On Sun, Nov 13, 2022 at 07:35:20PM +0300, Dmitry Osipenko wrote:
> On 11/13/22 18:05, Lukasz Wiecaszek wrote:
> > +static int vmap_udmabuf(struct dma_buf *buf, struct iosys_map *map)
> > +{
> > + struct udmabuf *ubuf = buf->priv;
> > +
> > + if (!ubuf->vaddr) {
> > + ubuf->vaddr = vm_
On 11/13/22 18:05, Lukasz Wiecaszek wrote:
> +static int vmap_udmabuf(struct dma_buf *buf, struct iosys_map *map)
> +{
> + struct udmabuf *ubuf = buf->priv;
> +
> + if (!ubuf->vaddr) {
> + ubuf->vaddr = vm_map_ram(ubuf->pages, ubuf->pagecount, -1);
> + if (!ubuf->vad
On 11/13/22 18:05, Lukasz Wiecaszek wrote:
> The reason behind that patch is associated with videobuf2 subsystem
> (or more genrally with v4l2 framework) and user created
> dma buffers (udmabuf). In some circumstances
> when dealing with V4L2_MEMORY_DMABUF buffers videobuf2 subsystem
> wants to use
