[libcamera-devel,v3,0/2] Replace Raspberry Pi VCSM CMA with DMA heaps
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Message ID 20200717001518.20285-1-laurent.pinchart@ideasonboard.com
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  • Replace Raspberry Pi VCSM CMA with DMA heaps
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Laurent Pinchart July 17, 2020, 12:15 a.m. UTC 
Hi Naush,

I'm posting a v3 of your patches as I've rebased them on top of the
IPAInterface::configure() series that was recently merged. This version
contains the few changes I mentioned in the review of v2. Would you be
able to give it a last round of review ?

Feel free to push the kernel changes whenever is convenient, and notify
me when it will be done. I'll push this series right after.

Naushir Patuck (2):
  include: linux: Add dma-buf.h and dma-heap.h UAPI headers
  libcamera: pipeline: ipa: raspberrypi: Use dma heap allocs for LS
    tables

 include/linux/bcm2835-isp.h                   |   4 +-
 include/linux/dma-buf.h                       |  50 ++++++
 include/linux/dma-heap.h                      |  53 +++++++
 include/linux/vc_sm_cma_ioctl.h               | 135 ----------------
 src/ipa/raspberrypi/raspberrypi.cpp           |  28 +++-
 .../pipeline/raspberrypi/dma_heaps.cpp        |  84 ++++++++++
 .../pipeline/raspberrypi/dma_heaps.h          |  31 ++++
 .../pipeline/raspberrypi/meson.build          |   1 +
 .../pipeline/raspberrypi/raspberrypi.cpp      |  49 ++----
 src/libcamera/pipeline/raspberrypi/vcsm.h     | 149 ------------------
 10 files changed, 257 insertions(+), 327 deletions(-)
 create mode 100644 include/linux/dma-buf.h
 create mode 100644 include/linux/dma-heap.h
 delete mode 100644 include/linux/vc_sm_cma_ioctl.h
 create mode 100644 src/libcamera/pipeline/raspberrypi/dma_heaps.cpp
 create mode 100644 src/libcamera/pipeline/raspberrypi/dma_heaps.h
 delete mode 100644 src/libcamera/pipeline/raspberrypi/vcsm.h