Displaying 2 results from an estimated 2 matches for "virtio_dma_op".
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virtio_dma_ops
2020 Apr 28
0
[PATCH 5/5] virtio: Add bounce DMA ops
...dev_addr + bounce_buf_paddr;
> +
> + _swiotlb_tbl_unmap_single(virtio_pool, dev, addr, size,
> + size, dir, attrs);
> +}
> +
> +size_t virtio_max_mapping_size(struct device *dev)
> +{
> + return VIRTIO_MAX_BOUNCE_SIZE;
> +}
> +
> +static const struct dma_map_ops virtio_dma_ops = {
> + .alloc = virtio_alloc_coherent,
> + .free = virtio_free_coherent,
> + .map_page = virtio_map_page,
> + .unmap_page = virtio_unmap_page,
> + .max_mapping_size = virtio_max_mapping_size,
> +};
> +
> +void virtio_bounce_set_dma_ops(struct virtio_device *vdev)
>...
2020 Apr 28
1
[PATCH 5/5] virtio: Add bounce DMA ops
...chaning DMA ops, or by doing some automatic change
to all drivers.
> > > +void virtio_bounce_set_dma_ops(struct virtio_device *vdev)
> > > +{
> > > + if (!bounce_buf_paddr)
> > > + return;
> > > +
> > > + set_dma_ops(vdev->dev.parent, &virtio_dma_ops);
> >
> >
> > I don't think DMA API maintainers will be happy with new users
> > of set_dma_ops.
>
> Is there an alternate API that is more preffered?
all this is supposed to be part of DMA API itself. new drivers aren't
supposed to have custom DMA ops.
&...