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=-2.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 40590C433E0 for ; Wed, 17 Mar 2021 05:11:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1932864F7B for ; Wed, 17 Mar 2021 05:11:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229791AbhCQFKw (ORCPT ); Wed, 17 Mar 2021 01:10:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45898 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229472AbhCQFKc (ORCPT ); Wed, 17 Mar 2021 01:10:32 -0400 Received: from mail-io1-xd2c.google.com (mail-io1-xd2c.google.com [IPv6:2607:f8b0:4864:20::d2c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 64A52C06174A; Tue, 16 Mar 2021 22:10:21 -0700 (PDT) Received: by mail-io1-xd2c.google.com with SMTP id w11so13932805iol.13; Tue, 16 Mar 2021 22:10:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=cNLwJfGbNynxup/obYAsvOvgiuDkV2f8BaYfNVcffPM=; b=YAk5/MfvHIGS7MkYlXyTvIO+qdfu8BBV+rneab67kW/2ZCQackKZeZZf/DIr8CjCDV Bh8Blj3fvftJ4EoSWw+oilpWj4kX1mTWL1qYvc7dBQKEwQVAIgZD8Qb5+KXMT1/ufKl3 iowZhk7htmgM4tsh9ebKCEts0EkobI4Xxc5WlIK10GIRTKq+sZfZxHCFPqI0lOs5CHrM 191XwZsobT3genR1BokEcQsONxxg8TTTdDo7g0gt/9DVj7OkGQH/CRoed76wnAlfc3S0 X3j4Hemwqt5CeefXjUwHCDg3bZza2IOMaa2mJLLzePbRiN7k5wsN15tH0EUxbabhDP4m 8MoA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=cNLwJfGbNynxup/obYAsvOvgiuDkV2f8BaYfNVcffPM=; b=rEUe75pXG79bbLJBf0gn9cb1DktJ8L9nFbF8oRLPPR2865cIf4oEBDjJsDEZRvjQR9 iANg3LFwWxFR+2rxY8EgSVfinzHk10Q7h8ppx9fV2qF0VlIx9khMHsnvcz6rQvp9hHoC 0YlHxMKKxMs6VaeC+G1rtgi02g9AnSCGvJVnh48hwWgOhorUZ/mh4tApU+6LbPx568if Zp/gDjHoFdr0z2BIPAGBfZtVzyWVh87spT00vPvV3NK5q4ydryNXymdMlFZza7krcqyR tV4Gk6Fr2WzFttyMBCgRjgeqCCPd7RHlCsGebtZmi5HFTHOjAqRkH7hitMviFjdihujJ eWoA== X-Gm-Message-State: AOAM531aw9mgyzIOJc82Z8Nr7ANvsPPMHBIfD8VD/q7H8B45y8Ycz+pD 2//QJEi5wnuDkGYUJF5n5zNowRHzaNhH5ojk4PM= X-Google-Smtp-Source: ABdhPJypXsjxePYqCHgTaK6qLrOWAykSLOcbTfiGgwTA+1EUVIL1Js3JhmAO71gdE78+I+htFFWVRj3cmUZ0MLeWdx0= X-Received: by 2002:a05:6638:11c8:: with SMTP id g8mr1629159jas.38.1615957820860; Tue, 16 Mar 2021 22:10:20 -0700 (PDT) MIME-Version: 1.0 References: <20210307194030.8007-1-ilya.lipnitskiy@gmail.com> <20210312151934.GA4209@alpha.franken.de> In-Reply-To: <20210312151934.GA4209@alpha.franken.de> From: Ilya Lipnitskiy Date: Tue, 16 Mar 2021 22:10:09 -0700 Message-ID: Subject: Re: [PATCH] MIPS: fix memory reservation for non-usermem setups To: Thomas Bogendoerfer Cc: Tiezhu Yang , Jinyang He , Mike Rapoport , Youling Tang , Tobias Wolf , Marcin Nowakowski , linux-mips@vger.kernel.org, Linux Kernel Mailing List , stable@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Hi Thomas, On Fri, Mar 12, 2021 at 7:19 AM Thomas Bogendoerfer wrote: > > On Sun, Mar 07, 2021 at 11:40:30AM -0800, Ilya Lipnitskiy wrote: > > From: Tobias Wolf > > > > Commit 67a3ba25aa95 ("MIPS: Fix incorrect mem=X@Y handling") introduced a new > > issue for rt288x where "PHYS_OFFSET" is 0x0 but the calculated "ramstart" is > > not. As the prerequisite of custom memory map has been removed, this results > > in the full memory range of 0x0 - 0x8000000 to be marked as reserved for this > > platform. > > and where is the problem here ? Turns out this was already attempted to be upstreamed - not clear why it wasn't merged. Context: https://lore.kernel.org/linux-mips/6504517.U6H5IhoIOn@loki/ I hope the thread above helps you understand the problem. > > Thomas. > > -- > Crap can work. Given enough thrust pigs will fly, but it's not necessarily a > good idea. [ RFC1925, 2.3 ] Ilya