Noralf Trønnes <noralf@tronnes.org> writes:

> This adds functionality to the CMA helper which ensures that the kernel
> virtual address is set on the CMA GEM object also for imported buffers.
>
> The drivers have been audited to ensure that none set ->vaddr on imported
> buffers, making the conditional dma_buf_vunmap() call in
> drm_gem_cma_free_object() safe.
>
> Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

I didn't look through 1-3 much since they had acks, but 4/5 get my:

Reviewed-by: Eric Anholt <eric@anholt.net>