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| author | Nikhil Devshatwar <[email protected]> | 2016-11-18 21:20:36 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <[email protected]> | 2016-11-22 08:07:53 -0200 |
| commit | 07e72eb0725ccd20b5cc26ee463def3f34606c7f (patch) | |
| tree | 65d8a7dc2e8ad5ee48def7103ea3fe956f99fe26 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | c786595beb89d74ff709b2ee382f34a1e0040d88 (diff) | |
[media] media: ti-vpe: vpdma: Use bidirectional cached buffers
VPDMA buffer will be used by CPU as well as by the VPDMA.
CPU will write/update the VPDMA descriptors containing data
about the video buffer DMA addresses.
VPDMA will write the "write descriptor" containing the
data about the DMA operation.
When mapping/unmapping the buffer, driver has to take care of
WriteBack and invalidation of the cache so that all the
coherency is maintained from both directions.
Use DMA_BIDIRECTIONAL to maintain coherency between CPU and VPDMA.
Signed-off-by: Nikhil Devshatwar <[email protected]>
Signed-off-by: Benoit Parrot <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions