From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <owner-linux-mm@kvack.org>
Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70])
	by kanga.kvack.org (Postfix) with ESMTP id D62288E00E5
	for <linux-mm@kvack.org>; Wed, 12 Dec 2018 09:39:44 -0500 (EST)
Received: by mail-wm1-f70.google.com with SMTP id l73so6020200wmb.1
        for <linux-mm@kvack.org>; Wed, 12 Dec 2018 06:39:44 -0800 (PST)
Received: from mo6-p02-ob.smtp.rzone.de (mo6-p02-ob.smtp.rzone.de. [2a01:238:20a:202:5302::8])
        by mx.google.com with ESMTPS id w15si9340142wrn.103.2018.12.12.06.39.43
        for <linux-mm@kvack.org>
        (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);
        Wed, 12 Dec 2018 06:39:43 -0800 (PST)
Content-Type: text/plain;
	charset=utf-8
Mime-Version: 1.0 (1.0)
Subject: Re: use generic DMA mapping code in powerpc V4
From: Christian Zigotzky <chzigotzky@xenosoft.de>
In-Reply-To: <20181212141556.GA4801@lst.de>
Date: Wed, 12 Dec 2018 15:39:40 +0100
Content-Transfer-Encoding: quoted-printable
Message-Id: <2242B4B2-6311-492E-BFF9-6740E36EC6D4@xenosoft.de>
References: <1948cf84-49ab-543c-472c-d18e27751903@xenosoft.de> <5a2ea855-b4b0-e48a-5c3e-c859a8451ca2@xenosoft.de> <7B6DDB28-8BF6-4589-84ED-F1D4D13BFED6@xenosoft.de> <8a2c4581-0c85-8065-f37e-984755eb31ab@xenosoft.de> <424bb228-c9e5-6593-1ab7-5950d9b2bd4e@xenosoft.de> <c86d76b4-b199-557e-bc64-4235729c1e72@xenosoft.de> <1ecb7692-f3fb-a246-91f9-2db1b9496305@xenosoft.de> <6c997c03-e072-97a9-8ae0-38a4363df919@xenosoft.de> <4cfb3f26-74e1-db01-b014-759f188bb5a6@xenosoft.de> <82879d3f-83de-6438-c1d6-49c571dcb671@xenosoft.de> <20181212141556.GA4801@lst.de>
Sender: owner-linux-mm@kvack.org
List-ID: <linux-mm.kvack.org>
To: Christoph Hellwig <hch@lst.de>
Cc: linux-arch@vger.kernel.org, Darren Stevens <darren@stevens-zone.net>, linux-kernel@vger.kernel.org, Julian Margetson <runaway@candw.ms>, linux-mm@kvack.org, iommu@lists.linux-foundation.org, Paul Mackerras <paulus@samba.org>, Olof Johansson <olof@lixom.net>, linuxppc-dev@lists.ozlabs.org

Hi Christoph,

Thanks a lot for your reply. I will test your patches tomorrow.

Cheers,
Christian

Sent from my iPhone

> On 12. Dec 2018, at 15:15, Christoph Hellwig <hch@lst.de> wrote:
>=20
> Thanks for bisecting.  I've spent some time going over the conversion
> but can't really pinpoint it.  I have three little patches that switch
> parts of the code to the generic version.  This is on top of the
> last good commmit (977706f9755d2d697aa6f45b4f9f0e07516efeda).
>=20
> Can you check with wh=D1=96ch one things stop working?
>=20
>=20
> <0001-get_required_mask.patch>
> <0002-swiotlb-dma_supported.patch>
> <0003-nommu-dma_supported.patch>
> <0004-alloc-free.patch>