drm/omap: gem: Implement dma_buf import

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OMAP GEM objects backed by dma_buf reuse the current OMAP GEM object
support as much as possible. If the imported buffer is physically
contiguous its physical address will be used directly, reusing the
OMAP_BO_MEM_DMA_API code paths. Otherwise it will be mapped through the
TILER using a pages list created from the scatterlist instead of the
shmem backing storage.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

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Laurent Pinchart 2015-12-14 22:39:44 +02:00 • committed by Tomi Valkeinen

parent 9cba3b9945

commit b22e6690a3

3 changed files with 159 additions and 34 deletions

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2

drivers/gpu/drm/omapdrm/omap_drv.h

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138

drivers/gpu/drm/omapdrm/omap_gem.c

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59

drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c

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