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=-5.1 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 44D65C433DB for ; Tue, 29 Dec 2020 10:55:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 051DB20867 for ; Tue, 29 Dec 2020 10:55:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726500AbgL2Kzo (ORCPT ); Tue, 29 Dec 2020 05:55:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53710 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726161AbgL2Kzn (ORCPT ); Tue, 29 Dec 2020 05:55:43 -0500 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54F83C0613D6 for ; Tue, 29 Dec 2020 02:55:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=0uQgaj597Ggj1wDQBfIEf1REq00x52pMob7nc+PArJU=; b=mlhUCDwZ+CoWj3o1JuQ8YPN/v kuVr8wCcnpL3CJmQcVa6UeM6tWmv4oPhGz1xVNocGRANCxSmmrolYfZI+6ygqgrKcMTUd/VB/GSeC 2ecDBVLsgmTxKkIf69TJ+xJMB905Obyy7f0XrQun20TbsgTVLoasg/kkT8MyAFgQfR2oCGfqJtze6 BJbq5obH4nJR8vpTF3riOFUQxE0g70QW8YM4561/dc/pmF/a4GbrXI8rym9bnyNDYcgM91w81PhCk jRz4MuSc8UmSXO7edSl5WPPV4r8H3KP64dWMg3moDTVBHl3y7RHPy+IoYkrWgkbOuQPYOz7uO8ctD CzWUNvKFA==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:44868) by pandora.armlinux.org.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kuCeW-00053e-VP; Tue, 29 Dec 2020 10:54:57 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1kuCeW-0001An-IG; Tue, 29 Dec 2020 10:54:56 +0000 Date: Tue, 29 Dec 2020 10:54:56 +0000 From: Russell King - ARM Linux admin To: Arnd Bergmann Cc: Zhen Lei , Greg Kroah-Hartman , Will Deacon , Jason Cooper , Haojian Zhuang , Arnd Bergmann , linux-arm-kernel , linux-kernel Subject: Re: [PATCH 1/1] ARM: LPAE: use phys_addr_t instead of unsigned long in outercache hooks Message-ID: <20201229105456.GM1551@shell.armlinux.org.uk> References: <20201225114458.1334-1-thunder.leizhen@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: Russell King - ARM Linux admin Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Dec 28, 2020 at 08:00:00AM +0100, Arnd Bergmann wrote: > Wouldn't this also be needed by an Armada XP that supports > more than 4GB of RAM but has an outer cache? While Armada XP has an outer cache, it requires no maintanence; the only support the kernel has is for configuring it at boot and resume: * For Aurora cache in no outer mode, enable via the CP15 coprocessor * broadcasting of cache commands to L2. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!