media: staging/intel-ipu3: Implement DMA mapping functions

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This driver uses IOVA space for buffer mapping through IPU3 MMU
to transfer data between imaging pipelines and system DDR.

Signed-off-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

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Tomasz Figa 2018-12-06 20:03:29 -05:00 • committed by Mauro Carvalho Chehab

parent 26f5689592

commit 2a2c51d328

2 changed files with 292 additions and 0 deletions

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270

drivers/staging/media/ipu3/ipu3-dmamap.c

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22

drivers/staging/media/ipu3/ipu3-dmamap.h

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