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=-8.2 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=ham 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 9A582C04EBF for ; Mon, 23 Sep 2019 12:27:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6A3F8207FD for ; Mon, 23 Sep 2019 12:27:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="QgYpyJdX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2439368AbfIWM1n (ORCPT ); Mon, 23 Sep 2019 08:27:43 -0400 Received: from mail-wm1-f65.google.com ([209.85.128.65]:55855 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2439379AbfIWM1m (ORCPT ); Mon, 23 Sep 2019 08:27:42 -0400 Received: by mail-wm1-f65.google.com with SMTP id a6so9711996wma.5 for ; Mon, 23 Sep 2019 05:27:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=cc:subject:to:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=6BZaDRgEC5jzqH7FZVcUy+IW26qqnA0ZOcbU1L56i3Q=; b=QgYpyJdXOvPAjZ06MRT3oMrg/yBcXyQuJ0eQPNColMz4JuKNt0Lz4EFgWqrZ19gNNy 7xMvPmEc0S9g/FelhF0J2ns4TahHmdQceSh9GFL25SeoJntpSz59WHM+HGkP96OLVWoU 3hEwpYApvQ0IbdJ4BOlUmlUsuKQQdXTnFBGrFcFRFO1TiI+FXX5PgH6p/dPCpra5Gbmt /KGy3Kx6DLb+kPR55SZybznf2JOPL+yd9pbCv43+slQi2W6aIWcPGyS1pbJ3MyPH42M6 dNj9gXeNb7kIsViZjVJuc87bU0dwR4Ut9tRpzBXG4Akkz2f+DfZowIDhgiE4U/JJZgqT zk+Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:cc:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=6BZaDRgEC5jzqH7FZVcUy+IW26qqnA0ZOcbU1L56i3Q=; b=lAXiUIFxICUI4CALiVBs8eWHXxmpHrZ4Uj327AG5rqgklPfekUA8t9laoiXRFJrj9g H+xX8ycEufzzOYwEGB0OTPP5GsvsgqCPjq5fi1kOx4v73gxIfp7EtA7JfkxEdTI9jAhI F4lY51HeeBRT7JEKEr8AOGzxwFSLmseTRm6CHmgxQOtAzjeMZG3EdB9toxNkA5WPDvSy XgSASaTZY6iiLR7L1QevcKl+LKj5kjvWS/3B+KlrFIoqOucejf3nAVaSU4C7Y7rJVhqA mT4trm/FLiMuFbfJFA4idvnGfvYoUNwC5qLCbsV61Dh7EvBjWrtQ3MpRFYeD0Ao9DO50 O6Bw== X-Gm-Message-State: APjAAAVj1vdi3J/0HzbXKXb5VLW+dH6gOIpB96BBS+Vvt2MLWYTeRqrf +xzTj79gToufYc0wWpmRJq0= X-Google-Smtp-Source: APXvYqyF8iuD/+u1hTRBJkC0JCyPGXCBRdTvq4Hs8WB+BPehUpxqY91D8UJYh2NZZ+tQ2fOa+sZ9MA== X-Received: by 2002:a7b:c92d:: with SMTP id h13mr14046573wml.169.1569241659602; Mon, 23 Sep 2019 05:27:39 -0700 (PDT) Received: from [10.0.20.253] ([95.157.63.22]) by smtp.gmail.com with ESMTPSA id z3sm9638231wmi.30.2019.09.23.05.27.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 23 Sep 2019 05:27:39 -0700 (PDT) Cc: mtk.manpages@gmail.com, linux-man@vger.kernel.org, benh@kernel.crashing.org, mpe@ellerman.id.au Subject: Re: [PATCH] getauxval.3: Add new cache geometry entries To: Raphael Moreira Zinsly References: <20190916184136.13621-1-rzinsly@linux.vnet.ibm.com> From: "Michael Kerrisk (man-pages)" Message-ID: <3a8ec98c-f93e-f186-b365-82857ec46395@gmail.com> Date: Mon, 23 Sep 2019 14:27:38 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <20190916184136.13621-1-rzinsly@linux.vnet.ibm.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-man-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-man@vger.kernel.org Hello Raphael, Thanks for this patch. I have a question below. On 9/16/19 8:41 PM, Raphael Moreira Zinsly wrote: > Add entries for the new cache geometry values of the auxiliary vectors > that got included in the kernel. > > Signed-off-by: Raphael Moreira Zinsly > --- > man3/getauxval.3 | 27 +++++++++++++++++++++++++++ > 1 file changed, 27 insertions(+) > > diff --git a/man3/getauxval.3 b/man3/getauxval.3 > index 794bc97b5..30f0757b5 100644 > --- a/man3/getauxval.3 > +++ b/man3/getauxval.3 > @@ -123,6 +123,33 @@ The instruction cache block size. > .\" .TP > .\" .BR AT_NOTELF > .TP > +.\" Kernel commit 98a5f361b8625c6f4841d6ba013bbf0e80d08147 > +.BR AT_L1D_CACHEGEOMETRY > +Geometry of the L1 data cache, that is, line size and number > +of ways. What is "number of ways"? Thanks, Michael > +.TP > +.BR AT_L1D_CACHESIZE > +The L1 data cache size. > +.TP > +.BR AT_L1I_CACHEGEOMETRY > +Geometry of the L1 instruction cache, that is, line size and > +number of ways. > +.TP > +.BR AT_L1I_CACHESIZE > +The L1 instruction cache size. > +.TP > +.BR AT_L2_CACHEGEOMETRY > +Geometry of the L2 cache, that is, line size and number of ways. > +.TP > +.BR AT_L2_CACHESIZE > +The L2 cache size. > +.TP > +.BR AT_L3_CACHEGEOMETRY > +Geometry of the L3 cache, that is, line size and number of ways. > +.TP > +.BR AT_L3_CACHESIZE > +The L3 cache size. > +.TP > .BR AT_PAGESZ > The system page size (the same value returned by > .IR sysconf(_SC_PAGESIZE) ). > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/