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| author | Ming Qian <[email protected]> | 2025-04-24 10:33:24 +0000 |
|---|---|---|
| committer | Hans Verkuil <[email protected]> | 2025-07-12 06:34:48 +0000 |
| commit | 77ce8e4d6de72a4b8b8c4595a8c1c2305f3ac469 (patch) | |
| tree | 6f2b1248ce6a6e7633254a9ff528685206a17d77 /tools/perf/scripts/python/netdev-times.py | |
| parent | media: verisilicon: postproc: 4K support (diff) | |
| download | kernel-77ce8e4d6de72a4b8b8c4595a8c1c2305f3ac469.tar.gz kernel-77ce8e4d6de72a4b8b8c4595a8c1c2305f3ac469.zip | |
media: amphion: Support dmabuf and v4l2 buffer without binding
When using VB2_DMABUF, the relationship between dma-buf and v4l2 buffer
may not one-to-one, a single dma-buf may be queued via different
v4l2 buffers, and different dma-bufs may be queued via the same
v4l2 buffer, so it's not appropriate to use the v4l2 buffer index
as the frame store id.
We can generate a frame store id according to the dma address.
Then for a given dma-buf, the id is fixed.
Driver now manages the frame store and vb2-buffer states independently.
When a dmabuf is queued via another v4l2 buffer before the buffer is
released by firmware, need to pend it until firmware release it.
Signed-off-by: Ming Qian <[email protected]>
Reviewed-by: Nicolas Dufresne <[email protected]>
Signed-off-by: Nicolas Dufresne <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions