From owner-svn-src-head@freebsd.org Sun Jan 14 17:52:19 2018 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 655BAE7D19F; Sun, 14 Jan 2018 17:52:19 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from kib.kiev.ua (kib.kiev.ua [IPv6:2001:470:d5e7:1::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id EB9C21F48; Sun, 14 Jan 2018 17:52:18 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from tom.home (kib@localhost [127.0.0.1]) by kib.kiev.ua (8.15.2/8.15.2) with ESMTPS id w0EHqBp9046498 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sun, 14 Jan 2018 19:52:14 +0200 (EET) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua w0EHqBp9046498 Received: (from kostik@localhost) by tom.home (8.15.2/8.15.2/Submit) id w0EHqBaP046497; Sun, 14 Jan 2018 19:52:11 +0200 (EET) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Sun, 14 Jan 2018 19:52:11 +0200 From: Konstantin Belousov To: Nathan Whitehorn Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r327950 - in head/sys/powerpc: aim include powerpc ps3 Message-ID: <20180114175211.GD1684@kib.kiev.ua> References: <201801132314.w0DNEra5002692@repo.freebsd.org> <20180113232441.GV1684@kib.kiev.ua> <010d0153-8931-a3c2-db21-dfcbaf848fc0@freebsd.org> <20180114083036.GX1684@kib.kiev.ua> <20180114170502.GB1684@kib.kiev.ua> <184ba3ee-a9f7-01ed-bb02-1bcba9acc041@freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <184ba3ee-a9f7-01ed-bb02-1bcba9acc041@freebsd.org> User-Agent: Mutt/1.9.2 (2017-12-15) X-Spam-Status: No, score=-2.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FROM,NML_ADSP_CUSTOM_MED autolearn=no autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on tom.home X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 14 Jan 2018 17:52:19 -0000 On Sun, Jan 14, 2018 at 09:30:53AM -0800, Nathan Whitehorn wrote: > The immediate consequence of that is that no MI code that knows about > direct maps can possibly take advantage of the direct map on this > platform. Do we really want that to save some conditional logic that > would get optimized out on amd64 and arm64 anyway? I really do not see > the benefit here. It is not clear what do you mean. Are you saying that there is no benefit of providing the conditional logic, or that it is not benefit of exclusing powerpc ? I do not object against adding the conditional, but it should not be too clumsy to use.