linux-kernel - Re: [Linaro-mm-sig] [PATCH 4/8] dma-buf: add peer2peer flag

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Message-ID: <20180425085559.GB29996@infradead.org>
Date:   Wed, 25 Apr 2018 01:55:59 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Thierry Reding <treding@...dia.com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Christian König <christian.koenig@....com>,
        "moderated list:DMA BUFFER SHARING FRAMEWORK" 
        <linaro-mm-sig@...ts.linaro.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        Jerome Glisse <jglisse@...hat.com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        "open list:DMA BUFFER SHARING FRAMEWORK" 
        <linux-media@...r.kernel.org>
Subject: Re: [Linaro-mm-sig] [PATCH 4/8] dma-buf: add peer2peer flag

On Wed, Apr 25, 2018 at 09:56:43AM +0200, Thierry Reding wrote:
> And to add to the confusion, none of this seems to be an issue on 64-bit
> ARM where the generic DMA/IOMMU code from drivers/iommu/dma-iommu.c is
> used.

In the long term I want everyone to use that code.  Help welcome!