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ea4baaacc3
The dma-buf allocator currently allocates from CMA and system heaps. Extend the dma-buf allocator to support allocating dma-buffers by creating memfd-s and turning those into dma-buffers using /dev/udmabuf. The buffers allocated through memfd/udmabuf are not suitable for zero-copy buffer sharing with other devices. Co-developed-by: Harvey Yang <chenghaoyang@chromium.org> Signed-off-by: Harvey Yang <chenghaoyang@chromium.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # Lenovo-x13s Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> |
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