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=-5.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,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 34EC0C43215 for ; Wed, 27 Nov 2019 15:15:07 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id EAA2D2084D for ; Wed, 27 Nov 2019 15:15:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=xenosoft.de header.i=@xenosoft.de header.b="ql0fW+yq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EAA2D2084D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xenosoft.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 2C9B56B04B5; Wed, 27 Nov 2019 10:15:06 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 27B486B04B6; Wed, 27 Nov 2019 10:15:06 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1B8746B04B7; Wed, 27 Nov 2019 10:15:06 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0026.hostedemail.com [216.40.44.26]) by kanga.kvack.org (Postfix) with ESMTP id 06D7A6B04B5 for ; Wed, 27 Nov 2019 10:15:06 -0500 (EST) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with SMTP id C72B54DDC for ; Wed, 27 Nov 2019 15:15:05 +0000 (UTC) X-FDA: 76202405370.29.jam63_6682e4b472110 X-HE-Tag: jam63_6682e4b472110 X-Filterd-Recvd-Size: 3801 Received: from mo4-p01-ob.smtp.rzone.de (mo4-p01-ob.smtp.rzone.de [85.215.255.50]) by imf48.hostedemail.com (Postfix) with ESMTP for ; Wed, 27 Nov 2019 15:15:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1574867702; s=strato-dkim-0002; d=xenosoft.de; h=In-Reply-To:Date:Message-ID:From:References:Cc:To:Subject: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=rU6EJZnQMWHiAAMrDnvCSg5GJl/7kaL3qM/q2ihcwWc=; b=ql0fW+yqH/RCt3oCO6I3RI7Vxm6/4hKRQKf6vR3DFmhNHYyNt+DJMTVa21mhuHrmoB 0CraEHgK0DWmFlhAMHSV1bAGIUL2oYXSpXleGqzWkXSZa+732pMdkD5qD+xCZLytU2kp TnyBvFJjdrXgXXyw3xuoBlnDzw6FOhlZcEj0hQJ5HSJVgY8emh6j7gjwMEQM1U26d3q5 pQEcf2ekooKnROP7MoGnp7z+6ziPXuw70XY4MoTMwyp1cHgwiGePenY/N07ad2UmPVm0 uZ0UsoeaOWSdy5UVW6QZiFn8AxbXC1txGqHEDhEloPjAZO91j5D0qNJ2dFMQnwYcQ1HZ 1kYA== X-RZG-AUTH: ":L2QefEenb+UdBJSdRCXu93KJ1bmSGnhMdmOod1DhGM4l4Hio94KKxRySfLxnHfJ+Dkjp5DdBJSrwuuqxvPhUIxnPrrzntHiDgpTRUbNSOXek" X-RZG-CLASS-ID: mo00 Received: from [IPv6:2a02:8109:89c0:ebfc:7591:d54e:863:4581] by smtp.strato.de (RZmta 46.0.0 AUTH) with ESMTPSA id n05ae1vARFEh10O (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256 bits)) (Client did not present a certificate); Wed, 27 Nov 2019 16:14:43 +0100 (CET) Subject: Re: Bug 205201 - Booting halts if Dawicontrol DC-2976 UW SCSI board installed, unless RAM size limited to 3500M To: Mike Rapoport , Christoph Hellwig Cc: 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 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> <20191127065624.GB16913@linux.ibm.com> From: Christian Zigotzky Message-ID: <6a4289cf-d2b5-2357-f1ad-eeab44ab3b1e@xenosoft.de> Date: Wed, 27 Nov 2019 16:14:43 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1 MIME-Version: 1.0 In-Reply-To: <20191127065624.GB16913@linux.ibm.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: de-DE X-Bogosity: Ham, tests=bogofilter, spamicity=0.000009, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 27 November 2019 at 07:56 am, Mike Rapoport wrote: > > 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(); > > Hello Mike, I tested the latest Git kernel with your new patch today. My PCI TV card works without any problems. Thanks, Christian