From owner-svn-src-head@freebsd.org Thu Apr 25 19:11:08 2019 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 22783159FEFE; Thu, 25 Apr 2019 19:11:08 +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 4384395EDA; Thu, 25 Apr 2019 19:11:07 +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 x3PJAxNg041774 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Thu, 25 Apr 2019 22:11:02 +0300 (EEST) (envelope-from kostikbel@gmail.com) DKIM-Filter: OpenDKIM Filter v2.10.3 kib.kiev.ua x3PJAxNg041774 Received: (from kostik@localhost) by tom.home (8.15.2/8.15.2/Submit) id x3PJAxqG041773; Thu, 25 Apr 2019 22:10:59 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: tom.home: kostik set sender to kostikbel@gmail.com using -f Date: Thu, 25 Apr 2019 22:10:59 +0300 From: Konstantin Belousov To: Tycho Nightingale Cc: John Baldwin , src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r346687 - head/sys/compat/linuxkpi/common/src Message-ID: <20190425191059.GN12936@kib.kiev.ua> References: <201904251813.x3PIDut8078016@repo.freebsd.org> <20190425184300.GM12936@kib.kiev.ua> <78fc1980-3436-6155-a3bd-a3e85c6a5001@FreeBSD.org> <57248B07-6950-4AA0-8A92-B1D0C613E3DA@freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <57248B07-6950-4AA0-8A92-B1D0C613E3DA@freebsd.org> User-Agent: Mutt/1.11.4 (2019-03-13) X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,BAYES_00, DKIM_ADSP_CUSTOM_MED,FORGED_GMAIL_RCVD,FREEMAIL_FROM, NML_ADSP_CUSTOM_MED autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on tom.home X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 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: Thu, 25 Apr 2019 19:11:08 -0000 On Thu, Apr 25, 2019 at 02:56:36PM -0400, Tycho Nightingale wrote: > > > > On Apr 25, 2019, at 2:50 PM, John Baldwin wrote: > > > > On 4/25/19 11:43 AM, Konstantin Belousov wrote: > >> On Thu, Apr 25, 2019 at 06:13:56PM +0000, Tycho Nightingale wrote: > >>> Author: tychon > >>> Date: Thu Apr 25 18:13:55 2019 > >>> New Revision: 346687 > >>> URL: https://svnweb.freebsd.org/changeset/base/346687 > >>> > >>> Log: > >>> LinuxKPI buildfix for ppc64 after r346645. > >>> > >>> Proposed by: hselasky > >>> Sponsored by: Dell EMC Isilon > >>> > >>> Modified: > >>> head/sys/compat/linuxkpi/common/src/linux_pci.c > >>> > >>> Modified: head/sys/compat/linuxkpi/common/src/linux_pci.c > >>> ============================================================================== > >>> --- head/sys/compat/linuxkpi/common/src/linux_pci.c Thu Apr 25 17:28:36 2019 (r346686) > >>> +++ head/sys/compat/linuxkpi/common/src/linux_pci.c Thu Apr 25 18:13:55 2019 (r346687) > >>> @@ -137,9 +137,9 @@ linux_dma_tag_init(struct device *dev, u64 dma_mask) > >>> dma_mask, /* lowaddr */ > >>> BUS_SPACE_MAXADDR, /* highaddr */ > >>> NULL, NULL, /* filtfunc, filtfuncarg */ > >>> - BUS_SPACE_MAXADDR, /* maxsize */ > >>> + BUS_SPACE_MAXSIZE, /* maxsize */ > >>> 1, /* nsegments */ > >>> - BUS_SPACE_MAXADDR, /* maxsegsz */ > >>> + BUS_SPACE_MAXSIZE, /* maxsegsz */ > >>> 0, /* flags */ > >>> NULL, NULL, /* lockfunc, lockfuncarg */ > >>> &priv->dmat); > >> > >> It seems that amd64 BUS_SPACE_MAXSIZE is 4G, I do not know why. > >> Either we should fix that, or the following fix is more appropriate. > >> i386 and ppc both have PAE-like configs where maxaddr is 64bit but > >> maxsize is 32bit. > > > > I think we should fix amd64's maxsize. > > That sounds reasonable. Perhaps this was a conservative choice along with the 4GB DMA boundary which I removed recently. > > After some testing I can make this change. Please do.