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2019 Sep 02
1
[PATCH] drm/virtio: Use vmalloc for command buffer allocations.
...dia/v4l2-core/videobuf-dma-sg.c,
> > > assumes contiguous array of scatterlist and that the buffer being converted
> > > is page aligned
> >
> > Well, vmalloc memory _is_ page aligned.
>
> True, but this function gets called for all potential enqueuings (eg
> resource_create_3d, resource_attach_backing) and I was concerned that
> some other usage in the future might not have that guarantee.
The vmalloc_to_sg call is wrapped into "if (is_vmalloc())", so this
should not be a problem.
> > sg_alloc_table_from_pages() does alot of what you need, you just n...