Hi,
This patch set avoids attaching and mapping a dma_buf multiple times when
several planes in one vb2 buffer share the same dma_buf.
1/3 and 2/3 refactors __prepare_dmabuf()
3/3 adds a flag to avoid duplicated attaching
Changelog since v1:
- Add patch 1/3 to refactor __prepare_dmabuf()
- Add patch 2/3 to resolve Tomasz's comment on __vb2_buf_dmabuf_put()'s
iteration order
- Fix mem_priv in patch 3/3
- Rename duplicated_dbuf to dbuf_duplicated
Yunke Cao (3):
media: videobuf2-core: release all planes first in __prepare_dmabuf()
media: videobuf2-core: reverse the iteration order in
__vb2_buf_dmabuf_put
media: videobuf2-core: attach once if multiple planes share the same
dbuf
.../media/common/videobuf2/videobuf2-core.c | 97 +++++++++++--------
include/media/videobuf2-core.h | 3 +
2 files changed, 62 insertions(+), 38 deletions(-)
--
2.44.0.478.gd926399ef9-goog
