linux-kernel - Re: remoteproc DMA API abuse status

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Date:   Mon, 28 Jun 2021 15:36:51 +0200
From:   Christoph Hellwig <hch@....de>
To:     Arnaud POULIQUEN <arnaud.pouliquen@...s.st.com>
Cc:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        Christoph Hellwig <hch@....de>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: remoteproc DMA API abuse status

On Fri, Jun 25, 2021 at 09:27:09AM +0200, Arnaud POULIQUEN wrote:
> > I believe the conversation and patchset you are referring to are pre-dating my
> > time in this subsystem.  To make sure I am looking at the right thing, can you
> > (or anyone else) point me to that discussion and related patches?
> 
> 2 references:
> 
> 1)Previous discussion thread on the topic:
> 
> https://patchwork.kernel.org/project/linux-remoteproc/patch/AOKowLclCbOCKxyiJ71WeNyuAAj2q8EUtxrXbyky5E@cp7-web-042.plabs.ch/
> 
> 2) My patchset related to the refactoring of remoteproc virtio which tries to
> address the point by creating a remoteproc platform driver and declaring a
> virtio subnode in the device tree remoteproc node.
> 
> https://lkml.org/lkml/2020/4/16/1817
> 
> No time yet on my side to come back on the patchset :(

I was hoping you'd make some progress on that.  Any way I could help
without having access to the relevant hardware myself?