1-x444.google.com with SMTP id 10so4090298pfx.8 for ; Fri, 12 Jun 2020 03:18:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=qrqb7rFrPm71zufQQQJM2Qw+hcWl7jQI7PiyTPO3UHw=; b=ViukwVvkgr00MbjToEOcrPK4Woyhmram6FnQaogQzeqmiRUQnsvSwjkQRER59XdQe/ sZFvgy0xWtF795/qKsCne3X6r8cGBk3KMvVwtpflZ4+r8zCBUmF4JQqhyMFJl8wruKBN 8WZaJq/f+CBFIH4wWLIuBMc5TUZ14cDxear1YqCHwL4vzl4ZYBfExmzNZQ+WpHpbyh3Q knQgqzzBlo7JQICJpkbJyQkGz6kVulHYq8TfVbRcaVKd07gvUqetQddUc0SVo0mfk3kt t7r1hQLAZMVbeKDNOiZyVbmG0ovJnLuxYY4PVA/DamoL5LrvBVE0tijvhdVeNFiDBN/1 Q+rA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=qrqb7rFrPm71zufQQQJM2Qw+hcWl7jQI7PiyTPO3UHw=; b=ZHjVh3JJ1ueifUTld0NghSVHe6qlqDucSlJXb4lPA6wNJLNkM7fCfaD4Do66HhpGdW zXIF9lKM7n5WFvdOVPiRIX/bpoXT9P4I9rQsOQpoUFuLBY1ysIRfIp0RhfeahtbyeOc7 QQ9OX3G8YISKyRWensuxtzoDDbLBqUcJ16LZa8fu8elGKmV6wMhDXSQTEssX0/ZXZjwu sThGHyteYa1+mbBumyscQvwrkNh9DGOw8/L6AsUff1ZL8dPfv9EqPcEpMvEOliBH2BaF fkvrHv5Fl3tvUSBxxwlH/c0XUvbpZduD4z0ccqnV6RErVwILZm4iYNNeN9i+BfefAaAw kTMQ== X-Gm-Message-State: AOAM533DGKOE/C3BEzfzIL8uO4yWmmm00eVhsLhMz84D3VGAMngv8ccX pHLUUaTMaTZdWlJr+sM/FDE= X-Google-Smtp-Source: ABdhPJwVWZa81QyZtpAyosO7H+mBqn21lO1GU02lU/SfiVDeiGLvuMOQXAEavq3IzBRp17NqlqMJAg== X-Received: by 2002:a05:6a00:15c7:: with SMTP id o7mr10779006pfu.51.1591957126712; Fri, 12 Jun 2020 03:18:46 -0700 (PDT) Received: from localhost ([49.205.222.116]) by smtp.gmail.com with ESMTPSA id n2sm6039429pfd.125.2020.06.12.03.18.45 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Fri, 12 Jun 2020 03:18:45 -0700 (PDT) Date: Fri, 12 Jun 2020 15:48:44 +0530 From: afzal mohammed To: Russell King - ARM Linux admin , Arnd Bergmann , Linus Walleij Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, Nicolas Pitre , Catalin Marinas , Will Deacon Subject: [RFC 3/3] ARM: provide CONFIG_VMSPLIT_4G_DEV for development Message-ID: <333fdfb5080726988b1223a5fbe8ebcc4d6ec3e0.1591885760.git.afzal.mohd.ma@gmail.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.3 (2018-01-21) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Select UACCESS_GUP_KMAP_MEMCPY initially. Signed-off-by: afzal mohammed --- arch/arm/Kconfig | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index c77c93c485a08..ae2687679d7c8 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1326,6 +1326,15 @@ config PAGE_OFFSET default 0xB0000000 if VMSPLIT_3G_OPT default 0xC0000000 +config VMSPLIT_4G_DEV + bool "Experimental changes for 4G/4G user/kernel split" + depends on ARM_LPAE + select UACCESS_GUP_KMAP_MEMCPY + help + Experimental changes during 4G/4G user/kernel split development. + Existing vmsplit config option is used, once development is done, + this would be put as a new choice & _DEV suffix removed. + config NR_CPUS int "Maximum number of CPUs (2-32)" range 2 32 -- 2.26.2