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 3C38CC433F5 for ; Fri, 24 Sep 2021 04:08:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1DE74610CB for ; Fri, 24 Sep 2021 04:08:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239688AbhIXEJv (ORCPT ); Fri, 24 Sep 2021 00:09:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229454AbhIXEJl (ORCPT ); Fri, 24 Sep 2021 00:09:41 -0400 Received: from mail-vs1-xe33.google.com (mail-vs1-xe33.google.com [IPv6:2607:f8b0:4864:20::e33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 724B1C061574; Thu, 23 Sep 2021 21:08:09 -0700 (PDT) Received: by mail-vs1-xe33.google.com with SMTP id az15so8699228vsb.8; Thu, 23 Sep 2021 21:08:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=OrfZTnPPcM70O+mM7svGzbSZyFLavyq7xdJVv7AuMNA=; b=AArxpfs5t7Tz2blzs1aSH0nNCrhMd8+cwSBQ19o4cZa1TsGYBouqIdFikADBbqpdbH //kH56sx3wfBf3MpEP4zIyjrpGtN87iLmdvjRz9DK1j/ho8vLQ8KJ6Ffc2CrxslmlYmh TewPJMNgYPbYaDcmRGDJHtCPKzIYwrhsXcFlO6SlEWY+WZBu9aHeg3xIPgoMBBHk/x9A 5rZLietz9KoYY9tsOgbYAjOp6HpGB7wdU5ue6AhHB48btdeupZlALSeJvWr+NWBqxtzt 1O+kjP3vi2La3Bq6Jd9/2fNy8EBqTDBn65OLwplhZ+ybVX87UsrvAgidu/IjtoCuWvhs Vb9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=OrfZTnPPcM70O+mM7svGzbSZyFLavyq7xdJVv7AuMNA=; b=vZyrL10d+QBNnVYtQYTRYvW4V41EQuU1XYMsyYorkX2dW9wSowSyWOvuGgwvvTW/mS Qzrwxit+MJ2yL5XGsM3bgPsdr/aBUgqaZDcsuLFjKhNi4DHUkiZQ61K6+v2S7M91nkJ+ yZlFpYI2zRKGZodPfssguNsleIWsHUZgeq0Zg4XI/tWHd0r4AMi8W7oVqftQnEP8yA4i eqpIXw2nUsSt5n6D6ECjqiHrei9n4qnM7v2txI/An/L6Q5akJJlyfvps5Rgdam0lYD6f H3iiufARLyIV50pzEq0nidaIz/jfmhbywph6lX8HzjPiANfPwTFwQ1npwjTYTztLJRFX FMIQ== X-Gm-Message-State: AOAM532yTYKPc1JP577/yZwF8JVZv+zkeCvos7Z0CiWHq/dV5XZhsIaT wnfvFdaGP76kSt9CngfCZxMnslpAlEi/rVDlGUU= X-Google-Smtp-Source: ABdhPJzBYtMAeuTPKkvolL/ISASIbDnfE9Ljusmo03aOxkckysqJQg0jrvbRLz3JEOjHsN+a0k6NC4qjSg1U/flIT5c= X-Received: by 2002:a05:6102:e55:: with SMTP id p21mr7453555vst.18.1632456488526; Thu, 23 Sep 2021 21:08:08 -0700 (PDT) MIME-Version: 1.0 References: <20210917035736.3934017-1-chenhuacai@loongson.cn> <20210917035736.3934017-2-chenhuacai@loongson.cn> <20210923203705.GA1936@bug> In-Reply-To: <20210923203705.GA1936@bug> From: Huacai Chen Date: Fri, 24 Sep 2021 12:07:56 +0800 Message-ID: Subject: Re: [PATCH V3 01/22] Documentation: LoongArch: Add basic documentations To: Pavel Machek Cc: Huacai Chen , Arnd Bergmann , Andy Lutomirski , Thomas Gleixner , Peter Zijlstra , Andrew Morton , David Airlie , Jonathan Corbet , Linus Torvalds , linux-arch , "open list:DOCUMENTATION" , LKML , Xuefeng Li , Yanteng Si , Jiaxun Yang Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Pavel, On Fri, Sep 24, 2021 at 4:37 AM Pavel Machek wrote: > > Hi! > > > Add some basic documentations for LoongArch. LoongArch is a new RISC > > ... documentation ... OK, thanks. > > > +wide in LA64. $r0 is always zero, and other registers has no special feature, > > ...have no special features... OK, thanks. > > > +but we actually have an ABI register conversion as below. > > convention? Yes, should be convention here. > > > +``$r21`` ``$x`` Reserved Unused > > +``$r22`` ``$fp`` Frame pointer Yes > > +``$r23``-``$r31`` ``$s0``-``$s8`` Static registers Yes > > +================= =============== =================== ============ > > Not sure I know the term 'static registers' before. "Static register" comes from the MIPS code "SAVE_STATIC", maybe it is called "Saved register" in other places, but I think "static register" is also OK. Huacai > Pavel