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Dave Airlie authored
The main requirement I have for this interface is for scanning out using the USB gpu devices. Since these devices have to read the framebuffer on updates and linearly compress it, using kmaps is a major overhead for every update. v2: fix warn issues pointed out by Sylwester Nawrocki. v3: fix compile !CONFIG_DMA_SHARED_BUFFER and add _GPL for now Signed-off-by:
Dave Airlie <airlied@redhat.com> Reviewed-by:
Rob Clark <rob.clark@linaro.org> Signed-off-by:
Sumit Semwal <sumit.semwal@linaro.org>
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