[0/2] Add DmaSyncer
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Message ID 20241112100051.4071443-1-chenghaoyang@chromium.org
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  • Add DmaSyncer
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Harvey Yang Nov. 12, 2024, 9:56 a.m. UTC 
Hi folks,

This series of patches follows the discussion with Kieran in patch [1],
which adds a helper function and a helper class to make synchronizing
DMA buffers easier.

The second patch updates debayer_cpu to utilize the new helper class.
The following mtkisp7 pipeline handler will also depend on the helper
class.

I put the function in DmaBufAllocator and the helper class in the same
file for now. Let me know if I should put them elsewhere.

This passes gitlab pipeline:
https://gitlab.freedesktop.org/chenghaoyang/libcamera/-/pipelines/1308648

BR,
Harvey

[1]: [PATCH v4] libcamera: debayer_cpu: Sync DMABUFs

Harvey Yang (2):
  DmaBufAllocator: Add Dma Buffer synchronization function & helper
    class
  debayer_cpu: Replace syncing DMABUFs with DmaSyncer

 .../libcamera/internal/dma_buf_allocator.h    | 33 +++++++
 src/libcamera/dma_buf_allocator.cpp           | 88 +++++++++++++++++++
 src/libcamera/software_isp/debayer_cpu.cpp    | 29 ++----
 3 files changed, 129 insertions(+), 21 deletions(-)