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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 EBC77C432C0 for ; Wed, 27 Nov 2019 06:56:39 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B4B5D206F0 for ; Wed, 27 Nov 2019 06:56:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B4B5D206F0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 492036B0351; Wed, 27 Nov 2019 01:56:39 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 4422B6B0352; Wed, 27 Nov 2019 01:56:39 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 331826B0353; Wed, 27 Nov 2019 01:56:39 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0037.hostedemail.com [216.40.44.37]) by kanga.kvack.org (Postfix) with ESMTP id 1B40C6B0351 for ; Wed, 27 Nov 2019 01:56:39 -0500 (EST) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id A1F0D3D01 for ; Wed, 27 Nov 2019 06:56:38 +0000 (UTC) X-FDA: 76201149276.29.waves14_7423776fe1e32 X-HE-Tag: waves14_7423776fe1e32 X-Filterd-Recvd-Size: 5397 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by imf21.hostedemail.com (Postfix) with ESMTP for ; Wed, 27 Nov 2019 06:56:37 +0000 (UTC) Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xAR6pUvd137992 for ; Wed, 27 Nov 2019 01:56:37 -0500 Received: from e06smtp03.uk.ibm.com (e06smtp03.uk.ibm.com [195.75.94.99]) by mx0a-001b2d01.pphosted.com with ESMTP id 2whhyf47wd-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 27 Nov 2019 01:56:36 -0500 Received: from localhost by e06smtp03.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 27 Nov 2019 06:56:29 -0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xAR6uSmL44302394 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 27 Nov 2019 06:56:28 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2F16711C054; Wed, 27 Nov 2019 06:56:28 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 07AD911C04A; Wed, 27 Nov 2019 06:56:27 +0000 (GMT) Received: from linux.ibm.com (unknown [9.148.8.105]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Wed, 27 Nov 2019 06:56:26 +0000 (GMT) Date: Wed, 27 Nov 2019 08:56:25 +0200 From: Mike Rapoport To: Christoph Hellwig Cc: Christian Zigotzky , Robin Murphy , linux-arch@vger.kernel.org, darren@stevens-zone.net, mad skateman , Benjamin Herrenschmidt , linux-kernel@vger.kernel.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org, Rob Herring , paulus@samba.org, rtd2@xtra.co.nz, "contact@a-eon.com" , linuxppc-dev , nsaenzjulienne@suse.de Subject: Re: Bug 205201 - Booting halts if Dawicontrol DC-2976 UW SCSI board installed, unless RAM size limited to 3500M References: <20191121072943.GA24024@lst.de> <6eec5c42-019c-a988-fc2a-cb804194683d@xenosoft.de> <20191121180226.GA3852@lst.de> <2fde79cf-875f-94e6-4a1b-f73ebb2e2c32@xenosoft.de> <20191125073923.GA30168@lst.de> <4681f5fe-c095-15f5-9221-4b55e940bafc@xenosoft.de> <20191126164026.GA8026@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191126164026.GA8026@lst.de> User-Agent: Mutt/1.5.24 (2015-08-30) X-TM-AS-GCONF: 00 x-cbid: 19112706-0012-0000-0000-0000036CCE06 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19112706-0013-0000-0000-000021A875C1 Message-Id: <20191127065624.GB16913@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-11-27_01:2019-11-26,2019-11-27 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=2 clxscore=1015 priorityscore=1501 lowpriorityscore=0 bulkscore=0 phishscore=0 impostorscore=0 mlxlogscore=999 spamscore=0 mlxscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1911270055 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Nov 26, 2019 at 05:40:26PM +0100, Christoph Hellwig wrote: > On Tue, Nov 26, 2019 at 12:26:38PM +0100, Christian Zigotzky wrote: > > Hello Christoph, > > > > The PCI TV card works with your patch! I was able to patch your Git kernel > > with the patch above. > > > > I haven't found any error messages in the dmesg yet. > > Thanks. Unfortunately this is a bit of a hack as we need to set > the mask based on runtime information like the magic FSL PCIe window. > Let me try to draft something better up, and thanks already for testing > this one! Maybe we'll simply force bottom up allocation before calling swiotlb_init()? Anyway, it's the last memblock allocation. diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 62f74b1b33bd..771e6cf7e2b9 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -286,14 +286,15 @@ void __init mem_init(void) /* * book3s is limited to 16 page sizes due to encoding this in * a 4-bit field for slices. */ BUILD_BUG_ON(MMU_PAGE_COUNT > 16); #ifdef CONFIG_SWIOTLB + memblock_set_bottom_up(true); swiotlb_init(0); #endif high_memory = (void *) __va(max_low_pfn * PAGE_SIZE); set_max_mapnr(max_pfn); memblock_free_all(); -- Sincerely yours, Mike.