Messages in this thread | | | Subject | Re: remoteproc DMA API abuse status | From | Arnaud POULIQUEN <> | Date | Fri, 25 Jun 2021 09:27:09 +0200 |
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Hello Mathieu,
On 6/24/21 9:35 PM, Mathieu Poirier wrote: > Good day Christoph, > > On Wed, Jun 23, 2021 at 03:43:07PM +0200, Christoph Hellwig wrote: >> Hi remoteproc maintainers, >> >> did you make any progress to get remoteproc out of creating fake >> devices that fake their dma ops status and the abuse of >> dma_declare_coherent_memory in removeproc_virtio? I remember we had >> a discussion on this a long time ago, and there was an unfinished >> patchset to change the memory pool handling. What happened to all that? > > 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 :(
Regards, Arnaud
> > Thanks, > Mathieu >
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