On Mon, 2020-05-04 at 12:25 +0300, Laurent Pinchart wrote: > From: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx> > > With the vc-sm-cma driver we can support zero copy of buffers between > the kernel and VPU. Add this support to vchiq-mmal. > > Signed-off-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx> > > staging: vc-sm-cma: Use a void* pointer as the handle within the kernel > > The driver was using an unsigned int as the handle to the outside world, > and doing a nasty cast to the struct dmabuf when handed it back. > This breaks badly with a 64 bit kernel where the pointer doesn't fit > in an unsigned int. > > Switch to using a void* within the kernel. Reality is that it is > a struct dma_buf*, but advertising it as such to other drivers seems > to encourage the use of it as such, and I'm not sure on the implications > of that. > > Signed-off-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx> > Signed-off-by: Jacopo Mondi <jacopo@xxxxxxxxxx> I think this patch's description needs to be updated. Regards, Nicolas
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