Received: by 2002:a05:6358:d09b:b0:dc:cd0c:909e with SMTP id jc27csp2065971rwb; Wed, 30 Nov 2022 01:41:06 -0800 (PST) X-Google-Smtp-Source: AA0mqf6GyOMunInXQfBoDm0aJ5jB4xs8gkOStthu5VYoUW4gICR7ckpPHBY65KdYktBdcOg0QIn+ X-Received: by 2002:a17:906:a050:b0:78d:47c8:e80f with SMTP id bg16-20020a170906a05000b0078d47c8e80fmr51672073ejb.700.1669801266389; Wed, 30 Nov 2022 01:41:06 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1669801266; cv=none; d=google.com; s=arc-20160816; b=B1AgHLmF0ywBQX2Bd0HTjgMFH4qrYMVWDQphyt344/kqaL/RxqSLt0T5F+I+9CDeuB uUIIgE8gcOYsNNFSbFJ8UQhn+lA4xx9hDK9upWGvr+sv76xoamnIzTJ3vHMEyopvjJMd lTef17WCYxc0wtWVNgyxuE9NLJSGBHA8g636yv2kAco3Azvqt7cbh0a7SuOzwQtycinm Uc5JQIy48nW3sQYymq6WRjbx4+1mYh/LZh5NCtR9vKrL9izMUTwkEJXDt27sCtoL+xQR AW/lqoZ82FEeHn2Ith40C0Pi84LlYs298xdfnVd/U7ffwbrJtcSkx7gkE3nzpQsvAXbW mhlA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version:date :message-id:subject:references:in-reply-to:cc:to:from; bh=aD1QFDxJsf7dtegMBQ2FWL/qzWEYRo1TIQPWOYJ/uRE=; b=OPLJsd25aqjUG5s9SKx/RTqyLaEUhUZzYNx8t0XmUajGtY/7qva3YNLvnmDsklrnI3 Ib7VIQS1WyfkndzXCZittcTLtJMcjz4q9BMTFJuF7B1M9JVpT68t6ybrGlEn0Txz5nUT cCAk4HcJ04P8ZsmxgAL64cbqAKdedlI106DbIcaBJ8juaDYycarylU2JU8qW+4FmacTG mVQEeFLarUyR3G1uuT7cQyx8O+EJ9SJ0oodZeA3msqkGS6gdeDwIcwQY0gOjCwSqErkO 45EfQxhCtAkn9rw6mF54GZXLFR0BlcCPzfXWO84vyve4Jyacq6zEC+G331Rwg28vTBB5 vxCA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id eb7-20020a0564020d0700b0046906b7a5c8si893920edb.559.2022.11.30.01.40.44; Wed, 30 Nov 2022 01:41:06 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234587AbiK3JcB (ORCPT + 84 others); Wed, 30 Nov 2022 04:32:01 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32798 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233554AbiK3Jbb (ORCPT ); Wed, 30 Nov 2022 04:31:31 -0500 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 462275655D for ; Wed, 30 Nov 2022 01:31:31 -0800 (PST) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4NMYqj6lLyz4xN2; Wed, 30 Nov 2022 20:31:29 +1100 (AEDT) From: Michael Ellerman To: Nicholas Piggin , Christophe Leroy , Michael Ellerman Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org In-Reply-To: <67c3b5d44edfec054234ea9b4d05fc4b4f7f8a0e.1664346554.git.christophe.leroy@csgroup.eu> References: <67c3b5d44edfec054234ea9b4d05fc4b4f7f8a0e.1664346554.git.christophe.leroy@csgroup.eu> Subject: Re: [PATCH] powerpc/8xx: Reverse order entries are written by __set_pte_at() Message-Id: <166980023882.3017288.12713313027194330624.b4-ty@ellerman.id.au> Date: Wed, 30 Nov 2022 20:23:58 +1100 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_PASS, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 28 Sep 2022 08:29:22 +0200, Christophe Leroy wrote: > At the time being, with 16k pages __set_pte_at() writes table entries > in reverse order: > > 294: 91 49 00 0c stw r10,12(r9) > 298: 91 49 00 08 stw r10,8(r9) > 29c: 91 49 00 04 stw r10,4(r9) > 2a0: 91 49 00 00 stw r10,0(r9) > > [...] Applied to powerpc/next. [1/1] powerpc/8xx: Reverse order entries are written by __set_pte_at() https://git.kernel.org/powerpc/c/0b4721815c5328e08c3acdee4a53890e012d830b cheers